JP6921409B2 - Display case door plate close contact device - Google Patents

Description

The present invention relates to a door plate contact device that adheres a door plate such as a glass plate to a packing in a large display case installed in an art museum, a museum, or the like.

Conventionally, in a large exhibition case installed in an art museum, a museum, or the like, an exhibition case formed so that a plurality of transparent glass plates provided in the front opening of the exhibition case body can be opened and closed as a door is known. (See, for example, Patent Document 1).

Since extremely valuable items are stored in such an exhibition case, the dustproof property (sealability) of the display case is important. Generally, a rubber packing is arranged between the glass plate and the main body of the display case, and it is an issue to improve the adhesion between the glass plate and the packing.

A plurality of actuators are used as a means for bringing the glass plate and the packing into close contact with each other. In this case, a method is used in which moving portions (pistons, etc.) of the actuator are fixed to a plurality of locations on the glass plate, and the glass plate is pulled toward the packing by the actuator to bring them into close contact with each other.

Japanese Unexamined Patent Publication No. 11-131935

The glass plates used in large display cases are large and can be warped in various directions and sizes. Therefore, the operator fine-tunes the pull-in by the actuator one by one for each actuator to ensure that the glass plate and the packing are in close contact with each other.

However, with such a conventional method, the work time becomes long, and it is difficult to improve the work efficiency.

Therefore, an object of the present invention is to provide a door plate contact device for an exhibition case capable of streamlining the work of bringing the door plate and the packing into close contact with each other.

(1) The door plate close contact device of the exhibition case of the present invention is mainly composed of a case main body and a transparent rigid body arranged at a position where the front opening of the case main body is flush-closed at a closing position. A door plate is provided, and one of the adjacent door plates is moved in either the front-back direction and then continuously moved in the width direction to overlap the door plate with the adjacent door plate and open the front surface of the case body. In the display case made possible, at least two having a packing interposed between the door plate and the case body and contacting the door plate and the case body, and a moving portion capable of reciprocating in the thickness direction of the door plate. It includes one actuator and a control unit that controls the amount of movement of the moving portion of the actuator for each actuator, and the control unit moves the moving portion of each actuator from a predetermined origin position to the door plate. Each of them is moved until they come into contact with each other, the difference between the minimum moving amount and the other moving amount of the moving amounts of the moving portions is calculated, and after the tips of the moving portions are connected to the door plate, the above-mentioned When calculating the difference, the moving portion (hereinafter, the moving portion having the minimum moving amount) that came into contact with the door plate with the minimum moving amount is moved until the door plate comes into contact with the packing, and at the time of calculating the difference. The other moving portion that has moved an extra distance more than the minimum moving amount and is in contact with the door plate is moved by the difference more than the moving amount of the moving portion of the moving portion toward the packing of the minimum moving amount. It is characterized by controlling the movement toward the packing.

According to the configuration of (1) above, the amount of movement of the moving portion of the actuator corresponding to each part of the door plate is controlled according to the warping direction and the amount of warping of each part of the door plate (the part where the actuator is arranged). As a result, each part of the door plate can be appropriately brought into close contact with the packing. As a result, it is possible to prevent the actuator from being prone to failure due to an unnecessarily large amount of movement of the moving portion of the actuator in order to realize the close contact, and the operator can use the actuator as in the conventional case. It is not necessary to fine-tune the movement amount of each actuator one by one. This makes it possible to remarkably improve the efficiency of the work of bringing the door plate and the packing into close contact with each other.

(2) In the door plate close contact device of the exhibition case of the above (1), the origin position is preferably the tip position of the packing on the door plate side.

According to the configuration of (2) above, the distance from the tip position (origin position) of the packing on the door plate side to the door plate portion (including the warped portion and the non-warped portion) can be known. It is possible to directly detect the distance to be moved. This makes it easier to control the moving portion of the actuator.

(3) It is preferable that the door plate contact device of the display case of the above (1) or (2) further includes a contact degree sensor that detects the degree of adhesion by measuring the pressure of the door plate against the packing.

According to the configuration of (3) above, the adhesion between the door plate and the packing can be detected by the adhesion sensor. As a result, the movement amount of the actuator can be readjusted, and the reliability of the adhesion can be improved.

According to the present invention, it is possible to provide a door plate contact device for an exhibition case capable of improving the efficiency of the work of bringing the door plate and the packing into close contact with each other.

It is a simplified front view which shows the display case which concerns on one Embodiment of this invention. It is a simplified vertical cross-sectional view of the display case of FIG. 1, and is the cross-sectional view taken along the line AA of FIG. FIG. 2 is an enlarged vertical cross-sectional view of the lower part of FIG. 2, showing a case where the display case is placed on a moving table. It is a simplified plan view around a glass plate. It is a schematic plan view for demonstrating the operation principle of the glass plate close contact device of this embodiment. It is another schematic plan view for demonstrating the operation principle of the glass plate close contact device of this embodiment. It is a simplified plan view around the glass plate which concerns on a modification. It is another schematic plan view for demonstrating the operation principle of the glass plate close contact device of this embodiment.

Hereinafter, the glass plate contact device (door plate contact device) of the exhibition case according to the embodiment of the present invention will be described with reference to the drawings. In the following, the front-rear direction refers to the front-rear direction of the display case 100, and the left-right direction refers to the width direction of the display case 100. Further, although the peripheral portion of the glass plate 2 will be mainly described, the description may be omitted because the peripheral portion of the glass plate 3 is almost the same as the peripheral portion of the glass plate 2.

In FIGS. 1 and 2, the exhibition case 100 is one of an exhibition case main body 1 having an opening 4 on the front surface, two glass plates 2 and 3 provided in the opening 4, and glass plates 2 and 3. A glass plate opening / closing device (not shown) that opens the opening 4 by moving the glass plate forward from the other glass plate and then moving it in the left-right direction from that position, and the glass plates 2 and 3 are brought into close contact with the packing described later. It is provided with a glass plate contact device 101 for making the glass plate adherent.

The outer shape of the exhibition case body 1 is a large box body, and the opening 4 can be closed in an airtight state by two glass plates 2 and 3, and the internal exhibition space is passed through these two glass plates 2 and 3. You can see the exhibits housed in 5.

Further, an upper decorative panel 11 and a lower decorative panel 12 (not shown in FIG. 2) are provided in the upper and lower portions of the opening 4 of the display case main body 1, and these decorative panels 11 and 12 are the display case main body. It can be opened and closed or can be attached and detached with respect to 1.

As shown in FIG. 2, the glass plate contact device 101 includes actuators 6 and 7. The two glass plates 2 and 3 are supported by an actuator 6 provided on the upper part of the display case main body 1 and supported by an actuator 7 provided on the lower part of the display case main body 1. As a result, the glass plates 2 and 3 are supported on the same surface. In the present embodiment, the actuators 6 are arranged on the left side and the right side of the upper part of the glass plates 2 and 3 (see FIG. 4), and the actuators 7 are arranged on the left side and the right side of the lower part of the glass plates 2 and 3. That is, the glass plates 2 and 3 are supported by four actuators, respectively. On both the left and right sides of the actuator 6, slide portions 20 that support the glass plates 2 and 3 together with the actuator 6 and have the function of an auxiliary guide member that moves in the same direction as the actuator 6 are provided. A similar slide portion 20 is provided for the actuator 7.

Next, the peripheral portion of the actuator will be described. As described above, in the present embodiment, four actuators are arranged for each of the glass plates 2 and 3, but the peripheral portions of the actuators are the same. Therefore, in FIG. 3 below, the glass plate 2 is shown. A peripheral portion of the actuator 7 arranged on one of the lower portions (left side or right side) will be described. Note that FIG. 3 is a diagram showing a case where the display case 100 is supported by a moving table 30 with wheels.

As shown in FIG. 3, a lower base frame 13 is provided at the lower part of the display case main body 1. A rubber packing 14 is interposed between the lower base frame 13 of the display case main body 1 and the glass plate 2.

The actuator 7 has a moving portion 15 that can reciprocate in the thickness direction of the glass plate 2. As the moving portion 15, a piston that goes in and out of the cylinder of the actuator 7 may be adopted. The amount of movement of the moving unit 15 of the actuator 7 is controlled by the control unit 16 included in the glass plate contact device 101. The control unit 16 controls the amount of movement of the moving unit 15 for each actuator. The control unit 16 is a device having a CPU (central processing unit), a memory, a storage unit for storing a program, and the like.

A connecting member 18 extending along the width direction of the glass plate 2 (the width direction of the display case 100) is fixed to the glass plate 2. Further, a hollow glass plate holding bar 17 is connected to the moving portion 15 of the actuator 7. The glass plate holding bar 17 extends along the width direction of the glass plate 2 like the connecting member 18.

At the initial stage (before setting the position of each actuator described later), the glass plate holding bars 17 are arranged apart from each other without being connected to the connecting member 18. On the other hand, as described below, when the glass plate 2 is pulled toward the actuator 7 according to the amount of warpage of the glass plate 2 (after setting each actuator described later), the glass plate holding bar 17 is used. It is connected and fixed to the connecting member 18. Note that FIG. 3 shows the glass plate holding bar 17 at the initial stage.

Subsequently, a method of bringing the glass plate 2 and the packing 14 into close contact with each other by the glass plate contact device 101 of the present embodiment will be described. Since the method of bringing the glass plate 3 and the packing 14 into close contact with each other is the same, the description thereof will be omitted. Hereinafter, the control of the actuators 6 provided on the left and right sides of the upper part of the glass plate 2 and the actuators 7 (not shown in FIG. 5) provided on the left and right sides of the lower part of the glass plate 2 will be described.

FIG. 5 is a schematic plan view for explaining the operating principle of the glass plate contact device 101. As shown in FIG. 5, it is assumed that the upper right end (lower end in FIG. 5) of the glass plate 2 is warped toward the actuator 6 (lower actuator 6 in FIG. 5). It is assumed that the upper left end, the lower left end, and the lower right end of the glass plate 2 are not warped.

First, the origin positions of the moving portions 15 of each actuator 6 and each actuator 7 are set. For example, the origin position can be the surface of the packing 14 on the glass plate 2 side. After setting the origin position in this way, the control unit 16 positions the tip of each moving unit 15 at the origin position and synchronizes them.

Next, the control unit 16 moves each moving unit 15 to a position where it comes into contact with the glass plate 2. Here, in the case of FIG. 5, the moving portion 15 on the lower side of the drawing comes into contact with the glass plate 2 at a shorter distance (minimum moving amount) than the moving portion 15 on the upper side of the drawing and the other two moving portions 15. On the other hand, the moving portion 15 on the upper side of the drawing and the other two moving portions 15 move more than the moving portion 15 on the lower side of the drawing by an extra distance (hereinafter, referred to as a difference) and come into contact with the glass plate 2. It will be. In this case, the control unit 16 stores the position where the moving unit 15 having the minimum moving amount comes into contact with the glass plate 2 as the reference point for the difference, and calculates the difference based on the stored position information. In addition, in order to facilitate understanding, in FIG. 5 schematically drawn, it has been described that each moving portion 15 is moved to a position where it comes into contact with the glass plate 2, but in the configuration of FIG. The moving portion 15 is moved to a position where the glass plate holding bar 17 to which the moving portion 15 is connected abuts on the connecting member 18. This point is the same in FIG.

Subsequently, the glass plate holding bar 17 is connected and fixed to the connecting member 18, so that the tip of the moving portion 15 is connected to the glass plate 2. After that, the control unit 16 moves the moving unit 15 having the minimum moving amount until the glass plate 2 comes into contact with the packing 14, and the other three moving parts 15 are moved to the packing 14 of the moving unit 15 having the minimum moving amount. Move toward packing 14 by the amount corresponding to each difference, which is larger than the amount of movement toward. By such control, even if any part of the glass plate 2 is warped, the glass plate 2 can be easily brought into close contact with the packing 14 as a whole.

Further, as shown in FIG. 6, even when the upper right end (lower end in FIG. 6) of the glass plate 2 is warped in the direction opposite to that of the actuator 6 (lower actuator 6 in FIG. 6). The control of each moving unit 15 of the control unit 16 is the same as described above. In this case, the control unit 16 touches the moving unit 15 having the minimum moving amount (that is, the other three moving parts 15 excluding the lower moving part 15 in FIG. 6) until the glass plate 2 contacts the packing 14. At the same time, the lower moving portion 15 of FIG. 6 is moved toward the packing 14 by a difference larger than the moving amount of the moving portion 15 having the minimum moving amount toward the packing 14.

As described above, according to the glass plate contact device 101 according to the present embodiment, the glass plates are according to the warp direction and the amount of warpage of each part of the glass plates 2 and 3 (the part where the actuators 6 and 7 are arranged). By controlling the amount of movement of the moving portion 15 of the actuators 6 and 7 corresponding to each of the parts 2 and 3, the difference can be easily set to 0, and each part (packing) of the glass plates 2 and 3 can be easily set to 0. The portion to be brought into close contact with 14) can be appropriately brought into close contact with the packing 14. As a result, it is possible to prevent the actuators 6 and 7 from being prone to failure due to an unnecessarily large amount of movement of the moving portion 15 of the actuators 6 and 7 in order to realize the close contact, and also to work. It is not necessary for a person to fine-tune the movement amount of the actuators 6 and 7 one by one for each actuator as in the conventional case. This makes it possible to remarkably improve the efficiency of the work of bringing the glass plates 2 and 3 into close contact with the packing 14.

Further, in the present embodiment, the origin position is set to the tip position of the packing 14 on the glass plate side. As a result, the distance from the tip position (origin position) of the packing 14 on the glass plate side to the parts of the glass plates 2 and 3 (including the warped portion and the non-warped portion) can be known, so that the actuators 6 and 7 can be moved. It is possible to directly detect the distance to which the unit 15 should be moved. This makes it easier to control the moving portion 15 of the actuators 6 and 7.

As described above, the above-described embodiment disclosed this time is an example in all respects and is not restrictive. The technical scope of the present invention is defined by the scope of claims and includes all modifications within the meaning and scope equivalent to the description of the scope of claims. For example, in the above embodiment, the case where the glass plate 2 is warped due to its own weight has been described as an example, but even when a deviation such as inclination occurs, the control unit 16 controls the glass plate 2 as in the above embodiment. The deviation can be corrected (the difference between the moving portions 15 of each actuator is set to 0), and the entire glass plate 2 can be brought into close contact with the packing 14.

Further, in addition to the configuration of the display case 100 of the above embodiment, the guide rail 130 may be provided as in the display case 200 shown in FIG. The guide rail 130 is a means for moving the glass plates 102 and 103 in the left-right direction. In FIG. 7, the parts having the same reference numerals as those in FIG. 4 and the last two digits are the same parts, and thus the description thereof will be omitted. Reference numeral 106 is an actuator similar to the actuator 6 described above.

Further, the glass plate adhesion device 101 may further include an adhesion sensor that detects the adhesion by measuring the pressure on the packing 14 of the glass plates 2 and 3. The adhesion sensor can detect the adhesion between the glass plates 2 and 3 and the packing 14. As a result, the movement amount of the actuators 6 and 7 can be readjusted, and the reliability of the degree of adhesion between the glass plates 2 and 3 and the packing 14 can be improved.

Further, in the above embodiment, the origin position of the moving portion 15 is set to the tip position of the packing 14 on the glass plate side, but the present invention is not limited to this, and the origin position is an arbitrary point. You can. In particular, the origin position of each moving portion 15 is such that each moving portion 15 can be pulled in to the display case main body 1 side or pushed out to the opposite side to the exhibition case main body 1 (each moving portion). There is so-called "play" in the movement of 15).

Further, in the above embodiment, the glass plates 2 and 3 are used as the door plate, but the present invention is not limited to this, and other door plates such as a transparent plastic door plate may be used.

Further, in the above embodiment, the glass plates 2 and 3 are supported by four actuators each, but the present invention is not limited to this, and the number is limited provided that a plurality of actuators are used. It's not something.

Further, as a method in which the difference between the moving portions 15 of the actuators 6 and 7 becomes 0 (the glass plate 2 is in close contact with the packing 14), in the above embodiment, the moving portions of the actuators 6 and 7 are controlled by the control of the control unit 16. Of the 15, the smallest moved one was moved so as to be in close contact with the packing 14, and then the moving portions 15 of the other actuators 6 and 7 were moved to be brought into close contact with the packing 14 in order to fill the difference. The method is not limited to this method, and the moving portion 15 of the actuators 6 and 7 may be moved in advance so that the difference becomes 0, and then the glass plate 2 may be brought into close contact with the packing 14. That is, any method may be used as long as the moving portion 15 of the actuators 6 and 7 is moved in advance so that the difference becomes 0. A modified example will be described.

As shown in FIG. 8A, when the glass plate 2 is tilted from an appropriate center position (see the dotted line in FIG. 8A), for example, the moving portion 15 of the actuator on the upper side of the paper surface is moved to the main body (paper surface). Pull it to the right) side and push the moving part 15 of the actuator on the lower side of the paper surface to the opposite side (left side of the paper surface) to the main body so that the glass plate 2 coincides with the appropriate center position as shown in FIG. 8 (b). Move to. After this movement, the moving portion 15 of each actuator is moved by the same amount of movement so that the glass plate 2 is brought into close contact with the packing. From the state shown in FIG. 8A, pull only the moving portion 15 of the actuator on the upper side of the paper surface toward the main body (right side of the paper surface) to bring it into the state shown in FIG. 8B, and then attach the glass plate 2 to the packing. You may let me. Alternatively, from the state shown in FIG. 8 (a), push only the moving portion 15 of the actuator on the lower side of the paper surface to the opposite side (left side of the paper surface) to the state shown in FIG. 8 (b), and then put the glass plate 2 on the packing. It may be brought into close contact. By these methods, as in the above embodiment, even when the glass plate 2 is warped by its own weight or the glass plate 2 is tilted, the moving portion 15 of each actuator 6 is appropriately moved. The position of the glass plate 2 can be adjusted to an appropriate position so that the glass plate 2 can be brought into close contact with the packing 14.

1 Exhibition case body (case body)
2, 3, 102, 103 Glass plate (door plate)
4 Opening 5 Exhibition space 6, 7, 106 Actuator 11 Upper decorative panel 12 Lower decorative panel 13 Lower base frame 14 Packing 15, 115 Moving part 16 Control unit 17, 117 Glass plate holding bar 18, 118 Connecting members 20, 120 slides Part 100, 200 Exhibition case 101, 201 Glass plate contact device (door plate contact device)
130 guide rail

Claims (3)

It is provided with a case body and a plurality of door plates mainly composed of transparent rigid bodies arranged at positions where the front opening of the case body is flushly closed at the closing position, and one of the adjacent door plates is front and rear. In an exhibition case in which the front surface of the case body can be opened by superimposing the door plate on an adjacent door plate by moving the door plate in either direction and then continuously moving the door plate in the width direction.
A packing that is interposed between the door plate and the case body and comes into contact with the door plate and the case body.
At least two actuators having a moving portion that can reciprocate in the thickness direction of the door plate, and
A control unit that controls the amount of movement of the moving unit of the actuator for each actuator is provided.
The control unit moves the moving portion of each actuator from a predetermined origin position until it comes into contact with the door plate, and among the moving amounts of the moving portions, the minimum moving amount and the other moving amount. After each difference is calculated and the tip of each moving portion is connected to the door plate, the moving portion (hereinafter, the said minimum moving amount) that comes into contact with the door plate with the minimum moving amount at the time of calculating the difference. The moving portion) is moved until the door plate comes into contact with the packing, and at the time of calculating the difference, the other moving portion that has moved an extra distance more than the minimum moving amount and is in contact with the door plate is moved to the minimum movement. A door plate contact device for an exhibition case, characterized in that control is performed so that the moving portion is moved toward the packing by an amount of the difference, which is larger than the amount of movement of the moving portion toward the packing. The door plate close contact device for an exhibition case according to claim 1, wherein the origin position is the tip position of the packing on the door plate side. The door plate adhesion device for an exhibition case according to claim 1 or 2, further comprising an adhesion sensor that detects the degree of adhesion by measuring the pressure of the door plate on the packing.

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