CN208567263U

CN208567263U - Throttle setting

Info

Publication number: CN208567263U
Application number: CN201821140983.9U
Authority: CN
Inventors: 宫下敏臣
Original assignee: Nidec Sankyo Corp
Current assignee: Nidec Sankyo Corp
Priority date: 2017-07-25
Filing date: 2018-07-18
Publication date: 2019-03-01
Anticipated expiration: 2028-07-18
Also published as: JP6908459B2; JP2019027608A; CN109297237B; CN109297237A

Abstract

A kind of throttle setting inhibits the limiting unit damage of the rotating range of limitation transmission gear.Throttle setting has driving source, the opening and closing member being opened and closed by the driving force of driving source, the driving force of driving source is output to the output gear of opening and closing member, the driving force of driving source is passed to the transmission gear of output gear, the limiting unit (15) for limiting the rotating range of transmission gear by contacting transmission gear, it is provided with limiting unit and stores the incorporating section (14) of output gear and transmission gear, transmission gear is configured to rotate in the rotating range from first position to the second position and by limiting unit limitation rotating range, limiting unit has the extended portion (15a) that the length from the transmission gear direction more orthogonal than with direction F1 by the length of the direction F1 of power is long and extends to the direction side F1, the front end (62) of the direction side F1 of extended portion on the F1 of direction positioned at limiting unit and transmission gear Contact position (41) extended line on.

Description

Throttle setting

Technical field

The utility model relates to throttle settings.

Background technique

Currently, using various throttle settings.In this throttle setting, usually using various gears, but some is using limit The structure of the rotating range of gear processed.For example, patent document 1 discloses a kind of throttle setting such as flowering structure: being set to by making The protrusion of housing section and the protrusion of holding member abut, and the rotation angle for driving gear is limited in 360 °.

Existing technical literature

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2012-202574 bulletin

Utility model content

Utility model technical problem to be solved

But the existing air door of the rotating range of limiting gear the throttle setting as disclosed in patent document 1 In device, to the limiting unit applied force of the rotating range of limiting gear, which is possible to be damaged.

Especially the driving force of driving source is output to the output gear of opening and closing member, passes to the driving force having The transmission gear of output gear, by contact transmission gear limit transmission gear rotating range limiting unit structure in, Need to inhibit the damage of the limiting unit.

Therefore, the purpose of this utility model is that, inhibit the limiting unit limited the rotating range of transmission gear Damage.

Technical solution used by for solving the problems, such as

A kind of throttle setting of the utility model is characterized in that having: driving source；Opening and closing member, the opening and closing member It is opened and closed by the driving force of the driving source；Output gear, the output gear export the driving force of the driving source To the opening and closing member；The driving force of the driving source is passed to the output gear by transmission gear, the transmission gear；Limit Portion processed, the limiting unit limit the rotating range of the transmission gear by contacting the transmission gear；And incorporating section, institute It states incorporating section and is provided with the limiting unit, and the storage output gear and the transmission gear, the transmission gear are configured to It is rotated in the rotating range from first position to the second position and using limiting unit limitation rotating range, the limit Portion processed has an extended portion, the length ratio in the direction from the transmission gear capacity of the extended portion with from the transmission gear The length in the orthogonal direction in the direction of capacity is long, and the extended portion is prolonged to from the direction side of the transmission gear capacity It stretches, the front end of the direction side from the transmission gear capacity of the extended portion is in the side from the transmission gear capacity Upwards on the extended line with the contact position of the transmission gear of the limiting unit.

According to present aspect, limiting unit has to the extended portion extended from the direction side of transmission gear capacity, extended portion From the front end of the direction side of transmission gear capacity positioned at limiting unit and transmitting on the direction from transmission gear capacity On the extended line of the contact position of gear.When limiting unit has the structure of extended portion, if it is front end from transmission gear Structure on the direction of capacity on the extended line of contact position, then be not located at the extension of the contact position with the front end Structure on line is compared, and the power received from transmission gear can be effectively accepted.Therefore, it can effectively be held by the extended portion The power received from transmission gear is connect, so as to inhibit the damage of limiting unit.

A kind of throttle setting of the utility model is characterized in that having: driving source；Opening and closing member, the opening and closing member It is opened and closed by the driving force of the driving source；Output gear, the output gear export the driving force of the driving source To the opening and closing member；The driving force of the driving source is passed to the output gear by transmission gear, the transmission gear；Limit Portion processed, the limiting unit limit the rotating range of the transmission gear by contacting the transmission gear；And incorporating section, institute It states incorporating section and is provided with the limiting unit, and the storage output gear and the transmission gear, the transmission gear are configured to It is rotated in the rotating range from first position to the second position and using limiting unit limitation rotating range, the limit Portion processed has first structure portion and the second structural portion, and the first structure portion contacts with the transmission gear, and to pass through It contacts and extends from the different direction side of the direction side of the transmission gear capacity, second structure with the transmission gear Portion to contacted by the first structure portion with the transmission gear from the direction side of the transmission gear capacity extend.

The limiting unit of present aspect have to by and transmission gear contact from the direction side of transmission gear capacity not The first structure portion that same direction side extends, and have and contacted to by first structure portion with transmission gear from transmission gear The second structural portion that the direction side of capacity extends.Therefore, the power for being applied to limiting unit can be extended to first structure portion Direction side dispersion, and the power for being applied to limiting unit can be effectively accepted using the second structural portion.Therefore, it is able to suppress limitation The damage in portion.

The throttle setting of the utility model is characterized in that the limiting unit is the periphery by contacting the transmission gear Portion and the structure for limiting the rotation of the transmission gear.

The limiting unit of present aspect is the structure for limiting the rotation of transmission gear by contacting the peripheral part of transmission gear.Cause This is easy big and is rigidly formed limiting unit because limiting unit can be formed in the outside of transmission gear.

The throttle setting of the utility model is characterized in that the transmission gear has contact corresponding with the limiting unit Face.

According to present aspect, because transmission gear has contact surface corresponding with limiting unit, it is easy to connect with limiting unit face Touching or line contact, are able to suppress the case where converging with the power for being applied to limiting unit caused by limiting unit point contact.

The throttle setting of the utility model is characterized in that the limiting unit is connected with the wall portion of the incorporating section.

The limiting unit of present aspect is connected with the wall portion of incorporating section, therefore, can also be distributed to the power for being applied to limiting unit The wall portion of incorporating section, so that the wall portion for being contained portion is effectively accepted.

The throttle setting of the utility model is characterized in that the wall portion is the periphery wall of the incorporating section.

Because the wall portion is the periphery wall of the incorporating section, it is possible to avoid alternatively forming wall portion.

The throttle setting of the utility model is characterized in that the limiting unit is connected with multiple positions of the wall portion.

Multiple positions of the wall portion of the limiting unit and incorporating section of present aspect are connected, thus it is possible to which limiting unit will be applied to Power is distributed to multiple positions of the wall portion of incorporating section, to effectively be accepted by multiple position.

The throttle setting of the utility model is characterized in that the limiting unit is rib shape.

The limiting unit of present aspect is rib shape, therefore, is able to suppress the formation with limiting unit and the change of incorporating section that generates Shape.

The throttle setting of the utility model is characterized in that, the limiting unit is with the contact position of the transmission gear Deviate the position of the end of the limiting unit.

When the end applied force to limiting unit, limiting unit is particularly easy to damage.But according to present aspect, limiting unit Contact position with transmission gear is the position for deviateing the end of limiting unit.Therefore, the damage of limiting unit can be effectively inhibited.

The throttle setting of the utility model is characterized in that the limiting unit and the incorporating section are integrally formed.

The limiting unit of present aspect is therefore the structure integrally formed with incorporating section is able to easily form limiting unit.

The throttle setting of the utility model is characterized in that having rotation gear, the rotation gear have contact portion, and with The transmission gear common rotary axis, and the driving force of the driving source is passed into the transmitting tooth via the contact portion Wheel, the transmission gear is driven gear, and the transmission gear has by contact portion, the contact portion and described is connect by contact portion Touching, it is described that the contact portion capacity is passed through by contact portion, so that the transmission gear and the rotation gear are interlocked and are rotated, when The contact portion it is described rotation gear rotating range a part i.e. interlock range in moving in rotation when, the contact portion and It is described to be contacted by contact portion, it is described when contact portion moving in rotation within the scope of the non-gearing for deviateing the gearing range Contact portion is released from described by the contact of contact portion, and the throttle setting has press section, and the press section is directed to the biography Gear is passed in the non-rotation interlocked in range, prevents the corotation because caused by assigning load.

It is to interlock and connecing with rotation gear having with the rotation gear and transmission gear of transmission gear common rotary axis In contact portion and the structure of the driven gear rotated within the scope of the gearing of contact portion contact, when contact portion is in non-gearing range inward turning When transfer is dynamic, transmission gear can corotation sometimes.But according to present aspect, because having for transmission gear in non-gearing range Interior rotation prevents the press section of the corotation because caused by assigning load, so being able to suppress when contact portion is in non-gearing range When moving in rotation the case where transmission gear corotation.

The throttle setting of the utility model is characterized in that, the structure of the transmission gear are as follows: has with the transmitting A part of concentric circles on the basis of the rotary shaft of gear is equipped with the engaging section of tooth, by making the engaging section and the output gear The driving force of the driving source is transmitted to the output gear by the tooth engagement of wheel.

The structure of the transmission gear of present aspect are as follows: there is one of concentric circles on the basis of by the rotary shaft of the transmission gear The driving force of driving source is transmitted to defeated by the engaging section that part is equipped with tooth by making the tooth engagement of the engaging section and output gear Gear out.By the transmission gear with this structure, it is able to easily form the engaging section and output gear for not making transmission gear The state of the tooth engagement of wheel can easily be such that output gear stops in specified position.

The throttle setting of the utility model is characterized in that having the reinforcement part reinforced the limiting unit.

According to present aspect, because having the reinforcement part for reinforcing limiting unit, can particularly effectively inhibit to limit The damage in portion processed.

The throttle setting of the utility model is characterized in that, at least one in the part of two faces intersection of the limiting unit It is a to be chamfered.

When limiting unit has corner, limiting unit is easy to be damaged from the corner, but according to present aspect, even if in limiting unit In the case where with corner, because corner is chamfered, the damage of limiting unit can be also effectively inhibited.

(utility model effect)

The throttle setting of the utility model is able to suppress the damage of the limiting unit limited the rotating range of transmission gear Wound.

Detailed description of the invention

Fig. 1 is the approximate stereogram for indicating to have an example of the device of the throttle setting of the utility model embodiment 1.

Fig. 2 is the approximate stereogram for indicating the throttle setting of the utility model embodiment 1.

Fig. 3 is the decomposition approximate stereogram for indicating the throttle setting of the utility model embodiment 1.

Fig. 4 is the skeleton diagram for indicating the driving force transmission device of throttle setting of the utility model embodiment 1.

Fig. 5 is the approximate stereogram for indicating the driving force transmission device of throttle setting of the utility model embodiment 1.

Fig. 6 is the outline for indicating the exploded of the driving force transmission device of throttle setting of the utility model embodiment 1 Perspective view.

Fig. 7 is the skeleton diagram for indicating the driving force transmission device of throttle setting of the utility model embodiment 1.

Fig. 8 is the skeleton diagram for indicating the driving force transmission device of throttle setting of the utility model embodiment 1.

Fig. 9 is that the outline of a part of the driving force transmission device of throttle setting for indicating the utility model embodiment 1 is vertical Body figure.

Figure 10 is to indicate that the outline of a part of the driving force transmission device of throttle setting of the utility model embodiment 1 cuts open View.

Figure 11 is the perspective view for indicating the transmission gear of throttle setting of the utility model embodiment 1.

Figure 12 is the top view for indicating the transmission gear of throttle setting of the utility model embodiment 1.

Figure 13 is the bottom view for indicating the transmission gear of throttle setting of the utility model embodiment 1.

Figure 14 is the perspective view for indicating the transmission gear of throttle setting of the utility model embodiment 1.

Figure 15 is each gear in the driving force transmission device for illustrating the throttle setting of the utility model embodiment 1 The skeleton diagram of movement, each figure on upper layer omit the diagram of limiting unit.

Figure 16 (a)~Figure 16 (c) is the skeleton diagram for illustrating the throttle setting of the utility model embodiment 1.

Figure 17 is the skeleton diagram for indicating the driving force transmission device of throttle setting of the utility model embodiment 2.

Figure 18 is the outline for indicating the exploded of the driving force transmission device of throttle setting of the utility model embodiment 2 Perspective view.

Figure 19 is the skeleton diagram for indicating the driving force transmission device of throttle setting of the utility model embodiment 2.

Figure 20 is the skeleton diagram for indicating the driving force transmission device of throttle setting of the utility model embodiment 2.

Figure 21 is the skeleton diagram for indicating the driving force transmission device of throttle setting of the utility model embodiment 2.

Figure 22 is the skeleton diagram for indicating the driving force transmission device of throttle setting of the utility model embodiment 2.

Figure 23 is that the outline of a part of the driving force transmission device of throttle setting for indicating the utility model embodiment 3 is vertical Body figure.

Figure 24 (a)~Figure 24 (c) is to indicate that the driving force of the throttle setting of 3~embodiment of the utility model embodiment 5 passes The skeleton diagram of a part of delivery device.

Figure 25 is the outline of the movement of each gear in the driving force transmission device for illustrating the throttle setting of reference example Figure.

(symbol description)

1 ... throttle setting, 2 ... driving force transmission devices, 3 ... first frames, 4 ... second frames, 5 ... opening-closing plates, 6 ... open Closing plate, 7 ... opening portions, 8 ... opening portions, 9 ... gear trains, 10 ... gears, 11 ... gears, 12 ... gears, 13 ... gears, 14 ... receive Receive portion, the face of the side of limiting unit 15, the face of side 14b ... opposite with face 14a, 15 ... limiting units, 15a ... is arranged in 14a ... First limiting unit, 15a ' ... first structure portion, the second structural portion of 15a " ..., the second limiting unit of 15b ..., 15b ' ... first structure Portion, the second structural portion of 15b " ..., the first limiting unit of 15c ..., the second limiting unit of 15d ..., 15e ... limiting unit, 15f ... limiting unit, 16 ... rotary shafts, 17 ... gears, 18 ... first gears, 19 ... large diameter gear portions, 20 ... small-diameter gear portions, 21 ... second gears, 22 ... large diameter gear portions, 23 ... small-diameter gear portions, 24 ... third gears, 25 ... large diameter gear portions, 26 ... small-diameter gear portions, 27 ... Tooth, 28 ... teeth, 29 ... teeth, 30 ... rotary shafts, 31 ... teeth, 32 ... teeth, 33 ... rotary shafts, 34 ... contact portions, 35 ... by contact portion, 36 ... press sections, 37 ... rotary shafts, the peripheral part of 38 ... gears 12, the side of 39 ... limiting units 15, the end of 40 ... limiting units 15 Portion, 41 ... contact positions, 42 ... wall portions, 42a ... wall portion, 42b ... wall portion, 42c ... wall portion, 43 ... reinforcement parts, 43a ... reinforce Portion, 43b ... reinforcement part, 43c ... reinforcement part, 44 ... protrusions, 45 ... recess portions, 46 ... engaging sections, 47 ... corners, 48 ... steppings electricity Machine, the outer peripheral surface of 49 ... gears 12,50 ... ribs, 51 ... major diameter arc sections, 52 ... path arc sections, 53 ... flat parts, 54 ... angles Portion, 55 ... relief portion, 56 ... mounting surfaces, the face of 56 side of mounting surface of 57 ... flat parts 53,58 ... relief portion, 59 ... circumferential parts, 60 ... abutting parts, 61 ... planar portions, 62 ... front ends, 101 ... refrigerators, 102 ... refrigerating chambers, 103 ... freezing chambers, 104 ... vegetables Room, 105 ... coolers, 106 ... pressure fan, 107 ... throttle settings, 108 ... throttle settings, 210 ... gears, 211 ... gears, 212 ... gears, 213 ... gears, 260 ... accesses, AF ... air-flow, directions E ... different from the direction of capacity, F1 ... capacity Direction, F2 ... accept receive power direction, the direction of F3 ... capacity, the direction of F4 ... capacity, F5 ... capacity Direction, the direction of F6 ... capacity, L1 ... distance, L2 ... distance, S ... cannot effectively accept the power received from transmission gear Region

Specific embodiment

Hereinafter, being illustrated to the throttle setting 1 of an embodiment of the utility model.

[embodiment 1] (Fig. 1~Figure 15)

Firstly, being illustrated to the summary of the throttle setting 1 of embodiment 1.

Fig. 1 is an example i.e. skeleton diagram (office of refrigerator 101 for indicating to have the device of the throttle setting 1 of the present embodiment Portion's perspective view).

In addition, Fig. 2 and Fig. 3 are the skeleton diagrams of the throttle setting 1 of the present embodiment.Wherein, Fig. 2 shows relative to driving force Transfer device 2 is mounted with the state of the first frame 3 and the second frame 4.On the other hand, Fig. 3 is shown transmits relative to driving force Device 2 removes the state after the first frame 3 and the second frame 4.

As shown in Figure 1, the throttle setting 1 of the present embodiment can be used for refrigerator 101 etc..The throttle setting for having the present embodiment 1 refrigerator shown in FIG. 1 101 has refrigerating chamber 102, freezing chamber 103 and vegetable compartment 104.The structure of refrigerator 101 are as follows: by sending The cold air generated in cooler 105 is formed air-flow AF by blower 106, can be via throttle setting 1, other throttle settings 107 And air-flow AF is imported refrigerating chamber 102, freezing chamber 103 and vegetable compartment 104 by throttle setting 108.

But the device for having the throttle setting 1 of the present embodiment is not limited to refrigerator.In addition, having the air door of the present embodiment The structure of the refrigerator of device 1 is not limited to structure shown in FIG. 1.

As shown in Figures 2 and 3, the throttle setting 1 of the present embodiment has driving force transmission device 2 and is configured at the driving force The first frame 3 and the second frame 4 of the two sides of transfer device 2.First frame 3 has opening portion 7 and by being transmitted by driving force The driving force that device 2 transmits is opened and closed the opening-closing plate 5 (opening and closing member) of the opening portion 7.Second frame 4 has opening portion 8 and passes through The opening-closing plate 6 (opening and closing member) of the opening portion 8 is opened and closed by the driving force that driving force transmission device 2 is transmitted.

Here, direction X is the configuration direction along the first frame 3 and the second frame 4 relative to driving force transmission device 2 Direction (+X direction is the direction from 3 side of the first frame towards 4 side of the second frame, and -X direction is its opposite direction).In addition, side It is the direction orthogonal with direction X to Y, and is that (+Y direction is out along the direction of the opening direction of opening portion 7 and opening portion 8 The direction that oral area 7 and opening portion 8 are opened, -Y direction is its opposite direction).In addition, direction Z be with direction X and direction Y just Friendship direction (it is right side that +Z direction, which is with the first frame 3, with the second frame 4 be left side from +Y direction when upper direction ,- Z-direction is its opposite direction).

Opening-closing plate 5 and opening-closing plate 6 as opening and closing member are constituted are as follows: it is equipped with rotary shaft (not shown) at one end, it can It is rotated on the basis of the rotary shaft by the driving force transmitted by driving force transmission device 2.In addition, Fig. 2 shows opening and closings The state that plate 5 is in an open position and opening-closing plate 6 is in the closed position, Fig. 3 shows opening-closing plate 5 and opening-closing plate 6 is in and beats The state of open position.

In the throttle setting 1 of the present embodiment, as the opened and closed positions of opening-closing plate 5 and opening-closing plate 6, it can be formed at both sides In closed position, a side is in an open position and another party is in the closed position, both sides are in an open position, a side is in and closes Position and another party's this four states in an open position.Moreover, forming this four states, refrigerator 101 by throttle setting 1 The air-flow AF imported to refrigerating chamber 102, freezing chamber 103 and vegetable compartment 104 can be adjusted (that is, refrigerating chamber 102, cold can be adjusted Freeze the temperature of room 103 and vegetable compartment 104).In addition, in the refrigerator 101 of the present embodiment, except in 6 standard-sized sheet of opening-closing plate 5 and opening-closing plate State (fully open position) or opening-closing plate 5 and 6 completely closed state of opening-closing plate (full close position) under except use, can also be It is used in the state that the state or opening-closing plate 5 and opening-closing plate 6 that opening-closing plate 5 and opening-closing plate 6 are not exclusively opened are not fully closed.

Then, major part, that is, driving force transmission device 2 of the throttle setting of the present embodiment 1 is described in detail.

Here, Fig. 4~Fig. 8 is the skeleton diagram of the driving force transmission device 2 of the throttle setting 1 of the present embodiment.Wherein, Fig. 4 It is the skeleton diagram of the driving force transmission device 2 from the direction along direction X.In addition, Fig. 5 and Fig. 6 are driving force transmitting dresses 2 approximate stereogram is set, Fig. 6 shows the state for floating gear 10 and gear 11 relative to state shown in fig. 5, to hold The structure of readily understood gear 12 and gear 13.Fig. 7 is the state after removing the gear other than gear 12 and gear 13, is from edge The skeleton diagram of the driving force transmission device 2 of the direction observation of direction X, indicate that gear 12 is in the state of first position.Moreover, Fig. 8 is the state after removing the gear other than gear 12 and gear 13, is that the driving force from the direction along direction X passes The skeleton diagram of delivery device 2 indicates that gear 12 is in the state of the second position.

In addition, Fig. 9 is the skeleton diagram for indicating a part of the driving force transmission device 2 of throttle setting 1 of the present embodiment, table Show that gear 12 is in the state of first position.

In addition, Figure 10 is the diagrammatic sectional view for indicating a part of the driving force transmission device 2 of throttle setting 1 of the present embodiment Figure.

Moreover, Figure 11~Figure 14 shows the transmission gear i.e. gear 12 of the throttle setting 1 of the present embodiment, Figure 11 is three-dimensional Figure, Figure 12 are mounted to the top view of the state of driving force transmission device 2, and Figure 13 is bottom view, and Figure 14 is from different from Figure 11 Direction observation perspective view.

As shown in Fig. 4~Fig. 6, there is the driving force transmission device 2 of the present embodiment the stepper motor 48 as driving source (to drive Dynamic portion).Stepper motor 48 has the rotary shaft 16 for being equipped with gear 17, and being can be with the structure of bidirectional rotation, it can makes to rotate Axis 16 is rotated forward and is reversed.

In addition, the driving force transmission device 2 of the present embodiment is the structure with stepper motor 48 as driving source, but to drive Dynamic source is not particularly limited, for example, it is also possible to replace stepper motor 48 using direct current generator etc..

In addition, the driving force transmission device 2 of the present embodiment has the rotation (rotation of rotary shaft 16) of stepper motor 48 The gear train 9 transmitted after deceleration.Gear train 9 is made of first gear 18, second gear 21 and third gear 24.First tooth Wheel 18 has the large diameter gear portion 19 of the teeth portion engaged with gear 17 and set on the position than the inner side in large diameter gear portion 19 The small-diameter gear portion 20 set.

In addition, second gear 21 has the large diameter gear portion 22 engaged with the small-diameter gear portion 20 of first gear 18 and is set to Than the small-diameter gear portion 23 of the position of the inner side in large diameter gear portion 22.

In addition, third gear 24 have the large diameter gear portion 25 engage with the small-diameter gear portion 23 of second gear and set on than The small-diameter gear portion 26 of the position of the inner side in large diameter gear portion 25.The gear train 9 of the present embodiment forms such structure, but tooth The structure of train is not particularly limited.

In addition, the driving force transmission device 2 of the present embodiment has the gear that can be rotated on the basis of rotary shaft 37 10 (rotation gears).Gear 10 has the tooth 27 for being set to peripheral part and engaging with tooth 26 and set on the position than the inner side of tooth 27 And it is set to the tooth 28 of a part of concentric circles, that is, circumferential part 59 on the basis of rotary shaft 37.In addition, gear 10 with direction X On the opposite side in side for forming with teeth 28 there is contact portion 34, the details of contact portion 34 describe (referring to Fig.1 5) later.

Moreover, have can be with the rotation with the opening-closing plate 5 on the first frame 3 for the driving force transmission device 2 of the present embodiment The gear 11 (output gear) rotated on the basis of axis common axis of rotation, that is, rotary shaft 30.Gear 11, which has, is set to peripheral part And the tooth 29 engaged with tooth 28.The progress moving in rotation synchronous with the moving in rotation of gear 11 of opening-closing plate 5.

In addition, gear 11 is fan gear, with teeth 29 are formed in the outermost circumferential portion (circular arc portion) of fan.In addition, A part of region of the downside (+X direction side) of tooth 29 is equipped with the abutting tooth abutted with circumferential part 59.Specifically, in tooth 29 A part of tooth (one or more teeth of the both ends side on the moving in rotation direction of gear 11) is configured in the+x direction than it Its tooth is short.Moreover, supporting the length that the lower part (+X direction side) for being configured to tooth short in the+x direction constitutes peripheral direction is short Connect tooth.Gear 11 is by forming such structure, and when tooth 28 is in the position engaged with tooth 29, tooth 28 and tooth 29 are contacted, When tooth 28 is not at the position engaged with tooth 29, the part for not forming tooth 28 of circumferential part 59 and the abutting tooth contact.That is, tooth Wheel 11 is constrained and positioned by tooth 28 when tooth 28 is in the position engaged with tooth 29, is not in tooth 28 and engages with tooth 29 When position, positioned by the partially restrained for not forming tooth 28 of circumferential part 59.By this structure, gear 11 always with tooth 10 contact of wheel can effectively be positioned without ground is shaken.

In addition, as shown in Figure 6 to 8, the driving force transmission device 2 of the present embodiment has can be with the rotation with gear 10 The gear 12 (transmission gear, driven gear) rotated on the basis of axis common axis of rotation, that is, rotary shaft 37.Gear 12 has Set on a part of the concentric circles on the basis of rotary shaft 37 tooth 31 and clip rotary shaft 37 set on the side opposite with tooth 31 By contact portion 35.Here, what gear 12 was configured to contact by the contact portion 34 (Figure 15) in gear 10 with by contact portion 35 It is pressed by contact portion 35 from contact portion 34 to direction of rotation under state, is passively rotated with the rotation of gear 10.

Moreover, have can be with the rotation with the opening-closing plate 6 on the second frame 4 for the driving force transmission device 2 of the present embodiment The gear 13 (fan gear, output gear) rotated on the basis of axis common axis of rotation, that is, rotary shaft 33.The gear 13 Shaft core position is consistent in the assembled state with the rotary shaft 30 of above-mentioned gear 11 for rotary shaft 33.Gear 13 has and is set to outside The tooth 32 that the tooth 31 of circumference 38 engages.The tooth 32 is also provided in a part of range in the circumferential rather than is arranged throughout complete cycle.It opens The progress moving in rotation synchronous with the moving in rotation of gear 13 of closing plate 6.

Here, being further illustrated to gear 12.As shown in Figure 11~Figure 14, at one of the periphery for constituting gear 12 The a part for the path arc sections 52 divided has the tooth 31 engaged with the tooth 32 of gear 13.Tooth 31 is in gear 12 and gear 10 1 It is rotated when rotating to body and passes to gear 13.Here, the rotary shaft 33 of gear 13 is common with the rotary shaft of opening-closing plate 6 Rotary shaft, so, it is rotated by gear 13, opening-closing plate 6 opens and closes.

In addition, as described above, the structure of gear 12 are as follows: with only when gear 10 in the rotating range of the gear 10, connect Premised on the pressing of contact portion 34 is rotated when being moved in the range of contact portion 35.But it presses in contact portion 34 by contact portion In the range of other than 35 range, the rotary force of gear 10 is via the lubricating grease (lubrication between the gear 10 and gear 12 Agent) etc. pass to gear 12, gear 12 is possible to corotation.

Therefore, in the driving force transmission device of the present embodiment 2, the structure for being able to suppress the corotation of gear 12 is formed.Tool For body, as shown in Figure 11~Figure 14, a part of gear 12 around gear 12 have relative to path arc sections 52 away from The longer major diameter arc sections 51 (cam surface) of the distance of rotary shaft 37.Moreover, as shown in Figures 7 and 8, driving force transmission device 2 Has leaf spring i.e. press section 36 in the position that major diameter arc sections 51 and aftermentioned corner 54 contact.

Here, gear 12 constitutes peripheral part 38 by major diameter arc sections 51, path arc sections 52 and planar portions 61, wherein Planar portions 61 are the shape for the substantial linear cutting that major diameter arc sections 51 are connected with path arc sections 52, and constitute and aftermentioned limit 15 corresponding contact surface (bearing surface) of portion processed.In addition, glossily continuously without being formed between path arc sections 52 and planar portions 61 Step is formed with corner 54 between major diameter arc sections 51 and planar portions 61.That is, major diameter arc sections 51 be located at two corners 54 it Between.

In this way, the structure of gear 12 are as follows: by major diameter arc sections 51 by leaf spring, that is, press section 36 pressing (be applied load, So as not to carry out corotation by the rotary force of gear 10) inhibit corotation.Specifically, the structure of gear 12 are as follows: in tooth When state (referring to Fig. 7 and Fig. 8) that wheel 12 limits for restricting portion 15, thus 54 pressed portion 36 of corner pressing inhibits altogether Turn.But the structure of press section is not limited to this leaf spring.Such as be also possible to the elastomers such as rubber etc., as long as can be to tooth Take turns the component of 12 service loads.Alternatively, it is also possible to be made using the cam surface of peripheral part 38 is contacted with press section Constitute the structure etc. of the axle portion contact press section of rotary shaft 37.

In addition, gear 10 in the rotating range of gear 10, contact portion 34 press by contact portion 35 in the range of move When, because the pressing of contact portion 34 is stronger than the power of the rotation of the inhibition of press section 36 gear 12 by the power of contact portion 35, gear 12 It is rotated with the rotation of gear 10.At this point, cam surface (major diameter arc sections 51) slides on press section 36.

In addition, if being illustrated with another kind expression to the inhibition of the corotation of gear 12, then as described below.

As shown in figure 11, gear 12 is constituted are as follows: being formed on the axis direction of rotary shaft 37 can be in upside (-X direction Side loads the side of gear 10) mounting surface 56 of mounting gear 10, and by contact portion 35 from the flat part 53 of the gear 12 to Upside extends to the position more upper than mounting surface 56.Moreover, as described above, the gear 12 has by restricting portion 15 The corner 54 of corotation is prevented in the state of limitation from the application load of press section 36, and is had by contact portion 35 and contact portion 34 Abut the major diameter arc sections 51 slided on press section 36 when rotation.Moreover, major diameter arc sections 51 are the curved surface for constituting circular arc, warp By the coupling part and corner 54 in major diameter arc sections 51 and corner 54 and the coupling part of planar portions 61,51 shape of major diameter arc sections At with the continuous face of planar portions 61.

In the coupling part and corner 54 and the coupling part of planar portions 61 in major diameter arc sections 51 and corner 54, major diameter The coupling part in arc sections 51 and corner 54 is located at radial outside (distance away from rotary shaft 37 is longer).Therefore, pass through press section 36 resistances when attempting to cross corner 54 prevents corotation.

In addition, the path arc sections 52 of flat part 53 are in addition to the region for forming tooth 31, upside as shown in Figure 11~Figure 14 (-X direction side) constitutes peripheral part 38 with planar portions 61, corner 54 and major diameter arc sections 51 together, and downside (+X direction side) is whole Arc-shaped (cylindric) is formed on body.Specifically, as shown in figure 12, being formed with composition path in the lower part of major diameter arc sections 51 The relief portion 55 of the circular arc of arc sections 52.In addition, the path arc sections 52 only have tooth 31 in a part of region of circumferencial direction.

Here, gear 13 is fan gear, with teeth 32 are formed in the outermost circumferential portion (circular arc portion) of fan.In addition, A part of region of the downside (+X direction side) of tooth 32, equipped with the abutting tooth abutted with path arc sections 52.Specifically, tooth 32 In a part of tooth (one or more teeth of the both ends side on the moving in rotation direction of gear 13) be configured in the+x direction It is shorter than other teeth.Moreover, constituting the length of peripheral direction in the lower part (+X direction side) for being configured to tooth shorter in the+x direction Shorter abutting tooth.Gear 13 is by forming such structure, when tooth 31 is in the position engaged with tooth 32, tooth 31 and tooth 32 Contact, when tooth 31 is not at the position engaged with tooth 32, the part for not forming tooth 31 of path arc sections 52 and the abutting Tooth contact.That is, gear 13 is constrained and positioned by tooth 31, be not in tooth 31 when tooth 31 is in the position engaged with tooth 32 When the position engaged with tooth 32, positioned by the partially restrained for not forming tooth 31 of path arc sections 52.Pass through this knot Structure, gear 13 are always contacted with gear 12, can effectively be positioned without ground is shaken.

Moreover, the driving force transmission device 2 of the present embodiment has storage stepper motor 48, gear as shown in Fig. 4~Fig. 9 It is the incorporating section 14 of 9, gear 10, gear 11, gear 12 and gear 13 etc..Incorporating section 14 is in the present embodiment by resin material system Make, but be not limited to the resin material, can also be made by other materials, such as metal material.

In turn, as shown in fig. 7~fig. 9, the driving force transmission device 2 of the present embodiment has is limited by contact gear 12 The limiting unit 15 of the rotating range of the gear 12.Specifically, it is set as such as flowering structure: as limiting unit 15, has the first limit The limiting unit of portion 15a processed and second limiting unit 15b the two rib shape, the first limiting unit 15a is in first position limiting gear 12 Rotating range, rotating range of the second limiting unit 15b in second position limiting gear 12.

In the present embodiment, limiting unit 15 (the first limiting unit 15a and the second limiting unit 15b) utilizes identical as incorporating section 14 Resin material by with the incorporating section 14 is integrally formed makes.Certainly, (the limit of the first limiting unit 15a and second of limiting unit 15 Portion 15b processed) it can also be made by the material different from incorporating section 14, and the predetermined bits of incorporating section 14 are mounted on by fastener It sets.

Because the limiting unit 15 of the present embodiment by with incorporating section 14 is integrally formed makes, the wall with incorporating section 14 Portion 42 and face 14a (bottom surface) are continuously formed.But it is not limited to this structure, is also possible to only connect with the wall portion 42 of incorporating section 14 The structure that is formed continuously, the structure being only continuously formed with face 14a, the side opposite only and with face 14a face be continuously formed Structure etc..

As shown in figure 9, gear 12 has outer peripheral surface 49 (contact surface) in peripheral part 38, pass through 39 He of side of limiting unit 15 The contact of outer peripheral surface 49 carrys out the rotating range of limiting gear 12.

Here, the throttle setting 1 about the present embodiment, is concluded such as the time being on the basis of 4 side of the second frame (6 side of opening-closing plate) Under.

The throttle setting 1 of the present embodiment has the stepper motor 48 as driving source, by the driving force of stepper motor 48 The conduct output gear that opening-closing plate 6 is output to as the opening-closing plate 6 of opening and closing member, by the driving force of stepper motor 48 being opened and closed The gear 13 of wheel.In addition, having the gear 12, logical as transmission gear that the driving force of stepper motor 48 is passed to gear 13 Cross limiting unit 15, setting limiting unit 15 and the storage gear 13 and gear 12 of contact gear 12 and the rotating range of limiting gear 12 Incorporating section 14.Moreover, gear 12 is configured to and by the limitation rotating range of limiting unit 15 from first position to second Rotation in the rotating range set.

In addition, first position corresponds to the fully open position of opening-closing plate 6, the second position in the throttle setting 1 of the present embodiment Corresponding to full close position.

Here, as described above, as limiting unit 15, having and being limited in first position in the throttle setting 1 of the present embodiment It first limiting unit 15a of the rotation of gear 12 and is separately constructed with the first limiting unit 15a and in second position limiting gear 12 Second limiting unit 15b of rotation.Therefore, the throttle setting 1 of the present embodiment can will be in the rotation of first position limiting gear 12 When and be applied in the rotation of second position limiting gear 12 the power dispersion of limiting unit 15, be able to suppress the damage of limiting unit 15 Wound.

In addition, as shown in Figure 10, so-called " being separately constructed " refers to the abutting part 60 that the peripheral part 38 with gear 12 abuts (peripheral part 38 for being equivalent to aftermentioned first structure portion 15a ' and the gear 12 in first structure portion 15b ' in the present embodiment connects The part of touching), and the abutting part 60 is independent on the face 14a of the side of the setting limiting unit 15 of incorporating section 14.But such as The abutting part 60 of two limiting units 15 of fruit is not attached to each other, then means the also structure comprising two limiting units 15 are connected with each other The meaning of (rib 50 shown in the dotted line referring for example to Figure 10).

Here, the first limiting unit 15a has towards with by contact gear 12 to be connect from gear 12 as shown in Fig. 7 and Fig. 9 The first structure portion 15a ' that the different side direction (direction E) in the direction side F1 of stress extends.In addition, as shown in figure 8, the second limitation Portion 15b has towards from undertaking to be extended through contact gear 12 direction side different from the direction side F2 of power that gear 12 receives First structure portion 15b '.Therefore, the throttle setting 1 of the present embodiment can will be applied to limiting unit 15 (the first limiting unit 15a and Second limiting unit 15b) the direction side dispersion that extends to first structure portion 15a ' and first structure portion 15b ' of power.

In addition, the first limiting unit 15a has directed through contact gear 12 and receives from gear 12 as shown in Fig. 7 and Fig. 9 The second structural portion 15a " (extended portion) that the direction side F1 of power extends.In addition, as shown in figure 8, the second limiting unit 15b has direction Accept the second structural portion 15b " extended through the direction side F2 for contacting the power that gear 12 receives from gear 12.Therefore, this reality The throttle setting 1 for applying example can effectively be accepted using the second structural portion 15a " and the second structural portion 15b " and be applied to limiting unit 15 The power of (the first limiting unit 15a and the second limiting unit 15b).

In addition, so-called " extending directed through contact gear 12 from the direction side of 12 capacity of gear ", as long as refer to The meaning of the structure substantially extended on the direction of capacity (such as direction F2 of the present embodiment) is not on stricti jurise The structure extended on the direction (such as direction F1) of capacity also may be used.Specifically, for example, corresponding have relative to receiving The direction of power forms the structure that the side of ± 90 degree of angles below upwardly extends, it is further preferred that relative to capacity Direction forms the structure etc. that the side of ± 45 degree of angles below upwardly extends.

In addition, so-called " extending towards the direction side different from the direction side from 12 capacity of gear ", the meaning is also contained in Gear 12 and limiting unit 15 are upwardly extended from the position face contact of 12 capacity of gear in the side along the face Structure and the structure upwardly extended in the side approximately along the face.

In addition, using another expression, the first limiting unit 15a of the present embodiment has to be contacted and court with gear 12 The first structure portion 15a ' extended to the direction side different from by contacting the direction side F1 of gear 12 from 12 capacity of gear With the second structure for contacting directed through first structure portion 15a ' with gear 12 and extending from the direction side F1 of 12 capacity of gear Portion 15a ".In addition, as shown in figure 8, the second limiting unit 15b, which has to contact with gear 12, simultaneously passes through contact gear 12 towards with undertaking And first structure portion 15b ' that the different direction side in the direction side F2 of the power received from gear 12 extends and towards accepting by the One structural portion 15b ' is contacted with gear 12 and the second structural portion 15b " of the direction side the F2 extension from the power of the receiving of gear 12.

Therefore, the power of limiting unit 15 (the first limiting unit 15a and the second limiting unit 15b) will can be applied to first structure The direction side dispersion that portion 15a ' and first structure portion 15b ' extends, further, it is possible to utilize the second structural portion 15a " and the second structure Portion 15b " effectively accepts the power for being applied to limiting unit 15.Therefore, the throttle setting 1 of the present embodiment is able to suppress limiting unit 15 Damage.

In addition, as described above, the limiting unit 15 (the first limiting unit 15a and the second limiting unit 15b) of the present embodiment is constituted are as follows: The peripheral part 38 of gear 12 is alternately contacted with first structure portion 15a ' and first structure portion 15b ', thus the rotation of limiting gear 12 Turn.

It, can be in the outside shape of gear 12 by the structure for being set as contacting the peripheral part 38 of limiting unit 15 and gear 12 At limiting unit 15, therefore, it is easy big and is rigidly formed limiting unit 15, and by the way that limiting unit 15 is formed as beam-like etc., Incorporating section 14 can be made to become firm.

In addition, the structure of the limiting unit 15 of the present embodiment are as follows: pass through " the gear 12 on the basis of the rotary shaft 37 of gear 12 Peripheral part 38 " and first structure portion 15a ' and first structure portion 15b ' alternately contact and the rotation of limiting gear 12.Therefore, lead to It crosses and limiting unit 15 and gear 12 is set as such structure, it can will be from the rotary shaft 37 of gear 12 to limiting unit 15 and gear The distance of 12 contact position is set to longer (the distance L2 of 5 distance L1 and Figure 25 referring to Fig.1).That is, can mitigate from tooth Wheel 12 acts on the stress of limiting unit 15.The throttle setting 1 of the present embodiment can particularly effectively inhibit limiting unit 15 as a result, Damage.The limiting unit 15 of the present embodiment has a structure in which, but " peripheral part " is not necessarily defined to the rotation of gear 12 The peripheral part of gear 12 on the basis of shaft 37.For example, it is also possible to be set as the shape on the face opposite with the face 14a of incorporating section 14 At two limiting units 15, has the abutting part abutted with the two limiting units 15 on the face 57 of 56 side of mounting surface of flat part 53 The structure etc. of part.

In addition, as described above, it (is specifically first that the gear 12 of the present embodiment, which has in peripheral part 38 with limiting unit 15, Structural portion 15a ' and first structure portion 15b ') corresponding contact surface, that is, outer peripheral surface 49.In other words, the peripheral part 38 of gear 12 is extremely Few part abutted with limiting unit 15 is configured to the contact surface of face shape.Therefore, the throttle setting 1 of the present embodiment is constituted are as follows: is held It is easily contacted with 15 face contact of limiting unit or line, is able to suppress and is applied to limiting unit 15 because caused by with 15 point contact of limiting unit The case where power converges.

Here, the side 39 (Fig. 9) of limiting unit 15 is it is also preferred that the part at least abutted with the peripheral part 38 of gear 12 is formed For face shape.With this configuration, then the peripheral part 38 of gear 12 and the mutual abutment portion of limiting unit 15 are respectively formed face shape Face contact, the case where above-mentioned power converges can be further suppressed.

In addition, as shown in figure 12, the first limiting unit 15a of the present embodiment is in first structure portion 15a ' if supplementary explanation The end of the second side structural portion 15a " be formed with relief portion 58.The relief portion 58 of first structure portion 15a ' is to be configured to more direction The end of second side structural portion 15a " is in order to avoid constituting with the contact of gear 12 further away from the part of (evacuation) gear 12 Part.First limiting unit 15a is due to relief portion 58, so that end will not be contacted with gear 12.

In addition, as described above, the shape for forming the region of tooth 31 is removed in the downside (+X direction side) of gear 12 (flat part 53) At cylindric, but upside (-X direction side) be not cylindric, has the major diameter arc sections 51 as cam surface.Such as Figure 14 Shown, there are the relief portion 55 of arc sections on the downside of gear 12 (flat part 53), the upper side and lower side of gear 12 is not continuous. Outer diameter, that is, outside circle (circular arcs of path arc sections 52) than forming tooth 31 is set to by the contact of the position of radial outside that is, having Face, that is, planar portions 61, although and there are cam surface (the major diameter arc sections different with outside circle from outside circle similar shape center 51) part of the straight line of cam surface, will be connected from outside circle as contact surface.It is not from circle using another kind expression The structure member of shape cuts the shape of its lateral parts, but uses with flowering structure: protruding portion is arranged to circular structure member Rounded portions are connected by (cam surface) with straight line with cam surface, and using the straight line portion as contact surface.

Here, as shown in fig. 7~fig. 9, the wall portion 42 of the first limiting unit 15a and incorporating section 14 (is specifically wall portion 42a And wall portion 42b) be connected, the second limiting unit 15b (is specifically connected with the wall portion 42 of incorporating section 14 for wall portion 42c).In this reality It applies in example, the first limiting unit 15a and the second limiting unit 15b are by utilizing resin material identical with incorporating section 14 and the incorporating section 14 is integrally formed and make the structure that is connected securely with wall portion 42.Certainly, the first limiting unit 15a and the second limiting unit 15b It can be and be fabricated separately the construction being connected again by fastener with wall portion 42 with incorporating section 14.

In this way, in the throttle setting 1 of the present embodiment, because limiting unit 15 is connected with the wall portion 42 of incorporating section 14, The power for being applied to limiting unit 15 can be also distributed to the wall portion 42 of incorporating section 14, can effectively accept above-mentioned application Power.

In addition, so-called " wall portion 42 of incorporating section 14 ", specifically refers to the direction extended with the rotary shaft 37 of gear 12 The wall portion 42 of incorporating section 14 on the direction (direction intersected with direction X) of intersection.

Here, in the present embodiment, limiting unit 15 is the structure being connected with the wall portion 42 of the periphery wall as incorporating section 14, It is that need not alternatively form wall portion can effectively accept the structure for being applied to the power of limiting unit 15.It is however not limited to this knot Structure, be also possible to be formed separately with the periphery wall of incorporating section 14 wall portion (such as incorporating section 14 face 14a or with face 14a phase To face on formed) and structure that limiting unit 15 is connected with the wall portion.

In addition, as described above, the first limiting unit 15a is connected with multiple positions (wall portion 42a and wall portion 42b) of wall portion 42. The power for being applied to limiting unit 15 can be distributed to the multiple of the wall portion 42 of incorporating section 14 by the throttle setting 1 of the present embodiment as a result, Position is effectively accepted.

In addition, being that only the first limiting unit 15a is connected with multiple positions of wall portion 42 in the throttle setting 1 of the present embodiment Structure, but the structure being further preferably also connected with multiple positions of wall portion 42 using the second limiting unit 15b.

In addition, the limiting unit 15 of the present embodiment is rib shape as shown in Fig. 7~Fig. 9 etc..Here, being formed in incorporating section 14 When limiting unit 15, because of the difference etc. of the coefficient of thermal expansion of the coefficient of thermal expansion and limiting unit 15 of incorporating section 14, when increase limiting unit 15 with When the contact area of incorporating section 14, incorporating section 14 may deformation.But because the limiting unit 15 of the present embodiment is rib shape, institute To be able to suppress the deformation that incorporating section 14 is generated with the formation of limiting unit 15.

In addition, as shown in figure 9, limiting unit 15 (is specifically the first limiting unit in the throttle setting 1 of the present embodiment 15a) to be located off limiting unit 15 with the contact position 41 of gear 12 (be specifically the first structure of the first limiting unit 15a Portion 15a ') end 40 position.When 40 applied force of end to limiting unit 15, especially limiting unit 15 is easy to damage, but In the throttle setting 1 of the present embodiment, the end that limiting unit 15 is located off with the contact position 41 of gear 12 of limiting unit 15 40 position.Therefore, the throttle setting 1 of the present embodiment can effectively inhibit the damage of limiting unit 15.

In addition, so-called " end 40 of limiting unit 15 ", in the embodiment shown in fig. 9, refers to the rotary shaft with gear 12 37 directions extended and from the limiting unit 15 on the direction that the direction F1 of 12 capacity of gear intersects (i.e. direction E in Fig. 9) End.Moreover, so-called " position for deviateing the end 40 of limiting unit 15 ", such as corresponding there is the not end 40 with limiting unit 15 The position of contact.

It is not limited to the construction of embodiment shown in Fig. 9 and " position for deviateing the end 40 of limiting unit 15 " is carried out general It includes, and is defined below.

As described above, " end of limiting unit " is the concept for illustrating limiting unit 15 from the part of 12 capacity of gear.That is, institute Meaning " position for deviateing the end of limiting unit ", refers in the limiting unit 15 for being formed as certain shape, avoids because from gear 12 Above-mentioned power and the position being easy to damage receive above-mentioned power in the part of not easy damaged.Specifically, for example, limiting unit 15 with It is corresponding to have in the face or side in the case that the part (such as side 39 of limiting unit 15) that gear 12 contacts has face or side Between part etc..

In addition, in the throttle setting 1 of the present embodiment, although being explained, incorporating section 14 and limiting unit 15 It is made of resin, limiting unit 15 is made and integrally formed with incorporating section 14.Therefore, 1 energy of throttle setting of the present embodiment Enough it is easy to set up limiting unit 15.In turn, in the throttle setting of the present embodiment 1, the first limiting unit 15a and the second limiting unit 15b is fabricated to the construction being connected with wall portion 42 and integrally formed using resin material and the incorporating section 14, so constructing On be firm.

It is however not limited to this structure, limiting unit 15 can not also with incorporating section 14 is integrally formed makes, can also be by Different raw material are construed as limiting portion 15 and incorporating section 14.

In addition, as described above, the limiting unit 15 of the present embodiment by with incorporating section 14 is integrally formed makes, so with receipts It receives the wall portion 42 in portion 14 and face 14a is continuously formed.It is however not limited to this structure, also can be set as only with incorporating section 14 Wall portion 42 be continuously formed structure, be only continuously formed with face 14a, the face of the side opposite only and with face 14a continuously The structure etc. of formation.

In addition, as shown in figure 9, the first limiting unit 15a and the second limiting unit 15b of the present embodiment all have corner 47, but These corners 47 are chamfered.In other words, at least one of the part of two faces intersection of limiting unit 15 is chamfered.In this reality It applies in example, all corners 47 are chamfered.In this way, preferably corner 47 is chamfered when limiting unit 15 has corner 47.

In the case where limiting unit 15 has corner 47, limiting unit 15 is easy to damage from the corner 47, even if as this reality The throttle setting 1 of example is applied like that in the case where limiting unit 15 has corner 47, as long as corner 47 is chamfered, it will be able to effectively suppression The damage of limiting unit 15 processed.

In addition, so-called " corner 47 is chamfered ", it is planar not only to include the case where that corner 47 is chamfered to be, it also include corner 47 the case where being chamfered to be curved (for example, the circular shape as the corner 47 of the present embodiment).

In addition, as shown in figs. 6-9, the gear 12 of the present embodiment has on the basis of by rotary shaft 37 of the gear 12 Concentric circles a part be equipped with tooth 31 engaging section 46.Moreover, being configured to by nibbling engaging section 46 and the tooth 32 of gear 13 It closes, the driving force of stepper motor 48 is passed into gear 13.The throttle setting 1 of the present embodiment passes through the gear with this structure 12, it is able to easily form the state for engaging the engaging section 46 of gear 12 with the tooth 32 of gear 13.Therefore, it is easy to make gear 13 stop (that is, opening-closing plate 6 is maintained at open position or closed position) in specified position.

In addition, as described above, the path arc sections 52 of flat part 53 except formed tooth 31 region in addition to, upside (-X direction Side) with planar portions 61, corner 54 and major diameter arc sections 51 peripheral part 38 is constituted together, but downside (+X direction side) generally forms Arc-shaped (cylindric).In addition, the path arc sections 52 only have tooth 31 in a part of region of circumferencial direction.Moreover, as above Described, gear 13 is fan gear, forms with teeth 32 in the outermost circumferential portion (circular arc portion) of fan.In addition, under tooth 32 A part of region of side (+X direction side) is equipped with the abutting tooth abutted with path arc sections 52.Gear 13 is by forming this knot Structure is constrained and positioned by tooth 31, the position engaged with tooth 32 is not in tooth 31 when tooth 31 is in the position engaged with tooth 32 When setting, positioned by the partially restrained for not forming tooth 31 of path arc sections 52.By this structure, gear 13 always with Gear 12 contacts, and can effectively be positioned without ground is shaken.

Then, the rotation to the gear 11 and gear 12 of the rotation with gear 10 and with the rotation of gear 12 The rotation of gear 13 is illustrated.

Figure 15 is the general of the movement for each gear for the driving force transmission device 2 for illustrating the throttle setting 1 of the present embodiment Sketch map.

In addition, Figure 25 is the general of the movement of each gear of the driving force transmission device for illustrating the throttle setting of reference example Sketch map.In addition, in Figure 25, for easy understanding structure of limiting unit 15 (limiting unit 15e) will be right with the gear 12 of the present embodiment The gear 212 as transmission gear answered is expressed as local perspective view.In the throttle setting of reference example, the shape on gear 212 The access 260 of the corresponding channel-shaped of mono- limiting unit 15e of Cheng Youyu.Moreover, when rotating gear 212, limiting unit 15e and access 260 end contact, the thus rotation of limiting gear 212.

It as shown in figure 15, is closed position in opening-closing plate 5 and 6 both sides of opening-closing plate in the throttle setting of the present embodiment 1 Close-close origin position, the tooth 28 of gear 10 clips rotary shaft 37 relative to gear 11 and is located at opposite side.In this state, tooth The tooth 31 of wheel 12 is in the tooth 28 relative to gear 10, and CW has rotated 120 ° of position clockwise.Here, close-close original The configuration of the gear 11 of point position is that the state of closed position is corresponding with opening-closing plate 5, closes-close the gear 13 of origin position Configuration is that the state of closed position is corresponding with opening-closing plate 6.

Here, first position is corresponding with the fully open position of opening-closing plate 6, second in the throttle setting 1 of the present embodiment It sets corresponding with full close position.When make first position and the second position and Figure 15 to it is corresponding when the first position (standard-sized sheet of opening-closing plate 6 Position) origin position is opened, Kai-opens stop position and closes-open stop position (three, the right side of Figure 15) corresponding, gear with Kai- 12 abut with the first limiting unit 15a.On the other hand, the second position (full close position of opening-closing plate 6) and close-close origin position, It closes-closes stop position and open-close stop position (three, the left side of Figure 15) is corresponding, gear 12 is abutted with the second limiting unit 15b.

By driving stepper motor 48 from closing-closing origin position, power is driven it via gear train 9 and passes to gear 10 and make gear 10 clockwise CW rotate 120 ° when, become close-close stop position.From close-close origin position to It closes-closes between stop position, the tooth 28 of gear 10 is not contacted with the tooth 29 of gear 11.That is, from close-close origin position to It closes-closes between stop position, gear 10 does not engage with gear 11.In addition, from closing ,-close origin position to close-closes stop position Between setting, the contact portion 34 of gear 10 is not contacted with gear 12 by contact portion 35.That is, from close-close origin position to close- It closes between stop position, gear 10 does not engage with gear 12.Therefore, from closing-close origin position to close-close stop position it Between, gear 11 and gear 13 do not rotate (moving in rotation), and the state of 6 both sides of opening-closing plate 5 and opening-closing plate is unchanged.Therefore, Stop position is being closed-is closing, opening-closing plate 5 and 6 both sides of opening-closing plate are closed position.

By further driving stepper motor 48 from closing-closing stop position, power is driven it into one via gear train 9 Walk to gear 10 transmit and make gear 10 further clockwise CW rotate 120 ° when, become open-close stop position.? From closing-closing stop position to open-close stop position, the tooth 28 of gear 10 and the tooth 29 of gear 11 are contacted, gear 11 to Counter clockwise direction CCW rotation.That is, gear 10 and gear 11 block from closing-closing stop position to open-close stop position It closes, the CCW moving in rotation counterclockwise of gear 11.On the other hand, from closing-closing stop position to open-close stop position Between, the contact portion 34 of gear 10 (does not become contact portion 34 after open-close stop position with being contacted by contact portion 35 of gear 12 Just start to contact with by contact portion 35).That is, from closing-closing stop position to open-close stop position, gear 10 and tooth Wheel 12 does not engage.Therefore, from closing-closing stop position to open-close stop position, gear 11 rotates, and opening-closing plate 5 is gradually It opens, gear 13 does not rotate (state of opening-closing plate 6 is unchanged).Therefore, in open-close stop position, opening-closing plate 5 is open position It sets, opening-closing plate 6 is closed position.

By further driving stepper motor 48 from open-close stop position, power is driven it into one via gear train 9 It walks when being transmitted to gear 10 and making gear 10 further CW rotates 120 ° clockwise, becomes out-open origin position.? From open-close stop position to Kai-open between origin position, the tooth 28 of gear 10 and the tooth 29 of gear 11 do not contact.That is, from Open-close stop position is opened between origin position to Kai-, and gear 10 does not engage with gear 11.On the other hand, stop from open-close Stop bit is set out-is opened between origin position, the contact portion 34 of gear 10 and being contacted by contact portion 35 for gear 12, gear 12 to Clockwise direction CW rotation.In addition, the tooth 31 by gear 12 is engaged with the tooth 32 of gear 13, gear 13 is counterclockwise CCW rotation.That is, from open-close stop position to Kai-open between origin position, gear 10 engages with gear 12, and then gear 12 engage with gear 13.Therefore, from open-close stop position to Kai-open between origin position, gear 11 do not rotate (opening and closing The state of plate 5 is unchanged), but gear 13 rotates, and opening-closing plate 6 is gradually opened.Therefore, open origin position in Kai-, opening-closing plate 5 and 6 both sides of opening-closing plate are open position.

By driving stepper motor 48 from Kai-opens origin position, power is driven it via gear train 9 and is passed to gear 10 When passing and the current CCW counterclockwise of gear 10 being made to rotate 120 °, become out-open stop position.From opening-Kaiyuan point It sets out-opens between stop position, the tooth 28 of gear 10 is not contacted with the tooth 29 of gear 11.That is, opening origin position from Kai- It is opened between stop position to Kai-, gear 10 does not engage with gear 11.In addition, from Kai-open origin position to open-start-stop stops Between position, the contact portion 34 of gear 10 is not contacted with gear 12 by contact portion 35.That is, from Kai-open origin position to Kai-is opened between stop position, and gear 10 does not engage with gear 12.Therefore, origin position is being opened to opening-start-stop stop bit from Kai- Between setting, gear 11 and gear 13 do not rotate (moving in rotation), and the state of 6 both sides of opening-closing plate 5 and opening-closing plate is unchanged. Therefore, stop position is opened in Kai-, opening-closing plate 5 and 6 both sides of opening-closing plate are open position.

By further driving stepper motor 48 from Kai-opens stop position, power is driven it into one via gear train 9 Walk to gear 10 transmit and make gear 10 further counterclockwise CCW rotate 120 ° when, become close-open stop position.? Open stop position to closing-open stop position from Kai-, the tooth 28 of gear 10 and the tooth 29 of gear 11 contact, gear 11 to Clockwise direction CW rotation.That is, gear 10 and gear 11 block opening stop position to closing-opening stop position from Kai- It closes, the CW moving in rotation clockwise of gear 11.On the other hand, from Kai-open stop position to close-open stop position it Between, the contact portion 34 of gear 10 not with being contacted by contact portion 35 of gear 12 (as close-start-stop stop bit postpone contact portion 34 and Just started to contact by contact portion 35).That is, opening stop position to closing-open stop position from Kai-, gear 10 and gear 12 do not engage.Therefore, stop position is being opened to closing-opening stop position from Kai-, gear 11 rotates, and opening-closing plate 5 gradually closes It closes, gear 13 does not rotate (state of opening-closing plate 6 is unchanged).Therefore, stop position being closed-is opening, opening-closing plate 5 is closed position, Opening-closing plate 6 is open position.

Moreover, driving it power via gear train 9 by further driving stepper motor 48 from closing-opening stop position Further to gear 10 transmit and make gear 10 further counterclockwise CCW rotate 120 ° when, become and close-close origin position It sets.From closing ,-open stop position to close-is closed origin position, the tooth 28 of gear 10 and the tooth 29 of gear 11 do not contact. That is, from closing ,-open stop position to close-is closed origin position, gear 10 does not engage with gear 11.On the other hand, from - open stop position to close-is closed to close between origin position, the contact portion 34 of gear 10 and being contacted by contact portion 35 for gear 12, CCW rotates gear 12 counterclockwise.In addition, engaged by the tooth 31 of gear 12 with the tooth 32 of gear 13, gear 13 is to suitable Clockwise CW rotation.That is, from closing ,-open stop position to close-is closed origin position, and gear 10 engages with gear 12, And then gear 12 engages with gear 13.Therefore, from closing ,-open stop position to close-is closed origin position, gear 11 does not revolve Turn (state of opening-closing plate 5 is unchanged), but gear 13 rotates, opening-closing plate 6 progressively closes off.Therefore, close-close origin position, open Closing plate 5 and 6 both sides of opening-closing plate are closed position.

Here, from closing-close origin position via close-close stop position to open-close stop position, Yi Jicong Kai-opens origin position and opens stop position to closing-opening between stop position via Kai-, and gear 10 does not engage with gear 12.That is, In above-mentioned period, it is assumed that gear 12 does not rotate.The throttle setting 1 of the present embodiment have for above-mentioned period inhibit gear 12 by The Effect of Rotation of gear 10 and the press section 36 (Fig. 7, Fig. 8, Figure 15) of corotation.Press section 36 is pressed against on gear 12, thus Gear 12 will not by gear 10 Effect of Rotation and corotation.In addition, the press section 36 of the present embodiment is metal leaf spring, but not Be limited to the press section of this structure, such as the elastomers such as rubber also can be used etc..

In addition, as described above, gear 12 be configured to only when gear 10 in the rotating range of the gear 10, contact portion Premised on 34 pressings are rotated when being moved in the range of contact portion 35.But it presses in contact portion 34 by contact portion 35 In the range of other than range, the rotary force of gear 10 is via the lubricating grease (lubricant) etc. between the gear 10 and gear 12 Gear 12 is passed to, gear 12 may corotation.This is because due to the viscosity of the lubricating grease between gear 10 and gear 12 Resistance or resistance to sliding make the rotation of gear 10 that gear 12 can be made to follow rotation.

Therefore, as described above, the throttle setting 1 of the present embodiment is in contact portion 34 and the state that is not abutted by contact portion 35 Under, by contacting corner 54 to 12 service load of gear with press section 36, so that gear 12 will not be with the rotation of gear 10 Carry out corotation.

In this way, the throttle setting 1 of the present embodiment has the gear 10 as rotation gear, with contact portion 34, and with 12 common rotary axis 37 of gear, and the driving force of stepper motor 48 is passed to gear 13 via contact portion 34 by gear 10.Separately Outside, gear 12 is driven gear, has by contact portion 35, contact portion 34 and is contacted by contact portion 35, is passed through by contact portion 35 34 capacity of contact portion, thus gear 12 and gear 10, which interlock, rotates.

In addition, as shown in figure 15, when contact portion 34 the rotating range of gear 10 a part i.e. interlock range in (from Open-close stop position, which is opened between origin position to Kai-and from closing ,-open stop position to close-closes origin position) It when moving in rotation, contact portion 34 and is contacted by contact portion 35, when contact portion 34 is within the scope of the non-gearing for being detached from the gearing range (- origin position is closed to open-close stop position and from Kai-and opens origin position to closing-and open stop position from closing Between) moving in rotation when, contact portion 34 is released from by the contact of contact portion 35.Moreover, having for gear 12 in non-gearing Rotation in range prevents the press section 36 of the corotation because caused by assigning load.

Having throttle setting 1 as the present embodiment and transmission gear (gear 12) common rotary axis (rotary shaft 37) Rotation gear (gear 10) and transmission gear (gear 12) be with rotation gear (gear 10) interlock and contact portion 34 and by In the structure of the driven gear rotated within the scope of the gearing that contact portion 35 contacts, sometimes when contact portion 34 is in non-gearing range inward turning Transmission gear can corotation when transfer is dynamic.This is because producing frictional force between gear 10 and gear 12.But the present embodiment Throttle setting 1 have the press section 36 pressed gear 12, so, can inhibit contact portion 34 in non-gearing range When moving in rotation the case where 12 corotation of gear.

In addition, Figure 15 and Figure 25 are compared it is found that the movement of each gear of the throttle setting of reference example shown in Figure 25 with The movement of the corresponding each gear of the throttle setting 1 of the present embodiment is the same.It-closes origin position specifically, closing, close-and close Stop position, open-close stop position, Kai-open origin position, Kai-opens stop position and close-open in stop position each position , gear 10 and the position of gear 210, the position of gear 11 and gear 211, gear 12 and gear 212 position, 13 and of gear The position of gear 213 is the same.

- close origin position here, the gear 12 of the throttle setting 1 of the present embodiment is closing, close-close stop position and open- It closes rest position position to be limited by the second limiting unit 15b, Kai-opens origin position, Kai-opens stop position and closes-start-stop Stop bit is set place position and is limited by the limiting unit 15 (first limiting unit 15a) different from the second limiting unit 15b.On the other hand, it refers to Example throttle setting gear 212 no matter closing-close origin position, close-close stop position, open-close stop position, open- Origin position is opened, Kai-opens stop position and closes-open which of stop position place, position is by identical limitation Portion 15 (limiting unit 15e) limitation.Therefore, the throttle setting 1 of the present embodiment can disperse from corresponding with gear 12 and gear 212 Transmission gear acts on the power of limiting unit 15, so being the damage that can inhibit limiting unit 15 compared with the throttle setting of reference example The structure of wound.It, can will be from gear 12 in addition, the structure contacted by the peripheral part 38 for being set as gear 12 with limiting unit 15 The distance L1 of rotary shaft 37 to limiting unit 15 and the contact position of gear 12 is set as filling than the air door of reference example shown in Figure 25 Distance L2 long in setting.It therefore, is the structure that can inhibit the damage of limiting unit 15 compared with the throttle setting of reference example.

Then, it is illustrated from throttle setting 1 of other angles to the present embodiment.

Figure 16 (a)~Figure 16 (c) is the skeleton diagram for illustrating the throttle setting 1 of the present embodiment.Wherein, Figure 16 (a) is The skeleton diagram of the driving force transmission device 2 of the throttle setting 1 of the present embodiment.In addition, Figure 16 (b) is reference example shown in Figure 25 The skeleton diagram of the limiting unit 15e of throttle setting.In addition, Figure 16 (c) is the limit for indicating to be used as the limiting unit of the utility model The skeleton diagram of the example in portion processed.

As shown in Figure 16 (a), the first limiting unit 15a of the limiting unit 15 as the present embodiment has from 12 capacity of gear Direction F1 the length direction more orthogonal than with direction F1 length it is long and to extending from the direction side F1 of 12 capacity of gear The second structural portion 15a " as extended portion.Moreover, the side of slave transmission gear (gear 12) capacity of the second structural portion 15a " It is located on the extended line on the direction F1 with the contact position 41 of gear 12 of the first limiting unit 15a to the front end 62 of the side F1. When limiting unit 15 is the structure with extended portion, it is located on the direction F1 from 12 capacity of gear if it is front end 62 and connects The structure on the extended line of position 41 is touched, then the structure not being located at the front end 62 on the extended line of the contact position 41 It compares, can effectively accept the power received from transmission gear.Therefore, the throttle setting 1 of the present embodiment can by this second Structural portion 15 " effectively accepts the power received from gear 12, so as to inhibit the damage of limiting unit 15.

In addition, the first limiting unit 15a corresponds to above structure, the second limiting unit in the throttle setting 1 of the present embodiment 15b does not correspond to above structure, but as long as one in two limiting units 15 corresponds to above structure, it is practical new to then correspond to this Type.But if the both sides in two limiting units 15 both correspond to above structure, more preferably.

On the other hand, the limiting unit 15e of the throttle setting of reference example be formed in the circumferentially extended of gear 212 Shape channel-shaped the engaging of access 260 (referring to Figure 25).In addition, as shown in Figure 16 (b) and Figure 25, limiting unit 15e also with it is logical Road 260 correspondingly forms shape circumferentially.Moreover, the one end of the access 260 is corresponding with limiting unit 15e's One end (such as with the contact position 41 of Figure 16 (b)) abuts and rotation of the limiting gear 212 to a direction, the access 260 The other end is abutted with the other end (such as front end 62 of Figure 16 (b)) of the opposite side of the one end positioned at limiting unit 15e And limiting gear 212 is to the rotation with one side to opposite opposite direction.The one end of access 260 and the other end and The one end of limiting unit 15e and the other end are all formed as the radial substantially flat shape along gear 212.Moreover, access 260 one end and the one end of limiting unit 15e contact with each other on surface, the other end of access 260 and the other end of limiting unit 15e Portion contacts with each other on surface.

Limiting unit 15e is that front end 62 (the other end) is not located at and gear on the direction F3 from 212 capacity of gear The construction on extended line on the direction F3 of 212 contact position 41 (one end).Shown in Figure 16 (b) in limiting unit 15e Region S be located at outside the range in the region of the direction F3 of 212 capacity of gear, it is thus impossible to from front receive from gear 212 by The power arrived.In other words, there is the region S that cannot effectively accept the power received from gear 212.

The limiting unit 15f of structure shown in Figure 16 (c) is in that generally arcuate sigmoid is extended in a top view.Limiting unit 15f (extended portion) is also extension of the front end 62 on the direction F4 from 12 capacity of gear on the direction F4 of contact position 41 Therefore structure on line can effectively accept the power being subject to from gear 12, be able to suppress the damage of limiting unit 15.Limiting unit 15f also becomes the contact position 41 of the one end of limiting unit 15f and the front end 62 as another side is configured to each other Substantially parallel plane.By the contact position 41 of the limiting unit 15f in Figure 16 (c) and the two positions of the position of front end 62 In the case where the position rotated as limiting gear 12, the portion of 12 side of gear abutted with the contact position 41 of limiting unit 15f Position and with front end 62 abut position be also configured to as corresponding plane carry out face contact shape when, accept from transmitting tooth The power that wheel receives is effective.For example, in limiting unit 15e and limiting unit 15f situation identical with the contact area of incorporating section, Limiting unit 15f more can effectively accept the power received from transmission gear than limiting unit 15e.

In addition, the shape of limiting unit 15 also can be set to the shape other than arc-shaped as limiting unit 15f, such as can be with It is set as S word shape etc..As long as front end 62 is located at the direction F4 of contact position 41 on the direction F4 from 12 capacity of gear On extended line on structure, so that it may carry out various modifications.

Then, the embodiment of the throttle setting different from the throttle setting of embodiment 1 to structure is illustrated.

[embodiment 2] (Figure 17~Figure 22)

Figure 17~Figure 22 is the skeleton diagram for indicating the driving force transmission device 2 of the throttle setting of embodiment 2.Wherein, Figure 19 In~Figure 22, for easy understanding internal structure and omitting indicates a part of structure member.In addition, Figure 17 is and embodiment 1 The corresponding figure of Fig. 4 of driving force transmission device 2.In addition, Figure 18 is corresponding with Fig. 6 of driving force transmission device 2 of embodiment 1 Figure.In addition, Figure 21 is figure corresponding with Fig. 7 of driving force transmission device 2 of embodiment 1.In addition, Figure 22 is and embodiment 1 The corresponding figure of Fig. 8 of driving force transmission device 2.In addition, with the identical symbol table of the common structure member of above-described embodiment 1 Show, omits detailed description.

In addition, the throttle setting of the present embodiment is same with the throttle setting 1 of embodiment 1 in addition to driving force transmission device 2 The structure of sample.

As shown in Figure 17~Figure 22, such as the structure of each gear, in addition to the structure of limiting unit 15, the driving of the present embodiment Force transfering device 2 is structure identical with the driving force transmission device 2 of embodiment 1.

As shown in Figure 20~Figure 22, the limiting unit 15 of the present embodiment is by the first limiting unit 15c and the second limiting unit 15d structure At, wherein the first limiting unit 15c has the first structure portion extended to the direction different from the direction of capacity, that is, direction side F5 15c ' and the second structural portion 15c " extended to the direction side F5, the second limiting unit 15d have to direction, that is, direction with capacity The first structure portion 15d ' that the different direction side in the side F6 extends and the second structural portion 15d " extended to the direction side F6.The present embodiment Limiting unit 15 (the first limiting unit 15c and the second limiting unit 15d) be not the structure being connected with the wall portion 42 of incorporating section 14, but It, can be easily by being set as this structure when the structure that cannot ensure enough spaces for the inside of incorporating section 14 Form limiting unit 15.

[3~embodiment of embodiment 5] (Figure 23~Figure 24 (c))

Figure 23 is the skeleton diagram for indicating a part of driving force transmission device 2 of the throttle setting of embodiment 3, is and implementation The corresponding figure of Fig. 9 of the driving force transmission device 2 of example 1.In addition, Figure 24 (a)~Figure 24 (c) is to indicate 3~embodiment of embodiment 5 Driving force transmission device 2 a part skeleton diagram.Wherein, Figure 24 (a) is the embodiment 3 in Figure 23 from the D of direction The partial sectional view of driving force transmission device 2.In addition, Figure 24 (b) is the broken section of the driving force transmission device 2 of embodiment 4 Figure, is figure corresponding with partial sectional view i.e. Figure 24 (a) of driving force transmission device 2 of embodiment 3.Moreover, Figure 24 (c) is real The partial sectional view for applying the driving force transmission device 2 of example 5, be with the partial sectional view of the driving force transmission device 2 of embodiment 3 i.e. The corresponding figure of Figure 24 (a).In addition, the structure member common with above-described embodiment 1 and embodiment 2 is indicated with identical symbol, save Slightly it is described in detail.

In addition, in addition to driving force transmission device 2, the throttle setting of 3~embodiment of embodiment 5 is all and embodiment 1 The identical structure of throttle setting.

The throttle setting of 3~embodiment of embodiment 5 is provided with the reinforcement part 43 reinforced limiting unit 15.Therefore, real The throttle setting for applying 3~embodiment of example 5 is the structure that can particularly effectively inhibit the damage of limiting unit 15.

Hereinafter, successively illustrating the reinforcement part 43 of the throttle setting of 3~embodiment of embodiment 5.In addition, embodiment 3 and implementation The shape of the limiting unit 15 of the shape and embodiment 1 of the limiting unit 15 of example 5 is the same structure.

Firstly, as shown in Figure 23 and Figure 24 (a), limiting unit 15 (is specifically in the throttle setting of embodiment 3 The first structure portion 15a ' of one limiting unit 15a) abutted with from gear 12 and the opposite side in the side of capacity (direction F1's Downstream side) it is equipped with reinforcement part 43 (reinforcement part 43a).Here, the reinforcement part 43a of the present embodiment is formed in receipts as shown in Figure 24 (a) Receive portion 14 on the face 14b of the opposite side the setting face 14a of side of limiting unit 15.The reinforcement part 43a's of the present embodiment Being configured to can be by reinforcing the knot of the limiting unit 15 in the downstream side bearing limiting unit 15 of the direction F1 from 12 capacity of gear Structure.

Then, as shown in Figure 24 (b), the throttle setting of embodiment 4 (is seen face 14a in the position opposite with limiting unit 15 Part i.e. face 14b when making the bottom surface of incorporating section 14 as lid) it is equipped with reinforcement part 43 (reinforcement part 43b).In the limit of the present embodiment Portion 15 processed is equipped with protrusion 44, and the recess portion 45 that can be fitted into the protrusion 44 is equipped in the reinforcement part 43b of the present embodiment.Moreover, such as Figure 24 (b) shown in, the reinforcement part 43b of the present embodiment is formed in the opposite with the setting face 14a of side of limiting unit 15 of incorporating section 14 On the face 14b of side.The reinforcement part 43b of the present embodiment is configured to can be by accepting limitation via the recess portion 45 chimeric with protrusion 44 Reinforce the structure of the limiting unit 15 from the power that gear 12 receives in portion 15.

It is the structure that limiting unit 15 is equipped with protrusion, reinforcement part 43b is equipped with recess portion in addition, in the present embodiment, but can also be with It is the structure that limiting unit 15 is equipped with recess portion, reinforcement part 43b is equipped with protrusion.

Then, as shown in Figure 24 (c), the throttle setting of embodiment 5 is in limiting unit 15 from the side of 12 capacity of gear Opposite side, i.e. the face 14a of the side of the setting limiting unit 15 of incorporating section 14 are equipped with reinforcement part 43 (reinforcement part 43c).This implementation The reinforcement part 43c of example is configured to reinforce being somebody's turn to do and the downstream side bearing limiting unit 15 in the direction F1 from 12 capacity of gear The structure of limiting unit 15.

The utility model is not limited to the above embodiments, can be come in range without departing from the spirit with various structures real It is existing.For example, in order to solve the above-mentioned technical problem part or all or realize said effect part or all, with One column of utility model content record each mode in the corresponding embodiment of technical characteristic in technical characteristic can suitably replace, Combination.For example, the throttle setting of 1~embodiment of above-described embodiment 5 is that have two opening and closing members (opening-closing plate 5 and opening-closing plate 6) Structure but it is also possible to be the structure for only having an opening and closing member.In the case where only having the structure of an opening and closing member, The gear 12 as transmission gear and the gear 13 as output gear are not needed, it therefore, can be to as output gear The gear 11 of wheel transmits the driving force of driving source and limits the transmission gear of rotating range as gear 10 by limiting unit 15.

As long as can be fitted in addition, its technical characteristic is not illustrated as required feature in the present specification Work as deletion.

Claims

1. a kind of throttle setting, which is characterized in that have:

Driving source；

Opening and closing member, the opening and closing member are opened and closed by the driving force of the driving source；

The driving force of the driving source is output to the opening and closing member by output gear, the output gear；

The driving force of the driving source is passed to the output gear by transmission gear, the transmission gear；

Limiting unit, the limiting unit limit the rotating range of the transmission gear by contacting the transmission gear；And

Incorporating section, the incorporating section is provided with the limiting unit, and stores the output gear and the transmission gear,

The transmission gear is configured to by limiting rotating range from first position to the second position using the limiting unit Rotating range in rotation,

The limiting unit has an extended portion, the length ratio in the direction from the transmission gear capacity of the extended portion with from institute The length for stating the orthogonal direction in direction of transmission gear capacity is long, and the extended portion is to from the transmission gear capacity Direction side extends,

The front end of the direction side from the transmission gear capacity of the extended portion is from the transmission gear capacity On direction on the extended line with the contact position of the transmission gear of the limiting unit.

2. throttle setting according to claim 1, which is characterized in that

The limiting unit is the structure for limiting the rotation of the transmission gear by contacting the peripheral part of the transmission gear.

3. throttle setting according to claim 1, which is characterized in that

The transmission gear has contact surface corresponding with the limiting unit.

4. throttle setting according to claim 1, which is characterized in that

The limiting unit is connected with the wall portion of the incorporating section.

5. throttle setting according to claim 4, which is characterized in that

The wall portion is the periphery wall of the incorporating section.

6. throttle setting according to claim 4, which is characterized in that

The limiting unit is connected with multiple positions of the wall portion.

7. throttle setting according to claim 6, which is characterized in that

The limiting unit is rib shape.

8. throttle setting according to claim 1, which is characterized in that

The limiting unit is the position for deviateing the end of the limiting unit with the contact position of the transmission gear.

9. throttle setting according to claim 1, which is characterized in that

The limiting unit and the incorporating section are integrally formed.

10. throttle setting according to claim 1, which is characterized in that

Have rotation gear, which has a contact portion, and with the transmission gear common rotary axis, and connect via described The driving force of the driving source is passed to the transmission gear by contact portion,

The transmission gear is driven gear, and the transmission gear has by contact portion, the contact portion and described by contact portion Contact, it is described that the contact portion capacity is passed through by contact portion, so that the transmission gear and the rotation gear are interlocked and are rotated,

It is described to connect when contact portion moving in rotation in a part i.e. gearing range of the rotating range of the rotation gear Contact portion and it is described contacted by contact portion, when the contact portion deviate it is described interlock range non-gearing within the scope of moving in rotation When, the contact portion is released from described by the contact of contact portion,

The throttle setting has press section, and the press section turns for the transmission gear in non-interlock in range It is dynamic, prevent the corotation because caused by assigning load.

11. throttle setting according to claim 1, which is characterized in that

Has the reinforcement part reinforced the limiting unit.

12. throttle setting according to claim 1, which is characterized in that

At least one of the part of two faces intersection of the limiting unit is chamfered.

13. throttle setting described according to claim 1~any one of 12, which is characterized in that

The structure of the transmission gear are as follows: there is a part of concentric circles on the basis of by the rotary shaft of the transmission gear to set Engaging section with teeth is transmitted the driving force of the driving source by making the tooth engagement of the engaging section Yu the output gear To the output gear.

14. a kind of throttle setting, which is characterized in that have:

Driving source；

The limiting unit has first structure portion and the second structural portion, and the first structure portion is contacted with the transmission gear, and And to by and the transmission gear contact from the different direction side of the direction side of the transmission gear capacity and extend, institute The second structural portion is stated to the side contacted with the transmission gear by the first structure portion from the transmission gear capacity Extend to side.

15. throttle setting according to claim 14, which is characterized in that

16. throttle setting according to claim 14, which is characterized in that

The transmission gear has contact surface corresponding with the limiting unit.

17. throttle setting according to claim 14, which is characterized in that

18. throttle setting according to claim 17, which is characterized in that

The wall portion is the periphery wall of the incorporating section.

19. throttle setting according to claim 17, which is characterized in that

The limiting unit is connected with multiple positions of the wall portion.

20. throttle setting according to claim 19, which is characterized in that

The limiting unit is rib shape.

21. throttle setting according to claim 14, which is characterized in that

22. throttle setting according to claim 14, which is characterized in that

The limiting unit and the incorporating section are integrally formed.

23. throttle setting according to claim 14, which is characterized in that

24. throttle setting according to claim 14, which is characterized in that

Has the reinforcement part reinforced the limiting unit.

25. throttle setting according to claim 14, which is characterized in that

26. throttle setting described in any one of 4~25 according to claim 1, which is characterized in that