JPH021558Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a spring hook structure for locking a spring member having a fishhook hook formed on at least one end in a predetermined position.

(Prior art and its problems) In the conventional spring hook of this type, as shown in the fourth and fifth figures, the bent portion 2a of the fishhook hook 2 is locked to one end side of the spring hook hole 1a of the locking member 1. However, after the spring is attached, the hook 2 may come off from the spring attachment hole 1a due to vibration or impact, and it is necessary to fix the hook with a bond or the like. Furthermore, since the hook tip 2b protrudes above the locking member 1, there are other problems such as the need to provide unnecessary space near the hook tip 2b to prevent interference and contact with other members. have.
Further, in the case of a spring used in precision machinery, etc., the diameter of the spring wire is small and the shape of the hook is small, so there are problems in that it is difficult to apply the spring and the hook is easily deformed.

(Purpose of the invention) In view of the above-mentioned circumstances, the present invention is capable of reliably locking a spring member without causing contact interference with other members, and even when the spring wire diameter is small and the hook shape is small. The purpose is to provide a spring hanging structure that allows easy spring hanging work.

(Structure of the invention) Therefore, the spring hanging structure according to the invention forms a locking part in the lower region of the spring hanging hole so that the fishhook hook of the spring member can be inserted between the front wall surface of the spring hanging hole and the front wall surface of the spring hanging hole. At the same time, a holding plate part is formed in the upper region on the biasing direction side of the spring member from the locking part of the spring hanging hole, and the bent part of the fishhook hook is inserted between the locking part and the front wall surface to be engaged. It is configured so that it is locked to the stop part and the tip of the bent part is positioned below the presser plate part to perform spring loading.

(Example) The first and second illustrated spring hook structures include a locking member 100
A fishhook hook 201 formed at one end of the spring member 200 is configured to be locked in the spring hook hole 110 of the spring member 200.

The spring hook hole 110 has a locking portion 111 formed in the lower part of the substantially central region thereof, and a holding plate part 112 is formed in the upper part of one end thereof. One side wall 1 of the locking part 111 and the spring hanging hole 110
The maximum distance β ₁ from the hook 10a is the width α ₁ of the hook 201
The length α2 of the tip portion 201b is smaller than the length α2 of the tip portion 201b. still,
This interval β ₁ is the maximum diagonal length of the spring hanging hole 110 if it is a square hole, and the maximum diameter of the spring hanging hole 110 if it is a round hole. Furthermore, the locking portion 111 of the spring hanging hole 110
The vertical distance β2 between the presser plate 112 and the presser plate 112 is
Preferably, the diameter is approximately equal to the cross-sectional diameter of the hook 201.

In the spring hanging structure constructed in this way, as shown in the third figure, the hook 201 is attached to the bent portion 201a.
Pass it between one side wall 110a of the spring hanging hole 110 and the locking part 111 with the hook facing up, and lower it while rotating clockwise with the bent part 201a holding the locking part 111, until the hook tip 201b It is positioned below the presser plate portion 112 and is spring-loaded.

(Effects of the invention) As described above, according to the spring hook structure according to the invention, the tip of the hook does not protrude above the locking member, so there is no risk of interference contact with other members, and Since the holding plate portion prevents the tip of the hook from rotating in the falling direction, the spring can be reliably locked. Furthermore, since the entire hook is inserted and passed through the spring hanging hole to perform the spring hanging operation, even if the hook shape is small, the operation can be carried out extremely easily.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an embodiment of the spring hanging structure according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is an explanatory diagram showing the spring hanging procedure, and Fig. 4 shows a conventional spring hanging structure. The plan view and FIG. 5 are the cross-sectional views. 110... Spring hanging hole, 110a... One side wall (front wall surface), 111... Locking part, 112... Presser plate part, 201... Fishhook hook, 201a
...Bending part, 201b...Bending part tip, β ₁ ...
...Maximum distance (between the locking part and the front wall).

Claims (1)

[Claims for Utility Model Registration] A spring hanging structure in which a spring member is locked in a spring hanging hole with a fishhook-like hook formed at one end of the spring member, the spring hanging structure having a spring hanging structure in a lower area of the spring hanging hole in front of the spring hanging hole. A locking portion is formed so that the fishhook hook of the spring member can be inserted between the spring member and the wall surface, and a presser plate portion is formed in an upper region on the biasing direction side of the spring member than the locking portion of the spring hanging hole. The bent portion of the fishhook hook is inserted between the locking portion and the front wall surface to be locked to the locking portion, and the tip of the bent portion is positioned below the presser plate portion. A spring-loading structure characterized by being configured to perform spring-loading.