JPH0218675Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an installation device for a washer motor in a washer tank installed in a traveling vehicle such as an automobile.

[Problems to be solved by the prior art and the invention] Generally, this type of vehicle is equipped with a window washer, but some of these include:
There is one in which a washer motor is directly attached to a washer tank into which window washer fluid is poured. However, in the past, as shown in FIG. 5, a bush 7 was fitted into a mounting opening 2a formed in a concave portion 2 formed in a wash tank 1, and a wash motor 3 was fitted into the bush 7, thereby attaching the wash motor 3 to the wash tank. I am trying to install it on 1. However, in this case, if the washer motor 3 comes into direct contact with the washer tank 1, the vibrations of the washer motor 3 will be directly transmitted to the washer tank 1, and a large resonance sound will be generated from the washer tank 1 as noise. A buffer body (damper) 8 consisting of a washer motor 3 is fitted onto the washer motor 3, and when the washer motor 3 is attached to the washer tank 1, the washer tank is This buffers vibration transmission to the washer tank and reduces noise generation from the washer tank.
However, this method requires a separate dedicated shock absorber, which increases the number of parts, and also requires work to fit the shock absorber, which impairs work efficiency during assembly. It is difficult to fit it in the correct position, and the positional relationship between the washer motor, shock absorber, and washer tank is not constant, and as a result, the noise generated from the washer tank cannot be sufficiently reduced, which is a problem. I was getting used to it.

[Means for Solving the Problem] In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing a mounting device for a washer motor in a washer tank that can eliminate these drawbacks. Into the washer tank where liquid is injected,
When installing a washer motor in which an inlet and an outlet are formed on the outer periphery of the motor case, a bushing is interposed at the part where the washer motor is attached to the washer tank, and this bushing includes a buffer that contacts the outer periphery of the motor case. The part, the fitting part into which the inflow port fits, and the positioning protrusion are integrally formed.
A mounting opening through which the fitting portion is inserted and a portion into which the protrusion is inserted are formed, and the contact portion of the buffer portion with the washer motor is configured to have a stepped shape for line contact or a protrusion shape for point contact. It is characterized by the fact that

With this configuration, the bush itself can be used as a shock absorber, allowing parts to be used for multiple purposes, and the intervening position between the wash tank and the wash motor can be kept almost constant. This provides a buffering effect and eliminates noise from the washer tank as much as possible.

[Example] Next, an example of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes a washer tank into which window washer liquid is poured, and a recessed part 2 in which a mounting opening 2a is opened is formed on the lower side of the washer tank 1. The washer motor 3 is attached with the bush 4 interposed therebetween. That is, the washer motor 3 is provided with an inlet 3a through which the window washer fluid flows and an outlet 3b through which it is discharged. It can be attached to the wash tank 1 by tightly fitting the inlet 3a into the fitting part 4a of the bush 4, which is made of a rubber elastic body and is attached to the bush 4. This bushing 4 is further integrally formed with a buffer portion 6 having a stepped shape on the motor surface side.

That is, this buffer section 6 is used when the washer motor 3 is installed using the bush 4 as described above.
The buffer part 6 is sandwiched between the washer tank 1 and the washer motor 3, and the contact part of the buffer part 6 with the washer motor 3 has a plurality of strips that are substantially parallel to the axial direction of the cylindrical motor case 3c. The stepped portion 6a is formed so as to be in a line contact state (in this embodiment, a total of six line contact states). The bush 4 is further provided with a protrusion 5 for positioning in the buffer part 6, and by fitting this protrusion 5 into the recess 1b provided in the washer tank 1, the bush 4 can be moved to its position. The mounting position is now determined accurately.

In the embodiment of the present invention constructed as described above, the washer motor 3 is installed by fitting the inlet 3a of the washer motor 3 into the fitting part 4a of the bush 4 which has been previously attached to the washer tank 1. However, in this case, in the present invention, the buffer part 6 is integrally provided with the bush 4, and as described above, by installing the washer motor 3 with the bush 4 interposed, this buffer part 6 is removed. is interposed between the washer tank 1 and the washer motor 3, so there is no need to fit a separately prepared dedicated buffer to the washer motor 3 as in the past. This not only reduces the number of parts, but also greatly improves work efficiency during installation. Furthermore, since the fitting portion 4a of the bush 4 fits into the washer tank 1 and is in line contact with the motor case 3c of the washer motor 3, the mounting position of the bush 4 remains almost constant without any variation. Furthermore, in this embodiment, since the positioning can be performed using the protrusion 5, the buffer part 6 can be installed in an extremely accurate position. Therefore, the buffer part 6 can always be interposed between the wash tank 1 and the wash motor 3 in a predetermined posture. As a result, an excellent buffering effect can be achieved.

In addition, the buffer part 6 and the motor case 3c of the washer motor 3 are supported in a step-like manner with a plurality of line contacts parallel to the axial direction, so that the contact is made in the conventional surface contact state. Therefore, the noise generation from the washer tank 1 can be minimized. For example, when the washer tank 1 containing about 1
In the case of using the conventional buffer shown in Fig. 5, the noise was about 70 dB, but with the device of the present invention, it was possible to reduce the noise to an extremely low value of about 64 dB. It can be inferred that a major factor is that the contact between the motor case 3c and the motor case 3c is made into a stepped line contact state instead of the conventional surface contact state.

It should be noted that the present invention is of course not limited to the above-mentioned embodiments, but the number of wires in the line contact state of the buffer section with the washer motor can be increased or decreased as necessary, and the line contact direction can be changed depending on the motor. It is not permissible for the case to be parallel to the axial direction of the case, but for example, it may be parallel to the axial center or inclined. Also, in the present invention, the contact is not in a line contact state, but as shown in Fig. 4. It is also possible to form a protrusion 6b on the buffer part 6 so as to be in point contact with the washer motor, and furthermore, the present invention can be implemented by combining line contact and point contact. .

[Operations and Effects] In summary, the present invention is constructed as described above, and if a bushing is used when attaching the washer motor to the washer tank, the buffer portion is integrally provided in this bushing, so it is possible to As shown in the figure, there is no need to fit a separately prepared special shock absorber into the washer motor, and therefore parts can be used for multiple purposes, reducing the number of parts and greatly improving the workability of installation work. can do. Moreover, since the bushing is installed in advance on the wash tank side when installing the wash motor, the position of the buffer part is accurate, and the contact between the buffer part and the wash motor or the wash tank is either line contact or point contact. As a result, the damping effect of the vibration transmission from the washer motor is extremely excellent and stable, with no variation, and as a result, the noise generated from the washer tank can be minimized as much as possible. As a result, significant noise reduction can be achieved.

[Brief explanation of drawings]

The drawings show an embodiment of a washing motor mounting device for a wash tank according to the present invention, with FIG. 1 being an exploded perspective view showing the mounting device, and FIGS. 2 A and B showing the mounted state. 3A, B, and C are respectively a front view, a side view, and a plan view of the bushing; FIGS. 4A and B are a front view, a plan view, and a 5th Figures A and B are an exploded perspective view and a cross-sectional view, respectively, showing a conventional example. In the figure, 1 is a wash tank, 1b is a recess, and 2
3 is a mounting port, 3 is a washer motor, 3a is an inlet, 3b is an outlet, 3c is a motor case, 4 is a bush, 5 is a protrusion, 6 is a buffer portion, and 6a is a stepped portion.

Claims (1)

[Scope of utility model registration request] A washer tank 1 into which window washer fluid is injected has an inlet 3 on the outer periphery of the motor case 3c.
When installing the washer motor 3 in which the washer motor 3 is formed and the outflow port 3b is formed, a bushing 4 is interposed at the attachment part of the washer motor 3 to the washer tank 1, and the bushing 4 is in contact with the outer periphery of the motor case 3c. The buffer part 6, a fitting part 4a into which the inflow port 3a is fitted, and a positioning protrusion 5 are integrally formed, while the washer tank 1 has a mounting opening 2a into which the fitting part 4a is inserted.
and a recess 1b into which the protrusion 5 is fitted, and the contact portion of the buffer portion 6 with the washer motor 3 is formed into a step shape for line contact or a protrusion shape for point contact. A mounting device for a washer motor in a washer tank.