JPH0447753B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a vertically opening/closing hinge in which a hinge main body and a socket are connected via two arms so as to be relatively rotatable and relatively flexible. , which is improved so that it can stand still at any opening angle.

[Conventional technology]

A hinge in which a hinge main body and a socket are relatively rotatably and relatively bendably connected via a plurality of arms is disclosed in Japanese Utility Model Application No. 59-117770 and Japanese Utility Model Application No. 59
-173870 and other known documents.

The hinge of the above-mentioned known example has a built-in spring or the like in order to maintain the open/closed state of the opening/closing door or the opening/closing lid, and is highly convenient as it has these functions.

[Problem to be solved by the invention]

However, when the above-mentioned known hinges are used as hinges for vertically opening/closing doors and vertically opening/closing lids found in cabinets, cases, etc. of office automation equipment, these opening/closing doors and lids can be stopped at any opening angle. It is difficult to do so.

As a means of dealing with this, the cabinet (case)
Generally, a stay or other door support mechanism (lid support mechanism) is provided between the opening/closing door (opening/closing lid), but since this requires a separate mechanism, there are disadvantages and disadvantages in terms of configuration and assembly. There is an economy involved, and in terms of operation, there is also the hassle of hooking and removing the stays.

In addition, as a spring in the hinge of the above-mentioned known example,
It is conceivable to use a spring with a large spring constant, but in such a case, due to the large built-in spring, it is unavoidable to increase the size of the hinge, including the durability of the parts. It is also difficult to balance the weight of the opening/closing lid with the force of the spring.

In view of such technical problems, the present invention avoids increasing the size by assembling two springs in the hinge for applying rotational force in the opening direction, and allows the opening/closing door and lid to be opened in any desired direction. The purpose is to provide a hinge that can be opened and closed vertically and can be stopped at an angle.

[Means to solve the problem]

In order to achieve the intended purpose, the present invention comprises a main body and a socket that form a pair for a hinge, and the main body has an extending portion formed on the connecting end side thereof, and a distal end of the extending portion. a first axle pin attached to the
A second shaft pin is attached at a position farther from the connecting end of the main body than the first shaft pin, and the socket has an extending portion formed on the connecting end side of the second shaft pin, and It has a third axis pin attached to the tip, and a fourth axis pin attached at a position farther from the connection end of the socket than the third axis pin, and these main body and socket are connected to the second axis pin. a first arm extending from a third axis pin;
The socket is connected to the second arm extending from the shaft pin to the fourth shaft pin so as to be relatively rotatable and relatively bendable, and the direction in which the socket rises and rotates with respect to the main body is the opening direction of the hinge. In a vertically opening/closing hinge whose reverse rotational direction is the closing direction of the hinge, the first spring for applying a rotational force in the opening direction to the socket is the fourth spring.
The first spring is held by a support pin provided near the fourth axle pin on the axle pin or socket, one end of the first spring is latched to the socket, and the first end of the first spring is A second spring whose other end is locked to either the longitudinally intermediate portion of the second arm or near the extension portion of the main body, and which applies a rotational force in the opening direction to the first arm. is held via a support pin attached to the main body with an axial distance from the second axle pin, and one end of the second spring is connected to the second axle pin side of the first arm. The end portion or the end portion of the second arm on the first shaft pin side is locked by either direct locking or indirect locking via a rotational transmission member, and the second spring The other end is latched onto the main body.

[Effect]

In the case of the hinge according to the present invention, the main body is attached to an opening/closing part of a cabinet, case, etc., and the socket is attached to a rotating member such as a vertical opening/closing door or a vertical opening/closing lid.

In the above, the weight of the rotating member generates a torque that rotates the socket downward, but an upward torque that resists this torque is generated via the first and second springs built into the hinge, and these The weight of the rotating member and the forces of both springs are balanced with each other at any opening angle.

Therefore, when using the hinge of the present invention, the rotating member can be held at any opening angle from the fully open state to the fully closed state.

〔Example〕

Embodiments of the hinge according to the present invention will be described with reference to the drawings.

Figures 1 and 2 show the first embodiment of the hinge of the present invention.
In the figure, a hinge main body 1 and a hinge socket 2 are arranged relative to each other with their connecting ends facing each other.

An extending portion 1b is formed on the connecting end side of the main body 1 integrally with both side plate portions 1a of the main body 1, and a socket 2
An extending portion 2b is also formed integrally with the cup portion 2a of the connecting end.

Each shaft pin for connecting the main body 1 and the socket 2 in a relatively rotatable and relatively flexible manner is attached at the following positions.

That is, in the main body 1, the first shaft pin 6
is attached to the tip of the extending portion 1b, the second axle pin 5 is attached at a position farther from the connection end of the main body 1 than the first axle pin 6, and in the socket 2, the third axle pin 7 is attached to the tip of the extending portion 2b, and the fourth axle pin 8 is attached at a position farther from the connecting end of the socket 2 than the third axle pin 7.

The main body 1 and the socket 2 have a first arm 3 extending from the second axial pin 5 to the third axial pin 7 and a first arm 3 extending from the first axial pin 6 to the third axial pin 7 in the above-described embodiment in which their connecting ends face each other. The second across the axial pins 8 of 4
It is connected to the arm 4 in a relatively rotatable and relatively bendable and extensible manner.

In this case, the first arm 3 and the second arm 4 have a substantially V-shaped, substantially concave bent shape, as shown in FIGS. 1 and 2, in order to increase the opening angle of the hinge. There is.

In the hinge in which the main body 1 and the socket 2 are connected to each other in this manner, the direction in which the socket 2 stands up and rotates with respect to the main body 1 is the opening direction of the hinge, and the reverse rotation direction thereof is the closing direction of the hinge.

1 and 2, in the main body 1, an arm-shaped catch holder 17 is disposed adjacent to one end side of the first arm 3 (second shaft pin 5 side), and the fulcrum of the catch holder 17 is The end (upper end) of the catch holder 17 is rotatably connected via a fifth shaft pin 16, and a moving pin 18 is attached to the free end (lower end) of the catch holder 17.

1 and 2, a cam mechanism 20 mainly consisting of a cam plate 20a having a cam surface 20b is attached to the outer periphery of the second shaft pin 5. As shown in FIGS.

The cam plate 20a of the cam mechanism 20 rotates together with the first arm 3 and corresponds to the movable pin 18 of the catch holder 17 so as to be able to come into contact with it.

The catch holder 17, the cam plate 20a of the cam mechanism 20, and the like serve as rotation transmission members when the first arm 3 applies a rotational force in the opening direction.

1 and 2, a support pin 15 for supporting a spring 13, which will be described later, is provided approximately at the center of the main body 1 in the longitudinal direction.
A fixing pin 19 for locking the other end 13b of the spring 13 is provided on the opposite end side of the connecting end.
is provided.

Further, a locking pin 14 for locking the other end 12b of another spring 12, which will be described later, is provided on the extending portion 1b of the main body 1 adjacent to the first shaft pin 6. A locking hole 2c for locking one end 12a of the spring 12 is provided in the cup portion 2a.

1 and 2, a first spring 1 for applying a rotational force in the opening direction to the socket 2
2 consists of a torsion spring whose entire body is bent into a crank shape, and has a coil winding part in the middle of the lengthwise direction and a winding part at the other end 12b.

In FIGS. 1 and 2, the second spring 13 for applying a rotational force in the opening direction to the first arm 3 is also made of a torsion spring bent into a V-shape.

In FIGS. 1 and 2, the first spring 1
2, the coil winding part in the middle part is connected to the fourth shaft pin 8.
It is held by being fitted into the outer periphery of the
One end 12a thereof is fitted into the locking hole 2c of the cup portion 2a, and the other end 12b is locked to the outer periphery of the locking pin 14.

In FIGS. 1 and 2, the second spring 1
3 has a coil winding part in the middle part fitted into the outer periphery of the support pin 15 and held therein, and one end 13a of the coil winding part in the middle part thereof is held by the movable pin 1 of the catch holder 17.
8, and the other end 13b is held in contact with the fixing pin 1.
It is held in contact with 3b.

Thus, the first spring 12 applies a rotational force in the opening direction to the socket 2 using the fourth shaft pin 8 as a fulcrum, and the second spring 13
is the catch holder 1 using the support pin 15 as a fulcrum.
The first arm 3 is applied with a resilient force in the clockwise direction as shown in FIGS. A rotational force in the opening direction is applied to the

For example, when attaching an opening/closing body 10 such as a door or a lid to the cabinet 9 using the hinge of the first embodiment described above, as illustrated in FIGS. 1 and 2, the side plate 9a of the main body 1 is It is screwed to the inner surface of the side plate 9a of the cabinet 9, and the cup portion 2a of the socket 2 is screwed to the inner wall surface of the opening/closing body 10.

The opening/closing body 10 attached to the cabinet 9 in this manner can be opened and closed up and down based on the function of the hinge.

At this time, a torque is generated due to the weight of the opening/closing body 10, but a force resisting this torque is applied to the socket 2 via the first spring 12.

Further, since the clockwise force of the second spring 13 is transmitted to the cam plate 20a of the cam mechanism 20 via the catch holder 17, the first arm 3 rotating integrally with the cam plate 20a has a force in the opening direction. A rotational force is applied, which in turn becomes a force on the socket 2 that resists the above-mentioned torque.

Since the torque due to the weight of the opening/closing body 10 and the force of both springs 12 and 13 are balanced with each other, the opening/closing body 10 can be held at any opening angle from the fully open state to the fully closed state.

FIG. 8 shows the opening/closing body 10 as shown in FIG.
When the opening/closing body 10 is opened to an opening angle of 0 degrees (substantially opening angle of 9.5 degrees), the opening/closing body 10
When the opening and closing body 10 is opened to an opening angle of 50 degrees (actual opening angle of 59.5 degrees), and the opening and closing body 10 is opened to an opening angle of 90 degrees (actual opening angle of 99.5 degrees), the opening and closing body 10 has an opening angle of 108.5 degrees as shown in Fig. 2. (Actual opening angle 118 degrees)
The torque characteristic curves are shown when the vehicle is opened to the maximum.

The load W on the opening/closing body 10 described above acts as shown by the arrow in FIG. 1 when the door is closed and FIG. 2 when the door is open.

The torque due to the own weight of the opening/closing body 10 gradually increases from the opening angle of -9.5 degrees and reaches its maximum value at the opening angle of 10 degrees, as shown by curve a in FIG. The minimum value is in degrees.

On the other hand, the torque applied to the socket 2 via the first spring 12 is expressed by the curve c in FIG.
become that way.

Therefore, in order to balance both torques, the ideal torque curve d shown in FIG. 8, which is expressed as the difference between curves a and c described with reference to FIG.
The torque should be the same as .

In this case, for example, the specifications of the cam surface 20b of the cam plate 20a may be determined so that the torque applied to the socket 2 by the second spring 13 satisfies the above curve d.

Of course, in this case, since friction and other resistances are applied to the pivot points of the arms 3 and 4, the hinge performs its predetermined function even if it does not completely match the ideal torque curve d.

Regarding both of these springs 12 and 13, the second spring 13 compensates for the lack of torque caused by the first spring 12, and with this technical means, the torque applied to the socket 2 is adjusted to the torque curve a of the opening/closing body 10. Since it approximates, the opening/closing body 10 can be made to stand still at a free opening angle.

3 and 4 show a second embodiment of the hinge of the present invention.

The hinge of the second embodiment is different from the first embodiment in that the other end 12b of the first spring 12 is locked in a locking hole 4a provided in the second arm 4. , and others are substantially the same as those of the first embodiment.

FIG. 5 shows a third embodiment of the hinge of the invention.

In the hinge of the third embodiment, the cam mechanism 20, catch holder 17, etc. of the first embodiment are omitted, and instead, an extension portion 3a having a catch pin 21 is provided at one end (right end) of the first arm 3. One end 13a of the second spring 13 is abutted and locked to the catch pin 21, and the rest is as follows.
This is substantially the same as that of the first embodiment.

In the case of the third embodiment, the torque applied to the socket 2 is as shown in the torque curve b in FIG. 8.

Although this torque curve b partially differs from the ideal torque curve d described above, this is to the extent that it does not pose a problem in practical use.

FIG. 6 shows a fourth embodiment of the hinge of the present invention.

In the hinge of the fourth embodiment, the other end 12b of the first spring 12 is locked to the second arm 4 similarly to the second embodiment, and one end 13b of the second spring 13 is fixed to the second arm 4. As in the third embodiment, it is abutted and locked to the catch pin 21 on the extending portion 3a side of the first arm 3, and the rest is substantially the same as in each of the foregoing embodiments.

FIG. 7 shows a fifth embodiment of the hinge of the present invention.

In the case of the fifth embodiment, the above-mentioned catch holder 17 having the movable pin 18 is pivoted in the extending portion 1b of the main body 1 via the fifth shaft pin 16 in the opposite direction to that in the first embodiment. At the same time, the above-described cam mechanism 20 mainly consisting of the cam plate 20a is attached to the outer periphery of the first shaft pin 6, and the second spring 13 is shifted to a position corresponding to the catch holder 17. are doing.

In such a fifth embodiment, the first spring 12
The other end 12b is locked to the second arm 4, one end 13b of the second spring 13 is held in contact with the catch holder 17, and the movable pin 18 is locked to the cam surface 20b of the cam plate 20a. are in contact.

Other matters in the fifth embodiment are substantially the same as in each of the embodiments described above.

In the case of the hinge of the present invention, as is clear from the above description, any structure can be adopted as the holding or supporting means for both springs 12 and 13 as long as a predetermined torque can be generated in the socket 2 and the first arm 3. As these springs 12 and 13, springs other than torsion springs and coil springs can be used.

When summarizing the above contents, the following can be said.

The sum of the torques generated in the socket 2 and the first arm 3 may be smaller than the torque due to the own weight of the opening/closing body 10 in the state shown in FIG. 1 when the opening/closing body 10 is closed.

The reason for this is, as is obvious, that the torque due to the own weight of the opening/closing body 10 acts in the closing direction of the opening/closing body 10,
This is because the opening/closing body 10 is maintained in a closed state.

As the opening/closing body 10 in the closed state is opened, the sum of the torques applied to the socket 2 and the first arm 3 gradually increases as the torque of the opening/closing body 10 increases as shown by curve a in FIG. Then, as the opening/closing body 10 is further opened and the torque gradually decreases, the sum of the torques of the socket 2 and the first arm 3 also gradually decreases.

That is, the sum of the torques generated in the socket 2 and the first arm 3 changes according to the torque change on the opening/closing body 10 side as the opening degree of the opening/closing body 10 changes, and as a result, the opening/closing operation of the opening/closing body 10 changes. Since it is balanced, the opening/closing body 10 such as an opening/closing door or opening/closing lid
can be opened and closed up and down easily, and the opening/closing body 10 can be stopped at a desired opening angle.

〔Effect of the invention〕

As explained above, the hinge according to the present invention has the following effects.

Even if the weight of the opening/closing body attached to the socket side of the hinge generates a torque that rotates it downward, the upward torque that resists the torque is generated through the first and second springs built into the hinge. The weight of the opening/closing body and the force of both springs balance each other at any opening angle, so the opening/closing body can be held at any opening angle from fully open to fully closed. Increased convenience as an opening/closing hinge.

Since the main body and the socket including the relatively rotatable and relatively flexible connecting means are provided with not only the first spring but also the second spring, the above-mentioned opposing force that is difficult to generate with the first spring alone is provided. The torque can be supplemented by the second spring, and therefore it becomes easy to correspond to the torque on the opening/closing body side that changes depending on the opening angle.

Since the required torque is generated not by a single spring but by the first, second, and two springs, these individual springs do not become large;
The related parts to which this is assembled do not need to be enlarged for reinforcement, and since they are two springs that do not become large, they can be assembled easily by using the extra internal space between the main body and the socket. , Therefore, it is possible to avoid increasing the size of the hinge.

[Brief explanation of drawings]

FIGS. 1 and 2 are cross-sectional views of the hinge of the present invention in the closed and open states according to the first embodiment, and FIGS. 3 and 4 are the hinges of the present invention in the closed state of the second embodiment of the present invention. 5 to 7 are sectional views showing third to fifth embodiments of the hinge of the present invention, respectively, and FIG. 8 is an explanatory diagram of the torque curve of the hinge of the present invention. It is. DESCRIPTION OF SYMBOLS 1... Main body, 1b... Extension part of main body, 2... Socket, 2b... Extension part of socket, 3... First
arm, 4... second arm, 5... second axis pin, 6... first axis pin, 7... third axis pin, 8... fourth axis pin, 12... First spring, 12a...One end of the first spring, 12
b...Other end of the first spring, 13...Second spring, 13a...One end of the second spring, 13b...Other end of the second spring, 15...
...Support pin, 17...Catch holder, 20...
Cam mechanism, 20a... cam plate, 22... support pin.

Claims (1)

[Claims] 1. A main body 1 and a socket 2 forming a pair for a hinge, wherein the main body 1 has an extending portion 1b formed at a connecting end thereof, and a tip of the extending portion 1b. a first shaft pin 6 attached to the main body 1 than the first shaft pin 6;
The second
The socket 2 has an extended portion 2b formed on the connecting end side thereof, a third shaft pin 7 attached to the tip of the extended portion 2b, and a third shaft pin 5. A fourth shaft pin 8 is attached at a position farther from the connection end of the socket 2 than the shaft pin 7 of the main body 1 and the socket 2, The main body is relatively rotatably and relatively bendably/extensibly connected via a first arm 3 that extends over the main body, and a second arm 4 that extends from the first shaft pin 6 to the fourth shaft pin 8. In a vertically opening/closing hinge in which the direction in which the socket 2 stands up and rotates relative to the socket 2 is the direction in which the hinge opens, and the direction in which the socket 2 rotates in the opposite direction is the direction in which the hinge closes, the first A spring 12 is held by a support pin 22 provided near the fourth axle pin 8 on the fourth axle pin 8 or the socket 2, and one end 12a of the first spring 12 is attached to the socket 2. At the same time, the other end 12b of the first spring 12 is locked to either the longitudinally intermediate portion of the second arm 4 or the vicinity of the extending portion 1b of the main body 1. A second spring 13 for applying a rotational force in the opening direction to the first arm 3 is attached to the second shaft pin 5.
The second spring 13 is held via a support pin 15 attached to the main body 1 with an axial distance from the second spring 13, and one end 13a of the second spring 13 It is locked to the end or the end of the second arm 4 on the first shaft pin 6 side by either direct locking or indirect locking via a rotation transmission member, and A hinge characterized in that the other end 13b of the spring 13 is locked to the main body 1.