KR100566716B1 - Showcase with 4 sides glass for cultural assets - Google Patents

Abstract

The lower support part of the frame structure, the upper lighting part in which the lighting device is built-in, and the front glass door installed to be opened and closed between the lower support part and the upper lighting part, and the left, right and rear sides are installed with transparent glass panels to be displayed inside. In the cultural property showcase consisting of an intermediate display unit for viewing the cultural property, LM guide rail is fixed to be installed horizontally parallel to the front and rear on the left and right sides of the lower support; Two LM bearings slidably installed on each of the LM guide rails on both sides thereof; The LM guide rails on both sides and each of the two LM bearings installed thereon are sized to cover all of the LM guide rails. The LM guide rails are installed on the upper surface of each of the LM bearings horizontally from the inner upper portion of the lower support part. A moving plate installed to be movable; A ball screw rotating shaft having both ends rotatably installed in the front and rear bearing housings fixed between the two LM guide rails as an inner middle portion of the lower support portion; A ball screw nut body installed on the ball screw rotating shaft, the ball screw nut being installed to move forward and backward as the ball screw rotating shaft rotates left and right; An operation plate connecting the bullscrew nut body and the moving plate to move the moving plate together with the ball screw nut body moving forward and rearward when the ball screw rotation shaft rotates; Two door supports fixedly attached to the front left and right sides of the moving plate, and having a sliding bearing having a “C” -shaped cross-section inside the front of the moving plate and being opened forward; A lower sliding round bar installed to be slidable left and right while being inserted in a state where the sliding bearings mounted to the door supports penetrate left and right; It is fixedly attached to the inner surface of the lower front frame while having a long length substantially equal to the left and right lengths of the lower front frame supporting the lower portion of the front glass door, and a protrusion formed to protrude to the rear side is provided on the front of each door support. A coupling member inserted through the formed opening and fastened with a bolt in a state contacting the lower sliding round bar; Sliding supporters fixed to the front left, right and middle portions of the upper lighting unit; A pair of sliding bars installed on the sliding supports, each of which has a pair of sliding bars installed in a forward and backward direction so as to be able to slide forward and backward; The front glass door is slidably inserted into the upper guide groove formed in the left and right directions on the upper front frame supporting the upper portion of the front glass door while being fastened to each of their front ends, as if connecting all the sliding bars of each pair. , The upper sliding round bar for guiding the opening and closing operation to the left and right at the same time to guide the movement to the rear; characterized in that it comprises a.

Cultural assets, showcases, glass doors, locks

Description

Showcase with 4 sides glass for cultural assets}

1 is a front view for explaining the present invention.

Figure 2 is a side cross-sectional view showing the internal structure of the present invention.

3 to 5 is an enlarged view of a portion of the lower support frame for showing the operating state of the windshield door of the present invention,

    3 is a state in which the front glass door is closed,

    4 is a state in which the lock is removed to open the windshield door,

    5 is a state in which the front glass door is moved to the front using the manual handle.

6 is a cross-sectional view taken along the line A-A of FIG.

7 is a cross-sectional view taken along the line B-B in FIG.

8 and 9 are views showing the operating state of the windshield door shown in section line C-C of FIG.

10 is an enlarged cross-sectional view of the upper lighting frame of the present invention.

FIG. 11 is a sectional view taken along the line D-D in FIG. 10; FIG.

12 and 13 is an operating state diagram showing an open and locked state of the electrically operated locking device of the present invention.

Figure 14 is an operating state of the upper lighting frame lighting inspection door of the present invention.

※ Explanation of code for main part of drawing

1: Showcase 1a: Lower support

1b: Middle display part 1c: Upper lighting part

11: lower door 14: front glass door

15: Gasket 2: LM guide rail

21: LM bearing 24: ball screw rotating shaft

25 ball screw nut body 26 operating plate

27: moving plate 29: lock bunch

3: door support 31: opening

32: support bearing 33: lower sliding round bar

34: coupling member 35: protrusion

4a: Lower front frame 4c: Upper front frame

41: lower guide groove 42: movable stopper

43: buffer spring 44: fixed stopper

45: upper guide groove 5: the middle frame

51,52: Front and rear lighting check doors 53,54: Gas bar

55,56: Illumination lamp 6a, 6b, 6c: Sliding bar

61: sliding support 62: upper sliding round bar

7a, 7b: Electromagnet lock 7c: Electric lock

71,72: magnetic plate 73: locked ball

74: connecting plate 75: operating rod

The present invention mainly relates to a four-sided independent display case for displaying cultural property for displaying cultural assets such as clothing, ornaments, folding screens and paintings.

In the above, the four-sided independent display case means that the front, rear, left, and right sides of the exhibition part where the cultural property is displayed and displayed are made of transparent glass so that the interior is clearly visible to view the displayed cultural property.

Since various relics and cultural assets are a national heritage, they are stored in museums and cultural storages with facilities that can safely preserve them.

In the case of the museum, cultural properties are displayed on the showcase where the inside is transparent so that the public can easily see the preserved cultural properties.

In addition, the cultural assets that are displayed on the showcase should be preserved in an environment where there is no fluctuation in temperature and humidity, so the showcase is manufactured in a sealed structure without the flow of external air, especially the front, back, left, The transparent glass panels installed on the right side should be manufactured in a structure that can block the flow of outside air, and also the front, back, left, and right 4 sides to periodically check or replace the preservation status of the cultural assets displayed on the showcase. Of the glass panels of the front panel is installed in the door structure that can be opened and closed.

In the case of exhibition hall for cultural property exhibition with 4 sided independent display case, the front glass door is installed in the structure that can open and close the front glass door, and the front glass door itself is in contact with the sealing gasket installed at the ends of the left and right glass panels. Alternatively, when the structure is manufactured by sliding to the right, the sealing gasket is damaged, and thus the showcase loses the sealing force.

Therefore, the present invention has an object to provide a showcase of the structure that can open and close the front glass door without causing the above problems, and also the front glass door is open only by the opening operation of the person in charge of managing the cultural property. It is invented for another purpose to protect the cultural property more securely by preventing theft of the cultural property being displayed and displayed on the showcase.

The present invention as a means for achieving the above object,

The lower support part of the frame structure, the upper lighting part in which the lighting device is built-in, and the front glass door installed to be opened and closed between the lower support part and the upper lighting part, and the left, right and rear sides are installed with transparent glass panels to be displayed inside. In the cultural property showcase consisting of an intermediate exhibition,

An LM guide rail fixed to the left and right sides of the lower support part horizontally and horizontally in a forward direction;                         

Two LM bearings slidably installed on each of the LM guide rails on both sides thereof;

The LM guide rails on both sides and each of the two LM bearings installed thereon are sized to cover all of the LM guide rails. The LM guide rails are installed on the upper surface of each of the LM bearings horizontally from the inner upper portion of the lower support part. A moving plate installed to be movable;

A ball screw rotating shaft having both ends rotatably installed in the front and rear bearing housings fixed between the two LM guide rails as an inner middle portion of the lower support portion;

A ball screw nut body installed on the ball screw rotating shaft, the ball screw nut being installed to move forward and backward as the ball screw rotating shaft rotates left and right;

An operation plate connecting the bullscrew nut body and the moving plate to move the moving plate together with the ball screw nut body moving forward and rearward when the ball screw rotation shaft rotates;

Two door supports fixedly attached to the front left and right sides of the moving plate, and having a sliding bearing having a “C” -shaped cross-section inside the front of the moving plate and being opened forward;

A lower sliding round bar installed to be slidable left and right while being inserted in the state in which the sliding bearings mounted to the door supports penetrate left and right;                         

It is fixedly attached to the inner surface of the lower front frame while having a long length substantially equal to the left and right lengths of the lower front frame supporting the lower portion of the front glass door, and a protrusion formed to protrude to the rear side is provided on the front of each door support. A coupling member inserted through the formed opening and fastened with a bolt in a state contacting the lower sliding round bar;

Sliding supporters fixed to the front left, right and middle portions of the upper lighting unit;

A pair of sliding bars installed on the sliding supports, each of which has a pair of sliding bars installed in a forward and backward direction so as to be able to slide forward and backward;

The front glass door is slidably inserted into the upper guide groove formed in the left and right directions on the upper front frame supporting the upper portion of the front glass door while being fastened to each of their front ends, as if connecting all the sliding bars of each pair. , An upper sliding round bar for guiding the rearward movement and guiding the opening and closing operation to the left and the right;

Characterized in that configured to include.

And, the ball screw rotation shaft is formed so as to protrude the front end of the front bearing housing to be rotated by using a manual handle, the lock bunch for opening and closing the handle insertion hole formed in front of the ball screw rotation shaft is removable It is characterized in that it is installed

In addition, the rear end of each of the two pairs of sliding bars located on the left and both sides of the pair of sliding bars installed in the upper lighting unit is characterized in that the electromagnet lock device for controlling the opening and closing operation of the front glass door is installed,                         

In addition, the rear end of the pair of sliding bars located in the middle of the pair of sliding bars installed in the upper lighting unit is provided with an electrically operated locking device for controlling the opening operation of the front glass door when the power supply to the showcase is cut off. It is characterized by

In addition, the lower guide groove protruding from the bottom of the lower front frame supporting the lower portion of the windshield door is a movable spring and a buffering spring which is movably embedded in both of the movable stopper and the movable stopper. Both side separation prevention devices are provided to prevent the movable stopper from being separated, and each of the door supports formed at the left and right ends of the moving plate is controlled so that the front glass door is not opened excessively by controlling the movement of the movable stopper. It is characterized in that the fixing stopper is provided.

An embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a front view for explaining the present invention, Figure 2 is a side cross-sectional view for showing the internal structure of the present invention, Figures 3 to 5 is a lower support frame for showing the operating state of the windshield door of the present invention 6 is a cross-sectional view taken along line AA of FIG. 3, FIG. 7 is a cross-sectional view taken along line BB of FIG. 3, and FIGS. 8 and 9 are operation state diagrams of the windshield door shown by cross-sectional view taken along line CC of FIG. 10 is an enlarged cross-sectional view of the upper lighting frame of the present invention, Figure 11 is a sectional view taken along the line DD of Figure 10, Figures 12 and 13 is an operating state diagram showing an open and locked state of the electrically operated locking device of the present invention, 14 is a view showing an operating state of the lighting fixture door upper lighting frame of the present invention.

Reference numeral 1 denotes a showcase, and the showcase 1 is formed in a structure divided into a lower support portion 1a, an intermediate display portion 1b, and an upper illumination portion 1c.

First, the lower support part 1a is demonstrated.

The lower support part is made of a frame structure made of a square pipe to support the total weight of the showcase (1), and the left, right and rear sides of the frame structure are made of metal plates or wooden boards to finish the structure. It is.

In addition, the lower door 11 is attached to the front of the lower support portion 1a in a frame structure that can be opened and closed. In addition, the frame structure of the lower support portion 12 adjusts the height of the showcase 1 itself. ) And a caster 13 that facilitates transport and movement.

The frame structure of the lower support part 1a is provided with components for opening the front glass door 14 of the intermediate display part 1b.

Inside the lower support part, the LM guide rails 2 are fixedly installed at both front left and right sides thereof in parallel to the front and rear sides, and two LM guides are provided on the upper surfaces of the two LM guide rails 2, respectively. The sliding movement of the bearing 21 is provided freely.

Between the LM guide rails 2 on both sides, ball screw rotary shafts 24 are rotatably mounted at both ends of the front and rear bearing housings 22 and 23 positioned to face each other. It is.

The ball screw nut body 25 is assembled to the ball screw rotating shaft 24. The ball screw nut body 25 is installed to move forward and backward as the ball screw rotating shaft rotates left or right. In addition, the ball screw nut 25 is attached to the operation plate 26 having a cross-sectional structure of an inverted "a" shape as shown in the figure.

The upper surfaces of the two LM bearings 21 provided on each of the LM guide rails 2 on both sides and the upper surface of the operation plate 26 attached to the ball screw nut 25 are placed on the same plane.

A moving plate 27 having a plate shape is installed on the front upper part of the lower support part 1a so as to be movable forward, and the moving plate 27 has an upper surface of each of the LM bearings 21 and an operation plate 26. It is fastened with bolts in a state where it is mounted on the upper surface of). Therefore, when the operating plate 26 moves forward and backward along with the ball screw nut body 25 by the rotation operation of the ball screw rotating shaft 24, the moving plate 27 also moves together. Since the plate 27 is supported by both the left and right sides of the plate LM bearing 21 moving on the LM guide rails 2, the plate 27 can always be moved in a horizontal state.

Two door supports 3 are fixedly attached to the left and right ends of the moving plate 27 at appropriate intervals, and the centers of the door supports 3 are penetrated to the left and right sides. Moreover, the opening part 31 opened toward the front side is formed in the front surface.

In addition, each of the door support (3) is equipped with one support bearing 32 each having a cross section having a "C" shape, each of the support bearings so that the broken portion coincides with the opening (31). It is mounted.

In the center of the support bearing 32 mounted to each door support 3, a lower sliding round bar 33 having a length slightly smaller than the jaw and the right width of the showcase 1 is slidably fitted.

As described above, the coupling member 34 is fastened and assembled by a bolt to the lower sliding round rod 33 inserted through the center of each of the support bearings 32, and one side of the coupling member 34 is rearward in the drawing. Side) protruding portion 35 protrudes into the inside of the support bearings 32 through the opening 31 of each door support 3 to be fastened with bolts in contact with the outer circumference of the lower sliding round rod 33. The coupling member 34 is fastened and assembled to the rear surface of the lower front frame 4a supporting the lower portion of the front glass door 14.

Coupling member 34 in the above has the same length as the lower sliding rod 33 or has a slightly longer length.

In addition, a lower guide groove 41 is formed on an upper side of the lower front frame 4a, and a movable stopper 42 is internally movable in the lower guide groove 41, and the left and right sides of the movable stopper are movable. On both sides, a shock absorbing spring 43, which is coiled, is internally movable, and left and right ends of the lower guide groove 41 are attached in a fixed state.

In addition, a fixing stopper 45 having an inverted “T” shape is attached to each of the upper surfaces of both side door supports 3 attached to the left and right ends of the moving plate 27, respectively. Both sides of the fixed stopper 45 controls the movement of the movable stopper 42 so that the front glass door 14 does not leave the set opening width.

On the other hand, the front surface of the lower support (1a) is formed with a handle insertion hole 28 for exposing the ball screw rotation shaft 24, the handle insertion hole is opened and closed by the lock bunch 29. .

The lock bunch 29 may be removed from the handle insertion hole 28 when operated by the key K while the lock bunch 29 may be removed from the handle insertion hole 28 when the lock bundle 29 is operated in the locked state. It is configured to.

And the tip 241 of the ball screw rotation shaft 24 is protruded from the front bearing housing 22, the tip 241 is manually inserted into the handle insertion hole 28 after removing the lock (29) It has a structure that can be rotated by the handle (H). For example, when the binding protrusion is formed at the end of the manual handle (H), the front end 241 is formed with a binding groove into which the binding protrusion can be fitted, or the end of the manual handle is When the square to hexagonal coupling grooves are formed, the tip is formed in a size and shape that can be inserted and coupled to the coupling grooves.

Next, the middle display unit 1b, the middle display unit, including the front glass door 14, the left, right and rear sides are formed of a transparent glass panel, the front glass door has a structure capable of opening operation. On the other hand, the left, right and rear glass panels are fixed.

In addition, the lower front frame 4a supporting the lower portion of the front glass door 14 has both left and right ends of the lower fixing frame 4b supporting the lower portions of the left, right and rear glass panels in the state where the front glass door is closed. It is inserted in between, and when moved forward to open the windshield door is completely out between the left and right ends of the lower fixing frame (4b).

In addition, the upper front frame (4c) for supporting the upper portion of the front glass door 14 is also between the left and right ends of the upper fixing frame (4d) for supporting the upper portion of the left, right and rear glass panels when the front glass door is closed It is inserted into the state, and when the front glass door is moved forward, it is completely out of both ends of the upper fixing frame (4d).

The lower fixing frame (4b) in the above is assembled in a state attached to the frame structure of the lower support (1a), and the upper fixing frame (4d) is assembled in a state attached to the upper lighting unit (1c), the windshield When the door 14 is closed, a gasket 15 is mounted at a portion where the inner surface of the front glass door abuts, that is, the upper and lower ends of the left and right glass panels and the middle display portion 1b.

Next, the upper lighting unit 1c will be described.

The upper lighting unit is made of a metal plate of a relatively lightweight material so that the left, right and rear glass panels installed in a structure supported by the lower supporting frame 1a can have a load that can be supported, and the upper lighting unit 1c The front and rear lighting check doors 51 and 52 are hingedly coupled to the front and rear ends of the middle frame 5, which is located in the middle and is installed long toward the left and right sides. The doors are configured to be opened and closed by gas shovels 53 and 54.

That is, each of the gas shock bars 53 and 54 is connected to the front and rear lighting check doors 51 and 52 by one end of the cylinder body, and the front end of the piston rod is inside the upper lighting part 1c. It is connected by hinge structure at the front and rear.

When the operator closes the front and rear lighting check doors (51) and (52), the gas showbars can keep the door in the closed state, and when the door is opened, the piston rod appears to operate and the front and rear lighting checks. At the same time opening the door (51) (52) has a function to maintain the open state continuously.

In addition, a plurality of illumination lamps 55 and 56 are mounted on each of the front and rear illumination check doors 51 and 52, and the inside of the intermediate display unit 1b is sealed under the intermediate frame 5. It is installed in such a structure that the aluminum lamp and the frost glass (not shown) are installed so that the lights of the lights at the same time to illuminate the intermediate display, and also the above-described lighting (55, 56) on the upper lighting (1c) In addition, an optical fiber lighting lamp (not shown) that is illuminated by the optical fiber cable is installed.

Two sliding bars 6a, 6b and 6c for supporting the upper end of the front glass door 14 are installed at the front left and right sides and the middle of the upper lighting unit 1c in parallel to the front and the rear, respectively. It is.

In addition, the pair of sliding bar (6a) (6b) (6c) is supported by the sliding support (61) fixed to the upper lighting unit (1c) in a state capable of moving forward and backward, each pair The front ends of the sliding bars are attached to the upper sliding round bar 62 having a length substantially the same as that of the upper front frame 4c. Therefore, the pair of sliding bars are connected by the upper sliding round bar 62 to move together.

Electromagnet locking devices 7a and 7b are provided at the rear end of each of the sliding bars 6a and 6b located on the left and right sides of the pair of sliding bars 6a, 6b and 6c. At the rear end side of the sliding bar (6c) located in the center is provided with an electrically operated locking device (7c), the electromagnet locking device (7a) (b) and the electrically operated locking device (7c) is the upper light (1c) It is installed in a fixed state.

Magnetic plates 71 and 72 are attached to the rear ends of the left and right sliding bars 6a and 6b, respectively. The electromagnet locking devices 7a and 7b are described above when the power is being supplied. On the other hand, the magnetic plates are strongly attracted to the magnetic plates 71 and 72, while the magnetic force is lost when the power supply is cut off to release the magnetic plates 71 and 72.

At the rear end of the sliding bar 6c in the middle, a connecting plate member 74 having a locking hole 73 is attached. In the case of the electrically operated locking device 7c, the power is supplied when the power is supplied. While the rod 75 is immersed in operation, when the power is not supplied, the rod 75 is activated. When the power is cut off, the electric lock 7c is operated. The rod 75 is emergent operation is fitted to the locking hole 73 formed in the connecting plate member 74 to control the movement of the sliding bar (6c).

The upper sliding round bar 62 is slidably inserted into the upper guide groove 45 formed on the rear surface of the upper front frame 4c supporting the upper portion of the front glass door 14 to allow the front glass door 14 to be inserted. In addition to the forward and backward movement, it also serves as the controlling operation.

On the other hand, a switch box (not shown) is installed inside the lower support part 1a to selectively supply and cut off power to the electromagnet locks 7a and 7b and the electrically operated locks 7c. In addition, the switch box is provided with a structure that can receive the power of the emergency battery in the event of power failure.

The operation of the present invention configured as described above will be described.

When the front glass door 14 of the showcase 1 is closed, the front glass door 14 seals the showcase in a state in which the gasket 15 is pressed, and thus the front glass door 14 is closed. The lock bunch 19 is locked to the handle insertion hole 28 formed on the front surface of the lower support part 1a, and the electromagnet locking devices 7a and 7b of the upper lighting part 1c operate to operate the magnetic plate ( In the state of adsorbing 71) (72) by the electromagnetic force, the front glass door 14 itself is locked and cannot be opened, thereby safely displaying the cultural property displayed on the intermediate display unit 1b.

As described above, when the front glass door 14 is to be opened to periodically check or replace the cultural property that is displayed and displayed on the display case 1, the key K which has been prepared by opening the lower door 11 is prepared. The lock assembly 29 is opened and pulled out of the handle insertion hole 28 (see FIG. 4), and the electromagnet locking device 7a or 7b installed in the upper lighting unit 1c in the switch box (not shown). By operating a switch to cut off the power supply of the) to the electromagnet locks to lose the electromagnetic force so that the magnetic plates 71, 72 are released from the electromagnet lock. However, while maintaining the state that the power is supplied to the electrically operated locking device (7c) to maintain the state that the operating rod 75 is missing from the locking hole (73).

Subsequently, the manual handle H is inserted into the handle insertion hole 28 from which the lock bunch 29 has been removed, and the end thereof is coupled to the tip 241 of the ball screw rotation shaft 24. When the manual handle (H) is rotated in the rotational direction that can move to the front side, the ball screw nut shaft 25 is moved forward because the ball screw rotating shaft 24 is rotated to the left or right.

When the ball screw nut moves forward, the operating plate 26 and the moving plate 27 also move together. As the moving plate 27 moves forward, the front glass door 14 also moves forward. In this case, the pair of sliding bars (6a) (6b) (6c) supporting the upper portion of the windshield door 14 from the electromagnet lock (7a) (7b) and the electro-locking lock (7c) Since the lock is released and can move freely, the front glass door 14 also moves forward as the moving plate 27 moves forward (see FIGS. 5 and 12).

When the windshield 14 is moved forward, the gasket 15 mounted on the front side of the intermediate display unit 1b is in a relaxed state with the windshield, and also the front of the windshield 14 When the movement operation is completed, the door supports 3 are completely out of the left and right ends of the lower fixing frame 4b, so that the left and right ends of the lower sliding rod 33 are movable in the left and right directions. Also, the left and right ends of the upper sliding round rod 62 inserted into the upper guide groove 45 of the upper front frame 4c supporting the upper portion of the windshield 14 are also mounted on the upper fixing frame 4d. It is completely out of the left and right ends.

After moving the front glass door 14 as described above, if the front glass door is pushed to the left or right by artificial force of the operator, the front glass door is opened in the pushing direction, wherein the lower sliding round bar 33 The front glass door 14 is slid by the support bearing 32 mounted on each door support 3 and the upper sliding annular rod 62 is slid in the upper guide groove 45 at the same time. The opening operation to the right is made smoothly.

Then, before the opening operation is performed in the state in which the front glass door 14 is moved forward, the movable stopper 42 is not controlled to move to the fixed stopper 45 (see FIG. 8). ) Can be opened in either the left or right direction, and when the front glass door 14 is completely opened by pushing the glass door 14 to the left side as in the virtual line portion of FIG. 1, the movable stopper 42 as shown in FIG. 9. Is moved to the left by the release prevention tool 44 on the right side of the drawing is caught on the fixed stopper 45 on the left side in the drawing, when the movable stopper 42 is caught on the fixed stopper 45 on the left side The buffer spring 43, which is interposed between the movable stopper and the release prevention tool 44 on the right side and is elastically compressed, mitigates the impact and suppresses the generation of the simultaneous impact noise.

After opening the front glass door 14 and completing the inspection or replacement of the cultural property as described above, if the front glass door is placed in the reverse order when the opening operation is performed, the front glass door is installed in the showcase gasket (15). ) And the magnetic plates 71 and 72 at the rear end of the sliding bars 6a and 6b located on the left and right sides supporting the upper portion of the front glass door 14 to maintain the closed state. It is brought into contact with the device (7a) (7b). After closing the windshield door 14 in this way, the lock block 29, which was previously removed for the opening operation, is inserted back into the handle insertion hole 28. When the lock operation is carried out with the key K, the lock bunch 29 is fixed to the handle insertion hole 28 and cannot be removed without using the key K, and the switch box is not shown. Power supply to the electromagnet locks (7a) (7b) If possible, the electromagnet locking devices 7a and 7b recover the electromagnetic force and strongly attract the magnetic plates 71 and 72 to the electromagnetic force.

Therefore, the front glass door 14 cannot be opened by the lock bunch 29 fixed to the handle insertion hole 28, and the electromagnet locking devices 7a and 7b are used to close the magnetic plates 71 and 72. As the adsorption is performed, the sliding bars 6a and 6b on both the left and right sides are supported while the upper front frame 4c is being pulled and the sealing force of the front glass door 14 is improved.

On the other hand, when an electrostatic accident in which the power supplied to the showcase 1 is cut off occurs, the electromagnet locks 7a and 7b lose the electromagnetic force, while the electrolock lock 7c is the operating rod 75. The operating rod is inserted into the locking hole 73 of the connecting plate member 74 located thereon, and the sliding bar 6c supports the front glass door 14 and controls the simultaneous opening operation. Done. Therefore, it is possible to safely protect cultural property from theft accidents that may occur during power outages.

According to the present invention as described above, when opening the front glass door that is installed to open and close the showcase to move the front glass door to the front and then to be opened in the left, right direction while being pressed by the front glass door to maintain a sealing force It has the effect of opening and closing the front glass door without damaging the gasket.The front glass door can be opened only by removing the lock that is mounted on the front of the ball screw rotation shaft, thus preventing theft of cultural property. In addition, the electromagnet lock is activated to support the upper part of the front glass door during normal power supply, while in the case of power failure, the electric lock is activated to support the front glass door. It is possible to maintain the constant sealing force of the showcase at all times. To.

Claims (5)

The lower support part of the frame structure, the upper lighting part in which the lighting device is built-in, and the front glass door installed to be opened and closed between the lower support part and the upper lighting part, and the left, right and rear sides are installed with transparent glass panels to be displayed inside. In the cultural property showcase consisting of an intermediate exhibition, An LM guide rail fixed to the left and right sides of the lower support part horizontally and horizontally in a forward direction; Two LM bearings slidably installed on each of the LM guide rails on both sides thereof; The LM guide rails on both sides and each of the two LM bearings installed thereon are sized to cover all of the LM guide rails. The LM guide rails are installed on the upper surface of each of the LM bearings horizontally from the inner upper portion of the lower support part. A moving plate installed to be movable; A ball screw rotating shaft having both ends rotatably installed in the front and rear bearing housings fixed between the two LM guide rails as an inner middle portion of the lower support portion; A ball screw nut body installed on the ball screw rotating shaft, the ball screw nut being installed to move forward and backward as the ball screw rotating shaft rotates left and right; An operation plate connecting the bullscrew nut body and the moving plate to move the moving plate together with the ball screw nut body moving forward and rearward when the ball screw rotation shaft rotates; Two door supports fixedly attached to the front left and right sides of the moving plate, and having a sliding bearing having a “C” -shaped cross-section inside the front of the moving plate and being opened forward; A lower sliding round bar installed to be slidable left and right while being inserted in the state in which the sliding bearings mounted to the door supports penetrate left and right; It is fixedly attached to the inner surface of the lower front frame while having a long length substantially equal to the left and right lengths of the lower front frame supporting the lower portion of the front glass door, and a protrusion formed to protrude to the rear side is provided on the front of each door support. A coupling member inserted through the formed opening and fastened with a bolt in a state contacting the lower sliding round bar; Sliding supporters fixed to the front left, right and middle portions of the upper lighting unit; A pair of sliding bars installed on the sliding supports, each of which has a pair of sliding bars installed in a forward and backward direction so as to be able to slide forward and backward; The front glass door is slidably inserted into the upper guide groove formed in the left and right directions on the upper front frame supporting the upper portion of the front glass door while being fastened to each of their front ends, as if connecting all the sliding bars of each pair. , An upper sliding round bar for guiding the rearward movement and guiding the opening and closing operation to the left and the right; Four-sided stand-alone display case for cultural properties, characterized in that configured to include. The method of claim 1, The ball screw rotation shaft is formed so as to protrude the front end of the front bearing housing to be rotated using a manual handle, the lock bundle for opening and closing the handle insertion hole formed in front of the ball screw rotation shaft is installed detachably Four-sided stand-alone showcase for cultural property display. The method of claim 1, The rear end of each of the two pairs of sliding bars located on the left and both sides of the pair of sliding bars installed in the upper lighting unit, an electromagnet lock device for controlling the opening and closing operation of the front glass door is installed, 4 sides independent for cultural property exhibition Showcase. The method of claim 1, The rear end of the pair of sliding bars located in the middle of the pair of sliding bars installed in the upper lighting unit is characterized in that the electrically operated locking device for controlling the opening operation of the front glass door when the power supply to the showcase is cut off 4-sided stand-alone showcase for exhibiting cultural assets. The method of claim 1, The lower guide groove protruding from the lower front frame supporting the lower portion of the windshield door has a movable stopper which is inherently slidable and a buffering spring which is inherently movable on both sides of the movable stopper and the movable Both sides of the stopper is provided to prevent the departure of the stopper, and each of the door supports formed on the left and right of the front end of the moving plate is fixed to prevent the front glass door from being opened excessively by controlling the movement of the movable stopper. 4-sided independent showcase for cultural property exhibits featuring a stopper.

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