JPS5811355Y2 - Vibrating body mounting device - Google Patents

Description

[Detailed description of the invention] This invention relates to a mounting device for a vibrating body such as a washing machine motor, and is designed to make it difficult for the vibration of the vibrating body to be transmitted to the mounting base (main body side) and to prevent the vibrating body from moving after installation. It is something.

This will be explained below based on the diagram.

1 to 6 show a conventional example, in which a motor 1 that drives the rotor blades of a washing machine is mounted on a pair of mounts 2, 2, from the periphery of the support piece 3 of the motor 1 as shown in FIG. Insert the neck part 6 of the cylindrical cushion material 5 into the slit 4 cut in the same manner as shown in FIG. Pass the washer 10 through the male threaded portion 14, and
A semicircular nut 11 as shown in the figure is screwed together and temporarily tightened, and this nut 11 is inserted under the mounting base through an opening 12 of the same shape as the nut 11 provided in the mounting base 2, and is connected to the opening 12. The motor 1 was mounted by moving the male screw part 14 to a specified position along the oblong mounting hole 13, then tightening the bolt 9.

When this bolt 9 is tightened, the straight part 11' of the semicircular nut 11 comes into contact with the upright inner wall 2' of the mounting base 2 and is prevented from rotating, and the stepped part 15 of the stepped bolt 9 is fitted with a washer. The abutment of the bolts 10 prevents the bolts 9 from being over-tightened.

In such a case, the stepped portion 15 of the bolt and the washer 1
Since the contact surface with the washer 10 is small, excessive force is applied to the washer 10 when the bolt is tightened, and the washer 10 is easily deformed and wedged into the mounting base 2. As a result, the cushion material 5 shrinks too much and cannot sufficiently absorb vibrations. There was a drawback that the vibration was transmitted to the mounting base 2 via the washer 10 and nut 11.

Furthermore, after installation, there was a risk that the motor would move from the specified position due to belt tension, etc.

The present invention has been devised in view of this point, and a boss 16 as shown in FIG. 10 is inserted into the central through hole 7 of the cylindrical cushion material 5 from below instead of the conventional stepped bolt.

A rectangular flange 18 having sawtooth-like irregularities 17 on its upper surface is formed at the lower end of the boss 16 .

- The front mounting base 2 has a rectangular opening 19 into which the flange 18 can be inserted, and an oval mounting hole 20 that is continuous from this opening 19, and the front mounting base 2 has a rectangular opening 19 into which the flange 18 can be inserted; An uneven surface 21 is formed which fits into the uneven surface 17 of the flange in a direction perpendicular to the longitudinal direction of the mounting hole.

Further, a pair of grooves 22 are provided at the lower part of the outer periphery of the boss 16 and are fitted into the mounting holes 20 and are movable along the longitudinal direction thereof.
is formed.

To install the motor 1, insert the flange 18 of the boss 16 under the mounting base through the opening 19 of the mounting base 2, fit the groove 22 into the mounting hole 20, and move it to the specified position along the mounting hole 20. urge

Then, the boss 16 is inserted into the central through hole 7 of the cylindrical cushion material 5.

At this time, the height of the upper end of the boss 16 is determined so that it is slightly (by A) lower than the upper end of the cushion material 5.

Then, the neck 6 of the cushioning material 5 is inserted into the slit 4 of the motor support piece 3, and the tapping screw 24 is tightened to the boss 16 from the upper end of the cushioning material through the washer 23 to attach the motor.

In this installed state, the uneven surface 17 on the top surface of the flange matches the uneven surface 21 around the mounting hole, so even if tension is applied to the motor by a belt hooked to a pulley fixed to the motor shaft 25, the motor will not move. There is no such thing as moving.

Further, as the tapping screw 24 is tightened, the upper end of the boss 16 comes into contact with the washer 23 to reliably prevent further tightening of the screw.

This is because the boss 16 that receives and stops the force of the screw is stronger than the conventional washer 10 and does not deform, and the load receiving area can be increased.

Therefore, according to the present invention, it is possible to reliably prevent the mounting screw 24 from being over-tightened, so that the cushioning material does not become too flat and lose its elasticity, and the vibrations of the vibrating body can be sufficiently absorbed. can.

Furthermore, the washer 10 that prevents over-tightening, which is conventional, is not required, resulting in lower costs.

Furthermore, after installation, the motor will not shift from the specified position due to belt tension, etc.

If the mounting hole 20 is made into a non-circular shape and a groove 22 is provided on the outer periphery of the boss to fit into the mounting hole, the boss is automatically prevented from rotating during installation, resulting in good workability.

[Brief explanation of drawings]

The drawings show a mounting device for a motor (vibrating body), and FIG. 1 to FIG. 6 are conventional examples, FIG. 1 is a front longitudinal cross-sectional view, FIG. The figures are an enlarged view of the circle in Fig. 1, Fig. 4 is a perspective view of the mounting base, Fig. 5 is a plan view of the nut, Fig. 6 is a plan view of the support piece, and Figs. 7 to 10 show the present invention. 7 and 8 are sectional views corresponding to FIGS. 1 and 2, respectively, FIG. 9 is a perspective view of the mounting base, and FIG. 10 is an exploded perspective view of the cushion material and the boss. 1... Motor (vibrating body), 3... Support piece, 4... Slit, 5... Cylindrical cushion material, 6...・Neck, 2...Mounting base, 20...Mounting hole, 18...Flange, 16...Boss, 7...Center penetration Hole, 17.21...Uneven surface, 23...Washer, 24...Tapping screw (mounting screw), 22...Groove.

Claims (1)

[Claims for Utility Model Registration] ■ Insert the neck of the cylindrical cushioning material into a slit cut from the periphery of the support piece formed on the vibrating body, and insert the cushioning material into the mounting hole provided on the mounting base. A boss having a flange at its lower end is inserted into the central through-hole of the cushioning material through the mounting hole, and the joint surface between the flange and the periphery of the mounting hole is a convex-concave joint, and the boss The upper end is slightly lower than the upper end of the cushion material,
A mounting device for a vibrating body in which a mounting screw is screwed into the boss from the upper end of the cushion material through a washer. (2) The mounting device for a vibrating body according to claim 1, wherein the mounting hole is made into a non-circular shape, and a groove that fits into the mounting hole is formed at a lower portion of the outer periphery of the boss.