JPH09186468A - Opening/closing and containing mechanism for door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a simple mechanism for opening/closing and containing a door smoothly without requiring any external force by preventing the door from inclining against a guide rail at the time of opening/closing or containing. SOLUTION: When a door 1 is turned by 90 deg. to the right around shafts (having race track like cross-section) fitted in central holes 2B, 3B of rotation from a closed state shown by a dot and dash line, the door 1 is brought into horizontal state. Subsequently, the door 1 is pulled by a tension spring 12 and the shafts 1A, 1B are guided by guide holes 2A, 3A toward a full-open position through a position shown by a solid line. When the shafts 1A, 1B abut against the right end of guide holes 2A, 3A, the door 1 arrives at the full-open position. Wires 4, 5 are secured, at the opposite ends thereof, to the shafts 1A, 1B through pulleys 6-11 fixed to guide rails 2, 3. The wire 4, 5 is applied with a tension.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a rack for an operation panel,
The present invention relates to a mechanism for opening and closing a door such as a screen portion of a projection television receiver.

[0002]

2. Description of the Prior Art Japanese Utility Model Laid-Open No. 2-13375 discloses a pair of upper and lower guide rails attached to the inner surfaces of both side plates of a cabinet, and grooves rotatably supported at the front and rear ends of these guide rails. Attached rollers, a pair of movable supports on both sides which are vertically supported by the pair of upper and lower guide rails and guided in the front-rear direction through the guide rollers, respectively, and are hung on front and rear grooved rollers of the upper and lower guide rails. An endless wire that has an upper horizontal side and a lower horizontal side that run in the same direction, and that is attached to the upper and lower parts of the movable support and that connects the upper and lower horizontal sides of the wire by connecting them vertically. It is rotatably supported by a pair of connecting fittings and the front end of the movable support through a pair of upper and lower hinges, and is pushed to be housed laterally in the cabinet and pulled. Drawn forward, the door housing device cabinet having a bilateral pair of doors that are closed rotated to cover the front cabinet is described by the teeth.

[0003]

The conventional cabinet door storage device is capable of smoothly opening and closing the door by preventing inclination of the guide rail when the door is opened and closed. However, since the door is attached to the movable support by a hinge, the mechanism is complicated, and the door is opened and closed by an external force such as the force of the operator's fingers, which is inconvenient.

Therefore, the present invention improves the above-mentioned drawbacks of the prior art, prevents inclination of the door with respect to the guide rail when the door is opened / closed, and enables smooth opening / closing, as well as hinges and the like. It is intended to simplify the structure by omitting the complicated mechanism, and to prevent an external force from being required to open or close the door.

[0005]

The present invention adopts the following means in order to solve the above problems.

(1) A shaft having a non-circular cross section is provided on both sides of one end of the door, and a guide hole and a rotation center hole wider than the guide hole are continuously provided on the guide rails arranged on both sides of the door.
The shaft is configured to be non-rotatable in the guide hole so as to be rotatable in the rotation center hole, and a wire is tensioned and joined to both sides in the moving direction of the shaft through a pulley,
A door opening / closing mechanism that biases the door in one direction.

(2) The door opening / closing mechanism according to (1), wherein the shaft has a cross section in the form of a track and the rotation center hole has a circular shape.

(3) The door opening / closing mechanism according to (1), wherein the means for urging the door in one direction is a tension spring.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a door opening / closing mechanism of the present invention will be described with reference to the drawings.

In FIG. 1, a door 1 has shafts 1A and 1B on both side surfaces of one end thereof, and these shafts 1A and 1B are guide holes of guide rails 2 and 3 arranged on both sides of the door 1. 2A,
It is set in each 3A. The position of the solid line of the door 1 in FIG. 1 indicates a state in which the door 1 is being opened. The cross section of the shafts 1A and 1B has the shape of a competition track.

The position of the door 1 indicated by the chain double-dashed line in FIG. 1 shows a vertically oriented closed state. Circular center holes 2B and 3B are continuously provided at the left ends of the guide holes 2A and 3A, respectively.

First, when the door 1 is closed and rotated 90 degrees to the right around the shafts 1A and 1B fitted in the rotation center holes 2B and 3B, the door 1 changes its position to the horizontal state. Next, the door 1 is pulled by the other end of the tension spring 12 whose one end is locked to the fixed point 13, the shafts 1A and 1B are guided by the guide holes 2A and 3A, and the position shown by the solid line in FIG. Move towards a fully open position. Shaft 1A, 1B
Is in contact with the right ends of the guide holes 2A and 3A, the door 1 is
Reach the fully open position.

When the door 1 is closed, the shafts 1A, 1
Since the wide flat portion of B faces the narrow guide holes 2A and 3A, even if the tension of the tension spring 12 is working, the door 1 is
Does not move left or right. Therefore, no trouble occurs.

Two wires 4 and 5 are fixed to the shafts 1A and 1B of the door 1, respectively. The wires 4 and 5 are pulleys 6 and 7 attached to the guide rails 2 and 3,
Both ends of the shafts 1A, 1 through 8, 9, 10, 11 respectively.
B is fixed. Tension is applied to the wires 4 and 5.

When the door 1 is opened and closed, the door 1 is tilted due to the imbalance of insertion force / drawing force or frictional force generated between the shafts 1A, 1B and the guide holes 2A, 3A. If the door 1 is not parallel to the guide rails 2 and 3, a force is generated to keep the tension of the wires 4 and 5 constant. Therefore, the inclination of the door 1 is canceled and the guide rails 2 and 3 are canceled. 3 can be moved in parallel.

[0016]

As is apparent from the above description, according to the present invention, the following effects can be achieved.

(1) When the door is opened and closed, the inclination of the guide rail with respect to the guide rail can be canceled to smoothly open and close the door.

(2) The door can be opened and closed by a simple mechanism without requiring a complicated mechanism such as a hinge used in the prior art.

(3) No external force is required because the driving force of the spring or the like is used to open or close the door.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of a door opening / closing mechanism of the present invention.

[Explanation of symbols]

 1 Door 1A, 1B Shaft 2, 3 Guide rail 2A, 3A Guide hole 2B, 3B Rotation center hole 4,5 Wire 6,7,8,9,10,11 Pulley 12 Tension spring 13 Fixed point

Claims (3)

[Claims] 1. A shaft having a non-circular cross section is provided on both sides of one end of a door, and a guide hole and a rotation center hole wider than the guide hole are continuously provided on guide rails arranged on both sides of the door. The shaft is configured to be rotatable in the rotation center hole so as not to be rotatable in the guide hole, and the wires are tensioned and joined via pulleys on both sides in the moving direction of the shaft, and the door is provided. A door open / close mechanism characterized by urging the door in one direction. 2. The door opening / closing mechanism according to claim 1, wherein a cross section of the shaft has a track shape for competition and the rotation center hole has a circular shape. 3. The door opening / closing mechanism according to claim 1, wherein the means for urging the door in one direction is a tension spring.