JP2023119355A - Fixing structure for electric motor - Google Patents

Abstract

To increase work efficiency by reducing a load on an operator and to reduce cost by simplifying a structure.SOLUTION: A fixing clip 50 comprises: a support base 61 that supports one side of a mount rubber 40 in an axial direction; a clip body 60 having totally four claws 62 that extend from the support base 61 to the other side of the mount rubber 40 in the axial direction to be inserted into the mount rubber 40 and a vehicle body panel PN; and a pin member 70 inserted into the clip body 60 to push wide the four claws 62 outside the clip body 60 in a radial direction. The four claws 62 and the pin member 70 are provided with engaging projected part 62b and an annular recessed part 71b that are engaged with each other to restrict relative movements of both in the axial direction.SELECTED DRAWING: Figure 9

Description

The present invention relates to an electric motor fixing structure for fixing an electric motor to a fixed object.

2. Description of the Related Art Conventionally, a wiper device for wiping off rainwater, dust, etc. adhering to a window glass is mounted on the front and rear of a vehicle such as an automobile. The wiper device includes an electric motor as a drive source, and the electric motor is fixed to a vehicle body panel (fixed object) via a bracket. An electric motor that is fixed to a vehicle body panel via a bracket in this way is described in, for example, Japanese Unexamined Patent Application Publication No. 2002-200013.

The electric motor disclosed in Patent Document 1 is fixed to an inner panel (vehicle panel) via a bracket having a total of three mounting portions. Specifically, a mount rubber is attached to each mounting portion, and a bolt is inserted through each mount rubber. That is, a total of three brackets are fixed to the inner panel with bolts and nuts.

WO2006/095630

However, with the technique described in Patent Document 1, for example, when fixing an electric motor to a rear gate or a rear hatch that opens upward at the rear of a vehicle, a worker needs to operate an impact driver or the like while facing upward. there were. In particular, the impact driver is not only heavy, but also vibrates greatly, placing a heavy burden on the operator.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electric motor fixing structure that can reduce the burden on a worker, improve work efficiency, and simplify the structure to reduce costs.

According to one aspect of the present invention, there is provided an electric motor fixing structure for fixing an electric motor to an object to be fixed, comprising: a fixing leg provided on the electric motor; and a fixing clip inserted through the tubular elastic body and fixed to the fixing object, wherein the fixing clip is attached to the tubular elastic body. and a clip extending from the support base to the other side in the axial direction of the tubular elastic body and having a plurality of claws inserted through the tubular elastic body and the fixed object. and a pin member that is inserted into the clip body and spreads the plurality of claw portions radially outward of the clip body, wherein the plurality of claw portions and the pin member are engaged with each other in an uneven manner. A lock mechanism is provided to restrict relative movement of both in the axial direction.

According to the present invention, the electric motor can be fixed to the fixed object simply by inserting the pin member into the clip body without using an impact driver or the like. As a result, the fixing structure can be simplified as compared with the bolt-nut method, and the burden on the worker can be reduced to improve work efficiency. In addition, the locking mechanism provides a sense of operation when the fixation is completed, and can prevent the occurrence of fixation failures.

1 is a perspective view showing a wiper motor to which a fixing structure of the present invention is applied; FIG. It is a perspective view of a mount rubber. It is the perspective view which looked at the clip main body from the base end side. It is the perspective view which looked at the clip main body from the front end side. FIG. 4 is a cross-sectional view along the axial direction of the clip member; It is the perspective view which looked at the pin member from the base end side. It is the perspective view which looked at the pin member from the front end side. FIG. 4 is a cross-sectional view showing a fixing procedure 1 (free state) of a fixing clip; FIG. 10 is a cross-sectional view showing a fixing procedure 2 (locked state) of the fixing clip; It is a perspective view which shows the wiper motor fixed to the vehicle body panel.

An embodiment of the present invention will be described in detail below with reference to the drawings.

1 is a perspective view showing a wiper motor to which the fixing structure of the present invention is applied, FIG. 2 is a perspective view of the mount rubber, FIG. 3 is a perspective view of the clip body viewed from the base end side, and FIG. 4 is the clip body. 5 is a cross-sectional view along the axial direction of the clip member, FIG. 6 is a perspective view of the pin member viewed from the proximal side, and FIG. 7 is the pin member viewed from the distal side. 8 is a sectional view showing fixing procedure 1 (free state) of the fixing clip, FIG. 9 is a sectional view showing fixing procedure 2 (locked state) of the fixing clip, and FIG. 10 is fixed to the vehicle body panel. 3A and 3B respectively show a perspective view showing the wiper motor.

[Outline of wiper motor]
A wiper motor 10 shown in FIG. 1 is a drive source for a rear wiper device (not shown) mounted on a rear gate that opens upward at the rear of a vehicle such as a van. The wiper motor 10 corresponds to an electric motor in the present invention, and includes a motor section 20 and a gear section 30 .

The motor unit 20 has a motor case (yoke) 21 formed by pressing a steel plate or the like, and the motor case 21 accommodates a stator and a rotor (not shown). On the other hand, the gear portion 30 has a gear case 31 made by injection molding a molten aluminum material. A reduction mechanism (not shown) that transmits to 32 is housed.

Here, in the present embodiment, a worm speed reducer capable of obtaining a large speed reduction ratio is employed as the speed reduction mechanism. As a result, the wiper motor 10 can have a high output while being small.

A longitudinal base end (arm head) of a wiper member (not shown) that reciprocally wipes the surface of the window glass provided in the rear gate is fixed to the tip of the output shaft 32 (upper part in FIG. 1). As a result, the output shaft 32 swings by driving the wiper motor 10, and the wiper member performs a reciprocating wiping operation on the surface of the window glass. As a result, rainwater, dust, etc. adhering to the surface of the window glass are wiped clean, and the visibility to the rear of the vehicle is ensured.

The gear case 31 is formed with an opening (not shown) for incorporating parts such as a speed reduction mechanism inside the gear case 31 . The opening is provided on the side opposite to the protruding side of the output shaft 32 (back side of the paper surface of FIG. 1), and the opening is closed by a flat bracket member 33 formed by pressing a steel plate or the like. .

A total of three fixing legs 33 a are integrally provided around the bracket member 33 , and these fixing legs 33 a are distributed around the output shaft 32 . As a result, the wiper motor 10 provided with the fixed leg portion 33a can be fixed to the vehicle body panel PN (see FIGS. 8 to 10) provided inside the rear gate with good balance without rattling.

A total of three fixing legs 33a are provided with notch grooves 33b, respectively, as shown in FIGS. Mount rubbers 40 are inserted and fixed in the notch grooves 33b, respectively. Specifically, the cutout groove 33b opens in a direction intersecting with the axial direction of the output shaft 32 . Accordingly, the mount rubber 40 can be mounted in the notch groove 33b from a direction intersecting the axial direction of the output shaft 32. As shown in FIG.

[Mount rubber]
As shown in FIGS. 1, 2, 8 and 9, the mount rubber 40 is made of an elastic material such as rubber and has a substantially tubular shape with steps. The mount rubber 40 is provided between the wiper motor 10 (fixed leg portion 33a) and the vehicle body panel PN (vehicle body), and has a function of absorbing vibration transmitted between the vehicle body and the wiper motor 10 (anti-vibration function). are doing. The vehicle body panel PN corresponds to a fixed object in the present invention.

The mount rubber 40 corresponds to a cylindrical elastic body in the present invention, and connects the first rubber portion 41 and the second rubber portion 42 which are formed in a substantially disc shape, and the first and second rubber portions 41 and 42 . A connecting tube portion 43 is provided. Further, an insertion hole 44 through which the fixing clip 50 is inserted is provided in the central portion of the mount rubber 40 . Note that the insertion hole 44 has the same inner diameter dimension throughout the axial direction of the mount rubber 40 .

Both the first rubber portion 41 and the second rubber portion 42 are formed in the same shape. Specifically, it is formed in a shape that is mirror-symmetrical in the axial direction centering on the connecting tube portion 43 . 8 and 9, the connecting cylinder portion 43 of the mount rubber 40 is inserted into the notch groove 33b of the fixed leg portion 33a, thereby allowing the mount rubber 40 to move relative to the fixed leg portion 33a. Fits without rattling.

When the wiper motor 10 is fixed to the vehicle body panel PN, the first rubber portion 41 is arranged between the fixed leg portion 33a and the vehicle body panel PN. Compressed. On the other hand, in the state where the wiper motor 10 is fixed to the vehicle body panel PN, the second rubber portion 42 is arranged between the fixed leg portion 33a and the support base portion 61 of the clip body 60 to support the fixed leg portion 33a and the clip body 60. It is compressed when the base 61 approaches.

Here, as shown in FIG. 8, when the mount rubber 40 is in a natural state, that is, when no load is applied to the mount rubber 40, the thickness dimension of the first rubber portion 41 in the axial direction is T1. The thickness dimension in the axial direction of the two rubber portions 42 is T2. Note that the thickness dimension T1 and the thickness dimension T2 are substantially the same dimension (T1≈T2).

On the other hand, as shown in FIG. 9, when the wiper motor 10 is fixed to the vehicle body panel PN by the fixing clip 50, the mount rubber 40 is slightly compressed (elastically deformed) in its axial direction. An initial load is applied. Specifically, the thickness dimension in the axial direction of the first rubber portion 41 to which the initial load is applied is T3, which is smaller than T1 (T3<T1). In addition, the thickness dimension in the axial direction of the second rubber portion 42 to which the initial load is applied is T4, which is smaller than T2 (T4<T2).

When the wiper motor 10 is thus fixed to the vehicle body panel PN, the mount rubber 40 is in a state where a predetermined initial load is applied. Therefore, rattling of the wiper motor 10 with respect to the vehicle body panel PN is suppressed, and in turn, "vibration" of the wiper member with respect to the window glass is effectively suppressed. It should be noted that the mount rubber 40 is designed so as to exhibit a predetermined anti-vibration performance in a state where the initial load is applied as described above.

[fixed clip]
As shown in FIGS. 1, 8, 9 and 10, the wiper motor 10 is fixed to the vehicle body panel PN by a total of three fixing clips 50 via a total of three mounting rubbers 40. As shown in FIG. That is, each fixing clip 50 is fixed to the vehicle body panel PN, and in addition to the function of fixing the wiper motor 10 to the vehicle body panel PN, it has the function of compressing (pressing) the mount rubber 40 with a predetermined initial load. .

The securing clip 50 is formed from two parts. Specifically, the fixed clip 50 includes a clip body 60 (see FIGS. 3 to 5) made of a resin material such as plastic, and a pin member 70 (see FIGS. 6 and 7) made of a metal material such as a round steel bar. and have.

As shown in FIGS. 3-5, the clip body 60 is formed in a substantially rivet shape. The clip body 60 includes a support base 61 formed in a substantially disc shape, and a total of four claws 62 extending from the support base 61 to the other side in the axial direction of the mount rubber 40 (the second rubber portion 42 side). , is equipped with A notch 63 is provided between the claw portions 62 adjacent to each other in the circumferential direction of the support base portion 61 . By providing the notch 63 in this way, each claw portion 62 can be elastically deformed individually in the radial direction of the support base portion 61 .

The support base portion 61 is a portion that supports one axial side (first rubber portion 41 side) of the mount rubber 40, and an insertion hole 61a into which the pin member 70 is inserted is provided in the central portion thereof. The longitudinal base end portions of the claw portions 62 are fixed to the support base portion 61 so as to surround the insertion hole 61a. Here, a total of four claw portions 62 are arranged at equal intervals (at intervals of 90 degrees) in the circumferential direction of the support base portion 61, and all are formed in the same shape.

3 and 5, on the opposite side of the support base 61 to the claw portion 62 side, there is a recess on the other side in the axial direction of the clip body 60 (the right side in FIG. 3 and the lower side in FIG. 5). However, a housing recess 61b is provided. The accommodation recess 61b occupies most of the support base 61, and the flange portion 72 (see FIGS. 6 and 7) of the pin member 70 can be accommodated inside the accommodation recess 61b.

The depth dimension d (see FIG. 5) of the accommodation recess 61b in the axial direction of the clip body 60 and the thickness dimension H (see FIG. 8) of the flange portion 72 in the axial direction of the pin member 70 are the same dimension. (d=H). Thereby, in the locked state of the fixed clip 50 as shown in FIG. 9 , the support base 61 and the flange portion 72 are flat (flush) with respect to the axial direction of the fixed clip 50 . Therefore, the operator can easily grasp the locked state of the fixing clip 50 by touching and grasping the flat state (flush state).

As shown in FIGS. 8 and 9, a total of four claw portions 62 are portions that are inserted through the insertion hole 44 of the mount rubber 40 and the attachment hole MH of the vehicle body panel PN. As shown in FIG. 5, these claws 62 are provided from the distal end side (the other side in the axial direction, the lower side in FIG. 5) toward the base end side (the upper side in FIG. 5, in the axial direction). A tapered portion 62a, an engaging convex portion 62b and a hooking claw 62c are provided in this order.

The tapered portions 62a are formed outside the claw portions 62, and the tips of the four claw portions 62 are tapered to guide the insertion of the mount rubber 40 into the insertion hole 44 or the mounting hole MH of the vehicle body panel PN. have. Further, the engaging convex portion 62b is arranged inside the claw portion 62 and near the tip of the claw portion 62 (in the vicinity of the tapered portion 62a), and the annular concave portion 71b of the pin member 70 (see FIGS. 6 and 7). It is a part that engages with Specifically, a total of four engaging protrusions 62b are engaged with the annular recess 71b of the pin member 70 when the fixing clip 50 is in the locked state (see FIG. 9).

In other words, the support base portion 61 and the flange portion 72 become flat (flush) with respect to the axial direction of the fixing clip 50 by engaging the respective engaging protrusions 62b with the annular recesses 71b. In other words, the operator feels that the support base portion 61 and the flange portion 72 are flattened, and the operation feeling when the engaging protrusion 62b enters the annular recess 71b, that is, the engaging protrusion 62b is in contact with the annular recess 71b. The locked state of the fixing clip 50 can be easily grasped by getting a feeling of "click". Therefore, it is possible to prevent occurrence of fixing failure of the wiper motor 10 to the vehicle body panel PN.

In this manner, the four claw portions 62 and the pin members 70 are engaged with each other by the engagement projections 62b and the annular recesses 71b, and the claw portions 62 (clip body 60) and the pin members 70 are axially aligned. movement is restricted. Here, a total of four engaging protrusions 62b and annular recesses 71b correspond to the locking mechanism of the present invention.

Further, as shown in FIG. 9 , when the fixed clip 50 is in the locked state, the pin member 70 spreads a total of four claw portions 62 radially outward of the clip body 60 . As a result, a total of four hooking claws 62c are hooked on the side opposite to the mount rubber 40 side of the vehicle body panel PN (lower side in FIG. 9). In other words, the engaging projection 62b and the annular recess 71b, which are engaged with each other as a locking mechanism, are arranged on the opposite side of the vehicle body panel PN from the side where the mount rubber 40 is provided.

Here, a total of four hooking claws 62c are provided between the engaging convex portion 62b and the support base portion 61 in the longitudinal direction of each claw portion 62, and these hooking claws 62c are hooked on the vehicle body panel PN. In the state (state shown in FIG. 9), a predetermined initial load is applied to the mount rubber 40 in its axial direction. Specifically, in the state of FIG. 9 (locked state of the fixing clip 50), the first rubber portion 41 of the mount rubber 40 is compressed to a thickness T3, and the second rubber portion 42 of the mount rubber 40 is compressed to a thickness T4. compressed into

That is, as shown in FIG. 5, the distance between the hooking claw 62c and the support base 61 is G, and as shown in FIG. Assuming that the dimension is t2, when the mount rubber 40 is in the natural state (fixing clip 50 is in the free state), G<t1+T1+t2+T2 as shown in FIG. On the other hand, when the fixing clip 50 is in the locked state, G=t1+T3+t2+T4, as shown in FIG. A load is applied.

Thus, the hooking claw 62c has a function of applying a predetermined initial load to the mount rubber 40 and preventing the mount rubber 40 from being crushed excessively. In other words, the hooking claw 62c has the function of managing the mount rubber 40 so that it exhibits the anti-vibration performance as designed.

Incidentally, as shown in FIG. 5, the dimension of the widest portion of the hooking claws 62c arranged to face each other in the clip body 60 is W1. The width dimension W1 of these hooking claws 62c is the dimension when the clip body 60 is in the free state (see FIG. 8), and is slightly smaller than the inner diameter dimension D1 of the mounting hole MH of the vehicle body panel PN (W1< D1). Therefore, a total of four claw portions 62 can be smoothly inserted into the mounting holes MH (ensure workability).

However, as shown in FIG. 8, in the free state of the fixing clip 50, the insertion hole 44 (inner diameter D2) of the mount rubber 40 and the hooking claws 62c outside the four claws 62 are provided. The non-existent portions are in contact with each other. Therefore, when the hooking claw 62c is inserted into the insertion hole 44, each claw portion 62 is elastically deformed inside the clip body 60 (W1>D2).

As shown in FIGS. 6 and 7, the pin member 70 is formed in a substantially T shape when viewed from the side, and includes a pin main body 71 formed in a substantially cylindrical shape and a substantially oval (elliptical) shape. ).

The pin body 71 is a portion that is inserted into the insertion hole 61 a (see FIG. 3 ) of the clip body 60 and pushes out a total of four claw portions 62 radially outward of the clip body 60 . A tapered portion 71a is formed on the other side of the pin body 71 in the axial direction (the right side in FIG. 6 and the left side in FIG. 7 on the distal end side), and is aligned with the insertion hole 61a (see FIG. 3) of the clip body 60. It has a shape that makes it easy to insert. In other words, the tapered portion 71a has a function of guiding the insertion operation into the insertion hole 61a (ensuring workability).

An annular recess 71b recessed radially inward of the pin body 71 is provided in the vicinity of the tapered portion 71a in the axial direction of the pin body 71 . The annular recess 71b is provided along the entire circumference of the pin body 71, and when the fixing clip 50 is in the locked state, the annular recess 71b accommodates a total of four engaging projections 62b provided on the clip body 60 (Fig. 5) are engaged.

Here, in a state in which each of the engaging protrusions 62b is engaged with the annular recess 71b, that is, in a locked state of the fixing clip 50, the four claws 62 are spread radially outward by the pin body 71. As shown in FIG. Specifically, the dimension of the widest portion of the hooking claws 62c arranged to face each other is W2 (see FIG. 9) larger than W1 (see FIG. 5) (W2>W1). As a result, the respective hooking claws 62c (four in total) are hooked on the side opposite to the mount rubber 40 side of the vehicle body panel PN (lower side in FIG. 9).

A flange portion 72 having a thickness of H is integrally provided on one axial side of the pin body 71 (the left side in FIG. 6 and the right side in FIG. 7 on the base end side). The flange portion 72 protrudes greatly radially outward of the pin body 71 . When the fixing clip 50 is in the locked state, the flange portion 72 enters the housing recess portion 61b of the clip body 60 so as to be entirely hidden, as shown in FIG. Here, the length of the pin body 71 in the axial direction is the length at which the engagement of the engaging projection 62b with the annular recess 71b and the fitting of the flange 72 into the accommodation recess 61b are performed substantially simultaneously. It's becoming

[Fixation procedure]
Next, a procedure for fixing the wiper motor 10 to the vehicle body panel PN will be described in detail with reference to FIGS. 8 and 9. FIG.

First, the wiper motor 10 assembled in advance through another manufacturing process is prepared. At that time, mount rubbers 40 are attached to the total of three fixed leg portions 33a respectively. Next, the wiper motor 10 is faced to the vehicle body panel PN, and the mount rubbers 40 are respectively arranged in a total of three mounting holes MH provided in the vehicle body panel PN. 8 and 9 show only one of the three mounting rubbers 40 and mounting holes MH.

Next, as indicated by an arrow M1 in FIG. 8, first, the claw portions 62 (four in total) of the clip body 60 forming the fixing clip 50 are inserted into the insertion holes 44 of the mount rubber 40 and the mounting holes MH of the vehicle body panel PN. inserted into the At this time, since both the tapered portion 62a and the hooking claw 62c are tapered, they can be easily inserted into the insertion hole 44 and the mounting hole MH.

Thereafter, the pin body 71 of the pin member 70 is brought to face the support base 61 of the clip body 60, as similarly indicated by the arrow M1 in FIG. Then, the tapered portion 71 a of the pin body 71 is inserted into the insertion hole 61 a of the support base portion 61 . At this time, since the tip side of the tapered portion 71a is tapered, it can be easily inserted into the insertion hole 61a.

9, the operator manually presses the flange portion 72 of the pin member 70 with a predetermined pressing load F. As shown in FIG. Then, the mount rubber 40 is pressed and elastically deformed slightly in its axial direction, and the hooking claws 62c (four in total) pass through the mounting holes MH. After that, the engaging protrusions 62b (four in total) are engaged with the annular recesses 71b, respectively, and substantially at the same time, the flanges 72 fit into the accommodating recesses 61b.

As a result, as indicated by arrow M2 in FIG. 9, the pin body 71 pushes the respective claws 62 (four in total) outward, and as a result, all the hooking claws 62c (four in total) are opened. , is hooked on the opposite side (lower side in FIG. 9) of the vehicle body panel PN to the mount rubber 40 side. Accordingly, the locking operation of the fixing clip 50 by the operator is completed, and the fixing operation of the wiper motor 10 to the vehicle body panel PN is completed as shown in FIG.

The other two fixing clips 50 are also locked in the same manner as described above. Thus, a tool such as an impact driver is not required when fixing the wiper motor 10 to the vehicle body panel PN. Therefore, it is possible to reduce the burden on the operator.

As described in detail above, according to the present embodiment, the fixing clip 50 includes the support base portion 61 that supports one side of the mount rubber 40 in the axial direction, and extends from the support base portion 61 to the other side of the mount rubber 40 in the axial direction. , a clip body 60 having a total of four claw portions 62 inserted through the mount rubber 40 and the vehicle body panel PN, and a pin inserted into the clip body 60 and expanding the total four claw portions 62 radially outward of the clip body 60. An engaging convex portion 62b and an annular concave portion 71b are provided on a total of four claw portions 62 and pin members 70 to engage with each other in concave and convex portions to restrict their relative movement in the axial direction. .

Accordingly, the wiper motor 10 can be fixed to the vehicle body panel PN simply by inserting the pin member 70 into the clip body 60 without using an impact driver or the like. As a result, the fixing structure can be simplified as compared with the bolt-nut method, and the burden on the worker can be reduced to improve work efficiency. In addition, the engagement projection 62b and the annular recess 71b provide a sense of completion of the fixation, thereby preventing the occurrence of fixation failures.

In other words, according to the present embodiment, the fixing structure can be simplified and the working efficiency can be improved, so that the energy required for manufacturing the wiper motor 10 and fixing it to the vehicle body panel PN can be saved. . Therefore, we can achieve the United Nations Sustainable Development Goals (SDGs), especially Goal 7 (Affordable and clean energy) and Goal 13 (Climate action).

Furthermore, according to the present embodiment, the engagement projection 62b and the annular recess 71b (locking mechanism) are arranged on the opposite side of the vehicle body panel PN from the side where the mount rubber 40 is provided. sufficient pull-out strength against the mount rubber 40 and the vehicle body panel PN.

In addition, according to the present embodiment, the vehicle body panel PN is hooked between the engaging projections 62b and the annular recesses 71b (locking mechanism) in the longitudinal direction of the total four claws 62 and the support base 61. A hooking claw 62c is provided to apply an initial load to the rubber 40 in its axial direction.

As a result, the mount rubber 40 can exhibit the anti-vibration performance as designed. In addition, it is possible to effectively suppress variations in the crushing margin of the mount rubber 40 depending on the operator.

Furthermore, according to the present embodiment, the pin member 70 is provided on one side in the axial direction of the pin body 71 to be inserted into the clip body 60 and the pin body 71, and protrudes radially outward of the pin body 71. The support base 61 is provided with a housing recess 61b that is recessed on the other side in the axial direction of the clip body 60 and houses the flange 72, and the flange 72 in the axial direction of the pin member 70. The thickness dimension H and the depth dimension d of the accommodation recess 61d in the axial direction of the clip body 60 are the same dimension (d=H).

This allows the support base 61 and the flange portion 72 to be flat (flush) with respect to the axial direction of the fixing clip 50 in the locked state of the fixing clip 50 . Therefore, the operator can easily grasp the locked state of the fixing clip 50 by touching and grasping the flat state (flush state) (workability improvement).

It goes without saying that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. For example, in the above embodiment, the electric motor is applied to the drive source of the rear wiper device mounted on the rear gate. It can also be applied to other drive sources such as a drive source, a power window device, and a sunroof device.

Further, in the above embodiment, the clip body 60 has a total of four claw portions 62, but the present invention is not limited to this. You can have more than one.

In addition, the material, shape, size, number, installation location, etc. of each component in the above embodiment are arbitrary as long as the present invention can be achieved, and are not limited to the above embodiment.

10: wiper motor (electric motor), 20: motor portion, 21: motor case, 30: gear portion, 31: gear case, 32: output shaft, 33: bracket member, 33a: fixed leg portion, 33b: notch groove, 40 : mount rubber (cylindrical elastic body), 41: first rubber portion, 42: second rubber portion, 43: connecting tube portion, 44: insertion hole, 50: fixed clip, 60: clip body, 61: support base, 61a: insertion hole, 61b: housing recess, 61d: housing recess, 62: claw, 62a: tapered portion, 62b: engaging projection (locking mechanism), 62c: hooking claw, 63: notch, 70: pin Member, 71: Pin body, 71a: Tapered portion, 71b: Annular concave portion (lock mechanism), 72: Flange portion, F: Pushing load, MH: Mounting hole, PN: Body panel (fixed object)

Claims (4)

An electric motor fixing structure for fixing an electric motor to a fixed object,
a fixed leg provided on the electric motor;
a tubular elastic body attached to the fixed leg and disposed between the fixed leg and the object to be fixed;
a fixing clip inserted through the cylindrical elastic body and fixed to the fixing object;
with
The securing clip is
a support base that supports one side of the tubular elastic body in the axial direction; a clip body having a claw;
a pin member that is inserted into the clip body and pushes the plurality of claw portions outward in the radial direction of the clip body;
with
The plurality of claws and the pin member are provided with a lock mechanism that engages with each other to restrict relative movement in the axial direction,
Fixed structure of the electric motor. wherein the locking mechanism is arranged on the opposite side of the fixed object from the side on which the cylindrical elastic body is provided;
The fixing structure of the electric motor according to claim 1. In the electric motor fixing structure according to claim 1 or claim 2,
A hook hook is provided between the locking mechanism and the support base in the longitudinal direction of the plurality of hook portions and is hooked on the fixed object to apply an initial load to the tubular elastic body in its axial direction. ing,
Fixed structure of the electric motor. In the electric motor fixing structure according to any one of claims 1 to 3,
The pin member is
a pin body inserted into the clip body;
a flange portion provided on one side in the axial direction of the pin body and protruding outward in the radial direction of the pin body;
has
The support base is provided with an accommodation recess that is recessed on the other side in the axial direction of the clip body and accommodates the flange,
The thickness dimension of the flange portion in the axial direction of the pin member and the depth dimension of the accommodation recess in the axial direction of the clip body are the same dimension.
Fixed structure of the electric motor.

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