CN104457111A - Door opener and device having same - Google Patents

Abstract

The invention provides a door opener capable of smoothly opening an adjacent door without a sudden feeling, and miniaturization can be achieved compared with the prior art. The door opener (60) has: a reduction gear train (83) for reducing rotation speed of a motor (82) and transmitting driving force of the motor (82); a big gear (76) capable of rotating in positive and negative directions via the reduction gear train (83) transmitting the driving force of the motor (82); first and second intermittent driving gears (78a, 78b) intermittently engaged with the big gear (76) corresponding to rotation angles of the big gear (76); a first protruding part (61a) for transmitting the driving force from the first intermittent driving gear (78a) and pressing and opening a first door via protruding towards the first door; and a second protruding part (61b) for transmitting the driving force from the second intermittent driving gear (78b) and pressing and opening a second door via protruding towards the second door.

Description

Door opener and possess the equipment of this door opener

Technical field

The present invention relates to door opener and possess the equipment of this door opener.

Background technology

In the past, be known to open the pivot door of household appliances, furniture etc., the device (for example, referring to patent document 1 to patent document 3) of drawing and pulling type door.

Record in patent document 1 as lower device, that is, utilize the driving force of motor that transmission gear is rotated in forward and reverse direction, when the rotation of its positive direction, the first projecting part is advanced, make the second projecting part retreat simultaneously.This device is configured to, and opens first when making the first projecting part give prominence to, and opens second when making the second projecting part give prominence to.

Record in patent document 2 as lower device, that is, utilize o to extrude the push rod be made up of magnetic, thus open door.

Record in patent document 3 as lower device, that is, utilize pinion and rack that the revolving force of motor is transformed to reciprocal forward drive power, thus pressure ram and open door.

Patent document 1: Japan Patent No. 3604947 publication

Patent document 2: Japan Patent No. 4151966 publication

Patent document 3: Japanese Unexamined Patent Publication 4-17549 publication

But in the device of patent document 1, while a projecting part advance, another projecting part retreats, so need the space holding the projecting part retreated.Therefore the problem of larger-scale unit is had.

In addition, in the device of patent document 2, owing to being the structure utilizing o to make push rod movement, so need to arrange the space importing push rod at the rear of o.Therefore the problem of larger-scale unit is had.

In addition, in the device of patent document 3, owing to being started the outstanding action of bar by the engagement of pinion and tooth bar, and the outstanding power of bar reduces simultaneously, thus has the problem that cannot be opened by door larger for the load opening beginning smoothly and with eliminating unexpected sense.

Summary of the invention

Therefore problem of the present invention is to provide as downward opening door device and the equipment possessing this door opener, that is, can smoothly and without suddenly opening adjacent door to sense, and compared with the pastly can realize miniaturization.

The feature solving the door opener of the present invention of above-mentioned problem is to possess: the motor that can rotate in forward and reverse direction; The rotation of said motor is slowed down and transmits the reducing gear train of the driving force of said motor; The gear wheel that can rotate in forward and reverse direction via the driving force of above-mentioned reducing gear train transmission said motor; Engage with above-mentioned gear wheel in the first angular range of above-mentioned gear wheel and the first intermittent driving gear rotated; Engage with above-mentioned gear wheel in the second angular range different from above-mentioned first angular range and the second intermittent driving gear rotated; Also pass through towards first outstanding pressing from above-mentioned first intermittent driving gear transmission of drive force and open first projecting part of above-mentioned first; And from above-mentioned second intermittent driving gear transmission of drive force and by opening second projecting part of above-mentioned second towards second outstanding pressing, carry out the outstanding action of any one projecting part in the first projecting part or the second projecting part accordingly with the direction of rotation of said motor, thus open wide above-mentioned first and above-mentioned second.

In addition, the feature solving the equipment of the present invention of above-mentioned problem is to possess above-mentioned door opener.

The effect of invention is as follows.

According to the present invention, can provide as downward opening door device and the equipment possessing this door opener, that is, can smoothly and without suddenly opening adjacent door to sense, and compared with the pastly can realize miniaturization.

Accompanying drawing explanation

Fig. 1 is the front view of the refrigerator of embodiments of the present invention.

Fig. 2 is the sectional view of the A-A section schematically showing Fig. 1.

Fig. 3 is the front view of the structure represented in the case of refrigerator.

Fig. 4 is that the major part of Fig. 2 amplifies key diagram.

Fig. 5 is the top view of the refrigerator observed from the B direction of Fig. 1.

Fig. 6 (a) ~ Fig. 6 (c) is the action specification figure of the door closer of refrigerator.

Fig. 7 is the stereogram of the door opener of embodiments of the present invention.

Fig. 8 is the top view of door opener.

Fig. 9 is the C-C sectional view of Fig. 8.

Figure 10 represents the gear wheel of door opener and the stereogram of intermittent driving gear.

Figure 11 is the D-D sectional view of Fig. 8.

Figure 12 represents the swivel plate of door opener and the top view of web.

Figure 13 is the E-E sectional view of Fig. 9.

Figure 14 is the F-F sectional view of Fig. 8.

Figure 15 (a) is the stereogram of the sense switch operating member possessing switch lever and sense switch, and Figure 15 (b) is the exploded perspective view of sense switch operating member.

Figure 16 is the cam part of door opener and the configuration instruction figure of switch lever.

Figure 17 (a) ~ Figure 17 (f) is the top view of the position relationship schematically showing the gear wheel of door opener, intermittent driving gear and switch lever.

The figure of when Figure 18 is the left side door opening action that door opener is described, the spinning movement of cam part and the ON/OFF state of sense switch.

The figure of when Figure 19 is the right side door opening action that door opener is described, the spinning movement of cam part and the ON/OFF state of sense switch.

The figure of ON/OFF state when Figure 20 is left side door opening action and the right side door opening action that door opener is described, sense switch.

Figure 21 represents that the projecting part in left side is the top view of the door opener of state in outstanding action.

Figure 22 represents that the projecting part in left side is the top view of the door opener of state in outstanding action.

Figure 23 represents that the projecting part in left side is the top view of the door opener of state in outstanding action.

Figure 24 represents that the projecting part in left side is the top view of the door opener of state in outstanding action.

Figure 25 represents that the projecting part in left side is the top view of the door opener of state in outstanding action.

Figure 26 represents that the projecting part on right side is the top view of the door opener of state in outstanding action.

Figure 27 represents that the projecting part on right side is the top view of the door opener of state in outstanding action.

Figure 28 represents that the projecting part on right side is the top view of the door opener of state in outstanding action.

Figure 29 represents that the projecting part on right side is the top view of the door opener of state in outstanding action.

Figure 30 represents that the projecting part on right side is the top view of the door opener of state in outstanding action.

Figure 31 (a) ~ Figure 31 (e) is the key diagram of the door opening action of the refrigerating-chamber door of the left and right of door opener.

Figure 32 be represent when being opened by the refrigerating-chamber door of closedown, the chart of the open angle of door and the relation of enabling power.

Figure 33 (a) is the chart representing the angular speed of preferred refrigerating-chamber door when opening refrigerating-chamber door and the relation of opening time, and Figure 33 (b) is the chart representing the open angle of refrigerating-chamber door and the relation of opening time.

Figure 34 (a) ~ Figure 34 (f) is the swivel plate of door opener and the action specification figure of web.

Figure 35 (a) is when representing that projecting part is given prominence to, the chart of speed and the relation of time, and Figure 35 (b) is the chart of the relation representing power and time.

Figure 36 (a) be represent the projecting part in left side when giving prominence to, the key diagram of the relation of the speed of the speed of projecting part and the end of left side refrigerating-chamber door, Figure 36 (b) is the key diagram of the relation of the speed of when representing that the projecting part on right side is given prominence to, the speed of projecting part and the end of right refrigeration compartment door.

Figure 37 is the top view of the preferred example schematically showing door opener.

Figure 38 is the block diagram of the structure of the control system representing door opener.

Figure 39 is the flow chart of the control sequence of the initialization action representing door opener.

Figure 40 is the flow chart of the control sequence representing the left side door opening action that the control part of door opener carries out.

Figure 41 is the flow chart of the control sequence representing the right side door opening action that the control part of door opener carries out.

Each action timing diagram of door open switch when Figure 42 is the left side door opening action representing door opener, sense switch and motor.

Each action timing diagram of door open switch when Figure 43 is the right side door opening action representing door opener, sense switch and motor.

Figure 44 (a) and Figure 44 (b) is action specification figure when representing that projecting part abuts with the plane bearing surface of refrigerating-chamber door.

Figure 45 (a) and Figure 45 (b) is the action specification figure of projecting part when abutting with the bearing surface that the side face of the semicolumn of refrigerating-chamber door is formed.

Figure 46 is the top view of the door opener with waterproof rib.

Figure 47 is the top view of the variation representing swivel plate and web.

Figure 48 (a) ~ Figure 48 (f) is the swivel plate of variation and the action specification figure of web.

Figure 49 (a) is the chart of when associatedly representing with the swivel plate of the variation of Figure 47 and web that projecting part is given prominence to, speed and the relation of time, and Figure 49 (b) is the chart of the relation representing power and time.

In figure:

1-refrigerator, 2a-refrigerating-chamber door (first), 2b-refrigerating-chamber door (second), 18-rotatable spacer, 37-door closer, 40-control panel, 41-controls substrate, 48a-L.H.flapped door switch, 48b-R.H.flapped door switch, 55a-waterproof rib, 55b-waterproof rib, 60-door opener, 61a-projecting part (the first projecting part), 61b-projecting part (the second projecting part), 64a-front end component, 64b-front end component, 65a-web, 65b-web, 73a-swivel plate, 73b-swivel plate, 76-gear wheel, 78a-intermittent driving gear (the first intermittent driving gear), 78b-intermittent driving gear (the second intermittent driving gear), 82-motor, 83-reducing gear train, 95a-sense switch, 95b-sense switch, 96a-switch lever, 96b-switch lever, 96Ca-switch lever leading section, 96Cb-switch lever leading section, 97-detection springs, 99-cam part, 105-first scope, 106-second scope, 107-the 3rd scope.

Detailed description of the invention

Below, suitably with reference to accompanying drawing, the example of for implementing form of the present invention (hereinafter referred to as " embodiment ") is described in detail.In addition, in each accompanying drawing, also the repetitive description thereof will be omitted to mark identical symbol to general part.In addition, in the following description, direction up and down with the direction up and down shown in Fig. 1 for benchmark, the direction of front and back with the direction of the front and back shown in Fig. 2 for benchmark.

First, before the door opener that embodiments of the present invention are described, the overall structure of refrigerator of the door opener possessing present embodiment is described." refrigerator " " the possessing the equipment of door opener " described in claims should be equivalent to.

" overall structure of refrigerator "

Fig. 1 is the front view of the refrigerator of embodiments of the present invention.

As shown in Figure 1, the refrigerator 1 of present embodiment has refrigerating chamber 2, left and right ice-making compartment 3 arranged side by side and upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5, vegetable compartment 6 from top.In addition, as an example, refrigerating chamber 2 and vegetable compartment 6 are storerooms of the refrigerated storage temperature band of about 3 ~ 5 DEG C.In addition, ice-making compartment 3, upper strata refrigerating chamber 4 and lower floor's refrigerating chamber 5 are storerooms of the cryogenic temperature band of about-18 DEG C.

The refrigerating-chamber door 2a of so-called French that refrigerating chamber 2 possesses left and right segmentation, that split at front side (the paper nearby side of Fig. 1) and refrigerating-chamber door 2b.Refrigerating-chamber door 2a, 2b rotate around hinge 17a and hinge 17b.In order to refrigerating-chamber door 2a, 2b gap each other of closed left and right, be provided with rotatable spacer 18 along refrigerating-chamber door 2a close to refrigerating-chamber door 2b.This structure of later detailed description.

Ice-making compartment 3, upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 and vegetable compartment 6 possess ice-making compartment door 3a, upper strata refrigerating chamber door 4a, the lower floor refrigerating chamber door 5a and vegetable compartment door 6a of drawing and pulling type respectively.In addition, in the following description, have respectively by refrigerating-chamber door 2a, the 2b of left and right, ice-making compartment door 3a, upper strata refrigerating chamber door 4a, lower floor refrigerating chamber door 5a and the vegetable compartment door 6a situation simply referred to as door 2a, door 2b, door 3a, door 4a, door 5a and door 6a.

Refrigerator 1 possesses: the door sensor (omitting diagram) of detecting gate 2a, door 2b, door 3a, door 4a, door 5a and door 6a open and-shut mode separately; When at least one state of opening wide be judged to be in above-mentioned door 2a, 2b, 3a, 4a, 5a, door 6a continues stipulated time (such as, more than 1 minute), report this alarm looked like (omitting diagram) to user; And the temperature setting device (possessing the control panel 40 shown in Fig. 1 of the operating portion of regulation, display part etc.) etc. that the temperature of carrying out refrigerating chamber 2, upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 etc. sets.

In addition, be provided with L.H.flapped door switch 48a at refrigerating-chamber door 2a, be provided with R.H.flapped door switch 48b at refrigerating-chamber door 2b.

Fig. 2 is the sectional view of the A-A section schematically representing Fig. 1.

As shown in Figure 2, the case of refrigerator 1 is outer and case is interior is separated by body of thermal insulating box 10, and this body of thermal insulating box 10 is formed by filling with foam insulation materials (polyurathamc) between interior case 10a and outer container 10b.In addition, the body of thermal insulating box 10 of refrigerator 1 is provided with multiple vacuum heat insulation materials (Vacuum Insulation Panel) 14.

There are the multiple storerooms configured at the above-below direction that temperature band is different with the model split of thermal insulation by adiabatic partition wall 11a, 11b in case.That is, upper strata refrigerating chamber 4 and the ice-making compartment 3 (with reference to Fig. 1) of the refrigerating chamber 2 as the storeroom of refrigerated storage temperature band and the storeroom as cryogenic temperature band is separated by the adiabatic partition wall 11a of upside.In addition, the lower floor's refrigerating chamber 5 as the storeroom of cryogenic temperature band and the vegetable compartment 6 as the storeroom of refrigerated storage temperature band is separated by the adiabatic partition wall 11b of downside.

Multiple door compartment 13 is provided with inside the case of door 2a, 2b.In addition, refrigerating chamber 2 is divided into multiple storage space by multiple shelf 12 in the vertical.

For upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 and vegetable compartment 6, at the rear of door 4a, 5a, 6a in front being located at each storeroom, be respectively equipped with and hold container 4b, 5b, 6b.And, by the not shown handle portion that hand is placed on 4a, 5a, 6a goes out to nearby layback, pull out and hold container 4b, 5b, 6b.Also identical for the ice-making compartment 3 shown in Fig. 1, be provided with at the rear of door 3a and hold container (in Fig. 2, being represented by symbol 3b), going out to nearby layback by hand being placed on the not shown handle portion of a 3a, pulling out and holding container 3b.

As shown in Figure 2, door spacer 15 is provided with around door 2a, 2b, 3a, 4a, 5a, 6a, after closedown each door 2a, 2b, 3a, 4a, 5a, 6a, by with refrigerator 1 before opening circumference be close to and close and close the inside of storage space (refrigerating chamber 2, ice-making compartment 3, upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 and vegetable compartment 6), thus prevent cold air from externally leaking from above-mentioned storage space.

As shown in Figure 2, cooler 7 is configured in the cooler accommodating chamber 8 roughly set by back of lower floor's refrigerating chamber 5.Cooler 7 is formed by installing multiple fin (omit diagram) at cooler pipe arrangement 7d, can cold-producing medium in cooler pipe arrangement 7d and carry out heat exchange between air.

Pressure fan 9 (fan such as, be driven by a motor) in case is provided with above cooler 7.The air turned cold carrying out heat exchange in cooler 7 by pressure fan in case 9 is (following, the air of the low temperature this turned cold is called " cold air ") via refrigerating chamber air-supply passage 22, vegetable compartment air-supply passage 25, ice-making compartment air-supply passage 26a, upper strata refrigerating chamber air-supply passage 26b and lower floor's refrigerating chamber air-supply passage 27, and be sent to each storeroom of refrigerating chamber 2, vegetable compartment 6, ice-making compartment 3, upper strata refrigerating chamber 4 and lower floor's refrigerating chamber 5.

Fig. 3 is the front view of the structure represented in the case of refrigerator.

As shown in Figure 3, in Fig. 3, each air-supply passage for refrigerating chamber 2, ice-making compartment 3, upper strata refrigerating chamber 4, lower floor's refrigerating chamber 5 and vegetable compartment 6 is located at the rear side of each storeroom of refrigerator 1 shown in dotted linely.

Which storeroom the Quilt with air conditioning of cooler 7 is sent to is controlled by refrigerated storage temperature band room cold air control unit 20 and cryogenic temperature band room cold air control unit 21.

Herein, refrigerated storage temperature band room cold air control unit 20 is the two air doors of what is called possessing independently two opening portions, first opening 20a controls the air-supply for refrigerating chamber air-supply passage 22, and the second opening 20b controls the air-supply for vegetable compartment air-supply passage 25.In addition, cryogenic temperature band room cold air control unit 21 is the single air doors possessing independent opening portion, controls the air-supply for ice-making compartment air-supply passage 26a (with reference to Fig. 2), upper strata refrigerating chamber air-supply passage 26b (with reference to Fig. 2) and lower floor's refrigerating chamber air-supply passage 27 (with reference to Fig. 2).

Specifically, when the first opening 20a of refrigerated storage temperature band room cold air control unit 20 is open mode, cold air is sent to refrigerating chamber 2 via refrigerating chamber upstream passageway 23 (aftermentioned) and refrigerating chamber air-supply passage 22.That is, cold air is provided with multiple blow-off outlet 2c from the bearing of trend along this refrigerating chamber air-supply passage 22 and is sent to refrigerating chamber 2.In addition, the cold air after refrigerated compartment 2 from being located at the return port 2d of bottom of refrigerating chamber 2 via refrigerating chamber backward channel 24, and flows into cooler accommodating chamber 8 from the bottom, side of cooler accommodating chamber 8, and carries out heat exchange with cooler 7.

When the second opening 20b of refrigerated storage temperature band room cold air control unit 20 is open mode, cold air, via refrigerating chamber upstream passageway 23 (with reference to Fig. 4) and vegetable compartment air-supply passage 25 described later, is sent to vegetable compartment 6 from blow-off outlet 6c.In addition, the cold air after cooling vegetable compartment 6 flows into cooler accommodating chamber 8 via return port 6d (with reference to Fig. 2) from the bottom of cooler accommodating chamber 8, and carries out heat exchange with cooler 7.Further, vegetable compartment 6 circulate air quantity than the air quantity circulated at refrigerating chamber 2 or cryogenic temperature band room cold air control unit 21 circulate air quantity few.

When cryogenic temperature band room cold air control unit 21 is open mode, cold air, via ice-making compartment air-supply passage 26a (with reference to Fig. 2), upper strata refrigerating chamber air-supply passage 26b (with reference to Fig. 2), is sent to ice-making compartment 3 and upper strata refrigerating chamber 4 respectively from blow-off outlet 3c, 4c.In addition, cold air is sent to lower floor's refrigerating chamber 5 via above-mentioned lower floor's refrigerating chamber air-supply passage 27 (with reference to Fig. 2) from blow-off outlet 5c.Like this, cryogenic temperature band room cold air control unit 21 is installed on the top of air-supply hood 31 (with reference to Fig. 4) described later, thus easily carries out the air-supply for ice-making compartment 3.

In addition, be sent to the cold air of ice-making compartment 3 via above-mentioned ice-making compartment air-supply passage 26a (with reference to Fig. 2) and decline to lower floor's refrigerating chamber 5 via the cold air that above-mentioned upper strata refrigerating chamber air-supply passage 26b (with reference to Fig. 2) is sent to upper strata refrigerating chamber 4.And, this cold air be sent to together with the cold air of lower floor's refrigerating chamber via lower floor's refrigerating chamber air-supply passage 27, flow into cooler accommodating chamber 8 via the refrigerating chamber return port described later 28 (with reference to Fig. 2) being located at below in lower floor's refrigerating chamber 5, and carry out heat exchange with cooler 7.

Cold air after cooling ice-making compartment 3, upper strata refrigerating chamber 4 and above-mentioned lower floor's refrigerating chamber 5 returns cooler accommodating chamber 8 via the refrigerating chamber return port 28 being located at below in lower floor's refrigerating chamber 5.Further, the width dimensions of the width size of refrigerating chamber return port 28 and the left and right of cooler 7 is roughly equal.

Fig. 4 is that the major part of Fig. 2 amplifies key diagram.

As shown in Figure 4, the back side, the cryogenic temperature band room separator 29 being formed with blow-off outlet 3c, 4c, 5c is at upper strata refrigerating chamber 4, ice-making compartment 3 and divide between lower floor's refrigerating chamber 5 and cooler accommodating chamber 8.

The pressure fan support 30 being provided with pressure fan 9 in case divides between cooler accommodating chamber 8 and the back side, cryogenic temperature band room separator 29.

Air-supply hood 31 configures in the mode covered in case before pressure fan 9.Between air-supply hood 31 and the back side, cryogenic temperature band room separator 29, be formed with ice-making compartment air-supply passage 26a, upper strata refrigerating chamber air-supply passage 26b and lower floor's refrigerating chamber air-supply passage 27 of cold air guiding blow-off outlet 3c, 4c, the 5c for being sent here by pressure fan in case 9.In addition, be formed with blow-off outlet 31a on the top of air-supply hood 31, be provided with cryogenic temperature band room cold air control unit 21 at this blow-off outlet 31a.

In addition, hood 31 of blowing also realizes the effect cold air sent here by pressure fan in case 9 being delivered to cold air control unit 20 side, refrigerated storage temperature band room.That is, cold air control unit 20 side, refrigerated storage temperature band room is not directed to the cold air that cryogenic temperature band room cold air control unit 21 effluent being located at air-supply hood 31 is dynamic via refrigerating chamber upstream passageway 23.

In addition, hood 31 of blowing possesses rectification part 31b before pressure fan 9 in case.Rectification part 31b carries out rectification to the sinuous flow caused by the cold air of blowout, thus prevents the generation of noise.

In addition, with when refrigerated storage temperature band room cold air control unit 20 and cryogenic temperature band room cold air control unit 21 are open mode, most cold air is delivered to cold air control unit 21 side, cryogenic temperature band room, by remaining other cold air guiding cold air control unit 20 side, refrigerated storage temperature band room mode formed each air-supply passage 26a, 26b, 27.Thereby, it is possible to a cooler to as the cryogenic temperature band room (ice-making compartment 3, upper strata refrigerating chamber 4 and lower floor's refrigerating chamber 5) of the different storeroom of temperature band and refrigerated storage temperature band room (refrigerating chamber 2 and vegetable compartment 6) cool-air feed.

As mentioned above, the switching delivering to the cold air of each storeroom of refrigerator 1 can by suitably open and close controlling refrigerated storage temperature band room cold air control unit 20 and cryogenic temperature band room cold air control unit 21 carry out respectively.

Being provided with the Defrost heater 35 as defrost unit in the below of cooler 7, above Defrost heater 35, being provided with upper lid 36 to prevent defrost water from dripping to Defrost heater 35.

Because of to be attached to cooler 7 and its periphery cooler accommodating chamber 8 wall on frost to defrost (melting) and the defrost water produced flows into the chute 32 be equipped with in the bottom of cooler accommodating chamber 8, the evaporating dish 34 being configured at Machine Room 50 is arrived afterwards via drainpipe 33, because of next illustrate compressor 51 (with reference to Fig. 3), condenser 52 (with reference to Fig. 3) heat and evaporate, and to discharge outside refrigerator.

As shown in Figure 3, Machine Room 50 is provided with in the lower back side of body of thermal insulating box 10.Be configured with in Machine Room 50: compressed refrigerant (Refrigerant) and the compressor 51 spued; Cold-producing medium and air is made to carry out the condenser (Condenser) 52 of heat exchange; Promote the outer pressure fan 53 of the case of the heat exchange of the cold-producing medium in condenser 52 and air; And as the decompressing unit 54 of tubule (Capillary).

In addition, compressor 51, condenser 52, decompressing unit 54 are connected with cooler 7 (evaporimeter) by pipe arrangement, thus form the refrigerant path (refrigerant loop) for cold-producing medium circulation.

As shown in Figure 2, in the upper surface side of the ceiling of refrigerator 1, be configured with as control part and control substrate 41, this control substrate 41 is the control parts being equipped with memory, the interface circuits etc. such as CPU, ROM or RAM.At refrigerator 1, the chiller temperature sensor 47 equitemperature sensor refrigerator temperature sensor 44 of the temperature detecting refrigerating chamber 2 being set, detecting the vegetable compartment temperature sensor 45 of the temperature of vegetable compartment 6, detect the freezer temperature sensor 46 of the temperature of cryogenic temperature band room (ice-making compartment 3, upper strata refrigerating chamber 4 and lower floor's refrigerating chamber 5), detect the temperature of cooler 7, and input to control substrate 41 temperature detected.

In addition, control the door sensor (omits and illustrate) of substrate 41 and the respectively open and-shut mode of detecting gate 2a, 2b, 3a, 4a, 5a, 6a, be located at the above-mentioned control panel 40 (reference Fig. 1) of a 2a, the above-mentioned L.H.flapped door switch 48a (reference Fig. 1) being located at 2a, 2b and above-mentioned R.H.flapped door switch 48b (reference Fig. 1) is connected.

Controlling substrate 41 by being equipped on the program of above-mentioned ROM in advance, coming to control as follows thus the running of refrigerator entirety can be controlled: the on/off of compressor 51 or the control of rotary speed; Separately drive the control of each CD-ROM drive motor of refrigerated storage temperature band room cold air control unit 20 and cryogenic temperature band room cold air control unit 21 (omitting diagram); The on/off of pressure fan 9 or the control of rotary speed in case; The control of the on/off of the outer pressure fan 53 (with reference to Fig. 3) of case or rotary speed etc.; And the control of the on/off of alarm (omitting diagram) of report door opening-wide state, the action of door opener 60 etc.

As shown in Figure 2, before the ceiling upper surface of refrigerator 1, namely, door opener 60 is provided with adjacently with door 2a, 2b.

Fig. 5 is the top view of the refrigerator observed from the B direction of Fig. 1.

As shown in Figure 5, door opener 60 possesses projecting part (PushRod) 61a, the 61b corresponding respectively with door 2a and door 2b.Projecting part 61a, 61b are with the mode action given prominence to towards door 2a, 2b from the state being contained in door opener 60, and the upper end of pressing refrigerating-chamber door 2a, 2b is neighbouring and press and open 2a, 2b.

In addition, door 2a is equivalent to " first " that record in claims, and door 2b is equivalent to " second " that record in claims.

This door opener 60 is described below in further detail.

In present embodiment, be provided with rotatable spacer 18 at the door 2a in left side.

This rotatable spacer 18 is that the rotatable spacer fulcrum 19 that can be set around a 2a freely rotates by axle supporting.When door 2a closes, rotatable spacer 18 and door 2a block the gap between the door 2b on a 2a and right side with existing abreast.

In addition, if user opens a 2a, then rotatable spacer 18 is because of the effect of not shown cam, turns to the position roughly orthogonal with door 2a around rotatable spacer fulcrum 19.Rotatable spacer 18 is not opened interferingly with door 2b.

Herein, for preferred angle when opening 2a, be described for door 2a.

Be represented by dotted lines in Fig. 5 when door opener 60 projecting part 61a with maximum overhang H2 act on left side door 2a time with maximum open angle θ _dmaxthe door 2a opened.

When projecting part 61a is set to Rda from the distance of hinge 17a, when the maximum overhang of projecting part 61a is set to H2, projecting part 61a maximum outstanding time the open angle θ of refrigerating-chamber door 2a _dmaxbecome θ _dmax=arctan (maximum overhang H2/ distance Rda), is determined from the distance of hinge 17a by the overhang of the projecting part 61a of door opener 60 and projecting part 61a.

Next, to this action open angle θ _dmaxpreferred angle be described.

First, the door closer as the closing unit being located at 2a, 2b is respectively described.

Refrigerator 1 possesses door closer, and this door closer, before cutting out 2a, 2b completely, by the direction force of cutting out door 2a, 2b, prevents so-called half to open the door.Following explanation, this door closer is configured to, and makes resinous plate spring component temporary deformity and put aside elastic deformation energy when door 2a, 2b close, and utilizes the energy of this savings to the direction force of closing door 2a, 2b.Above-mentioned door closer has identical structure except the shape becoming symmetrical at door 2a, 2b of left and right, thus only describes the door closer of the door 2a in left side herein in detail, omits the record of the door closer of the door 2b on right side.

Fig. 6 (a) to Fig. 6 (c) is the action specification figure of the door closer of refrigerator, is to represent that the figure of the situation of door is observed in the downside from refrigerator.

As shown in Fig. 6 (a) to Fig. 6 (c), door closer 37 is arranged on the bottom of the hinge 17a of a 2a.The door closer being fixed on refrigerator 1 is installed and bears accessory 38a, be provided with the cam part 38b formed by level and smooth curve form in its part.

The door closer elastomer 39a with the variant part 39b formed by resin elastomeric material is provided with at door 2a.

As shown in Fig. 6 (a), if door 2a around hinge 17a counterclockwise CCW rotate until angle ψ 1 and closing, then the variant part 39b of door closer elastomer 39a contacts with the cam part 38b that door closer bears accessory 38a.And the variant part 39b of door closer elastomer 39a is subject to the reaction force in arrow Fa direction and deformation occurs.

Clockwise, namely this power open the direction effect of a 2a relative to the hinge 17a of door 2a, thus user feels from midway, to become heavy from the reaction force of the door 2a gradually closed.

As shown in Fig. 6 (b), if door 2a closes and open angle becomes ψ 2, door closer elastomer 39a (is positioned at neutral point) with the contact of cam part 38b on the line that the hinge 17a with door 2a is identical, power Fb then between door closer elastomer 39a and cam part 38b is due to the side towards pivot point, thus moment becomes 0.Therefore, door 2a becomes balance and can not be subject to any one power of opening and closing.

And, before the contact of door closer elastomer 39a and cam part 38b arrives above-mentioned neutral point, door closer elastomer 39a deformation and put aside elastic deformation energy.

Then, as shown in Fig. 6 (c), if the contact of door closer elastomer 39a and cam part 38b exceedes neutral point and closes a 2a further, then the power in arrow Fc direction is applied from cam part 38b to door closer elastomer 39a.This power forms the moment in the direction (being counterclockwise CCW in this accompanying drawing) closing door 2a relative to the rotating fulcrum of door 2a, thus is exerted a force to closing direction opposite house 2a by this moment.

According to such door closer 37, when the open angle as neutral point is less than ψ 2, close door 2a.Therefore, door opener 60 is preferably utilized to open the angle θ of a 2a _d(θ larger than ψ 2 _d> ψ 2).That is, if open angle is θ _dthe relation of > ψ 2, then the door 2a utilizing door opener 60 to open can not be exerted a force to closing direction by door closer 37.And in the refrigerator 1 of present embodiment, if the open angle of door 2a is such as about ψ 2=10 °, then the open angle θ of a 2a opened by door opener 60 _dpreferably be set to 15 ° to about 20 °.In addition, if setting open angle θ _d(θ larger than ψ 1 _d> ψ 1), to make cam part 38b and variant part 39ba inoperative, then the door opening action that door opener 60 produces can more reliably carry out, thus is more preferably.In addition, the door 2b on right side is also identical with door 2a, the open angle θ that door opener 60 produces _dthan the angle (θ greatly that door closer 37 works _d> ψ 2, is preferably θ _d> ψ 1) better.

" door opener "

Next, in detail the door opener 60 of present embodiment is described.

Fig. 7 is the stereogram of the door opener of present embodiment.Fig. 8 is the top view of door opener.

With the front and back shown in Fig. 7, direction is for benchmark up and down in direction up and down in front and back in the explanation of following door opener 60, consistent up and down with the front and back of the refrigerator 1 (with reference to Fig. 2 and Fig. 3) being provided with this door opener 60.

As shown in Figure 7 and Figure 8, the door opener 60 of present embodiment is configured to, in the housing formed by the shell 62 as lower semi-body and the cover 69 as upper semi-body, mainly possess motor 82, reducing gear train 83, gear wheel 76, a pair intermittent driving gear (Intermittent Gear) 78a, 78b and a pair projecting part 61a, 61b.

And, as shown in Figure 7 and Figure 8, there is situation projecting part 61a, 61b not being called in shell 62 " original state (the Initial Status) " of door opener 60 towards the state protruding outside of this shell 62.In addition, the situation position of the reducing gear train 83 of the door opener 60 of " original state (Origin) ", gear wheel 76, intermittent driving gear 78a, 78b and projecting part 61a, 61b being called their " origin position " is had.

In addition, intermittent driving gear 78a is equivalent to " the first intermittent driving gear " recorded in claims, and intermittent driving gear 78b is equivalent to " the second intermittent driving gear " recorded in claims.Further, projecting part 61a is equivalent to " the first projecting part " recorded in claims, and projecting part 61b is equivalent to " the second projecting part " recorded in claims.

< motor >

Motor 82 is rotation motors, if its axial rotary just rotates against two directions, its kind is not particularly limited.As the motor 82 in present embodiment, for example, assuming that for there being brush direct current motor, by making the polarity inversion of the voltage putting on terminal, can rotate to forward direction and reverses direction both direction.

< reducing gear train >

Reducing gear train 83 makes the rotation of motor 82 slow down, and by its power transmission to gear wheel 76.

Reducing gear train 83 in present embodiment possesses worm screw 84, turbine 85, second gear 87, the third-largest gear 88a, third pinion 88b, the fourth-largest gear 90a and fourth pinion 90b.

Fig. 9 is the C-C sectional view of Fig. 8.

As shown in FIG. 8 and 9, worm screw 84 is arranged on the rotating shaft of motor 82, engages with the turbine 85 as the first gear.The second gear 87 as spur gear is set to one with turbine 85, and turbine 85 and the second gear 87 are all supported as can rotate freely around turbine wheel shaft 86 by axle.

Second gear 87 engages with the third-largest gear 88a (with reference to Fig. 8), and this third-largest gear 88a and third pinion 88b (with reference to Fig. 8) is supported as rotating freely around the 3rd fulcrum 89 (with reference to Fig. 8) by axle integratedly.In addition, third pinion 88b (with reference to Fig. 8) engages with the fourth-largest gear 90a.This fourth-largest gear 90a and fourth pinion 90b is supported as can rotate freely around the 4th fulcrum 91 by axle integratedly.In addition, fourth pinion 90b engages with tooth 76A, 76B described later (with reference to Figure 10) of gear wheel 76.

That is, as mentioned above, reducing gear train 83 is configured to make the revolving force of motor 82 to slow down, and is passed to gear wheel 76.

The arrow of Fig. 8 represents when making motor 82 rotate, an example of the direction of rotation of each gear.

For the direction of rotation of worm screw 84, as an example, represent in Fig. 8 overlook situation under, represent the spiral helicine tooth making to be located at worm screw 84 and the turbine 85 engaged with it direction to left-handed rotation by solid arrow.Such as when the tooth of worm screw 84 is spirals of the left hand thread contrary with general screw thread, when observing from the front of worm screw 84, if make motor 82 turn clockwise, in the present embodiment, such direction of rotation is called " forward direction ".

Being represented situation about rotating round about by making the polarity of the voltage putting on motor 82 make worm screw 84 on the contrary by dotted arrow, in the present embodiment, such direction of rotation being called " reverses direction ".

Certainly, being called " rotating forward (normal) " " reversing (reverse) " is in order to description of the present embodiment convenience, is not limited to such manifestation mode.

As shown in Figure 8, such reducing gear train 83 than gear wheel 76 near the back side (near rear), and near the left and right central authorities being configured in shell 62.In addition, motor 82 and reducing gear train 83 configure along the back side (below) of shell 62 adjacently.In addition, in the opposite side of the motor 82 relative to reducing gear train 83, be provided with the wiring space 81 for not shown wiring connectors, wiring configuration.That is, motor 82, reducing gear train 83 and wiring space 81 become along the back side (below) of shell 62 structure arranged side by side.

In addition, represent in Fig. 8 overlook situation under, the motor 82 in present embodiment is configured at relative to reducing gear train 83 side that keeps left, but the present invention is not limited to such configuration, also can keep right side or by central authorities configuration.

< gear wheel >

Figure 10 represents the gear wheel of door opener and the stereogram of intermittent driving gear.

As shown in Figure 10, in the scope of the angle θ 0 of the periphery of gear wheel 76, the whole width of thickness direction establishes cogged tooth 76A.Outside the scope of angle θ 0, through-thickness and only close to shell 62 side, namely diagram below roughly 1/2 scope, be provided with tooth 76B a series of with tooth 76A continuous print throughout complete cycle.And roughly 1/2 scope does not arrange tooth above diagram, be provided with the sliding surface 76C of identical with circle at the bottom of the tooth of tooth 76B or less than circle at the bottom of tooth cylindrical shape.On the border of sliding surface 76C with the tooth 76A arranged along whole width, be provided with the notch 76D more recessed to inner circumferential side than sliding surface 76C.

In the opposite side of the tooth 76A of gear wheel 76, be provided with gear wheel block 76E.If gear wheel 76 is from above-mentioned origin position anglec of rotation θ 6, then gear wheel block 76E anglec of rotation θ 6 and abutting with cover block 71 together with gear wheel 76.

And as shown in Figure 9, cover block 71 is the sections being formed as giving prominence to the inside from cover 69 towards gear wheel 76.

By this cover block 71 as electromechanical stop, the rotation angle range of gear wheel 76 is restricted to from origin position to ± θ 6.

< intermittent driving gear >

Figure 11 is the D-D sectional view of Fig. 8.

As shown in figs.10 and 11, intermittent driving gear 78a (the first intermittent driving gear) is by axle supporting for freely can rotate around swivel plate center 74a, and intermittent driving gear 78b (the second intermittent driving gear) is supported as freely can rotate around swivel plate center 74b by axle.

Around intermittent driving gear 78a, 78b, be formed with stopper portions 80a, 80b (with reference to Figure 10) that tooth 79a, 79b (with reference to Figure 10) of engaging with the tooth 76A of gear wheel 76 (with reference to Figure 10) and a part are given prominence to outer peripheral side.When with this stopper portions 80a, 80b close to gear wheel 76 after configuration intermittent driving gear 78a, 78b, gear wheel 76 and intermittent driving gear 78a, 78b be not as gears meshing, and stopper portions 80a, 80b become and can be free to slide on the sliding surface 76C of gear wheel 76 (with reference to Figure 10).

In addition, the front end face of stopper portions 80a, 80b becomes the concave surface of the arc-shaped consistent with the side face of sliding surface 76C.That is, the front end face (concave surface) of stopper portions 80a, 80b and the side face of sliding surface 76C are fitted together to mutually, even if intermittent driving gear 78a, the 78b of movement on the side face of sliding surface 76C are for rotating the state and non rotating that also become locking.

Even if gear wheel 76 rotates in this condition, the stopper portions 80a of intermittent driving gear 78a, 78b, the front end face (concave surface) of 80b also only slide on the sliding surface 76C of gear wheel 76, thus intermittent driving gear 78a, 78b non rotating.

As shown in Figure 10, herein, the situation of scope balanced configuration intermittent driving gear 78a, the 78b of the angle θ 0 relative to gear wheel 76 is called " origin position " of gear wheel 76.At this " origin position ", be set to θ 2 by from the notch 76D to stopper portions 80a, the 80b that are located at gear wheel 76 close to the end of the side of notch 76D that is the angle of block end 80Aa, 80Ab.

Like this, when gear wheel 76 from " origin position " respectively with the scope of angle θ 2 to clockwise or when being rotated counterclockwise, intermittent driving gear 78a, 78b are not driven in rotation and keep the state that locks.

If from the anglec of rotation of the origin position of gear wheel 76 more than θ 2, then block end 80A enters the inner side of the notch 76D more recessed than sliding surface 76C, thus intermittent driving gear 78a, 78b become and can rotate.The tooth 76A of gear wheel 76 and tooth 79a, 79b of intermittent driving gear 78a, 78b engages successively thus.And gear wheel 76 to intermittent driving gear 78a, 78b transmitting torque, and drives intermittent driving gear 78a, 78b to make them rotate.

In addition, the scope of angle θ 0 that the tooth 76A of gear wheel 76 engages with tooth 79a, 79b of intermittent driving gear 78a, 78b is equivalent to " the first angular range " and " the second angular range " recorded in claims.That is, intermittent driving gear 78a only engages with gear wheel 76 at " the first angular range " and rotates (rotation), does not engage and non rotating (rotation) beyond " the first angular range " with gear wheel 76.Further, intermittent driving gear 78b only engages with gear wheel 76 at " the second angular range " and rotates (rotation), does not engage and non rotating (rotation) beyond " the second angular range " with gear wheel 76.

And as following, the direction of rotation corresponding to gear wheel 76 is clockwise or counterclockwise, the driving force from motor 82 is transmitted to any one in intermittent driving gear 78a, 78b.

< swivel plate and web >

As shown in Fig. 8 and Figure 11, door opener 60 possesses a pair swivel plate (Rotation Plate) 73a, 73b and a pair web (Connecting Plate) 65a, 65b of the driving force from intermittent driving gear 78a, 78b being passed to projecting part 61a, 61b.

Swivel plate 73a and intermittent driving gear 78a is supported as can rotate freely around swivel plate center 74a by axle integratedly, and swivel plate 73b and intermittent driving gear 78b is supported as can rotate freely around swivel plate center 74b by axle integratedly.

As shown in Fig. 8 and Figure 11, these swivel plates 73a, 73b and web 65a, 65b are except having identical structure becoming in door opener 60 except symmetrical shape, thus only describe swivel plate 73a and the web 65a in left side herein in detail, omit the swivel plate 73b on right side and the record of web 65b.

Figure 12 represents the swivel plate of door opener and the top view of web.

As shown in figure 12, around swivel plate 73a, be formed with the tooth 102a ~ 102q (adding up to the number of teeth to be 14) engaged with the tooth 101A ~ 101P of web 65a (adding up to the number of teeth to be 13).

Tooth 102a ~ the 102q of swivel plate 73a is formed as, in the situation of overlooking of Figure 12 centered by the 74a of swivel plate center to dextrorotation, and radius little by little expands from this swivel plate center 74a.

More specifically, when the engagement spacing radius of circle from the tooth 102a to tooth 102q being located at swivel plate 73a being set to the ra to rq shown in Figure 12, (a to q is alphabetically arranged side by side, the diagram of rb to rp is omitted) in figure, meet the relational expression of ra < rb < rc < rd < re < rf < rg < rh < rj < rk < rm < rn < rp < rq.

In addition, the curve that the denture of the tooth 102a ~ 102q of swivel plate 73a is described can be Archimedian screw (Archimedean Spiral), hyperbolic spiral (Hyperbolic Curve), involute (Involute Curve) etc., if but meet above-mentioned relation formula, be then not limited to above-mentioned line.

As shown in Figure 7 and Figure 8, web 65a is configured at the left side (outside the left and right directions of shell 62) of swivel plate 73a.

In addition, web 65a is formed as roughly triangular shape, can the recess mutually slidably chimeric with guide rail 66a or protuberance possessing of the left surface as the first limit.In addition, in the front face side as Second Edge, be bonded to the rearward end of projecting part 61a.In addition, on remaining 3rd limit, be formed with the tooth 101A ~ 101P (with reference to Figure 12) engaged with its tooth 102a ~ 102q (with reference to Figure 12) when swivel plate 73a rotates.Namely, as shown in figure 12, tooth 102a ~ 102q due to swivel plate 73a is formed as radius and little by little expands from swivel plate center 74a, so the denture of the tooth 101A ~ 101P of web 65a is along with from front towards rear, become the taper tilted in the mode in the left side (outside the left and right directions of shell 62) towards swivel plate 73a.

Because tooth 102a ~ 102q of being located at swivel plate 73a is to clip the front of tooth 101A ~ 101P of being located at web 65a and the mode at rear engages, so many one of the number of teeth of the gear ratio web 65a of swivel plate 73a, as mentioned above, the number of teeth of swivel plate 73a is 14, and the number of teeth of web 65a is 13.

In addition, the number of teeth of swivel plate 73a and the number of teeth of web 65a are not limited to above-mentioned 14 and 13, but preferably arrange one than the number of teeth of the web 65a as slave end as the number of teeth of the swivel plate 73a of driving side more.Like this, by setting the number of teeth of swivel plate 73a and web 65a, thus the tooth of swivel plate 73a always clip the tooth of web 65a from both sides engages.Thus, swivel plate 73a clockwise and the spinning movement counting this both direction inverse time become stable, and become and carry out efficiently from swivel plate 73a to web 65a transmission of drive force.

Be rotated counterclockwise in the situation of overlooking of swivel plate 73a in present embodiment when door 2a (with reference to Fig. 5) opens wide and at Figure 12.

As shown in figure 12, between the tooth 102a and tooth 102b of the inner circumferential side of swivel plate 73a, the tooth 101A of the front of web 65a is engaged with.Under the state of the swivel plate 73a shown in this Figure 12 and web 65a, as following, because projecting part 61a becomes the state of the shell 62 being imported into door opener 60, so the position of the swivel plate 73a shown in Figure 12 and web 65a becomes above-mentioned " origin position ".

< projecting part >

As shown in Figure 7 and Figure 8, projecting part 61a, 61b are the elongated bars such as with the polygonal cross-section such as quadrangle or circular section, and to configure along the mode on the left side in the above-mentioned housing formed by the cover 69 of upper semi-body and the shell 62 of lower semi-body and right side respectively.

Projecting part 61a, 61b are along the mode of the fore-and-aft direction movement of door opener 60, can be supported on guide rail 66a, 66b slidably via web 65a, 65b.

In addition, the front end of projecting part 61a, 61b is relative with the outside of housing via opening 63a, 63b of being located at before housing (with reference to Fig. 8) in the mode across shell 62 and cover 69.

Projecting part 61a, 61b are configured to after door 2a, 2b give prominence to, returning original position respectively, are described in detail to below this.

In addition, at projecting part 61a, 61b, to be provided with strengthening part 68a, 68b of being such as made up of the pole of stainless steel along the mode of its long side direction, projecting part 61a, 61b are strengthened by this strengthening part 68a, 68b.

Front end component 64a, 64b is provided with in the front end of above-mentioned projecting part 61a, 61b.In addition, because front end component 64a and front end component 64b has identical structure, so only front end component 64a is described herein, and the explanation of front end component 64b is omitted.

Figure 13 is the E-E sectional view of Fig. 9.

As shown in figure 13, front end component 64a is configured to, to via being formed at the opening 63a before above-mentioned housing, the front end towards the projecting part 61a in the outside of housing covers.

Front end component 64a is preferably formed by the material of the softness of such as rubber and so on.In addition, in the side of the projecting part 61a of front end component 64a, the complete cycle throughout projecting part 61a is provided with the thinner wall section 70 expanded in the mode of the outer side covers opening 63a from housing.If the size of the side of the projecting part 61a of this thinner wall section 70 is larger than the size of opening 63a, then when being imported after in housing by projecting part 61a, thinner wall section 70 blocks opening 63a, and can anti-sealing, dust enter in housing from outside.In addition, front end component 64a can reduce impact when projecting part 61a carries out outstanding action and abuts with door 2a.

In addition, as shown in Figure 8, at door opener 60, the main body installing hole 59 of the upper surface for door opener 60 being installed on refrigerator 1 (with reference to Fig. 1) is provided with.This main body installing hole 59 is arranged on as upper/lower positions: two positions in the rear bight of shell 62; And in the left and right sides of gear wheel 76 and than the forward side of gear wheel central shaft 77 and with the front-end edge of swivel plate center 74a, 74b and shell 62 of being positioned at swivel plate 73a roughly in the middle of symmetrical two positions of mode.

Figure 14 is the D-D section of Fig. 8.

As the method via main body installing hole 59, door opener 60 being installed on refrigerator 1, following method can be enumerated, namely, as shown in figure 14, clamp shell 62 and cover 69 via rubber bushing 58, use screw element 56 with the level and be anchored on the boss 57 of the cylindrical shape of giving prominence to from the upper surface of refrigerator 1.If door opener 60 is installed on refrigerator 1 by such method, even if then when the driving of door opener 60 just in case produce vibration, this vibration passing also can be prevented to refrigerator 1.

< switch lever and sense switch >

Figure 15 (a) is the stereogram of the sense switch operating member possessing switch lever and the sense switch engaged with gear wheel, be represent the stereogram upwards observing the situation of gear wheel from oblique below, Figure 15 (b) is the exploded perspective view of sense switch operating member.Figure 16 is the cam part of door opener and the configuration instruction figure of switch lever.In addition, the state of the switch lever of the gear wheel of origin position is represented in Figure 15 (a) and Figure 16.

As shown in Figure 15 (a) and (b), sense switch operating member be configured to mainly to possess engage with the cam part 99 of gear wheel 76 switch lever 96a, 96b, detection springs 97, sense switch 95a, 95b.

Switch lever 96a, 96b are formed by a pair rod unit of symmetrical shape, are formed with axle support 98,98 respectively in the substantially central portion of long side direction.And axle support 98,98 is by general spindle unit (omitting diagram) supporting, thus switch lever 96a, 96b can separately freely rotate around this spindle unit each other.

As shown in Figure 15 (b), in the end side of the long side direction of switch lever 96a, 96b, and spring projection 96Ba, 96Bb (in Figure 15 (b), the spring projection 96Bb of not shown switch lever 96b side) is formed in switch lever 96a, 96b face toward each other.Between above-mentioned spring projection 96Ba, 96Bb, erection has the detection springs 97 as Compress Spring.

In addition, in the end side of switch lever 96a, 96b, and in the face of the side contrary with the side of formation spring projection 96Ba, 96Bb, be formed with switch projection 96Aa, 96Ab (in Figure 15 (b), the switch projection 96Aa of not shown switch lever 96a side).

At this switch projection 96Aa, 96Ab, be respectively equipped with sense switch 95a and sense switch 95b in opposed mode.This sense switch 95a, 95b are such as made up of touch-switch.That is, if the switch projection 96Ab of switch lever 96a contacts with sense switch 95a, switch connection, if the two is separated, switch disconnects.In addition, if the switch projection 96Ab of switch lever 96b contacts with sense switch 95b, then switch connection, if the two is separated, switch disconnects.

In addition, in another side of the long side direction of switch lever 96a, 96b, and be formed with switch lever leading section 96Ca, 96Cb in switch lever 96a, 96b face toward each other.This switch lever leading section 96Ca, 96Cb, owing to being configured at the screen resilience of the detection springs 97 of the end side of switch lever 96a, 96b, clamp the cam part 99 (with reference to Figure 15 (a)) of the gear wheel 76 (with reference to Figure 15 (a)) of following explanation.

As shown in Figure 15 (a), at the lower surface of gear wheel 76, be formed with cam part 99 coaxially with gear wheel 76 (gear wheel central shaft 77).This cam part 99 is the parts having two different side faces of mutual diameter and have the roughly disc-shape of thickness, has the first large side face 99a of diameter and the diameter second side face 99b less than the diameter of this first side face 99a.

And if cam part 99 rotates together with gear wheel 76, then switch lever leading section 96Ca, 96Cb and this first side face 99a and the second side face 99b slidingly contact.

That is, if switch lever leading section 96Ca and the first side face 99a slidingly contacts, then the switch projection 96Ab of switch lever 96a leaves and switch disconnection from sense switch 95a.In addition, if switch lever leading section 96Ca and the second side face 99b slidingly contacts, then the switch projection 96Ab of switch lever 96a contacts and switch connection with sense switch 95a.

And if switch lever leading section 96Cb and the first side face 99a slidingly contacts, then the switch projection 96Ab of switch lever 96b leaves and switch disconnection from sense switch 95b.In addition, if switch lever leading section 96Cb and the second side face 99b slidingly contacts, then the switch projection 96Ab of switch lever 96b contacts and switch connection with sense switch 95b.

That is, the first side face 99a of cam part 99 forms cleaved facet, and the second side face 99b forms connection face.

Origin position shown in Figure 15 (a), switch lever leading section 96Ca, 96Cb all connect with the first side face 99a (cleaved facet), switch lever 96a, 96b are the states to the direction movement shown in solid arrow, switch projection 96Aa, 96Ab pressing detection spring 97 make it to shrink and to the direction displacement left from sense switch 95a, 95b, thus sense switch 95a, 95b both sides all disconnect.

If gear wheel 76 rotates from origin position, and switch lever leading section 96Ca, 96Cb are mobile to the second side face 99b (connection face) from the first side face 99a (cleaved facet), then switch lever 96a, 96b moves to the direction shown in dotted arrow due to the reaction force of detection springs 97, thus switch projection 96Aa, 96Ab pressing detection switch 95a, 95b and sense switch 95a, 95b are all connected.

In present embodiment, the effect can connected by means of only a detection springs 97 realizes switch lever 96a, 96b of two formulas to be pushed on each sense switch 95a, 95b.

That is, if make gear wheel 76 rotate, then cam part 99 rotates, thus switch lever 96a, 96b rotate, corresponding with the anglec of rotation of gear wheel 76, and sense switch 95a, 95b can be made to turn on/off.

Next, an example of the anglec of rotation of gear wheel 76, the suitable shape of the shape of cam part 99 and the suitable on/off of sense switch 95a, 95b is described.Figure 16 is the cam part of door opener and the configuration instruction figure of switch lever.In addition, Tu16Zhong, for convenience of description, to the axle support of switch lever 96a, 96b label symbol 98a and symbol 98b and separately describing respectively.

As shown in figure 16, cam part 99 is in the angle centered by gear wheel central shaft 77 scope in there is the first larger side face 99a (cleaved facet) of diameter, there is the second side face 99b (connection face) that diameter is less in scope in addition.

In addition, switch lever leading section 96Ca, 96Cb (with reference to Fig. 5 (a)) of origin position are by angled centered by gear wheel central shaft 77 2 and connect with the first side face 99a (cleaved facet) of cam part 99.

First side face 99a of cam part 99 is formed at until from the contact with switch lever leading section 96Ca, 96Cb to angle the scope of outside angle θ 1, " origin position " shown in Figure 16 is symmetrical, thus relational expression set up.

Namely, if gear wheel 76 is from " origin position " dextrorotation gyration θ 1 shown in Figure 16, then switch lever leading section 96Cb is mobile to the second side face 99b (connection face) from the first side face 99a (cleaved facet), thus sense switch 95b switches to connection from disconnection.

If gear wheel 76 is dextrorotation gyration further and become from the anglec of rotation of " origin position " then sense switch 95b remains open constant, and switch lever leading section 96Ca is mobile to the second side face 99b (connection face) from the first side face 99a (cleaved facet).That is, sense switch 95a switches to connection from disconnection.

On the other hand, if gear wheel 76 is from " origin position " rotated counterclockwise by angle θ 1, then switch lever leading section 96Ca is mobile to the second side face 99b (connection face) from the first side face 99a (cleaved facet).That is, sense switch 95a switches to connection from disconnection.

If gear wheel 76 is rotated counterclockwise by angle further and become from the anglec of rotation of " origin position " then sense switch 95a remains open constant, and switch lever leading section 96Cb is mobile to the second side face 99b (connection face) from the first side face 99a (cleaved facet).Namely sense switch 95b switches to connection from disconnection.

Herein, the rotational angle from " origin position " of gear wheel 76 or cam part 99 be ± scope of θ 1 in, sense switch 95a, 95b all disconnect, and the scope of this angle ± θ 1 are called " initial point scope ".

Next, the position relationship of gear wheel 76, intermittent driving gear 78a, 78b, cam part 99, switch lever 96a, 96b is described.

Figure 17 (a) to Figure 17 (f) is the top view of position relationship schematically showing the gear wheel of door opener, intermittent driving gear, switch lever.In addition, represent in Figure 17 (a) to Figure 17 (f) and make gear wheel 76 dextrorotation then drive the intermittent driving gear 78a in left side to make it to rotate, make the projecting part 61a in left side give prominence to and carry out the action of the door opening action of the door 2a in left side.In addition, Figure 17 (a) in Figure 17 (f), the tooth 76A of part of the sliding surface 76C, the notch 76D that only represent gear wheel 76 and the driving relating to intermittent driving gear 78.

Represent the state of " origin position " in Figure 17 (a), intermittent driving gear 78a, 78b are in front end and the state that lock chimeric with sliding surface 76C of respective stopper portions 80a, 80b.In addition, switch lever leading section 96Ca, 96Cb connect with the first side face 99a (cleaved facet) of cam part 99, and sense switch 95a, 95b all disconnect (following, to have the situation this state being called " sense switch A/B=disconnects/disconnects ").

Represent that gear wheel 76 is from " moving outside initial point (Outside the ofOrigin) " state after " origin position (Origin) " dextrorotation gyration θ 1 in Figure 17 (b), intermittent driving gear 78a, 78b are in front end and the state that lock chimeric with sliding surface 76C of stopper portions 80a, 80b.In addition, switch lever leading section 96Ca connects with the first side face 99a (cleaved facet) of cam part 99, thus sense switch 95a disconnects.In addition, switch lever leading section 96Cb is mobile to the second side face 99b (connection face) from the first side face 99a (cleaved facet) of cam part 99, thus sense switch 95b switches to connection from disconnection.That is, the boundary portion of the positional representation " initial point scope " of Figure 17 (b).Herein, notch 76Da moves to the position (following, to have the situation this state being called " sense switch A/B=disconnects/connects ") of the block end 80Aa of the stopper portions 80a close to intermittent driving gear 78a.

Represent in Figure 17 (c) that gear wheel 76 is further rotated to the state of angle θ 2 (> θ 1).Namely, the stopper portions 80a of intermittent driving gear 78a enters notch 76Da to the state of unlocking, and gear wheel 76 becomes the state (" intermittent gear engages (Intermittent Geardriven) " state) that can engage with intermittent driving gear 78a.Intermittent driving gear 78a starts to rotate counterclockwise thus.Now, switch lever 96a, 96b do not change from the state of Figure 17 (b), and sense switch 95a remains open, and sense switch 95b keeps connecting (sense switch A/B=disconnects/connects).

Represent in Figure 17 (d) that gear wheel 76 turns to the state of angle θ 3 (> θ 2) further, intermittent driving gear 78a engages with gear wheel 76 and continues to rotate counterclockwise.In addition, owing to also rotating with the swivel plate 73a of intermittent driving gear 78a one, so projecting part 61a via web 65a forwards outstanding (" in outstanding action (Pushing) ").Projecting part 61a carries out door opening action thus.Switch lever 96a, 96b do not change from the state of Figure 17 (b) or Figure 17 (c), and sense switch 95a remains open, and sense switch 95b keeps connecting (sense switch A/B=disconnects/connects).

Represent in Figure 17 (e) that gear wheel 76 turns to the state of angle θ 4 (> θ 3) further, projecting part 61a projects to the near maximum value (" giving prominence to before closing to an end (Pushingnearly completed) " state) close to its actuating range.Intermittent driving gear 78a is positioned at and roughly rotates maximum position.Switch lever leading section 96Ca is mobile to the second side face 99b (connection face) from the first side face 99a (cleaved facet) of cam part 99, thus sense switch 95a switches to connection from disconnection.Sense switch 95b does not change and keeps connecting.The situation of connection is switched to detect (following, to have the situation this state being called " sense switch A/B=connects/connect-Tong ") sense switch 95a from disconnection.Now, if stop the energising to motor 82, then motor 82 slows down and stops.

Represent in Figure 17 (f) that gear wheel 76 is further rotated to the state of angle θ 5 (> θ 4), motor 82 stops, and projecting part 61a terminates outstanding action and stops (" outstanding end stops " state).Gear wheel 76 and intermittent driving gear 78a are positioned at and rotate maximum position.Switch lever 96a, 96b do not change from the state of Figure 17 (e), and sense switch 95a, 95b all keep connecting (sense switch A/B=connects/connects).

Afterwards, door opener 60 makes motor 82 reverse and gear wheel 76 is rotated counterclockwise, thus carries out the action from Figure 17 (f) to Figure 17 (a) contrary to the abovely, and again returns " origin position ".

And, when carrying out the door opening action of door 2b on right side, gear wheel 76 is rotated to the counter clockwise direction contrary with the direction of rotation of Figure 17 (a) to Figure 17 (f) from " origin position ".Thus, intermittent driving gear 78b and switch lever 96a, 96b carry out symmetrical (mirror image) action with Figure 17 (a) to Figure 17 (f).That is, intermittent driving gear 78b dextrorotation then carry out the outstanding action of projecting part 61b on right side, thus carry out the door opening action of the door 2b on right side.

Next, more specifically to carry out the door opening action of door 2a in left side, the door 2b on right side door opening action time, the spinning movement of cam part 99 and the ON/OFF state of sense switch 95a, 95b be described.

The figure of when Figure 18 is the left side door opening action that door opener is described, the spinning movement of cam part and the ON/OFF state of sense switch.The figure of when Figure 19 is the right side door opening action that door opener is described, the spinning movement of cam part and the ON/OFF state of sense switch.In addition, in Figure 18 and Figure 19, the spinning movement of the cam part 99 of gear wheel 76 is showed equivalently to be transformed to transverse axis be the linearly operating of angle, and be illustrated as the protuberance of the rectangle that cam part 99 is moved left and right.

The rotation depicted in Figure 18 to the diagram movement of left and the clockwise direction (CW direction) of gear wheel 76 or cam part 99 is of equal value, and the rotation to the movement with counter clockwise direction (CCW direction) that illustrate right is of equal value.

In addition, in Figure 19, the counterclockwise spinning movement of the cam part 99 in the door opening action represented in Figure 17 (a) to Figure 17 (f) and symmetrical door opening action (door opening action of the door 2b on right side) is depicted as the shift action from " origin position " to diagram right.

In addition, each state represented by (a) to (f) of Figure 18 and each state represented by (a) to (f) of Figure 19 corresponding to each state in Figure 17 (f) with Figure 17 (a).

The state of the state of (a) of Figure 18 and (a) of Figure 19 is all identical states, represents " origin position ".The gear wheel 76 i.e. angle of rotation θ of cam part 99 is 0 (θ=0), and cam part 99 is in relative to center line (central authorities) symmetrical position.The width of cam part 99 is the angles with Figure 16 corresponding width, sense switch 95a, 95b are with the angle with Figure 16 corresponding width configuration.In addition, at " origin position ", sense switch 95a, 95b are configuring relative to center line (central authorities) symmetrical position identically with cam part 99.In addition, the θ 1 of Figure 16 and the θ 1 of Figure 18 and Figure 19 is corresponding.

Next, be described with reference to the door opening action (L.H.flapped door action) of Figure 18 to the door 2a in left side.

On " (a) origin position " hurdle of Figure 18, sense switch 95a, 95b (being recited as in Figure 18 is detected A, detected B) are all scopes that corresponding switch lever leading section 96Ca, 96Cb is in the protuberance (the first side face 99a (cleaved facet)) of cam part 99.That is, as mentioned above, sense switch 95a, 95b, on the protuberance (the first side face 99a (cleaved facet)) of cam part 99, are all off-states, and this is represented (detecting A/B=to disconnect/disconnect) by black circles.

On " moving outside (b) initial point " hurdle of Figure 18, represent cam part 99 (CW direction) rotational angle θ 1 and the state offset to " initial point scope " clockwise accordingly outward with Figure 17 (b).On " moving outside (b) initial point " hurdle of Figure 18, be change in location from from black circles to white circle by sense switch 95b (detect B) from disconnecting the state representation being changed to connection.

Sense switch 95b (detecting B) is changed to connection from disconnection, thus can confirm that gear wheel 76 departs from and turn clockwise (detecting A/B=to disconnect/connect) from " initial point scope ".

On " in (d) outstanding action " hurdle of " engagement of (c) intermittent gear " hurdle of Figure 18 and Figure 18, identical with the state shown in Figure 17 (c) and Figure 17 (d) respectively, represent that cam part 99 continues (CW direction) clockwise from angle θ 2 respectively and rotates the situation to θ 3.That is, intermittent driving gear 78a and gear wheel 76 rotate engagingly, and projecting part 61a carries out outstanding action.And projecting part 61a makes the door 2a in left side open wide, the state (detecting A/B=to disconnect/connect) that sense switch 95a, 95b remain open/connect.

On " (e) outstanding close to an end before " hurdle of Figure 18, identical with Figure 17 (e), represent gear wheel 76 further clockwise (CW direction) turn to angle θ 4 (> θ 3) and state before the outstanding action that closes to an end, door opening action terminates substantially.Because sense switch 95a becomes connection from disconnection, so cut-out makes it the energising of motor 82 to stop.Sense switch 95a, 95b connect/connect (detecting A/B=to connect/connect).

On " (f) outstanding end stops " hurdle of Figure 18, identical with Figure 17 (f), expression gear wheel 76 further clockwise (CW direction) rotates the state stopped to maximum actuation angle that is angle θ 5 (> θ 4).Become the state that motor 82 stops, giving prominence to release.Sense switch 95a, 95b keep the state (detecting A/B=to connect/connect) connected/connect.Maximum actuation angle θ 5 is set to less than the rotation angle range θ 6 of the gear wheel 76 set by the electromechanical stop based on gear wheel block 76E and cover block 71 (θ 5 < θ 6).

Next, the door opening action of Figure 19 to the door 2b on right side is used to be described.

On " (a) origin position " hurdle of Figure 19, sense switch 95a, 95b are all protuberance (the first side face 99a (cleaved facet)) scopes that corresponding switch lever leading section 96Ca, 96Cb is in cam part 99.That is, as mentioned above, due to cam part 99, switch lever 96a, 96b by the protuberance of cam part 99 pressing and displacement thus disconnect.That is, as mentioned above, sense switch 95a, 95b, on the protuberance (the first side face 99a (cleaved facet)) of cam part 99, are all off-states, and this is represented (detecting A/B=to disconnect/disconnect) by black circles.

On " moving outside (b) initial point " hurdle of Figure 19, symmetrically represent cam part 99 (CCW direction) rotational angle θ 1 and the state offset to " initial point scope " counterclockwise outward with Figure 17 (b).On " moving outside (b) initial point " hurdle of Figure 18, sense switch 95a (detect A) is expressed as change in location from from black circles to white circle from disconnecting the situation being changed to connection.

Sense switch 95a is changed to connection from disconnection, thus can confirm that gear wheel 76 departs from and (CCW direction) rotation counterclockwise (detecting A/B=on/off) from " initial point scope ".

In " engagement of (c) intermittent gear " hurdle of Figure 19 and Figure 19 " in (d) outstanding action ", hurdle, represent symmetrically with the state left-right shown in Figure 17 (c) and Figure 17 (d) respectively cam part 99 respectively from angle θ 2 counterclockwise (CCW direction) continue to rotate the situation to θ 3.That is, intermittent driving gear 78b and gear wheel 76 rotate engagingly, and projecting part 61b carries out outstanding action.And projecting part 61b makes the door 2b on right side open wide, sense switch 95a, 95b keep the state of on/off (detecting A/B=on/off).

On " (e) outstanding close to an end before " hurdle of Figure 19, with the state left-right shown in Figure 17 (e) represent symmetrically gear wheel 76 further counterclockwise (CCW direction) turn to angle θ 4 (> θ 3) and the state that is about to before outstanding action, door opening action terminates substantially.Because sense switch 95a becomes connection from disconnection, so cut-out makes it the energising of motor 82 to stop.Sense switch 95a, 95b connect/connect (detecting A/B=to connect/connect).

On " (f) outstanding terminate stop " hurdle of Figure 19, with the state left-right shown in Figure 17 (f) represent symmetrically gear wheel 76 further counterclockwise (CCW direction) turn to maximum actuation angle that is angle θ 5 (> θ 4) and the state that stops.Become the state that motor 82 stops, giving prominence to release.Sense switch 95a, 95b keep the state (detecting A/B=to connect/connect) connected/connect.

Maximum actuation angle θ 5 is set to the rotation angle range θ 6 little (θ 5 < θ 6) than the gear wheel 76 being kept off centre setting by the machinery based on gear wheel block 76E and cover block 71.

Next, the relation of the ON/OFF state of the door opening action that the action of the gear wheel 76 and cam part 99 illustrated by Figure 18 and Figure 19 is produced and sense switch 95a, 95b is briefly represented in Figure 20.The figure of the ON/OFF state of sense switch when Figure 20 is left side door opening action and the right side door opening action that door opener is described.

On (1) hurdle of Figure 20, represent the state identical with the state on " (f) is outstanding to be terminated to stop " hurdle of " (e) outstanding the close to an end before " hurdle of the Figure 18 in the door opening action of the door 2a in left side and Figure 18, sense switch 95a, 95b (detection A/B) connection/connection.

On (2) hurdle of Figure 20, the state that expression is identical with the state represented in " in (d) outstanding action " hurdle of " moving outside (b) initial point " hurdle of Figure 18, " (c) intermittent gear engages " hurdle of Figure 18 and Figure 18, sense switch 95a, 95b (detecting A/B) disconnect/connect.

On (3) hurdle of Figure 20, represent the state identical with the state represented in " (a) origin position " hurdle of Figure 18 and " (a) origin position " hurdle of Figure 19, sense switch 95a, 95b (detecting A/B) disconnect/disconnect.

Herein, if sense switch 95a, 95b disconnect/disconnect, then gear wheel 76 and cam part 99 are in the scope of angle ± θ 1, any one intermittent driving gear of gear wheel 76 and left and right 78a, 78b all do not engage, thus can confirm left and right projecting part 61a, 61b any one be all in the position be imported into.Therefore, if sense switch 95a, 95b all disconnect/disconnect, then can confirm that door opener 60 is in " initial point scope ".

On (4) hurdle of Figure 20, the state that expression is identical with the state represented in " in (d) outstanding action " hurdle of " moving outside (b) initial point " hurdle of Figure 19, " (c) intermittent gear engages " hurdle of Figure 19 and Figure 19, sense switch 95a, 95b (detecting A/B) on/off.

On (5) hurdle of Figure 20, represent the state that the state that represents in " (e) outstanding the close to an end before " hurdle with Figure 19 is identical, sense switch 95a, 95b (detecting A/B) connect/connection.

And, as shown in (1) hurdle of Figure 20 and (5) hurdle of Figure 20, if sense switch 95a, 95b (detecting A/B) connect/connect, then can confirm that the door opening action of door opener 60 terminates, in projecting part 61a or projecting part 61b, any one is in outstanding maximum rating.

Next, to the door opener 60 of present embodiment open left side door 2a time action be described.

In the door opener 60 (with reference to Figure 17 (a)) of " origin position ", as shown in Figure 8, gear wheel 76 does not engage with any one intermittent driving gear 78a, 78b, and projecting part 61a, 61b of left and right do not give prominence to.Sense switch 95a, 95b (detecting A/B)) disconnect/disconnect (with reference to Figure 18 (a)).

Figure 21 to Figure 25 is the top view of the outstanding action of projecting part for illustration of left side.

As shown in figure 21, if motor 82 drives to forward direction further from the state (with reference to Figure 17 (a)) of above-mentioned " origin position " (θ=0), and gear wheel 76 and cam part 99 rotation make to become angle θ 1 (with reference to Figure 17 (b)) clockwise from " origin position ", then the notch 76Da of gear wheel 76 becomes the state of the stopper portions 80a close to intermittent driving gear 78a.Under this state, gear wheel 76 does not engage with any one intermittent driving gear 78a, 78b (with reference to Figure 17 (a)), and projecting part 61a, 61b of left and right do not give prominence to.

Sense switch 95a remains open constant (with reference to Figure 18 (b)), switch lever leading section 96Cb is from the first side face 99a (cleaved facet) of cam part 99 to the second side face 99b (connection face) mobile (with reference to Figure 17 (c)), thus sense switch 95b switches to connection (with reference to Figure 18 (b)) from disconnection.

As shown in figure 22, if motor 82 drives to forward direction further from above-mentioned state (with reference to Figure 21), and gear wheel 76 and cam part 99 rotation make to become angle θ 2 (with reference to Figure 17 (c)) clockwise from " origin position " (θ=0), then intermittent driving gear 78a engages with gear wheel 76 and starts to be rotated counterclockwise.And, be also rotated counterclockwise with the swivel plate 73a of intermittent driving gear 78a one.Thus, the web 65a engaged with swivel plate 73a is extruded toward the front.The projecting part 61a be connected with web 65a starts the action given prominence to toward the front.Start the door opening action of the door 2a in left side thus.

Sense switch 95a disconnects, and sense switch 95b connects (with reference to Figure 18 (c)).

As shown in figure 23, if motor 82 drives to forward direction further from above-mentioned state (with reference to Figure 22), and gear wheel 76 and cam part 99 rotation make to become angle θ 3 (with reference to Figure 17 (d)) clockwise from " origin position " (θ=0), then intermittent driving gear 78a and swivel plate 73a is rotated counterclockwise further.Also be rotated counterclockwise with the swivel plate 73a of intermittent driving gear 78a one.Thus, extrude web 65a toward the front further, and projecting part 61a proceeds the action given prominence to toward the front.

Sense switch 95a disconnects, and sense switch 95b connects (with reference to Figure 18 (d)).

As shown in figure 24, motor 82 drives to forward direction further from above-mentioned state (with reference to Figure 23), and gear wheel 76 and cam part 99 rotation make to become angle θ 4 (with reference to Figure 17 (e)) clockwise from " origin position " (θ=0), thus intermittent driving gear 78a and swivel plate 73a is rotated counterclockwise further.Thus, extrude web 65a toward the front further, thus before projecting part 61a arrives the outstanding end position preset.

The switch lever leading section 96Ca of switch lever 96a is mobile to the second side face 99b (connection face) from the first side face 99a (cleaved facet), and sense switch 95a switches to connection from disconnection.That is, sense switch 95a, 95b (detecting A/B) all connects (with reference to Figure 18 (e)).And, if sense switch 95a becomes connection from disconnection, then can confirm that the door opening action of the door 2a in left side roughly terminates, thus stop the energising to motor 82.

If stop the energising to motor 82 under above-mentioned state (with reference to Figure 24), then motor 82 slows down and stops.Before motor 82 stops, gear wheel 76 and cam part 99 continue it and rotate.

As shown in figure 25, stop under above-mentioned state (with reference to Figure 24) to motor 82 be energized to till motor 82 stops during, gear wheel 76 and cam part 99 rotate and make to become angle θ 5 (with reference to Figure 17 (f)) clockwise from " origin position " (θ=0).And intermittent driving gear 78a and swivel plate 73a is rotated counterclockwise.Thus, the projecting part 61a in left side more gives prominence to than above-mentioned state (with reference to Figure 24) and reaches maximum overhang H2.

The output of sense switch 95a, 95b is all connected (with reference to Figure 18 (f)).

By a series of action shown in Figure 21 to Figure 25, door opener 60 when carrying out the door opening action of door 2a in left side, according to " the detecting A/B=to disconnect/disconnect " of (3) of Figure 20, order change detection switch 95a, 95b of " detecting A/B=to connect/connect " of (2) of Figure 20 " detecting A/B=to disconnect/connect ", (1) of Figure 20.

By a series of operation of such Figure 21 to Figure 25, door opener 60 terminates the door opening action of the door 2a in left side.

And door opener 60 makes motor 82 rotate (reversion) to reverses direction, and carries out following operation, that is, via state that is contrary with the operation of above-mentioned door opening action, Figure 25 to Figure 21, and return the origin position of Fig. 8.When carrying out this return action, the state that sense switch 95a, 95b (detecting A/B) connect from the detection A/B=of the end of the outstanding action of expression projecting part 61a/connect, via the state that the detection A/B=of the outstanding midway state representing projecting part 61a disconnects/connects, the state that the detection A/B=becoming expression " origin position " disconnects/disconnects.That is, door opener 60 " detecting A/B=connection/connection ", Figure 20 " the detecting A/B=to disconnect/connect " of (2) according to (1) of Figure 20, order change detection switch 95a, 95b of " the detection A/B=disconnection/disconnect " of (3) of Figure 20.

Next, to the door opener 60 of present embodiment open right side door 2b time action be described.

Figure 26 to Figure 30 is the top view of the outstanding action of projecting part for illustration of right side.

As shown in figure 26, if motor 82 drives to reverses direction further from the state (with reference to Figure 17 (a)) of above-mentioned " origin position " (θ=0), and gear wheel 76 and cam part 99 rotation make to become angle θ 1 (identical with the θ 1 of Figure 17 (b)) counterclockwise from " origin position ", then the notch 76Db of gear wheel 76 becomes the state of the stopper portions 80b close to intermittent driving gear 78b.Under this state, gear wheel 76 does not engage with any one intermittent driving gear 78a, 78b, and projecting part 61a, 61b of left and right do not give prominence to.

Sense switch 95b remains open constant (with reference to Figure 19 (b)), switch lever leading section 96Ca is mobile to the second side face 99b (connection face) from the first side face 99a (cleaved facet) of cam part 99, thus sense switch 95a switches to connection (with reference to Figure 19 (b)) from disconnection.

As shown in figure 27, if motor 82 drives to reverses direction further from above-mentioned state (with reference to Figure 26), and gear wheel 76 and cam part 99 rotation make to become angle θ 2 (identical with the θ 2 of Figure 17 (c)) counterclockwise from " origin position " (θ=0), then intermittent driving gear 78b engages with gear wheel 76 and starts to turn clockwise.And, also turn clockwise with the swivel plate 73b of intermittent driving gear 78a one.Thus, the web 65b engaged with swivel plate 73b is extruded toward the front.The projecting part 61b be connected with web 65b starts the action given prominence to toward the front.Start the door opening action of the door 2b on right side thus.

Sense switch 95a connects, and sense switch 95b disconnects (with reference to Figure 19 (c)).

As shown in figure 28, if motor 82 drives to reverses direction further from above-mentioned state (with reference to Figure 27), and gear wheel 76 and cam part 99 rotation make to become angle θ 3 (identical with the θ 3 of Figure 17 (d)) counterclockwise from " origin position " (θ=0), then intermittent driving gear 78b and swivel plate 73b turns clockwise further.Also turn clockwise with the swivel plate 73b of intermittent driving gear 78b one.Thus, extrude web 65b toward the front further, thus projecting part 61b proceeds the action given prominence to toward the front.

Sense switch 95a connects, and sense switch 95b disconnects (with reference to Figure 19 (d)).

As shown in figure 29, motor 82 drives to reverses direction further from above-mentioned state (with reference to Figure 28), and gear wheel 76 and cam part 99 rotation make to become angle θ 4 (identical with the θ 4 of Figure 17 (e)) counterclockwise from " origin position " (θ=0), thus intermittent driving gear 78b and swivel plate 73b turns clockwise further.Extrude web 65b toward the front further thus, thus before projecting part 61b arrives the outstanding end position preset.

The switch lever leading section 96Cb of switch lever 96b is mobile to the second side face 99b (connection face) from the first side face 99a (cleaved facet), thus sense switch 95b switches to connection from disconnection.That is, sense switch 95a, 95b (detecting A/B) all connects (with reference to Figure 19 (e)).And, if sense switch 95b becomes connection from disconnection, then can confirm that the door opening action of the door 2b on right side roughly terminates, thus stop the energising to motor 82.

If stop the energising to motor 82 under above-mentioned state (with reference to Figure 29), then motor 82 slows down and stops.Before motor 82 stops, gear wheel 76 and cam part 99 continue it and rotate.

As shown in figure 30, stop under above-mentioned state (with reference to Figure 29) to motor 82 be energized to till motor 82 stops during, gear wheel 76 and cam part 99 rotate and make to become angle θ 5 (identical with the θ 5 of Figure 17 (f)) counterclockwise from " origin position " (θ=0).And intermittent driving gear 78b and swivel plate 73b rotates clockwise.Thus, the projecting part 61b on right side more gives prominence to than above-mentioned state (with reference to Figure 29) and reaches maximum overhang H2.

The output of sense switch 95a, 95b is all connected (with reference to Figure 19 (f)).

By a series of action shown in Figure 26 to Figure 30, door opener 60 when carrying out the door opening action of door 2b on right side, according to " the detecting A/B=to disconnect/disconnect " of (3) of Figure 20, order change detection switch 95a, 95b of " detecting A/B=to connect/connect " of (4) of Figure 20 " detecting A/B=on/off ", (5) of Figure 20.

By a series of operation of such Figure 26 to Figure 30, door opener 60 terminates the door opening action of the door 2b on right side.

And door opener 60 makes motor 82 rotate (reversion) to forward direction, and carries out following operation, that is, via state that is contrary with the operation of above-mentioned door opening action, Figure 30 to Figure 26, and return the origin position of Fig. 8.When carrying out this return action, the state that sense switch 95a, 95b (detecting A/B) connect from the detection A/B=of the end of the outstanding action of expression projecting part 61b/connect, via the state that the detection A/B=of the outstanding midway state representing projecting part 61b turns on/off, the state that the detection A/B=becoming expression " origin position " disconnects/disconnects.That is, door opener 60 " detecting A/B=connection/connection ", Figure 20 " the detecting A/B=on/off " of (4) according to (5) of Figure 20, order change detection switch 95a, 95b of " detecting A/B=disconnection/disconnection " of (3) of Figure 20.

Next, the door opening action continuing the door 2b opening right side after the door opener 60 of present embodiment being opened to the door 2a in left side is described.

Figure 31 (a) ~ Figure 31 (e) is the key diagram of the door opening action of the refrigerating-chamber door of the left and right of the door opener of present embodiment.

As shown in Figure 31 (a), door opener 60 is in origin position, and projecting part 61a, 61b are imported into, and door 2a, 2b of left and right are the states of closing.

As mentioned above, if user operates L.H.flapped door switch 48a (with reference to Fig. 1), then the motor 82 (with reference to Fig. 8) of door opener 60 rotates to forward direction.

Its result, as shown in Figure 31 (b), the projecting part 61a corresponding with the door 2a in left side gives prominence to, and door 2a clockwise (CW direction) rotates thus opens.Door 2a has the angular speed in clockwise (CW direction) corresponding with the outstanding speed of projecting part 61a.

As shown in Figure 31 (c), door 2a continues because of inertia to open.Now, owing to there is friction torque between hinge 17a and door 2a, so door 2a slows down gradually while open.On the other hand, the motor 82 of door opener 60 rotates to reverses direction, imports projecting part 61a.

Next, as shown in Figure 31 (d), if under the state opening 90 ° at door 2a, user operates R.H.flapped door switch 48b (with reference to Fig. 1), then as mentioned above, motor 82 rotates to reverses direction.Thus, if projecting part 61b gives prominence to, then the door 2b counterclockwise (CCW direction) on right side rotates and opens.Door 2b has the angular speed in counterclockwise (CCW direction) corresponding with the outstanding speed of projecting part 61b.

As shown in Figure 31 (e), door 2b continues because of inertia to open.Now, owing to there is friction torque between hinge 17b and door 2b, then door 2b slows down gradually while open.On the other hand, the motor 82 of door opener 60 rotates to forward direction, imports projecting part 61b.

As mentioned above, for the door opener 60 of present embodiment, a 2a can be opened by operation L.H.flapped door switch 48a, and a 2b can be opened by operation R.H.flapped door switch 48b.

Next, the characteristic of enabling power during air exercise enabling 2a, 2b is described.

Figure 32 be represent when being opened by the refrigerating-chamber door of closedown, the chart of the open angle of door and the relation of enabling power.

As shown in figure 32, the transverse axis of chart is the open angle of 2a, 2b, θ _d=0 is the state that 2a, 2b close, θ _dmaxit is maximum open angle.This θ _dmax(maximum open angle) represent such as door 2a, 2b and not shown block, open angle when abutting close to the not shown wall etc. of the setting place of refrigerator 1.θ 1 is that door closer 37 (with reference to Fig. 6) makes 2a, 2b produce the angle ψ 2 (with reference to Fig. 6 (b)) of closing forces.θ 2 is pressed by projecting part 61a, 61b of door opener 60 and opens the angle of 2a, 2b.

The longitudinal axis of chart represents the enabling power of 2a, 2b.As this enabling power, such as, can be the torque around hinge 17a, 17b (with reference to Fig. 1), or also can be the pulling force of hinge 17a, 17b (with reference to Fig. 1) door end, handle portion etc. farthest from door 2a, 2b.

The door spacer 15 (with reference to Fig. 2) of door 2a, 2b is built-in with not shown magnet, is adsorbed in before body of thermal insulating box 10 (with reference to Fig. 2) and does not produce gap.Thus, when starting to open 2a, 2b, except door closer load, need to be used for the enabling power (magnet load) from the body of thermal insulating box 10 being adsorbed with magnet stripping door spacer 15 above.It is comparatively large when starting to open 2a, 2b that this is used for the enabling power (magnet load) peeled off, if open a little, the absorption affinity (magnetic force) of magnet sharply reduces, thus enabling power sharply diminishes.

In addition, because the door 2a in left side is provided with rotatable spacer 18, so when opening 2a, be applied for the enabling power (rotatable spacer load) making rotatable spacer 18 rotate around rotatable spacer fulcrum 19 further.That is, the door 2a in left side is compared with the door 2b on right side, and the enabling power started when opening is larger.

The friction torque that fulcrum friction load is mainly produced by the frictional resistance of hinge 17a, 17b, thus the gamut of open angle substantially same produce.

Therefore, the enabling power of door 2a, 2b is starting θ when opening _d=0 is maximum, sharply reducing, at the θ extremely as maximum open angle during the θ 1 as door closer scope _dmaxproduce substantially same friction torque before.

Next, to when utilizing door opener 60 to open 2a, 2b, suitable opening characteristic (angular speed characteristic, angle displacement characteristic) is described.

If by the L.H.flapped door switch 48a of user or the operation of R.H.flapped door switch 48b, make projecting part 61a or projecting part 61b action as described above, then door 2a, 2b opens towards user.Now, preferably to make the action of 2a, 2b not produce inharmonious but feel the mode of natural impression, 2a, 2b is opened.

Under the state that door 2a, 2b close, the halted state of yes speed=0, in order to carry out door opening action from halted state, carries out the acceleration movement that speed is accelerated from 0.Door 2a, 2b are revolving doors, thus its motion is angular acceleration motion, but illustrate in order to easy understand, and door 2a, 2b only carry out acceleration movement.

As door opening action user being given to natural impression, during projecting part 61a, 61b carry out outstanding action, preferred door 2a, 2b carry out acceleration same smoothly.Herein, " carrying out same acceleration " refers to motion with uniform acceleration, and during motion with uniform acceleration, velocity linear increases.

Herein, motion with uniform acceleration is prevailing as the motion of natural object, thus experiences natural impression.Such as, the motion of object when freely falling is motion with uniform acceleration, or slides on the face with friction and the motion of the object slowed down is motion with uniform acceleration to negative direction.

Like this, object is subject to certain power and the motion of acceleration and deceleration is all motion with uniform acceleration, from but the daily motion seen and feel extremely naturally impression.Therefore, door 2a, 2b, by carrying out the opening action approximate with motion with uniform acceleration, become the door opening action giving natural impression.

The speed of carrying out the object of motion with uniform acceleration increases in certain proportion in time or reduces.Therefore, in the door opener 60 of present embodiment, the outstanding action of projecting part 61a, 61b is set as, is initially low speed at outstanding, and little by little gathers way, at the end of outstanding, obtain maximal rate.Thus, projecting part 61a, 61b carry out the door opening action of the sense of acceleration that can obtain door 2a, the 2b close with motion with uniform acceleration, thus realize naturally feeling the door opener 60 of door opening action.

The action of projecting part 61a, 61b is rectilinear motion, and door 2a, 2b are rotary motions, thus its direction of motion, unit are also different, but following detailed description, there is proportionate relationship between the speed of projecting part 61a, 61b and the angular speed of door 2a, 2b.Projecting part 61a, 61b are by carrying out the movement approximate with motion with uniform acceleration, thus door 2a, 2b carry out approximate movement of moving with suitable constant angular.

Figure 33 (a) is the chart representing the angular speed of preferred refrigerating-chamber door when opening refrigerating-chamber door and the relation of opening time.Horizontal axis representing time, the longitudinal axis represents the angular speed of 2a, 2b.Figure 33 (b) is the chart representing the open angle of refrigerating-chamber door and the relation of opening time.Horizontal axis representing time, the longitudinal axis represents the open angle of 2a, 2b.

As shown in Figure 33 (a), during time t=0, door 2a, 2b close.After being delayed to t1 from the t=0 time started, if clamshell doors device 60 is energized and makes door opener 60 action when t=t1, then from t=t1 to t2, projecting part 61a, 61b are outstanding to door 2a, 2b direction.T=t1 to t2 becomes makes 2a, 2b accelerate and the acceleration range opened it.That is, the action of the action of the door 2a of Figure 31 (a) to Figure 31 (b) or the door 2b of Figure 31 (c) to Figure 31 (d) becomes the action of this acceleration range.

In this acceleration range, angular speed increases equally together with the time, thus becomes the straight line to upper right in chart, becomes maximum angular velocity omega when t=t2 _dmax.

During t=t2 to t=t3, door 2a, 2b do not carry out the acceleration of projecting part 61a, 61b.The inertia scope that 2a, 2b continue because of inertia to open is become during t=t2 to t=t3.

That is, the action of the action of the door 2a of Figure 31 (b) to Figure 31 (c) or the door 2b of Figure 31 (d) to Figure 31 (e) becomes the action of inertia scope.During this inertia scope, door 2a, 2b are subject to frictional resistance from hinge 17a, 17b, thus continue to open with inertia and slow down gradually.

Frictional resistance generally applies quality and coefficient of friction and the certain power obtained, and when rotary gemel as in the present embodiment, produces friction torque accordingly with the diameter of the part of the quality of supporting door 2a, 2b.

During door 2a, 2b open because of inertia, slowed down by certain friction torque, thus angular speed during this inertia scope and time reduce equally together, become the straight line to bottom right in chart.When t=t3, door 2a, 2b abut with block etc. and before stopping, after t=t2 to t=t3 during, become the motion with uniform acceleration to negative direction.

In addition, when the coefficient of friction of hinge 17a, 17b be negligible less, in reduction range, angular speed does not reduce, thus angular speed keeps maximum angular rate ω shown in dotted linely _dmaxconstant and constant.

In the chart of the angle displacement shown in Figure 33 (b), in the acceleration range of time t=t1 to t2, the open angle θ of door 2a, 2b _dincrease in the mode of the conic section protruded downwards.In addition, within the scope of the inertia of time t2 to t3, the open angle θ of door 2a, 2b _dincrease in the mode of the conic section protruded upward.And, the open angle θ of door 2a, 2b _dmaximum open angle θ is become when t=t3 _dmax.The above-mentioned conic section protruded downwards and the conic section protruded upward continuous.Herein, as θ _dmaxif be set as the angle of more than 90 ° or 90 °, then door 2a, 2b can open fully in order to carry out the putting into taking-up of food, thus suitable in easy use.

Next, to when utilizing door opener 60 to open refrigerating-chamber door 2a, 2b, the suitable opening action time is described.

Generally, the reflection interval of people is 0.4 second to 0.5 second, and this is such as known from accelerator pedal time departure to pin be judged as needing braking moment from sensing the danger when driving a car.

If because the unforeseen phenomenon of people is producing than in this short time reflection interval, cannot react, so such phenomenon feels unexpected too at a high speed, thus feel inharmonious.Therefore, when using door opener 60 to open 2a, 2b, after operation L.H.flapped door switch 48a or R.H.flapped door switch 48b, if door 2a or door 2b is started to open and reaches maximum speed or maximum angular velocity omega _dmaxtill t2 actuation time be set as more than 0.4 second, then user can react to the action of nearby opening for door 2a, 2b, thus can not feel door opening action suddenly, and what feel is natural action.

During operation as L.H.flapped door switch 48a and R.H.flapped door switch 48b, can be press with finger above-mentioned L.H.flapped door switch 48a and R.H.flapped door switch 48b moment, also can be that finger is from above-mentioned L.H.flapped door switch 48a and R.H.flapped door switch 48b departure time.But if before finger leaves from above-mentioned L.H.flapped door switch 48a and R.H.flapped door switch 48b, door 2a, 2b start to open, then have the unexpected impression pointing door 2a, 2b pressing be opened.Thus, door 2a, 2b preferably opens from after L.H.flapped door switch 48a or R.H.flapped door switch 48b leaves at finger.

In order to above-mentioned time t2 is set to more than 0.4 second, such as preferred after user operates L.H.flapped door switch 48a or R.H.flapped door switch 48b, start to open on the opportunity of t1 with about 0.1 second time delay.And, after preferably becoming t1, motor 82 be energized and start to carry out opening action, will maximum speed or maximum angular velocity omega be reached _dmaxtill outstanding T=actuation time (t2-t1) be set as more than 0.3 second.

On the other hand, if actuation time, t2 was long, then feel that door opening action is slow artificially, actuation time, t2 was preferably set to less than 0.8 second of maximum also slower a little than the reflection interval of people degree.By setting like this, the door opening action of door opener 60 can not be too fast and too unexpected, and can not be excessively slow, can carry out suitable door opening action.

That is, be energized to motor 82 and projecting part 61a, 61b start to carry out outstanding action, door 2a, 2b start open and reach maximum speed or maximum angular velocity omega _dmaxtill T outstanding actuation time be more than 0.3 second, less than 0.7 second comparatively suitable.

As mentioned above, in order to realize natural door opening action, the opening characteristic of 2a, 2b and uniform acceleration or constant angular is preferably made to move approximate.In addition, door 2a, 2b starts to open and the T outstanding actuation time reached till maximal rate or maximum angular rate is preferably set to more than 0.3 second less than 0.7 second.In addition, door opener 60 does not carry out special speeds control to motor 82, such as preferably following structure, that is, by making motor 82 rotate with certain specified rotary speed, make projecting part 61a, 61b carry out the action approximate with motion with uniform acceleration.

< projecting part action >

Next, web 65a, 65b and projecting part 61a, 61b to be moved because of the spinning movement of swivel plate 73a, 73b thus the action that door 2a, 2b open is described.In addition, below the action that door 2a opens only is described, omits the explanation carrying out the door 2b of action identically with this 2a.

Figure 34 (a) to Figure 34 (f) is the swivel plate of door opener and the action specification figure of web.In addition, Figure 34 (a) is in Figure 34 (f), and symbol ra to symbol rq represents the tooth 101A ~ 101P of the web 65a being located at web 65a and is located at the engagement spacing radius of circle that the tooth 102a of swivel plate 73a ~ tooth 102q engages.

As shown in Figure 34 (a), swivel plate 73a is in origin position.As mentioned above, L.H.flapped door switch 48a is operated by user and rotates counterclockwise swivel plate 73a.

As shown in Figure 34 (b), tooth 101C the engaging between tooth 102c, 102d at swivel plate 73a of web 65a, thus web 65a moves to the direction of arrow.Thus, projecting part 61a starts to carry out outstanding action.That is, door 2a starts to open.

As shown in Figure 34 (c), swivel plate 73a further rotates, tooth 101F the engaging between tooth 102f, 102g at swivel plate 73a of web 65a, thus web 65a moves to the direction of arrow further.

As shown in Figure 34 (d), swivel plate 73a further rotates, tooth 101J the engaging between tooth 102j, 102k at swivel plate 73a of web 65a, thus web 65a moves to the direction of arrow further.

As shown in Figure 34 (e), swivel plate 73a further rotates, tooth 101N the engaging between tooth 102n, 102p at swivel plate 73a of web 65a, thus web 65a moves to the direction of arrow further.

As shown in Figure 34 (f), swivel plate 73a further rotates, and is positioned at and leans on the tooth 102q of the periphery of swivel plate 73a to push the tooth 101P of the rear end being positioned at web 65a toward the front most.Web 65a moves to the direction of arrow further and makes projecting part 61a outstanding in the mode becoming maximum overhang H2.The outstanding speed of projecting part 61a becomes maximal rate, stops afterwards.

And as mentioned above, swivel plate 73a rotates to reverses direction (clockwise), returns the origin position represented in Figure 34 (a) via the state of Figure 34 (f) to Figure 34 (b).

Next, the speed characteristics of web 65a, projecting part 61a and door 2a, 2b are described.

As mentioned above, the tooth 101A to 101P of web 65a and swivel plate 73a and tooth 102a to 102q engagement from radius is the minimum tooth 101A of ra and tooth 102a is located at respectively.The rq that final until radius is maximum, radius incrementally engages.Now, the spinning movement of swivel plate 73a is transformed to the linearly operating of web 65a and projecting part 61a.

Motor 82 rotates with the specified rotary speed of certain speed, and when swivel plate 73a rotates with the suitable rotary speed of having been slowed down by reducing gear train 83, the translational speed of web 65a and projecting part 61a is low speed when beginning action.Afterwards, the translational speed of web 65a and projecting part 61a has acceleration gradually and finally becomes the such accelerating performance of maximal rate.The degree of this acceleration is represented by the maximum radius rq of swivel plate 73a and the ratio of least radius ra, i.e. rq/ra.

Next, the outstanding speed characteristics of projecting part 61a and outstanding force characteristic are described.

Figure 35 (a) is when representing that projecting part is given prominence to, the chart of speed and the relation of time.Transverse axis is the time, and the longitudinal axis is the outstanding speed of projecting part.Figure 35 (b) is when representing that projecting part is given prominence to, the chart of power and the relation of time.Transverse axis is the time, and the longitudinal axis is the outstanding power of projecting part.In addition, in Figure 35 (a) and Figure 35 (b), t=0 represents the state of Figure 34 (a), is the moment that projecting part 61a starts action.T is that projecting part 61a reaches maximum speed or maximum angular velocity omega _dmaxtill the time [T=(t2-t1)] (wherein, the time till t1 is the state becoming Figure 34 (a), t2 be become Figure 34 (f) till the time).

If the rotary speed of swivel plate 73a to be set to N (rpm), then the angular velocity omega (rad/s) of swivel plate is represented by following formula (1).

ω=(N/60) × 2 π ... (formula 1)

The speed of projecting part 61a now becomes the tangential direction speed of the spacing radius of circle of the tooth 102a ~ 102q of the swivel plate 73a engaged with the tooth 101A ~ 101P of web 65a.

Therefore, the speed Va of the projecting part 61a of the t1 (till becoming the state of Figure 34 (a) time) shown in Figure 35 (a) becomes the tangential direction speed of the part of spacing radius of circle ra, thus following formula (2) is set up.

Va=ω × ra=(N/60) × 2 π × ra ... (formula 2)

This Va extremely low speed, accelerates from the halted state of speed 0.

In addition, the speed Vq of the projecting part 61a of the t2 (till becoming the state of Figure 34 (f) time) shown in Figure 35 (a) becomes the tangential direction speed of the part of spacing radius of circle rq, thus following formula (3) is set up.

Vq=ω × rq=(N/60) × 2 π × rq ... (formula 3)

From formula 2 and formula 3, the outstanding speed of projecting part 61a and the spacing radius of circle of tooth engaged between swivel plate 73a with web 65a in direct ratio.

In addition, as mentioned above, because spacing radius of circle ra to rq has the relation of ra < rb < rc < rd < re < rf < rg < rh < rj < rk < rm < rn < rp < rq, if so such as the ratio of rb/ra, the ratio of rc/rb is such, the spacing radius of circle of adjacent tooth increases substantially samely, then the outstanding speed of projecting part 61a and the angular speed of swivel plate 73a increase in direct ratioly.

Therefore, according to this door opener 60, special speeds control not being carried out to motor 82, such as, by making motor 82 rotate with certain specified rotary speed, projecting part 61a, 61b can be made to carry out the action approximate with motion with uniform acceleration.

And in this door opener 60, if t=t2 described above, then swivel plate 73a temporarily stops because motor 82 stops, and afterwards, motor 82 reverses and projecting part 61a returns initial point.

In addition, the outstanding power of projecting part 61a and the spacing radius of circle of tooth that engages between swivel plate 73a with web 65a inversely proportional.

That is, for the outstanding power of projecting part 61a, as shown in Figure 35 (b), outstanding power Pa during t=t1 is maximum.In addition, the outstanding power of projecting part 61a is increased to rq from ra and reduces along with the spacing radius of circle of the swivel plate 73a engaged with web 65a.And the outstanding power of projecting part 61a has the same minimizing trend becoming minimum of a value Pq when t=t2.

In addition, in above explanation, the action of the projecting part 61a in left side is illustrated, but for the projecting part 61b on right side, except symmetrical, carries out action in the same manner as the projecting part 61a in left side.

Next, the relation of the speed from hinge 17a, 17b door end farthest of the outstanding speed of projecting part 61a, 61b during clamshell doors action and door 2a, 2b is described.

Figure 36 (a) be represent the projecting part in left side when giving prominence to, the key diagram of the relation of the speed of the speed of projecting part and the end of left side refrigerating-chamber door, Figure 36 (b) is the key diagram of the relation of the speed of when representing that the projecting part on right side is given prominence to, the speed of projecting part and the end of right refrigeration compartment door.

As shown in Figure 36 (a), the outstanding speed of projecting part 61a is set to V (mm/sec), the distance of hinge 17a to projecting part 61a is set to Rda (mm), Lda (mm) is set to the distance from door end farthest by from hinge 17a, tangential direction speed from hinge 17a door end is farthest set to Wa (mm/sec), when the angular speed of door 2a being set to ω da (rad/sec), following formula (4) is set up.

ω da=V/ (2 × π × Rda)=Wa/ (2 × π × Lda) ... (formula 4)

Pass from the hinge 17a tangential direction speed Wa of door the end farthest and outstanding speed V of projecting part 61a is following formula (5).

Wa=(Lda/Rda) × V ... (formula 5)

That is, tangential direction speed Wa and with hinge 17a for the width of door 2a during reference position is in direct ratio with the ratio (Lda/Rda) of the installation site of projecting part 61a.

Therefore, if projecting part 61a can carry out the motion approximate with motion with uniform acceleration, then the motion approximate with motion with uniform acceleration is also carried out in the door end of door 2a, thus can obtain natural unfolding mode.

The maximum Waq of tangential direction speed Wa, when outstanding speed V obtains the V=Vq of maximum, is represented by following formula (6).

Waq=(Lda/Rda) × Vq ... (formula 6)

Next, the outstanding speed of the projecting part 61a during door opening action of opposite house 2b and being described from the relation of the speed of the hinge 17b door end farthest of door 2b.

As shown in Figure 36 (b), the outstanding speed of projecting part 61b is set to V (mm/sec), the distance of hinge 17b to projecting part 61b is set to Rdb (mm), Ldb (mm) is set to the distance from door end farthest by from hinge 17b, tangential direction speed from hinge 17b door end is farthest set to Wb (mm/sec), when the angular speed of refrigerating-chamber door 2b being set to ω db (rad/sec), following formula (7) is set up.

ω db=V/ (2 × π × Rdb)=Wb/ (2 × π × Ldb) ... (formula 7)

Pass from the hinge 17b tangential direction speed Wb of door the end farthest and outstanding speed V of projecting part 61b is following formula (8).

Wb=(Ldb/Rdb) × V ... (formula 8)

That is, tangential direction speed Wb and with hinge 17b for the width of door 2b during reference position is in direct ratio with the ratio (Ldb/Rdb) of the installation site of projecting part 61b.

Therefore, if projecting part 61b carries out the motion approximate with motion with uniform acceleration, the motion approximate with motion with uniform acceleration is also carried out in the door end of door 2b, thus door 2b can carry out natural unfolding mode.

The maximum Wbq of tangential direction speed Wb, when outstanding speed V obtains the V=Vq of maximum, is represented by following formula (9).

Wbq=(Ldb/Rdb) × Vq ... (formula 9)

Door opener 60 according to the present embodiment, if make motor 82 rotate to forward direction with certain rotation speed, then projecting part 61a carries out the motion approximate with motion with uniform acceleration.On the other hand, if make motor 82 rotate to reverses direction with certain rotation speed, then projecting part 61b carries out the motion approximate with motion with uniform acceleration.

Therefore, door opener 60 does not carry out special speeds control, if make motor 82 rotate to rotating forward or reverses direction with certain speed, then can carry out natural door opening action.

Thus, according to this door opener 60, can simplified control circuit.In addition, according to door opener 60, natural impression can be given with the structure clamshell doors action of cheapness.

Next, the suitable configuration of clamshell doors device 60, door 2a and door 2b is described.

Again return Fig. 8, driving force during the rotating to forward direction or reverses direction an of motor 82 is passed to gear wheel 76 and intermittent driving gear 78a, 78b by door opener 60, and carries out the outstanding action of projecting part 61a, the 61b corresponding with door 2a, 2b.

The outstanding action of projecting part 61a and the outstanding action of projecting part 61b and driving force, speed, except frictional resistance or the forward direction of motor 82 identical except the difference equal error of the characteristic of reverses direction.That is, the outstanding speed of projecting part 61a and the outstanding speed of projecting part 61b roughly equal, its maximum can be all the Vq (mm/sec) shown in Figure 35 (a).

Projecting part 61a, 61b of being located at door opener 60, respectively in the position opposed with door 2a and door 2b, can open a 2a and door 2b both sides successively.

Projecting part 61a, 61b are to configure close to the left surface of shell 62 of door opener 60 and the mode of right flank, and its interval is the G shown in Figure 36, is certain value.The value of this G such as can be set as about 150mm to 180mm.

In addition, although not shown, but the width Ldb (with reference to Figure 36 (b)) equal (Lda=Ldb) of the width Lda of door 2a (with reference to Figure 36 (a)) and door 2b, under door 2a and the symmetrical situation of door 2b, the center of door border 72a, 72b of the center, left and right of door opener 60 and door 2a, 2b (with reference to Figure 36 (a) and Figure 36 (b)) is made as one man to be configured in symmetrical position.Thus, the projecting part 61b of the projecting part 61a of door 2a and the distance Rda (with reference to Figure 36 (a)) of hinge 17a and door 2b and the distance Rdb (with reference to Figure 36 (b)) of hinge 17b is Rda=Rdb.The configuration of such door opener 60 does not preferably produce difference in the unfolding mode of door 2a and door 2b.

Next, the suitable configuration of the door opener 60 when opposite house 2a is different with the width of door 2b is described.

When utilize door opener 60 carry out a 2a, door 2b door opening action time, user stands in the front of refrigerator 1, reaches to operate L.H.flapped door switch 48a or R.H.flapped door switch 48b from the front of door border 72a, 72b of door 2a, 2b (with reference to Figure 36 (a) and Figure 36 (b)).

When observing from user side, when door opener 60 carries out action and opens 2a, for door 2a from hinge 17a door end farthest with tangential velocity Wa towards oneself close action.In addition, when opening 2b, for door 2b from hinge 17b door end farthest with tangential velocity Wb towards from a point close action.

Therefore, when carrying out the door opening action of 2a, 2b, if maximum tangential velocity Waq, the Wbq of door 2a, 2b (with reference to Figure 36 (a) and Figure 36 (b)) are roughly equal, then user feels that the opening speed of 2a, 2b is roughly equal.Therefore, even if when the width of door 2a, 2b is different, also the preferred position at maximum tangential velocity Waq=Wbq arranges door opener 60.The allocation position meeting the door opener 60 of such condition is below described.

As shown in Figure 36 (a) and Figure 36 (b), the distance of projecting part 61a and projecting part 61b is set to G, the distance of door border 72a to projecting part 61a is set to Ga, when the distance of door border 72b to projecting part 61b is set to Gb, the distance between door border 72a, 72b is fully little and can ignore compared with the width of door 2a, 2b.That is, following formula (10) is set up.

G=Ga+Gb ... (formula 10)

In addition, as shown in Figure 36 (a) and (b), known following formula (11) and following formula (12) are set up.

Rda=Lda-Ga ... (formula 11)

Rdb=Ldb-Gb ... (formula 12)

In addition, derive following formula (13) by above-mentioned formula 6,

Waq=(Lda/Rda) × Vq={Lda/ (Lda-Ga) } × Vq ... (formula 13)

Following formula (14) is derived by (formula 9).

Wbq=(Ldb/Rdb) × Vq={Ldb/ (Ldb-Gb) } × Vq ... (formula 14)

And the condition that above-mentioned formula 13 is equal with above-mentioned formula 14 is that the right of two formulas is equal, thus following formula (15) is set up,

{ Lda/ (Lda-Ga) }=(Ldb/ (Ldb-Gb) } ... (formula 15)

Formula is launched and substitutes into (formula 10) further, then

Lda×{Ldb-(G-Ga)}＝Ldb×(Lda-Ga)

Lda×(G-Ga)＝Ldb×Ga

Lda×G＝(Lda+Ldb)×Ga

Thus following formula (16) is set up.

Ga=G × { Lda/ (Lda+Ldb) } ... (formula 16)

The Ga on the left side of formula 16 is the distances from door border 72a of the projecting part 61a that a 2a is opened wide.Therefore, if be set to by this Ga door opener 60 is installed on representative size during refrigerator 1, then the right of above-mentioned formula 16 becomes the constant determined by the width Ldb of distance G, the width Lda from the hinge 17a of door 2a and the hinge 17b from door 2b, wherein, distance G be by the projecting part 61a of the structures shape of door opener 60 and projecting part 61b between distance.

That is, by door opener 60 being located at refrigerator 1 in the mode configuring projecting part 61a in the position of the Ga obtained by above-mentioned formula 16, thus when the outstanding speed of projecting part 61a, 61b is equal, the maximum tangential velocity Waq of door 2a, 2b, Wbq are equal.Thus, user can feel that the opening speed of 2a, 2b is roughly equal.Therefore, according to this door opener 60, even if the balance of door opening action also can be made good when the width of door 2a, 2b is different, thus natural door opening action can be realized.

Herein, the various refrigerators 1 of width Lda, Ldb of door 2a, 2b (with reference to Figure 36 (a) and Figure 36 (b)) the maximum 500mm of being about to the minimum 280mm of being about are used to have rated the opening speed of 2a, 2b.Its result, specify that, if above-mentioned maximum tangential velocity Waq, Wbq is roughly set as 700 to 1100mm/sec, then user can not feel that the opening speed of 2a, 2b is too fast or cross slowly and feel suitable door opening action.

In addition, the door 2a shown in Figure 36 (a) and Figure 36 (b) is provided with rotatable spacer 18.Therefore, when opening 2a, add rotatable spacer load (with reference to Figure 32), thus the situation that enabling force rate opens a 2b is large.Therefore, compare with the situation opening a 2b, more difficultly open a 2a.Therefore, as the installation site of door opener 60, preferred door opener 60 more moves to door 2b side than above-mentioned Ga (with reference to formula 16), and in other words preferably the Rda size shown in Figure 36 (a) is large.Thus, the moment around hinge 17a when opening 2a is large, thus can easily open a 2a.

Next, the characteristic of the outstanding power of projecting part 61a is described.

As mentioned above, for the tensile force characteristic (with reference to Figure 32) of door 2a, 2b, owing to needing when starting to open 2a, 2b for peeling off the tensile force of the door spacer 15 being adsorbed with magnet thus tensile force is larger.But if open 2a, 2b a little, the magnetic adsorbability of magnet sharply reduces, thus tensile force sharply diminishes.

Therefore, as the characteristic of the suitable outstanding power of projecting part 61a, outstanding power when being preferably the beginning of opening action is maximum characteristic.

As shown in Figure 34 (a) to Figure 34 (f), the engagement of the tooth of web 65a and swivel plate 73a starts with minimum distance radius ra, until maximum distance radius rq.Period, distance radius increases gradually, and the spinning movement of swivel plate 73a is transformed to the linearly operating of web 65a and projecting part 61a.

According to the door opener 60 of such structure, as mentioned above, the outstanding power being passed to projecting part 61a from web 65a action time comparatively large, reduce gradually and finally become minimum.As mentioned above, the minimizing degree of this outstanding power is represented by the least radius ra of swivel plate 73a and the ratio (ra/rq) of maximum radius rq.

In addition, according to the door opener 60 of such structure, as mentioned above, by T outstanding actuation time is set as more than 0.3 second less than 0.7 second, opening action can not be felt suddenly, and also can not feel slow, and feel it is natural action.

In addition, in door opener 60, as mentioned above, projecting part 61a terminates outstanding action and the door 2a T-phase etc. outstanding actuation time that reaches that time of maximum speed or maximum angular speed and swivel plate 73a rotate in the position from Figure 34 (a) to Figure 34 (f).

According to this door opener 60, suitably set the speed reducing ratio from motor 82 to swivel plate 73a, thus as mentioned above, T outstanding actuation time can be set as more than 0.3 second less than 0.7 second.Therefore, door opener 60 needs reasonable time by making door opening action, can realize suddenly not feeling the door opening action of natural action.

Next, the impact of number clamshell doors characteristic of amount of the food being contained in door compartment 13 is described.

Because door opener 60 is the speed reducing ratio that the mode of more than 0.3 second sets reduction gearing to make the T outstanding actuation time of door opening action, even if so do not put into any food at door compartment 13, when only there is the deadweight of door 2a, 2b the light-dutyest, outstanding actuation time, T also can not become less than 0.3 second.

Therefore, according to door opener 60, door 2a, 2b can not accelerate in the short time below 0.3 second and suddenly open the door.

In addition, if accommodate a large amount of food of such as about 5kg to 10kg at door compartment 13, then inertia mass is larger than the situation of the deadweight that only there is door 2a, 2b.But, according to this door opener 60, because the outstanding power of projecting part 61a is maximum when door 2a starts to open, so the outstanding speed of projecting part 61a becomes low speed a little, and the impact that this speed reduces can be reduced to the degree that user can not clearly feel.

In addition, according to this door opener 60, owing to T outstanding actuation time can be set as more than 0.3 second less than 0.7 second, so have nothing to do with the number of amount of food of the door compartment 13 being contained in 2a, 2b, door opening action can not too fast also can not be excessively slow.Therefore, according to door opener 60, the opening action of 2a, 2b can not be felt suddenly, natural door opening action can be realized.In addition, according to door opener 60, by T outstanding actuation time is set to more than 0.3 second, thus acceleration during door opening action diminishes, and also can not apply impulsive force to the food being contained in door compartment 13.

In addition, because this door opener 60 is structures that projecting part 61a, 61b give prominence to from the origin position that projecting part 61a, 61b do not give prominence to, so projecting part 61a, 61b can not retreat from origin position.That is, in this door opener 60, there is no need for the space retreated for projecting part 61a, 61b, thus the miniaturization of door opener 60 can be realized.In addition, according to this door opener 60, because projecting part 61a, 61b do not need to retreat further from origin position, so there is no need for the driving force retreated, thus high as the efficiency of driving mechanism, and the waste of energy is few.In addition, according to door opener 60, due to the actuating quantity of projecting part 61a, 61b can be increased in the scope in limited space, so the effect that the opening action with 2a, 2b is stable.

Next, an example of the suitable structure of clamshell doors device 60 is described.

Figure 37 is the top view of the suitable example schematically representing door opener.In addition, Figure 37 and Fig. 8 is different, omits the diagram of swivel plate 73a, 73b, simplifies and describes gear wheel 76, web 65.

As shown in figure 37, when overlooking, web 65a, 65b are the approximate right angle triangle that rear side (rear side) front end is thin, inner side becomes hypotenuse of door opener 60.Therefore, the rear side of the left and right width in the space clipped by web 65a, 65b of left and right is the widest.

In the space that this is the widest, be in series configured with motor 82, reducing gear train 83 and wiring space 81 along the back side, thus maximally can effectively utilize this space.

In addition, because motor 82 and reducing gear train 83 are along back side configuration, so the driving sound of motor 82 and the engagement sound that produces from reducing gear train 83 produce from from user side farthest.Thus, according to this door opener 60, there is the effect that can realize low noise.

In addition, as the pivot of intermittent driving gear 78a, 78b and swivel plate 73a, 73b swivel plate center 74a, 74b and as the Second Edge of web 65a, 65b front face side be configured to close to as before shell 62 with the shell centre position 100 of the centre at the back side.By being set to such configuration, when importing projecting part 61a, 61b, at backrest surface side, shell centre position 100 configuration web 65a, 65b than shell 62.In addition, in the shell centre position 100 than shell 62, side configures projecting part 61a, 61b on the front.

In addition, because the maximum overhang H2 of projecting part 61a, 61b is roughly equal with the length of web 65a, 65b, so in Figure 37, when by dotted line illustrated projecting part 61a maximum outstanding, web 65a is positioned at the position of side more forward than shell centre position 100.

According to such door opener 60, the length of the fore-and-aft direction of shell 62 is roughly twices of the fore-and-aft direction length of web 65a, 65b, so reduce the length of the fore-and-aft direction of shell 62, thus there is the effect of the miniaturization that can realize door opener 60.

In addition, in this door opener 60, be configured to due to gear wheel 76 position that is positioned at than the forward side of reducing gear train 83 and be positioned at the position of side more forward than intermittent driving gear 78a, 78b, so the diameter of gear wheel 76 can be expanded.Thus, there is following effect, that is, reliably can carry out the engagement of said gear, and suitably can set tooth matching angle θ 0, the θ 2 of gear wheel 76 with intermittent driving gear 78a, 78b, the relation of θ 6 (with reference to Figure 10).

In addition, in this door opener 60, by possessing the test section 104 of switch lever 96a, 96b and sense switch 95a, 95b in the position configuration of side more forward than gear wheel 76, test section 104 is configured to the drive part away from intermittent driving gear 78a, 78b and swivel plate 73a, 73b (with reference to Fig. 8) etc.Thus, door opener 60 has following effect, that is, protect from sense switch 95a, 95b wiring from above-mentioned drive part impact thus reliability is higher.In addition, by the configuration detection portion, position 104 in side more forward than gear wheel 76, door opener 60 has following effect, that is, can carry out the suitable on/off action of sense switch 95a, 95b via switch lever 96a, 96b from the cam part 99 being located at gear wheel 76.

< block diagram >

Next, the structure of the control system for controlling door opener 60 is described.

As mentioned above, the upper surface side that substrate 41 (with reference to Fig. 2) is installed on the ceiling of refrigerator 1 is controlled.

Figure 38 is the block diagram of the structure of the control system representing door opener.

As shown in figure 38, the control substrate 41 as control part is connected with the power supply 42 of the direct current generating assigned voltage from industrial power etc.In addition, control substrate 41 and be connected with control panel 40, this control panel 40 possesses the display unit 43b such as operating unit 43a and such as LED such as the pressing press button such as carrying out temperature adjustment.

In addition, control substrate 41 and temperature sensor 44,45,46,47, the cold air control unit, compressor 51, door opener 60 and the door sensor 49 that are made up of refrigerated storage temperature band room cold air control unit 20 and cryogenic temperature band room cold air control unit 21 be all connected, and be configured to carry out above-mentioned driving and control.In addition, as mentioned above, control panel 40 is configured at before a 2a.Thus, when user changes each function or confirms each function, its ease of use becomes good.

In addition, control substrate 41 to be connected with L.H.flapped door switch 48a, R.H.flapped door switch 48b.As mentioned above, L.H.flapped door switch 48a and R.H.flapped door switch 48b is located at 2a, 2b.When user operates L.H.flapped door switch 48a or R.H.flapped door switch 48b, its signal sends to control substrate 41.

In addition, motor 82, sense switch 95a, 95b of controlling substrate 41 and door opener 60 are connected.In addition, the electric power required for driving of door opener 60 and control substrate 41 supplies from power supply 42.

Be configured with for notifying that to user door is in the reporting unit of half-open position at control panel 40.As this report unit, such as, buzzer, lamp etc. can be enumerated.

< initialization action >

Next, the control of initialization action when having dropped into power supply 42 in the door opener 60 of embodiment is described.Figure 39 is the flow chart of the control sequence of the initialization action representing door opener.

As shown in figure 39, if by door opener 60, the control substrate 41 dropping into power supply to make as control part starts, then this control part performs initialize routine.

First, control part confirm sense switch 95a, 95b, temperature sensor 44,45,46,47, the state of door sensor 49 and start initial setting (step S101).

Next, control part confirms sense switch 95a, 95b (in Figure 39, detecting B simply referred to as detection A/), and judges whether it is disconnect/disconnect (step S102).Now, if disconnect/disconnect ("Yes" of step S102), be then the state of Figure 20 (3), thus can confirm that gear wheel 76 is in origin position, terminate initialize routine.

In addition, when sense switch 95a, 95b are not disconnection/disconnections ("No" of step S102), control part confirms sense switch 95a, 95b, and judges whether it is connect/connect (step S103).And, if sense switch 95a, 95b connect/connect (step S103 " be "), be then the state of Figure 20 (1) or figure (5), thus can confirm that in projecting part 61a, 61b, any one is with the outstanding state of maximum overhang H2.Move to next step S104.

In step S104, control part rotates forward CD-ROM drive motor 82, i.e. the direction CD-ROM drive motor 82 given prominence to further of projecting part 61a to the left.

And, when control part detects the overcurrent of motor 82 ("Yes" of step S105), projecting part 61a is with the state of outstanding state, the i.e. Figure 20 (1) of maximum overhang H2, can confirm that gear wheel block 76E abuts with cover block 71 and stopped motor 82 forcibly, and move to step S106.

In addition, when control part does not detect the overcurrent of motor 82 ("No" of step S105), move to step S113, confirm whether sense switch 95b (in Figure 39, be called and detect B) becomes disconnection from connection.And, when sense switch 95b keeps connecting constant ("No" of step S113), repeatedly carry out this step S113, if sense switch 95b disconnects ("Yes" of step S113), then move to step S114 described later.

In addition, in step S105, also can adopt and carry out sense switch 95a, 95b through the stipulated time and whether keep connecting/connect constant judgement, replace the judgement of overcurrent motor 82 whether being detected.

Next, in step S106, control part makes the polarity inversion of power supply, makes the direction of rotation reversion of motor 82 and drives to reverses direction, the i.e. direction of importing projecting part 61a.

Then, control part, after the stipulated time, confirms whether sense switch 95a (in Figure 39, be called and detect A) becomes disconnection (step S107) from connection, if sense switch 95a disconnects ("Yes" of step S107), then move to step S108.In addition, if sense switch 95a does not disconnect ("No" of step S107), then the judgement of this step S107 is repeatedly carried out.

And, if control part confirms that sense switch 95a, 95b are off/connect (step S108), be then the state of Figure 20 (2), and move to step S109.

In step S109, control part confirms that gear wheel 76 is not in origin position and is in the position of engaging with the intermittent driving gear 78a in left side.

Then, control part to reverses direction CD-ROM drive motor 82, and to import projecting part 61a direction, namely drive (step S110) to the side making gear wheel 76 move to initial point direction.

And, control part judges whether sense switch 95b becomes disconnection (step S111) from connection, if sense switch 95b disconnects ("Yes" of step S111), be then the origin position of the state of Figure 20 (3), and move to step S112.In addition, when sense switch 95b does not disconnect ("No" of step S111), step S110 is returned.

In step S112, stop motor 82, terminate initialize routine.In addition, move to step S112 from step S111 also to disconnect afterwards, carry out after the stipulated time at sense switch 95b.

In above-mentioned step S103, when control part confirm as sense switch 95a, 95b be not connect/connect but disconnect/connect, move to above-mentioned step S108.

In addition, in above-mentioned step S103, when control part confirm as sense switch 95a, 95b be not connect/connect but disconnect/connect, move to next step S114.

In step S114, if control part confirms that sense switch 95a, 95b are on/off, be then the state of Figure 20 (4), and move to step S115.

In step S115, control part confirms that gear wheel 76 is not in origin position and is in the position of engaging with the intermittent driving gear 78b on right side.

Then, control part to forward direction CD-ROM drive motor 82, to import right side projecting part 61a direction, namely to make gear wheel 76 move to initial point direction side drive (step S116).

And, control part confirms whether sense switch 95a becomes disconnection (step S117) from connection, if sense switch 95a disconnects ("Yes" of step S117), be then the origin position of the state of Figure 20 (3), and move to step S118.In addition, when sense switch 95a does not disconnect ("No" of step S117), step S116 is returned.

In step S118, stop motor 82, terminate initialize routine.In addition, move to step S118 from step S117 also to disconnect afterwards, carry out after the stipulated time at sense switch 95a.

By the initialization action that above control part carries out, gear wheel 76, not with any one engages in intermittent driving gear 78a, 78b, becomes " initial point scope " (detecting A/B=disconnection/off-state).

Door opening action > on the left of <

Next, the door opening action (left side door opening action) of the door 2a opening left side is described.

Figure 40 is the flow chart of the control sequence representing the left side door opening action that the control part of door opener carries out.User, by operation L.H.flapped door switch 48a, makes control substrate 41 (control part) perform the open door procedure of the door 2a in left side.

First, control part monitors the state of sense switch 95a, 95b, whether is in origin position (detecting A/B whether to disconnect/disconnect) afterwards (step S121), moves to next step 122 at confirmation door opener 60., when not being in origin position, although not shown, but control part moves to step S122 after performing above-mentioned initialize routine in addition.

In step S122, control part monitors whether operate L.H.flapped door switch 48a, when operating L.H.flapped door switch 48a ("Yes" of step S122), moves to step S123.In addition, when not operating L.H.flapped door switch 48a ("No" of step S122), the operation of this step S122 is repeatedly carried out.

In step S123, motor 82 is energized as to forward direction, namely to the polarity making gear wheel 76 rotate from origin position to the direction of engaging with intermittent driving gear 78a by control part.

Then, control part confirms whether sense switch 95b becomes connection (step S124) from disconnection.And control part, when sense switch 95b connects ("Yes" of step S124), moves to step S125.When sense switch 95b access failure ("No" of step S124), repeatedly carry out this step S124.

In step S125, control part makes gear wheel 76 rotate to forward direction, after confirming as the state being in the Figure 20 (2) engaged with the intermittent driving gear 78a in left side, moves to next step S126.

In step S126, control part monitors whether sense switch 95 becomes connection from disconnection.And, when connecting ("Yes" of step S126), become the state of Figure 20 (1), thus control part moves to step S127.In addition, control part, when sense switch 95a access failure ("No" of step S126), carries out this step S126 repeatedly.

Control part confirm left projecting part 61a terminate outstanding action after (step S127), make to execute alive polarity inversion for motor 82, and make motor 82 rotate (step S128) to reverses direction, move to next step S129 afterwards.

In step S129, control part monitors that sense switch 95a is from connecting the situation becoming disconnection.And, if disconnect ("Yes" of step S129), then become the state of Figure 20 (2), thus confirm as in importing action and move to next step S130.In addition, control part is ("No" of step S129) when sense switch 95a does not disconnect, and repeatedly carries out this step S129.

In step S130, control part monitors that sense switch 95b is from connecting the situation becoming disconnection.And, if disconnect ("Yes" of step S130), then become the state of Figure 20 (3), and move to step S131.In addition, control part is ("No" of step S130) when sense switch 95b does not disconnect, and repeatedly carries out this step S130.

In step S131, control part confirms that " initial point scope " (detecting A/B to disconnect/disconnect) returned by gear wheel 76, stops motor 82 (step S132), thus terminates the left side door opening action of the door 2a opening left side.

Door opening action > on the right side of <

Next, the door opening action (right side door opening action) of the door 2b opening right side is described.

Figure 41 is the flow chart of the control sequence representing the right side door opening action that the control part of door opener carries out.User makes control substrate 41 (control part) perform the open door procedure of the door 2b on right side by operation R.H.flapped door switch 48b.

First, control part monitors the state of sense switch 95a, 95b, whether is in origin position (whether detect A/B is disconnect/disconnect) afterwards (step S221), moves to next step 222 at confirmation door opener 60., when not being in origin position, although not shown, but control part moves to step S222 after performing above-mentioned initialize routine in addition.

In step S222, control part monitors whether operate R.H.flapped door switch 48b, and when operating R.H.flapped door switch 48b ("Yes" of step S222), moves to step S223.In addition, when not operating R.H.flapped door switch 48b ("No" of step S222), the operation of this step S222 is repeatedly carried out.

In step S223, even if motor 82 is energized as to reverses direction gear wheel 76 from origin position to the polarity that the direction of engaging with intermittent driving gear 78b rotates by control part.

Then, control part confirms whether sense switch 95a becomes connection (step S224) from disconnection.And control part, when sense switch 95a connects ("Yes" of step S224), moves to step S225.When sense switch 95a access failure ("No" of step S224), repeatedly carry out this step S224.

In step S225, control part makes gear wheel 76 rotate to reverses direction, after confirming as the state being in the Figure 20 (4) engaged with the intermittent driving gear 78b on right side, moves to next step S226.

In step S226, control part monitors whether sense switch 95b becomes connection from disconnection.And, when connecting ("Yes" of step S226), become the state of Figure 20 (5), and control part moves to step S227.In addition, control part, when sense switch 95b access failure ("No" of step S226), carries out this step S226 repeatedly.

Control part is after the projecting part 61b confirming as right side terminates outstanding action (step S227), make to execute alive polarity inversion for motor 82, and make motor 82 rotate (step S228) to forward direction, move to next step S229 afterwards.

In step S229, control part monitors that sense switch 95b is from connecting the situation becoming disconnection.And, if disconnect ("Yes" of step S229), then become the state of Figure 20 (4), thus confirm as in importing action, and move to next step S230.In addition, control part is ("No" of step S229) when sense switch 95b does not disconnect, and repeatedly carries out this step S229.

In step S230, control part monitors that sense switch 95a is from connecting the situation becoming disconnection.And, if disconnect ("Yes" of step S230), then become the state of Figure 20 (3), and move to step S231.In addition, control part is ("No" of step S230) when sense switch 95a does not disconnect, and repeatedly carries out this step S230.

In step S231, control part confirms that " initial point scope " (detecting A/B to disconnect/disconnect) returned by gear wheel 76, stops motor 82 (step S232), and terminates the right side door opening action of the door 2b opening right side.

Next, L.H.flapped door switch 48a when opening the door 2a in left side, each detection action of sense switch 95a, 95b and the spinning movement of motor 82, the sequence of movement of swivel plate 73a and projecting part 61a are described.

The sequential chart of each action of door open switch when Figure 42 is the left side door opening action representing door opener, sense switch and motor.

As shown in figure 42, the door opener 60 during t=0 initializes, and is in origin position.

Before t=ta, operation L.H.flapped door switch 48a makes it to connect.In present embodiment, when L.H.flapped door switch 48a becomes disconnection from connection, to forward direction CD-ROM drive motor 82.Because motor 82 rotates to forward direction, so gear wheel 76 clockwise (CW direction) carries out action, and sense switch 95b becomes connection from disconnection when t=tb.

Make motor 82 to forward direction that is (CW direction) rotation clockwise if continue, then when t=tc, gear wheel 76 engages with intermittent driving gear 78a.Intermittent driving gear 78a and swivel plate 73a starts counterclockwise (CCW direction) and rotates, and projecting part 61a starts outstanding action and starts to open a 2a.

When t=td, sense switch 95a becomes connection from disconnection, can detect projecting part 61a and be in the state before being about to give prominence to maximum overhang H2.Thus, if when t=te, motor 82 is slowed down, and make it when t=tf to stop, then projecting part 61a becomes with the outstanding state of maximum overhang H2.

Afterwards, make when t=tg motor 82 rotate to reverses direction, make gear wheel 76 (CCW direction) rotation counterclockwise, thus start to import projecting part 61a.

When t=th, sense switch 95a becomes disconnection from connection, imports projecting part 61a further when t=tj, and terminates engaging of intermittent driving gear 78a and gear wheel 76.

When t=tk, sense switch 95b becomes disconnection from connection, and can confirm that gear wheel 76 is near origin position.Thus, if make motor 82 stop after the stipulated time to t=tm, then origin position returned by gear wheel 76.

As mentioned above, door opener 60 is terminated to the door opening action of the door 2a in left side.

Next, to when opening the door 2b on right side, R.H.flapped door switch 48b, each detection action of sense switch 95a, 95b and the spinning movement of motor 82, the sequence of movement of swivel plate 73b and projecting part 61b be described.

The sequential chart of each action of door open switch when Figure 43 is the right side door opening action representing door opener, sense switch and motor.

As shown in figure 43, the door opener 60 during t=0 initializes, and is in origin position.

Before t=ta, operate R.H.flapped door switch 48b and make it to connect.In present embodiment, when R.H.flapped door switch 48b becomes disconnection from connection, to reverses direction CD-ROM drive motor 82.Because motor 82 rotates to reverses direction, so gear wheel 76 counterclockwise (CCW direction) carries out action, and sense switch 95a becomes connection from disconnection when t=tb.

Make motor 82 to reverses direction that is (CCW direction) rotation counterclockwise if continue, then when t=tc, gear wheel 76 engages with intermittent driving gear 78b.Intermittent driving gear 78b and swivel plate 73b starts clockwise (CW direction) and rotates, and projecting part 61b starts outstanding action and starts to open a 2b.

When t=td, sense switch 95b becomes connection from disconnection, can detect projecting part 61b and be about to the outstanding state of maximum overhang H2.Thus, if when t=te, motor 82 is slowed down, and make it when t=tf to stop, then projecting part 61b becomes with the outstanding state of maximum overhang H2.

Afterwards, make when t=tg motor 82 rotate to forward direction, make gear wheel 76 (CW direction) rotation clockwise, thus start to import projecting part 61a.

When t=th, sense switch 95b becomes disconnection from connection, imports projecting part 61b further when t=tj, thus terminates engaging of intermittent driving gear 78b and gear wheel 76.

When t=tk, sense switch 95a becomes disconnection from connection, and can confirm that gear wheel 76 is near origin position.Thus, if make motor 82 stop after the stipulated time to t=tm, then origin position returned by gear wheel 76.

As mentioned above, door opener 60 is terminated to the door opening action of the door 2b on right side.

Door opener 60 according to the present embodiment and possess the refrigerator 1 of this door opener 60, can play following effect.

According to the present embodiment, can open two film gate 2a, 2b of opposite opened electrically, the unfolding mode of door 2a, 2b smoothly and do not feel suddenly.In addition, the difference of the opening time caused by the number of the amount of food of the inner side of door 2a, 2b accommodation is less, thus stably can carry out door opening action.

In addition, according to the present embodiment, door opener 60 has nothing to do with the number of the amount of food held in the inner side of door 2a, 2b, door opening action can be started to carry out afterwards until the T outstanding actuation time reaching maximal rate is set to more than 0.3 second less than 0.7 second.Thus, door opening action is not too fast and feel unexpected situation, and door opening action is slow only, and door opening action is suitable and natural.

In addition, according to the present embodiment, even if when door 2a, 2b are light-duty, detect user to after the operation of L.H.flapped door switch 48a, R.H.flapped door switch 48b outstanding actuation time T also can not less than 0.3 second.Thus, acceleration during door opening action is little, also can not apply impulsive force to the food being contained in door compartment 13.

In addition, according to the present embodiment, the door 2a in left side and the door 2b on right side can be opened accordingly with the direction of rotation of a motor 82.

Specifically, make motor 82 rotate to forward direction and the intermittent driving gear 78a in gear wheel 76 and left side is rotated, make the projecting part 61a (the first projecting part) in left side give prominence to and the door 2a in left side can be opened thus.

In addition, make motor 82 rotate to reverses direction and the intermittent driving gear 78b on gear wheel 76 and right side is rotated, make the projecting part 61b (the second projecting part) on right side give prominence to and the door 2b on right side can be opened thus.

In addition, according to the present embodiment, owing to the open angle of door 2a, the 2b caused by door opener 60 being set as than large to the angle worked with the door closer of power on the direction closing this 2a, 2b, so the door opening action of door opener 60 reliably can be carried out.

In addition, according to the present embodiment, by making motor 82 rotate with certain rotary speed, projecting part 61a, 61b can be made to carry out the motion approximate with motion with uniform acceleration and give prominence to.Therefore, according to the present embodiment, do not need the special speeds control of motor 82, and the door opening action of natural impression can be carried out with the simple and structure of cheapness.

In addition, according to the present embodiment, by the maximum tangential velocity from hinge 17a, 17b door end farthest of door 2a, 2b is set as 700 ~ 1100mm/sec, neither too fast suitable door opening action slow only can be realized.

In addition, according to the present embodiment, because projecting part 61 is configured to, only to projected direction action, stand fast, so there is no need for the space retreated for projecting part 61, thus miniaturization can be realized.

In addition, according to the present embodiment, after retreating owing to making the projecting part 61a given prominence to, then another projecting part 61b is made to give prominence to, so from the past while to carry out the outstanding structure of the retrogressing of a projecting part and another projecting part different, less to the load of the driving mechanisms such as motor.Thus, according to the present embodiment, with structure comparison in the past, the efficiency of driving mechanism is high, and the waste of energy is little.

In addition, according to the present embodiment, due to the actuating quantity of projecting part 61a, 61b can be increased in the scope in limited space, so the opening action of door 2a, 2b is stablized.

In addition, according to the present embodiment, switch lever 96a, 96b associated by cam part 99 that utilization and gear wheel 76 rotate integrally, sense switch 95a, 95b, can detect the overhang of projecting part 61a, 61b.Therefore, according to the present embodiment, the switch of reliable overhang can be detected with simple structure construction.

In addition, according to the present embodiment, when projecting part 61a, 61b being imported in shell 62, the thinner wall section 70 being located at front end component 64a, 64b of the front end of projecting part 61a, 61b blocks opening 63a, the 63b of the shell 62 inserted for projecting part 61a, 61b.Therefore, according to the present embodiment, can anti-sealing, dust enter in shell 62 from outside.In addition, because front end component 64a, 64b are formed with the material of softness, so impact when projecting part 61a, 61b carry out outstanding action and abut with door 2a, 2b can be reduced.

Above, embodiments of the present invention are illustrated, but the present invention is not limited to above-mentioned embodiment, can implements with various form.

Next, to when utilizing projecting part 61a, 61b to carry out the door opening action of 2a, 2b, accept from projecting part 61a, 61b pushing force, the suitable shape of the bearing surface of being located at 2a, 2b is described.

Figure 44 (a) and Figure 44 (b) is the action specification figure of projecting part when abutting with the plane bearing surface of refrigerating-chamber door.Figure 45 (a) and Figure 45 (b) is the action specification figure of projecting part when abutting with the bearing surface be made up of the side face of semicolumn of refrigerating-chamber door.

As shown in Figure 44 (a), after closedown door 2a, the bearing surface 93 opposed with projecting part 61a has the plane orthogonal with the projected direction of projecting part 61a.

Door opener 60 starts to carry out door opening action, and the front end of projecting part 61a becomes the state contacted with bearing surface 93.Now, because bearing surface 93 is orthogonal with projecting part 61a, so outstanding power P is orthogonal with bearing surface 93, become compression stress relative to projecting part 61a.

As shown in Figure 44 (b), at door 2a open angle θ _dstate under, bearing surface 93 is relative to projecting part 61a tilt angle theta _d.Outstanding power P is broken down into normal direction component P1 and tangential direction component P2 thus.Wherein tangential direction component P2 becomes bending moment M relative to projecting part 61a, thus projecting part 61a produces bending stress.In addition, also consider following situation, that is, the distortion because of bending moment M between web 65a and guide rail 66a, pushing force increases, thus frictional resistance load increases.

As shown in Figure 45 (a), after closedown door 2a, the bearing surface 93 opposed with projecting part 61a is formed by the side face of semicolumn.

If door opener 60 starts to carry out door opening action, the front end of projecting part 61a contacts with bearing surface 93, then bearing surface 94 is orthogonal with bearing surface 94 with the outstanding power P of the contact position of projecting part 61a, thus identical with the bearing surface 94 be made up of plane shown in Figure 44 (a), become compression stress relative to projecting part 61a.

As shown in Figure 45 (b), because the side face of bearing surface 94 by semicolumn is formed, even if so door 2a opens and tilt angle theta _d, the direction of outstanding power P is also orthogonal with bearing surface 94.Therefore, the power being passed to bearing surface 94 from projecting part 61a becomes compression stress relative to projecting part 61a, different from the situation shown in Figure 44 (b), does not produce the bending moment of tangential direction component.Thus, projecting part 61a does not produce bending stress, and does not produce distortion between web 65a and guide rail 66a.Therefore, for door opener 60, frictional resistance load does not increase, thus reliability improves.

In addition, in above explanation, the situation of the door 2a opening left side is illustrated, but for the situation of the door 2b on the right side of opening, can be configured to identical except symmetrical with the door 2a in left side, identical effect can be played.

Next, the structure example being suitable for the door opener that anti-sealing enters is described.

Figure 46 is the top view of the door opener with waterproof rib.In addition, Tu46Zhong, different from Fig. 8, illustrate the state eliminating gear wheel 76 and intermittent driving gear 78a, 78b.

As shown in figure 46, this door opener 60 can will be divided into the first scope 105, second scope 106 and the 3rd scope 107 in shell 62.

First scope 105 is action, the slewing area of projecting part 61a, the web 65a in the left side of door opener 60 and swivel plate 73a, for convenience of description, employs hatching.

3rd scope 107 is action, the slewing area of projecting part 61b, the web 65b on the right side of door opener 60 and swivel plate 73b, for convenience of description, employs hatching.

Second scope 106 is formed between above-mentioned first scope 105 and above-mentioned 3rd scope 107, be configuration connected by not shown electric wiring motor 82, sense switch 95a, 95b and wiring space 81 scope.

In addition, this door opener 60 is to be formed with waterproof rib 55a and waterproof rib 55b by the mode divided in shell 62.

Waterproof rib 55a is to divide the mode of the first scope 105 and the second scope 106, and its one end is connected with before shell 62, and the other end is connected with the back side of shell 62.

In addition, waterproof rib 55b is to divide the mode of the second scope 106 and the 3rd scope 107, and its one end is connected with before shell 62, and the other end is connected with the back side of shell 62.

Owing to being formed with opening 63a, 63b of carrying out outstanding action for projecting part 61a, 61b at shell 62, even if so when the liquid such as water enter the first scope 105 or the 3rd scope 107 from this opening 63a, 63b, waterproof rib 55a, 55b also can be utilized to hinder this liquid to enter the second scope 106.

That is, according to this door opener 60, due to liquid can be prevented to comprising motor 82, the second scope 106 of sense switch 95a, 95b and wiring space 81 enters, so reliably can prevent electric wiring short circuit because of liquid, thus improves reliability.

Next, the variation of web 65a and swivel plate 73a is described.

Figure 47 is the top view of the variation representing swivel plate and web.Figure 48 (a) to Figure 48 (f) is the swivel plate of variation and the action specification figure of web.In addition, Figure 48 (a) in Figure 48 (f), symbol ra to symbol rq represent tooth 201A ~ 201P of being located at web 65a be located at swivel plate 73a tooth 202a ~ tooth 202q engage spacing radius of circle.

As shown in figure 47, around swivel plate 73a, be formed with the tooth 202a ~ 202q (adding up to the number of teeth 14) engaged with the tooth 201A ~ 201P of web 65a (adding up to the number of teeth 13).

Tooth 202a ~ the 202q of swivel plate 73a in the situation of overlooking of Figure 47 centered by the 74a of swivel plate center to dextrorotation, except tooth 102b, be formed as radius and expand gradually from this swivel plate center 74a.

More specifically, as shown in Figure 48 (a) to Figure 48 (f), when the engagement spacing radius of circle of the tooth 202a to tooth 202q being located at swivel plate 73a is set to ra to rq, be set as the relational expression meeting ra=rb < rc < rd < re < rf < rg < rh < rj < rk < rm < rn < rp < rq.

Namely, in swivel plate 73a shown in above-mentioned Figure 12, the relation of engagement spacing radius of circle ra and engagement spacing radius of circle rb adjacent with it becomes ra < rb, relative to this, as shown in Figure 48 (a) and Figure 48 (b), in the swivel plate 73a of variation, ra=rb.That is, due to ra=rb, so the spacing radius of circle being located at tooth 202a, the tooth 202b of swivel plate 73a and tooth 202c is equal.

In addition, as shown in figure 47, the interval being located at the tooth 201A to tooth 201B of web 65a is not formed as taper.

Next, the swivel plate 73a of variation and the action of web 65a are described.

As shown in Figure 48 (a), swivel plate 73a is in origin position.As mentioned above, operate L.H.flapped door switch 48a by user and rotate counterclockwise making swivel plate 73a.

As shown in Figure 48 (b), tooth 201C the engaging between tooth 202c, 202d at swivel plate 73a of web 65a, web 65a forwards (on the left of the paper of Figure 48, identical in following Figure 48) is mobile.Thus, projecting part 61a starts to carry out outstanding action.That is, start to open a 2a.

As shown in Figure 48 (c), swivel plate 73a further rotates, tooth 201F the engaging between tooth 202f, 202g at swivel plate 73a of web 65a, and web 65a forwards moves further.

As shown in Figure 48 (d), swivel plate 73a further rotates, tooth 201J the engaging between tooth 202j, 202k at swivel plate 73a of web 65a, and web 65a forwards moves further.

As shown in Figure 48 (e), swivel plate 73a further rotates, tooth 201N the engaging between tooth 202n, 202p at swivel plate 73a of web 65a, and web 65a forwards moves further.

As shown in Figure 48 (f), swivel plate 73a further rotates, and is positioned at and leans on the tooth 202q of the periphery of swivel plate 73a to push the tooth 201P of the rear end being positioned at web 65a toward the front most.Web 65a forwards moves further and in the mode becoming maximum overhang H2 (with reference to Figure 25), projecting part 61a is given prominence to.The outstanding speed of projecting part 61a becomes maximal rate, stops afterwards.

And as mentioned above, swivel plate 73a rotates to reverses direction (clockwise), returns the origin position represented in Figure 48 (a) via the state of Figure 48 (f) to Figure 48 (b).

Figure 49 (a) of following reference is the chart of when associatedly representing with the swivel plate of the variation of Figure 47 and web that projecting part is given prominence to, speed and the relation of time, and Figure 49 (b) is the chart of the relation representing power and time.In addition, in Figure 49 (a) and Figure 49 (b), t=0 represents the state of Figure 48 (a), is the moment that projecting part 61a starts action.T is that projecting part 61a reaches maximum speed or maximum angular velocity omega _dmaxtill time [T=(t2-t1)] (wherein, t1 is the time till the state becoming Figure 48 (a), t2 be become Figure 48 (f) till time).

As shown in Figure 49 (a), from the time t1 to the time t4 of state becoming Figure 48 (b) of state becoming Figure 48 (a), projecting part 61a carries out the movement at the uniform velocity of speed Va.This is because, in the interval of tooth 201A to tooth 201B of web 65a not being formed as taper, tooth 202a, the tooth 202b of the swivel plate 73a that spacing radius of circle is equal and tooth 202c engage.And the outstanding speed of projecting part 61a is equal with the Va shown in above-mentioned formula 2.

Afterwards, before the time t2 of state becoming Figure 48 (f), projecting part 61a carries out the accelerated motion approximate with motion with uniform acceleration.The speed Vq of projecting part 61a is the tangential direction speed of the part of spacing radius of circle rq, equal with the Vq shown in above-mentioned formula 3.

As shown in Figure 49 (b), from the time t1 to the time t4 of state becoming Figure 48 (b) of state becoming Figure 48 (a), the outstanding power of projecting part 61a is constant with maximum Pa.Afterwards, before the time t2 of state becoming Figure 48 (f), the outstanding power of projecting part 61a is increased to rq from rc and reduces along with the spacing radius of circle of the swivel plate 73a engaged with web 65a.And the outstanding power of projecting part 61a has the same minimizing trend becoming minimum of a value Pq when time t2.

Namely, the action of projecting part 61a possesses first interval and the second interval continuous print, the outstanding speed characteristics of flexing and outstanding force characteristic, wherein, first interval is speed is V and the less but same interval maintaining the time t1 to t4 of maximum outstanding power Pa from the start time of outstanding action, and the second interval is that speed increases and the outstanding power interval of time t3 to time t2 of reducing in time in time.

The door opener 60 of the swivel plate 73a and web 65a that possess such variation has following feature, that is, the enabling power of door 2a, 2b is at the θ starting to open _dmaximum time=0 (with reference to Figure 32).Therefore, if maintain maximum outstanding power when the beginning of the outstanding action of projecting part 61a from time t1 to time t4, then have and peel off door spacer 15 and reliably carry out the effect of door opening action.In addition, because supposition door 2a in the present embodiment arranges rotatable spacer 18, so also the tensile force for making rotatable spacer 18 swing can be guaranteed, thus the effect of reliably carrying out door opening action is had.

In above-mentioned embodiment, in door 2a, 2b, 3a, 4a, 5a, 6a of refrigerator 1, the door opener 60 of air exercise enabling 2a, 2b is illustrated, but the present invention is not limited thereto, and also can open door that up and down or left and right adjoins each other each other.In addition, above-mentioned door is not limited to opposite opened, also can be drawing and pulling type door.

In addition, in above-mentioned embodiment, as the equipment possessing door opener 60, be illustrated for refrigerator 1, if but the present invention has the multiple doors adjoined each other, then and also can be electrical equipment, furniture etc. except refrigerator 1.

In above-mentioned embodiment, as the motor 82 that its axial rotary forward and reverse direction rotates, there to be brush direct current motor to be illustrated, if but the present invention is the motor rotated in forward and reverse direction, is not particularly limited, such as, also can uses impulse motor etc.

Claims (5)

1. a door opener, is characterized in that, possesses:

The motor that can rotate in forward and reverse direction;

The rotation of said motor is slowed down and transmits the reducing gear train of the driving force of said motor;

The gear wheel that can rotate in forward and reverse direction via the driving force of above-mentioned reducing gear train transmission said motor;

Engage with above-mentioned gear wheel in the first angular range of above-mentioned gear wheel and the first intermittent driving gear rotated;

Engage with above-mentioned gear wheel in the second angular range different from above-mentioned first angular range and the second intermittent driving gear rotated;

Also pass through towards first outstanding pressing from above-mentioned first intermittent driving gear transmission of drive force and open first projecting part of above-mentioned first; And

Also pass through towards second outstanding pressing from above-mentioned second intermittent driving gear transmission of drive force and open second projecting part of above-mentioned second,

Carry out the outstanding action of any one projecting part in the first projecting part or the second projecting part accordingly with the direction of rotation of said motor, thus open wide above-mentioned first and above-mentioned second.

2. door opener according to claim 1, is characterized in that,

Actuation time after above-mentioned first projecting part starts to carry out outstanding action till the outstanding speed of above-mentioned first projecting part becomes maximal rate, and

Actuation time after above-mentioned second projecting part starts to carry out outstanding action till the outstanding speed of above-mentioned second projecting part becomes maximal rate,

Be all more than 0.3 second and less than 0.7 second.

3. door opener according to claim 1, is characterized in that,

To the door closer with the torque to closing direction in above-mentioned first and above-mentioned second scope also possessing separately the first angle before door full cut-off,

Above-mentioned first projecting part or above-mentioned second projecting part is utilized to open the angle of above-mentioned first or above-mentioned second larger than above-mentioned first angle.

4. door opener according to claim 1, is characterized in that, possesses:

Above-mentioned first projecting part or above-mentioned second projecting part maintain the first interval of outstanding speed when starting and outstanding power consistently after starting to carry out outstanding action; And

With this second interval that first interval continuous, above-mentioned outstanding speed increases in time and above-mentioned outstanding power reduces in time.

5. an equipment, is characterized in that,

Possesses the door opener according to any one of Claims 1 to 4.