JP2001149187A - Apparatus for opening/closing door of case provided with upward opened door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for opening/closing a door of a case provided with an upward opened door capable of simply, securely maintaining an opened state of a door body even in a use of a gas spring for helping the door body open and having no obstruction in loading or unloading of an object in a box type case having a housing space inside a case body and the upward opened door body on an upper part of the case body. SOLUTION: A back edge of the door body 2 is rotatable by a hinge 3. The gas spring 4 of which a lower edge is pivoted inside a side plate part 7 of the case body 1 is introduced upward through a lengthwise slit 8 formed on the upper face of the side plate part and the upper end thereof is pivoted on a middle part of the door body. Stopper means 5 are provided in proximity to the lengthwise slit for retaining movement of the gas spring in the forward direction of the slit when the door body is opened upward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing device for a case with an upward opening door, and more particularly, to a case with an upward opening door for accommodating and displaying valuable works of art in museums and art museums. The present invention relates to a switchgear.

[0002]

2. Description of the Related Art Conventionally, in order to store and display valuable works of art in museums and art galleries, a box type having a housing space inside a case body and an upper opening door at the top of the case body. It is also known to use a gas spring to facilitate opening and closing of the door body.

[0003] The above-mentioned door is designed to look into the inside of the exhibit from above, and a light-transmitting panel such as a glass plate is fitted into the door, and the door is made firmly to maintain its strength. Have been. Therefore, the door is heavy and requires a great deal of force to open it, but the gas spring offsets the weight of most of the doors and can be released relatively lightly.

[0004] However, it is also expected that the pivot portion of the gas spring will come off, or that the gas spring itself will not perform its predetermined function. This is very dangerous if the above-described unexpected situation occurs while the door is being opened and the work in the storage space is being taken in and out. for that reason,
There are also cases where a stay is set between the case body and the door body to forcibly prevent the door body from closing, but this not only hinders the work of taking in and out the exhibits, but also accidentally comes off the stay. It is dangerous because things are expected.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, the present invention has an object to solve the above problem by providing a housing space inside a case body and an upper opening door at an upper part of the case body. In the case of a box type, even when the gas spring is used to assist in opening the door, it is possible to easily and surely maintain the open state of the door, as well as completely obstruct the work of taking in and out the article. Another object of the present invention is to provide a door opening / closing device for a case with an upper opening door.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a box-shaped case having a housing space inside a case main body and having an upper opening door at an upper part of the case main body. The door body has a rear edge rotatable by a hinge, and a gas spring having a lower end pivotally mounted in a side plate portion of the case body is guided upward from a vertically long slit formed on an upper surface of the side plate portion. A stopper is provided in the vicinity of the longitudinal slit so as to pivotally move an upper end of the gas spring to an intermediate portion of the door, and to restrict the gas spring from moving forward in the longitudinal slit when the door is opened upward. A door opening / closing device for a case with a hinged door was constructed.

Here, it is preferable that the stopper means is a rotatable hook provided on the upper surface of the side plate portion, and the hook locks the gas spring.

[0008] It is also preferable that the stopper means is a stopper member which is fitted into a front portion of the longitudinal slit to stop the gas spring. In this case, specifically, the stop member separates from the main body case and engages an embedded member or one end portion which fits into the front portion of the vertical slit so as to be slidable up and down with respect to the gas spring. A fitting member which fits into the front part from above, or a rotating member which is attached to the front of the longitudinal slit so as to be rotatable back and forth and is rotated backward to stop the gas spring.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. 1 to 4 show a first embodiment of a door opening / closing device for a case with an upward-opening door according to the present invention, wherein reference numeral 1 denotes a case main body, 2 denotes a door body, 3 denotes a hinge, 4 denotes a gas spring, 5 Denotes stopper means.

A case opening / closing device for a case with an upward opening door according to the present invention has a housing space 6 inside a case main body 1 and a box-shaped case having an upper opening door 2 at an upper portion of the case main body 1. The door body 2 has a rear edge rotatable by a hinge 3, and a gas spring 4 having a lower end pivotally mounted in a side plate portion 7 of the case body 1 is formed on an upper surface of the side plate portion 7. The upper end of the gas spring 4 is guided upward from the vertical slit 8, and the upper end thereof is pivotally connected to an intermediate portion of the door body 2. With the door body 2 opened upward, the gas spring 4 is restricted from moving forward in the vertical slit 8. The stopper means 5 is provided near the longitudinal slit 8.

More specifically, the case main body 1 has a base portion 9 at a lower portion, and a storage space 6 for articles such as works of art is formed inside the base portion 9 above the base portion 9. It is a box type with an open top provided with a lighting device 10, and side plate portions 7, 7 having hollow insides are provided on both sides of the accommodation space 6,
Further, the door 2 is provided with a light-transmissive panel 12 such as a glass plate on the surrounding frame 11, and through the light-transmissive panel 12, it is possible to look into a display article such as an artwork placed in the housing space 6. It has become.

The rear edge of the door body 2 is attached to the hinge 3 so as to be vertically rotatable, and the lower end of the gas spring 4 is attached to the lower part of the side plate part 7, for example, to the base frame 13 of the base part 9. The first hinge 14 is connected to be able to swing back and forth, and the upper end of the gas spring 4 is guided upward from the longitudinal slit 8 formed on the upper surface 15 of the side plate portion 7, and the upper end of the gas spring 4 is connected to the door 2. A second hinge 16 is connected to the lower surface of the intermediate portion sufficiently in front of the hinge 3 so as to be able to swing back and forth.

When the door 2 opens and closes, the gas spring 4 moves in the longitudinal slit 8 in the longitudinal direction while expanding and contracting. That is, when the door 2 is opened, the gas spring 4 moves backward in the vertical slit 8, and the gas spring 4 abuts on the rear end of the vertical slit 8, and the door 2 is fully opened. I do. On the other hand, when closing the door 2, the gas spring 4 moves forward in the longitudinal slit 8.

Therefore, the door opening / closing device according to the present invention uses the upper surface 8 of the side plate 7 as the stopper means 5 in order to maintain the door 2 in the predetermined open state when the door 2 is opened. The gas spring 4 is locked by a rotatable hook 17 provided in the above. More specifically, the hook 17 is provided on the upper surface 15 of the side plate portion 7 behind the longitudinal slit 8, with a pin 18 perpendicular to the upper surface 15.
The hook 17 is rotatable along the upper surface 15, and the hook 17 is provided with an engagement recess 19 which is opened to the side at the tip end side.
7 to rotate the gas spring 4 into the engagement recess 19 thereof.
And restricts the forward movement of the gas spring 4,
This keeps the door 2 open. In order to prevent the state in which the hook 17 is locked by the gas spring 4 from being easily removed, a projection is formed at the open end of the engaging recess 19 so that the gas spring 4 can be forcibly fitted. The hook 17 and the upper surface 1
It is preferable to use a means such as simultaneous insertion into the holes formed in 5.

As another embodiment of the stopper means 5, as shown in FIGS. 5 to 7, a stopper member 20 which fits in the front part of the longitudinal slit 8 and stops the gas spring 4. Can be used. Here, what is shown in FIG. 5 is that the abutment member 20 is composed of an embedded member 21 that is separated from the main body case 1 and fitted into the front part of the longitudinal slit 8. That is, the buried member 21 has such a shape that the whole is inserted into the longitudinal slit 8 in front of the gas spring 4 after the door 2 is brought into a predetermined open state.

FIG. 6 shows a fitting in which the stopper member 20 is engaged with one end of the gas spring 4 so as to be slidable up and down, and is fitted into the front portion of the longitudinal slit 8 from above. It is made of a composite member 22. That is, the fitting member 22 is formed at one end with a circular hole 23 through which the gas spring 4 is slidably inserted, and at the front and rear ends of the lower surface at the front and rear ends of the longitudinal slit 8 with protrusions 24. , 24 are formed.

FIG. 7 shows a rotation mechanism in which one end of the abutment member 20 is attached to the front of the longitudinal slit 8 so as to be able to rotate back and forth, and is rotated rearward to abut the gas spring 4. It consists of a moving member 25. That is, the rotating member 25 has one end hinged to the upper surface 15 in front of the longitudinal slit 8 with a hinge 26 having a horizontal rotation axis,
The rotation member 25 is turned 180 ° rearward, and the front side of the gas spring 4 is stopped by the concave portion 27 at the tip thereof.

As described above, the door opening and closing device according to the present invention moves the gas spring 4 for supporting the opening and closing of the door 2 in the longitudinal slit 8 when the door 2 is in a predetermined open state. The purpose is to forcibly restrict such a structure, and other structures can be adopted as long as the structure conforms to the purpose. Further, in the above-described embodiment, the gas spring 4 is used for opening / closing support of the door 2, but any other rod-shaped opening / closing support similar to the gas spring 4 can be adopted.

[0019]

According to the first aspect of the present invention, there is provided a door opening / closing device for a case with an upwardly opening door according to the first aspect of the present invention, which has a housing space inside the case body and an upwardly opening door body at an upper portion of the case body. The door body has a rear edge rotatable with a hinge, and a gas spring having a lower end pivotally mounted in a side plate portion of the case main body is formed on a top surface of the side plate portion. A stopper means for guiding the gas spring upward from the slit, regulating the upper end of the gas spring to the middle of the door body, and restricting the gas spring from moving forward in the state where the door body is opened upward. Because it was provided near
Even when the gas spring is used to support the opening of the door, not only can the door be kept open, but it does not hinder the work of taking in and out the article.

According to the second aspect, the stopper means is a rotatable hook provided on the upper surface of the side plate portion, and the gas spring is locked by the hook, so that the door body can be easily and reliably fixed. The open state can be maintained, and naturally, it does not hinder the work of taking in and out of the article at all.

According to the third and fourth aspects, since the stopper means is a stopper member which is fitted into the front portion of the longitudinal slit to stop the gas spring, the same effect as described above is achieved.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a door opening / closing device for a case with an upward opening door according to the present invention.

FIG. 2 is a simplified vertical sectional side view.

FIG. 3 is a perspective view of a main part showing the first embodiment of the present invention.

FIG. 4 is a partially enlarged perspective view of the same.

FIG. 5 is a perspective view of a main part showing a second embodiment of the present invention.

FIG. 6 is a perspective view of a main part showing a modification of the second embodiment.

FIG. 7 is a main part perspective view showing another modification of the second embodiment.

DESCRIPTION OF SYMBOLS 1 Case main body 2 Door body 3 Hinge 4 Gas spring 5 Stopper means 6 Storage space 7 Side plate 8 Vertical slit 9 Base 10 Lighting device 11 Frame 12 Translucent panel 13 Base frame 14 First hinge 15 Top surface 16 Second hinge 17 Hook 18 Pin 19 Engagement recess 20 Stop member 21 Buried member 22 Fitting member 23 Circular hole 24 Projection piece 25 Rotating member 26 Hinge 27 Recess

Claims (4)

[Claims] 1. A box-shaped case having an accommodation space inside a case main body and an upper opening door body at an upper portion of the case main body, wherein the door body is rotatable at a rear edge by a hinge. None, a gas spring having a lower end pivotally mounted in a side plate portion of the case body is guided upward from a vertically long slit formed in an upper surface of the side plate portion, and an upper end thereof is pivotally connected to an intermediate portion of the door body, and A door opening / closing device for a case with an upward opening door, wherein stopper means for restricting the gas spring from moving forward of the longitudinal slit are provided in the vicinity of the longitudinal slit when the gas spring is opened upward. 2. The door opening and closing of a case with an upward opening door according to claim 1, wherein the stopper means is a rotatable hook provided on an upper surface of the side plate portion, and the hook locks the gas spring. apparatus. 3. The door opening / closing device for a case with a top opening door according to claim 1, wherein the stopper means is a stopper member which is fitted into a front portion of the vertically long slit to stop the gas spring. 4. The front end of the longitudinal slit, wherein the stopper member is engaged with a buried member or one end portion which is separated from the main body case and fitted into the front part of the longitudinal slit so as to be vertically slidable with respect to the gas spring. 4. An upper opening door according to claim 3, wherein one end of the vertically elongated slit is rotatably attached to the front end of the elongated slit so that the gas spring is stopped. Case door opening and closing device.