JPH048215Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to a hinge consisting of two link plates and four pins.

[Conventional technology]

In recent years, hinges consisting of two link plates and four pins have been widely used because they have a simpler structure than hinges consisting of three or more link plates, but they have the following structural disadvantages: .
That is, in the case of a hinge consisting of two link plates and four pins, the plate surfaces of the two link plates are curved and arranged vertically parallel to the radial direction of the pins, so when fully opened, , the plate surfaces of the link plates collide with each other and the degree of opening cannot be increased. Moreover, since the plate surface of the link plate is oriented in the radial direction of the pin, there is a problem in the durability of the link plate. That is, during opening and closing, the plate surface of one link plate is subjected to tension, and the plate surface of the other link plate is subjected to compression. This tension and compression is greatest when the link plates are partially parallel. Moreover, the link plate has lower strength in compression than in tension, and easily undergoes plastic deformation or breakage. In addition, if the link plate is opened too much, both link plates may be compressed and bent and deformed using the colliding portion of the link plates as a point of action. By the way, in order to increase the degree of opening of the hinge, a system in which two link plates are arranged side by side in the axial direction of the pin has been proposed in Japanese Utility Model Application Publication No. 50-54462.

[Problem that the idea aims to solve]

However, like the hinge, the plate surface of each link plate is curved and oriented in the radial direction of the pin, so there is a problem in the durability of the link plate. Moreover, in order not to increase the width of the pin in the axial direction (hereinafter referred to as plate width), the plate width of the link plate is reduced to about 1/2 or less, which reduces the strength of the link plate against plastic deformation and cutting. In addition, in order to reduce the plate width, two link plates are arranged vertically in the radial direction of the pin.
Although it is proposed in Registered Design No. 448789,
In this structure, the plate width is reduced by reducing the plate width of each link plate. Therefore, it is not possible to increase the degree of opening of the slide hinge, and there is also a problem in the strength of the link plate. In view of the conventional circumstances mentioned above, the present invention is a hinge that can increase the degree of opening of the slide hinge, improve the durability of the link plate against tension and compression, and also reduce the width of the hinge plate. This is what we propose.

[Means to solve the problem]

The present invention for solving the above problems is such that two link plates are formed with each plate surface in a flat plate shape, and are arranged side by side with each plate surface facing in a direction intersecting the axial direction of each pin. The link plate is formed with a plate surface having a dogleg shape and a U shape that protrude toward both mounting members, and bearing holes are provided at both ends of the dogleg and U shape on each plate surface, so that each pin can be inserted into the link plate. It is characterized by being pivotally mounted at different positions.

[Effect]

Each link plate has flat plate surfaces located in separate planes aligned in the axial direction of the pin, and both ends of the dogleg-shaped and U-shaped contours of the plate surfaces are pinned at different positions in the upper, lower, right, and left directions. When the door is opened and closed, each link plate crosses the pin axis direction in separate planes, and the door is opened and closed without colliding with each other. Furthermore, tension and compression during opening and closing are borne in the direction of the dogleg and U-shape contours of the plate surface.

【Example】

An embodiment of the hinge of the present invention will be described below with reference to FIGS. 1 to 4. As shown in the first diagram, one mounting member 1 of the hinge A is embedded and fixed in the upper and lower parts of the base side of the door C, and the other part of the hinge A is embedded in the upper stile b1 and the lower stile b2 of the frame B. The mounting members 2 are fixed respectively. Both the above mounting members 1 and 2 have two link plates 3,
4 and four pins 5, 6, 7, and 8 so as to be openable and closable. Further, an engagement member d1 of a door catch D is fixed to the upper part of the free end side of the door, and an engagement hole d2 is opened in the upper stile b1 of the frame B. As shown in the second diagram, one mounting member 1 of adjustment A
is equipped with an oval-shaped mounting part 10, and one half of the longitudinal direction of the mounting part 10 is a block 11, and this block 11 has mounting grooves 12 and 13 for separately fitting the two link plates 3 and 4. engraved. As shown in the third figure, one pin 5 passes through only one mounting groove 12, and the other pin 6 passes only through the other mounting groove 13. Further, as shown in FIG. 4, one pin 5 is located lower than the other pin 6, that is, closer to the surface of the door C, and further away from the other mounting member 2 than the other pin 6. Furthermore, as shown in the second figure, the other half of the mounting portion 10 in the longitudinal direction is a concave storage chamber 14, into which the mounting grooves 12 and 13 are respectively opened. Attachment pieces 15, 15 are horizontally protruded from both sides of the upper part of the attachment part 10,
One of the mounting members 1 is fixed to the door C using mounting screws E through the countersunk holes 16 of each mounting piece 15 (see FIG. 1). The other mounting member 2 includes a horizontal mounting piece 20 as shown in the second figure, and this mounting piece 20 has a countersunk hole 21 and a keyhole-shaped mounting hole 22.
Therefore, as shown in the fourth diagram, the mounting piece 20
by applying the bottom surfaces of the frame B to the front surfaces of the upper stile b1 and lower stile b2, and screwing the mounting screws F through the countersunk holes 21 and mounting holes 22 toward the upper stile b1 and lower stile b2. A mounting member 2 is fixed to the frame B. Further, as shown in the second figure, a support piece 23 is raised on one side of the mounting piece 20, and this support piece 23 has a size that can be stored in the storage chamber 14. Mounting holes 24 and 25 are bored for separately fixing the two pins 7 and 8. One pin 7 projects horizontally to the opposite side of the mounting piece 20, and the other pin 8 projects horizontally to the same side of the mounting piece 20. The axes of both pins 7 and 8 are substantially parallel. One pin 7 above is the other pin 8
It is located above the door, that is, on the door C side. The one link plate 3 has a plate surface 30 having a flat plate shape, and the other link plate 4
is provided with a plate surface 40 exhibiting a flat plate shape. The plate surface 30 of one of the link plates 3 has a substantially doglegged outline, and bearing holes 31 and 32 are bored at both ends of the doglegged shape, respectively. The plate surface 40 of the other link plate 4 has a substantially U-shaped outline, and bearing holes 4 are provided at both ends of the U-shape.
1,42 is pierced. Next, the assembly of the hinge A having the above structure will be explained. One end of one link plate 3 is plate surface 3
0 is fitted along the mounting groove 12, the bearing hole 31 and the mounting hole 17 are brought together, and the pin 5 is inserted into the mounting hole 1.
7 into the bearing hole 31. At the other end of one link plate 3, the plate surface 30 is aligned with the plate surface of the support piece 23 so that the bearing hole 32 and the mounting hole 24 meet, and then the pin 7 is inserted from the bearing hole 32 into the mounting hole 24. At this time, a ring-shaped collar 50 is interposed between one link plate 3 and the support piece 23. The other link plate 4 is also rotatably fixed to both mounting members 1 and 2 by pins 6 and 8 at both ends, similarly to the one link plate 3 described above. As a result, the two link plates 3 and 4 are arranged side by side in the axial direction of the pin with the support piece 23 and the spacer block 19 in between, and are connected so as to be openable and closable. Now, when the door C is closed, a part of the support piece 23 and a part of the two link plates 3 and 4 are stored in the storage chamber 14 as shown by the solid line in FIG. Note that reference numeral G is a sealing member interposed between the door C and the frame B, and this sealing member G is made of an elastic material and is fixed to the back surface of the door C. When the door is opened as shown in FIG.
4, the door C moves from the position shown by the solid line to the position shown by the imaginary line in FIG. 4, and the door C is opened. At this time, one pin 5 moves on the dashed line 11 as the door is opened. Further, the other pin 6 moves on the dashed line 12. Then, the two link plates 3 and 4 move to the positions shown by the imaginary lines, so that the back surface part c of the door C located on the sealing member G side and the upper end part 1a of one of the mounting members 1 are U-shaped inner recessed part 3 of link plate 3
3 and the other link plate 4 are located in the dogleg-shaped inner recessed portions 43. On the other hand, according to the above-described configuration, one link plate 3 is coupled to one mounting member 1, and the movable pin 5 that moves on the imaginary line 11 when the door is opened is connected to the other mounting member 1. A fixed pin 7 that is connected to the member 2 and serves as the center of rotation when the door is opened.
is not located within the movement locus of the other link plate 4. Further, the movable pin 6 that connects the other link plate 4 to one of the mounting members 1 and moves on the imaginary line 12 when the door is opened is not located within the movement locus of one link plate 3. Moreover, one link plate 3 and the other link plate 4 move in separate planes aligned in the axial direction of the pin 5. As a result, both link plates 3 and 4 do not collide with each other when the door is opened and closed, and one link plate 3 crosses the axial side of the pin 6 related to the other link plate 4, and the other The link plates 4 cross over the axial sides of the pins 5 and 7 related to one link plate.
Therefore, the degree of opening is larger than that of the conventional one. Further, according to the embodiment, the plate surfaces 30 and 40 of both the link plates 3 and 4 are connected to the pin 5, respectively.
-8, the strength of both link plates 3, 4 against tension and compression is improved. Moreover, both link plates 3 and 4
Even if the plate thickness of the slide hinge A is made thicker than the conventional plate thickness, the plate width of the slide hinge A becomes smaller. By the way, in the above embodiment, since the slide hinge A is fixed to the upper stile b1 and the lower stile b2 of the frame B, the slide hinge A cannot protrude into the storage chamber H of the frame B. As a result, the storage chamber H of the frame body B can be widely used. Another embodiment of the invention will be described in detail with reference to FIGS. 5 and 6. The other mounting member 2A of the hinge A of this other embodiment is fixed to the side wall I of the storage chamber H of the frame B via a mounting seat J. One mounting member 1A
is fixed to the back surface of the door C, and is arranged in front of the other mounting member 2A when the door is opened. The other mounting member 2A is elongated and has a U-shape in cross section, and support pieces 23A and 23B are extended from the front ends of opposing side walls 26 and 26, respectively. One link plate 3 has a flat plate surface 30A having a doglegged outline on one support piece 23A.
One end of A is rotatably connected to the pin 7A, and the other end of the one link plate 3A is rotatably connected to one of the mounting members 1A by a pin 5A. Flat plate surface 40A with U-shaped outline
One end of the link plate 4A is rotatably coupled to the other support piece 23B with a pin 8A, and the other end of the link plate 4A is rotatably coupled to one mounting member 1A with a pin 6A. . Therefore, according to this modification, both mounting members 1A, 2
A and the two link plates 3A, 4A without fundamentally changing the basic structure of the assembly of the hinge A.
By changing the four pins 5A to 8A,
Easy to implement. The attachment hole 2 is not provided with the other support piece 23B in the other link plate 2A in the other example above.
4A in one support piece 23A, and two link plates 3A on both sides of this one support piece 23A.
It is also possible to install 4A. Pins 5 to 8, 5A to 8 in each of the above embodiments
A may be screwed onto each mounting member 1, 2, 1A, 2A. Spacer block 19 in each of the above embodiments,
19A may not be provided. In this case, mounting groove 1
2, 13, 12A, and 13A are connected together.
In this case, the heads of the pins 5, 6, 5A, 6A are formed with a large diameter, and the links plates 3, 4,
3A and 4A should be prevented from coming off. In order to attach the pin having this head to the mounting hole, the mounting hole 17,
18, 17A, 18A, a through hole is drilled in the block through which the head of the pin passes, and the pin is inserted through the through hole into the mounting hole 17, 18, 17A, 18A.
It should be installed on.

[Effect of the idea]

As explained above, the present invention has the following effects. (a) Since the interlocking movement of one link plate is not restricted by the pin related to the other link plate, and the link plates are arranged side by side in the axial direction of the pin, the degree of opening of the hinge can be increased. (b) Since the flat plate surfaces of the two link plates are crossed by the pins and the contours of the plate surfaces are oriented in the opening/closing direction, the strength of each link plate against tension and compression can be improved. (c) As a result of the above structure (b), the width of the hinge can be reduced while improving durability. (d) Since the link plate can be formed by punching with a press, a highly reliable hinge can be provided at low cost without changing the simplified basic structure consisting of two link plates and four pins.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway perspective view of the door with the hinge of the present invention installed, Figure 2 is an exploded perspective view of the hinge of the present invention, and Figure 3 is the same. FIG. 4 is a plan view of the hinge in the assembled and open state; FIG. 4 is a sectional view taken along line IV-IV in FIG. 1 with the door closed;
5 and 6 show other embodiments of the present invention, in which FIG. 6 is a perspective view corresponding to FIG.
The figure is a sectional view corresponding to FIG. 4. A... Hinge, B... Frame, C... Door, 1... One hinge member, 2... Other hinge member, 3... One link plate, 4... Other link plate, 5- 8, 7A, 8A... Pin, 37... Locking shaft, 30, 30A, 40, 40A... Plate surface.

Claims (1)

[Claims for Utility Model Registration] In a hinge in which one mounting member fixed to the door and the other mounting member fixed to the frame are connected so as to be openable and closable by two link plates and four pins, two The link plates are formed with each plate surface in a flat plate shape, and are arranged in parallel with each plate surface facing in a direction intersecting the axial direction of each pin,
Each of the above-mentioned link plates has a plate surface having a dogleg shape and a U shape that protrude toward both mounting members, and bearing holes are provided at both ends of the dogleg and U shape on each plate surface. A hinge characterized in that the pins are pivoted at different positions.