JP2019027608A - Damper device - Google Patents

Abstract

To restrain a regulating part for regulating a rotation range of a transmission gear from being damaged.SOLUTION: A damper device includes a driving source, an opening and closing member opened and closed by driving force of the driving source, an output gear 13 for outputting the driving force of the driving source to the opening and closing member, a transmission gear 12 for transmitting the driving force of the driving source to the output gear 13, a regulating part 15 for regulating a rotation range of the transmission gear 12 by contact with the transmission gear 12, and a storage part having the regulating part 15 and storing the output gear 13 and the transmission gear 12. The rotation range of the transmission gear 12 is regulated by the regulating part 15, and therefore, the transmission gear 12 is rotated within the rotation range between a first position and a second position. The regulating part 15 has and extension part 15a having a length in a direction F1 of receiving the force from the transmission gear 12 longer than a length in a direction orthogonal to the direction F1 and extending to the direction F1 side, and a distal end 62 in the direction F1 side of the extension part 15a is located on an extension line of a contact position 41 with the transmission gear 12 of the regulating part 15 in the direction F1.SELECTED DRAWING: Figure 16

Description

  The present invention relates to a damper device.

  Conventionally, various damper devices have been used. In such a damper device, various gears are generally used, but there is a configuration that restricts the rotation range of the gears. For example, Patent Document 1 discloses a damper device configured to restrict the rotation angle of the drive gear to 360 ° by bringing a convex portion provided on the case portion into contact with a convex portion of a holding member.

JP 2012-202574 A

However, in a conventional damper device that restricts the rotation range of the gear, such as the damper device disclosed in Patent Document 1, a force is applied to the restriction portion that restricts the rotation range of the gear, and the restriction portion is damaged. There is.
In particular, an output gear that outputs the driving force of the driving source to the opening / closing member, a transmission gear that transmits the driving force to the output gear, and a restricting portion that restricts the rotation range of the transmission gear by contacting the transmission gear. In the structure which has, it is necessary to suppress the damage of this control part.

  Therefore, an object of the present invention is to suppress damage to the restricting portion that restricts the rotation range of the transmission gear.

  The damper device according to the first aspect of the present invention includes a drive source, an opening / closing member that opens and closes by a driving force of the driving source, an output gear that outputs the driving force of the driving source to the opening / closing member, and the driving source. A transmission gear that transmits the driving force of the transmission gear to the output gear, a restriction portion that restricts a rotation range of the transmission gear by contacting the transmission gear, and the restriction portion, the output gear, the transmission gear, And the transmission gear is configured to rotate in a rotation range from a first position to a second position by restricting a rotation range by the restriction portion, and the restriction portion. Is longer than the length in the direction orthogonal to the direction receiving the force from the transmission gear, and has an extending portion extending in the direction of receiving the force from the transmission gear, The transmission in the extended portion Tip of the direction side receives a force from the car, and being located on the extension of the contact position between the transmission gear in the regulating portion in a direction to receive a force from the transmission gear.

  According to this aspect, the restricting portion has the extending portion extending in the direction of receiving the force from the transmission gear, and the distal end portion on the direction side of receiving the force from the transmission gear in the extending portion is in the direction of receiving the force from the transmission gear. It is located on the extension line of the contact position with the transmission gear in the restricting portion. In the case where the restricting portion has an extending portion, the tip portion is not located on the extension line of the contact position if the tip portion is located on the extension line of the contact position in the direction of receiving the force from the transmission gear. Rather, the force received from the transmission gear can be received more effectively. For this reason, the force received from the transmission gear by the extended portion can be effectively received, and the restricting portion can be prevented from being damaged.

  The damper device according to the second aspect of the present invention includes a drive source, an opening / closing member that opens and closes by a driving force of the driving source, an output gear that outputs the driving force of the driving source to the opening / closing member, and the driving source. A transmission gear that transmits the driving force of the transmission gear to the output gear, a restriction portion that restricts a rotation range of the transmission gear by contacting the transmission gear, and the restriction portion, the output gear, the transmission gear, And the transmission gear is configured to rotate in a rotation range from a first position to a second position by restricting a rotation range by the restriction portion, and the restriction portion. A first component that contacts the transmission gear and extends in a direction different from the direction of receiving a force from the transmission gear by contacting the transmission gear, and the first component contacts the transmission gear By A second structure extending from serial transmission gear in the direction to receive a force, and having a.

  The restricting portion of this aspect includes a first component that extends in a direction different from the direction of receiving a force from the transmission gear by contacting the transmission gear and contacting the transmission gear, and the first component is a transmission gear. It has the 2nd structure part extended in the direction side which receives force from a transmission gearwheel by contacting. For this reason, while being able to disperse | distribute the force added to a control part to the direction side where a 1st structure part extends, the force added to a control part can be received effectively in a 2nd structure part. Therefore, it can suppress that a control part is damaged.

  In the damper device according to the third aspect of the present invention, in the first or second aspect, the restricting portion restricts rotation of the transmission gear by contacting an outer peripheral portion of the transmission gear. It is characterized by.

  The restricting portion of this aspect is configured to restrict the rotation of the transmission gear by contacting the outer peripheral portion of the transmission gear. Therefore, since the restricting portion can be formed outside the transmission gear, it is easy to form the restricting portion large and sturdy.

  The damper device according to a fourth aspect of the present invention is characterized in that, in any one of the first to third aspects, the transmission gear has a contact surface with the restricting portion.

  According to this aspect, since the transmission gear has a contact surface with respect to the restricting portion, it is easy to make a surface contact or a line contact with the restricting portion, and a single point concentration of the force applied to the restricting portion due to the point contact with the restricting portion. Can be suppressed.

  The damper device according to a fifth aspect of the present invention is characterized in that, in any one of the first to fourth aspects, the restricting portion is connected to a wall portion of the housing portion.

  Since the restricting portion of this aspect is connected to the wall portion of the accommodating portion, the force applied to the restricting portion can be distributed to the wall portion of the accommodating portion and effectively received.

  The damper device according to a sixth aspect of the present invention is characterized in that, in the fifth aspect, the wall portion is an outer peripheral wall of the housing portion.

  Since the wall portion is an outer peripheral wall of the housing portion, it is possible to avoid forming a separate wall portion.

  The damper device according to a seventh aspect of the present invention is characterized in that, in the fifth or sixth aspect, the restricting portion is connected to a plurality of locations of the wall portion.

  Since the restricting portion of this aspect is connected to a plurality of locations on the wall portion of the housing portion, the force applied to the restricting portion can be distributed and received effectively at a plurality of locations on the wall portion of the housing portion.

  The damper device according to an eighth aspect of the present invention is characterized in that, in the seventh aspect, the restricting portion has a rib shape.

  Since the restricting portion of this aspect is in the shape of a rib, it is possible to suppress deformation of the accommodating portion due to formation of the restricting portion.

  The damper device according to a ninth aspect of the present invention is the damper device according to any one of the first to eighth aspects, wherein the contact position of the restricting portion with the transmission gear is a position deviated from an end portion of the restricting portion. It is characterized by being.

  When force is applied to the end of the restricting portion, the restricting portion is particularly easily damaged. However, according to this aspect, the contact position of the restricting portion with the transmission gear is a position deviated from the end portion of the restricting portion. For this reason, damage to the restricting portion can be effectively suppressed.

  The damper device according to a tenth aspect of the present invention is characterized in that, in any one of the first to ninth aspects, the restricting portion is integrally formed with the accommodating portion.

  Since the restricting portion of this aspect is integrally formed with the accommodating portion, the restricting portion can be easily formed.

  A damper device according to an eleventh aspect of the present invention is the damper device according to any one of the first to tenth aspects, having a contact portion, wherein the transmission gear and the rotation shaft are common, and the contact portion is interposed therebetween. A rotating gear that transmits the driving force of the driving source to the transmission gear, and the transmission gear includes a contacted portion, and the contacted portion and the contacted portion come into contact with each other and the contacted portion causes the contacted portion to A driven gear that rotates in conjunction with the rotating gear when the contact portion receives a force, and the contact portion and the rotating portion move in an interlocking range that is a part of the rotating range of the rotating gear. When the contact portion rotates and moves in a non-interlocking range outside the interlocking range, the contact between the contacted portion and the contacted portion is released, and the transmission is performed. For rotation of the gear in the non-interlocking range Characterized in that it comprises a pressing portion for preventing the accompanied rotation by giving load.

  In a configuration in which the transmission gear and the rotation shaft have a common rotation gear, and the transmission gear is a driven gear that rotates in the interlocking range in which the contact portion and the non-contact portion are in contact with the rotation gear, the non-interaction range is contacted. When the part rotates, the transmission gear may be accompanied. However, according to this aspect, since the pressure gear is provided with a pressing portion that prevents accompanying rotation by applying a load to the rotation of the transmission gear in the non-interlocking range, when the contact portion rotates and moves in the non-interlocking range. It is possible to suppress the transmission gear from being accompanied.

  A damper device according to a twelfth aspect of the present invention is the damper device according to any one of the first to eleventh aspects, wherein the transmission gear is provided with teeth on a part of a concentric circle based on a rotation axis of the transmission gear. And a meshing portion that is configured to transmit the driving force of the driving source to the output gear by meshing the meshing portion with the teeth of the output gear.

  The transmission gear of this aspect has a meshing portion in which teeth are provided in a part of a concentric circle with reference to the rotation axis of the transmission gear, and the meshing portion meshes with the teeth of the output gear to drive the power source. The driving force is transmitted to the output gear. By having the transmission gear having such a configuration, it is possible to easily create a state in which the meshing portion of the transmission gear does not mesh with the teeth of the output gear, and it is easy to stop the output gear at a predetermined position. can do.

  A damper device according to a thirteenth aspect of the present invention is characterized in that, in any one of the first to twelfth aspects, the damper device includes a reinforcing portion that reinforces the restricting portion.

  According to this aspect, since the reinforcement part which reinforces a control part is provided, it can suppress that a control part damages especially effectively.

  The damper device according to a fourteenth aspect of the present invention is the damper device according to any one of the first to thirteenth aspects, wherein at least one of the portions where the two surfaces intersect is chamfered. And

  When there is a corner portion in the restricting portion, the restricting portion is easily damaged from the corner portion.However, according to this aspect, even when the restricting portion has a corner portion, the corner portion is chamfered, so that the restricting portion is damaged. It can be effectively suppressed.

  The damper device of the present invention can suppress damage to the restricting portion that restricts the rotation range of the transmission gear.

It is a schematic perspective view showing an example of an apparatus provided with the damper apparatus which concerns on Example 1 of this invention. It is a schematic perspective view showing the damper apparatus concerning Example 1 of the present invention. 1 is an exploded schematic perspective view illustrating a damper device according to Embodiment 1 of the present invention. It is the schematic showing the driving force transmission apparatus of the damper apparatus which concerns on Example 1 of this invention. It is a schematic perspective view showing the driving force transmission device of the damper device according to the first embodiment of the present invention. 1 is a partially exploded schematic perspective view showing a driving force transmission device of a damper device according to a first embodiment of the present invention. It is the schematic showing the driving force transmission apparatus of the damper apparatus which concerns on Example 1 of this invention. It is the schematic showing the driving force transmission apparatus of the damper apparatus which concerns on Example 1 of this invention. It is a schematic perspective view showing a part of the driving force transmission device of the damper device according to the first embodiment of the present invention. It is a schematic sectional drawing showing a part of driving force transmission device of a damper device concerning Example 1 of the present invention. It is a perspective view showing the transmission gear of the damper device concerning Example 1 of the present invention. It is a top view showing the transmission gear of the damper device concerning Example 1 of the present invention. It is a bottom view showing the transmission gear of the damper device concerning Example 1 of the present invention. It is a perspective view showing the transmission gear of the damper device concerning Example 1 of the present invention. It is the schematic for demonstrating operation | movement of each gear in the driving force transmission apparatus of the damper apparatus which concerns on Example 1 of this invention, The illustration of a control part is abbreviate | omitted in each figure of the upper stage. It is the schematic for demonstrating the damper apparatus which concerns on Example 1 of this invention. It is the schematic showing the driving force transmission apparatus of the damper apparatus which concerns on Example 2 of this invention. It is the partially exploded schematic perspective view showing the driving force transmission device of the damper device concerning Example 2 of the present invention. It is the schematic showing the driving force transmission apparatus of the damper apparatus which concerns on Example 2 of this invention. It is the schematic showing the driving force transmission apparatus of the damper apparatus which concerns on Example 2 of this invention. It is the schematic showing the driving force transmission apparatus of the damper apparatus which concerns on Example 2 of this invention. It is the schematic showing the driving force transmission apparatus of the damper apparatus which concerns on Example 2 of this invention. It is a schematic perspective view showing a part of the driving force transmission device of the damper device according to the third embodiment of the present invention. It is the schematic showing a part of drive force transmission device of the damper apparatus which concerns on Example 3-Example 5 of this invention. It is the schematic for demonstrating operation | movement of each gear in the driving force transmission apparatus of the damper apparatus which concerns on a reference example.

Hereinafter, a damper device 1 according to an embodiment of the present invention will be described.
[Example 1] (FIGS. 1 to 15)
Initially, the outline | summary of the damper apparatus 1 of Example 1 is demonstrated.
FIG. 1 is a schematic view (partially perspective view) showing a refrigerator 101 which is an example of an apparatus including the damper device 1 of the present embodiment.
2 and 3 are schematic views of the damper device 1 of this embodiment. Among these, FIG. 2 shows a state in which the first frame 3 and the second frame 4 are attached to the driving force transmission device 2. On the other hand, FIG. 3 shows a state in which the first frame 3 and the second frame 4 are removed from the driving force transmission device 2.

As shown in FIG. 1, the damper device 1 of the present embodiment can be used in a refrigerator 101 or the like. A refrigerator 101 shown in FIG. 1 provided with the damper device 1 of this embodiment includes a refrigerator compartment 102, a freezer compartment 103, and a vegetable compartment 104. The refrigerator 101 converts the cold air generated by the cooler 105 into an air flow AF by the blower 106, and passes through the damper device 1, the other damper device 107, and the damper device 108 to the refrigerator compartment 102, the freezer compartment 103, and the vegetable compartment 104. The airflow AF can be introduced.
However, an apparatus provided with the damper apparatus 1 of a present Example is not limited to a refrigerator. Moreover, the structure of a refrigerator provided with the damper apparatus 1 of a present Example is not limited to the structure represented by FIG.

As shown in FIGS. 2 and 3, the damper device 1 of the present embodiment includes a driving force transmission device 2, a first frame 3 and a second frame 4 disposed on both sides of the driving force transmission device 2. ,have. The first frame 3 has an opening 7 and an opening / closing plate 5 that opens and closes the opening 7 by the driving force transmitted by the driving force transmission device 2. The second frame 4 has an opening 8 and an opening / closing plate 6 that opens and closes the opening 8 by the driving force transmitted by the driving force transmission device 2.
Here, the direction X is a direction along the arrangement direction of the first frame 3 and the second frame 4 with respect to the driving force transmission device 2 (the + X direction is a direction from the first frame 3 side to the second frame 4 side, − The X direction is the opposite direction). The direction Y is a direction orthogonal to the direction X and along the opening direction of the opening 7 and the opening 8 (the + Y direction is the direction in which the opening 7 and the opening 8 open, and the −Y direction is the direction (Opposite direction). The direction Z is a direction orthogonal to the direction X and the direction Y (the + Z direction is an upward direction when viewed from the + Y direction with the first frame 3 on the right side and the second frame 4 on the left side, and the −Z direction is The opposite direction).

Both the opening / closing plate 5 and the opening / closing plate 6 that are opening / closing members are provided with a rotating shaft (not shown) at one end, and can be rotated based on the rotating shaft by the driving force transmitted by the driving force transmitting device 2. Has been. 2 shows a state where the opening / closing plate 5 is in the open position and the opening / closing plate 6 is in the closed position, and FIG. 3 shows a state where both the opening / closing plate 5 and the opening / closing plate 6 are in the open position.
In the damper device 1 of this embodiment, as the open / close positions of the open / close plate 5 and the open / close plate 6, both are closed positions, one is an open position, the other is a closed position, both are open positions, one is a closed position, and the other is an open position. It is possible to take the following four states. And the refrigerator 101 can adjust the airflow AF introduced into the refrigerator compartment 102, the freezer compartment 103, and the vegetable compartment 104, when the damper apparatus 1 takes such four states (namely, refrigerator compartment 102, freezer compartment 103). And the temperature of the vegetable compartment 104 can be adjusted). In the refrigerator 101 of this embodiment, the open / close plate 5 and the open / close plate 6 are used in a fully open state (fully open position) or the open / close plate 5 and the open / close plate 6 are completely closed (fully closed position). In addition, the opening / closing plate 5 and the opening / closing plate 6 can be used in a state where the opening / closing plate 5 and the opening / closing plate 6 are not completely opened, or in a state where the opening / closing plate 5 and the opening / closing plate 6 are not completely closed.

Next, the driving force transmission device 2 that is a main part of the damper device 1 of the present embodiment will be described in detail.
Here, FIGS. 4-8 is the schematic of the driving force transmission apparatus 2 of the damper apparatus 1 of a present Example. Among these, FIG. 4 is a schematic view of the driving force transmission device 2 viewed from the direction along the direction X. 5 and 6 are schematic perspective views of the driving force transmission device 2. FIG. 6 shows the gear 10 and the gear with respect to the state shown in FIG. 11 represents a state in which the 11 is floated. FIG. 7 is a schematic view of the driving force transmission device 2 as seen from the direction along the direction X, with the gears other than the gear 12 and the gear 13 removed, and shows the state where the gear 12 is in the first position. ing. FIG. 8 is a schematic view of the driving force transmission device 2 as viewed from the direction along the direction X with the gears other than the gear 12 and the gear 13 removed, and the gear 12 is in the second position. Represents.
FIG. 9 is a schematic view showing a part of the driving force transmission device 2 of the damper device 1 of this embodiment, and shows a state where the gear 12 is in the first position.
FIG. 10 is a schematic cross-sectional view showing a part of the driving force transmission device 2 of the damper device 1 of this embodiment.
11 to 14 show a gear 12 that is a transmission gear of the damper device 1 of the present embodiment, FIG. 11 is a perspective view, and FIG. 12 is a plan view in a state of being attached to the driving force transmission device 2. 13 is a bottom view, and FIG. 14 is a perspective view seen from a direction different from FIG.

As shown in FIGS. 4 to 6, the driving force transmission device 2 of the present embodiment has a stepping motor 48 as a driving source. The stepping motor 48 has a rotating shaft 16 to which the gear 17 is attached, and is configured to be able to rotate in both directions by rotating the rotating shaft 16 forward and backward.
The driving force transmission device 2 of the present embodiment has a configuration having the stepping motor 48 as a driving source, but the driving source is not particularly limited. For example, a DC motor or the like may be used instead of the stepping motor 48. Good.

Further, the driving force transmission device 2 of this embodiment includes a gear train 9 that decelerates and transmits the rotation of the stepping motor 48 (rotation of the rotating shaft 16). The gear train 9 includes a first gear 18, a second gear 21, and a third gear 24. The first gear 18 includes a large-diameter gear portion 19 having a tooth portion that meshes with the gear 17, and a small-diameter gear portion 20 provided on the inner peripheral side of the large-diameter gear portion 19.
The second gear 21 includes a large-diameter gear portion 22 that meshes with the small-diameter gear portion 20 of the first gear 18, and a small-diameter gear portion 23 provided on the inner peripheral side of the large-diameter gear portion 22. ing.
The third gear 24 includes a large-diameter gear portion 25 that meshes with the small-diameter gear portion 23 of the second gear, and a small-diameter gear portion 26 that is provided on the inner peripheral side of the large-diameter gear portion 25. Yes. Although the gear train 9 of the present embodiment has such a configuration, the configuration of the gear train is not particularly limited.

Further, the driving force transmission device 2 of the present embodiment includes a gear 10 that can rotate with respect to the rotation shaft 37. The gear 10 is provided at a part of a circumferential part 59 that is provided on the outer peripheral part and meshes with the tooth 26, and provided on the inner peripheral side of the tooth 27 and is a concentric circle with respect to the rotation shaft 37. Teeth. The gear 10 has a contact portion 34 (see FIG. 15), which will be described in detail later, on the side opposite to the side where the teeth 28 are formed in the direction X.
The driving force transmission device 2 according to the present embodiment includes a gear 11 that can rotate on the basis of a rotation shaft 30 that is a rotation shaft common to the rotation shaft of the opening / closing plate 5 in the first frame 3. The gear 11 has teeth 29 provided on the outer peripheral portion and meshing with the teeth 28. The opening / closing plate 5 rotates in synchronization with the rotation of the gear 11.

  The gear 11 is a sector gear, and teeth 29 are formed on the outermost peripheral portion (arc portion) of the sector. In addition, in a part of the region on the lower side (+ X direction side) of the teeth 29, contact teeth that contact the circumferential portion 59 are provided. Specifically, some of the teeth 29 (one or more teeth on both end sides in the rotational movement direction of the gear 11) are configured to be shorter in the + X direction than the other teeth. And the contact tooth | gear with a short outer peripheral length is comprised in the lower part (+ X direction side) of the tooth | gear comprised short in + X direction. Since the gear 11 has such a configuration, when the tooth 28 is in a position where it engages with the tooth 29, the tooth 28 contacts the tooth 29, and when the tooth 28 is not in a position where it engages with the tooth 29. The part in which the tooth | gear 28 in the circumferential part 59 is not formed, and an applicable contact tooth contact. That is, the gear 11 is positioned by being restrained by the tooth 28 when the tooth 28 is in a position engaging with the tooth 29, and the tooth 28 in the circumferential portion 59 is formed when the tooth 28 is not in a position engaging with the tooth 29. Positioning is constrained by a portion that is not performed. With such a configuration, the gear 11 is always in contact with the gear 10 and is effectively positioned without rattling.

Further, as shown in FIGS. 6 to 8, the driving force transmission device 2 of the present embodiment includes the gear 12 that can rotate on the basis of a rotation shaft 37 that is a rotation shaft common to the rotation shaft of the gear 10. ing. The gear 12 has teeth 31 provided on a part of a concentric circle with the rotation shaft 37 as a reference, and a contacted portion 35 provided on the opposite side of the teeth 31 with the rotation shaft 37 interposed therebetween. . Here, the gear 12 is moved along with the rotation of the gear 10 by the contact portion 34 being pushed in the rotation direction by the contact portion 34 in a state where the contact portion 34 (FIG. 15) of the gear 10 is in contact with the contact portion 35. Therefore, it is configured to rotate freely.
The driving force transmission device 2 according to the present embodiment includes a gear 13 (fan gear) that can rotate on the basis of a rotation shaft 33 that is a rotation shaft common to the rotation shaft of the opening / closing plate 6 in the second frame 4. Yes. The axis of rotation of the rotation shaft 33 of the gear 13 coincides with that of the rotation shaft 30 of the gear 11 described above. The gear 13 has teeth 32 provided on the outer peripheral portion 38 and meshing with the teeth 31. The teeth 32 are also provided in a partial range in the circumferential direction not over the entire circumference. The opening / closing plate 6 rotates in synchronization with the rotational movement of the gear 13.

  Here, the gear 12 will be further described. As shown in FIGS. 11 to 14, a part of the small-diameter arc portion 52 that constitutes a part of the outer periphery of the gear 12 has a tooth 31 that meshes with the tooth 32 of the gear 13. The teeth 31 transmit the rotation to the gear 13 when the gear 12 rotates integrally with the gear 10. Here, since the rotating shaft 33 of the gear 13 is a rotating shaft common to the rotating shaft of the opening / closing plate 6, the opening / closing plate 6 opens and closes when the gear 13 rotates.

Note that, as described above, the gear 12 is assumed to rotate only when the gear 10 moves within a range in which the contact portion 34 pushes the contacted portion 35 in the rotation range of the gear 10. It has become. However, in a range other than the range where the contact portion 34 pushes the contacted portion 35, the rotational force of the gear 10 is transmitted to the gear 12 via grease (lubricant) or the like interposed between the gear 10 and the gear 12. Therefore, there is a possibility that the gear 12 is accompanied.
Therefore, the driving force transmission device 2 of the present embodiment has a configuration that can suppress the rotation of the gear 12. Specifically, as shown in FIGS. 11 to 14, the gear 12 has a large-diameter arc portion 51 (cam surface) having a long distance from the rotation shaft 37 with respect to the small-diameter arc portion 52 around the gear 12. Prepared for part of. 7 and 8, the driving force transmission device 2 includes a pressing portion 36 that is a leaf spring at a position where the large-diameter arc portion 51 and a corner portion 54 described later contact.

Here, the gear 12 has a large-diameter arc portion 51, a small-diameter arc portion 52, and a substantially linearly cut shape that connects the large-diameter arc portion 51 and the small-diameter arc portion 52. The outer peripheral portion 38 is constituted by the flat portion 61 constituting the contact surface (contact surface). Further, the small-diameter arc portion 52 and the flat portion 61 are smoothly continuous without forming a step, and the corner portion 54 is formed between the large-diameter arc portion 51 and the flat portion 61. That is, the large-diameter arc portion 51 has two corner portions 54.
Located between.
The gear 12 is configured such that the large-diameter arc portion 51 is pressed by the pressing portion 36 that is a leaf spring (a load is applied so as not to be accompanied by the rotational force of the gear 10), and the accompanying rotation is suppressed. It has become. Specifically, when the gear 12 is in a state of being restricted by the restricting portion 15 (see FIGS. 7 and 8), the corner portion 54 is pressed by the pressing portion 36 so that accompanying rotation is suppressed. Yes. However, the configuration of the pressing portion is not limited to such a leaf spring. As long as a load can be applied to the gear 12, an elastic body such as rubber may be used. Further, instead of bringing the pressing portion into contact with the cam surface of the outer peripheral portion 38, the pressing portion may be brought into contact with the shaft portion constituting the rotating shaft 37.
When the gear 10 is moving in a range where the contact portion 34 presses the contacted portion 35 in the rotation range of the gear 10, the contact portion 34 is covered by the force that the pressing portion 36 suppresses the rotation of the gear 12. Since the force pushing the contact portion 35 is stronger, the gear 12 rotates as the gear 10 rotates. At that time, the cam surface (large-diameter arc portion 51) slides on the pressing portion 36.

Moreover, it will be as follows when suppression of the accompanying rotation of the gearwheel 12 is demonstrated with another expression.
As shown in FIG. 11, the gear 12 has a placement surface on which the gear 10 can be placed on the upper side (the side on the −X direction side where the gear 10 is placed) in the axial direction of the rotation shaft 37. 56 is formed, and the contacted portion 35 extends upward from the flat plate portion 53 of the gear 12 to the upper side of the mounting surface 56. As described above, when the gear 12 is restricted by the restricting portion 15, the contact portion 35 has the corner portion 54 that prevents accompanying rotation when a load is applied from the pressing portion 36, and the contacted portion 35 is the contact portion 34. And a large-diameter arc portion 51 that slides on the pressing portion 36 when rotating in contact with the. The large-diameter arc portion 51 is a curved surface constituting an arc, and the large-diameter arc portion 51 is connected to the large-diameter arc portion 51 and the corner portion 54 via the connecting portion and the corner portion 54 and the flat portion 61. Is a surface continuous with the flat portion 61.
In the connection part of the large-diameter arc part 51 and the corner part 54 and the connection part of the corner part 54 and the flat part 61, the connection part of the large-diameter arc part 51 and the corner part 54 is located radially outward (rotation axis). Long distance from 37). For this reason, accompanying force is prevented by the resistance when the pressing portion 36 tries to get over the corner portion 54.
As shown in FIGS. 11 to 14, the small-diameter arc portion 52 of the flat plate portion 53 has a flat portion 61, a corner portion 54, and a large diameter on the upper side (−X direction side) except for the formation region of the teeth 31. Although the outer peripheral part 38 is comprised with the circular arc part 51, the lower side (+ X direction side) becomes circular arc shape (cylindrical shape) as a whole. Specifically, as shown in FIG. 12, an escape portion 55 that forms an arc of the small-diameter arc portion 52 is formed in the lower portion of the large-diameter arc portion 51. Further, the small-diameter arc portion 52 has teeth 31 only in a partial region in the circumferential direction.

  Here, the gear 13 is a sector gear, and teeth 32 are formed on the outermost peripheral portion (arc portion) of the sector. In addition, a contact tooth that contacts the small-diameter arc portion 52 is provided in a partial region on the lower side (+ X direction side) of the tooth 32. Specifically, some of the teeth 32 (one or more teeth on both ends in the rotational movement direction of the gear 13) are configured to be shorter in the + X direction than the other teeth. And the contact tooth | gear with a short outer peripheral length is comprised in the lower part (+ X direction side) of the tooth | gear comprised short in + X direction. Since the gear 13 has such a configuration, when the tooth 31 is in a position where it engages with the tooth 32, the tooth 31 contacts the tooth 32, and when the tooth 31 is not in a position where it engages with the tooth 32. The part in which the tooth | gear 31 in the small diameter circular arc part 52 is not formed, and an applicable contact tooth contact. That is, the gear 13 is positioned by being constrained by the tooth 31 when the tooth 31 is in a position engaging with the tooth 32, and the tooth 31 in the small-diameter arc portion 52 is formed when the tooth 31 is not in a position engaging with the tooth 32. Positioning is constrained by a portion that is not performed. With such a configuration, the gear 12 is always in contact with the gear 12 and is effectively positioned without rattling.

  As shown in FIGS. 4 to 9, the driving force transmission device 2 according to this embodiment includes a housing portion that houses the stepping motor 48, the gear train 9, the gear 10, the gear 11, the gear 12, the gear 13, and the like. 14 is provided. In this embodiment, the accommodating portion 14 is made of a resin material, but is not limited to this resin material, and can be made of other materials, for example, a metal material.

Further, as shown in FIGS. 7 to 9, the driving force transmission device 2 according to the present embodiment includes a restricting portion 15 that restricts the rotation range of the gear 12 by contacting the gear 12. More specifically, the restriction portion 15 includes two rib-like restriction portions, a first restriction portion 15a and a second restriction portion 15b. The first restriction portion 15a restricts the rotation range of the gear 12 at the first position. The second restricting portion 15b is configured to restrict the rotation range of the gear 12 at the second position.
In this embodiment, the restricting portion 15 (the first restricting portion 15a and the second restricting portion 15b) is made of the same resin material as the accommodating portion 14 and integrally formed with the accommodating portion 14. Needless to say, the restricting portion 15 (the first restricting portion 15a and the second restricting portion 15b) may be made of a material different from that of the accommodating portion 14, and may be attached to a predetermined position of the accommodating portion 14 by a fastener.
Since the restricting portion 15 of the present embodiment is formed integrally with the housing portion 14, it is continuously formed with respect to the wall portion 42 and the surface 14 a (bottom surface) of the housing portion 14. However, it is not limited to such a configuration, a configuration that is continuously formed only with respect to the wall portion 42 of the accommodating portion 14, a continuous configuration only with respect to the surface 14 a, and the surface 14 a It is good also as a structure etc. which are continuously formed only on the surface of the opposing side.
As shown in FIG. 9, the gear 12 has an outer peripheral surface 49 in the outer peripheral portion 38, and the rotation range of the gear 12 is restricted by the contact between the side surface 39 of the restricting portion 15 and the outer peripheral surface 49. It has become.

Here, the damper device 1 according to the present embodiment is temporarily combined with the second frame 4 side (opening / closing plate 6 side) as a reference.
The damper device 1 of this embodiment includes a stepping motor 48 as a driving source, an opening / closing plate 6 as an opening / closing member that opens and closes by the driving force of the stepping motor 48, and an output that outputs the driving force of the stepping motor 48 to the opening / closing plate 6. And a gear 13 as a gear. Further, a gear 12 serving as a transmission gear that transmits the driving force of the stepping motor 48 to the gear 13, a regulation unit 15 that regulates the rotation range of the gear 12 by contact with the gear 12, and a regulation unit 15 are provided. 13 and a housing portion 14 for housing the gear 12. And the gear 12 is comprised so that it may rotate in the rotation range from a 1st position to a 2nd position, when the rotation range is controlled by the control part 15.
In the damper device 1 of the present embodiment, the first position corresponds to the fully open position of the opening / closing plate 6 and the second position corresponds to the fully closed position.

Here, as described above, the damper device 1 of the present embodiment is configured as the restricting portion 15 separately from the first restricting portion 15a that restricts the rotation of the gear 12 at the first position and the first restricting portion 15a. And a second restricting portion 15b for restricting the rotation of the gear 12 at the second position. For this reason, the damper device 1 of the present embodiment can disperse the force applied to the restricting portion 15 when the rotation of the gear 12 is restricted at the first position and when the rotation of the gear 12 is restricted at the second position. It can suppress that the part 15 is damaged.
Note that “separately configured” means, as shown in FIG. 10, an abutting portion 60 with which the outer peripheral portion 38 of the gear 12 abuts (in the present embodiment, a first component 15 a ′ and a first component described later). Corresponding to the outer peripheral portion 38 of the gear 12 in the portion 15b ′), and the corresponding contact portion 60 is independent on the surface 14a of the accommodating portion 14 on the side where the restricting portion 15 is provided. means. However, if the contact portions 60 of the two restricting portions 15 are not connected to each other, this also includes a configuration in which the two restricting portions 15 are connected to each other (see, for example, the rib 50 represented by a broken line in FIG. 10).

  Here, as represented in FIGS. 7 and 9, the first restricting portion 15 a extends in a direction (direction E) that is different from the direction F <b> 1 that receives the force from the gear 12 by contacting the gear 12. 1 component 15a 'is provided. Further, as shown in FIG. 8, the second restricting portion 15 b includes a first component 15 b ′ that extends in a direction different from the direction F <b> 2 that receives the force received from the gear 12 by contacting the gear 12. Have. For this reason, the damper device 1 according to the present embodiment applies the force applied to the restricting portion 15 (the first restricting portion 15a and the second restricting portion 15b) to the direction in which the first component 15a ′ and the first component 15b ′ extend. Can be dispersed.

Further, as shown in FIGS. 7 and 9, the first restricting portion 15 a has a second component portion 15 a ″ that extends in the direction F <b> 1 receiving the force from the gear 12 by contacting the gear 12. Yes. Further, as shown in FIG. 8, the second restricting portion 15 b has a second constituent portion 15 b ″ that extends in the direction F <b> 2 to receive the force received from the gear 12 by contacting the gear 12. . For this reason, the damper device 1 according to the present embodiment effectively applies the force applied to the restricting portion 15 (the first restricting portion 15a and the second restricting portion 15b) at the second constituting portion 15a '' and the second constituting portion 15b ''. Can take it.
The phrase “extends in the direction of receiving a force from the gear 12 by contacting with the gear 12” does not have to be configured to extend strictly in the direction of receiving the force (for example, the direction F1). For example, any configuration that extends in the direction F2) of the present embodiment may be used. Specifically, for example, a configuration that extends in a direction that is an angle of ± 90 degrees or less with respect to a direction that receives a force, and a configuration that extends in a direction that is an angle of ± 45 degrees or less is more preferable.
Further, “extends in a direction different from the direction in which the force is received from the gear 12” means that the gear 12 and the regulating portion 15 are in a direction along the surface when the gear 12 and the restricting portion 15 are in surface contact at the portion receiving the force from the gear 12. It is intended to include an extending configuration and a configuration extending in a direction substantially along the surface.

In other words, the first restricting portion 15a of the present embodiment is in contact with the gear 12 and extends in a direction different from the direction F1 receiving the force from the gear 12 by contacting the gear 12. The component 15a ′ has a second component 15a ″ that extends toward the direction F1 receiving the force from the gear 12 when the first component 15a ′ contacts the gear 12. Further, as shown in FIG. 8, the second restricting portion 15 b is in contact with the gear 12 and extends in a direction different from the direction F <b> 2 that receives the force received from the gear 12 by contacting the gear 12. The first component 15 b ′ and the second component 15 b ″ extending in the direction F 2 to receive the force received from the gear 12 when the first component 15 b ′ contacts the gear 12.
For this reason, while being able to disperse | distribute the force added to the control part 15 (1st control part 15a and 2nd control part 15b) to the direction side where 1st structure part 15a 'and 1st structure part 15b' extend, a control part 15 can be effectively received by the second component 15a '' and the second component 15b ''. Therefore, the damper device 1 according to the present embodiment can prevent the restricting portion 15 from being damaged.

Further, as described above, the restricting portion 15 (the first restricting portion 15a and the second restricting portion 15b) of the present embodiment is configured such that the outer peripheral portion 38 of the gear 12 is changed to the first constituting portion 15a ′ and the first constituting portion 15b ′. It is the structure which controls rotation of the gearwheel 12 by switching and contacting.
Since the restricting portion 15 and the outer peripheral portion 38 of the gear 12 are in contact with each other, the restricting portion 15 can be formed on the outside of the gear 12, so that the restricting portion 15 can be easily formed to be large and sturdy. The accommodating part 14 can also be made strong by making the part 15 into a beam shape.
The restricting portion 15 of the present embodiment is configured such that the “outer peripheral portion 38 of the gear 12 with respect to the rotation shaft 37 of the gear 12” is switched to and contacted with the first component 15a ′ and the first component 15b ′. The rotation of the gear 12 is restricted. For this reason, it is possible to set the distance from the rotating shaft 37 of the gear 12 to the contact position between the restricting portion 15 and the gear 12 by setting the restricting portion 15 and the gear 12 in such a configuration. (See distance L1 in FIG. 15 and distance L2 in FIG. 25). That is, the stress applied from the gear 12 to the restricting portion 15 can be relaxed. Thereby, the damper apparatus 1 of a present Example can suppress that the control part 15 is damaged especially effectively. The restricting portion 15 of the present embodiment has such a configuration, but the “outer peripheral portion” is not necessarily limited to the outer peripheral portion of the gear 12 with the rotation shaft 37 of the gear 12 as a reference. For example, a configuration in which two regulating portions 15 are formed on the surface of the accommodating portion 14 that faces the surface 14 a and a contact member that abuts the two regulating portions 15 on the surface 57 of the flat plate portion 53 on the mounting surface 56 side is provided. And so on.

Further, as described above, the gear 12 of the present embodiment has an outer peripheral surface 49 that is a contact surface with the restricting portion 15 (specifically, the first component portion 15a ′ and the first component portion 15b ′) as the outer peripheral portion 38. Have. In other words, the outer peripheral portion 38 of the gear 12 is configured to have a surface-shaped contact surface at least at a portion in contact with the restricting portion 15. For this reason, the damper device 1 according to the present embodiment is easily brought into surface contact or line contact with the restriction portion 15, and suppresses one-point concentration of force applied to the restriction portion 15 due to point contact with the restriction portion 15. It can be configured.
Here, it is preferable that the side surface 39 (FIG. 9) of the restricting portion 15 is also formed in a surface shape at least a portion that contacts the outer peripheral portion 38 of the gear 12. If comprised in this way, both the outer peripheral part 38 and the control part 15 of the gearwheel 12 will become a surface contact in which both mutual contact parts become surface shape, and can further suppress the one point concentration of the said force.

  In addition, as shown in FIG. 12, in the first restricting portion 15a of the present embodiment, an escape portion 58 is formed at the end of the first component 15a ′ on the second component 15a ″ side. ing. The relief portion 58 of the first component 15a ′ is a portion configured to be separated (escape) from the gear 12 toward the end on the second component 15a ″ side and avoid contact with the gear 12. It is a part comprised as follows. The first restricting portion 15 a is configured such that the end portion does not contact the gear 12 by having the escape portion 58.

  Further, as described above, the gear 12 (the flat plate portion 53) has a cylindrical shape on the lower side (+ X direction side) except for the formation region of the teeth 31, but the upper side (−X direction side) is a cam surface. The large-diameter arc portion 51 is not cylindrical. As shown in FIG. 14, the lower side of the gear 12 (the flat plate portion 53) has a relief portion 55 of an arc portion, and is not configured to be continuous between the upper side and the lower side of the gear 12. That is, it has a flat surface portion 61 that is a contact surface provided radially outward from an addendum circle (an arc of the small-diameter arc portion 52) that is an outer diameter on which the teeth 31 are formed, and has the same shape as the addendum circle. A cam surface (large-diameter arc portion 51) having a center different from that of the tooth tip circle is provided, and a straight portion connecting the cam surface to the tooth tip circle is used as a contact surface. In other words, it is not a shape obtained by cutting the side portion from a circular component, but a projecting portion (cam surface) is provided for the circular component, and the circular portion and the cam surface are connected by a straight line. Is the contact surface.

Here, as represented in FIGS. 7 to 9, the first restricting portion 15 a is connected to the wall portion 42 (specifically, the wall portion 42 a and the wall portion 42 b) of the accommodating portion 14, and the second restricting portion. 15 b is connected to the wall portion 42 (specifically, the wall portion 42 c) of the accommodating portion 14. In the present embodiment, the first restricting portion 15a and the second restricting portion 15b are made of the same resin material as the accommodating portion 14 and have a structure that is connected to the wall portion 42 by integral molding with the accommodating portion 14. Of course, the 1st control part 15a and the 2nd control part 15b may be made separately from the accommodating part 14, and the structure connected with the wall part 42 with a fastener may be sufficient.
As described above, in the damper device 1 of the present embodiment, since the restricting portion 15 is connected to the wall portion 42 of the accommodating portion 14, the force applied to the restricting portion 15 can also be distributed to the wall portion 42 of the accommodating portion 14. Therefore, the applied force can be received effectively.
The “wall portion 42 of the accommodating portion 14” specifically means the wall portion 42 of the accommodating portion 14 in a direction intersecting the direction in which the rotation shaft 37 of the gear 12 extends (direction intersecting the direction X). To do.
Here, in the present embodiment, the restricting portion 15 is configured to be connected to the wall portion 42 as the outer peripheral wall of the accommodating portion 14, and can effectively receive the force applied to the restricting portion 15 without forming a separate wall portion. It is configured. However, the present invention is not limited to such a configuration, and a wall portion is formed separately from the outer peripheral wall of the housing portion 14 (for example, formed on the surface 14a of the housing portion 14 or a surface facing the surface 14a), and the regulating portion 15 is It is good also as a structure connected to a wall part.

Further, as described above, the first restricting portion 15a is connected to a plurality of locations (the wall portion 42a and the wall portion 42b) of the wall portion 42. Thereby, the damper apparatus 1 of a present Example can receive the force added to the control part 15 in multiple places of the wall part 42 of the accommodating part 14, and can be received effectively.
In the damper device 1 of the present embodiment, only the first restricting portion 15a is connected to a plurality of locations on the wall portion 42, but the second restricting portion 15b is also connected to a plurality of locations on the wall portion 42. More preferably.

  Further, as shown in FIGS. 7 to 9 and the like, all of the regulating portions 15 of the present embodiment are rib-shaped. Here, when forming the restricting portion 15 in the accommodating portion 14, due to the difference between the thermal expansion coefficient of the accommodating portion 14 and the thermal expansion coefficient of the restricting portion 15, the contact area of the restricting portion 15 with respect to the accommodating portion 14 is increased. There is a possibility that the accommodating portion 14 is deformed. However, since all the restricting portions 15 of the present embodiment are rib-shaped, the deformation of the accommodating portion 14 accompanying the formation of the restricting portion 15 can be suppressed.

As shown in FIG. 9, in the damper device 1 of the present embodiment, the contact position 41 with the gear 12 in the restricting portion 15 (specifically, the first restricting portion 15 a) is the restricting portion 15 (detailed). Is positioned away from the end 40 of the first component 15a ′) in the first restricting portion 15a. When force is applied to the end 40 of the restricting portion 15, the restricting portion 15 is particularly easily damaged. However, in the damper device 1 of this embodiment, the contact position 41 of the restricting portion 15 with the gear 12 is the end of the restricting portion 15. The position is away from the portion 40. For this reason, the damper apparatus 1 of a present Example can suppress the damage of the control part 15 effectively.
In the embodiment shown in FIG. 9, the “end portion 40 of the restricting portion 15” is a direction that intersects both the direction in which the rotating shaft 37 of the gear 12 extends and the direction F <b> 1 that receives the force from the gear 12 (that is, It means the end of the restricting portion 15 in the direction E) in FIG. The “position deviated from the end portion 40 of the restricting portion 15” corresponds to, for example, a position that does not contact the end portion 40 of the restricting portion 15.
The “position deviating from the end 40 of the restricting portion 15” is defined below by generalizing away from the structure of the embodiment shown in FIG. 9.
As described above, the “end portion of the restricting portion” is a concept for explaining a portion where the restricting portion 15 receives a force from the gear 12. That is, “the position deviated from the end of the restricting portion” means that in the restricting portion 15 formed in a certain shape, a portion that is easily damaged by the force from the gear 12 is removed, and the force is applied to a portion that is not easily damaged. It means to be configured to receive. Specifically, for example, when a portion where the restricting portion 15 is in contact with the gear 12 (for example, the side surface 39 of the restricting portion 15) has a surface or a side, the intermediate portion of the surface or the side corresponds.

Further, in the damper device 1 of the present embodiment, as already described, both the accommodating portion 14 and the restricting portion 15 are made of resin, and the restricting portion 15 is made by integral molding with the accommodating portion 14. . For this reason, the damper apparatus 1 of a present Example can provide the control part 15 easily. Further, in the damper device 1 of the present embodiment, the first restricting portion 15a and the second restricting portion 15b are made of a resin material and are integrally formed with the accommodating portion 14 so as to be connected to the wall portion 42, so that the structure is structural. It is strong.
As described above, in the damper device 1 of the present embodiment, since the restricting portion 15 is connected to the wall portion 42 of the accommodating portion 14, the force applied to the restricting portion 15 can also be distributed to the wall portion 42 of the accommodating portion 14. Therefore, the applied force can be received effectively.
However, the present invention is not limited to such a configuration, and the restricting portion 15 may not be formed integrally with the accommodating portion 14, or the restricting portion 15 and the accommodating portion 14 may be composed of different materials.
Note that, as described above, the restricting portion 15 of the present embodiment is formed integrally with the housing portion 14 and thus is formed continuously with respect to the wall portion 42 and the surface 14a of the housing portion 14. However, it is not limited to such a configuration, a configuration that is continuously formed only with respect to the wall portion 42 of the accommodating portion 14, a continuous configuration only with respect to the surface 14 a, and the surface 14 a It is good also as a structure etc. which are continuously formed only on the surface of the opposing side.

Further, as shown in FIG. 9, both the first restricting portion 15 a and the second restricting portion 15 b of this embodiment have corner portions 47, but these corner portions 47 are chamfered. In other words, at least one of the portions where the two surfaces intersect is chamfered. In this embodiment, all corners 47 are chamfered. Thus, when the restriction part 15 has the corner part 47, the corner part 47 is preferably chamfered.
When the restriction portion 15 has the corner portion 47, the restriction portion 15 is easily damaged from the corner portion 47. However, even when the restriction portion 15 has the corner portion 47 as in the damper device 1 of this embodiment, the corner portion 47 is not damaged. This is because if the chamfer is chamfered, damage to the restricting portion 15 can be effectively suppressed.
Note that “the corner 47 is chamfered” means that the corner 47 has a curved surface (for example, a round like the corner 47 in the present embodiment) in addition to the case where the corner 47 is chamfered flat. This includes the case where it is chamfered.

Further, as shown in FIGS. 6 to 9, the gear 12 of the present embodiment has a meshing portion 46 in which teeth 31 are provided on a part of a concentric circle with reference to the rotation shaft 37 of the gear 12. . Then, the driving force of the stepping motor 48 is transmitted to the gear 13 by engaging the meshing portion 46 with the teeth 32 of the gear 13. The damper device 1 according to the present embodiment includes the gear 12 having such a configuration, so that a state where the meshing portion 46 of the gear 12 is not meshed with the tooth 32 of the gear 13 can be easily made. Therefore, it is easy to stop the gear 13 at a predetermined position (that is, keep the opening / closing plate 6 in the open position or the closed position).
As described above, the small-diameter arc portion 52 of the flat plate portion 53 has the outer peripheral portion 38 together with the flat portion 61, the corner portion 54, and the large-diameter arc portion 51 on the upper side (−X direction side) except for the formation region of the teeth 31. However, the lower side (+ X direction side) is generally arcuate (cylindrical). Further, the small-diameter arc portion 52 has teeth 31 only in a partial region in the circumferential direction. As described above, the gear 13 is a sector gear, and teeth 32 are formed on the outermost peripheral portion (arc portion) of the sector. In addition, a contact tooth that contacts the small-diameter arc portion 52 is provided in a partial region on the lower side (+ X direction side) of the tooth 32. Since the gear 13 has such a configuration, when the tooth 31 is in a position where it engages with the tooth 32, the gear 13 is restrained and positioned by the tooth 31, and when the tooth 31 is not in a position where it engages with the tooth 32, the small diameter is obtained. Positioning is restricted by the portion of the arc portion 52 where the teeth 31 are not formed. With such a configuration, the gear 12 is always in contact with the gear 12 and is effectively positioned without rattling.

Next, the rotation of the gear 11 and the gear 12 accompanying the rotation of the gear 10 and the rotation of the gear 13 accompanying the rotation of the gear 12 will be described.
FIG. 15 is a schematic diagram for explaining the operation of each gear in the driving force transmission device 2 of the damper device 1 of this embodiment.
FIG. 25 is a schematic diagram for explaining the operation of each gear in the driving force transmission device of the damper device of the reference example. Note that FIG. 25 is a partially transparent view of a gear 212 as a transmission gear corresponding to the gear 12 of this embodiment so that the configuration of the restricting portion 15 (the restricting portion 15e) can be easily understood. In the damper device of the reference example, a groove-like passage 260 for one restricting portion 15e is formed in the gear 212. When the gear 212 is rotated, the restricting portion 15e comes into contact with the end of the passage 260 so that the rotation of the gear 212 is restricted.

As shown in FIG. 15, in the damper device 1 of the present embodiment, the teeth 28 of the gear 10 are in relation to the gear 11 at the closed-closed origin position where both the open / close plate 5 and the open / close plate 6 are closed. It is located on the opposite side across the rotating shaft 37. In this state, the gear 12 is in a position where the teeth 31 are rotated 120 ° in the clockwise direction CW with respect to the teeth 28 of the gear 10. Here, the arrangement of the gear 11 at the closed-closed origin position corresponds to a state in which the opening / closing plate 5 is in the closed position, and the arrangement of the gear 13 at the closed-closed origin position corresponds to a state in which the opening / closing plate 6 is in the closed position. ing.
Here, in the damper device 1 of the present embodiment, the first position corresponds to the fully open position of the opening / closing plate 6 and the second position corresponds to the fully closed position. When the first position and the second position correspond to FIG. 15, the first position (the fully open position of the opening / closing plate 6) is the open-open origin position, the open-open stop position, and the close-open stop position (right side in FIG. 15). 3), the gear 12 contacts the first restricting portion 15a. On the other hand, the second position (the fully closed position of the opening / closing plate 6) corresponds to a closed-closed origin position, a closed-closed stop position, and an open-closed stop position (three on the left side in FIG. 15). It abuts on the restricting portion 15b.

  When the stepping motor 48 is driven from the closed-closed origin position and the driving force is transmitted to the gear 10 via the gear train 9, the gear 10 is rotated 120 ° in the clockwise direction CW to be in the closed-closed stop position. It becomes. The teeth 28 of the gear 10 do not come into contact with the teeth 29 of the gear 11 between the closed-closed origin position and the closed-closed stop position. That is, the gear 10 and the gear 11 are not engaged between the closed-closed origin position and the closed-closed stop position. Further, the contact portion 34 of the gear 10 does not contact the contacted portion 35 of the gear 12 from the closed-closed origin position to the closed-closed stop position. That is, the gear 10 and the gear 12 are not engaged between the closed-closed origin position and the closed-closed stop position. Therefore, neither the gear 11 nor the gear 13 rotates (rotates) from the closed-closed origin position to the closed-closed stop position, and neither the open / close plate 5 nor the open / close plate 6 changes in state. Accordingly, in the closed-closed stop position, both the opening / closing plate 5 and the opening / closing plate 6 are in the closed position.

  When the stepping motor 48 is further driven from the closed-closed stop position and the driving force is further transmitted to the gear 10 through the gear train 9, the gear 10 is further rotated 120 ° in the clockwise direction CW. Closed stop position. Between the closed-closed stop position and the open-closed stop position, the tooth 28 of the gear 10 and the tooth 29 of the gear 11 come into contact with each other, and the gear 11 rotates in the counterclockwise direction CCW. That is, between the closed-closed stop position and the open-closed stop position, the gear 10 and the gear 11 are engaged, and the gear 11 rotates in the counterclockwise direction CCW. On the other hand, the contact portion 34 of the gear 10 does not contact the contacted portion 35 of the gear 12 from the closed-closed stop position to the open-closed stop position (the contact portion 34 and the covered portion 34 are not contacted with the contacted portion 35 of the gear 12 until the contacted portion 34 of the gear 12 is reached. Contact part 35). That is, the gear 10 and the gear 12 are not engaged from the close-close stop position to the open-close stop position. For this reason, during the period from the closed-closed stop position to the open-closed stop position, the gear 11 rotates to open the opening / closing plate 5, and the gear 13 does not rotate (the state of the opening / closing plate 6 does not change). . Therefore, in the open / close stop position, the opening / closing plate 5 is in the open position and the opening / closing plate 6 is in the closed position.

  When the stepping motor 48 is further driven from the open-closed stop position and the driving force is further transmitted to the gear 10 through the gear train 9, the gear 10 is further rotated 120 ° in the clockwise direction CW. Open origin position. The tooth 28 of the gear 10 and the tooth 29 of the gear 11 do not contact between the open-close stop position and the open-open origin position. That is, the gear 10 and the gear 11 are not engaged between the open-close stop position and the open-open origin position. On the other hand, between the open-close stop position and the open-open origin position, the contact portion 34 of the gear 10 and the contacted portion 35 of the gear 12 come into contact with each other, and the gear 12 rotates in the clockwise direction CW. Further, when the tooth 31 of the gear 12 meshes with the tooth 32 of the gear 13, the gear 13 rotates in the counterclockwise direction CCW. That is, the gear 10 and the gear 12 and the gear 12 and the gear 13 are engaged from the open-close stop position to the open-open origin position. Therefore, the gear 11 does not rotate between the open-close stop position and the open-open origin position (the state of the opening / closing plate 5 does not change), but the gear 13 rotates and the opening / closing plate 6 is opened. Go. Therefore, the open / close plate 5 and the open / close plate 6 are both in the open position at the open-open origin position.

  By driving the stepping motor 48 from the open-opening origin position and transmitting the driving force to the gear 10 via the gear train 9, this time, when the gear 10 is rotated 120 ° in the counterclockwise direction CCW, the stepping motor 48 is opened. -It becomes the open stop position. The teeth 28 of the gear 10 do not contact the teeth 29 of the gear 11 from the open-open origin position to the open-open stop position. That is, the gear 10 and the gear 11 are not engaged between the open-open origin position and the open-open stop position. Further, the contact portion 34 of the gear 10 does not contact the contacted portion 35 of the gear 12 from the open-open origin position to the open-open stop position. That is, the gear 10 and the gear 12 are not engaged between the open-open origin position and the open-open stop position. For this reason, neither the gear 11 nor the gear 13 rotates (rotates) from the open-open origin position to the open-open stop position, and neither the open / close plate 5 nor the open / close plate 6 changes in state. Therefore, in the open-open stop position, both the open / close plate 5 and the open / close plate 6 are in the open position.

  When the stepping motor 48 is further driven from the open-open stop position and the driving force is further transmitted to the gear 10 through the gear train 9, the gear 10 is further closed by rotating it 120 ° in the counterclockwise direction CCW. -It becomes the open stop position. Between the open-open stop position and the close-open stop position, the tooth 28 of the gear 10 and the tooth 29 of the gear 11 come into contact with each other, and the gear 11 rotates in the clockwise direction CW. That is, between the open-open stop position and the close-open stop position, the gear 10 and the gear 11 are engaged, and the gear 11 rotates in the clockwise direction CW. On the other hand, the contact portion 34 of the gear 10 does not contact the contacted portion 35 of the gear 12 from the open-open stop position to the close-open stop position (the contact portion 34 and the covered portion are not contacted with the contacted portion 35 of the gear 12 until the closed-open stop position is reached). Contact part 35). That is, the gear 10 and the gear 12 are not engaged from the open-open stop position to the close-open stop position. For this reason, during the period from the open-open stop position to the close-open stop position, the gear 11 rotates to close the open / close plate 5 and the gear 13 does not rotate (the state of the open / close plate 6 does not change). . Accordingly, in the closed-open stop position, the opening / closing plate 5 is in the closed position and the opening / closing plate 6 is in the open position.

  Then, the stepping motor 48 is further driven from the closed-open stop position, and the driving force is further transmitted to the gear 10 via the gear train 9, thereby further rotating the gear 10 in the counterclockwise direction CCW by 120 °. And the closed-closed origin position. The tooth 28 of the gear 10 and the tooth 29 of the gear 11 do not contact between the closed-open stop position and the closed-closed origin position. That is, the gear 10 and the gear 11 are not engaged between the closed-open stop position and the closed-closed origin position. On the other hand, between the closed-open stop position and the closed-closed origin position, the contact portion 34 of the gear 10 and the contacted portion 35 of the gear 12 come into contact with each other, and the gear 12 rotates in the counterclockwise direction CCW. Further, when the tooth 31 of the gear 12 meshes with the tooth 32 of the gear 13, the gear 13 rotates in the clockwise direction CW. That is, between the closed-open stop position and the closed-closed origin position, the gear 10 and the gear 12, and the gear 12 and the gear 13 are engaged. Therefore, the gear 11 does not rotate between the closed-open stop position and the closed-closed origin position (the state of the opening / closing plate 5 does not change), but the gear 13 rotates and the opening / closing plate 6 is closed. Go. Therefore, both the opening / closing plate 5 and the opening / closing plate 6 are in the open position at the closed-closed origin position.

  Here, from the closed-closed origin position to the open-closed stop position via the closed-closed stop position, and from the open-opened origin position to the closed-open stop position via the open-opened stop position. Are not engaged with each other. That is, it is assumed that the gear 12 does not rotate between these. The damper device 1 according to the present embodiment includes a pressing portion 36 (FIGS. 7, 8, and 15) for preventing the gear 12 from being affected by the rotation of the gear 10 and rotating together. . The pressing portion 36 is pressed against the gear 12 so that the gear 12 is influenced by the rotation of the gear 10 and is not rotated. In addition, although the press part 36 of a present Example is a metal leaf | plate spring, it is not limited to the press part of such a structure, For example, it is also possible to use elastic bodies, such as rubber | gum.

Note that, as described above, the gear 12 is assumed to rotate only when the gear 10 moves within a range in which the contact portion 34 pushes the contacted portion 35 in the rotation range of the gear 10. It has become. However, in a range other than the range where the contact portion 34 pushes the contacted portion 35, the rotational force of the gear 10 is transmitted to the gear 12 via grease (lubricant) or the like interposed between the gear 10 and the gear 12. Therefore, there is a possibility that the gear 12 is accompanied. This is because when the gear 10 is rotated by the viscous resistance or sliding resistance of the grease interposed between the gear 10 and the gear 12, the gear 12 follows and rotates.
Therefore, as described above, the damper damper device 1 according to the present embodiment applies a load to the gear 12 by bringing the corner portion 54 into contact with the pressing portion 36 in a state where the contact portion 34 and the contacted portion 35 are not in contact with each other. Thus, the gear 12 is prevented from rotating with the rotation of the gear 10.

As described above, the damper device 1 according to the present embodiment includes the contact portion 34, and the gear 12 and the rotation shaft 37 are common, and the driving force of the stepping motor 48 is transmitted to the gear 13 through the contact portion 34. A gear 10 as a rotating gear is provided. Further, the gear 12 has a contacted portion 35, and the driven portion that rotates in conjunction with the gear 10 when the contact portion 34 and the contacted portion 35 come into contact with each other and the contacted portion 35 receives a force by the contact portion 34. It is a gear.
Further, as shown in FIG. 15, an interlocking range that is a part of the rotation range of the gear 10 (from the open-close stop position to the open-open origin position, and from the close-open stop position to the close-close position). When the contact portion 34 rotates and moves between the origin position and the contact portion 34 and the contacted portion 35 come into contact with each other, a non-interlocking range (open-closed stop position from the closed-closed origin position) outside the interlocking range. The contact portion 34 and the contacted portion 35 are released from contact with each other when the contact portion 34 rotates and moves between the position of the opening-opening origin position and the position of the closing-opening stop position. Yes. And the press part 36 which prevents the accompanying by giving a load with respect to rotation in the non-interlocking range of the gearwheel 12 is provided.
Like the damper device 1 of this embodiment, the transmission gear (gear 12) and the rotation shaft (rotation shaft 37) are provided with a common rotation gear (gear 10), and the transmission gear (gear 12) is the rotation gear (gear 10). In the configuration that is a driven gear that rotates the interlocking range in which the contact portion 34 and the contacted portion 35 contact with each other, the transmission gear is accompanied when the contact portion 34 rotates in the non-interlocking range. There is a case. This is because a frictional force is generated between the gear 10 and the gear 12. However, since the damper device 1 of the present embodiment includes the pressing portion 36 pressed against the gear 12, the gear 12 is accompanied when the contact portion 34 rotates and moves in the non-interlocking range. It is the structure which can suppress.

  As can be seen by comparing FIG. 15 and FIG. 25, the operation of each gear of the damper placement of the reference example shown in FIG. 25 is the same as the operation of each corresponding gear of the damper device 1 of this embodiment. is there. Specifically, the gear 10 and the gear 210 are respectively in the closed-closed origin position, the closed-closed stop position, the open-closed stop position, the open-opened origin position, the open-opened stop position, and the closed-opened stopped position. The positions, the positions of the gear 11 and the gear 211, the positions of the gear 12 and the gear 212, and the positions of the gear 13 and the gear 213 are the same.

  Here, the position of the gear 12 of the damper device 1 of the present embodiment is regulated by the second regulating portion 15b at the closed-closed origin position, the closed-closed stop position, and the open-closed stop position, and the open-opened origin position. In the open-open stop position and the close-open stop position, the position is restricted by a restriction part 15 (first restriction part 15a) different from the second restriction part 15b. On the other hand, the gear 212 of the damper device of the reference example is in any of the closed-closed origin position, the closed-closed stop position, the open-closed stop position, the open-opened origin position, the open-opened stop position, and the closed-opened stopped position. The position is also restricted by the same restriction part 15 (restriction part 15e). For this reason, since the damper apparatus 1 of a present Example can disperse | distribute the force applied to the control part 15 from the transmission gear corresponding to the gearwheel 12 and the gearwheel 212, it can suppress the damage of the control part 15 compared with the damper apparatus of a reference example. It is configured. Further, since the outer peripheral portion 38 of the gear 12 is in contact with the restricting portion 15, the distance L1 from the rotation shaft 37 of the gear 12 to the contact position between the restricting portion 15 and the gear 12 is represented in FIG. It can be set longer than the distance L2 in the damper device of the reference example. For this reason, it is the structure which can suppress the damage of the control part 15 compared with the damper apparatus of a reference example.

Next, the damper device 1 of the present embodiment will be described from another viewpoint.
FIG. 16 is a schematic diagram for explaining the damper device 1 of the present embodiment. Among these, Fig.16 (a) is the schematic of the driving force transmission apparatus 2 of the damper apparatus 1 of a present Example. FIG. 16B is a schematic view of the regulating portion 15e of the damper device of the reference example shown in FIG. FIG. 16C is a schematic diagram showing an example of a restricting portion applicable as the restricting portion of the present invention.

As shown in FIG. 16A, the first restricting portion 15a as the restricting portion 15 of the present embodiment is such that the length in the direction F1 receiving the force from the gear 12 is longer than the length in the direction perpendicular to the direction F1. It is long and has a second component 15a ″ as an extending portion extending toward the direction F1 receiving the force from the gear 12. And the front-end | tip part 62 by the side of the direction F1 which receives force from the transmission gearwheel (gear 12) in the 2nd structure part 15a '' is located on the extension line in the direction F1 of the contact position 41 with the gearwheel 12 in the 1st control part 15a. To do. In the case where the restricting portion 15 has an extending portion, if the tip end portion 62 is positioned on the extension line of the contact position 41 in the direction F1 in which force is received from the gear 12, the tip end portion 62 is in the contact position 41. It is possible to receive the force received from the transmission gear more effectively than the configuration that is not located on the extension line. For this reason, the damper device 1 according to the present embodiment can effectively receive the force received from the gear 12 by the second component 15 '', and can prevent the restricting portion 15 from being damaged. It has become.
In the damper device 1 of the present embodiment, the first restricting portion 15a corresponds to the above configuration, and the second restricting portion 15b does not correspond to the above configuration, but one of the two restricting portions 15 corresponds to the above configuration. If it does, it corresponds to this invention. However, it is more preferable that both of the two restricting portions 15 correspond to the above configuration.

On the other hand, the restricting portion 15e of the damper device of the reference example is engaged with a groove-shaped passage 260 formed in the gear 212 and extending along the circumferential direction (see FIG. 25). Also, as shown in FIGS. 16B and 25, the restricting portion 15 e is also formed in a shape along the circumferential direction corresponding to the passage 260. Then, one end portion of the passage 260 comes into contact with a corresponding one end portion (for example, the contact position (41) in FIG. 16B) of the restricting portion 15e, and the rotation of the gear 212 in one direction is restricted. The other end abuts on the other end located on the side opposite to the one end of the restricting portion 15e (for example, the front end 62 in FIG. 16B), and the gear 212 moves in the opposite direction opposite to the one direction. The rotation is restricted, and the one end and the other end of the passage 260 and the one end and the other end of the restricting portion 15e are all formed in a substantially planar shape along the radial direction of the gear 212. The one end of the passage 260 and one end of the restricting portion 15e, and the other end of the passage 260 and the other end of the restricting portion 15e are configured to be in surface contact with each other.
The restricting portion 15e has a structure in which the tip end portion 62 (the other end portion) is not positioned on the extension line in the direction F3 of the contact position 41 (one end portion) with the gear 212 in the direction F3 in which a force is received from the gear 212. The region S shown in FIG. 16B in the restricting portion 15e is located outside the region of the direction F3 that receives the force from the gear 212, and therefore cannot receive the force received from the gear 212 from the front. In other words, it has a region S in which the force received from the gear 212 cannot be effectively received.

The restricting portion 15f configured as shown in FIG. 16C is bent and extended in a substantially bow shape in plan view. The restriction portion 15f is also configured to be positioned on the extension line in the direction F4 of the contact position 41 in the direction F4 in which the tip portion 62 receives the force from the gear 12, so that the force received from the gear 12 can be effectively received, It can suppress that the control part 15 is damaged. The restricting portion 15f is further configured so that the contact position 41 on one end side of the restricting portion 15f and the tip end portion 62 on the other end side are substantially parallel to each other. In the case where both the contact position 41 of the restricting portion 15f and the position of the tip end portion 62 in FIG. 16C are used as the portions for restricting the rotation of the gear 12, the contact position 41 of the restricting portion 15f on the gear 12 side. It is effective to receive the force received from the transmission gear if the portion that contacts the front end portion and the portion that contacts the tip portion 62 are configured to be in surface contact as a corresponding flat surface. For example, when the contact areas of the restricting portion 15e and the restricting portion 15f with respect to the housing portion are the same, the restricting portion 15f can more effectively receive the force received from the transmission gear than the restricting portion 15e.
The shape of the restricting portion 15 can be other than the bow shape like the restricting portion 15f, and can be, for example, an S-shape. Various modifications are possible as long as the tip 62 is positioned on the extension line in the direction F4 of the contact position 41 in the direction F4 in which the force is received from the gear 12.

Next, an embodiment of a damper device having a configuration different from that of the damper device of the first embodiment will be described.
[Example 2] (FIGS. 17 to 22)
FIGS. 17-22 is the schematic showing the driving force transmission apparatus 2 of the damper apparatus of Example 2. FIGS. Among these, FIGS. 19 to 22 show some components omitted for easy understanding of the internal configuration. FIG. 17 is a diagram corresponding to FIG. 4 of the driving force transmission device 2 according to the first embodiment. FIG. 18 is a diagram corresponding to FIG. 6 of the driving force transmission device 2 according to the first embodiment. FIG. 21 is a diagram corresponding to FIG. 7 of the driving force transmission device 2 according to the first embodiment. FIG. 22 is a diagram corresponding to FIG. 8 of the driving force transmission device 2 according to the first embodiment. In addition, the structural member which is common in the said Example 1 is shown with the same code | symbol, and abbreviate | omits detailed description.
The damper device according to the present embodiment has the same configuration as that of the damper device 1 according to the first embodiment except for the driving force transmission device 2.

As shown in FIGS. 17 to 22, the driving force transmission device 2 according to the present embodiment has the same configuration as that of the driving force transmission device 2 according to the first embodiment except for the configuration of the restricting portion 15 such as the configuration of each gear. It is.
As shown in FIGS. 20 to 22, the restricting portion 15 of the present embodiment includes a first configuration portion 15 c ′ extending in a direction different from the direction F <b> 5, which is a direction to receive force, and a second configuration extending in the direction F <b> 5. A first restricting portion 15c having a portion 15c '', a first component 15d 'extending in a direction different from the direction F6 that is a direction to receive the force, and a second component 15d''extending in the direction F6. And a second restricting portion 15d. Although the restricting portion 15 (the first restricting portion 15c and the second restricting portion 15d) of the present embodiment is not configured to be connected to the wall portion 42 of the accommodating portion 14, a sufficient space cannot be secured inside the accommodating portion 14. In the case of a configuration or the like, the formation of the restricting portion 15 can be facilitated by adopting such a configuration.

[Examples 3 to 5] (FIGS. 23 to 24)
FIG. 23 is a schematic diagram illustrating a part of the driving force transmission device 2 of the damper device according to the third embodiment, corresponding to FIG. 9 of the driving force transmission device 2 according to the first embodiment. FIG. 24 is a schematic diagram illustrating a part of the driving force transmission device 2 according to the third to fifth embodiments. Among these, FIG. 24A is a partial cross-sectional view of the driving force transmission device 2 of Example 3 as viewed from the direction D in FIG. FIG. 24B is a partial cross-sectional view of the driving force transmission device 2 according to the fourth embodiment, and corresponds to FIG. 24A that is a partial cross-sectional view of the driving force transmission device 2 according to the third embodiment. FIG. FIG. 24C is a partial cross-sectional view of the driving force transmission device 2 according to the fifth embodiment, and corresponds to FIG. 24A that is a partial cross-sectional view of the driving force transmission device 2 according to the third embodiment. FIG. In addition, the structural member which is common in the said Example 1 and Example 2 is shown with the same code | symbol, and abbreviate | omits detailed description.
In addition, all the damper apparatuses of Examples 3 to 5 have the same configuration as the damper apparatus of Example 1 except for the driving force transmission device 2.

  Each of the damper devices of the third to fifth embodiments includes a reinforcing portion 43 that reinforces the restricting portion 15. For this reason, all of the damper devices according to the third to fifth embodiments are configured to be able to effectively prevent the restricting portion 15 from being damaged.

Below, the reinforcement part 43 of the damper apparatus of Example 3-Example 5 is demonstrated in order. The shape of the restricting portion 15 in the third and fifth embodiments is similar to the shape of the restricting portion 15 in the first embodiment.
First, in the damper device of the third embodiment, as shown in FIGS. 23 and 24A, the restricting portion 15 (specifically, the first component 15a ′ in the first restricting portion 15a) is provided from the gear 12. A reinforcing portion 43 (reinforcing portion 43a) is provided on the opposite side (downstream side in the direction F1) from the side receiving the contact force. Here, the reinforcement part 43a of a present Example is formed in the surface 14b on the opposite side to the surface 14a of the side in which the control part 15 in the accommodating part 14 is provided, as Fig.24 (a) represents. . The reinforcing portion 43a of the present embodiment is configured to be able to reinforce the restricting portion 15 by supporting the restricting portion 15 on the downstream side in the direction F1 receiving the force from the gear 12.

Next, as shown in FIG. 24B, the damper device of Example 4 is a position that faces the restricting portion 15 (a portion that becomes a lid when the surface 14 a is considered as the bottom surface of the accommodating portion 14. A reinforcing portion 43 (reinforcing portion 43b) is provided on the surface 14b). The restricting portion 15 of the present embodiment is provided with a convex portion 44, and the reinforcing portion 43b of the present embodiment is provided with a concave portion 45 in which the convex portion 44 can be fitted. And the reinforcement part 43b of a present Example is formed in the surface 14b on the opposite side to the surface 14a of the side in which the control part 15 in the accommodating part 14 is provided, as FIG.24 (b) represents. The reinforcing portion 43b of the present embodiment is configured to be able to reinforce the restricting portion 15 by receiving the force received by the restricting portion 15 from the gear 12 through the concave portion 45 fitted to the convex portion 44.
In this embodiment, the restricting portion 15 is provided with a convex portion and the reinforcing portion 43b is provided with a concave portion. However, the restricting portion 15 is provided with a concave portion, and the reinforcing portion 43b is provided with a convex portion. It may be.

  Next, as shown in FIG. 24C, the damper device according to the fifth embodiment is a side opposite to the side where the restricting portion 15 receives the force from the gear 12, and the restricting portion 15 in the housing portion 14 is The reinforcement part 43 (reinforcement part 43c) is provided in the surface 14a of the provided side. The reinforcing portion 43c of the present embodiment is configured such that the restricting portion 15 can be reinforced by supporting the restricting portion 15 on the downstream side in the direction F1 receiving the force from the gear 12.

The present invention is not limited to the above-described embodiments, and can be realized with various configurations without departing from the spirit of the present invention. For example, the technical features in the embodiments corresponding to the technical features in the embodiments described in the summary section of the invention are intended to solve part or all of the above-described problems, or one of the above-described effects. In order to achieve part or all, replacement or combination can be appropriately performed. For example, the damper device of the first to fifth embodiments is configured to include two opening / closing members (the opening / closing plate 5 and the opening / closing plate 6), but may be configured to include only one opening / closing member. In the case of the configuration having only one opening / closing member, the gear 12 as the transmission gear and the gear 13 as the output gear are not necessary, and therefore the driving force of the drive source can be transmitted to the gear 11 as the output gear and the restricting portion. The transmission gear whose rotation range is regulated by the gear 15 can be the gear 10.
Further, if the technical feature is not described as essential in the present specification, it can be deleted as appropriate.

DESCRIPTION OF SYMBOLS 1 ... Damper apparatus, 2 ... Driving force transmission apparatus, 3 ... 1st frame, 4 ... 2nd frame,
5 ... Opening / closing plate (opening / closing member), 6 ... Opening / closing plate (opening / closing member), 7 ... Opening, 8 ... Opening,
9 ... Gear train, 10 ... Gear (rotary gear), 11 ... Gear (output gear),
12 ... Gear (transmission gear, driven gear), 13 ... Gear (output gear), 14 ... Housing,
14a ... the surface on the side where the restricting portion 15 is provided, 14b ... the surface opposite to the surface 14a,
15 ... restriction part, 15a ... 1st restriction part, 15a '... 1st component,
15a '' ... 2nd component (extension part), 15b ... 2nd control part, 15b '... 1st component,
15b '' ... second component, 15c ... first restrictor, 15d ... second restrictor,
15e ... restriction part, 15f ... restriction part (extension part), 16 ... rotating shaft, 17 ... gear,
18 ... 1st gear, 19 ... Large diameter gear part, 20 ... Small diameter gear part, 21 ... 2nd gear,
22 ... large diameter gear part, 23 ... small diameter gear part, 24 ... third gear, 25 ... large diameter gear part,
26 ... Small diameter gear part, 27 ... Teeth, 28 ... Teeth, 29 ... Teeth, 30 ... Rotating shaft, 31 ... Teeth,
32 ... teeth, 33 ... rotating shaft, 34 ... contact part, 35 ... contacted part, 36 ... pressing part,
37 ... Rotating shaft, 38 ... Outer peripheral portion of gear 12, 39 ... Side surface of regulating portion 15,
40 ... the end of the restricting portion 15, 41 ... the contact position, 42 ... the wall portion, 42a ... the wall portion,
42b ... wall part, 42c ... wall part, 43 ... reinforcing part, 43a ... reinforcing part, 43b ... reinforcing part,
43c ... reinforcing part, 44 ... convex part, 45 ... concave part, 46 ... meshing part, 47 ... corner part,
48 ... stepping motor (drive unit), 49 ... outer peripheral surface (contact surface) of the gear 12,
50 ... ribs, 51 ... large diameter arc part, 52 ... small diameter arc part, 53 ... flat plate part, 54 ... corner part,
55 ... Escape portion, 56 ... Placement surface, 57 ... Surface on the placement surface 56 side of the flat plate portion 53, 58 ... Escape portion,
59 ... Circumferential part, 60 ... Contact part, 61 ... Plane part, 62 ... Tip part, 101 ... Refrigerator,
102 ... Refrigerator room, 103 ... Freezer room, 104 ... Vegetable room, 105 ... Cooler,
106 ... Blower, 107 ... Damper device, 108 ... Damper device, 210 ... Gear,
211 ... gear, 212 ... gear, 213 ... gear, 260 ... passage, AF ... airflow,
E: Direction different from the direction of receiving force, F1: Direction of receiving force,
F2 ... direction to receive the received force, F3 ... direction to receive the force, F4 ... direction to receive the force,
F5 ... direction to receive force, F6 ... direction to receive force, L1 ... distance, L2 ... distance,
S: Area where force received from the transmission gear cannot be received effectively

Claims (14)

A driving source;
An opening and closing member that opens and closes by the driving force of the driving source;
An output gear that outputs the driving force of the driving source to the opening and closing member;
A transmission gear for transmitting the driving force of the driving source to the output gear;
A restricting portion for restricting a rotation range of the transmission gear by contacting the transmission gear;
The regulating portion is provided, and a housing portion for housing the output gear and the transmission gear,
The transmission gear is configured to rotate in a rotation range from a first position to a second position by restricting a rotation range by the restriction unit,
The restricting portion includes an extending portion extending in a direction of receiving a force from the transmission gear, wherein a length in a direction of receiving the force from the transmission gear is longer than a length orthogonal to a direction of receiving the force from the transmission gear. Have
A tip portion on the side of receiving the force from the transmission gear in the extending portion is located on an extension line of a contact position with the transmission gear in the restricting portion in a direction receiving the force from the transmission gear. Damper device. A driving source;
An opening and closing member that opens and closes by the driving force of the driving source;
An output gear that outputs the driving force of the driving source to the opening and closing member;
A transmission gear for transmitting the driving force of the driving source to the output gear;
A restricting portion for restricting a rotation range of the transmission gear by contacting the transmission gear;
The regulating portion is provided, and a housing portion for housing the output gear and the transmission gear,
The transmission gear is configured to rotate in a rotation range from a first position to a second position by restricting a rotation range by the restriction unit,
The restricting portion contacts the transmission gear and extends in a direction different from the direction receiving the force from the transmission gear by contacting the transmission gear, and the first configuration portion transmits the transmission. And a second component that extends in a direction of receiving a force from the transmission gear by contacting the gear. The damper device according to claim 1 or 2,
The damper device is configured to restrict rotation of the transmission gear by contacting an outer peripheral portion of the transmission gear. The damper device according to any one of claims 1 to 3,
The damper gear according to claim 1, wherein the transmission gear has a contact surface with the restricting portion. The damper device according to any one of claims 1 to 4,
The damper device is characterized in that the restricting portion is connected to a wall portion of the accommodating portion. The damper device according to claim 5, wherein
The damper device according to claim 1, wherein the wall portion is an outer peripheral wall of the housing portion. The damper device according to claim 5 or 6,
The damper device is characterized in that the restricting portion is connected to a plurality of locations of the wall portion. The damper device according to claim 7,
The damper device is characterized in that the restricting portion has a rib shape. The damper device according to any one of claims 1 to 8,
The damper device according to claim 1, wherein a contact position of the restricting portion with the transmission gear is a position deviated from an end portion of the restricting portion. The damper device according to any one of claims 1 to 9,
The damper device is characterized in that the restricting portion is integrally formed with the accommodating portion. The damper device according to any one of claims 1 to 10,
A rotation gear that has a contact portion, the transmission gear and the rotation shaft are common, and transmits the driving force of the drive source to the transmission gear via the contact portion;
The transmission gear has a contacted portion, and the driven gear rotates in conjunction with the rotating gear when the contacted portion and the contacted portion come into contact with each other and the contacted portion receives a force from the contact portion. And
When the contact portion rotates and moves in an interlocking range that is a part of the rotation range of the rotating gear, the contact portion and the contacted portion are in contact with each other, and the contact portion is in a non-interlocking range outside the interlocking range. When rotating, the contact between the contact portion and the contacted portion is released,
A damper device comprising: a pressing portion that prevents accompanying rotation by applying a load to rotation of the transmission gear in the non-interlocking range. The damper device according to any one of claims 1 to 11,
The transmission gear has a meshing portion in which teeth are provided in a part of a concentric circle with respect to the rotation axis of the transmission gear, and the meshing portion meshes with the teeth of the output gear to thereby generate the drive source. The damper device is configured to transmit the driving force to the output gear. The damper device according to any one of claims 1 to 12,
A damper device comprising a reinforcing portion that reinforces the restricting portion. The damper device according to any one of claims 1 to 13,
The damper device is characterized in that at least one of the portions where the two surfaces intersect is chamfered.

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