CN208858892U - Damping unit - Google Patents

Abstract

A kind of damping unit can inhibit the limiting unit of the rotating range of limiting gear to damage.Damping unit (1) has: driving source (48), the opening and closing member (6) being opened and closed by the driving force of driving source (48), the driving force of driving source (48) is transmitted to the gear (12) of opening and closing member (6), by contacting the limiting unit (15) come the rotating range of limiting gear (12) with gear (12), and the incorporating section (14) of storage gear (12) and limiting unit (15), limiting unit (15) and incorporating section (14) are separately formed, and it is formed by the rigidity material higher than the rigidity of incorporating section (14).

Description

Damping unit

Technical field

The utility model relates to a kind of damping units.

Background technique

Currently, using various damping units.In this damping unit, usually used various gears, but restricted gear Rotating range structure gear.For example, disclosing a kind of damping unit in patent document 1, structure is by making to be set to The stop of shell (incorporating section) is abutted to limit driving gear with the protrusion (restricting portion) of protrusion (limiting unit) and driving gear Rotating range.

Existing technical literature

Patent document

Patent document 1: Japanese Patent Laid-Open 2015-190604 bulletin

But in the damping unit as disclosed in patent document 1 that, the existing resistance of the rotating range of limiting gear In Buddhist nun's device, sometimes to the limiting unit applied force of the rotating range of limiting gear, which can generate damage.

Currently, the limiting unit of the rotating range about limiting gear, the easiness formed from it, with incorporating section (shell Body) integrally constituted (by material identical with incorporating section).In the case of that construction, when the restricting portion edge for being formed in gear When arrow direction multiple-contact cross sectional shape is the limitation face of substantially rectangular limiting unit, limiting unit can be from the receipts of limiting unit sometimes Receive portion lower face side occur fracture (damage).In addition, even if incorporating section lower face side formed curved surface (rounded shapes) with Just inhibit in the case where the following table surface damage limiting unit of incorporating section, it sometimes also can be from the end or and restricting portion of rounded shapes Contact portion end occur fracture (damage).

Utility model content

Therefore, the purpose of this utility model is that, the limiting unit of the rotating range of limiting gear is inhibited to damage.

The first method of the utility model provides a kind of damping unit, which is characterized in that has: driving source；Opening and closing member, The opening and closing member is opened and closed by the driving force of the driving source；Gear, the gear is by the driving force of the driving source It is transmitted to the opening and closing member；Limiting unit, the limiting unit is by limiting the rotation model of the gear with the Gear Contact It encloses；And the gear and the limiting unit, the limiting unit and the containing section bodily form are stored in incorporating section, the incorporating section At, and formed by the rigidity material higher than the rigidity of the incorporating section.

According to the method, limiting unit and separately formed and higher than the rigidity of incorporating section by the rigidity material shape in incorporating section At.Therefore, limiting unit damage can be effectively inhibited.

The damping unit of the utility model second method is on the basis of the first method, which is characterized in that the limit Portion processed relative to the incorporating section to be installed on the incorporating section in the state of multiple face contacts.

The limiting unit of the method relative to incorporating section to be installed on incorporating section in the state of multiple face contacts.I.e., it is possible to More firmly it is fixed on incorporating section.Therefore, limiting unit can be effectively inhibited and be detached from that (limiting unit and incorporating section connect from incorporating section Touch portion fractures).

The damping unit of the utility model Third Way is on the basis of the second method, which is characterized in that described Incorporating section forms the concave recess portion of installation direction of the oriented limiting unit, and the limiting unit is embedded in the recess portion and is installed on institute State recess portion.

The damping unit of the method recess portion concave in the installation direction that incorporating section forms oriented limiting unit, limiting unit insertion It is installed on the recess portion, so mounting structure of the limiting unit to incorporating section can be simply formed.

The damping unit of the utility model fourth way is on the basis of the first method, which is characterized in that the limit Portion processed has with the contact portion of the Gear Contact, the fixed part fixed relative to the incorporating section and from the contact portion Extend to the extension of the fixed part, the contact area of the fixed part and the incorporating section is than the contact portion and described prolongs The area of the boundary part of extending portion is big.

The limiting unit of the method have the fixed part being fixed with the contact portion of Gear Contact, relative to incorporating section, with And the extension of fixed part is extended to from contact portion, the boundary of the contact area of fixed part and incorporating section than contact portion and extension Partial area is big.Therefore, limiting unit can particularly effectively be inhibited to be detached from (the contact portion of limiting unit and incorporating section from incorporating section Disjunction is split).

The damping unit of the 5th mode of the utility model in the first~fourth way on the basis of either type, It is characterized in that, the limiting unit is formed by metal.

The limiting unit of the method is formed by metal, so the high limiting unit of rigidity can be simply formed.

The damping unit of the 6th mode of the utility model in the described first~the 5th mode on the basis of either type, It is characterized in that, the rotary shaft of the limiting unit and the gear is integrally formed.

In the damping unit of the method, because limiting unit and the rotary shaft of gear are integrally formed, it is able to suppress composition Component increases.

The damping unit of the 7th mode of the utility model in the described first~the 5th mode on the basis of either type, It is characterized in that, the limiting unit and the rotary shaft of the gear are separately formed.

In the damping unit of the method, because limiting unit and the rotary shaft of gear are separately formed, it is possible to simply will Limiting unit is set as suitable shape.

The damping unit of the utility model eighth mode in the described first~the 7th mode on the basis of either type, Be characterized in that, the damping unit has: the driving force of the driving source is output to described by output gear, the output gear Opening and closing member；And transmission gear, the driving force of the driving source is transmitted to the output gear by the transmission gear, described Limiting unit is configured to rotating range of the limitation as the transmission gear of the gear.

According to the method, the output gear of opening and closing member is output to and by driving source having the driving force by driving source Driving force is transmitted in the structure of the transmission gear of output gear, can effectively inhibit the limiting unit (rotation of limitation transmission gear Turn the limiting unit of range) damage.

The damping unit of the 9th mode of the utility model is on the basis of the eighth mode, which is characterized in that the resistance Buddhist nun's device has a rotation gear, and the rotation gear has a contact portion, and with the transmission gear common rotary axis, via described The driving force of the driving source is transmitted to the transmission gear by contact portion, and the transmission gear is driven gear, with quilt Contact portion, the contact portion and it is described by contact portion contact and it is described by contact portion by the contact portion capacity, thus It is rotated with rotation gear gearing, when the contact portion is in a part as the rotating range for rotating gear When interlocking range moving in rotation, the contact portion and it is described contacted by contact portion, when the contact portion is being detached from the gearing model When the non-gearing range moving in rotation enclosed, the contact portion is released from described by the contact of contact portion.

According to the method, in being also equipped with the so-called double damping units for rotating gear with transmission gear common rotary axis, Limiting unit damage can be effectively inhibited.

The damping unit of the utility model can inhibit the limiting unit of the rotating range of limiting gear to damage.

Detailed description of the invention

Fig. 1 is the approximate stereogram for indicating to have an example of the device of the damping unit of the embodiments of the present invention 1.

Fig. 2 is the decomposition approximate stereogram for indicating the damping unit of the embodiments of the present invention 1.

Fig. 3 is the approximate vertical view for indicating the driving force transmission device of damping unit of the embodiments of the present invention 1.

Fig. 4 is the approximate stereogram for indicating the driving force transmission device of damping unit of the embodiments of the present invention 1.

Fig. 5 is the approximate vertical view for indicating the driving force transmission device of damping unit of the embodiments of the present invention 1.

Fig. 6 is the approximate stereogram for indicating the driving force transmission device of damping unit of the embodiments of the present invention 1.

Fig. 7 is the approximate stereogram for indicating the limiting unit and rotary shaft of the damping unit of the embodiments of the present invention 1.

Fig. 8 is the outline bottom view for indicating the transmission gear of damping unit of the embodiments of the present invention 1.

Fig. 9 is the approximate stereogram for indicating the transmission gear of damping unit of the embodiments of the present invention 1.

Figure 10 is the approximate stereogram for indicating the transmission gear of damping unit of the embodiments of the present invention 1.

Figure 11 is the outline for indicating a part of the driving force transmission device of damping unit of the embodiments of the present invention 1 Top view.

Figure 12 is each gear of the driving force transmission device for illustrating the damping unit of the embodiments of the present invention 1 The skeleton diagram of movement.

Figure 13 is the outline for indicating a part of the driving force transmission device of damping unit of the embodiments of the present invention 2 Perspective view.

Figure 14 is the outline for indicating a part of the driving force transmission device of damping unit of the embodiments of the present invention 3 Perspective view.

Figure 15 is the outline for indicating a part of the driving force transmission device of damping unit of the embodiments of the present invention 3 Side view cutaway drawing.

Figure 16 is the outline for indicating a part of the driving force transmission device of damping unit of the embodiments of the present invention 3 Side view cutaway drawing.

Figure 17 is the approximate vertical view for indicating the driving force transmission device of damping unit of the embodiments of the present invention 4.

(symbol description)

1 ... damping unit, 2 ... driving force transmission devices, 3 ... first frames, 4 ... second the frames, (opening and closing of 5 ... opening-closing plates Component), 6 ... opening-closing plates (opening and closing member), 7 ... opening portions, 8 ... opening portions, 9 ... gear trains, 10 ... gears (rotation gear), 11 ... gears (output gear), 12 ... gears (transmission gear, driven gear), 13 ... gears (output gear), 14 ... incorporating sections, The bottom surface of the incorporating section 14a ..., 15 ... limiting units, 15a ... limiting unit, 15b ... limiting unit, 15c ... limiting unit, 15d ... limiting unit, 15e ... limiting unit, 15f ... limiting unit, 15g ... limiting unit, 16 ... rotary shafts, 17 ... gears, 18 ... first gears, 19 ... major diameters Gear part, 20 ... small-diameter gear portions, 21 ... second gears, 22 ... large diameter gear portions, 23 ... small-diameter gear portions, 24 ... third teeth Wheel, 25 ... large diameter gear portions, 26 ... small-diameter gear portions, 27 ... teeth, 28 ... teeth, 29 ... teeth, 30 ... rotary shafts, 31 ... teeth, 32 ... Tooth, 33 ... rotary shafts, 34 ... contact portions, 35 ... by contact portion, 36 ... press sections, 37 ... rotary shafts, the periphery of 38 ... gears 12 Portion, 48 ... stepping motors (driving portion), 51 ... major diameter arc sections, 52 ... path arc sections, 53 ... flat parts, 54 ... corners, 55 ... relief portion, 56 ... mounting surfaces, 59 ... circumferential parts, 61 ... planar portions, the mounting portion of 70 ... rotary shafts, 71 ... limitation faces, 72 ... recess portions, 73 ... protrusions, 74 ... by limitation face, 75 ... recess portions, the lower surface of 76 ... limiting units, the side of 77 ... recess portions, The bottom surface of 78 ... recess portions, the +X direction side end of 79 ... rotary shafts, 80 ... circular hole portions, 81 ... the through holes passed through for rotary shaft, 82 ... restricting portions, 83 ... ribs, 84 ... recess portions, 90 ... contact portions, 91 ... extensions, 92 ... fixed parts, 93 ... pressurized parts, 94 ... embedding parts, 101 ... refrigerators, 102 ... refrigerating chambers, 103 ... freezing chambers, 104 ... vegetable compartments, 105 ... coolers, 106 ... drums Blower, 107 ... damping units, 108 ... damping units, AF ... air-flow

Specific embodiment

Hereinafter, the damping unit 1 to an embodiment of the present invention is illustrated.

[embodiment 1] (Fig. 1~Figure 12)

Firstly, illustrating the summary of the damping unit 1 of embodiment 1.

Fig. 1 is to indicate to have the skeleton diagram of the refrigerator 101 of an example of the device of damping unit 1 of the present embodiment (part is vertical Body figure).

In addition, Fig. 2 is the skeleton diagram of the damping unit 1 of the present embodiment, indicate to remove the first frame from driving force transmission device 2 State after frame 3 and the second frame 4.

As shown in Figure 1, the damping unit 1 of the present embodiment can use in refrigerator 101 is equal.The damping for having the present embodiment The refrigerator shown in FIG. 1 101 of device 1 has refrigerating chamber 102, freezing chamber 103 and vegetable compartment 104.The structure of refrigerator 101 is energy It is enough that air-flow AF is made by air blower 106 in the cold air generated by cooler 105, via damping unit 1, other damping units 107 and damping unit 108, air-flow AF is imported into refrigerating chamber 102, freezing chamber 103 and vegetable compartment 104.

But the device for having the damping unit 1 of the present embodiment is not limited to refrigerator.In addition, having the damping of the present embodiment The structure of the refrigerator of device 1 is not limited to structure shown in FIG. 1.

As shown in Fig. 2, the damping unit 1 of the present embodiment has driving force transmission device 2 and is configured at driving force transmitting The first frame 3 and the second frame 4 of the two sides of device 2.First frame 3 has opening portion 7, by by driving force transmission device 2 The opening-closing plate 5 that the opening portion 7 is opened and closed in the driving force of transmitting.Second frame 4 has opening portion 8, by being passed by driving force The opening-closing plate 6 that the opening portion 8 is opened and closed in the driving force that delivery device 2 transmits.

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 (+Z direction, which is with the first frame 3, to be right side and is left side and top when from +Y direction with the second frame 4 in the direction of friendship To -Z direction is its opposite direction).

Opening-closing plate 5 and opening-closing plate 6 as opening and closing member are configured to, and are equipped with rotary shaft (not shown) at one end, and logical Crossing the driving force transmitted by driving force transmission device 2 can be rotated on the basis of the rotary shaft.In addition, Fig. 2 indicates opening and closing Plate 5 and opening-closing plate 6 are in the state of open position.

In the damping unit 1 of the present embodiment, as the opened and closed positions of opening-closing plate 5 and opening-closing plate 6, both sides can be used to close Closed position, a side are open position and another party is closed position, both sides are open position, a side is closed position and another party For this four states of open position.Moreover, refrigerator 101 uses such four states by damping unit 1, can adjust to cold The air-flow AF of room 102, freezing chamber 103 and the importing of vegetable compartment 104 is hidden (that is, refrigerating chamber 102, freezing chamber 103 and vegetables can be adjusted The temperature of room 104).In addition, in the refrigerator 101 of the present embodiment, in addition to the state (standard-sized sheet in opening-closing plate 5,6 standard-sized sheet of opening-closing plate Position) or opening-closing plate 5,6 completely closed state of opening-closing plate (full close position) under except use, can also be in opening-closing plate 5, opening and closing It is used in the state that state or opening-closing plate 5 that plate 6 is not exclusively opened, opening-closing plate 6 are not fully closed.

Next, being carried out in detail to the driving force transmission device 2 of the major part of the damping unit 1 as the present embodiment Explanation.

Here, Fig. 3~Fig. 6 is the skeleton diagram of the driving force transmission device 2 of the damping unit 1 of the present embodiment.Wherein, Fig. 3 It is the approximate vertical view of the driving force transmission device 2 from the direction along direction X.In addition, Fig. 4 is driving force transmission device 2 approximate stereogram indicates the shape for floating gear 10 and gear 11 to be readily understood by the structure of gear 12 and gear 13 State.In addition, Fig. 4 indicates that gear 12 is in the state of first position.Moreover, Fig. 5 is by the gear other than gear 12 and gear 13 State after removing is the approximate vertical view of the driving force transmission device 2 from the direction along direction X, indicates gear 12 State in the second position.Moreover, Fig. 6 is indicated relative to Fig. 5 further by gear 12, gear 13, gear 10 and gear 12 Rotary shaft 37 remove after state.

In addition, Fig. 7 indicates the limiting unit 15 (limiting unit 15a) for being integrally formed the moving in rotation range of restricted gear 12 The approximate stereogram of rotary shaft 37.

In addition, Fig. 8~Figure 10 is the skeleton diagram of gear 12, Fig. 8 is the bottom view of gear 12, and Fig. 9 is from bottom surface side Gear 12 perspective view, Figure 10 is the perspective view of the gear 12 from upper surface side.

As shown in Figures 3 and 4, the driving force transmission device 2 of the present embodiment has the stepping motor 48 as driving source. Stepping motor 48 formed have be equipped with gear 17 rotary shaft 16 and can make rotary shaft 16 rotate forward and reverse can be two-way The structure of rotation.

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

In addition, the driving force transmission device 2 of the present embodiment has gear train 9, the gear train 9 is by the rotation of stepping motor 48 Turn to be transmitted after (rotation of rotary shaft 16) slows down.Gear train 9 is by first gear 18, second gear 21 and third gear 24 It constitutes.First gear 18 has the large diameter gear portion 19 of the teeth portion engaged with gear 17, leans on set on than large diameter gear portion 19 The small-diameter gear portion 20 of the position of inner circumferential side.

In addition, second gear 21 has the large diameter gear portion 22 engaged with the small-diameter gear portion 20 of first gear 18, 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 has the large diameter gear portion 25 engaged with the small-diameter gear portion 23 of second gear 21, is set to 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 uses this 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.Gear 10 have set on peripheral part and engaged with small-diameter gear portion 26 tooth 27, set on the position than the inner side of tooth 27 simultaneously And the tooth 28 of a part set on concentric circles, that is, circumferential part 59 on the basis of rotary shaft 37.In addition, gear 10 on the X of direction with Forming with teeth 28 side opposite side has contact portion 34, and the details of the contact portion 34 are described later on (referring to Fig.1 2).

Moreover, the driving force transmission device 2 of the present embodiment has the gear that can be rotated on the basis of rotary shaft 30 11, which is the rotary shaft shared with the rotary shaft of the opening-closing plate 5 in the first frame 3.Gear 11, which has, is set to periphery Portion and the tooth 29 engaged with tooth 28.The moving in rotation of opening-closing plate 5 and gear 11 is synchronously carried out moving in rotation.

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, constituting in the lower part (+X direction side) for being configured to tooth short in the+x direction has the length of peripheral direction short Abut tooth.Since gear 11 has this structure, so that tooth 28 connects with tooth 29 when tooth 28 is in the position engaged with tooth 29 Touching, in tooth 28 not at the position engaged with tooth 29, not formed with teeth 28 part of circumferential part 59 abuts tooth contact with this. That is, gear 11 is constrained and positioned by tooth 28 when tooth 28 is in the position engaged with tooth 29, do not engaged with tooth 29 in tooth 28 When position, gear 11 is positioned by not formed with teeth 28 partially restrained of circumferential part 59.With this configuration, gear 11 is always It is contacted with gear 10, to without shaking efficiently be positioned.

In addition, as shown in Figures 4 and 5, the driving force transmission device 2 of the present embodiment has can be on the basis of rotary shaft 37 The gear 12 rotated, rotary shaft 37 are the rotary shafts shared with the rotary shaft of gear 10.Gear 12, which has, to be set to rotation The tooth 31 of a part of the concentric circles on the basis of axis 37, set on across rotary shaft 37 and 31 opposite side of tooth by contact portion 35.? This, gear 12 is constituted are as follows: in the state that the contact portion 34 (referring to Fig.1 2) of gear 10 by contact portion 35 with being contacted, by contact portion 34 press the driven rotation with the rotation of gear 10 by contact portion 35 to direction of rotation.

Moreover, the driving force transmission device 2 of the present embodiment has the gear that can be rotated on the basis of rotary shaft 33 13 (fan gears), the rotary shaft 33 are the rotary shafts shared with the rotary shaft of the opening-closing plate 6 of the second frame 4.The gear 13 For rotary shaft 33 in the state of with the assembling of the rotary shaft 30 of above-mentioned gear 11, shaft core position is consistent.Gear 13 has set on outer Circumference 38 and the tooth 32 engaged with tooth 31.The tooth 32 throughout whole circumference nor being arranged but circumferential a part being arranged in In range.The moving in rotation of opening-closing plate 6 and gear 13 is synchronously carried out moving in rotation.

In addition, as shown in Fig. 3~Fig. 6, the driving force transmission device 2 of the present embodiment has storage stepping motor 48, tooth The incorporating section 14 of train 9, gear 10, gear 11, gear 12 and gear 13 etc..Moreover, as shown in fig. 6, incorporating section 14 bottom Face 14a is formed with the mounting portion 70 of rotary shaft 37.In addition, the mounting portion 70 of the present embodiment is integrally formed with incorporating section 14, but It is also possible to that the structure of the mounting portion 70 as separate part is installed in incorporating section 14.

In addition, as shown in fig. 7, being integrally formed rotary shaft 37 and limiting unit in the driving force transmission device 2 of the present embodiment 15 (limiting unit 15a), but as shown in fig. 6, be formed in mounting portion 70 corresponding with the +X direction side of rotary shaft 37 and limiting unit 15a Shape recess portion 72.The +X direction side end 79 of rotary shaft 37 is inserted into the circular hole portion 80 of mounting portion 70 (recess portion 72), also, The lower surface 76 of limiting unit 15a is contacted with the bottom surface 78 of recess portion 72, the limitation face 71 of the side as limiting unit 15a and recess portion 72 Side 77 contact, rotary shaft 37 and limiting unit 15a are firmly fixed at mounting portion 70 as a result,.

Here, being further illustrated to gear 12.As shown in Fig. 8~Figure 10, at one of the composition periphery of gear 12 The a part for the path arc sections 52 divided has the tooth 31 engaged with the tooth 32 of gear 13.It is integrally revolved in gear 12 and gear 10 When turning, tooth 31, which is rotated, is transmitted to gear 13.Here, because the rotary shaft 33 of gear 13 is total with the rotary shaft of opening-closing plate 6 Rotary shaft, so being rotated by gear 13, opening-closing plate 6 is opened and closed.

In addition, as described above, the precondition of the composition of gear 12 is, only gear 10 the gear 10 rotating range Middle contact portion 34 is rotated when pressing mobile by the range of contact portion 35.But it presses in contact portion 34 by contact portion 35 The rotary force of range other than range, gear 10 is transmitted via the grease (lubricant) etc. between the gear 10 and gear 12 To gear 12, gear 12 is possible to corotation.

It therefore, is the structure for being able to suppress the corotation of gear 12 in the driving force transmission device of the present embodiment 2.Specifically For, as shown in Fig. 8~Figure 10, a part of gear 12 around gear 12 has the distance away from rotary shaft 37 than path circle The major diameter arc sections 51 (cam surface) of distance of the arc portion 52 away from rotary shaft 37.Moreover, as shown in figure 5, driving force transmission device 2 Has the press section 36 as leaf spring in the position that major diameter arc sections 51 and aftermentioned corner 54 contact.

Here, gear 12 is by major diameter arc sections 51, path arc sections 52 and connection major diameter arc sections 51 and path circular arc The planar portions 61 of the shape cut off by substantially straight line in portion 52 constitute peripheral part 38.In addition, path arc sections 52 and planar portions 61 Between not formed step but it is swimmingly continuous, and corner 54 is formed between major diameter arc sections 51 and planar portions 61.That is, Major diameter arc sections 51 are located between two corners 54.

Gear 12 is configured to, and (applies load, so that tooth by the pressing of press section 36 as leaf spring by major diameter arc sections 51 Wheel 12 will not because of the rotary force of gear 10 due to corotation) inhibit corotation.Specifically, it is constructed as follows: being limited in gear 12 When state (referring to Fig. 5) that portion 15 limits, thus 54 pressed portion 36 of corner pressing inhibits 12 corotation of gear.But it presses The structure in portion is not limited to such leaf spring.Such as be also possible to the elastomers such as rubber etc., as long as load can be applied to gear 12 ?.Do not make the cam surface of press section Yu peripheral part 38 alternatively, it is also possible to being, and makes press section and constitute rotary shaft 37 The structure etc. of axle portion contact.

In addition, when the pressing of contact portion 34 is mobile by the range of contact portion 35 in the rotating range of gear 10 for gear 10, 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, so gear 12 is with gear 10 rotation and rotate.At this point, cam surface (major diameter arc sections 51) slides on press section 36.

In addition, if being illustrated with other expression ways to the corotation for inhibiting gear 12, as described below.

As shown in Figure 10, gear 12 is configured to, on the axis direction of rotary shaft 37, in upside (-X direction side and mounting The side of gear 10) it is formed with the mounting surface 56 that can load gear 10, and by contact portion 35 from the flat part 53 of the gear 12 The position more upper than mounting surface 56 is extended to upside.Moreover, being limited in the gear 12 as described above, have corner 54 In the state that portion 15 processed limits, which is applied load from press section 36, thus prevents corotation, and have major diameter arc sections 51, when being connected to contact portion 34 by contact portion 35 and being rotated, which slides on press section 36.Moreover, big Diameter arc sections 51 are formed as constituting the curved surface of circular arc, via the coupling part and corner 54 in major diameter arc sections 51 and corner 54 and flat The coupling part of face 61, major diameter arc sections 51 become and the continuous face of planar portions 61.

In the coupling part in major diameter arc sections 51 and corner 54 and corner 54 and the coupling part of planar portions 61, major diameter circular arc The coupling part in portion 51 and corner 54 is located at radial outside (distance away from rotary shaft 37).Therefore, it is intended to get over by press section 36 Resistance when crossing corner 54 prevents corotation.

In addition, the path arc sections 52 of flat part 53 are in addition to the forming region of tooth 31, upside as shown in Fig. 8~Figure 10 (-X direction side) constitutes peripheral part 38 with planar portions 61, corner 54 and major diameter arc sections 51 together, but downside (+X direction side) is whole It is on body arc-shaped (cylindric).Specifically, as can be seen from figures 8 and 9, it is small to be formed with composition in the lower part of major diameter arc sections 51 The relief portion 55 of the circular arc of diameter arc sections 52.In addition, the path arc sections 52 only have tooth in a part of region of circumferencial direction 31。

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 is 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 for having peripheral direction in the lower part (+X direction side) for being configured to tooth short in the+x direction Short abutting tooth.This structure is used by gear 13, when tooth 31 is in the position engaged with tooth 32, tooth 31 and tooth 32 are connect Touching, in tooth 31 not at the position engaged with tooth 32, not formed with teeth 31 part of path arc sections 52 and the abutting toe joint Touching.That is, gear 13 is constrained and positioned by tooth 31, does not nibble with tooth 32 in tooth 31 when tooth 31 is in the position engaged with tooth 32 When the position of conjunction, positioned by not formed with teeth 31 partially restrained of path arc sections 52.Through this structure, gear 13 Always it is contacted with gear 12, to without shaking efficiently be positioned.

Hereinafter, being further illustrated to the relationship of gear 12 and limiting unit 15.

Here, Figure 11 is the positional relationship for indicating limiting unit 15 and gear 12 in the state that gear 12 is in first position Approximate vertical view.In addition, Figure 11 is part (gear 12) perspective view for being had an X-rayed, to understand limiting unit 15 and gear 12 The positional relationship of restricting portion 82.

As can be seen from figures 8 and 9, the gear 12 of the present embodiment is formed with around the through hole 81 passed through for rotary shaft 37 The restricting portion 82 of restricting portion 15a limitation.Restricting portion 82 is to the concave recess portion 75 of +X direction, outstanding to -X direction Protrusion 73, being constituted by limitation face 74 as the boundary face (wall portion) of recess portion 75 and protrusion 73.Moreover, as shown in figure 11, in tooth When wheel 12 is in the state of first position, the side in the limitation face 71 and restricting portion 82 of the side of limiting unit 15a is limited Face 74 abuts, the thus movement on the direction of rotation for being intended to rotate to the abutting direction of limiting gear 12.In addition, at gear 12 When the state of the second position, pass through being limited for the other side in the limitation face 71 and restricting portion 82 of the other side of limiting unit 15a Face 74 processed abuts, the movement on the direction of rotation for being intended to rotate to the abutting direction of limiting gear 12.

In addition, as described above, the driving force transmission device 2 of the present embodiment have storage stepping motor 48, gear train 9, The incorporating section 14 of gear 10, gear 11, gear 12 and gear 13 etc..Incorporating section 14 is made by resin material in the present embodiment, But it is not limited to resin material, can also be made by other materials, such as metal material, as long as limiting unit 15 is by rigidity than storage The high material formation of the rigidity in portion 14.In addition, the limiting unit 15 of the present embodiment is made by metal, but it is not limited to metal material Material can also make by other materials, such as resin material, as long as limiting unit 15 is higher than the rigidity of incorporating section 14 by rigidity Material formation.

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 12 is the general of the movement for each gear for the driving force transmission device 2 for illustrating the damping unit 1 of the present embodiment Sketch map.In addition, 12 partial perspective of gear is shown in Figure 12, make it easy to the knot for understanding limiting unit 15 (limiting unit 15a) Structure.

It as shown in figure 12, is closed position in opening-closing plate 5 and 6 both sides of opening-closing plate in the damping unit of the present embodiment 1 Close-when closing origin position, the tooth 28 of gear 10 is located at opposite side across rotary shaft 37 relative to gear 11.In this state, tooth In tooth 31, relative to the tooth 28 of gear 10, CW has rotated 120 ° of position to wheel 12 clockwise.Here, close-close origin The configuration of the gear 11 of position and opening-closing plate 5 are that the state of closed position is corresponding, close-close the gear 13 of origin position configuration and Opening-closing plate 6 is that the state of closed position is corresponding.

Here, in the damping unit 1 of the present embodiment, the fully open position of first position (corresponding with Figure 11) and opening-closing plate 6 Corresponding, the second position (corresponding with Fig. 5) and full close position are corresponding.When make first position and the second position and Figure 12 to it is corresponding when One position (fully open position of opening-closing plate 6) with Kai-opens origin position, Kai-opens stop position and closes-open stop position (Figure 12 Three, right side) it is corresponding.On the other hand, the second position (full close position of opening-closing plate 6) closes and stops with-close origin position, close-is closed Stop bit is set and open-close stop position (three, the left side of Figure 12) is corresponding.

When from close-close origin position, drive stepping motor 48 and drive it power via gear train 9 and be transmitted to tooth Wheel 10 and make gear 10 clockwise CW rotate 120 ° when, become close-close stop position.From close-close origin position To closing-closing 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 and gear 11 do not engage.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 and gear 12 do not engage.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 does not change.Cause This is closing-is closing stop position, and opening-closing plate 5 and 6 both sides of opening-closing plate are closed position.

When from close-close stop position, further drive stepping motor 48 and via gear train 9 drive it power into One step be transmitted to gear 10 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 CCW rotates counterclockwise.That is, from closing-closing stop position to open-close stop position, gear 10 and gear 11 Engaging, the CCW moving in rotation counterclockwise of gear 11.On the other hand, from closing-closing stop position to open-close stop position Between setting, the contact portion 34 of gear 10 (after reaching open-close stop position, is not contacted with being contacted by contact portion 35 for gear 12 Portion 34 and be just in contact with each other by contact portion 35).That is, from closing-closing stop position to open-close stop position, gear 10 Do not engage with gear 12.Therefore, from closing-closing stop position to open-close stop position, gear 11 is rotated and is opened and closed Plate 5 is opened, and gear 13 does not rotate (state of opening-closing plate 6 does not change).Therefore, in open-close stop position, opening-closing plate 5 is to beat Open position, opening-closing plate 6 are closed position.

From open-close stop position, further drive stepping motor 48 and via gear train 9 drive it power into When one step is transmitted to gear 10 and makes gear 10 further CW rotates 120 ° clockwise, become 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 to Kai-open between origin position, gear 10 and gear 11 do not engage.On the other hand, from open-close Stop position is opened between origin position to Kai-, the contact portion 34 of gear 10 and being contacted by contact portion 35 for gear 12, gear 12 CW rotates clockwise.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 and gear 12 engage, and gear 12 and gear 13 engage.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 does not change), but the rotation of gear 13 and the opening of opening-closing plate 6.Therefore, origin position, opening-closing plate 5 are opened in Kai- And 6 both sides of opening-closing plate are open position.

From Kai-opens origin position, drives stepping motor 48 and drive it power via gear train 9 and be transmitted to tooth Wheel 10 becomes out-open stop position when this makes gear 10 CCW rotates 120 ° counterclockwise.From opening-Kaiyuan point Position is opened between stop position to Kai-, and the tooth 28 of gear 10 is not contacted with the tooth 29 of gear 11.That is, from opening-Kaiyuan point It sets out-opens between stop position, gear 10 and gear 11 do not engage.In addition, opening origin position to opening-start-stop from Kai- Between stop bit is set, 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 does not change. Therefore, stop position is opened in Kai-, opening-closing plate 5 and 6 both sides of opening-closing plate are open position.

From Kai-opens stop position, further drives stepping motor 48 and drive it power via gear train 9 Be further transferred to gear 10 and make gear 10 further counterclockwise CCW rotate 120 ° when, become and close-start-stop stop bit It sets.Stop position is being opened to closing-opening stop position from Kai-, and the tooth 28 of gear 10 and the tooth 29 of gear 11 contact, gear 11 CW rotations clockwise.That is, opening stop position to closing-open stop position from Kai-, gear 10 and gear 11 Engage and the CW moving in rotation clockwise of gear 11.On the other hand, from Kai-open stop position to close-start-stop stops Between position, the contact portion 34 of gear 10 not with being contacted by contact portion 35 of gear 12 (reach close-open stop position after, connect Contact portion 34 and be just in contact with each other by contact portion 35).That is, opening stop position to closing-open between stop position from Kai-, gear 10 do not engage with gear 12.Therefore, stop position is being opened to closing-opening stop position from Kai-, gear 11 is rotated and opened Closing plate 5 is closed, and gear 13 does not rotate (state of opening-closing plate 6 does not change).Therefore, stop position is being closed-is opening, opening-closing plate 5 is Closed position, opening-closing plate 6 are open position.

Moreover, when from close-open stop position, further drive stepping motor 48 simultaneously driven it via gear train 9 Power be further transferred to gear 10 and make gear 10 further counterclockwise CCW rotate 120 ° when, become close-close origin Position.From closing ,-open stop position to close-is closed origin position, the tooth 28 of gear 10 is not contacted with the tooth 29 of gear 11. 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 It closes-open stop position to close-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 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 does not change), but the rotation of gear 13 and the closing of opening-closing plate 6.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, Assume that gear 12 does not rotate between above-mentioned position.The damping unit 1 of the present embodiment has press section 36, which is used for Inhibit between above-mentioned position gear 12 by gear 10 Effect of Rotation and corotation (Fig. 5 and Figure 12).It is pressed by press section 36 Gear 12, gear 12 will not by gear 10 Effect of Rotation and corotation.In addition, the press section 36 of the present embodiment is metal plate Spring, the press section being not limited to this structure, for example, it is also possible to use elastomers such as rubber etc..

In addition, as described above, the precondition of the composition of gear 12 is, only gear 10 the gear 10 rotating range Middle contact portion 34 is rotated when pressing mobile by the range of contact portion 35.But it presses in contact portion 34 by contact portion 35 The rotary force of range other than range, gear 10 is transmitted via the grease (lubricant) etc. between the gear 10 and gear 12 To gear 12, gear 12 is possible to corotation.This is because the viscous drag or cunning of the grease between gear 10 and gear 12 Dynamic resistance can be such that gear 10 rotates, and gear 12 follows rotation as a result,.

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

In this way, the damping unit 1 of the present embodiment has the gear 10 as rotation gear, which has contact portion 34, rotary shaft 37 and gear 12 be it is shared, the driving force of stepping motor 48 is passed into gear 13 via contact portion 34.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 rotates to interlock with gear 10.

In addition, being such as flowering structure as shown in figure 12, when contact portion 34 is interlocked in a part of the rotating range of gear 10 (- open between origin position and from close-opens stop position to closing-close origin position to range from open-close stop position to Kai Between setting) moving in rotation when, contact portion 34 is contacted with by contact portion 35, when contact portion 34 be detached from the gearing range non-gearing Range (opens origin position to closing-start-stop stop bit between open-close stop position and from Kai-from closing-closing origin position Between setting) moving in rotation when, contact portion 34 is released from by the contact of contact portion 35.Moreover, have press section 36, the press section 36 prevent its corotation and the rotation of the non-gearing range to gear 12 assigns load.

As the damping unit 1 of the present embodiment, have and transmission gear (gear 12) common rotary axis (rotary shaft 37) Rotation gear (gear 10), transmission gear (gear 12) be with rotation gear (gear 10) interlock and contact portion 34 and by The driven gear for the gearing range rotation that contact portion 35 contacts, in this configuration, occasionally there are such situations: working as contact portion 34 in non-gearing range moving in rotation, and transmission gear can corotation.It rubs this is because being produced between gear 10 and gear 12 Wipe power.But the damping unit 1 of the present embodiment has pressing in the press section of gear 12 36, so being formed as when contact portion 34 The structure of 12 corotation of gear is able to suppress in non-gearing range moving in rotation.

Here, the position of the gear 12 of the damping unit 1 of the present embodiment is by and utilization rigidity seperated with incorporating section 14 than receiving The high material (metal) of the rigidity limiting unit 15a that is formed in portion 14 of receiving is limited.On the other hand, existing general common damping dress The position for the gear set is limited by the limiting unit for the resin being integrally formed with incorporating section.Therefore, with existing general damping Device is compared, and the damping unit 1 of the present embodiment is the structure for being able to suppress the damage of limiting unit 15.

Here, the damping unit 1 to the present embodiment is summarized as follows.

The damping unit 1 of the present embodiment has the stepping motor 48 as driving source, by the drive of stepping motor 48 The power opening-closing plate 6 as opening and closing member being opened and closed, gear from the driving force of stepping motor 48 to opening-closing plate 6 that transmit 12, by being contacted and the limiting unit 15 of the rotating range of limiting gear 12, the receipts of storage gear 12 and limiting unit 15 with gear 12 Receive portion 14, limiting unit 15 is formed by material seperated with incorporating section 14 and that rigidity is higher than incorporating section 14.Therefore, the resistance of the present embodiment Buddhist nun's device 1 is the structure that can effectively inhibit limiting unit 15 to damage.

In addition, as described above, the damping unit 1 of the present embodiment is formed with the mounting portion 70 of rotary shaft 37 in incorporating section 14, Mounting portion 70 has the recess portion 72 concave to installation direction, that is, +X direction of limiting unit 15.Moreover, the limiting unit 15a of the present embodiment The structure of the recess portion 72 is installed on for insertion (insertion) recess portion 72.By being this structure by the configuration settings of mounting portion 70, Mounting structure of the limiting unit 15 to incorporating section 14 can be simply formed.

In addition, as described above, lower surface 76 and recess portion 72 of the limiting unit 15a of the present embodiment by limiting unit 15a A part of side that bottom surface 78 contacted and constituted the limitation face 71 of limiting unit 15a is contacted with the side 77 of recess portion 72, thus Rotary shaft 37 and limiting unit 15a are fixed on mounting portion 70.

If carrying out another expression, the limiting unit 15a of the present embodiment is installed in the state of with multiple face contacts Incorporating section 14.That is, incorporating section 14 can be more firmly fixed on.Therefore, the damping unit 1 of the present embodiment have can be effectively Limiting unit 15 is inhibited to be detached from the structure of (limiting unit 15 and the fracture of the contact portion of incorporating section 14) from incorporating section 14.

In addition, therefore, rigid height can be simply formed as described above, the limiting unit 15a of the present embodiment is formed by metal Limiting unit 15.

In addition, as described above, the rotary shaft 37 of the limiting unit 15a of the present embodiment and gear 12 is integrally formed, it therefore, can Component parts is inhibited to increase.

It is however not limited to this structure.Limiting unit 15 and rotary shaft 37 seperated can also be constituted.By by 15 He of limiting unit Rotary shaft 37 is seperated to be constituted, and limiting unit 15 and rotary shaft 37 respectively can be simply formed as suitable shape.

In addition, as described above, the damping unit 1 of the present embodiment, which has, is output to opening and closing for the driving force of stepping motor 48 Plate 6 be transmitted to as the gear 13 of output gear, by the driving force of stepping motor 48 gear 13 as transmission gear Gear 12, the limiting unit 15a of the present embodiment are the structure of the rotating range of limiting gear 12.By being set as this structure, having It is standby that the driving force of driving source is output to the output gear of opening and closing member and the driving force of driving source is transmitted to output gear In the structure of transmission gear, limiting unit 15 (limiting unit of the rotating range of limitation transmission gear) damage can be effectively inhibited.

It is however not limited to this structure.Limiting unit 15 is not limited to the limiting unit of the rotating range of limitation transmission gear, example Such as, the limiting unit that can be the rotating range of limitation output gear, can also be the limitation for limiting the rotating range of other gears Portion.

In addition, as described above, the damping unit 1 of the present embodiment has the gear 10 as rotation gear, the gear 10 tool Have a contact portion 34, rotary shaft and gear 12 be it is shared, the driving force of stepping motor 48 is passed into tooth via contact portion 34 Wheel 12.Moreover, gear 12 is driven gear, has by contact portion 35, contact portion 34 and contacted by contact portion 35, by contact portion 35 by 34 capacity of contact portion, to be rotated with the gearing of gear 10.In addition, for such as flowering structure, when contact portion 34 exists When the gearing range moving in rotation of a part of the rotating range as gear 10, contact portion 34 is contacted with by contact portion 35, when When being detached from the non-gearing range moving in rotation for interlocking range, contact portion 34 is solved contact portion 34 with by the contact of contact portion 35 It removes.Here, the driving force of stepping motor 48 is transmitted to the gear 11 as output gear by gear 10, gear 12 is electric by stepping The driving force of motivation 48 is transmitted to the gear 13 as output gear.In this way, the damping unit 1 of the present embodiment be have two it is defeated So-called double damping units of shaft (rotary shaft 30 of gear 11 and the rotary shaft 33 of gear 13).By being set as this structure, It is further equipped in the so-called double damping units for the rotation gear that rotary shaft and transmission gear share, limitation can be effectively inhibited Portion 15 is damaged.

It is however not limited to this structure.Limiting unit 15 is also possible to limit the rotating range of the gear in single damping unit Limiting unit.

Then, the embodiment of the damping unit of the damping unit different structure with embodiment 1 is illustrated.

[embodiment 2] (Figure 13)

Figure 13 is a part (mounting portion of rotary shaft 37 for the driving force transmission device 2 for indicating the damping unit of embodiment 2 70) approximate stereogram.In addition, be commonly constructed component with above-described embodiment 1 is indicated with identical symbol, omit specifically It is bright.

In addition, the damping unit of the present embodiment is the damping unit with embodiment 1 in addition to mounting portion 70 and rotary shaft 37 1 same structure.

The damping unit of embodiment 1 is limiting unit 15 and the construct that rotary shaft 37 is integrally formed, this is integrally formed It is fixed in the structure of mounting portion 70.

On the other hand, in the damping unit of the present embodiment, rotary shaft 37 be it is rodlike (cylindric), as shown in figure 13, limitation Portion 15 (limiting unit 15b) is integrally formed with mounting portion 70.

Specifically, the mounting portion 70 of the present embodiment has the function of as limiting unit 15 comprising: have and gear 12 The limitation face 71 contacted by limitation face 74 contact portion 90 (fan-shaped part)；The fixed part 92 fixed to incorporating section 14 is (embedding Enter to be set to the part of the recess portion of the bottom surface 14a of incorporating section 14: the part on the downside of dotted line in Figure 13)；And prolong from contact portion 90 Reach the extension 91 of fixed part 92 (being formed in a manner of being connected).

That is, the limiting unit 15b of the present embodiment has the contact portion 90 contacted with gear 12, the fixation fixed to incorporating section 14 Portion 92, the extension 91 that fixed part 92 is extended to from contact portion 90.

Moreover, as shown in figure 13, the contact area (face of the bottom surface of columned part of fixed part 92 and incorporating section 14 Product) it is bigger than the area (area of the bottom surface of sector portion) of contact portion 90 and the boundary part of extension 91.

Therefore, the damping unit formation of the present embodiment can particularly effectively inhibit limiting unit 15 to be detached from from incorporating section 14 The structure of (limiting unit 15 and the fracture of the contact portion of incorporating section 14).

In addition, in the limiting unit 15a of embodiment 1, on the basis of the direction orthogonal with direction X, can will correspond to and tooth The part in the region of 12 contact of wheel regards contact portion 90 as, will correspond to the region contacted with the side 77 of recess portion 72 and bottom surface 78 Regard fixed part 92 as, regard the part for corresponding to the region between contact portion 90 and fixed part 92 as extension 91 in part.In this way, It may be said that the contact area of fixed part 92 and incorporating section 14 is also than contact portion 90 and extension 91 in the limiting unit 15a of embodiment 1 Boundary part area it is big.

[embodiment 3] (Figure 14~Figure 16)

Figure 14~Figure 16 is a part (rotary shaft 37 for the driving force transmission device 2 for indicating the damping unit of embodiment 3 Mounting portion 70) skeleton diagram.Wherein, Figure 14 is perspective view, and Figure 15 and Figure 16 are the side for carrying out cutting from different directions respectively Face cross-sectional view.In addition, be commonly constructed component with above-described embodiment 1 and embodiment 2 is indicated with identical symbol, omit detailed Explanation.

In addition, the damping unit of the present embodiment is similarly tied with the damping unit 1 of embodiment 2 in addition to mounting portion 70 Structure.

The limiting unit 15b of the limiting unit 15a (rotary shaft 37 being integrally formed with limiting unit 15) of embodiment 1, embodiment 2 (mounting portion 70 being integrally formed with limiting unit 15) can be suitably formed by cutting, being sintered etc..On the other hand, the present embodiment Limiting unit 15c by constituting a metal plate and being plastically deformed protrusion.

In this way, the manufacturing method of limiting unit 15 is not particularly limited, it can be various by cutting, sintering, punch process etc. Method manufactures limiting unit 15.

In addition, the limiting unit 15c of the present embodiment also has the contact portion 90 contacted with gear 12, fixed to incorporating section 14 Fixed part 92, the extension 91 that fixed part 92 is extended to from contact portion 90.

Moreover, as shown in figure 14, (insertion is set to the bottom surface of incorporating section 14 to the contact area of fixed part 92 and incorporating section 14 The part of the recess portion of 14a: the part of the downside of the dotted line in Figure 14) than the area of contact portion 90 and the boundary part of extension 91 (area of the bottom surface of sector portion) is big.

Therefore, the damping unit of the present embodiment, which is also formed, can particularly effectively inhibit limiting unit 15 to be detached from from incorporating section 14 The structure of (limiting unit 15 and the fracture of the contact portion of incorporating section 14).

In addition, as shown in Figure 15 etc., the mounting portion 70 of the present embodiment be such as flowering structure, by around circular hole portion 80 into Row flange processing and be formed with rib 83, the contact area of rotary shaft 37 and circular hole portion 80 can be widened, so as to by circular hole portion 80 particularly well supporting rotating shaft 37.

In addition, as shown in figure 16, the mounting portion 70 of the present embodiment is embedded by insert-molding is formed in incorporating section 14 The recess portion 84 of bottom surface 14a.

Here, insert-molding be, for example, the component that metal parts etc. to be embedded in is configured in model, carry out resin at The method of the component to be embedded in the metal parts etc. whens type etc. embedment.Specifically, the mounting portion 70 of the present embodiment pass through by Embedding part 94 is formed in fixed part 92, and fixed part 92 is embedded to and is molded with resin together with embedding part 94, to be embedded in receipts Receive portion 14.By being set as this structure, can more firmly fix.

If carrying out another expression, the damping unit 1 of the present embodiment is formed with and rotary shaft 37 in incorporating section 14 The limiting unit 15c that mounting portion 70 is integrally formed, limiting unit 15c have the recess portion 84 concave to its installation direction, that is, +X direction.And And the limiting unit 15c of the present embodiment is the structure for being embedded in (insertion) recess portion 84 and being installed on the recess portion 84.By by limiting unit The configuration settings of 15c (mounting portion 70) are this structure, can simply form installation knot of the limiting unit 15 relative to incorporating section 14 Structure.

Although the mounting portion 70 of embodiment 2 is also same as the mounting portion of the present embodiment 70 in addition, not expressed, lead to It crosses insert-molding and is embedded in the recess portion 84 for being formed in the bottom surface 14a of incorporating section 14.

[embodiment 4] (Figure 17)

Figure 17 is the approximate stereogram for indicating the driving force transmission device 2 of the damping unit of embodiment 4.In addition, with above-mentioned 1~embodiment of embodiment 3 is commonly constructed component and is indicated with identical symbol, omits detailed description.

In addition, the damping unit of the present embodiment has in addition to gear 12, limiting unit 15, mounting portion 70 and rotary shaft 37 Structure identical with the damping unit 1 of embodiment 1.

The limiting unit 15 of 1~embodiment of embodiment 3 is formed in the periphery of rotary shaft 37, but the forming position of limiting unit 15 does not have It is particularly limited to.

As shown in figure 17, the limiting unit 15d of the present embodiment is formed in the position on the periphery far from rotary shaft 37.In detail and Speech, recess portion 84 are formed in the position on the periphery on the bottom surface 14a of incorporating section 14 far from rotary shaft 37, are processed by inserts, this reality The limiting unit 15d for applying example is embedded into the recess portion 84.In addition, the gear 12 of the present embodiment is formed such as flowering structure: by by planar portions 61 abut as restricting portion with limiting unit 15d (referring to Fig. 8~Figure 10), to limit moving in rotation range.

Alternatively, it is also possible to be fixed on incorporating section 14 the limiting unit 15d as the present embodiment, without via other components (such as mounting portion 70).

The limiting unit 15 of 1~embodiment of embodiment 4, which is embedded into, is fixed on recess portion, but the fixing means of limiting unit 15 is without spy It does not limit.

The bottom surface of the limiting unit 15 can also be bonded and fixed to the bottom surface 14a of incorporating section 14 by limiting unit 15.By being set as This structure can make the shape of the fixed part of limiting unit 15 simpler.

The utility model is not limited to the above embodiments, can be real with various structures in range without departing from the spirit It is existing.For example, in order to solve the above-mentioned technical problem part or all or in order to realize a part of said effect or complete Portion, the technical characteristic in embodiment corresponding with the technical characteristic in each mode documented by one column of utility model content can fit When replacement, combination.For example, the damping unit of 1~embodiment of above-described embodiment 4 is that have two opening and closing members (opening-closing plate 5 and to open 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 an opening and closing member, The gear 12 as transmission gear and the gear 13 as output gear are not needed, so the driving force of driving source can be transmitted To the gear 11 as output gear, and rotating range can be restricted to transmission gear that portion 15 limits as gear 10. In addition, limiting unit 15 is made of metal in 1~embodiment of above-described embodiment 5, incorporating section 14 is made of resin.But it is unlimited In this structure, as long as limiting unit 15 is formed by the rigidity material higher than the rigidity of incorporating section 14, no matter resin system or gold Belonging to a variety of materials such as system can be used.

In addition, be illustrated if its technical characteristic is no in the present specification as necessary feature, it can be appropriate It deletes.

Claims (9)

1. a kind of damping unit, 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 transmitted to the opening and closing member by gear, the gear；

Limiting unit, the limiting unit is by limiting the rotating range of the gear with the Gear Contact；And

The gear and the limiting unit are stored in incorporating section, the incorporating section,

The limiting unit and the incorporating section are separately formed, and are formed by the rigidity material higher than the rigidity of the incorporating section.

2. damping unit according to claim 1, which is characterized in that

The limiting unit relative to the incorporating section to be installed on the incorporating section in the state of multiple face contacts.

3. damping unit according to claim 2, which is characterized in that

In the concave recess portion of the installation direction that the incorporating section forms the oriented limiting unit,

The limiting unit is embedded in the recess portion and is installed on the recess portion.

4. damping unit according to claim 1, which is characterized in that

The limiting unit have the fixed part being fixed with the contact portion of the Gear Contact, relative to the incorporating section, with And the extension of the fixed part is extended to from the contact portion,

Area of the contact area of the fixed part and the incorporating section than the contact portion and the boundary part of the extension Greatly.

5. damping unit according to claim 1, which is characterized in that

The limiting unit is formed by metal.

6. damping unit according to claim 1, which is characterized in that

The limiting unit and the rotary shaft of the gear are integrally formed.

7. damping unit according to claim 1, which is characterized in that

The limiting unit and the rotary shaft of the gear are separately formed.

8. damping unit according to any one of claims 1 to 7, which is characterized in that

The damping unit has:

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

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

The limiting unit is configured to, and limits the rotating range of the transmission gear as the gear.

9. damping unit according to claim 8, which is characterized in that

The damping unit has rotation gear, and the rotation gear has contact portion, and shares rotation with the transmission gear The driving force of the driving source is transmitted to the transmission gear via the contact portion by axis,

The transmission gear is driven gear, is had by contact portion, the contact portion and described by contact portion contact and described By contact portion by the contact portion capacity, thus rotated with rotation gear gearing,

It is described when gearing range moving in rotation of the contact portion in a part of the rotating range as the rotation gear Contact portion and it is described contacted by contact portion, when the contact portion be detached from it is described interlock range non-gearing range moving in rotation When, the contact portion is released from described by the contact of contact portion.