JP2001346355A - Motor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motor which can avoid the water penetration into the yoke housing, the gear housing, the feed terminals and the feed unit. SOLUTION: A yoke housing 4 has an opening and supports a rotary shaft 6 which is driven to rotate. A gear housing 21 has an opening recess 21a facing the opening of the yoke housing 4 and supports a worm shaft 23 which is connected to the rotary shaft 6 via a clutch 30 for driving. A brush holder 9 has a holder main part 9a, which holds brushes 10 and is provided between the yoke housing 4 and the gear housing 21, and a feed unit 9c which holds feed terminals 14 for feeding the brushes 10 and is molded in one-piece. The parts of the brush holder 9 which are brought into contact with the opening of the yoke housing 4 and the opening recess 21a of the gear housing 21 and the base ends of the feed terminals 14 are made from one continuous sealing member 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor provided with a brush holder having an integral power supply.

[0002]

2. Description of the Related Art Conventionally, as a motor provided with a brush holder in which a power supply section (connector section) is integrated, for example, a motor described in US Pat. No. 5,485,044 is known. The brush holder provided in this motor is interposed between a yoke housing (armature housing) and a gear housing. When a current is supplied from the external power supply to the power supply unit, the current is supplied to the coil conductor wound around the armature via the brush and the commutator, and the rotating shaft of the armature is driven to rotate. The rotation of the rotating shaft is transmitted to the worm wheel (gear) via the worm shaft.

[0003] The brush holder is provided with seal members corresponding to respective contact portions with the yoke housing and the gear housing. Therefore, the sealing member prevents water from entering the yoke housing or the gear housing.

[0004]

By the way, in this motor, no consideration has been given to waterproofing treatment for the power supply section in accordance with the above. Since the power supply section is generally formed by insert molding holding the power supply terminal, the base end of the power supply terminal is exposed to the outside by a trace for holding the power supply terminal. ing. Then, when water is immersed in the power supply terminal or the power supply unit from the base end of the power supply terminal exposed to the outside, for example, a short circuit between the power supply terminals may occur.

An object of the present invention is to provide a motor capable of preventing water from entering into the inside of the yoke housing and the gear housing, the inside of the power supply terminal and the inside of the power supply section.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an invention according to claim 1 has a yoke housing having an opening and supporting a rotating shaft that is driven to rotate, and a yoke housing for the yoke housing. A gear housing having an opening opposed to the opening and supporting the rotating shaft, a holder body holding a brush and interposed between the yoke housing and the gear housing, and supplying power to the brush A motor having a brush holder integrally formed with a power supply unit for holding a terminal, wherein a contact portion of the brush holder with an opening of the yoke housing and an opening of the gear housing; The proximal end is
The gist of the invention is that it is formed by a continuous seal member.

[0007] The invention according to claim 2 has an opening,
A yoke housing that supports a rotating shaft that is driven to rotate,
A gear housing having an opening facing the opening of the yoke housing and supporting the rotating shaft, a holder body holding a brush and interposed between the yoke housing and the gear housing, and the brush A brush holder integrally formed with a power supply unit that holds a power supply terminal that supplies power to the motor, and a contact portion between the opening of the yoke housing and the opening of the gear housing in the brush holder; and The gist is that the base end side of the power supply terminal is formed of a seal member of the same material.

[0008] The invention according to claim 3 is the invention according to claim 1 or 2.
In the motor described in (1), the gist is that the brush holder is formed by two-color molding of a resin outer portion forming a base having an external shape of the brush holder and the seal member.

According to a fourth aspect of the present invention, in the motor according to any one of the first to third aspects, the external portion forming the external shape base of the brush holder is provided at a predetermined portion of the holder main body. The gist of the present invention includes a main body side buried portion formed and buried in the seal member, and a power supply portion side buried portion formed in a predetermined portion of the power supply portion and buried in the seal member.

According to a fifth aspect of the present invention, in the motor according to the fourth aspect, the buried portion is formed with an engagement portion that engages with a predetermined portion thereof in a direction in which the seal member comes off. Is the gist.

According to a sixth aspect of the present invention, in the motor according to any one of the first to fifth aspects, the seal member is formed of any one of rubber, an elastomer, and a viscous resin. That is the gist.

The invention according to claim 7 has an opening,
A yoke housing that supports a rotating shaft that is driven to rotate,
A gear housing having an opening facing the opening of the yoke housing and supporting the rotating shaft, a holder body holding a brush and interposed between the yoke housing and the gear housing, and the brush A brush holder integrally formed with a power supply unit that holds a power supply terminal that supplies power to the motor, and a contact portion between the opening of the yoke housing and the opening of the gear housing in the brush holder; and The gist is that a seal member is provided for each base end of the power supply terminal.

(Operation) According to the first aspect of the present invention,
A contact portion between the opening of the yoke housing and the opening of the gear housing in the brush holder and a base end side of the power supply terminal are formed by a continuous sealing member. Therefore, by the seal member of the brush holder,
Water from entering the inside of the yoke housing, the inside of the gear housing, and the inside of the power supply terminal and the power supply section from the base end of the power supply terminal is prevented.

According to the second aspect of the present invention, a seal member made of the same material is used for the brush holder and the contact portion between the opening of the yoke housing and the opening of the gear housing and the base end of the power supply terminal. It is molded by. Therefore, the sealing member prevents water from entering the inside of the yoke housing, the inside of the gear housing, and the inside of the power supply terminal and the power supply section from the base end of the power supply terminal.

According to the third aspect of the present invention, the sealing member is formed tightly with respect to the outer shape, and the sealing property is improved. In addition, the number of parts and the number of assembling steps are reduced by integrating the brush holder including the outer portion and the seal member by two-color molding.

According to the fourth aspect of the present invention, the external portions forming the externally shaped base of the brush holder are provided with embedded portions at predetermined portions of the holder main body and at predetermined portions of the power supply portion, respectively. Since the seal member is embedded in the seal member, it is difficult for the seal member to come off from the outer portion. In addition, by making it difficult for the seal member to come off from the outer shape portion in the power supply unit, it is possible to reliably prevent water from flowing from the base end of the power supply terminal into the power supply terminal or the power supply unit.

According to the fifth aspect of the present invention, since the engaging portion provided at a predetermined portion of the buried portion engages in the direction in which the seal member comes off, the seal member is less likely to come off the outer shape portion.

According to the sixth aspect of the present invention, the brush holder is provided between the yoke housing and the gear housing via a sealing member made of rubber, elastomer or viscous resin. As a result, noise is reduced.

According to the seventh aspect of the present invention, seal members are provided for the brush holder in contact with the opening of the yoke housing and the opening of the gear housing, and the base end of the power supply terminal. Is provided.
Therefore, the above-described seal members prevent water from entering the inside of the yoke housing, the inside of the gear housing, and the inside of the power supply terminal and the power supply section from the base end of the power supply terminal.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, the motor 1 has a motor main body 2 and a speed reduction section 3. The motor body 2
Is a yoke housing 4, a plurality of magnets 5, a rotating shaft 6, an armature (armature) 7, a commutator (commutator)
8, a brush holder 9 and a brush 10 are provided.

The yoke housing 4 is formed in a substantially bottomed flat cylindrical shape. Then, two magnets 5 are fixed to the inner peripheral surface in an opposed arrangement. The base of the rotating shaft 6 is rotatably supported on the bottom of the yoke housing 4 along the center axis thereof.

The armature 7 is fixed to an intermediate portion of the rotating shaft 6 corresponding to the position of the magnet 5. Further, a commutator 8 is fixed to the rotation shaft 6 at a more distal end side than the armature 7.

An outwardly extending flange portion 4a is formed in the opening of the yoke housing 4, and through holes 4b and 4c are formed on one side and the other side (left and right sides in FIG. 1) of the flange portion 4a. Is formed.

A brush holder 9 is fitted and fixed to the opening of the yoke housing 4. This brush holder 9
A holder main body 9a having a shape corresponding to the opening of the yoke housing 4 so as to substantially cover the peripheral edge of the opening and abutting therewith; and a power supply unit disposed outside the yoke housing 4 in the radial direction of the holder main body 9a. 9b and a connecting portion 9c extending along the flange portion 4a and connecting the holder main body 9a and the power supply portion 9b are integrally formed.

The yoke housing 4 of the holder body 9a
On the inner side, a pair of brushes 10 connected to the power supply unit 9b by wiring (not shown) are provided. This brush 10
It is arranged at a position corresponding to the commutator 8 and is in contact with the commutator 8. Therefore, when a current is supplied from an external power supply to the power supply unit 9b, a current is supplied to the coil conductor wound around the armature 7 via the brush 10 and the commutator 8, and the armature 7, that is, the rotating shaft of the motor body 2 is rotated. 6 is driven to rotate. The holder body 9
A bearing 11 is provided at substantially the center of a, and the distal end side of the rotating shaft 6 is rotatably supported by the bearing 11.

A pair of first engaging projections 12 and 13 are provided on the side of the speed reduction section 3 (lower side in FIG. 1) of the holder body 9a. The first engagement projections 12 and 13 extend in parallel with the rotation shaft 6. As shown in FIG. 2C, the first engagement protrusions 12 and 13 are formed in parallel with the insertion position of the rotating shaft 6 interposed therebetween.

On the other hand, the power supply section 9b is formed in a substantially bottomed box shape that opens on one side (the lower side in FIG. 1), and a plurality of (six) power supply terminals 14 protrude from the bottom. ing.
Here, the brush holder 9 includes the holder body 9a,
For example, a resin-made outer portion 16 that forms a base body having an external shape of the power supply portion 9b and the connecting portion 9c, and a seal member formed of, for example, rubber, an elastomer, or a viscous resin that covers the outer peripheral surface of the outer portion 16 17. The outer portion 16 and the seal member 17 are integrally formed by, for example, two-color molding.

As shown by a broken line in FIG. 2C, the outer portion 16 of the holder body 9a of the brush holder 9 is located at the outer periphery thereof, that is, between the openings of the yoke housing 4 and a gear housing 21 described later. A flange-like buried portion 16a is provided at the interposed portion. The outer portion 16 of the power supply portion 9b has a flange-like buried portion 16b on its outer peripheral portion.
It has. This buried portion 16b is
Are formed on substantially the same plane. Each of these buried parts 16
a and 16b have a plurality of notches 16 in the circumferential direction, respectively.
c and 16d are formed at substantially equal intervals. Each notch 16
c and 16d are cut inward from the outer peripheral edges of the buried portions 16a and 16b, and the outside (opening) is formed to be narrow.

On the other hand, the sealing member 17 is provided on the outer peripheral side of the holder main body 9a, that is, the main body side outer peripheral portion 17a covering the buried portion 16a so as to seal the openings of the yoke housing 4 and a gear housing 21 described later. The connecting portion 9c
A power supply side outer peripheral portion 17c that covers the buried portion 16b so as to reach the outer peripheral side of the power supply portion 9b, that is, a side opposite to the base end side of the power supply terminal 14, and a power supply terminal. 14 has a power supply side base end portion 17d that covers the base end side. The outer peripheral portion 17 of the sealing member 17 on the main body side
a, the covering portion 17b, the power supply side outer peripheral portion 17c, and the power supply side base end portion 17d are continuously and integrally formed. In this case, the outer peripheral portion 17a on the main body side and the outer peripheral portion 17c on the power supply side embed the embedded portions 16a and 16b and embed the embedded portions 16a and 16b.
Since the openings of the cutouts 16c and 16d provided in the cutout 16b are narrow, the sealing member 17 filled in the cutouts 16c and 16d is difficult to be pulled out and cannot be securely removed from the outer shape portion 16. It has become. This also gives
The power-supply-side base end 17d provided continuously with the power-supply-side outer peripheral portion 17c also does not come off the outer shape portion 16 without fail. In addition,
For example, the outer peripheral portion 17a and the cover portion 17b on the main body side and the outer peripheral portion 17c and the base end portion 17d on the power supply side may be formed discontinuously.

The brush holder 9 (the outer peripheral portion 17a on the main body side) is fitted and fixed in the opening of the yoke housing 4 so that the inside of the yoke housing 4 is waterproofed. In addition, the power supply side base end 17d covers the base end corresponding to the base end 14a of the power supply terminal 14, so that the inside of the power supply terminal 14 and the power supply portion 9b is waterproofed and the space between the power supply terminals 14 is reduced. Mutual insulation is achieved. Further, since the covering portion 17b covers the entire outer wall surface of the connecting portion 9c, accidental flooding or the like via the connecting portion 9c is prevented.

The reduction section 3 includes a gear housing 21 and
First and second bearings 22a and 22b and worm shaft 23
, A worm wheel 24, and an output shaft 25. The gear housing 21 is made of resin, and the upper end (upper end in FIG. 1) is fixed to the yoke housing 4 and the brush holder 9.

More specifically, an opening recess 21a is formed in the center of the upper end (upper end in FIG. 1) of the gear housing 21, and the first recess 21a is formed at the bottom of the opening recess 21a. A pair of second projections corresponding to the engagement projections 12 and 13 are provided.
Engagement projections 26 and 27 are provided. The second engagement projections 26 and 27 extend in parallel with the axial direction of the rotating shaft 6 corresponding to the first engagement projections 12 and 13. At the upper end of the gear housing 21, a fitting projection 21 c fitted into one through hole 4 b of the yoke housing 4 with the brush holder 9 interposed therebetween, and a fitting projection 21 c fitted into the other through hole 4 c of the yoke housing 4. 21d is formed. The gear housing 21 is provided with the first engagement projections 12 and 13.
And the second engaging projections 26 and 27 are engaged and guided to a predetermined assembling position, and are fitted into the through holes 4b and 4c.
c, 21d are inserted and fixed to the brush holder 9 and the yoke housing 4. At this time, the peripheral edge of the opening concave portion 21a of the gear housing 21 comes into contact with the outer peripheral portion 17a of the seal member 17 on the main body side. Thereby, the inside of the opening concave portion 21a (gear housing 21) of the gear housing 21 is waterproofed.

The gear housing 21 has an opening 2
1a, a clutch accommodating recess 21e recessed from the bottom center.
A worm shaft receiving recess 21f is formed so as to extend from the center of the bottom of the clutch receiving recess 21e along the axial direction of the rotary shaft 6. The gear housing 21 is formed with a wheel housing 21g that communicates with the worm shaft housing recess 21f in a direction perpendicular to the axis of the worm shaft housing recess 21f (rightward in FIG. 1).

The first and second bearings 22a and 22b are slide bearings having a substantially cylindrical shape, and are respectively fitted in one side and the other side (upper and lower sides in FIG. 1) of the worm shaft receiving recess 21f. I have.

The worm shaft 23 has a worm 23a formed at an intermediate portion thereof, and has first and second bearings 22 at both ends.
a and 22b rotatably supported and housed in the worm shaft housing recess 21f.

The worm wheel 24 includes a worm 23a
The wheel housing 21 is rotatable about an axis in a direction perpendicular to the worm shaft 23 (a direction perpendicular to the plane of FIG. 1).
g. The output shaft 25 is connected to the worm wheel 24 so as to rotate coaxially with the rotation of the worm wheel 24.

The rotating shaft 6 is connected to a worm shaft 23 via a clutch 30. This clutch 30
The rotation is transmitted from the rotation shaft 6 to the worm shaft 23 and the rotation transmission from the worm shaft 23 to the rotation shaft 6 is prevented.

In the motor 1 having the above-described structure, when a current is supplied from an external power supply to the power supply section 9b, the brush 10
An electric current is supplied to the coil conductor wound around the armature 7 via the commutator 8 and the rotating shaft 6 is driven to rotate. The rotation of the rotating shaft 6 is transmitted to the output shaft 25 via the clutch 30, the worm shaft 23, and the worm wheel 24. On the other hand, rotation from the output shaft 25 (load) is prevented from being transmitted to the rotation shaft 6 side in the clutch 30, and the reverse rotation is prevented.

As described in detail above, according to the present embodiment, the following effects can be obtained. (1) In the present embodiment, the holder body 9 of the brush holder 9
a and the opening of the yoke housing 4 and the gear housing 2
1 and a contact portion with the opening concave portion 21a, and the power supply terminal 1
The base end of 4 is formed by a continuous sealing member 17. Accordingly, the seal member 17 can prevent water from entering the inside of the yoke housing 4, the inside of the gear housing 21, and the inside of the power supply terminal 14 and the power supply portion 9b from the base end of the power supply terminal 14. In addition, mutual insulation between the power supply terminals 14 can be achieved. In particular, since the covering portion 17b is provided in the connecting portion 9c, the sealing performance as a whole can be improved.

(2) In this embodiment, the outer portion 16 and the seal member 17 of the brush holder 9 are formed by two-color molding. Therefore, the sealing member 17 can be formed tightly with respect to the outer shape portion 16 to improve the sealing performance. Further, since the brush holder 9 including the outer portion 16 and the seal member 17 is integrated by two-color molding, the number of parts and the number of assembling steps can be reduced.

(3) In the present embodiment, the embedded portions 16a and 16b provided in the outer shape portion 16 are embedded in the outer peripheral portion 17a on the main body side and the outer peripheral portion 17c on the power supply side of the seal member 17. Therefore, the outer peripheral portion 17a on the main body side and the outer peripheral portion 17c on the power supply side of the seal member 17 are hard to come off from the outer shape portion 16. Moreover, the notches 16c, 16 having narrow openings are formed in the buried portions 16a, 16b.
d, the seal members 17 filled in the notches 16c and 16d are engaged in a direction in which the seal members 17 come out,
It will be difficult to fall out. Therefore, the outer peripheral portion 17a on the main body side and the outer peripheral portion 17c on the power supply side of the seal member 17 can have a structure that is harder to come off from the outer peripheral portion 16. Also, the power supply side outer peripheral portion 17
Since c covers the embedded portion 16b so as to reach the side opposite to the base end side of the power supply terminal 14, even if stress is applied to the power supply side base end portion 17d, the power supply side outer peripheral portion 17c does not easily come off the embedded portion 16b. As a result, the power supply side base end portion 17d provided continuously with the power supply side outer peripheral portion 17c also does not come off from the outer shape portion 16 reliably, so that the base end side of the power supply terminal 14 can be reliably provided with a waterproof structure.

(4) In this embodiment, the brush holder 9
Through the seal member 17 made of rubber, elastomer or viscous resin.
Since it is provided between the motors, the vibration during the operation of the motor can be absorbed and noise can be reduced.

(5) In this embodiment, the brush holder 9 is provided with the first engaging projections 12 and 13, and the gear housing 21 is engaged with the first engaging projections 12 and 13 to engage the gear housing 21. Are provided with the second engaging projections 26 and 27 for guiding the to the predetermined assembly position. Therefore, the first engagement projections 12 and 13
The second engagement protrusions 26 and 27 are engaged with the gear housing 21 so that the gear housing 21 can be smoothly guided to the assembly position.

(6) In this embodiment, the clutch 30 is provided between the rotating shaft 6 and the worm shaft 23. Therefore, the rotation is transmitted from the rotating shaft 6 to the worm shaft 23 and the worm shaft 2
3 (load) to the rotation shaft 6 can be prevented from being transmitted.

The embodiment of the present invention is not limited to the above embodiment, but may be modified as follows. In the above embodiment, the rotating shaft 6 and the worm shaft 23
Although the clutch 30 is provided between the rotating shaft 6 and the worm shaft 23, the rotating shaft 6 and the worm shaft 23 may be directly connected. In this case, the rotating shaft 6 and the worm shaft 23 may be integrally formed.

The embedding portions 16a and 16b embedded in the seal member 17 are provided on the outer portion 16 serving as the base of the brush holder 9 in the above-described embodiment.
The shapes of a and 16b are not limited to these.
Notches 16c and 16c are provided as engaging portions for engaging the sealing members 17 in the embedded portions 16a and 16b.
Although d is formed, the present invention is not limited to this, and a hole, a protrusion, or the like penetrating the front and back of the buried portions 16a, 16b may be used. Further, the positions of the notches 16c and 16d are not limited to this. Further, the notches 16c and 16d may be omitted.

The seal member 17 of the brush holder 9 in the above embodiment may be formed of another material as long as it has a sealing property. In the embodiment, the outer portion 1 of the brush holder 9
Although the 6 and the seal member 17 are formed by two-color molding, for example, a structure in which a seal member is separately attached to the external portion 16 may be adopted.

In the above embodiment, the worm shaft receiving recess 21f is formed in the opening recess 21a of the gear housing 21, but the opening recess 21a itself may be formed as the worm shaft receiving recess 21f.

Next, technical ideas other than the claims that can be grasped from the above embodiment will be described below together with their effects. (A) In the motor according to any one of claims 1 to 7, the brush holder (9) is provided with a first engagement projection (12, 1).
3), wherein the gear housing (21) includes the first
The second engagement projection (2) engaged with the engagement projections (12, 13) to guide the gear housing (21) to the assembly position.
6, 27). According to this configuration, the gear housing is smoothly guided to the assembling position by the second engagement projection being engaged with the first engagement projection.

(B) The motor according to any one of (1) to (7) and (A), wherein the rotating shaft (6) is disposed between the rotating shaft (6) and the worm shaft (23). A motor provided with a clutch (30) for transmitting rotation to the worm shaft (23) and preventing transmission of rotation from the worm shaft (23) to the rotation shaft (6). According to the configuration, the rotation is transmitted from the rotation shaft to the worm shaft,
Rotation transmission from the worm shaft to the rotation shaft is prevented.

[0052]

As described above in detail, according to the first to seventh aspects of the present invention, it is possible to prevent water from entering the inside of the yoke housing and the gear housing, the inside of the power supply terminal and the inside of the power supply section.

According to the third aspect of the present invention, in addition to the above effects, the sealing member is formed tightly with respect to the outer shape,
The sealing property can be improved. In addition, by integrating the brush holder including the outer portion and the seal member by two-color molding, the number of components and the number of assembling steps can be reduced.

According to the fourth and fifth aspects of the present invention, in addition to the above-described effects, a structure can be provided in which the seal member is hard to come off from the outer shape. According to the sixth aspect of the invention, in addition to the above-described effects, it is possible to reduce vibration by absorbing vibration during the operation of the motor.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a rear view, a cross-sectional view, and a front view showing the brush holder of the embodiment.

[Explanation of symbols]

4 yoke housing, 6 rotating shaft, 9 brush holder, 9a holder body, 9b power supply unit, 10 brush
Reference numeral 14: power supply terminal, 14a: base end portion, 16: outer shape portion, 16
a: a buried portion as a main body side buried portion, 16b: a buried portion as a power supply portion side buried portion, 16c, 16d: a notch as an engagement portion, 17 ... a seal member, 21 ... a gear housing, 2
1a: Open recess as an opening.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Katsuhiko Torii 390 Umeda, Kosai-shi, Shizuoka Asmo Co., Ltd. F-term (reference) 5H605 AA02 BB09 CC03 CC06 CC07 DD03 DD05 DD09 DD36 EA01 EA19 EA23 EB02 EB31 EC15 GG04 GG06

Claims (7)

[Claims] 1. A yoke housing (4) having an opening and supporting a rotating shaft (6) driven to rotate, and an opening (21a) facing the opening of the yoke housing (4). A gear housing (21) for supporting the rotating shaft (6); and a yoke housing (4) holding a brush (10).
A brush in which a holder body (9a) interposed between the gear housing (21) and a power supply portion (9b) holding a power supply terminal (14) for supplying power to the brush (10) are integrally formed. A motor provided with a holder (9); a contact portion of the brush holder (9) with an opening of the yoke housing (4) and an opening (21a) of the gear housing (21); and the power supply terminal. (14)
The base end of the motor is formed by a continuous sealing member (17). 2. A yoke housing (4) having an opening and supporting a rotating shaft (6) driven to rotate, and an opening (21a) facing the opening of the yoke housing (4). A gear housing (21) for supporting the rotating shaft (6); and a yoke housing (4) holding a brush (10).
A brush in which a holder body (9a) interposed between the gear housing (21) and a power supply portion (9b) holding a power supply terminal (14) for supplying power to the brush (10) are integrally formed. A motor provided with a holder (9); a contact portion of the brush holder (9) with an opening of the yoke housing (4) and an opening (21a) of the gear housing (21); and the power supply terminal. (14)
The base end of the motor is formed of a seal member (17) of the same material. 3. The motor according to claim 1, wherein the brush holder (9) includes a resin outer portion (16) forming a base having an external shape of the brush holder (9), and the seal. A motor formed by two-color molding with a member (17). 4. The motor according to claim 1, wherein the outer portion (16) of the brush holder (9), which forms a base having an external shape, is provided on the holder body (9a). A main body side buried portion (16a) formed at a site and buried in the seal member (17); and a power supply portion side buried portion formed at a predetermined portion of the power supply portion (9b) and buried in the seal member (17). (16b) A motor comprising: 5. An engagement part (16c, 16d) according to claim 4, wherein said embedded part (16a, 16b) is engaged with a predetermined part thereof in a direction in which said seal member (17) comes out. A motor characterized in that a motor is formed. 6. The motor according to claim 1, wherein the seal member is formed of one of rubber, an elastomer, and a viscous resin. Motor to do. 7. A yoke housing (4) having an opening and supporting a rotating shaft (6) driven to rotate, and an opening (21a) facing the opening of the yoke housing (4). A gear housing (21) for supporting the rotating shaft (6); and a yoke housing (4) holding a brush (10).
A brush body integrally formed with a holder body (9a) interposed between the gear housing (21) and a power supply portion (9b) holding a power supply terminal (14) for supplying power to the brush (10). A motor provided with a holder (9); a contact portion of the brush holder (9) with an opening of the yoke housing (4) and an opening (21a) of the gear housing (21); and the power supply terminal. (14)
To the base end (14a) of the seal member (1).
7a, 17d).