JPH0446053Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention consists of a door for a cabinet body with an open front, which is configured to be horizontally rotatable and movable back and forth along the outer surface of the cabinet body. This invention relates to the improvement of door devices for cabinets.

[Conventional technology]

In a cabinet with a horizontally rotating door, the door should not interfere with the opening and closing of the door in an adjacent cabinet, or the door should not interfere with work when putting items in and out of the cabinet with the door open. In order to do this, a support rail extending horizontally is provided on the inner surface of the door, and the support rail is slidably attached to a hinge piece pivoted to the cabinet body for horizontal rotation.
The door is constructed so that it can be pushed in along the outer surface of the cabinet body when opened 90 degrees.

In that case, in order to prevent the door from accidentally sliding horizontally when pulled out from the cabinet body, or from unexpectedly protruding when the door is pushed in, there is a A posture holding mechanism is provided to selectively hold the robot in the vertical position.

As an example, in Utility Model Publication No. 54-28367,
A link rod extending substantially vertically along the inner surface of the door is pivotally attached to the hinge piece at its lower end so that the link rod can rotate along the inner surface of the door, and a guide roller is pivoted to the upper end of the link rod. On the other hand, a guide rail, into which a guide roller attached to the link rod is slidably fitted, is provided on the inner surface of the door at a midway point between one side and the other side of the door so as to extend along the vertical direction. The structure is such that the link rod switches between a forward tilted position and a backward tilted position when the door is moved back and forth.
Furthermore, a coiled spring is installed between the upper end of the link rod and a portion of the inner surface of the door below the guide rail, and the coil spring pulls and biases the upper end of the link rod downward. describes a device in which the door is selectively held in a pulled out state and a pushed in state by selectively biasing the link rod into a forward leaning position and a backward leaning position.

[The problem that the idea aims to solve]

However, in this prior art, since the coiled spring remains exposed to the outside, not only is it easy for people's clothes to get caught between the spring lines when the door is open, but also when the door is moved back and forth. When the ring rod rotates, the link rod and spring will cross each other, so when moving the door back and forth, there is a risk of people's clothes or objects getting caught between the link rod and the spring. Yes, there were safety issues.

In addition, in this prior art, the link rod, guide rail, and spring are each arranged in separate parts of the door, so a large space is required to install the link rod, guide rail, and spring, and the posture holding mechanism is Along with the increase in size, there was also the problem that each member was not integrated as a whole and the appearance was not good.

Furthermore, when assembling the cabinet, the door must be attached to the cabinet body, and then the link rods, guide rails, and springs must be attached separately, which makes assembling the cabinet time-consuming. There was also a problem with what I said.

The object of the present invention is to provide a door device that solves these problems.

[Means to solve the problem]

In order to achieve this object, the present invention is such that a hinge piece is horizontally rotatably pivoted to the front end of a side plate of a cabinet body with an open front, and a hinge piece is horizontally slidable on the inner surface of a door relative to the cabinet body. In the cabinet, the door is provided with a movably attached support rail, and the door is configured to be horizontally rotatable with respect to the cabinet body and to be movable back and forth along the outer surface of the cabinet body. The lower end of the link rod, which is formed to be extendable and retractable by slidably fitting an inner rod concentric with the outer cylinder extending substantially vertically along the inner surface of the door, is perpendicular to the inner surface of the door. The upper end of the link rod is pivoted so as to be rotatable with a pin extending in the direction of the door, and the upper end of the link rod is attached to the door so that the link rod expands and contracts as the door moves back and forth and switches between a forward tilted posture and a backward tilted posture. A spring is pivotally attached to the inner surface and is further disposed inside the link rod so as to separate the outer cylinder and the inner rod in the axial direction and bias the link rod in the extension direction.

[Functions and effects of the idea]

With this configuration, when the door is pulled out to the front of the cabinet body, the link rod in the forward tilting position is biased in the extension direction by the spring, and the horizontal component of the spring force causes the door to move in the pulling direction. The door is held pulled out from the cabinet body because it is pressed by the cabinet body. Conversely, when the door is pushed in along the outer surface of the cabinet body, the link rod in the backward tilting position is moved in the direction of extension by the spring. When the door is biased, the horizontal component of the spring force pushes the door in the push-in direction, so the door is held in the pushed-in position along the outer surface of the cabinet body. It is possible to prevent the door from sliding horizontally when it is pulled out in front of the cabinet, or from unexpectedly protruding when the door is pushed in along the outer surface of the cabinet body.

The spring that selectively holds the door in the pulled out state and the pushed in state is built into the link rod, and since the spring is not exposed to the outside, people's clothes or other objects may not be exposed to the spring. There is no chance of pinching or pinching of human clothing or the like between the link rod and the spring, and safety can be greatly improved.

In addition, since it has a simple form with a spring built into the link rod, the overall structure is rod-shaped and extremely compact, reducing installation space and improving the appearance. When assembling, attach the lower end of the link rod containing the spring to the hinge piece.
All you have to do is pivot the top end to the inside of the door,
Compared to the prior art, in which the link rod, guide rail, and spring are separately attached to the inner surface of the door, the effort required to assemble the cabinet can be significantly reduced.

〔Example〕

Next, an embodiment of the present invention will be described based on drawings in which it is applied to a double-door cabinet.

In the figure, numeral 1 indicates the left and right side plates 2, 2 and the top plate 3.
and a front-opening cabinet body having a base plate 4; and reference numeral 5 denotes a door for opening and closing the front surface of the cabinet body 1.

left and right side plates 2 of the cabinet body 1;
A pair of hinge devices 8, each consisting of a hinge piece 8b horizontally rotatably pivoted to a fixed piece 8a, are arranged at the front end of each of the upper and lower hinge devices 8, 8 at an appropriate distance from each other vertically.
While fixing each fixing piece 8a to the side plate 2,
On the inner surface of the door 5, there is a cross section approximately C extending horizontally at two upper and lower portions corresponding to each of the hinge pieces 8b.
A letter-shaped support rail 6 is fixed, a longitudinal slider 7 is slidably inserted in the support rail 6 along the horizontal direction, and the slider 7 is fixed to the hinge piece 8b. This allows the door 5 to be horizontally rotatable and
It is designed so that it can be pushed in along the outer surface of the cabinet body 1 in the open state.

Guide rails 9, 9' having a U-shaped cross section are fixed to the upper and lower edges of each side plate 2 in the cabinet body 1 to guide the back and forth movement of the door 5. Rollers 10, 10' that roll within the guide rails 9, 9' are provided on both upper and lower end surfaces of the closer end.

Further, as shown in FIG. 2, the guide rails 10, 10' project forward beyond the front end surface of the cabinet body 1, and
By forming the protruding portion 10' into an arc shape in plan view, the door 5 in the closed state can be attached to the cabinet body 1.
This prevents the door from sliding outward in the frontage direction, and allows the door 5 to be opened 90 degrees and then pushed in along the outer surface of the cabinet body 1 smoothly.

Reference numeral 11 indicates a link rod, and the link rod 11
is an outer cylinder 1 extending vertically along the inner surface of the door 5.
1a, a cylindrical inner rod 11b concentric with the inner rod 11b is slidably inserted into the inner rod 11b so that a part of the inner rod 11b is exposed, so that the inner rod 11b can be expanded and contracted.
The outer cylinder 11a is located downward and the inner rod 11b is arranged so as to protrude upward, and the lower end of the outer cylinder 11a (that is, the lower end of the link rod 11) is aligned with the hinge piece 8b of the door 5. The link rod 11 can rotate along the inner surface of the door 5 around its lower end by being pivotally connected by a pin 15 extending in a direction perpendicular to the inner surface.

Further, the upper end of the inner rod 11b (that is, the upper end of the link rod 11) is placed at a substantially intermediate position along the width direction of the door 5 on the inner surface of the door 5, and a pin 16 extending in a direction perpendicular to the inner surface of the door 5 is provided. When the door 5 is moved back and forth along the outer surface of the cabinet body 1 by pivoting at the
As the inner rod 11b and the inner rod 11b slide relative to each other along their axial directions, they expand and contract as a whole and rotate around their lower ends, as shown by A, B, and C in FIG. The device is configured to switch between a forward leaning posture and a backward leaning posture with a vertically extending posture in between.

Furthermore, an elongated hole 13 extending in the axial direction is bored in substantially the upper half of the inner rod 11b, while the outer cylinder 11a
By providing a pin 12 that slidably passes through the elongated hole 13 of the inner rod 11b, and installing a tension spring 14 between the pin 12 and the lower end of the inner rod 11b, the inner rod 11b In other words, the link rod 11 is urged in a direction in which the link rod 11 is extended so that the outer cylinder 11a and the outer cylinder 11a are urged away from each other in the axial direction.

In the above configuration, when the door 5 is pulled out along the outer surface of the cabinet body 1, the link rod 11 is biased in the extension direction by the spring 14 in a forward-inclined posture, so that the horizontal force of the spring 14 is applied. Since the door 5 is urged to protrude from the cabinet body 1 by the component force, the door 5 is held in a pulled out state from the cabinet body 1, and conversely, the door 5 is pushed along the outer surface of the cabinet body 1. In the pushed-in state, the link rod 11 is tilted backwards and is biased in the extension direction by the spring 14, and the horizontal force of the spring 14 biases the door 5 toward the back of the cabinet body 1. The door 5 is kept pushed into the cabinet body 1.

Since the spring 14 is disposed inside the hollow part of the link rod 11 and the spring 14 is not exposed to the outside, it is not necessary to hook the spring 14 with a clothes rest as in the prior art, or attach it to the link rod 11. There is no chance of clothes getting caught between the springs 14, and since the overall shape is compact, the installation space can be reduced and the appearance can be improved.Moreover, the cabinet can be assembled easily. In this case, the spring 14 is built in the link rod 11 in advance, and the link rod 11
Since it is only necessary to attach the lower and upper ends of the cabinet to the hinge piece 8b and the inner surface of the door 5, the effort required to assemble the cabinet can be greatly reduced.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the cabinet, FIG. 2 is a plan view, and FIG.
FIG. 4 is a cross-sectional view taken from - in FIG. 3. 1... Cabinet body, 2... Side plate, 5...
Door, 6... Support rail, 7... Slider, 8... Hinge device, 8b... Hinge piece, 11... Link rod, 1
1a...outer cylinder, 11b...inner rod, 14...spring,
15, 16... Pins for pivot points.

Claims (1)

[Scope of utility model registration request] A hinge piece is horizontally rotatably pivoted to the front end of a side plate of a cabinet main body with an open front, while a hinge piece is horizontally rotatably mounted on an inner surface of a door relative to the cabinet main body.
In the cabinet, the hinge piece is provided with a support rail that is horizontally slidable, and the door is configured to be horizontally rotatable with respect to the cabinet body and to be movable back and forth along the outer surface of the cabinet body, The lower end of the link rod is formed on the hinge piece so as to be extendable and retractable by slidably fitting an inner rod concentric with the outer cylinder extending substantially vertically along the inner surface of the door. The door is rotatably pivoted by a pin extending in a direction perpendicular to the inner surface of the door, and the link rod expands and contracts as the door moves back and forth, allowing the upper end of the link rod to take forward and backward leaning positions. The spring is pivotably attached to the inner surface of the door so as to be switched to the inner surface of the door, and further, a spring is disposed inside the link rod so as to separate the outer cylinder and the inner rod in the axial direction and bias the link rod in the extension direction. A door device for a cabinet characterized by: