JPH032004Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a latching device between two members, which connects a member to be attached to a shaft.

[Conventional technology]

Conventionally, as shown in FIG. 7, in order to prevent the workpiece 2 inserted into the shaft from coming off, the workpiece 2 is connected to the shaft 1' using a clip 4, which is a hook.

[Problem that the invention attempts to solve]

However, in the case of FIG. 7, the shaft 1' is rounded, and sufficient spring force is required for the clip 4 to prevent it from falling off.
This made assembly workability worse.

Therefore, in order to solve such problems, this invention has been developed to attach a clip or the like for positioning the attached material in the axial direction at the connection part between the attached material and the shaft, which have a hole inserted into the shaft. When using a fastener, the spring force of the clip is not required compared to conventional methods, improving the workability of assembling the fastener to the shaft, and the fastener can easily fall off the shaft even if the clip's spring force is weak. The goal is to avoid doing so.

[Means for solving problems]

Therefore, this invention attempts to solve the above-mentioned problems by forming a surface for preventing the hook from coming off at the tip of the shaft.

In more detail, referring to the reference numerals shown in FIG. The shaft 1 and the attached material 2 are connected by a hook 4 such as a clip or a split pin to prevent the attached material 2 from coming off the shaft 1. In the latching device, a latching tool removal preventing surface part 6 is formed on the tip 1a of the shaft 1, a latching tool insertion hole 7 for the latching tool 4 is provided in this latching tool removal preventing surface part 6, and one end 4a has a straight part 40, and the other end 4b is U
Insert the straight portion 40 of the wire-shaped hook 4 bent into the shape portion 41 into the hook insertion hole 7,
The U-shaped portion 41 of the hook 4 is hooked to a hook removal prevention surface 6 provided on the shaft 1, so that the workpiece 2 is coupled to the shaft 1.

[Effect]

According to the above-mentioned means, the latching tool removal prevention surface part 6 is formed on the tip part 1a of the shaft 1, and the latching tool insertion hole 7 of the latching tool 4 is provided in this latching tool removal prevention surface part 6. Since the straight part 40 of the hanging tool 4 is inserted into the hanging tool insertion hole 7, the assembling work of the hanging tool 4 to the shaft 1 is easy. The latching tool 4 is latched to the latching tool removal prevention surface part 6 provided on the shaft 1, so that the latching tool 4 is latched onto the shaft 1 with difficulty.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

The drawings from FIG. 1 to FIG. 4 show the first embodiment of this invention, and the shaft 1 shown in FIG.
The hole 3 of the workpiece 2 shown in FIGS. 1 and 2 is inserted, and the workpiece 2 is connected to the shaft 1.
This connection part is designed to connect the shaft 1 and the workpiece 2 by preventing the workpiece 2 from coming off the shaft 1 using a clip 4, which is a hanging tool. is the tip 1a of the shaft 1
A width across flat portion 6, which is a surface portion for preventing the hook from being removed, is formed in which the flat portions 5, 5 are opposed to each other.

A clip insertion hole (hanger insertion hole) 7 for the clip 4 is provided approximately at the center of the width across flats portion 6, and the clip 4 is made of thin wire, with one end 4a of the clip inserted into the straight portion 40. has, and also
The other portion 4b is bent into a U-shaped portion 41.

Then, by inserting the straight portion 40 of the clip 4 into the clip insertion hole 7 of the width across flat portion 6 as shown in FIGS. 1 and 2, the member to be attached 2 is coupled to the shaft 1. be.

Next, a description will be given based on FIG. 4.

Even if the clip 4 tries to come off the shaft 1 in the direction of arrow A, the U-shaped tip 410 of the U-shaped portion 41 of the clip 4 hits the flat surface 5 of the shaft 1, so that
No matter how much force is applied, the clip 4 will not expand, so the spring portion 42 of the clip 4 does not need to be stronger than before, and the assembling workability is improved.

5 and 6 show a second embodiment of this invention, in which the flat portion 5 of the width across flat portion 6, which is the surface portion for preventing the hook from being removed, formed on the shaft 1 shown in FIG. , 5 and 6, the shaft 1 is provided with chamfered portions 5', 5' which are conical chamfered surfaces 6' to prevent the hook from being removed. ' holds the U-shaped tip 410 of the U-shaped portion 41 of the clip 4, and performs the same function as the flat portion 5 of the first embodiment.

[Effect of idea]

As mentioned above, this invention forms a retaining tool removal prevention surface at the tip of the shaft, inserts the material to be attached into this shaft and connects it with a retaining tool such as a clip, and the U-shaped part of the retainer Since it is latched to the latching tool removal prevention surface of the shaft, the workability of assembling the latching tool to the shaft is good, and in addition, the latching tool does not come out from the latching tool insertion hole of the shaft. do not have.

[Brief explanation of the drawing]

The drawings from Fig. 1 to Fig. 4 show the first embodiment of this invention, in which Fig. 1 is a plan view, Fig. 2 is a sectional view taken along the line - - of Fig. A perspective view of the gist, FIG. 4, a drawing showing a state in which the latching tool is prevented from coming off from the shaft, and FIGS. 5 and 6.
The figure shows the second embodiment of this invention, and the fifth embodiment.
The figure shows a plan view equivalent to FIG. 1, FIG. 6 a perspective view equivalent to FIG. 3, FIG. 7 a conventional example, and FIG. 7 a plan view equivalent to FIG. 1. 1... Shaft, 1a... Tip, 2... Mounted material, 3... Hole, 4... Clip, 4a
...One end, 4b...Other end, 40...Straight section, 41
... U-shaped part, 6, 6' ... Latching tool removal prevention surface part,
7...Hatch insertion hole (clip insertion hole).

Claims (1)

[Scope of utility model registration request] A workpiece having a hole inserted into the shaft is inserted into the shaft, and at the connecting part between the shaft and the workpiece, the workpiece can be removed from the shaft by a clip or a cotter pin or other hanging device. In a latching device between two members, which prevents the shaft from coming off and joins the shaft and the attached material, a surface portion for preventing the latching tool from being removed is formed at the tip of the shaft to prevent the latching tool from coming off. A hole for inserting the hook into the hook is provided in the surface portion, and the straight portion of the hook is inserted into the wire-like hook, which has a straight portion at one end and is bent into a U-shaped portion at the other end. the U-shaped part of the latching tool is inserted into the hole, and the U-shaped part of the latching tool is latched to the latching tool removal prevention surface part provided on the shaft,
A latching device between two members, characterized in that the attached member is coupled to the shaft.