JPH0329508Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved hinge formed by connecting a mounting plate and a socket with a pair of links.

Conventionally, for this kind of thing,
As shown in Publication No. 25093 (Figure 3),
The two rings abutted against each other, making it impossible to open the ring at a wide angle, making it difficult to lubricate the pivot points, and making it easier to assemble by driving in the shaft pin.

This idea was developed in view of the above points.
By drilling a hole in the appropriate position of one link and making sure that the other link fits in the hole and hits the edge of the opening when the hinge is opened, the hinge The purpose is to provide a hinge that has a large opening angle and that facilitates lubricating and assembling the pivot joint.

The present invention will be described in detail below based on the illustrated embodiment. As shown in FIGS. 1 and 2, the front end of the mounting plate 1 on the socket 2 side,
The ends of a pair of links 3 and 4 are pivotally connected to the front end of the cup-shaped socket 2 near the mounting plate 1 by shaft pins 5, 5', 6, and 6', respectively. , due to the pivoting of the links 3 and 4, when in the closed state as is known, the front end of the mounting plate 1 and both links 3 and 4
is stored in socket 2 as shown in Figure 1,
On the other hand, in the open state, both links 3 and 4 can straddle the front end of the socket 2 and open to a wide angle as shown in FIG. Axial pin 5, 5', 6,
As shown in FIG. 2, the positions of 6' are displaced from each other by appropriate dimensions in the vertical and front-back directions, respectively. The mounting plate 1 is fixed to the inside of the door mounting frame 7 with screws via the base plate 1a as shown in FIG. 2, and the socket 2 is fitted into a recess 8a provided on the inner surface of the door 8. After fitting, by attaching it to the door 8 with screws, the door 8 can be attached so that it can be opened freely like a conventional hinge of this type.

At the front end of the mounting plate 1, the first link 3, which is pivoted near the tip and is arranged outward, is located on both left and right sides of the end of the plate-like member, as shown clearly in FIG. curl part 3a,
3a, 3b, 3b, and is formed with a fairly large width, while the second link 4, which is pivoted on the rear end side, is as clearly shown in FIG.
The thickness of the plate member is arranged in the horizontal direction, the width is in the vertical direction, and the shaft holes 4a, 4b are bored in the thickness direction at the ends protruding in the vertical direction, so that it is formed into a flat plate shape. The first link 3 is formed to have a sufficiently wider axial width than the second link 4, and
The link 4 is arranged approximately at the center of the width of the first link 3.

In the present invention, the first link 3 is provided with an angular opening 9 in the center near the socket 2, so that when the hinge is fully opened, the second link 4 is pivoted on the socket side. The portion 4' is fitted into the opening 9, and the pivoting portion 4' is configured to abut against the mouth edge 10 on the upper side of the opening 9.

In the illustrated example, a spring 12 with a roller 11 pivotally supported at the upper part of the front end of the mounting plate 1 near the rear end is supported by a pin 13, and the roller 11 is supported by the elastic force of the spring 12. Therefore, by abutting against a corner 4c provided at one end of the second link 4, the hinge is maintained in the closed and open states.

As explained above, the present invention connects the mounting plate 1 attached to the door attachment frame 7 via the base plate 1a and the socket 2 attached to the recess 8a of the door 8 with a pair of links 3, 4, of the links 3 and 4, the first link 3, which is pivoted near the tip of the front end on the socket 2 side of the mounting plate 1, is
The second link 4 is formed with a width larger than that of the second link 4 which is pivoted near the rear end of the front end.
Link 3 has the above-mentioned second position when the hinge is fully opened.
The socket side pivot portion 4' of the link 4 is inserted,
Since the opening 9 that contacts the mouth edge 10 is formed, when the hinge is fully opened, the pivot portion 4' of the second link 4 does not come into contact with the surface of the first link 3 and the opening 9 is opened. 9, thus making it possible to widen the degree of expansion of the hinge, and making it easy to lubricate deep parts such as the pivot portion 4' through the opening 9.
When assembling the hinge, the first and second links 3 and 4 are brought into the fully open state of the hinge by pressing the socket-side pivot portion 4' against the mouth edge 10 of the opening 9 as described above. Therefore, while maintaining this state, if one end of the first and second links 3, 4 is mounted on the mounting plate 1, and the other end is mounted on the socket 2, each shaft pin 5, 6 can be positioned. ,5',
Hole alignment when driving the 6' becomes easy, and the work can be carried out efficiently without requiring any skill.

[Brief explanation of drawings]

Figures 1 and 2 are longitudinal side views showing the hinge according to the present invention in the closed and opened states, respectively; It is a perspective view showing a link and a second link. DESCRIPTION OF SYMBOLS 1... Mounting plate, 1a... Base plate, 2... Socket, 3... First link, 4... Second link, 4'... Socket side pivot portion of second link, 7... ...Door mounting frame, 8...
Door, 8a...recess, 9...doorway, 10...mouth edge of doorway.

Claims (1)

[Scope of utility model registration request] In a hinge formed by connecting a mounting plate attached to a door mounting frame via a base plate and a socket attached to a recess of the door with a pair of links, the mounting plate of the above-mentioned links A first link pivotally mounted near the tip of the front end on the socket side is formed to have a larger width than a second link pivotally mounted near the rear end of the front end. The hinge has a hole in which the socket-side pivot portion of the second link fits into the link and comes into contact with the mouth edge when the hinge is fully opened.