JPH10110568A - Hidden hinge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a hidden hinge without taking a depth, to increase the turning angle, and to firmly fix a door to a box body. SOLUTION: A slide body 4 is slidable relative to a fixed body 3 to be provided on a back side of a box body, and a shaft body 5a to pivotably support a forward door 1 is provided on the slide body 4. Because the forward door 1 can be opened around the shaft body 5a after the slide body 4 slides, and the position of the shaft body 5a can be moved in the direction of an opening part, the turning angle of the forward door 1 can be increased. A hinge can be provided with the depth of the size of the fixed body 3 inside the box body, requiring a large internal space.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hidden hinge provided on a door which can be opened and closed with respect to a housing, wherein the hinge does not appear on the surface of the housing.

[0002]

2. Description of the Related Art Generally, when a door is provided on a housing so as to be openable and closable, and the door is opened to the front side of the housing,
A hinge is provided on the front side of the housing. However, if a hinge is provided on the surface of the housing, this hinge portion becomes a projection, which is not preferable from an aesthetic point of view. In addition, the door may be opened by destroying the exposed hinge. For this reason, there is a hidden hinge provided with a hinge inside the housing.

[0003] The housing at the part where the door opens and closes is formed with an opening. In this case, a thin jig such as a screwdriver can be inserted through a gap between the housing and the door, and the front door is illegally opened. There is a risk of being broken open. For this reason, when the door is closed, it is necessary that the periphery of the door be in contact with the periphery of the opening of the housing as close as possible.

FIG. 6 is a plan sectional view showing a conventional hidden hinge. (A) is a state where the door is closed, and (b) is a state where the door is open. The front door 41 provided on the housing 40 is
The hidden hinge 42 provided inside the front door 0 eliminates protrusions on the surface of the front door 41 and can provide an aesthetic appearance, and the front surface is planar, so that unauthorized opening of the front door 41 can be prevented.

The hidden hinge 42 is provided with angles 43 and 44 on the housing 40 and the front door 41, respectively, and two support shafts 4 are provided between the angles 43 and 44, respectively.
5 and 46 are provided, and the support shafts 45 and 46 are connected to each other by two link plates 47a and 47b.

Since the hidden hinge 42 is configured to rotate while the front door 41 moves forward, the hidden hinge 42 is formed in such a size that the peripheral edge of the front door 41 can be in close contact with the opening of the housing 40. And the gap can be reduced. Also,
A step portion 40b can be provided around the entire opening of the front door 41 in the housing 40 to prevent insertion as shown in the figure, and even if the jig is forcibly inserted through the gap, the insertion amount is reduced. The front door 41 can be reduced to such an extent that it cannot be forcibly opened.

[0007]

When the hinge is provided only on the back side of the housing as in the former case, the axis which is the center of rotation of the door is also located inside the housing. Therefore, when the door is closed, a gap is generated between the base end of the door that opens and closes around the axis and the opening of the housing (particularly, the end face opposite to the free end of the door). . Foreign matter is easily inserted from this gap, and the door is easily pryed. Attempts to reduce this gap have the disadvantage of decreasing the opening angle of the door. These problems can be solved by the hidden hinge 42.

However, the hidden hinge 42 requires adjustment of each part and is expensive. Further, the depth dimension of the angles 43 and 44 inside the housing 40 increases,
There is a disadvantage that the internal storage space is narrowed. Further, as shown in FIG. 6B, since the rotation angle of the front door 41 is 90 degrees or less due to its structure, the front door 41 is used to slide and take out an object stored in the housing. It was easy to get caught on the free end of the vehicle and there was a risk of damaging each other and injuring the operator.

Also, the front door 4 using the hidden hinge 42 is provided.
1 is configured so as to rotate forward about the hidden hinge 42, and therefore, a portion for fixing the front door 41 to the housing 40 (the position of the lock mechanism 49) can be provided only on the free end side. Therefore, the front door 41 can be fixed to the housing 40 only at the free end and both ends of the hidden hinge 42, and the center portion only contacts the housing 40. There was a problem that it was easy to forcibly open.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and provides a hidden hinge which can be reduced in size without taking depth, can have a large rotation angle, and can firmly fix a door to a housing. It is intended to be.

[0011]

In order to achieve the above object, the hidden hinge of the present invention is provided on the back surface of one side of the opening (20a) of the housing (20). Fixed body (3), a slide body (4) slidable in the fixed body, and a shaft body provided on the slide body and pivotally supporting a door (1) that can be opened and closed with respect to an opening of the housing. (5
a).

According to a second aspect of the present invention, the fixed body (3) is provided with a lock piece (3g), and the slide body (4) is biased to engage with the lock piece during sliding. The door (1) is provided with a release member (1c) that engages with the stopper member in a state where the door is closed, and the door is opened. In this state, the stopper member of the slide body may engage with the lock piece of the fixed body to fix and hold the slide body, and the slide body may be slidable by closing the door.

According to a third aspect of the present invention, an engagement piece (1e) is provided above and below the door (1) and the housing (20) to engage with each other by sliding the slide body (4). , 1f) and engagement holes (20e, 20f).

When the front door 1 is slid, the position of the pivot 5a provided at the base 1a can be moved away from the opening 20a of the housing 20. As a result, the front door 1 can rotate about one shaft 5a after sliding, and the rotation angle can be increased. In addition, since the front door 1 is configured to slide, the engagement pieces 1e and 1f provided at the top and bottom engage with the engagement holes 20e and 20f of the housing 20 when the front door 1 is closed. ,
In the state where the front door 1 is closed, the number of engagement and fixed portions can be increased, and the front door 1 can be closed in a stronger state. When the front door 1 is opened after sliding, the stopper member 11
Are engaged with the lock pieces 3g of the fixed body 3 and the sliding state is fixed, so that the front door 1 does not slide with the front door 1 open and does not damage the front door 1 surface.

[0015]

1 (a) and 1 (b) are a plan view and a front view showing a hidden hinge of the present invention, and FIG. 2 is an exploded perspective view of the same. In these figures, the housing is not shown and only the front door 1 and the hinge mechanism 2 are shown.

The hinge mechanism 2 provided at the base 1a of the front door 1 has a fixed body 3 fixed to the housing and a slidable inside of the fixed body 3, and the base 1a of the front door 1 is slidable. It is composed of a slide body 4 that supports the shaft. The fixed body 3 is formed in a frame shape, and has a bent portion 3a bent vertically.
The bent portion 3a is provided with two long holes 3b each having a predetermined length along the sliding direction.

In the fixed body 3, a fixed piece 3d extending from the bent portion 3a is fixed to the housing using screws or the like. The vertical frame 3e is formed with an opening 3f at a half in the sliding direction, and an approximately central portion of the vertical frame 3e has an L-shaped lock piece 3 projecting at a predetermined length.
g is formed.

The slide body 4 has upper and lower bent portions 4a and is connected by a vertical frame portion 4b. Two shafts 5a and 5b are provided between the upper and lower bent portions 4a. Fixed. The arrangement interval of the shafts 5a and 5b is formed in accordance with the pitch of the elongated holes 3b of the fixed body 3, and the shafts 5a and 5b are formed.
Both ends of 5b are inserted in the long hole 3b and are prevented from being pulled out by a ring or the like, and the slide body 4 is slidable within the length of the long hole 3b.

On the shaft 5a, support pieces 1b provided on the upper and lower sides of the base end 1a of the front door 1 are pivotally supported. At an intermediate position of the shaft body 5b, at a height position portion of the lock piece 3g,
A lock angle 7 is provided, and the lock angle 7 is fixed to the slide body 4. Locking pieces 7a are formed at the upper and lower ends of the lock angle 7 at the ends in the sliding direction, and the locking pieces 7a are provided with locking openings 7a.
An opening b is formed. The opening 7b is engageable with a locking projection 10a of the lock 10 provided on the housing.

Locking pieces 7a, 7 of the lock angle 7
A stopper member 11 is rotatably supported at a portion of the shaft body 5b between "a" and "a". The stopper member 11 is a lock piece 3g.
The engaging piece 11a is bent in the direction. A torsion spring 12 is inserted through the shaft 5b of the stopper member 11, and one end of the torsion spring 12 is locked by the lock angle 7 and the other end is attached to the stopper member 11. Reference numeral 11 is constantly urged to rotate in the direction of the lock piece 3g by a torsion spring 12.

The stopper member 11 is engageable with a release piece 1c extending from the base 1a of the front door 1. When the front door 1 is closed, the stopper member 11 is engaged with the stopper member 11 and the torsion spring 12 is engaged. Rotate in the direction away from the lock piece 3g against the reaction force.

The front door 1 with the base 1a attached to the hinge mechanism 2 is slidable at the handle 1d and rotatable about the shaft 5a. A plurality of (two in the figure) engaging pieces 1e are provided at an upper position on the back surface of the front door 1, and the engaging pieces 1e do not protrude upward from the upper edge of the front door 1 and are fixed. Hidden behind. Similarly, a plurality of (two in the figure) engaging pieces 1f are provided at a lower portion of the back surface of the front door 1, and the engaging pieces 1f are provided hidden behind the front door.

FIG. 3 shows a housing 2 provided with the front door 1.
FIG. The housing 20 is formed such that a pivoting portion of the front door 1 is formed as an opening 20 a, and an edge of the opening 20 a except for the base end 1 a of the front door 1 is provided at 3.
A step 20c is formed in the direction. Step 20c
Are formed as recesses with respect to the surface of the housing 20 by the thickness of the front door 1.

The stepped portion 20c has an engaging hole 20 at a position corresponding to the engaging piece 1e, 1f on the back surface of the front door 1.
e, 20f are formed, and are engageable with the engagement pieces 1e, 1f.

Next, the opening / closing operation of the front door 1 with the above configuration will be described. FIG. 4A is a plan sectional view showing a state where the front door 1 is closed. In this state, the locking piece 7a provided on the lock angle 7 of the slide body 4
And the front door 1 is locked to the housing 20 with the opening 20a of the housing 20 closed.

At this time, the engaging pieces 1e and 1f of the front door 1 are engaged with the steps 20c on the side of the engaging holes 20e and 20f of the housing 20, so that not only the lock by the lock 10 but also the front door 1 is engaged and fixed to the housing 20 at a plurality of upper and lower locations,
The front door 1 can be firmly fixed by the housing 20. When the front door 1 is closed, the entire periphery of the rear surface of the front door 1 is in contact with the step 20c, and the gap between the front door 1 and the opening 20a of the housing 20 is linearly continuous. Rather than being formed. Accordingly, even if a jig or the like is inserted from the periphery of the front door 1 through the opening 1a, the jig is stopped by the step portion 20c, and the jig cannot be inserted into the housing 20 any more. It cannot be broken open.

When the front door 1 is opened, the lock of the lock 10 is released and the locking projection 10a is removed from the locking piece 7a of the lock angle 7. Next, a finger is put on the handle 1d of the front door 1 and the front door 1 is slid in the direction A in the figure.

As a result, as shown in FIG. 4B, the shaft bodies 5a and 5b of the slide body 4 move in the same direction A in the elongated hole 3b of the fixed body 3. Since this sliding is performed while the front door 1 is closed, the release piece 1c provided at the base end 1a of the front door 1 is still engaged with the stopper member 11, and the engagement piece 11a is It does not engage with the lock piece 3g. In addition, due to this movement, the engagement pieces 1e and 1f of the front door 1 are disengaged from the stepped portion 20c of the housing 20, and are positioned at the engagement holes 20e and 20f.

Thereafter, as shown in FIG. 5, the front door 1 can be opened in the direction B in the figure around the shaft 5a. This state is also shown in FIG. After the front door 1 is slid, the front door 1 is configured to rotate around the single slidable shaft 5a, so that the rotation angle can be opened by 90 degrees or more as shown in FIG. Opening 20a
Can be widely opened. Thereby, the housing 20
The front door 1 does not become an obstacle when a unit or the like inside is pulled out from the opening 20a, so that the attaching / detaching operation can be easily performed.

Further, by this rotation, the release piece 1c moves to the opening 3f of the fixed body 3 and releases the engagement with the stopper member 11. The stopper member 11 is rotated in the direction of the lock piece 3g by the urging force of the torsion spring 12 due to the release of the engagement, and the engagement piece 11a is engaged with the lock piece 3g. By this engagement, the slide body 4 is fixedly held at the same position in the sliding state. Therefore, when the front door 1 is opened, the slide body 4 is prohibited from moving to the initial position, and the surface of the front door 1 comes into contact with and damages the edge of the opening 20a of the housing 20 due to the movement. Without
The beauty of the surface of the front door 1 can be maintained.

Thereafter, when the front door 1 is locked to the housing 20, the above operation may be reversed. After the front door 1 is closed, the front door 1 is slid and locked by the lock 10. Thereby, as shown in FIG. 4A, the front door 1 can be locked while being fixed to the housing 20.

In the above embodiment, the engaging pieces 1e and 1f are provided on the front door 1 side, and the engaging holes 20e and 20f are provided on the housing 20 side.
However, the front door 1 may be provided with an engagement hole, and the housing 20 may be provided with an engagement piece. Further, two or more engaging pieces and engaging holes may be provided above and below the front door 1 and the opening 20a of the housing 20, respectively, so as to perform more secure fixing.

[0033]

According to the present invention, the shaft for supporting the door is slidable, and the door is configured to be openable and closable after sliding. Therefore, the size can be reduced, the depth can be reduced, and the rotation of the door can be achieved. The angle can be increased. In addition, since the door is configured to open and close after sliding, the sliding allows the housing and the door to be engaged and fixed, and can be fixed to the housing at a plurality of locations above and below the door,
The door can be more firmly fixed to the housing. Further, when the door is opened by the stopper member, the slide is prohibited, so that it is possible to prevent the door surface from sliding and being damaged when the door is opened.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of a hidden hinge of the present invention.
(A) is a plan view, (b) is a front view.

FIG. 2 is an exploded perspective view showing the hidden hinge.

FIG. 3 is a perspective view of a housing to which a hidden hinge is applied.

FIG. 4 is a view showing the operation of the hidden hinge. (A) is a state in which the door is closed, and (b) is a state in which the door is slid.

FIG. 5 is a view showing the operation of the hidden hinge (with the door opened).

FIG. 6 is a plan sectional view showing a conventional hidden hinge. (A) is a state where the door is closed, (b) is a state where the door is open.

[Explanation of symbols]

Reference Signs List 1 front door, 1a base end, 1c release piece, 1e, 1f
... engaging piece, 3 ... fixed body, 3g ... locking piece, 4 ... sliding body, 5a, 5b ... shaft body, 7 ... lock angle, 10 ... lock member, 11 ... stopper member, 11a ... engaging piece, 20 ... housing Body, 20a: opening, 20c: step, 20e, 20f
... engaging holes.

Continuing on the front page (72) Inventor Kenji Moriguchi 5-10-27 Minami-Azabu, Minato-ku, Tokyo Anritsu Corporation (72) Inventor Teruo Kuwahara 3-1-2, Nishishinjuku, Shinjuku-ku, Tokyo Nippon Telegraph and Telephone Stocks Inside the company (72) Inventor Takanori Nakajima 3-19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Seiji Takahashi 2-3-2 Shimomeguro, Meguro-ku, Tokyo Tamura Electric Co., Ltd. Inside the factory (72) Inventor Shinobu Kitazawa 2-3-2 Shimomeguro, Meguro-ku, Tokyo Inside the Tamura Electric Co., Ltd.

Claims (3)

[Claims] 1. A fixed body (3) provided on a back surface of one side of an opening (20a) of a housing (20); a slide body (4) slidable in the fixed body; A hinge (5a) provided to pivotally support a door (1) that can be opened and closed with respect to an opening of the housing. 2. A lock piece (3g) is provided on the fixed body (3).
The slide body (4) is provided with a stopper member (11) to which an urging force for engaging with the lock piece at the time of sliding is provided, and the door (1) is closed. In the state, a release piece (1c) that engages with the stopper member is formed. When the door is opened, the stopper member of the slide body engages with the lock piece of the fixed body to fix and hold the slide body. The hidden hinge according to claim 1, wherein the sliding body is configured to be slidable by closing the door. 3. The door (1) and the housing (20) respectively have an engagement piece (1e, 1f) and an engagement hole (20) for engaging each other by sliding of the slide body (4).
2. The concealed hinge according to claim 1, further comprising e, 20f).