JPH0337357Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a hinge, and particularly to one used when attaching a door to furniture.

(Prior Art) Conventionally, as this type of hinge, for example, a main body and a rotating body are rotatably connected by a first arm and a second arm, and the rotating body can be opened and closed with respect to the main body. , a protruding piece is provided protrudingly on the one arm, and a spring is provided on the main body that engages with the protruding piece to bias the protruding piece and lock the rotating body in an open/closed state when the rotating body is opened or closed. There are some with a similar structure.

Further, as described in Japanese Utility Model Application Publication No. 58-118167, the main body and the rotating body are rotatably connected by a first arm and a second arm via respective shafts, An engaging rod is horizontally suspended on the movable end of the first arm extending toward the main body, and the intermediate portion of the L-shaped engaging body is rotated around a shaft that supports the end of the second arm on the main body side. The engaging rod is movably supported on the upper end of the vertical portion of the engaging body, and the engaging rod is engaged with and disengaged from the top surface of the synthetic resin cap at the upper end of the vertical portion of the engaging body, and the horizontal portion of the engaging body is connected to the side surface of the vertical portion. A structure in which a compression spring is interposed between the main body and the catching force is adjusted by an adjustment screw is known.

(Problem to be solved by the invention) In the structure in which the spring is directly engaged with the protruding piece, since the spring engages with the protruding piece and biases it, the rotation of the rotating body causes the spring and the protruding piece to disengage. They often rubbed against each other, producing unpleasant frictional noises, and the highly rigid spring caused the protruding piece to wear out, causing the spring to loosen its lock on the rotating body.

In addition, in the structure described in the above publication, since the synthetic resin cap is attached to the upper end of the vertical portion of the engaging body, it is uncomfortable even if the engaging rod rubs against the synthetic resin cap due to the rotation of the rotating body. Although it is possible to prevent the occurrence of friction noise and wear of the upper end of the vertical part of the engaging body,
There are problems in that the number of parts is large, the structure is complicated, and the cost is increased because an engaging body and a means for biasing the engaging body are required separately from the first and second arms.

The present invention was devised in view of the above points, and has a simple structure with a small number of parts, which eliminates unpleasant frictional noises when the rotating body is opened and closed, and furthermore, the arm is biased by a spring. It is an object of the present invention to provide a hinge in which the protruding piece is not worn out and the lock of the rotating body is not loosened.

[Structure of the idea]

(Means for Solving the Problems) The hinge of the present invention includes a main body attached to the side wall of furniture, a rotating body attached to the door of the furniture, and a tip of the main body that rotates around one end of each. a first arm that is rotatably supported and whose other end is rotatably supported on the rotary body; and a second arm that is disposed inside the first arm; A protruding piece protruding from one end of the second arm and a shaft attached to the vicinity of the tip of the main body engage with the protruding piece to bias the protruding piece when the rotating body is opened and closed. A synthetic resin covering is fitted and attached to the protruding piece of the second arm, and a curved surface to which the spring is engaged is attached to the outer surface of the covering. It was formed.

(Function) In the hinge of the present invention, when the rotating body is closed, the spring presses the protruding piece from one side of the covering that covers the protruding piece through the covering, so that the rotating body closes. Furthermore, when the rotating body is opened, the protruding piece is pressed and biased from the other side of the covering that covers the protruding piece by a spring through the covering, so that the rotating body is locked in the open state. Ru.

When the door is opened and closed, the rotating body is rotated to open and close relative to the main body, and at this time, the protruding piece of the second arm covered by the covering body rotates while pushing the spring through the covering body. . In this case, the curved surface of the cover and the spring rub against each other, but since the cover is made of synthetic resin, the coefficient of friction is small, and the friction between the two is good, allowing the door to open and close smoothly and making it uncomfortable. No fricative noise is generated. In addition, since the protruding piece is covered with a covering and does not directly engage with the spring, the protruding piece will not be worn out by the spring, and the coating also has a small coefficient of friction, so it is difficult to wear, and therefore the protruding piece The biasing force applied by the spring does not loosen.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

This hinge connects a main body 3 attached to the inner surface of a side wall 1 of furniture etc. via a fixture 2, and a rotating body 5 attached to the inner edge of a door 4 of furniture etc. to a first arm 6 and this first arm 6. The rotating body 5 is rotatably connected to the first arm 6 by a second arm 7 disposed inside the main body 3, and the rotating body 5 is rotated to open and close with respect to the main body 3. The attached door 4 is designed to be opened and closed.

The main body 3 includes an elongated substrate 13 having a notch 11 at one end and a screw hole 12 in the middle.
A pair of side plates 14 are formed on both sides in the width direction to form a substantially U-shaped cross section.

Further, the rotating body 5 has a cap body 21 formed in a concave shape and flange portions 22 formed on both sides of the cap body 21, and a screw hole (not shown) is formed in each of the flange portions 22. The rotary body 5 is attached to the inner surface of the door 4 by screws inserted into the door 14 through screw holes in the flanges 22 on both sides.

Furthermore, one end of the first arm 6 is rotatably supported on a shaft 31 installed between the side plates 14 near the substrate 13 at the tip of the main body 3, and The other end of the arm 6 is rotatably supported on a shaft 32 on one side of the cap 21 of the rotating body 5 near the inner bottom of the cap 21 . Further, the second arm 7
is rotatably supported at one end by a shaft 33 installed between the side plates 14 near the opening of the U-shaped cross section at the distal end of the main body 3. The end portion of the rotating body 5 is rotatably supported on a shaft 34 on one side of the cap body 21 near the opening of the cap body 21 .
The rotary body 5 is connected to the main body 3 via a link mechanism consisting of first and second arms 6 and 7 so as to be rotatably openable and closable, and when the rotary body 5 is in the closed state, the cap of the rotary body 5 is opened and closed. The tip of the main body 3 and the first and second arms 6, 7 are housed within the body 21.

In addition, the shaft support at one end of the second arm 7 has a portion above the second arm 7 in a direction that intersects with the second arm 7.
Further, a protruding piece 41 protruding toward the first arm 6 side is integrally formed, and this protruding piece 4
The tip of the second arm 7 is bent downward toward the other end of the second arm 7.

Further, reference numeral 43 denotes a covering made of synthetic resin, and this covering 43 has an arc-shaped curved surface 42 formed on its outer surface, that is, on its upper surface, and the protruding piece 41
It is formed with a cut groove 44 having the same shape as the side surface shape. The covering body 43 is attached to the protruding piece 41 by being fitted from the side of the protruding piece 41 through the groove 44 thereof.

Also, the side plate 1 near the tip of the main body 3
A shaft 51 is installed between the shafts 51 and 4, and a torsion coil spring 52 is wound around and attached to the shaft 51. One end of the torsion coil spring 52 is locked to the inner surface of the base plate 13 of the main body 3, and this torsion A curved protrusion formed at the tip of the other end of the coil spring 52 is engaged with a curved surface 42 of a cover 43 that covers the protrusion piece 41 of the second arm 7. The protruding piece 41 covered by the covering body 43 is urged by the torsion coil spring 52, and the curved protrusion at the other end of the torsion coil spring 52 moves on the curved surface 42 of the covering body 43. It is designed to slide.

The fixture 2 is attached to the side wall 1 of the furniture with wood screws 61, and the main body 3 is fixed with screws 62 screwed onto the fixture 2 through the cutout 11 and screw hole 12 of the base plate 13. .

In this structure, the curved protrusion at the other end of the torsion coil spring 52 allows the cover 43 to be removed from one side of the cover 43 covering the protruding piece 41 when the rotating body 5 is closed. Through the protruding piece 41
The rotary body 5 is locked in the closed state by being pressed and biased, and when the rotary body 5 is opened, a covering body covering the protruding piece 41 is formed by a curved protrusion at the other end of the torsion coil spring 52. The rotating body 5 is locked in the open state by pressing the protruding piece 41 from the other side of the rotating body 43 through the cover 43.

When the door 4 is opened and closed, the rotating body 5 moves to the main body 3.
At this time, the protrusion piece 41 of the second arm 7 covered by the sheath 43 pushes the curved protrusion at the other end of the torsion coil spring 52 through the sheath 43. Rotate while doing so. In this case, the curved surface 42 of the covering 43 and the curved protrusion at the other end of the torsion coil spring 52 rub against each other, but since the covering 43 is made of synthetic resin, its coefficient of friction is small, and the degree of friction between the two is small. The door 4 can be opened and closed smoothly, and no unpleasant friction noise is generated.

Furthermore, since the protruding piece 41 is covered with a covering 43 and does not directly engage with the curved protrusion at the other end of the torsion coil spring 52, the protruding piece 41 will not be worn out by the curved protrusion. Moreover, since the coating 43 has a small coefficient of friction, it does not easily wear out, so that the biasing force of the torsion coil spring 52 applied to the protruding piece 41 does not loosen.

Note that during assembly, the covering 43 can be attached from the side of the protruding piece 41, so attachment can be easily performed.

[Effect of idea]

According to the present invention, a protruding piece is provided at one end of the second arm disposed inside the first arm, a synthetic resin covering is fitted and attached to the protruding piece, and the synthetic resin covering is attached to the protruding piece. Since the spring attached to the vicinity of the tip of the main body is engaged with the curved surface formed on the outer surface of the covering, an unpleasant frictional sound is generated when the spring and the covering rub against each other as the rotating body rotates open and close relative to the main body. There is no friction, the spring and covering slide smoothly,
Therefore, the door having the rotating body can be smoothly rotated to open and close. In addition, since the spring does not directly engage the protruding piece, the protruding piece does not wear out, and the covering is easy to rub and has little wear, which weakens the biasing force applied by the spring and locks the rotating body in the open/closed state. never loosens. In addition, since it can be set simply by engaging the spring with the curved surface of the cover of the protruding piece, the assembly work can be carried out simply and easily without adjusting the catching force. Furthermore, since the covering body is attached by fitting into the protruding piece, it can be easily attached to the protruding piece. Further, the protruding piece for attaching the covering body is provided protrudingly from one end of the second arm, and the spring is directly engaged with the curved surface of the covering body of this protruding piece to bias the covering body. Compared to a structure in which an intermediate member separate from the first and second arms is provided and the arms are urged into engagement, the number of parts is reduced, the structure is simple, and costs can be reduced.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a plan view of the hinge in the closed state, Fig. 2 is a vertical side view of the hinge, Fig. 3 is a longitudinal side view of the hinge in the open state, and Fig. 4 is a plan view of the hinge in the closed state. FIG. 5 is a perspective view of the second arm and the covering, FIG. 5 is a side view of the covering, and FIG. 6 is a bottom view thereof. DESCRIPTION OF SYMBOLS 1... Side wall, 3... Main body, 4... Door, 5... Rotating body, 6... First arm, 7... Second arm, 31, 32, 33, 34, 51... Axis, 41
... protruding piece, 42 ... curved surface, 43 ... covering body,
52...Spring.

Claims (1)

[Scope of utility model registration request] a main body to be attached to a side wall of furniture, a rotating body to be attached to a door of the furniture, one end of each of which is rotatably supported on a tip of the main body, and the other end of each is rotatably supported by the rotating body. a first arm rotatably supported on a shaft; a second arm disposed inside the first arm; a protruding piece protruding from one end of the second arm; a spring attached to the vicinity of the tip of the main body by a shaft, the spring engages with the protruding piece to bias the protruding piece, and locks the rotating body in an open/closed state when the rotating body is opened/closed;
A hinge characterized in that a covering made of synthetic resin is fitted and attached to the protruding piece of the arm, and the outer surface of the covering is formed with a curved surface that is engaged with the spring.