JPH0510530Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a mounting device for a motor used as a drive source for various electrical devices.

(Prior Art) Generally, when attaching a motor, which is a drive source for various electrical devices, to a support, for example,
As disclosed in Japanese Patent No. 31646, a plurality of mounting holes for inserting screws are formed in a chassis that is a support for mounting a motor, and a plurality of screw holes are also formed in a case that houses and protects the motor. In some motors, the motor is attached to the support by aligning the mounting holes and screw holes so that they correspond to each other, and tightening the screws through the mounting holes of the support.

(Problem to be solved by the invention) By the way, the work of attaching the motor to the support using multiple screws involves aligning the screw holes of the motor and the mounting holes of the support, and also aligning the screw holes of the motor with the mounting holes of the support. The problem is that the screws must be positioned and tightened, making the installation process difficult and time-consuming. In addition, in order to fix the motor to the support with screws, multiple screws and separate parts such as a motor storage case are required, which increases the number of parts, not only increases assembly man-hours but also increases costs. There is also the problem of putting it away.

Furthermore, if the screws become loose due to vibrations when the motor rotates, the tightening force decreases, causing the motor to wobble with respect to the support.

The purpose of the present invention is to solve the above-mentioned problems and provide a motor mounting device that does not require special mounting parts such as motor mounting screws, facilitates the mounting work, and can securely hold the motor on a support. shall be.

[Structure of the idea]

(Means for Solving the Problems) The present invention provides a plurality of grooves in a continuous or intermittent annular wall protruding from a support body to form elastic pieces that can be elastically deformed, and between each of the elastic pieces. A mounting body is provided on the rotary shaft output side of the motor to face the support body, and a through hole through which the rotary shaft is inserted is bored in the mounting body. A contact portion formed by providing a groove around the periphery is formed to be elastically deformable along the axial direction of the motor, and the contact portion is pressed in the axial direction of the motor.

(Function) By providing a plurality of grooves in each of the annular wall that fits and holds the motor and the mounting body that presses the motor in the axial direction, the annular wall and the mounting body are formed to be elastically deformable, and the motor is reliably elastic. is maintained.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

1 to 3 show a first embodiment of the present invention, and a case in which the motor 1 is housed is shown, for example.
The case is made of a synthetic resin material such as HI polystyrene or polypropylene, and serves as a support 2 to which the motor 1 is attached.

This support body 2 has a protruding annular wall 3 formed with an inner diameter slightly smaller than the outer diameter of the motor 1 at the mounting position of the motor 1, and a plurality of grooves 4 are formed from the periphery of the open end of the annular wall 3. An elastic piece 5 that can be elastically deformed is formed in the annular wall 3 by each groove 4, and a cylindrical rib 6 on which the motor 1 is placed is formed inside the annular wall 3. The motor 1 is fitted between the elastic pieces 5, and the motor 1 is resiliently held between the elastic pieces 5. In the motor 1, the lead wires 1B are drawn out from a pair of opposing grooves 4A, which are formed deeper than the opening ends of the ribs 6 in the grooves 4. In this embodiment, a buffer member 7 made of an elastic material such as rubber is attached to the rib 6 to provide a vibration damping effect for the motor 1, but it is not necessary to provide the buffer member 7. .

In addition, a plurality of mounting legs 8A are formed protruding from the support 2 to support a mounting body 8, which will be described later, and are disposed on the lead-out side of the rotating shaft 1A of the motor 1, facing the support 2. Each of the mounting legs 8A is provided with a mounting hole 8B.

The mounting body 8 is made of a synthetic resin material such as HI polystyrene, and includes a flat plate portion 9 and a side peripheral wall portion 10.
A flange portion 11 is formed protruding from the lower end of the side peripheral wall 10, and mounting holes 12 are formed in the flange portion 11 in correspondence with the mounting holes 8B of the mounting legs 8A.

Further, a circular through hole 13 through which the rotating shaft 1A of the motor 1 is inserted is bored in the flat plate part 9 of the mounting body 8, and the area around the through hole 13, in this embodiment, is A plurality of grooves 14 are formed on the periphery, and the grooves 14 form an abutting part 15 on the periphery of the through hole 13 that can be elastically deformed along the axial direction of the motor 1, and the groove 14 forms a contact part 15 that can be elastically deformed along the axial direction of the motor 1. A support shaft 16 is integrally buried in the position by insert molding or the like, and the support shaft 16 meshes with a drive gear 17 attached to the rotating shaft 1A of the motor 1 to control the rotation of the motor 1 to a driven member (not shown). A transmission gear 18 for transmission is rotatably supported.

In the above structure, when the motor 1 is first attached to the support 2, the motor 1 is fitted into the annular wall 3 formed on the support 2, and the motor 1 is attached to the rib 6 protruding into the annular wall 3 via the buffer member 7. Insert it until it makes contact.

At this time, the motor 1 drives the groove 4 of the annular wall 3.
As a result, each elastic piece 5 formed by this is pressed outward, so that each elastic piece 5 is elastically deformed outward and elastically holds the motor 1.

Next, a mounting body 8 is arranged on the rotating shaft 1A lead-out side of the motor 1, and a through hole 13 is bored in this mounting body 8.
The rotary shaft 1A is inserted through the rotary shaft 1A, and a contact portion 15 formed by a groove 14 provided at the periphery of the through hole 13 is brought into contact with the rotary shaft 1A lead-out side of the motor 1.

In this case, as shown in FIG. 3B, the support 2
The height of the protruding part 8A is set so as to form a slight gap A between the mounting leg 8A protruding from the mounting body 8 and the flange part 11 of the mounting body 8. With the hole 8B and the mounting hole 12 provided in the flange portion 11 aligned, a mounting screw 19 is inserted into the mounting hole 12 through the mounting hole 8B, 12 to cover the outside of the mounting body 8. This tightening causes the contact portion 15 of the mounting body 8 to be elastically deformed by the gap A along the axial direction of the motor 1, and the contact portion 15 , elastically presses the motor 1 in its axial direction.

Therefore, by fitting the motor 1 into the annular wall 3 and attaching the mounting body 8 to the support body 2, the elastic piece 5 of the annular wall 3 provides elasticity in the horizontal direction orthogonal to the axial direction of the motor 1. is maintained,
In the axial direction, it is elastically pressed by the abutment part 15 of the mounting body 8, and unlike conventional methods, there is no need for special parts for mounting the motor 1, and the motor 1 can be mounted at the same time as other components such as the spindle 16 are mounted. It can be held, the installation work can be simplified, and the holding force can be maintained even when vibrations are applied, so it can be installed reliably.

In addition, since the motor 1 is elastically held between the elastic pieces 5 that can be elastically deformed, there may be variations in the mounting position of each component such as the annular wall 3 or the support shaft 16 embedded in the mounting body 8. Since the rotational shaft 1A of the motor 1 can also be absorbed, the meshing state of the rotating shaft 1A of the motor 1 can be improved.

4 and 5 show a second embodiment of the present invention, and the same parts as in the first embodiment will be described using the same reference numerals.

In this embodiment, a plurality of approximately U-shaped grooves 20 are bored in an annular wall 3 that projects from the support 2, and the annular wall 3 surrounded by the grooves 20 is made into an elastic piece 21 that can be elastically deformed.

In this case, the groove portion 20 is formed in the elastic piece 21 so that the proximal end thereof is on the opening side of the annular wall 3, and the groove portion 20 is formed on the distal end side of each elastic piece 21 toward the inside of the annular wall. A protrusion 22 is formed to protrude.

Therefore, when the motor 1 is fitted into the annular wall 3, the protrusion 22 of the elastic piece 21 of the motor 1 is pressed outward, so that the elastic piece 21
is elastically deformed outward to elastically hold the motor 1, and in this state, a mounting body 8 is disposed on the side where the rotating shaft 1A of the motor 1 is led out, and a through hole 13 of the mounting body 8 is bored. The motor 1 is resiliently held and attached to the support body 2 by pressing the contact portion 15 formed by the groove portion 14 in the axial direction of the motor 1, and is similar to the first embodiment. Effect/
effect can be obtained.

The present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the gist, and the depth, number, etc. of the grooves may be set as appropriate. When the annular wall 23 is divided by the groove portion 4B as shown in FIG. Also,
The abutting portion provided around the through hole 13 of the attachment body 8 does not necessarily have to be connected to the through hole, and an elastic piece having the same shape as the elastic piece shown in FIG. 4 may be used.

[Effects of the invention] The present invention provides a plurality of grooves from the periphery of the opening end of a continuous or intermittent annular wall protruding from a support body to form elastic pieces that can be elastically deformed, and between each of the elastic pieces. a motor is fitted and held therein, and a mounting body is disposed on the rotating shaft side of the motor opposite to the support body;
A through hole through which the rotating shaft is inserted is bored in the mounting body, and a contact portion formed by providing a plurality of grooves around the through hole is formed so as to be elastically deformable along the axial direction of the motor. By pressing the abutting part in the axial direction of the motor, the motor is elastically held by the elastic piece that can be elastically deformed and the abutting part, suppressing vibrations that occur when the motor rotates, and ensuring a reliable In addition, the motor can be easily installed without the need for screws or mounting parts, and the assembly work is simplified.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention, in which FIG. 1 is an exploded perspective view, FIG. 2 is an overall sectional view,
3A and 3B are both sectional views showing the assembled state of the present invention, FIGS. 4 and 5 show a second embodiment of the present invention, and FIG. 4 is an exploded perspective view of the main parts;
FIG. 5 is a sectional view, and FIG. 6 is an exploded perspective view of essential parts showing another embodiment of the present invention. 1... Motor, 1A... Rotating shaft, 2... Support body, 3, 23... Annular wall, 4, 4A, 4B, 1
4, 20... Groove portion, 5, 21, 24... Elastic piece,
8... Mounting body, 13... Through hole, 15... Contact portion.

Claims (1)

[Scope of utility model registration request] A continuous or intermittent annular wall protruding from a support body, an elastic piece formed to be elastically deformable by providing a plurality of grooves in the annular wall, and a motor fitted and held between each of the elastic pieces. , a mounting body disposed on a rotating shaft output side of the motor opposite to the support body, a through hole bored in the mounting body through which the rotating shaft is inserted, and a plurality of grooves around the through hole. and a contact portion configured to be elastically deformable along the axial direction of the motor and press the motor in the axial direction.