JPH0340544Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a support device for mounting a motor pulley, and is particularly intended to prevent the pulley from floating up.

[Conventional technology]

When attaching a pulley to a motor shaft, there is a method of supporting the pulley in a groove in a jig, applying adhesive (bond) to a hole in the center of the pulley, and then inserting the motor shaft there and gluing it.

[Problem that the invention attempts to solve]

However, in this method, the pulley is simply placed on a jig, so the impact when inserting the motor shaft causes so-called lifting, which reduces the yield rate (for example, if the pulley does not fit within ±0.1 mm of the specified dimension) ).

The present invention provides a locking mechanism for supporting the pulley to equalize the dimensional relationship when the motor pulley is bonded.

[Means for solving problems]

The present invention is a motor pulley support device that uses a jig in which both sides of the groove in which the motor pulley is placed serve as stands against which the motor body comes into contact. It is characterized by a structure in which the pulley is held between the inwardly inclined tip of the plate and the end face of the other table when the presser plate is protruded by a spring.

[Effect]

Since the tip of the presser plate pushed out by the spring is inclined inward, the motor pulley is supported at a fixed position within the groove and is prevented from moving particularly in the vertical direction. Therefore, even if a shock is applied when the motor shaft is inserted, the pulley will not be lifted up.

〔Example〕

FIG. 1 is a perspective view showing one embodiment of the present invention.
2 is the adhesive jig body, 2 is a pulley, and 3 is a motor. There is a groove 4 in the upper part of the jig body 1 in which four to five pulleys 2 can be arranged, and on both sides thereof there are tables 5 and 6 on which the motor 3 is brought into contact. The inside of one of the stands 6 is hollow, and a pulley holding plate 7 is slidably accommodated therein. FIG. 4 shows this part enlarged.

FIGS. 2 and 3 are explanatory diagrams of the internal mechanism for sliding the presser plate 7. FIG. In the figure, reference numeral 10 denotes a lock shaft having a recessed end 11 protruding from the outer wall of the main body 1, and is locked by fitting a lock lever 13 into the recess. Reference numeral 14 represents a return spring when the lock is released. This shaft 10 is locked by pushing the other end 15 in the E direction (FIG. 2). 1
6 is a rotating shaft of the lock lever 13, 17 is a bias spring, and 18 is an unlocking operation section.

The lock shaft 10 has a pair of L-shaped link levers 20.
It is connected to the presser plate 7 by. This lever 20
The connecting portion between the lock shaft 10 and the lock shaft 10 is a rotating shaft 21, and the connecting portion with the presser plate 7 is a rotating shaft 22. 23
is a rotating shaft that pivotally supports the lever 20 on the support plate 24. This support plate 24 is located directly below the groove 4 of the jig main body 1.

Explain the operation. First, when the lock shaft 10 is pushed in the direction of arrow E as shown in FIG.
As a result, the lock lever 13 engages with the recess in the lock shaft 10 and the shaft is locked. At this time, presser plate 7
is pulled into the interior of the stand 6 in the opposite direction to the arrow D by the link lever 20. In this state, a plurality of pulleys 2 are arranged in the groove 4 shown in FIG. 1, and then the lock lever 13 is pushed in the direction A to unlock the shaft 10. When the shaft 10 becomes free, it slides in the direction B due to the elasticity of the spring 14, so the link lever 2
0 rotates in the C direction (Fig. 2) around the axis 23,
As a result, the holding plate 7 moves in the D direction and presses the pulley 2 against the wall surface of the stand 5 as shown in FIG. This prevents movement in the left-right direction in FIG. 4, but since the tip 71 of the presser plate 7 is inclined inward, movement in the vertical direction is also prevented at the same time.

In this state, adhesive is applied to the hole 72 of the pulley 2, and the shaft 73 of the motor shaft 3 (both shown in FIG. 1) is inserted. At this time, if the main body of the motor 3 is brought into contact with the surfaces of the stands 5 and 6 as shown in FIG. 4, the positional relationship with the pulley 2 will be constant, and the problem of floating will not occur even if an impact is applied.

[Effect of idea]

As described above, according to the present invention, the dimensions when the motor pulley is bonded can be made constant, which has the advantage of improving the rate of non-defective products. For example, dimensional tolerance ±
In some cases, the number of defective products at 0.1 mm was reduced to 0% by implementing the present invention, whereas the conventional rate was 50%.

[Brief explanation of drawings]

FIGS. 1 to 4 are configuration diagrams of each part showing an embodiment of the present invention. In the figure, 1 is the jig body, 2 is the pulley, 3 is the motor, 4 is the groove, 5 and 6 are the stands, 7 is the holding plate, 10 is the lock shaft, 13 is the lock lever, 14 is the spring, and 20 is the link lever. be.

Claims (1)

[Scope of utility model registration request] In a motor pulley support device using a jig in which both sides of a groove in which the motor pulley is placed serve as stands against which the motor body is brought into contact, one stand is made hollow and a slidable presser plate is accommodated therein, A support device for a motor pulley, characterized in that when the holding plate is projected by a spring, the pulley is held between the inwardly inclined tip of the holding plate and the end face of the other base.