JPH09228718A - Hinge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach a hinge in a single operation and to prevent the hinge from being disconnected even if the lid plate of the hinge is opened inadvertently. SOLUTION: A fastener 8 is mounted in a fastener mounting hole in an arm 2. The fastener 8 consists of a headed pin 25 temporarily held in the fastener mounting hole in such a way as to project from the arm 2 and a roughly cylindrical part 26 through which the headed pin 25 is passed. A biting part that can bite into the interior wall of the fastener mounting hole is provided at the end of the roughly cylindrical part 26. An expanding part that causes the biting part to project outward when the headed pin 25 is pushed in is provided on the inner surface of the biting part. The fastener 8 is covered up with a lid plate 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge device attached to a door or the like.

[0002]

2. Description of the Related Art Conventionally, as a hinge attached to a door or the like, Japanese Patent Laid-Open Publication No. 6-240941 discloses a hinge in which two arms are rotatably connected via a rotating portion. , One arm is provided with a hinge mortar-shaped portion to be inserted into the mounting recess of the door and a spreading member, and when the cover plate is opened, the tightening member is in a loose state, and the cover plate is closed. When it is pressed onto the arm, the tightening member is pulled toward the arm by the mounting pin and moves, and the crimping protrusion of the tightening member moves upward along the curved surface of the mortar-shaped part, so that the tightening member is By expanding outwardly and pressing the clamping member against the inner wall of the mounting recess, the clamping member transitions from the relaxed state to the tightened state, and the clamping member is retained in the mounting recess. It has become. Therefore, only by closing the cover plate, there is an advantage that the expanding member is pulled and the tightening member is pressed against the inner wall of the mounting recess, so that the hinge can be mounted with one touch.

[0003]

However, in the conventional hinge, when the cover plate is inadvertently opened for some reason, the force pulling the expansion member is released and the expansion member is in a loosened state. As a result, the fastening member and the inner wall of the mounting recess are in a non-crimped state, and there is a risk that the hinge will come off the door.

The present invention has been made in view of the above points, and the hinge can be attached to the attachment member with one touch, and even if the hinge cover plate is opened carelessly. The purpose of the present invention is to provide a hinge device that can prevent the hinge from coming off from the attachment member, and also to provide a hinge device that can maintain the temporary holding state of the stopper with the lid plate open. Another object of the present invention is to provide a hinge device that can prevent the fixing release by a stopper when the cover plate is closed, and further provide a hinge device that can prevent the cover plate from opening when the cover plate is closed. With the goal.

[0005]

In order to solve the above problems, the invention according to claim 1 of the present invention has two arms 2,
In a hinge device including a hinge 1 in which 3 is rotatably connected via a rotating portion 4 and a mounting member 10 to which the arms 2 and 3 are attached, a stopper attachment hole for attaching a stopper 8 to the arm 2. 9 is provided, and a fastener fitting hole 12 into which the fastener 8 is fitted is provided in the mounting member 10.
Includes a headed pin 25 that is temporarily held in the stopper mounting hole 9 so as to project from the arm 2, and a substantially tubular portion 26 into which the tip of the headed pin 25 is movably inserted.
An inner wall 12a of the stopper fitting hole 12 is provided at the tip of 6 with a bite-in portion 31 that is difficult to insert, and the bite-in portion 31 is difficult to insert when the tip of the headed pin 25 is pushed into the bite-in portion 31. A bulging portion 32 that projects 31 outward is formed, a lid plate 6 is rotatably attached to the arm 2, and a stopper 8 is covered with the lid plate 6 with the lid plate 6 closed. At the same time, the stopper 8 is pressed by the lid plate 6 so that the biting portion 31 of the stopper 8 projects outward and is held in pressure contact with the inner wall 12a of the stopper fitting hole 12. With this configuration, when the cover plate 6 is closed, the stopper 8 is stopped by the cover plate 6.
The headed pin 25 is pushed into the substantially cylindrical portion 26, and the headed pin 25 comes into contact with the bulging portion 32 provided in the bite-in portion 31, the bite-in portion 31 projects outward, and the stopper fitting hole 1
The inner wall 12a of 2 is fixed to the stopper fitting hole 12 by being pushed in, and the headed pin 25 is held in a state of being substantially pushed into the cylindrical portion 26. Therefore, even if the cover plate 6 is inadvertently opened and the push of the headed pin 25 by the cover plate 6 is released, the headed pin 25 cannot be pulled out upward, and the auxiliary attachment by the stopper 8 is performed. The effect is obtained.

The invention according to claim 2 is characterized in that in claim 1, the stopper 8 is provided with a temporary holding means for temporarily holding the protruding state of the headed pin 25 from the arm 2. In this case, since the protruding state of the stopper 8 is held by the temporary holding means when the cover plate 6 of the arm 2 is opened, the substantially cylindrical portion 26 of the stopper 8 is inserted into the stopper fitting hole 12 of the mounting member 10. Can be inserted smoothly.

According to a third aspect of the present invention, in the first aspect, the fixing means is provided to hold the pressed state into the stopper fitting hole 12 when the headed pin 25 is pushed into the stopper 8. It is preferable that the stopper 8 is prevented from being separated from the arm 2 by the fixing means when the cover plate 6 is opened carelessly. Claim 4
The invention described in claim 1 is preferably characterized in that the cover plate 6 is provided with a preventing means for preventing the cover plate 6 from opening in the closed state. In this case, the cover plate 6 is carelessly provided. Can be surely prevented from opening.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An example of an embodiment of the present invention will be described below. The hinge 1 of the present embodiment, as shown in FIG.
One end of a hinge lever 50 is rotatably connected to one of the vertically elongated arms 2 via a rotating portion, and the other end of the hinge lever 50 is connected to the other horizontally elongated arm 3 via a rotating portion 4. Is rotatably connected to. One arm 2 is attached to the door 10a via a spreading member 14 and a stopper 8 which will be described later, and the other arm 3 is fixed to the furniture side wall 10b with a fastener 13 such as a screw. Each arm 2 and 3 is made of a rigid material such as metal or die cast. One arm 2
As shown in FIG. 3, the cover plate 6 is attached via the mounting pin 5.
Are rotatably mounted. In the central portion of the lid plate 6, a lever storage hole 6 for storing the hinge lever 50.
b is formed, and a hinge mortar-shaped portion 7 that is open to the front side of the arm 2 and bulges toward the back side of the arm 2 is provided at the arm portion corresponding to the lever storage hole 6b. The inside of the hinge mortar-shaped portion 7 serves as a lever housing recess for housing the hinge lever 50. A pair of stopper mounting holes 9 for mounting a stopper 8 described later in a temporary holding state are formed on both sides of the hinge mortar-shaped portion 7.

The one arm 2 is attached to, for example, a door 10a as the attachment member 10, and as shown in FIG. 8, the hinge mortar-shaped portion 7 provided on the one arm 2 is loosely inserted in the door 10a. A mounting recess 11 is provided, and on both sides of the mounting recess 11, there are formed a pair of stopper fitting holes 12 which are small holes into which the stopper 8 is mounted.

As shown in FIG. 10, on both sides of the hinge mortar-shaped portion 7 of the one arm 2, a pair of left and right metal members are loosely inserted together with the hinge mortar-shaped portion 7 into the mounting recess 11 of the door 10a. The expansion member 14 made of metal is arranged. This expansion member 1
4, an upper portion is provided with a coupling portion 16 penetrating through an opening portion 15 (FIG. 3) of one arm 2 and rotatably coupled to a lid plate 6 via a mounting pin 5, and a lower portion is made of plastic, The tightening member 18 made of rubber or the like is held. Then, when the cover plate 6 is opened, the expansion member 14 is not drawn to the arm 2 side, and the pressure-bonding protrusion 19 is the bottom 7 of the hinge-shaped part 7.
c and the curved surface 7b between the side wall 7a and the expansion member 1
4 is held in a relaxed state, and when the cover plate 6 is closed, the expansion member 14 is pulled toward the arm 2 side,
The crimping projection 19 is crimped onto the flat side wall 7a of the hinge-shaped mortar-shaped portion 7, and the tightening member 18 is attached to the inner wall 11a of the mounting recess 11.
The expansion member 14 is pressed by the switch to shift to the tightened state.

Further, as shown in FIG. 3, an elastic piece 21 made of rubber or the like which is bent upward in an arch shape is provided on the upper surface of the fastening member 18, and the upper surface of the elastic piece 21 is provided. Can be crimped to the back surface of the arm 2. This elastic piece 21 is elastically pressed and deformed by the back surface of the arm 2 when the cover plate 6 is closed, widening the gap between the arm 2 and the tightening member 18, and expanding the member 14 to the arm 2. It acts to increase the pulling power of. The elastic piece 21 has such a thickness that it does not elastically contact the arm 2 when the cover plate 6 is in the open state, so that the expanding member 14 is kept in a relaxed state. Further expanding member 14
A hook portion 22 that can be engaged with the inner wall 11a of the mounting recess 11 is provided at the lower end of the hook, and when the door 10a is made of wood, the hook portion 22 is engaged with the inner wall 11a of the mounting recess 11 for mounting. The crimping force of the expansion member 14 with respect to the recess 11 is enhanced.

A hole 9 for attaching a stopper of the one arm 2
A stopper 8 as an auxiliary attachment is attached to the. As shown in FIG. 2, the stopper 8 is a headed pin 25 that is temporarily fixed to the stopper mounting hole 9 so as to project from the arm 2 and a tip of the headed pin 25 is movably inserted. And a tubular portion 26. Here, the headed pin 25 is shown in FIG.
As shown in FIG. 5, a head portion 25a held by the cover plate 6 and a shaft portion 25b are formed. A fixing groove 27 is formed at a position near the head portion 25a side of the shaft portion 25b. A temporary holding groove 28 is formed at the position. Further, as shown in, for example, FIG. 5 and FIG. 6, the substantially tubular portion 26 is composed of four split blade pieces 29 and a connecting piece 26a for connecting the blade pieces 29, and a stopper fitting hole is provided at the tip of each blade piece 29. An inner wall 12a of the recess 12 is provided with a recess 31 which is difficult to be inserted, and the inner surface (or the outer surface thereof) of the recess 31 bulges inwardly of the recess 31 and the tip of the headed pin 25. A bulging portion 32 is formed so that the recessed portion 31 that is difficult to be pushed into the stake-in portion 31 protrudes outward. Further, an uneven surface 31a is formed on the outer surface of each blade piece 29, and a small protrusion 33 is provided on the inner surface of the blade piece 29, and the temporary holding groove 28 provided on the headed pin 25 is provided.
The small protrusion 33 can be fitted into either one of the fixing groove 27 and the fixing groove 27. Then, the blade piece 2 is inserted into the temporary holding groove 28.
By engaging the small protrusions 33 of 9, the temporary holding means for temporarily holding the protruding state of the headed pin 25 from the arm 2 is configured in the stopper 8, and the fixing groove 27 has a small holding portion. By the engagement of the protrusion 33, a fixing means for holding the biting state of the bite portion 31 with respect to the inner wall 12a of the stopper fitting hole 12 when the headed pin 25 is pushed into the stopper 8 is configured. .

A cover plate 6 rotatably connected to the arm 2 via a mounting pin 5 has a size that covers the entire arm 2. Here, as shown in FIG. 7, the mounting pin 5 and the cover plate 6 are arranged so that the distance between the mounting pin 5 and the lower end edge 6a of the cover plate 6 is slightly larger than the distance between the mounting pin 5 and the surface of the arm 2. The positional relationship with the arm 2 is set. That is, the lid plate 6 is opened halfway and the lower end edge 6a of the lid plate 6 connects the mounting pin 5 and the surface of the arm 2 to an intermediate position M.
In the intermediate stage located above, the lower edge 6a of the lid plate 6
When the lower end edge 6a moves to the right of the intermediate position M as shown in FIG. 7 (b), the cover plate 6 is urged in the opening direction. When the lower end edge 6a of the lid plate 6 moves to the left of the intermediate position M, the lid plate 6 is urged in the closing direction to be closed as shown in (c). The lid state is established, whereby the lid plate 6 is held in either the open state or the closed state. Further, the mounting pin 5 rotatably connects the arm 2 and the cover plate 6 by allowing the cover plate 6 to have a predetermined play, and when the cover plate 6 is closed, the arm 2 and the cover plate 6 are close to the intermediate stage. The lid plate 6 can be smoothly closed by the above play.

Then, one arm 2 of the hinge 1 is attached to the door 1
When the cover plate 6 of the arm 2 is opened, the expanding member 14 is in a relaxed state when it is mounted on the door 0a. Therefore, the hinge mortar-shaped portion 7 and the expanding member 14 are installed in the mounting recess 11 of the door 10a. 2 in the stopper 8, the small protrusion 33 of the blade piece 29 is engaged with the temporary holding groove 28 of the headed pin 25 as shown in FIG. 2A. , The headed pin 25 is held in a state of protruding above the blade piece 29, so that the bite portion 31 is held in a closed state, and the blade piece 29 is smoothly inserted into the stopper mounting hole 9 of the door 10a. be able to. At this time, the lower end edge 6a of the lid plate 6 is located on the right side of the intermediate position M connecting the mounting pin 5 and the surface of the arm 2 as shown in FIG. 7A, and the lid plate 6 is held in an open state. It

After that, when the cover plate 6 is closed, the lower end edge 6a of the cover plate 6 moves while being pressed against the surface of the arm 2 until the intermediate stage, and the lower end edge 6a of the cover plate 6 is positioned above the intermediate position M. At this time, the pressure contact force between the lower end edge 6a of the lid plate 6 and the surface of the arm 2 reaches a peak, and when the lid plate 6 is further closed from this state, the lower end edge 6a moves to the left beyond the intermediate position M, and 6 is biased in the closing direction, and the lid plate 6 is held in the closed state shown in FIG. 7B even if the lid plate 6 is manually pushed onto the arm 2 and then the hand is released. , The lid plate 6 without using any special locking means
Can be held closed.

Here, when the cover plate 6 is closed, as shown in FIGS. 11 and 12, the expansion member 14 is pulled and moved by the cover plate 6 toward the arm 2 side, and the expansion member 14 is expanded in conjunction therewith. The crimping protrusion 19 of the member 14 is the curved surface 7c of the mortar-shaped part 7
And is pressed against the side wall 7a (state of FIG. 11). Therefore, the expanding member 14 expands outward, and the tightening member 18 is pressed against the inner wall 11a of the mounting recess 11, whereby the expanding member 14 shifts from the relaxed state to the tightened state and expands. The opening member 14 is fixed to the mounting recess 11 so as not to come off, so that the hinge 1 can be easily mounted with one touch without using a tool.

When the cover plate 6 is closed, the headed pin 25 of the stopper 8 is pushed by the cover plate 6 in the direction of the arrow in FIG. 2B, and the headed pin 25 is pushed into the blade piece 29. ,
When the headed pin 25 comes into contact with the bulging portion 32 provided on the inner surface of the bite portion 31 at the tip of the blade piece 29, the bite portion 31 projects outward, and the uneven portion 31a on the outer surface of the blade piece 29 stops. The inner wall 12a of the fitting hole 12 is difficult to fit,
As a result, the stopper 8 is fixed in the stopper fitting hole 12 so as not to come off. At this time, when the headed pin 25 is pushed in, the small projection 33 of the blade piece 29 is disengaged from the temporary holding groove 28 of the headed pin 25 and engages with the fixing groove 27.
The headed pin 25 is held in a state of being pushed into the blade piece 29, and the auxiliary attachment state by the stopper 8 is maintained.

Therefore, even if the cover plate 6 is inadvertently opened, the expansion member 14 returns to the relaxed state, and the pressing of the headed pin 25 by the cover plate 6 is released, The headed pin 25 cannot be pulled out upward due to the engagement of the small projection 33 of the blade piece 29 and the fixing groove 27 of the headed pin 25, and the stopper 8 and the stopper mounting hole 9 are fitted together. Is retained, the auxiliary attachment effect of the stopper 8 is maintained, and there is no risk of the hinge 1 coming off the door 10a. Moreover, since the stopper 8 is covered by the cover plate 6, the stopper 8 is not exposed to the outside, and the hinge 1
The external appearance of the is not impaired by the stopper 8.

Further, in the present embodiment, when the cover plate 6 is closed, the elastic piece 21 provided on the upper surface of the tightening member 18 is elastically pressed against the back surface of the arm 2 so that the arm 2 and the expanding member 14 are separated from each other. Since the space between them is widened (state of FIG. 7C), the pulling force of the expansion member 14 to the arm 2 increases, the tightening force of the expansion member 14 increases, and the cover plate 6 is prevented from opening. There is also an advantage that it can be achieved further.

13 and 14 show another embodiment of the stopper 8. The stopper 8 of this embodiment is the arm 2
It is composed of a headed pin 25 that is temporarily fixed to the fastener mounting hole 9 so as to project from it, and a substantially tubular portion 26 into which the tip of the headed pin 25 is movably inserted. The headed pin 25 includes a head portion 25a held by the cover plate 6 and a shaft portion 25b, and a large diameter portion 25c is provided at the tip of the shaft portion 25b. On the other hand, the substantially tubular portion 26 is composed of two split blade pieces 40 and a connecting piece 26a for connecting the blade pieces 40, and the connecting pieces 26a of each blade piece 40 are attached to the stopper attachment holes 12 of the arm 2. Inserted and held in the holding cylinder 42 with the flange 41,
The root side of the blade piece 40 is pressed against the shaft portion 25b of the headed pin 25 by the inner protruding piece 43 provided at the tip of the holding cylinder 42. In addition, each blade piece 40 is formed to have the same thickness toward the tip, and the inner wall 12a of the stopper fitting hole 12 is difficult to be inserted into the tip, and the penetrating portion 3 is provided.
1 is provided, and a bulge portion 32 is formed on the inner surface (or the outer surface) of the bite portion 31,
When the tip of the headed pin 25 is pushed into the biting part 31, the bulging part 32 causes the biting part 31 to project outward. The expansion member 14 is not shown in FIG. The other structure is similar to that of FIG.

With the cover plate 6 open, however, as shown in FIG.
4 (a), the root side of the blade piece 40 is pressed against the shaft portion 25b of the headed pin 25 by the inner protruding piece 43 of the holding cylinder 42, so that the headed pin 25 is projected above the blade piece 40. Therefore, the bite portion 31 is held in the closed state, and the blade piece 40 can be smoothly inserted into the stopper attachment hole 9 of the door 10a.

After that, when the cover plate 6 is closed, FIG.
The headed pin 25 is pushed into the blade piece 40 like
The large-diameter portion 25c of the headed pin 25 is pressed against the bulging portion 32 provided on the inner surface of the bite-in portion 31, whereby the bite-in portion 3 is formed.
1 protrudes outward and is hard to fit into the inner wall 12a of the stopper fitting hole 12, and the headed pin 25 is held in a state of being pushed into the blade piece 40. Therefore, even if the cover plate 6 is inadvertently opened, the headed pin 25 cannot be pulled out upward, and the auxiliary attachment effect of the stopper 8 can be obtained. Similarly, hinge 1 has door 10a
It is possible to obtain the effect that it can be prevented from coming off.

[0023]

As described above, according to the first aspect of the present invention, the hinge having the two arms rotatably connected to each other through the rotating portion and the attachment member to which the arms are attached are provided. In the hinge device, the arm is provided with a stopper mounting hole for mounting the stopper, the mounting member is provided with a stopper fitting hole into which the stopper is fitted, and the stopper is designed to project from the arm. It consists of a headed pin that is temporarily held in the mounting hole and an approximately cylindrical part that allows the tip of the headed pin to move freely. At the tip of the approximately cylindrical part, the inner wall of the stopper fitting hole is difficult to insert In addition, a bulge is formed in the bite part so that when the tip of the headed pin is pushed into the bite part, the bulge part that protrudes outward is formed, and the lid plate is rotatably attached to the arm. And closed the lid plate In this state, the stopper is covered with the lid plate, and the stopper is pressed by the lid plate so that the biting part of the stopper projects outward and is held in pressure contact with the inner wall of the stopper fitting hole. , When the lid plate is closed, the head pin of the stopper is pushed into the substantially cylindrical portion by the lid plate, and the head pin abuts the bulging part provided in the bite part, and the bite part projects outward and the stopper The headed pin is held in a state of being substantially pushed into the cylindrical portion by being pushed into the inner wall of the fitting hole. Therefore, the arm can be attached to the attachment member securely and with one touch, and even if the cover plate is accidentally opened and the push of the head pin by the cover plate is released, the head pin can be removed. Therefore, it is possible to obtain an auxiliary mounting effect by the stopper, and it is possible to reliably prevent the hinge from coming off the mounting member. Further, since the stopper is hidden by the lid plate, it is possible to prevent the appearance of the hinge from being damaged by the stopper.

According to the invention of claim 2, in addition to the effect of claim 1, the stopper according to claim 1 is provided with a temporary holding means for temporarily holding the protruding state of the headed pin from the arm. Since the protruding state of the stopper is held by the temporary holding means when the cover plate is opened, the substantially cylindrical portion of the stopper can be smoothly inserted into the stopper fitting hole of the mounting member, and the work can be facilitated.

According to the third aspect of the present invention, the stopper according to the first aspect is provided with a fixing means for holding the state of being pushed into the stopper fitting hole when the headed pin is pushed.
In addition to the effect of the first aspect, when the cover plate is inadvertently opened, the fixing means reliably prevents the headed pin from coming off, so that the stopper can be reliably prevented from coming off from the arm. It is possible to further improve the attachment strength of the hinge.

Further, the invention according to claim 4 is provided with a preventing means for preventing the lid plate from opening in a state where the lid plate according to claim 1 is closed. Therefore, in addition to the effect according to claim 1, It is possible to more reliably prevent the lid plate from being opened carelessly.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an example of an embodiment of the present invention.

2 (a) and 2 (b) are cross-sectional views for explaining the operation of the above stopper.

FIG. 3 is an exploded perspective view of the cover plate, the arm, and the expansion member of the above.

4A and 4B are a side view and a rear view of a headed pin.

5A to 5C are a right side view, a partial rear view and a left side view of a substantially tubular portion.

6A and 6B are a side view and a rear view of a blade piece.

7A to 7C are explanatory views of the opening / closing operation of the cover plate.

FIG. 8 is a front view of a hinge attaching portion of the door.

FIG. 9 is a perspective view illustrating how the hinge is attached.

FIG. 10 is a cross-sectional view illustrating a spreading member.

FIG. 11 is an operation explanatory view of the expansion member.

FIG. 12 is a partially cutaway side view illustrating a spreading member.

FIG. 13 is a cross-sectional view of another embodiment of the present invention.

14 (a) and 14 (b) are sectional views for explaining the operation of the stopper of FIG.

[Explanation of symbols]

 1 Hinges 2, 3 Arms 4 Rotating part 8 Stoppers 9 Stopper mounting holes 10 Mounting members 12 Stopper fitting holes 25 Headed pins 26 Approximately cylindrical part 31 Biting parts 32 Swelling parts 34 Temporary holding means 35 Fixing means

Claims (4)

[Claims] 1. A hinge device comprising a hinge in which two arms are rotatably connected to each other via a rotating portion and a mounting member to which the arms are attached, and a stopper attachment hole for attaching a stopper to the arm. The mounting member is provided with a stopper fitting hole into which the stopper is fitted, and the stopper includes a headed pin temporarily held in the stopper mounting hole so as to project from the arm, and a tip of the headed pin. It is composed of a substantially cylindrical portion that is inserted movably, and at the tip of the substantially cylindrical portion, there is provided a recessed part that is difficult to insert into the inner wall of the stopper fitting hole, and at the bite part, the tip of the headed pin is inside the bite part. A bulging part is formed to protrude the hard-to-insert part when pushed in, and a cover plate is rotatably attached to the arm.
With the lid plate closed, the stopper is covered with the lid plate, and the stopper is pressed by the lid plate so that the bite part of the stopper projects outward and is held in pressure contact with the inner wall of the stopper fitting hole. A hinge device characterized by being configured. 2. The hinge device according to claim 1, wherein the stopper is provided with a temporary holding means for temporarily holding the protruding state of the headed pin from the arm. 3. The hinge device according to claim 1, further comprising a fixing means for holding a state of being pushed into the stopper fitting hole when the headed pin is pushed into the stopper. 4. The hinge device according to claim 1, further comprising a prevention unit that prevents the lid plate from opening with the lid plate closed.