JPH0453427Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a slide-out type hinge in which a pivot pin fixed to a stationary wing plate is inserted into a shaft hole of a rotating wing plate.

(Prior Art) In a conventional slide-out type hinge, the knurling groove 9 provided on the circumferential surface of the lower end of the pivot pin 4 is engaged with the inner circumferential surface of the shaft hole of the stationary wing plate 1, as shown in FIG. ,
A pivot pin 4 is fixed to the fixed wing plate 1.

(Problem that the invention attempts to solve) However, with such a slide-out type hinge, there is an error in the mounting dimension position when installing the door, so the upper end of the pivot pin 4 must be inserted into the insertion opening of the shaft hole of the rotating wing plate. When the pivot pin 4 is inserted by hitting the rotary side wing plate after the abutment, a downward force is applied to the pivot pin 4, and as a result, the fixation due to the biting of the knurling grooves 9 is released, and the pivot pin easily falls off.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a slide-out type hinge in which there is no fear that the pivot pin will fall off even if a vertical force is applied to the pivot pin.

(Means for Solving the Problems) The gist of the present invention will be explained below using reference numerals in the attached drawings. In a sliding type hinge consisting of a plate 2 and a pivot pin 4 that is fixed to the shaft hole 3a of the fixed side wing plate 1 and inserted into the shaft hole 3b of the rotating side wing plate 2, the inside of the shaft hole 3a of the fixed side wing plate 1 is The purpose is to prevent the pivot pin 4 from falling off by means of a stopper step 5 formed at the lower end of the pivot pin 4 and a caulking section 6 formed at the lower end of the pivot pin 4 and engaged with the outer edge of the shaft hole 3a.

(Function) When attaching the door to the fixed frame body, that is, when inserting the pivot pin 4 fixed to the fixed wing plate 1 into the shaft hole 3b of the rotating wing plate 2, the pivot pin 4 and the shaft hole 3b
If there is an error in the position, after matching the upper end of the pivot pin 4 and the lower end of the shaft hole 3b,
You will have to hit it and insert it.

Due to this impact, a downward force is applied to the pivot pin 4, but the shaft hole 3a of the fixed wing plate 1 is
The retaining step 5 formed in the pivot pin 4 resists the upward force, and the caulking part 6 formed at the lower end of the pivot pin 4 resists the upward force, so the pivot pin 4 falls off. Never.

(Embodiment) In the illustrated embodiment, bearing cylinder portions 7a and 7b are protruded from each side end of the fixed side blade plate 1 and the rotating side blade plate 2, and the shaft holes 3a and 3b are circular through holes with the same diameter. It is a hole. In the shaft hole 3a of the fixed wing plate 1, the diameter of the portion below the collar-shaped retaining step portion 5 is reduced.

The pivot pin 4 includes a lower end small diameter portion 8 that engages with the retaining stepped portion 5, and the caulking portion 6 is provided at the tip of the lower end small diameter portion 8. The caulking part 6
This is formed by enlarging and deforming the cylindrical portion of the lower end small diameter portion 8 that slightly protrudes from the lower end of the shaft hole 3a using a caulking tool.

Incidentally, a knurled line 9 is formed in a portion of the pivot pin 4 that contacts the upper part of the shaft hole 3a, and prevents the pivot pin 4 from rotating within the shaft hole 3a.

(Effects of the invention) As described above, in the present invention, the retaining step 5 formed in the shaft hole 3a of the fixed wing plate 1 and the retaining step 5 formed at the lower end of the pivot pin 4 to engage with the outer edge of the shaft hole 3a. Since movement of the pivot pin 4 is prevented by the caulking portion 6, the slide-out type hinge of the present invention can be used stably without fear of the pivot pin falling off.

[Brief explanation of the drawing]

Fig. 1 is a front view of a slide-out type hinge according to an embodiment of the present invention in an exploded state, Fig. 2 is a bottom view of the hinge, and Fig. 3 is the A of Fig. 1 before the crimped portion of the hinge is formed. 4 is a longitudinal sectional view of the hinge after the crimped portion is formed. FIG. 5 is a longitudinal sectional view of a conventional slide-out type hinge. 1... Fixed side wing plate, 2... Rotating side wing plate, 3a,
3b... shaft hole, 4... pivot pin, 5... retaining step, 6... caulking part, 7a, 7b... bearing cylinder part,
8...lower end small diameter section, 9...knurling stitch.

Claims (1)

[Scope of utility model registration request] A fixed side wing plate 1 fixed to a fixed frame body, a rotating side wing plate 2 fixed to a door, and a shaft hole 3 of the fixed side wing plate 1
a and a pivot pin 4 that is inserted into the shaft hole 3b of the rotating wing plate 2, and a retaining step 5 formed in the shaft hole 3a of the fixed wing plate 1, A slide-out type hinge that prevents the pivot pin 4 from falling off by a caulked portion 6 that is formed and engages with the outer edge of the shaft hole 3a.