JP2014131400A - Motor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motor device capable of saving weight of a housing.SOLUTION: To a housing 16, a first rib 56 and a second rib 58 extending from a supporting part 52 toward the outside in a radial direction of a supporting shaft 34 are formed. The first rib 56 is extended along a line (a first virtual line L1) connecting between a connector (an engagement part 54) between a pinion gear 28 and a coupling lever 30 and a coupling shaft 40 between a worm wheel 26 and the coupling lever 30 at the time when the coupling lever 30 is located at a central position between an upper dead center position and a lower dead center position. The second rib 58 is extended along a line (a second virtual line L2) connecting between the connector (the engagement part 54) between the pinion gear 28 and the coupling lever 30 and the coupling shaft 40 between the worm wheel 26 and the coupling lever 30 at the time when the coupling lever 30 is located at a central position between the lower dead center position and the upper dead center position.

Description

  The present invention relates to a motor device.

  2. Description of the Related Art Conventionally, a motor main body having a rotation shaft, a transmission mechanism including an input-side rotation member that is rotatably supported by a support shaft and that is rotated by transmission of the rotational force of the rotation shaft, and a support portion that supports the support shaft A motor device including a housing that houses a transmission mechanism is also known. In addition, there is a motor device of this type in which a plurality of ribs are radially formed around a support portion in a housing (see, for example, Patent Document 1).

JP-A-11-262215

  However, in such a motor device, there may be a case where stress is not sufficiently generated in any one of a plurality of ribs formed radially around the support portion when the transmission mechanism is operated. In this case, the use of the material forming the housing is inefficient and the mass of the housing is increased.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a motor device capable of reducing the weight of a housing.

  In order to solve the above problem, the motor device according to claim 1 is rotatably supported by a motor body having a rotation shaft and a support shaft, and the rotation force of the rotation shaft is transmitted to rotate. A side rotating member, an output side rotating member fixed to the output shaft, one end connected to a position eccentric from the support shaft in the input side rotating member, and the other end connected to the output in the output side rotating member. Connected to a position eccentric from the shaft, the output-side rotating member is reciprocally rotated by reciprocating between a top dead center position and a bottom dead center position as the input-side rotating member rotates in one direction. A connection lever, a support portion that supports the support shaft, a housing that houses the input-side rotation member, the output-side rotation member, and the connection lever, and a housing that is formed in the housing, and the support The output-side rotating member when extending from the support shaft in the radial direction and the connecting lever is located at a central position between the top dead center position and the bottom dead center position, and A first rib extending along a line connecting the connecting portion of the connecting lever, the input side rotating member and the connecting portion of the connecting lever, and formed on the housing, and radially outward of the support shaft from the support portion And extending along a line connecting the connecting portion and the connecting portion when the connecting lever is located at a central position between the bottom dead center position and the top dead center position. A second rib.

  In the motor device according to the first aspect, when the rotating shaft of the motor body rotates, the rotational force of the rotating shaft is transmitted to the input side rotating member, and the input side rotating member rotates in one direction. As the input side rotation member rotates in one direction, the connecting lever reciprocates between the top dead center position and the bottom dead center position, and the output shaft is reciprocated together with the output side rotation member.

  By the way, when the connecting lever moves from the top dead center position to the bottom dead center position, the connecting lever is connected to the connecting portion of the output side rotating member and the connecting lever and the connecting portion of the input side rotating member and the connecting lever. Thrust force (tensile direction) acts along. On the other hand, also when the connecting lever moves from the bottom dead center position to the top dead center position, a thrust (pushing direction) acts on the connecting lever along the direction connecting the connecting portion and the connecting portion. That is, the direction in which the thrust acts via the connecting lever is within the thrust acting range between the two lines connecting the connecting portion and the connecting portion at each of the center positions between the top dead center position and the bottom dead center position. It has become.

  Here, paying attention to the above points, of the first rib and the second rib formed around the support portion that supports the support shaft of the input side rotation member, the first rib has the connecting lever at the top dead center position. The second rib is formed along the line connecting the connecting portion and the connecting portion when located at the central position between the bottom dead center position, and the second rib is formed by connecting the connecting lever to the bottom dead center position and the top dead center position. It forms along the line which connects a connection part and a connection part when it is located in the center position between. Therefore, for example, an external force or a load acting on the output shaft acts on the input side rotating member from the output rotating member via the connecting lever, but the direction of the thrust acting on the connecting lever is within the thrust acting range. The external force and load received by the support portion that supports the support shaft of the input side rotating member are received by effectively acting as stress on the first rib and the second rib formed around it.

  Thus, according to the motor device of the first aspect, stress can be effectively applied to the first rib and the second rib. Thereby, since the material which forms a housing can be reduced efficiently by reducing an excess rib, the weight reduction of a housing can be achieved.

  A motor device according to a second aspect is the motor device according to the first aspect, wherein the ribs formed by being connected to the periphery of the support portion are only the first rib and the second rib. is there.

  According to this motor device, since the ribs formed by being connected to the periphery of the support portion are only the first rib and the second rib, the housing is supported while the input side rotation member is firmly supported by the support portion. It is possible to further reduce the weight of the housing by omitting the rib formation at a position not corresponding to the thrust acting range of the connecting lever.

  A motor device according to a third aspect is the motor device according to the first or second aspect, wherein the reinforcing portion formed of the first rib and the second rib is supported by the support shaft as viewed in the axial direction. It is provided on both sides of the part.

  According to this motor apparatus, the reinforcement part which consists of a 1st rib and a 2nd rib is provided in the both sides which pinched | interposed the support part by the axial direction view of the support shaft. Therefore, it is possible to efficiently reinforce the support portion while reducing extra ribs.

It is a bottom view of the motor device concerning a first embodiment of the present invention. It is a top view of the housing shown by FIG. It is a 1st explanatory view explaining operation of the transmission mechanism shown in FIG. FIG. 6 is a second explanatory diagram for explaining the operation of the transmission mechanism shown in FIG. 1. It is a 1st explanatory view explaining the transmission mechanism in the second embodiment of the present invention, and its operation. FIG. 6 is a second explanatory view for explaining the operation of the transmission mechanism shown in FIG. 5.

[First embodiment]
First, a first embodiment of the present invention will be described.

  As shown in FIG. 1, the motor device 10 according to the first embodiment of the present invention includes a motor body 12, a transmission mechanism 14, and a housing 16.

  As an example, the motor body 12 is constituted by a brushed DC motor. The motor body 12 includes an armature 18 and a motor yoke 20. The armature 18 is rotatably accommodated in a motor yoke 20, and the motor yoke 20 is fixed to a housing 16 described later. The armature 18 has a rotating shaft 22, and a distal end portion 22 </ b> A of the rotating shaft 22 is inserted into the housing 16.

  The transmission mechanism 14 includes a worm 24, a worm wheel 26 as an input side rotation member, a pinion gear 28 as an output side rotation member, a connection lever 30, and a holding lever 32. The worm 24 is formed at the tip 22 </ b> A of the rotating shaft 22. The worm wheel 26 is engaged with the worm 24 and is rotatably supported by the housing 16 by a support shaft 34. More specifically, the support shaft 34 is rotatably inserted into a shaft hole of a support portion 52 (see FIG. 2) formed in the housing 16 as will be described later. The worm wheel 26 is connected to the support shaft 34. Rotates integrally.

  The pinion gear 28 is disposed coaxially with the output shaft 36 and is fixed to the base end portion of the output shaft 36. The distal end portion of the output shaft 36 passes through the housing 16 and protrudes outside the housing 16. A driving object is fixed to the tip of the output shaft 36. For example, when the motor device 10 is used as a wiper motor, the drive object is a wiper.

  A plurality of tooth portions 38 are formed on the outer peripheral portion of the pinion gear 28 (that is, a position eccentric from the output shaft 36 in the pinion gear 28). One end of the connecting lever 30 is rotatably connected by a connecting shaft 40 to a position eccentric from the support shaft 34 in the worm wheel 26. On the other hand, a sector gear 42 is formed on the other end side of the connecting lever 30.

  The sector gear 42 has a plurality of teeth 44 that mesh with a plurality of teeth 38 formed on the pinion gear 28. One end of the holding lever 32 is rotatably connected to the output shaft 36, and the other end of the holding lever 32 is rotatably connected to the rotation center portion of the sector gear 42 by the connecting shaft 46, and the tooth portion of the pinion gear 28. The distance between the shafts is maintained so as to maintain the meshing state between the teeth 38 of the sector gear 42 and the teeth 44 of the sector gear 42.

  The housing 16 accommodates the worm 24, the worm wheel 26, the pinion gear 28, the coupling lever 30, and the holding lever 32 described above. The opening 48 of the housing 16 is closed by a cover plate (not shown).

  In the motor device 10, when the rotary shaft 22 rotates integrally with the armature 18, the rotational force of the rotary shaft 22 is transmitted to the worm wheel 26 via the worm 24, and the worm wheel 26 moves in one direction (the direction of the arrow R). ). When the worm wheel 26 rotates in one direction, the connecting lever 30 reciprocates between the top dead center position and the bottom dead center position (see FIGS. 3 and 4).

  The top dead center position of the connecting lever 30 is a line L0 connecting the meshing portion 54 of the pinion gear 28 and the sector gear 42 and the support shaft 34 that supports the worm wheel 26, as shown in the upper diagram of FIG. It is a movement position of the connection lever 30 when the connection shaft 40 which connects the worm wheel 26 and the connection lever 30 is located above. The meshing portion 54 of the pinion gear 28 and the sector gear 42 corresponds to the connection portion of the output side rotating member and the connecting lever, and the connecting shaft 40 corresponds to the connecting portion of the input side rotating member and the connecting lever.

  On the other hand, the bottom dead center position of the connecting lever 30 is a line L0 connecting the meshing portion 54 of the pinion gear 28 and the sector gear 42 and the support shaft 34 that supports the worm wheel 26, as shown in the upper diagram of FIG. This is the moving position of the connecting lever 30 when the connecting shaft 40 that connects the worm wheel 26 and the connecting lever 30 is located on the extension of the worm wheel 26. More specifically, the line L0 is a line connecting the meshing portion 54 and the center portion of the support shaft 34, and the center portion of the connecting shaft 40 is positioned on the line L0 and its extension.

  When the connecting lever 30 reciprocates between the top dead center position and the bottom dead center position in this way, the sector gear 42 formed on the other end side of the connecting lever 30 swings and meshes with the sector gear 42. The output shaft 36 is reciprocally rotated together with the pinion gear 28.

  Further, as shown in FIG. 2, a cylindrical support portion 52 that supports the above-described support shaft 34 is formed in the above-described housing 16. The housing 16 is formed with a pair of first ribs 56 and a pair of second ribs 58. The pair of first ribs 56 and the pair of second ribs 58 are both connected to the support portion 52 and extend from the support portion 52 toward the radially outer side of the support shaft 34.

  Here, as described above, when the coupling lever 30 is located at the center position between the top dead center position and the bottom dead center position (see the lower diagram in FIG. 3), the meshing portion 54 and the coupling shaft 40 are connected. The connecting line is defined as a first virtual line L1. In addition, a line connecting the meshing portion 54 and the connecting shaft 40 when the connecting lever 30 is located at the center position between the bottom dead center position and the top dead center position (see the lower diagram in FIG. 4) Let it be line L2. In this case, the pair of first ribs 56 (see FIG. 2) extends linearly along the first virtual line L1, and the pair of second ribs 58 (see FIG. 2) , Extending linearly along the second imaginary line L2. More specifically, the first imaginary line L1 and the second imaginary line L2 are lines connecting the meshing portion 54 and the central portion of the connecting shaft 40.

  Further, as shown in FIG. 2, no ribs other than the pair of first ribs 56 and the pair of second ribs 58 are formed around the support portion 52, but formed around the support portion 52. Only the pair of first ribs 56 and the pair of second ribs 58 described above are included. Further, the first rib 56 and the second rib 58 are provided in pairs, and the reinforcing portion 60 composed of the first rib 56 and the second rib 58 sandwiches the support portion 52 as viewed in the axial direction of the support shaft 34. It is provided on both sides.

  The first rib 56 is preferably parallel to the first virtual line L1 (see the lower diagram in FIG. 3), but may not be completely parallel to the first virtual line L1. Similarly, the second rib 58 is preferably parallel to the second imaginary line L2 (see the lower diagram of FIG. 4), but may not be completely parallel to the second imaginary line L2.

  Next, the operation and effect of the first embodiment of the present invention will be described.

  As shown in FIG. 3, when the connecting lever 30 moves from the top dead center position to the bottom dead center position, the connecting lever 30 includes a meshing portion 54 of the pinion gear 28 and the sector gear 42, the worm wheel 26, and the connecting lever 30. A thrust (tensile direction) F1 acts along the direction connecting the connecting shaft 40 that connects the lever 30. The operating angle of the thrust F1 in the tensile direction with respect to the line L0 is maximized when the connecting lever 30 is located at the center position between the top dead center position and the bottom dead center position (see the lower diagram in FIG. 3). ). On the other hand, as shown in FIG. 4, when the connecting lever 30 moves from the bottom dead center position to the top dead center position, the connecting lever 30 is thrust along the direction connecting the meshing portion 54 and the connecting shaft 40. (Pushing direction) F2 acts. The operating angle of the thrust F2 in the pushing direction with respect to the line L0 becomes maximum when the connecting lever 30 is located at the center position between the bottom dead center position and the top dead center position (see the lower diagram of FIG. 4). ). That is, the direction of action of each of the thrusts F1 and F2 via the connecting lever 30 is two lines connecting the meshing portion 54 and the connecting shaft 40 at both center positions between the top dead center position and the bottom dead center position. The thrust acting range A is between (see FIG. 1).

  Here, as described above, the first rib 56 (see FIG. 2) is connected to the meshing portion 54 when the connecting lever 30 is located at the center position between the top dead center position and the bottom dead center position. The second rib 58 (see FIG. 2) is formed on the housing 16 along a first imaginary line L1 (see the lower diagram in FIG. 3) connecting the shaft 40. Is formed in the housing 16 along a second imaginary line L2 (see the lower diagram of FIG. 4) connecting the meshing portion 54 and the connecting shaft 40 when located at the center position between the first and second shafts. Therefore, for example, when snow falls on the wiper that is the driving target of the motor device 10 and an external force or load acts on the output shaft 36, the pinion gear 28 is transmitted to the worm wheel 26 via the connecting lever 30, Since the acting direction of the thrusts F1 and F2 via the lever 30 is within the thrust acting range A, the external force and load received by the support portion 52 that supports the support shaft 34 of the worm wheel 26 are the surroundings as stress. The first rib 56 and the second rib 58 formed on the first rib 56 and the second rib 58 are effectively acted on.

  Thus, according to the motor apparatus 10 which concerns on 1st embodiment of this invention, stress can be made to act on the 1st rib 56 and the 2nd rib 58 effectively. Thereby, since the material which forms the housing 16 can be reduced efficiently by reducing an excess rib, the weight reduction of the housing 16 can be achieved.

  Moreover, as shown in FIG. 2, the ribs formed by being connected to the periphery of the support portion 52 are only the pair of first ribs 56 and the pair of second ribs 58, so that the worm wheel 26 is supported by the support portion 52. However, it is possible to further reduce the weight of the housing 16 by omitting rib formation at a position that does not correspond to the thrust acting range A of the connecting lever 30 of the housing 16 (see FIG. 1).

  Further, the reinforcing portions 60 including the first ribs 56 and the second ribs 58 are provided on both sides of the support portion 52 as viewed in the axial direction of the support shaft 34. Therefore, it is possible to efficiently reinforce the support portion 52 while reducing extra ribs.

  Next, a modification of the first embodiment of the present invention will be described.

  In the first embodiment of the present invention, the motor device 10 is a wiper motor for swinging the wiper as an example, but may be used for other purposes.

  The motor body 12 is a DC motor with a brush, but may be another motor such as a brushless motor.

  Further, the worm wheel 26 is used as the input side rotation member, but other members may be used as long as the rotation force of the rotation shaft 22 of the motor body 12 is transmitted and the member rotates.

  Further, the ribs formed around the support portion 52 are only the pair of first ribs 56 and the pair of second ribs 58, but other than the pair of first ribs 56 and the pair of second ribs 58. In addition, a rib extending from the support portion 52 toward the radially outer side of the support shaft 34 in the thrust action range A may be formed. In particular, it is preferable that the additional rib is formed along the line L0 at the top and bottom dead center position. Thereby, for example, when an excessive external force acts around the output shaft 36 at the wiper stop position, the support shaft 34 is supported by the support portion 52 even if the thrust acts on the worm wheel 26 via the connecting lever 30. However, the stress can be received firmly.

  Note that it is preferable that the thrust action range A, that is, the angle formed by the pair of first ribs 56 and the pair of second ribs 58 corresponding to the thrust action range A is an acute angle.

  In addition, the reinforcing portions 60 including the first ribs 56 and the second ribs 58 are provided on both sides of the support portion 52 as viewed in the axial direction of the support shaft 34, but the first ribs 56 and the second ribs 58 are provided. The reinforcing portion 60 may be provided only on one side of the support portion 52 as viewed in the axial direction of the support shaft 34.

  The support shaft 34 is rotatably supported by the support portion 52, and the worm wheel 26 is fixed to the support shaft 34. However, the support shaft 34 is fixed to the support portion 52, and the worm wheel 26 is The support shaft 34 may be rotatably supported.

  The plurality of modified examples can be implemented in combination.

[Second Embodiment]
Next, a second embodiment of the present invention will be described.

  In the second embodiment shown in FIGS. 5 and 6, the configuration is changed as follows with respect to the first embodiment described above. That is, in the second embodiment, the transmission mechanism 114 is used instead of the transmission mechanism 14 described above.

  The transmission mechanism 114 includes a worm 124, a worm wheel 126 as an input side rotating member, a swing lever 128 as an output side rotating member, and a connecting lever 130. The worm 124, the worm wheel 126, and the support shaft 134 are the same as the worm 24, the worm wheel 26, and the support shaft 34 (see FIG. 1) in the first embodiment described above.

  One end of the swing lever 128 is fixed to the output shaft 36. The swing lever 128 swings around the output shaft 36. One end of the connecting lever 130 is rotatably connected to a position eccentric from the support shaft 134 in the worm wheel 126 by the connecting shaft 140, and the other end of the connecting lever 130 is the other end of the swing lever 128 (that is, A position that is eccentric from the output shaft 36 of the swing lever 128 is rotatably connected by a connecting shaft 154.

  In the transmission mechanism 114, when the rotating shaft 22 rotates, the rotational force of the rotating shaft 22 is transmitted to the worm wheel 126 through the worm 124, and the worm wheel 126 rotates in one direction (arrow R direction). When the worm wheel 126 rotates in one direction, the connecting lever 130 reciprocates between the top dead center position and the bottom dead center position (see FIGS. 5 and 6).

  The top dead center position of the connecting lever 130 is, as shown in the upper diagram of FIG. 5, a connecting shaft 154 that connects the swing lever 128 and the connecting lever 130, and a support shaft 134 that supports the worm wheel 126. This is the movement position of the connecting lever 130 when the connecting shaft 140 that connects the worm wheel 126 and the connecting lever 130 is located on the line L10 connecting the two. The connecting shaft 154 that connects the swing lever 128 and the connecting lever 130 corresponds to a connecting portion between the output side rotating member and the connecting lever, and the connecting shaft 140 corresponds to a connecting portion between the input side rotating member and the connecting lever.

  On the other hand, the bottom dead center position of the connecting lever 130 is the connecting shaft 154 that connects the swing lever 128 and the connecting lever 130, and the support shaft 134 that supports the worm wheel 126, as shown in the upper diagram of FIG. This is the moving position of the connecting lever 130 when the connecting shaft 140 connecting the worm wheel 126 and the connecting lever 130 is positioned on the extension of the line L10 connecting the two. More specifically, the line L10 is a line connecting the central portion of the connecting shaft 154 and the central portion of the support shaft 134, and the central portion of the connecting shaft 140 is located on the line L10 and its extension. Is done.

  When the connecting lever 130 reciprocates between the top dead center position and the bottom dead center position in this way, the swing lever 128 swings, and the output shaft 36 fixed to one end of the swing lever 128 is moved. It is reciprocated.

  Further, the above-described housing 16 is formed with a support portion 152 similar to the support portion 52 (see FIG. 2) in the first embodiment described above. A pair of first ribs 156 and a pair of second ribs 158 extending from the support portion 152 toward the radially outer side of the support shaft 134 are formed around the support portion 152 in the housing 16. The pair of first ribs 156 and the pair of second ribs 158 are both connected to the support portion 52 and extend from the support portion 52 toward the outside in the radial direction of the support shaft 134.

  Here, as described above, the connecting shaft 154 and the connecting shaft 140 when the connecting lever 130 is located at the center position between the top dead center position and the bottom dead center position (see the lower diagram in FIG. 5) are connected to each other. The connecting line is defined as a first virtual line L11. In addition, a line connecting the connecting shaft 154 and the connecting shaft 140 when the connecting lever 130 is positioned at the center position between the bottom dead center position and the top dead center position (see the lower diagram in FIG. 6) is represented by the second imaginary line. The line is L12. In this case, the pair of first ribs 156 described above extends linearly along the first imaginary line L11, and the pair of second ribs 158 described above linearly extends along the second imaginary line L12. It extends in a shape. More specifically, the first imaginary line L11 and the second imaginary line L12 are lines connecting the central portion of the connecting shaft 154 and the central portion of the connecting shaft 140.

  Further, no ribs other than the pair of first ribs 156 and the pair of second ribs 158 are formed around the support portion 152, and the ribs formed around the support portion 152 are the above-described pair of ribs. Only the first rib 156 and the pair of second ribs 158 are provided. Furthermore, the first rib 156 and the second rib 158 are provided in pairs, and the reinforcing portion 160 including the first rib 156 and the second rib 158 sandwiches the support portion 152 in the axial direction of the support shaft 134. It is provided on both sides.

  Next, the operation and effect of the second embodiment of the present invention will be described.

  As shown in FIG. 5, when the connecting lever 130 moves from the top dead center position to the bottom dead center position, the connecting lever 130 includes a swing lever 128 and a connecting shaft 154 for connecting the connecting lever 130, a worm. A thrust (tensile direction) F1 acts along the direction connecting the wheel 126 and the connecting shaft 140 that connects the connecting lever 130. The operating angle of the thrust F1 in the tensile direction with respect to the line L10 is maximized when the connecting lever 130 is located at the center position between the top dead center position and the bottom dead center position (see the lower diagram in FIG. 5). ). On the other hand, as shown in FIG. 6, when the connecting lever 130 moves from the bottom dead center position to the top dead center position, the connecting lever 130 is thrust along the direction connecting the connecting shaft 154 and the connecting shaft 140. (Pushing direction) F2 acts. The operating angle of the thrust F2 in the pushing direction with respect to the line L10 is maximized when the connecting lever 130 is located at the center position between the bottom dead center position and the top dead center position (see the lower diagram in FIG. 6). ). That is, the direction of action of each of the thrusts F1 and F2 via the connecting lever 130 is two lines connecting the connecting shaft 154 and the connecting shaft 140 at each of the center positions between the top dead center position and the bottom dead center position. The thrust acting range A is between (see FIG. 1).

  Here, as described above, the first rib 156 connects the connecting shaft 154 and the connecting shaft 140 when the connecting lever 130 is located at the center position between the top dead center position and the bottom dead center position. The second rib 158 is formed in the housing 16 along the first imaginary line L11. The second rib 158 is connected to the connecting shaft 154 when the connecting lever 130 is located at the center position between the bottom dead center position and the top dead center position. It is formed in the housing 16 along a second imaginary line L2 connecting the connecting shaft 140. Therefore, for example, as in the first embodiment, when the snow falls on the wiper and an external force or load is applied to the output shaft 36, it is transmitted from the swing lever 128 to the worm wheel 126 via the connecting lever 130. Since the acting direction of the thrusts F1 and F2 via the lever 130 is within the thrust acting range A, the external force or load received by the support portion 152 that supports the support shaft 134 of the worm wheel 126 is the surroundings as stress. The first ribs 156 and the second ribs 158 formed in the above are effectively acted on and received.

  As described above, also in the second embodiment of the present invention, stress can be effectively applied to the first rib 156 and the second rib 158. Thereby, since the material which forms the housing 16 can be reduced efficiently by reducing an excess rib, the weight reduction of the housing 16 can be achieved.

  Moreover, since the ribs formed by being connected to the periphery of the support portion 152 are only the pair of first ribs 156 and the pair of second ribs 158, the worm wheel 126 is supported firmly by the support portion 152. Further, it is possible to further reduce the weight of the housing 16 by omitting rib formation at a position not corresponding to the thrust acting range A (see FIG. 1) of the connecting lever 130 of the housing 16.

  In addition, the reinforcing portions 160 including the first rib 156 and the second rib 158 are provided on both sides of the support portion 152 when viewed in the axial direction of the support shaft 134. Therefore, it is possible to efficiently reinforce the support portion 152 while reducing extra ribs.

  In the second embodiment of the present invention, a modification similar to that of the first embodiment described above can be employed.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and it is needless to say that various modifications can be made without departing from the spirit of the present invention. is there.

  In addition to the inventions described in the claims below, technical ideas that can be grasped from the above embodiment will be described below.

The output side rotating member is a pinion gear arranged coaxially with the output shaft,
The connecting lever has a sector gear meshed with the pinion gear,
The connection part of the output side rotation member and the connecting lever is a meshing part of the pinion gear and the sector gear.
The motor apparatus as described in any one of Claims 1-3.

The output side rotating member is a swing lever that swings about the output shaft,
The connection part of the output side rotation member and the connection lever is a connection shaft that connects the swing lever and the connection lever.
The motor apparatus as described in any one of Claims 1-3.

DESCRIPTION OF SYMBOLS 10 ... Motor apparatus, 12 ... Motor main body, 14, 114 ... Transmission mechanism, 16 ... Housing, 18 ... Armature, 20 ... Motor yoke, 22 ... Rotating shaft, 24 , 124 ... Worm, 26, 126 ... Worm wheel (input side rotating member), 28 ... Pinion gear (output side rotating member), 30, 130 ... Connection lever, 32 ... Holding lever , 34, 134 ... support shaft, 36 ... output shaft, 38, 44 ... tooth portion, 40, 140 ... connection shaft (connection portion), 42 ... sector gear, 46 ... connection Shaft, 48 ... opening, 52, 152 ... support, 54 ... meshing part (connection part), 56, 156 ... first rib, 58, 158 ... second rib, 60 , 160 ... reinforcing part, 128 ... swing lever (output side rotating part) ), 154 ... connection shaft (connecting portion), L1, L11 ... first virtual line, L2, L12 ... second imaginary line

Claims (3)

A motor body having a rotating shaft;
An input-side rotating member that is rotatably supported by a support shaft and that is rotated by transmission of the rotational force of the rotating shaft;
An output side rotating member fixed to the output shaft;
One end is connected to a position eccentric from the support shaft in the input side rotating member, and the other end is connected to a position eccentric from the output shaft in the output side rotating member. A connecting lever that reciprocally moves between the top dead center position and the bottom dead center position along with rotation in the direction to reciprocately rotate the output side rotation member;
A support portion for supporting the support shaft, a housing for accommodating the input side rotation member, the output side rotation member, and the connection lever;
Formed in the housing and extending radially outward of the support shaft from the support portion, and the connecting lever is positioned at a central position between the top dead center position and the bottom dead center position. A first rib extending along a line connecting the connecting portion of the output side rotating member and the connecting lever and the connecting portion of the input side rotating member and the connecting lever,
The housing is formed in the housing, extends from the support portion toward the radially outer side of the support shaft, and the connecting lever is positioned at a center position between the bottom dead center position and the top dead center position. A second rib extending along a line connecting the connecting portion and the connecting portion when
A motor device comprising: The ribs formed to be connected to the periphery of the support portion are only the first rib and the second rib.
The motor device according to claim 1. Reinforcing portions composed of the first rib and the second rib are provided on both sides of the support portion as viewed in the axial direction of the support shaft.
The motor device according to claim 1 or 2.

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