JPS5825447Y2 - Attachment device for push button on operating rod - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a synthetic resin push button (
The installation for inserting and installing various types (including type 1) is related to the device.

Conventionally, in most cases of attaching this type of push button, adhesive such as bond is applied to the surface of the end of the operating rod, and in this state, the push button is inserted into the end of the operating rod, and both are bonded together using adhesive. I used the method of gluing it.

However, such gluing work is very complicated and unsanitary, and the solvents in the adhesive and the like can have various negative effects on line workers during assembly.

Furthermore, there is a time loss between applying the adhesive to the end of the operating rod and inserting the push button in step 1, and the adhesive dries after inserting the push button, so that the push button is completely fixed to the operating rod. This had a major drawback in that there was a considerable amount of time lost during assembly, which slowed the flow of the assembly line and prevented work efficiency from being improved.

The present invention was devised in order to correct the above-mentioned defects. A metal piece having a locking piece that is bent and then further bent at a right angle to the base end on the opposite side of the base end, and one side of the hollow part into which the metal piece is inserted. It is made of synthetic resin, and has an insertion groove into which the end of the operating rod is inserted, and the insertion groove has an insertion groove for the lock piece, which is provided perpendicularly across the center of the rod. The metal piece is inserted into the center of the push button and fixed, the lock piece is placed in the insertion groove, and the end of the operating rod is inserted into the insertion groove of the push button. By doing so, the end of the operating rod and the lock piece are engaged at right angles, and the elasticity of the lock piece is used to push the lock piece into the engagement hole at the end of the operating rod. The operating rod and the push button are fixed to each other by being engaged with each other.

With this configuration, the push button can be attached to the end of the operating rod extremely easily and reliably.

An embodiment of the present invention will be described below with reference to the drawings.

First, referring to the buttons in FIGS. 1 to 4, ``G'' is an operating rod made of a sheet metal member, into which a push button 1 is inserted and fixed.

A pair of notches 2a and 2b are formed on both sides of the end portion 1a of the nameplate, and an engagement hole 3, which is an elongated hole, is formed approximately in the center.

5 is a push button made of synthetic resin, the end side of which is open;
A decorative board 6 is adhered to the surface of the other end.

The inside of the push button 5 is formed in a hollow shape, and as shown in FIG. The ribs 8a8b are formed to face each other.

These ribs 8a, 8tJ: are formed parallel to the hollow portion 20 with a pair of insertion grooves 9a, 9b facing each other.

Na 3-ryo reply 8a. Both insertion grooves 9a are provided between the opposing surfaces of 8b.
, 9b is formed at a right angle across the center thereof, and this gap forms the insertion groove 2 of the lock piece 13, which will be described later.
1.

11 is a metal piece formed of a thin plate, and this metal piece 1
1, the base end portion 1 is bent into a U-shape with respect to the substrate portion 12, and then bent at a right angle to the substrate portion 12.
A lock piece 13 folded back to the opposite side from 2 is integrally formed with the folded piece 14 interposed therebetween.

Further, a bent piece 15 having a bi-right angle shape is integrally formed at one end of the base plate part 12, and both ends of the bent piece 15
A pair of retaining pieces 16a and 16b are integrally molded, projecting on both sides of the housing and slightly tilted sideways.

Note that the top surface portion of the lock piece 13 is formed into a mer-shape by a slope 17a having a relatively small inclination angle and a long length, and a slope 17b having a relatively large inclination angle and a short length. .

Next, the procedure for attaching the push button 5 to the end portion 1a of the operating rod 1 will be explained. At this time, the metal piece 11 is attached to the inside of the push button 5 in advance and then peeled off.

That is, as shown in FIGS. 2 to 4, the metal piece 11 is held against the pair of inner wall surfaces 7a, 7 of the push button 5 by its two retaining pieces 16a, 16b.
b, and with the base plate 12 in close contact with the inner wall surface 7c on one side of the push button 5, push this metal piece 11 onto the push button 5.
Press fit into the hollow part 20 at the deep end 1.

At this time, the lock piece 13 is inserted into the insertion groove 21 in the middle of the ribs 8a, 8b, and the lock piece 13 crosses the middle part of the insertion grooves 9a, 9b at right angles.

Also, at the time of this pushing-in, both the pushing pieces 16a are removed.

16b is pushed in while being slightly bent inward against its elasticity, so it can be easily pushed in with a relatively weak force.

However, once it is pushed in completely, the retaining pieces 16a and 16b bite into the inner wall surfaces 7a and 7b, and the metal piece 11 is completely prevented from being pulled out from within the push button 5. Ru.

In this state, the push button 5 is inserted into the end portion 1a of the operating rod 1 through its insertion grooves 9a and 9b as shown in FIGS. 5A to 5C and 6A to 6C.

First, before the end 1a of the operating rod 1 comes into contact with the slope 17a of the lock piece 13, the lock piece 13 and the bent piece 14 of the lock piece 13
Due to the elasticity of the parts, it is completely restored as shown in Figures 5A and 6A.

With the above insertion, the end 1a of the operating rod 1 and the lock piece 13 engage at right angles, and the lock piece 13 is moved by the cam action of the slope 17a, and the bent piece of the lock piece 13 is It bends against the elasticity of the 14 portion as shown in FIGS. 5B and 6B.

When the above-mentioned insertion is completed, the lock piece 13 faces the engagement hole 3 of the operating rod 1, and due to the elasticity of the bent piece 14, it is restored as shown in FIGS. 5C and 6C, and the engagement hole 3
inserted into and engaged.

As a result, the push button 5 is locked to the end portion 1a of the operating rod 1 by the metal piece 11, and the push button 5 will not accidentally fall off from the operating rod 1 thereafter.

Note that the lock piece 13 (I"i) is engaged with the engagement hole 3 in the state immediately before the fully restored state shown in FIGS. 5A and 6A, and in this engaged state, the lock piece 13 remains under a spring action. Because there is
No rattling occurs between the lock piece 13 and the operating rod 1.

Therefore, the push button 5 is securely fixed to the end portion 1a of the operating rod 1 without any play.

Note that when removing the push button 5 from the operating rod 1 due to necessity such as replacement of the push button 5, if the push button 5 is forcibly pulled from the operating rod 1 with a considerably strong force, the cam action on the slope 17b will be forcibly induced. , the lock piece 13 bends against the elasticity of the bending piece 14, and the lock piece 13 is removed from the engagement hole 3, so that the push button 5 can be forcibly removed from the operating rod 1.

Although the embodiments of the present invention have been described above, the push buttons referred to in the present invention are not limited to those shown in the embodiments, but include push buttons of other shapes and other types of buttons of various shapes. It includes.

Similarly, the metal piece can also be changed into various effective structures and shapes other than those shown in the embodiments.

As mentioned above, the present invention is based on the end part! The operating rod has an engaging hole in the center, and the proximal end is bent into a mako-shape, and then the proximal end is bent at a right angle to the proximal end. A uniquely shaped metal piece having a lock piece bent on the opposite side, and an insertion groove into which the end of the operating rod is inserted is provided on one side of the hollow part into which the metal piece is inserted, and The insertion groove is skillfully combined with a uniquely shaped synthetic resin push button which is provided with an insertion groove for the above-mentioned lock piece, which is provided perpendicularly across the center of the bicycle. , by inserting and fixing the metal piece into the center of the push button, placing the lock piece in the insertion groove, and inserting the end of the operating rod into the insertion groove of the push button. The end of the operating rod and the lock piece are engaged at right angles, and the elasticity of the lock piece is used to engage the lock piece into the engagement hole of the end of the operating rod. Since the operating rod and the push button are mechanically fixed extremely firmly to each other, it is extremely easy to attach the push button to the operating rod. The engagement hole provided at the end of the metal piece engages with the locking piece of the metal piece at right angles, and they are mechanically fixed very firmly, so after attaching the push button to the operating rod, ,
There is no chance that the push button will accidentally fall off from the operating rod due to aging of the metal piece, and its installation is extremely reliable.

In addition to its extremely strong fixing force, the metal locking piece engages in the engagement hole provided approximately in the center of the end of the operating lever, and the end of the operating lever! Since the central portion is stably fixed, only a metal piece U 1 (rlA) is required, and the number of parts and assembly steps are small, resulting in a very low cost.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is an exploded perspective view, Fig. 2 is a cross-sectional view of the push button attached to the operating rod, and Fig. 3 is Fig. 2 - Line sectional view, Figure 4 is the 2nd
Figure IV-IV line sectional view, Figures 5A to 5C are side views illustrating how to insert the push button into the operating rod, Figures 6A to 6
Figure C is an end view of Figures 5A to 5C. In addition, regarding the buttons used in the drawings, 1 is an operating rod, 3 is an engagement hole, 5 is a push button, 9a, 9b are insertion grooves, 11 is a metal piece, 13 (ri metal piece lock piece, 20 is a hollow Part, 21
is the insertion groove.

Claims (1)

[Scope of utility model registration request] The end part has an operating rod with an engagement hole in the center part, and the base end is bent into a mako-shape, and then the base end is bent at an X right angle. A metal piece having a lock piece bent on the side opposite to the base end part, and an insertion groove into which the end of the operating rod is inserted are provided on one side of the hollow part into which the metal piece is inserted, and a push button made of synthetic resin and having an insertion groove for the lock piece provided perpendicularly across the center of the insertion groove, and the metal piece is inserted into the center of the push button. By placing the lock piece in the insertion groove and inserting the end of the operating rod into the insertion groove of the push button, the end of the operating rod and the lock piece are The lock piece is engaged at right angles, and the elasticity of the lock piece is used to engage the lock piece in the retaining hole at the end of the operating rod, thereby fixing the operating rod and the push button to each other. The installation of the push button to the operating rod configured as follows is a device.