JP3714067B2 - Door opening and closing device for case with upper opening door - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door opening / closing device for a case with an upper opening door, and more particularly to a door opening / closing device for a case with an upper opening door for receiving and displaying precious artworks in a museum or an art museum.
[0002]
[Prior art]
Traditionally, a box-type upper door with a storage space inside the case body and an upper door that opens up at the top of the case body to store and display precious artworks in museums and art galleries. There is a case, and it is also known to use a gas spring to facilitate opening and closing of the door body.
[0003]
The door body is designed to look into the internal exhibits from above, and a light-transmitting panel such as a glass plate is fitted into the door body, and is made sturdy to maintain its strength. . Therefore, although the door body is heavy and requires a great deal of force to open it, the gas spring can be used to offset the weight of most door bodies and be released relatively lightly.
[0004]
However, it is also anticipated that the gas spring pivot will be removed, or that the gas spring itself will not perform its predetermined function. This is very dangerous if the above-mentioned unexpected situation occurs while the door is open and during the work of putting in and out the exhibits in the accommodation space. For this reason, some stays are set up between the case body and the door body so that the door body is not closed forcibly. It is dangerous because it can be expected to come off.
[0005]
[Problems to be solved by the invention]
Therefore, in view of the above-mentioned situation, the present invention intends to solve the problem that a gas spring is provided in a box-shaped case having a housing space inside the case body and having an upper opening door at the top of the case body. Even when used as door opening support, the door can be opened and closed easily and reliably, as well as opening and closing the case with an upper door that does not interfere with the loading and unloading of articles. The point is to provide a device.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention is a box-shaped case having a housing space inside the case body and having an upper opening door at the top of the case body, the door body having a rear edge. A gas spring having a lower end pivotally attached to the side plate portion of the case main body is guided upward from a vertically long slit formed on the upper surface of the side plate portion, and the upper end thereof is connected to the middle portion of the door body. When the door is opened, the gas spring moves backward in the longitudinal slit, and when the door is closed, the gas spring moves forward in the longitudinal slit. In the state where the door body is opened upward, stopper means for restricting the movement of the gas spring forward of the longitudinal slit by locking or stopping the gas spring is provided in the vicinity of the longitudinal slit. Open up To constitute a door opening and closing device of the door with a case.
[0007]
Here, it is preferable that 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.
[0008]
Moreover, it is also preferable that the stopper means is a stopper member that fits into a front portion of the vertically long slit and stops the gas spring. Specifically, in this case, the stopper member is separated from the main body case, and an embedded member or one end portion which is fitted into the front portion of the vertically long slit is engaged with the gas spring so as to be vertically slidable. It is a fitting member that is fitted into the front part from above, or a turning member that attaches one end to the front of the vertically long slit so as to be able to turn back and forth and turn backward to stop the gas spring.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
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 and closing device for a case with an upper door according to the present invention, in which 1 is a case body, 2 is a door body, 3 is a hinge, 4 is a gas spring, Indicates stopper means respectively.
[0010]
A door opening and closing device for a case with an upper door according to the present invention is a box-type case having a housing space 6 inside a case body 1 and having an upper door 2 at the top of the case body 1. The door body 2 has a rear edge that can be rotated by a hinge 3, and a vertically long slit formed on the upper surface of the side plate portion 7 with a gas spring 4 pivoted at the lower end in the side plate portion 7 of the case body 1. Stopper means for guiding the gas spring 4 forward from the longitudinal slit 8 with the upper end pivoted to the middle part of the door body 2 and the door body 2 opened upward. 5 is provided in the vicinity of the vertically long slit 8.
[0011]
More specifically, the case main body 1 has a base portion 9 in the lower portion, a housing space 6 for articles such as art objects is formed in the upper portion thereof, and a lighting fixture 10 is disposed above the innermost portion of the housing space 6. The side wall portions 7 and 7 having hollow interiors are provided on both sides of the housing space 6, and the door body 2 is made of a light-transmitting material such as a glass plate by a surrounding frame 11. A display panel such as a work of art placed in the accommodation space 6 can be viewed through the translucent panel 12.
[0012]
The door body 2 has a rear edge attached to the hinge 3 so as to be rotatable up and down, and a lower end portion of the gas spring 4 is attached to a lower portion of the side plate portion 7, for example, a base frame 13 of the base portion 9. 14, the upper end of the gas spring 4 is led upward from the vertically long slit 8 formed in the upper surface 15 of the side plate 7, and the upper end thereof is connected to the hinge 3 of the door body 2. In addition, the second hinge 16 is connected to the lower surface of the front intermediate portion sufficiently to be able to swing back and forth.
[0013]
When the door 2 is opened and closed, the gas spring 4 moves in the longitudinal slit 8 in the front-rear direction while expanding and contracting. That is, when opening the door body 2, the gas spring 4 moves rearward in the longitudinal slit 8, the gas spring 4 stops against the rear end of the longitudinal slit 8, and the door body 2 is fully opened. To do. On the other hand, when the door 2 is closed, the gas spring 4 moves forward in the longitudinal slit 8.
[0014]
Therefore, the door opening and closing device according to the present invention is provided on the upper surface 8 of the side plate portion 7 as the stopper means 5 in order to maintain the open state when the door body 2 is in a predetermined open state. The gas spring 4 is locked by a rotatable hook 17. More specifically, the hook 17 is rotatable on the upper surface 15 of the side plate portion 7 behind the longitudinal slit 8 and along the upper surface 15 with a pin 18 perpendicular to the upper surface 15, and on the tip side of the hook 17. An engagement recess 19 opened to the side is provided, the hook 17 is rotated to receive the gas spring 4 in the engagement recess 19, the forward movement of the gas spring 4 is restricted, and the door body 2 is opened. It is maintained with. In order to prevent the state where the hook 17 is locked to the gas spring 4 from being easily disengaged, a protrusion capable of forcibly fitting the gas spring 4 is formed at the open end of the engagement recess 19, or the rotation of the hook 17 is further increased. It is preferable to use means such as simultaneously inserting a regulating pin for regulating the above into the hole formed in the hook 17 and the upper surface 15.
[0015]
Further, as another embodiment of the stopper means 5, as shown in FIGS. 5 to 7, a stopper member 20 that fits into the front portion of the longitudinal slit 8 and stops the gas spring 4 is used. it can. Here, what is shown in FIG. 5 is composed of an embedded member 21 in which the stopper member 20 is separated from the main body case 1 and is fitted into the front portion of the vertically long slit 8. That is, the embedded member 21 has a shape that fits entirely into the longitudinal slit 8 in front of the gas spring 4 after the door 2 is in a predetermined open state.
[0016]
Further, in the structure shown in FIG. 6, the stopper member 20 is engaged with one end portion of the gas spring 4 so as to be vertically slidable and is fitted into the front portion of the longitudinal slit 8 from above. It consists of That is, the fitting member 22 is formed with a circular hole 23 through which the gas spring 4 is slidably inserted at one end, and a projecting piece 24 fitted into the front and rear ends of the longitudinal slit 8 at the front and rear ends of the lower surface. , 24 is formed.
[0017]
Further, in the structure shown in FIG. 7, the stopper member 20 attaches one end of the longitudinal slit 8 to the front of the longitudinal slit 8 so as to be able to pivot back and forth, and pivots backward to stop the gas spring 4. It consists of That is, the rotating member 25 is hinged at one end with a hinge 26 having a horizontal rotation shaft on the upper surface 15 in front of the longitudinal slit 8, and the rotating member 25 is reversed 180 ° backward, The front side of the gas spring 4 is stopped by the concave portion 27 at the tip.
[0018]
As described above, the door opening and closing device according to the present invention forcibly moves the gas spring 4 that supports the opening and closing of the door body 2 in the longitudinal slit 8 when the door body 2 is in a predetermined open state. However, any other structure can be adopted as long as the structure conforms to this purpose. In the above-described embodiment, the gas spring 4 is used for opening / closing support of the door body 2. However, other types of opening / closing support equivalent to the gas spring 4 may be used.
[0019]
【The invention's effect】
The door opening / closing device for a case with an upper door according to claim 1 as described above has a housing space inside the case main body, and a box-shaped case having an upper opening door at the upper part of the case main body. The door body can be pivoted at the rear edge by a hinge, and a gas spring having a lower end pivotally attached to the side plate portion of the case body is guided upward from a vertically long slit formed on the upper surface of the side plate portion. The upper end of the door is pivotally attached to the middle part of the door body, and when the door body is opened, the gas spring moves backward in the longitudinal slit, and when the door body is closed, The gas spring is arranged so as to move forward in the longitudinal slit , and the gas spring is moved or locked to the front of the longitudinal slit in a state where the door body is opened upward. a stopper means for restricting Te Since it is provided in the vicinity of the vertically long slit, even when the gas spring is used as an opening support for the door body, not only can the door body be reliably opened, but also it does not interfere with the work of putting in and out the article. It is.
[0020]
According to the second aspect of the present invention, 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 opened easily and reliably. It can be maintained, and naturally it does not interfere with the work of putting in and out the article.
[0021]
According to Claims 3 and 4, since the stopper means is a stopping member that is fitted into the front portion of the vertically long slit and stops the gas spring, the same effect as described above can be obtained.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a door opening and closing device for a case with an upper door according to the present invention.
FIG. 2 is a simplified longitudinal sectional side view.
FIG. 3 is a main part perspective view 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 an essential part showing a modification of the second embodiment.
FIG. 7 is a perspective view of an essential part showing another modification of the second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Case main body 2 Door body 3 Hinge 4 Gas spring 5 Stopper means 6 Accommodating space 7 Side plate part 8 Vertically long slit 9 Base part 10 Lighting fixture 11 Frame 12 Translucent panel 13 Base frame 14 First hinge 15 Upper surface 16 Second hinge 17 Hook 18 Pin 19 Engagement recess 20 Stopping member 21 Buried member 22 Fitting member 23 Circular hole 24 Projection piece 25 Rotating member 26 Hinge 27 Recess

Claims (4)

A box-shaped case having a housing space inside the case body and having an upper opening door at the top of the case body, the door body being rotatable at the rear edge by a hinge, the case body When a gas spring having a lower end pivotally attached to the side plate portion is guided upward from a longitudinal slit formed on the upper surface of the side plate portion, the upper end is pivotally attached to an intermediate portion of the door body, and the door body is opened. The gas spring moves backward in the longitudinal slit, and when closing the door body, the gas spring is arranged so as to move forward in the longitudinal slit, and the door body is opened upward. With the upper opening door, a stopper means is provided in the vicinity of the longitudinal slit to restrict the movement of the gas spring to the front of the longitudinal slit by locking or stopping the gas spring. Case door opening and closing Location. The door opening and closing device for a case with an upper 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 gas spring is locked by the hook. The door opening and closing device for a case with an upper door according to claim 1, wherein the stopper means is a stopper member that is fitted into a front portion of the vertically long slit and stops the gas spring. The stopper member is separated from the main body case and is engaged with an embedded member or one end portion which is fitted into the front portion of the vertically long slit so as to be vertically slidable with respect to the gas spring, and is fitted into the front portion of the vertically long slit from above. 4. A door opening / closing device for a case with an upper opening door, wherein the fitting member or the longitudinal slit is a rotating member that is attached to one end of the longitudinal slit so as to be pivotable in the front-rear direction and pivots backward to stop the gas spring. .

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