JP2003278440A - Arm type hinge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vertically slidable arm type hinge capable of obtaining a favorable closed condition without play and favorably obtaining an opening/ closing motion. <P>SOLUTION: A door 2 is vertically moved in parallel with a container 1 in an opening/closing and supporting arm type hinge. A fixing base 3 is fixed to the container 1, and a door base 3 is fixed to the door 2, in the state that both ends of a first arm 5 and both ends of a second arm 6 are substantially parallel to each other, the door is link-connected through respective axes to the upper part and the lower part of the fixing base 3 and the upper part and the lower part of the door base 4. A parallelogram link is formed by the fixing base 3, the door base 4, a first arm 5, and a second arm 6. A coil spring 7 urging the door in the closing direction and the opening direction is connected to the first arm 5 or the second arm 6. The inclined angle of the parallelogram link at the time when the door is closed is set in 10-15&deg;. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arm type hinge for opening / closing and supporting a door in a vertically sliding manner by moving a door of a housing such as a cabinet in parallel with an opening of the housing.

[0002]

2. Description of the Related Art As a door for a kitchen cabinet or the like, an arm hinge has been developed which opens and closes and supports a door by moving the door vertically in parallel with respect to an opening, that is, by vertically sliding the door. This type of arm-type hinge is a hinge in which the first arm and the second arm are linked together to have a parallelogram linkage, and the door is closed to cover the front opening of the cabinet. Is moved upward in parallel with the opening, that is, the door is slid while keeping the parallel state upward, and the door is slid up to the upper position of the opening to open the door.

[0003]

However, in this type of arm type hinge, the first arm and the second arm are linked to each other between the fixed base and the door base so as to form a parallelogram link. A structure in which a coil spring is connected to the arm or the second arm to urge and hold the door in both the closing direction and the opening direction, and further includes the first and second arms when the door is closed. With the hinge of the link mechanism completely housed inside the cabinet,
When the door is opened, the door has to be completely raised to the upper position of the cabinet, and the structure is such that the closing and opening states of the door are held by the biasing force of the coil spring.
For this reason, when the biasing force of the coil spring is properly adjusted, the door may not be completely closed when the door is slid to the closed position, and there is a gap between the opening of the cabinet and the door. However, there is a problem that the door is closed and rattling occurs.

The present invention has been made in view of the above points, and it is an object of the present invention to provide an up-and-down slide type arm hinge capable of opening and closing a door in a favorable closed state without rattling. To aim.

[0005]

In order to achieve the above object, the arm type hinge of the present invention is an arm type hinge for vertically moving and opening / closing and supporting a door with respect to a storage part. The fixed base is fixed to the door, the door base is fixed to the door, and the both ends of the first arm and the second arm are substantially parallel to each other, and the pivots are respectively attached to the upper and lower portions of the fixed base and the upper and lower portions of the door base. A parallelogram link is formed by a fixed base, a door base, a first arm, and a second arm, and the first arm or the second arm urges the door in the closing direction and the opening direction. The means is connected, and the angle of the narrow angle portion of the parallelogram link when the door is closed is set to 10 ° to 15 °.

Here, the door base is provided with a base plate fixed to the inside of the door and a base body for connecting and supporting the lower ends of the first arm and the second arm via their respective pivots. The main body may be attached to the base plate so that the position of the main body can be adjusted in the front-rear direction and the vertical direction. In addition, a front-rear adjusting plate whose front-rear position can be adjusted can be attached to the base plate, and the base body can be assembled to the front-rear adjusting plate so that the upper-lower position can be adjusted by the upper-lower adjusting screw.

[0007]

In the arm type hinge having such a structure, since the fixed base, the door base, the first arm and the second arm form a parallelogram link, the fixed base is fixed to the door fixed to the door base. The door can be opened and closed vertically from the closed state to the open state while moving in parallel with the front opening of the storage part.

Since spring means for urging the door in the closing direction and the opening direction is connected to the first arm or the second arm,
The door receives the force in the closing direction near the closed position and the force in the opening direction near the open position by the urging force of the spring means to open and close, but the narrowing of the parallelogram link when the door is closed. Since the angle of the corner portion is set to 10 ° to 15 °, the spring force of the spring means is not so strong, rattling at the time of closing the door is prevented, and the door is closed well without any gap. It is possible to open and close the door satisfactorily with a comparatively light force.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a cross-sectional view of a state in which a door 2 that is opened and closed in a vertical slide manner via an arm hinge is attached to an opening on the front surface of a storage unit 1 such as a cabinet. Reference numeral 3 is a fixed base of a hinge fixed to the inner side wall of the storage unit 1, and a pivot 8 and a pivot 9 are attached to an L-shaped metal plate.
Is provided and a spring retaining portion 11 of the coil spring 7 is provided. The hole of the shaft supporting portion supporting the pivot 8 is located in the upper portion of the fixed base 3, and the hole of the shaft supporting portion supporting the pivot 9 is located in the lower portion of the fixed base 3. As shown in FIG. The distance A is set equal to the distance A between the pivots 10 and 11 of the door base 4, which will be described later.

Reference numeral 5 denotes a first arm, which is formed in a dogleg shape such that its upper part is bent slightly outward, and the upper end of the first arm 5 is pivotally supported on the upper part of the fixed base 3 via a pivot 8. . As shown in FIG. 3, the pivotal support of the first arm 5 is such that a pivot 8 having a large-diameter head is fitted into a hole formed in the upper end of the first arm 5 via a plastic bush 20 to further form a hole. The plastic bush 21 and the washer 22 are fitted into the pivot 8 projecting from it, and the tip of the pivot 8 is fitted into the hole of the fixed base 3 to caulk and fix the tip of the pivot 8. As a result, the first arm 5 is rotatably supported on the fixed base 3 with an appropriate frictional resistance.

In the vicinity of the pivot 8 of the first arm 5,
Spring retaining portion 5a for retaining the coil spring 7 for biasing
Is provided, and the coil spring 7 is bridged between the spring retaining portion 5a and the retaining portion 23 provided on the fixed base 3. The first arm 5 rotates from the closed state as shown in FIG. 1 to the open state as shown in FIG. 6, but at this time, the coil spring 7 is
On the door closing side, the door 2 is urged in the closing direction with a dead point as a boundary when three points of the arm-side spring hooking portion 5a, the pivot 8 and the end hooking portion 23 are aligned. Then
On the opening side of the door, it is mounted so as to bias the door 2 in the opening direction.

Reference numeral 6 denotes a second arm, which is the first arm 5 described above.
The second arm 6 is formed in a curved shape with a smaller curvature, and the upper end of the second arm 6 is pivotally supported by the lower portion of the fixed base 3 via a pivot 9. The pivot of the second arm 6 is also the first arm 5 described above.
Similarly, a pivot with a large diameter head and a washer are used, a plastic bush is interposed, and the shaft is rotatably supported on the fixed base 3 with appropriate frictional resistance. In addition, as shown in FIG. 1, when the first arm 5 and the second arm 6 rotate,
The first arm 5 has a crossing relationship in a side view.
The positions of the second arm 6 and the second arm 6 are displaced in the direction of the paper surface of FIG.

On the other hand, a door base 4 is fixed to a lower portion inside a door 2 that closes the opening of the storage section 1. The door base 4 is
As shown in FIG. 2, FIG. 4, and FIG. 5, a base plate 12 fixed to the inside of the door, a front-rear adjustment plate 13 that is assembled to the base plate 12 so that the front-rear position can be adjusted, and a front-rear adjustment plate 13
And a base body 14 that is assembled so that its vertical position can be adjusted, and that connects and supports the lower ends of the first arm 5 and the second arm 6 via the respective pivots 10 and 11.

The base plate 12 is provided with a fixing portion having a fixing hole 12a formed in an upper portion, a central portion, and a lower portion, and two screw holes 12b are formed in an intermediate portion which is slightly floating with respect to the fixing portion. . The front-rear adjusting plate 13 is formed so as to be assembled on the base plate 12, has two holes 13a through which the two fixing screws 16 can be inserted, and further has a front-rear adjusting screw 17 screwed into the lower portion thereof. The screw hole 13b is formed. Further, a hole 13c for inserting a fixing screw is provided at the center, and a holding portion 13d for rotatably holding the vertical adjusting screw 18 is provided at a portion of the lower end portion bent at a right angle.

The base body 14 is formed by providing a side wall-shaped portion that rises up at a right angle in a side wall of a flat plate portion provided with a guide hole, and in the raised portion, the first arm 5 and the second arm 6 are formed. Is provided with a shaft support portion for connecting and supporting the lower end of the shaft via the respective pivots 10, 11. Further, two guide holes 14a are provided in the flat plate portion of the base body 14, and a large oval hole 14b is formed in the lower part thereof. Furthermore, the base body 14
At the lower end of the, the vertical adjustment screw 1
A screw hole 14c for screwing 8 is provided.

As shown in FIG. 4, the door base 4 covers the front and rear adjusting plates 13 on the base plate 12, and inserts the support pins 19 into the lateral holes provided in the upper part to fix the lower part of the front and rear adjusting plates 13. Support to move back and forth. Then, the base body 14 is superposed on the front-rear adjusting plate 13, two fixing screws 16 are inserted through the guide holes 14a, inserted into the holes 13a of the front-rear adjusting plate 13, and fixed to the screw holes 12b of the base plate 12. Assembling is performed by screwing in the screws 16. Further, the front-rear adjusting screw 17 is attached to the screw hole 13b of the front-rear adjusting plate 13.
The bottom end of the base body 14 with the tip of the base plate 12 brought into contact with the base plate 12, and the vertical adjustment screw 18 from below through the support portion 13d of the front-back adjustment plate 13.
Install by screwing into 4c.

As a result, when the front-rear adjusting screw 17 is turned with the two fixing screws 16 loosened, the front-rear adjusting plate 13 moves in the front-rear direction with respect to the base plate 12 about the support pin 19 on the upper portion thereof. Then, when the vertical adjustment screw 18 is turned, the base body 14 moves in the vertical direction with respect to the base plate 12 and the front-back adjustment plate 13, and the front-back position and the vertical position can be adjusted. After the adjustment, the fixing screw 16 is tightened to fix the front-rear adjusting plate 13 and the base body 14 to the base plate 12.

On the other hand, the first arm 5 is pivotally supported by a bearing portion above the base body 14 of the door base 4 via a pivot 10, and the bearing portion below the base body 14 is supported by a pivot 11. The second arm 6 is pivotally supported. Similarly to the above, the pivots of the lower parts of the first arm 5 and the second arm 6 also use a pivot with a large diameter head and a washer, and a plastic bush is interposed to rotate with appropriate frictional resistance. Base body 1 possible
It is rotatably supported by the fulcrum of No.

FIG. 7 shows the positions and loci of the pivots 8 to 11 in a side view of the arm type hinge corresponding to FIG. 1. As shown in FIG. The distance B between the pivots 8 and 10 and the distance B between the upper and lower pivots 9 and 11 of the second arm 6 are set to be equal.
Further, as described above, the pivots 8 and 9 on the fixed base 3 are
Distance A of the pivot 10 on the base body 14 of the door base 4.
Is set equal to the distance A between the two pivots 8 and 9 of the fixed base 3 and the door base 4.
Between the two pivots 10 and 11 and the first arm 5 and the second arm 6 form a parallelogram link.

Therefore, when the two pivots 8 and 9 on the fixed base 3 are used as fulcrums, the two pivots 10 and 11 attached to the door base 4 are rotated in the vertical direction. 10, 11 and the door base 4 perform parallel movement. Therefore, the door 2 fixed to the door base 4 is moved up and down in parallel with respect to the front opening of the storage unit 1 to which the fixed base 3 is fixed, and is opened and closed.

By the way, in the present arm type hinge forming the parallelogram link, as shown in FIG. 7, the narrow angle portion of the parallelogram with the door 2 closed, that is, the narrow angle portions of the pivots 8 and 11 is formed. The angle θ is 10 ° to 15 °, preferably 11 ° to
It is set at 14 °.

The angle θ between the narrow angle portions of the parallelogram with the door 2 closed, that is, the narrow angle portions of the pivots 8 and 11 is 10 ° to 1 °.
By setting 5 °, preferably 11 ° to 14 °,
It is possible to prevent rattling of the door 2 when the door 2 is closed and to close the door 2 satisfactorily.

The angle θ between the narrow angles of the pivots 8 and 11 is 10
If it is less than °, the biasing force of the coil spring 7 is less likely to exert a force to attract the door base 4, that is, the door 2 to the fixed base 3 side, that is, the storage portion 1 side, and the door 2 tends to rattle when closed. Further, when the angle θ of the narrow angle portion between the pivot 8 and the pivot 11 exceeds 15 °, the spring force of the coil spring is applied to the door 2 too much when it is closed, which makes it difficult to open the door 2 and the storage portion 1 The volume occupied by the arm hinge in the inside increases, and there arises a problem that the volume inside the storage section 1 is narrowed.

On the other hand, the angle θ of the narrow angle portion of the parallelogram link
Even if the angle is less than 10 °, if the coil spring 7 is set so as to increase the biasing force, rattling of the door at the time of closing can be prevented, but in that case, the biasing force of the coil spring 7 is increased. When opening the closed door, it is necessary to apply a large opening force against the urging force of the coil spring 7. Further, when the door is lifted upward to be in the open state, the urging force of the coil spring 7 acts on the side holding the open state, and therefore, even when the door in the open position is closed, the coil spring is not attached. It is necessary to apply a closing force to the door against the power, and a large operating force is required to open and close the door. Therefore, in order to open and close the door 2 with a smaller force, it is necessary to set the angle θ of the narrow-angle portion of the parallelogram link to 10 ° or more as described above.

Further, in this arm type hinge, since the front and rear adjusting screw 17 of the door base 4 can be turned to finely adjust the front and rear position of the base body 14, that is, the door 2, the door 2
By making fine adjustments to the front and rear positions, it is possible to further eliminate rattling of the door 2 in the closed state. In this front-back adjustment, as shown in FIG. 2, when the front-rear adjustment screw 17 is turned, the front-rear adjustment plate 13 and the base body 14 move in the front-rear direction with respect to the base plate 12 with the support pin 19 at the upper portion as an axis. That is, the base plate 12 and the door 2 move in the front-rear direction relative to the base body 14, and their positions are finely adjusted. Further, when finely adjusting the vertical position when the door 2 is closed, the vertical adjustment screw 18 is turned. As shown in FIG. 2, when the vertical adjustment screw 18 is turned, the base plate 12 and the front-back adjustment plate 1 are rotated.
3, the base body 14 moves vertically, that is, the front-back adjustment plate 13, the base plate 12, and the door 2 move vertically relative to the base body 14, and the vertical position of the door 2 is finely adjusted. To be done.

In the drawings, the arm type hinge having the above-mentioned structure is described as being mounted on the right side of the storage unit 1, but the same structure is formed on the left side of the storage unit 1 symmetrically. It is also possible to attach the arm type hinges and to open and support the door with one or more pairs of hinges.

[0027]

As described above, according to the arm type hinge of the present invention, the fixed base, the door base, the first arm,
And the angle of the narrow angle portion in the state in which the door is closed in the parallelogram link formed by the second arm is 10 ° to 1
Since it is set to 5 °, rattling at the time of closing the door can be prevented without increasing the urging force in the closing direction and the urging force in the opening direction by the spring means, and the door can be opened / closed satisfactorily. can do. Further, since the front-rear position when the door is closed can be easily adjusted with the front-rear adjustment screw, this also makes it possible to adjust the rattling and the clearance when the door is closed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a storage unit to which an arm hinge according to an embodiment of the present invention is attached.

FIG. 2 is an enlarged cross-sectional view near a door base 4.

FIG. 3 is an exploded view showing a coupled state of a pivot 8 of the first arm.

FIG. 4 is an exploded side view of a door base 4.

FIG. 5 is an exploded front view of a door base 4.

FIG. 6 is a cross-sectional view of the storage section with the door opened.

FIG. 7 is an explanatory diagram showing a parallelogram link of an arm hinge.

[Explanation of symbols]

1-Storage 2-door 3-fixed base 4-door base 5-first arm 6-second arm 7-coil spring 8-11-Axis 12-base plate 13-Front-back adjustment plate 14-base plate

Claims (3)

[Claims] 1. An arm-type hinge for opening and closing / supporting a door by moving a door vertically in parallel with respect to a storage part, wherein a fixed base is fixed to the storage part, and a door base is fixed to the door, and both ends of the first arm. And both ends of the second arm are substantially parallel to each other, and are linked to the upper and lower portions of the fixed base and the upper and lower portions of the door base via pivots, respectively, the fixed base, the door base, and the first arm. , And a parallelogram link is formed by the second arm, and spring means for urging the door in the closing direction and the opening direction is connected to the first arm or the second arm, and when the door is closed, An arm hinge in which the angle of the narrow angle portion of the parallelogram link is set to 10 ° to 15 °. 2. The door base is provided with a base plate fixed to the inside of the door, and a base body that connects and supports lower ends of the first arm and the second arm via respective pivots. The arm type hinge according to claim 1, wherein the base body is attached to the base plate so as to be positionally adjustable in the front-rear direction and the vertical direction. 3. A front / rear adjustment plate capable of adjusting a front / rear position is attached to the base plate, and the base main body is attached to the front / rear adjustment plate so that a vertical position thereof can be adjusted by a vertical adjustment screw. The arm-type hinge according to claim 2.