JP2002262970A - Door device for display case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door device for a display case which can be correctly and easily positioned at a closing position when the door is to be closed. SOLUTION: This door 2 can be pulled out to this side at the closing position and moved in the right and left directions. In a closing condition the door 2 is backed up at the closing position, an engaging projection 34 is fit into an engaging groove 36 of a regulating guide body 35 to hold the door 2 immovably in the right and left directions. In a condition the door 2 is opened, the door 2 is held not to be backed up because the engaging projection 34 abuts on the front face of the regulating guide body 35. Because the door is energized in the backing up direction by a spring, when the opened door 2 is slid to the closing position, the engaging projection 34 automatically fits into the engaging groove 36 to bring the door 2 into the closed condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device of a display case (exhibition device) mainly used for displaying and displaying artifacts such as works of art, museums and archeological items.

[0002]

2. Description of the Related Art A display case of this kind includes a case body having an open front as a display space inside, and a door closing an opening surface of the case body, and the door impairs the visibility of the display object. In general, it is made of a glass plate having excellent transparency and strength in order to exert a protective function.

[0003] Doors can be opened and closed in order to be able to put in and take out exhibits from the case body and to maintain equipment such as lighting devices and humidity adjusters.

In this case, the door is attached to the case main body so as to be movable back and forth along the depth direction of the case main body and to be slidable right and left along the frontage direction of the case main body. When this is done, the case body is sealed, and when pulled out to the near side, the case body can be slid left and right to empty the case body (Japanese Patent Laid-Open No. 10-2627).
No. 83, JP-A-11-131895, etc.).

When closing an open door, the door is slid to the closed position and then retracted. However, interference between the door and the case body is prevented, or interference between adjacent doors is prevented. Therefore, it is necessary to accurately position the door at the closing position.

Conventionally, as means for positioning the door at the closed position, a person manually positions the door while checking the position of the door, or a motor as described in JP-A-11-131895. For example, a positioning control means driven by such power is provided.

[0007]

Among the positioning means in the closed position, the method of positioning while confirming the position of the door has an advantage that the structure of the door device can be prevented from becoming complicated, but the operation is difficult. There was a drawback that it lacked efficiency and accuracy.

[0008] On the other hand, the positioning by the power-driven position restricting means is excellent in accuracy and efficiency, but significantly complicates the structure of the door device and requires space for providing the position restricting means. However, there is a problem in that the application target is limited because of the necessity.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and has as its object to provide a door device which has a simple structure and can efficiently and easily position a door at a closed position.

[0010]

The above objects can be attained by the present invention.

According to the first aspect of the invention, when the door closing the opening of the case main body is pulled out toward the front side from the closed state of the case main body when the front side is opened, the door closing the opening of the case main body is directed toward the frontage direction of the case main body. The door is mounted via guide means so as to be slidable along, and the door is held by the movement restricting means so as not to be slidable left and right in a closed state where it is retracted at the closed position, and is pulled out and slid to the front side In the display case which is held so as not to be able to retreat in the state, the door is automatically slid when the open door is slid to the closed position by urging the door in the retreat direction by urging means such as a spring or by its own weight. Is set to retreat.

According to a second aspect of the present invention, in the first aspect,
The door is supported by the guide means so as to move horizontally in the depth direction of the case body, and is urged in a retreating direction by a spring.

[0013] On the other hand, the movement restricting means includes an engaging projection protruding rearward at one or both of the upper and lower ends of the door at appropriate positions on the right and left sides, and a same height as the engaging projection of the case body. And a left-right longitudinal regulating guide body provided at the center position. The regulating guide body has a front-recessed concave engaging groove fitted into the engaging projection when the door comes to the closed position. .

According to a third aspect of the present invention, in the first aspect,
The door protrudes from the front surface of the case body, and is attached to the case body so that the door can be rotated in the front-rear direction around the upper portion thereof, and can be slid left and right when turned to the front side. Therefore, the door approaches the case body by its own weight, and is selfish.

On the other hand, the movement restricting means comprises an engaging member provided at the lower end of the door, and a right and left longitudinal regulating guide member provided at the same height position in the case body as the engaging member. When the door comes to the closed position, the regulating guide body is formed with an engagement groove having a concave shape facing forward when viewed in plan.

[0016]

According to the invention, the door is always urged in the retreating direction, so that when the opened door is slid to the closed position, the door is automatically stopped at the closed position, and Automatically retracts to hermetically closed condition. Therefore,
The door closing operation can be performed easily and accurately.

Also, since a power-driven position regulating means such as a motor is not required, the structure can be prevented from becoming complicated. In particular, when the door is urged in the retreating direction by its own weight as in claim 3, the structure becomes further simple because members such as spring means are not required.

Further, since the structure is simple, there is almost no space limitation, and therefore, there is an advantage that the present invention can be applied to various display cases.

[0019]

Next, embodiments of the present invention will be described with reference to the drawings.

(1) First Embodiment (FIGS. 1 to 10) FIGS. 1 to 10 show a first embodiment.

The display case of this embodiment is shown in FIG.
As shown in the schematic perspective view of FIG. 1, the mounting method is a method of mounting in a square hole W1 formed in a wall W of a building, with a case body 1 having a forward opening fitted into the square hole W1 and a state protruding forward from a wall surface. And one door 2 attached to the case body 1.

The door 2 can be moved back and forth along the depth direction of the case body 1 as shown by a black arrow in FIG. 1A, and when it is pulled out to the near side, as shown by a white arrow. The main body 1 can be slid left and right along the frontage direction.

In the present embodiment, the door 2 can be pulled out and slid right and left manually by using a vacuum suction type handle 3 shown in FIG. 1B.

The details of each part will be described below with reference to FIGS. 2A is a sectional view taken along line II-II of FIG. 1, FIG. 2B is a partial view taken along line BB of FIG. 1A, and FIG. FIG. 4 and FIG.
5, FIG. 5 is a bottom view as viewed in VV of FIG. 4, FIG. 6 is a perspective view of an intermediate portion between the right and left of the display case, FIG. 7 is a side sectional view with the door 2 pulled out, and FIG. Is a partial VIII- of FIG.
VIII view plan view, FIG. 9 is a partial IX-IX view plan view of FIG.
FIG. 10 is a plan cross-sectional view at the end of the case body 1 with the door 2 fully opened.

In this specification, the terms “front and rear” and “left and right” are used for simplicity of expression, but the depth direction of the case body 1 is referred to as “front and rear direction” (the front side is the front side). The direction along the frontage direction is called “left and right”.

[0026] Structure of Case Body 1 For example, as shown in FIGS. 2 to 4, the case body 1 includes a vertically long frame 4, a front and rear long side frame 5, a left and right long front frame 6 and a rear frame 7, These frames constitute a base frame (frame).

An enclosing plate 8 is fixed to a portion of the front portion of the base frame corresponding to the square hole W1 of the wall W.
At the position of the anchor W on the wall W via the spacer 9
It is fixed at.

As shown in FIGS. 2 and 4, a pair of left and right fixed blocks 11 are provided on the upper surface of the lower front frame 6 near the left and right ends and the lower surface of the upper front frame 6 near the left and right ends, respectively. It is fixed by bolts via 12. Note that three or more fixed blocks 11 may be provided.

A sliding shaft (support shaft) 13 extending in the front-rear direction is fitted in each fixed block 11 so as to be slidable in the front-rear direction. A support frame 14 extending substantially over the entire length is fixed. The fixed block 11 and the sliding shaft 13 constitute a forward and backward movement guide means for supporting the door 2 so as to be able to move forward and backward.

At the rear end of the sliding shaft 13, a flange 15 for regulating the forward position of the sliding shaft 13 is fixed by screwing or the like. As shown in FIGS. 4 and 5, as an example of the urging means described in the claims, two urging means are provided between the flange 15 of the sliding shaft 13 disposed on the upper part of the case body 1 and the rear frame 7. Each extension spring 16 is mounted.

For example, as shown in FIG. 2, on the front surface of the sliding shaft 13, a large number of support rollers 17 rotatable around an axis extending in the front-rear direction are provided at appropriate intervals on the left and right.

The inner surface of the case body 1 is composed of a bottom plate 19, a ceiling plate 20, a left and right inner plate 21, and a back plate 22 having a cosmetic property. Since the bottom plate 19 needs to have the strength to support the exhibit, it is supported by a receiving member 23 fixed to the side frame 5 as shown in FIG. Needless to say, the fixed block 11 is covered with the bottom plate 19 and the ceiling plate 20.

As shown in FIG. 2 and FIG.
A packing 24 made of a soft material such as rubber is fixed to a front end surface of the base plate 20 and the bottom plate 20. On the other hand, as shown in FIG. 4, a magnet 26 is fixed to the front surface of the stile member 25 fixed to the upper fixing block 11 (a packing 24 may be attached to the stile member 25 instead of the magnet 26). , And both may be provided side by side).

The ceiling plate 20 is fixed to the upper fixed block 11 with screws 27, so that the ceiling plate 20 can be easily removed for maintenance or the like. Note that a lighting device such as a fluorescent lamp system or a spotlight system may be provided inside the case body 1.

The enclosing plate 8 extends to a state protruding from the front surface of the wall W, and the front edge 8a of the enclosing plate 8 overlaps the end surface of the decorative wall plate 28.

[0036] Structure of the door 2 The door 2 is provided with a door body 29 formed in the shape of a rearward opening by five transparent glass plates, and the rear end edge of the door body 29 is made of a steel plate extending over the entire circumference. Reinforcement frame 30
Are fixed with an adhesive 31. When the rear surface of the reinforcing frame 30 hits the packing 24 and the magnet 26,
The retracted position of the door 2 is regulated.

The upper and lower reinforcing frames 30 are formed with overhangs 30a extending outside the door body 29, and support rails 32 are fixed to the back surface of the overhangs 30a via spacers 31 made of pipes. I have. On the support rail 32,
A dovetail groove 33 is formed in which the group of the support rollers 17 is rotatable and fits so as not to fall back and forth.

The group of support rollers 17 and the support rails 32 are an example of a left-right movement guide means for sliding the door 2 in the frontage direction of the case body 1, and pull out the door 2 to the front of the case body 1. , Can be freely slid in either direction.

[0039] Movement restricting means The overhanging portion 30a of the upper and lower reinforcement frames 30 in the door 2 includes:
Horizontal pieces 30 each extending toward the case body 1
b is bent.

As can be easily understood from FIGS. 6, 8 and 9, as a part of the movement restricting means, the upper surface of the horizontal portion 30b of the reinforcing frame 30 located at the lower portion is substantially in plan view. Engagement projection 34 projecting rearward in a rectangular shape
Are fixed by screwing, riveting, welding or the like.

Approximately half of the engagement projection 34 on the distal end side (free end side) is tapered at a very gentle taper angle in plan view, and approximately half on the proximal end side is in plan view. It is straight.

On the other hand, on the front surface of the front frame 6 of the case body 1, as a part of the regulating means, a regulating guide body 35 having an inverted L-shape in a side view, which overlaps the horizontal piece 30b of the reinforcing frame 30 from above, is welded. At the left and right intermediate portions of the restricting guide body 35, a recessed engaging groove 36 is formed in which the engaging protrusion 34 is fitted. The left and right inner side surfaces of the engaging groove 36 are tapered at a very gentle angle so that the inner part becomes narrower.

The opening edge of the engaging groove 36 is chamfered in an arc shape (this is for smoothly engaging and disengaging the engaging protrusion 34). The fitting depth between the engagement protrusion 34 and the engagement groove 36 is set to a size smaller than the front-rear movement stroke of the door 2 by a small amount.

As shown schematically in FIG. 2, the door 2 is provided at appropriate positions on the left and right inner surfaces of the front end of the enclosing plate 8 located at the lower part.
The lock 37 for locking is mounted. The lock 37
It has a key hole opened on the front surface of the decorative wall W, and a bar rod protruding upward by operation of the key, and the bar rod of the lock 37 is fitted into the horizontal piece 30b of the reinforcing frame 30 located at the lower part. A slot (not shown) for removal is formed. The lock 37 may be provided at the tip 8a of the upper enclosing plate 8.

The overlapping relationship between the horizontal piece 30b of the reinforcing frame 30 and the regulating guide body 35 may be upside down. Further, as shown by a dashed line in FIG. 7, it is also possible to provide an engaging projection 34 on the upper reinforcing frame 30. Further, it is also possible to provide a regulating guide body 35 on the door 2 and provide an engaging projection 34 on the case body 1.

[0046] Opening and Closing of the Door 2 When the case body 1 is sealed with the door 2, the engaging protrusion 34 is fitted in the engaging groove 36, and therefore, the door 2 is accurately positioned so as not to be able to move left and right. .

When the door 2 is pulled out to the front, the engaging projection 34 can be slid left and right with the engaging projection 34 in contact with the front end face of the regulating guide 35 as shown in FIG.

Since the door 2 is urged in the retreating direction by the tension spring 16, when the opened door 2 is slid to the closed position, the engagement projection 34 is fitted into the engagement groove 36, so that the door 2 is closed. Automatically retracts to a sealed state. In this case, since the tip of the engagement protrusion 34 and the engagement groove 36 are tapered, the engagement protrusion 34 is smoothly guided into the engagement groove 36.

The manner in which the door 2 is pulled in by the tension spring 16 may be set such that the door 2 is forcibly pulled into a closed state by always pulling the sliding shaft 13 strongly with the tension spring 16. When the sliding shaft 13 is retracted, the pulling force of the tension spring 16 is set so as to exert little or no force, so that when the door 2 comes to the closed position, the engaging projection 34 is engaged with the engaging groove 36. It may be set so that it fits partway.

In the former case, there is an advantage that the door 2 can be held in the retracted state by the tension spring 16. In the latter case, after the door 2 is automatically positioned, the door 2 is manually placed.
Is pressed to retract the door, but there is an advantage that the impact when the door 2 is retracted and hits the case body 1 can be eliminated.
In the latter case, the door 2 is held in a retracted state by the magnet 26.

Since the door 2 protrudes from the wall surface toward the front side, as shown by the black arrow in FIG. 6, the door 2 has a moment such that its lower part is pressed toward the case body 1 by its own weight. Working.

Therefore, even when the extension spring 16 is not provided, when the door 2 is opened, the engagement protrusion 34 of the door 2 strongly contacts the regulating guide body 35 of the case body 1.
For this reason, when the door 2 is moved to the closed position, the engagement protrusion 3
4 and the fitting groove 36 are automatically fitted. Therefore, in this embodiment, the tension spring 16 is not necessarily required.

In the present embodiment, the rear end of the engagement projection 34 is set to be located deeper than the front end of the surrounding plate 8 when the door 2 is pulled out to the front. Therefore, FIG.
As shown in FIG. 0, when the door 2 is slid left and right,
When the engagement protrusion 34 hits the front edge of the left and right surrounding plate 8, the left and right movement stroke of the door 2 is regulated.

Accordingly, since the engagement projection 34 which forms a part of the movement restricting means also functions as the stopper for restricting the opening and closing stroke of the door 2, there is an advantage that the structure of the door device becomes simpler.

(2) Second Embodiment (FIG. 11) As shown in FIG. 11 as a second embodiment, a compression spring 39 may be used as a spring means, and this may be fitted on the sliding shaft 13. A collar 40 for regulating the stroke is fitted in the sliding shaft 13.

(3) Third Embodiment (FIG. 12) The urging means is not limited to the use of a spring.
2, a weight 41 is used as shown in the third embodiment,
The sliding shaft 13 may be pulled in the backward direction via the wire 42. Reference numeral 43 denotes a guide pulley.

(4) Fourth Embodiment (FIG. 13) FIG. 13 shows a fourth embodiment, in which (A) is a longitudinal side view, and (B) is partially omitted from (B) of FIG. It is a plane sectional view.

In this embodiment, as in the first embodiment, the door 2 is formed in a square shape with a rearward opening, and the support rail 32 is formed integrally with the reinforcing frame 30 above the door 2. On the other hand, the support frame 14 is attached to the upper front frame 6 of the case main body 1 by a hinge 44 so as to rotate toward the front side with its upper end as a center (it may be pivotally connected with a pin). In this example, the hinge 44 is the door 2
Corresponds to the forward and backward movement guide means.

A drum-shaped roller 45 as an example of an engaging body is provided between the left and right intermediate portions of the lower reinforcing frame 30 of the door 2.
Is horizontally rotatable, and a plate-shaped regulating guide 35 on which a roller 45 can roll freely is fixed to the lower front frame 6 of the case body 1. An engagement groove 36 into which the roller 45 is fitted is formed.

In this embodiment, as shown by the black arrow in (A), a moment is applied to the door 2 by its own weight so as to press the roller 45 against the regulating guide body 35.

Accordingly, when the door 2 is rotated forward, the roller 45 can be freely slid left and right while the roller 45 is in contact with the front end of the regulating guide body 35. When the opened door 2 is moved to the closed position, the roller 45 automatically fits into the engagement groove 36, and the door 2 automatically moves backward to the closed position.

It is not always necessary to use the roller 45 as the engaging member, but a projection (slider) made of a material having a small friction coefficient and high wear resistance may be used. It is also possible to provide a regulating guide body 35 on the door 2 and provide an engaging body such as a roller 45 on the case body 1.

(5) Fifth Embodiment (FIG. 14) FIG. 14 shows a fifth embodiment which is a modification of the fourth embodiment.

In this embodiment, a roller 45 as an engaging body is provided at a left and right intermediate portion of the door 2, while a main engaging groove 36 is provided at an intermediate portion of the regulating guide body 35 in the case body 1.
Stopper engagement grooves 36a are formed at the left and right ends, respectively. In this embodiment, by fitting the roller 45 into the stopper engagement groove 36a, the door 2
Can be widely opened.

(6). Sixth Embodiment (FIGS. 15 and 16) FIGS. 15 and 16 show an example in which the present invention is applied to a display case of a type mounted on a counter-shaped display table 46 (table or table). The legs may be provided integrally with the case body 1). FIG. 15 is a schematic perspective view of the whole, and FIG. 16 is a schematic plan view of the movement restricting means.

In this embodiment, two doors 2 are arranged in the opening of the case body 2 so as to extend linearly in plan view, and each door 2 can be freely moved forward and backward, respectively. , Can be slid left and right while being pulled out to the near side.

An engaging projection 34 similar to that of the first embodiment is provided at adjacent ends of the left and right doors 2, and an engaging groove 36 is formed at a portion of the regulating guide 35 near the center.

In this embodiment, the opening position of the door 2 is regulated by contacting the engagement protrusion 34 with the side end of the case body 1, but the engagement protrusion 34 is biased toward a middle portion of the case body 1. Therefore, when the left and right doors 2 are moved in opposite directions, the case main body 1 can be largely opened.

(7). Others The present invention can be variously embodied in addition to the above embodiment.

For example, as the movement restricting means, a horizontal pin is protruded from one of the door and the case body, and the other side is provided with a horizontally long restricting guide body to which the tip of the pin contacts. Various forms can be adopted, such as making a hole in the regulation guide body in which the pin fits.

The guide means for supporting the door movably back and forth or slidably to the left and right may employ various mechanisms different from those of the embodiment. Further, it is also possible to move the door back and forth and left and right with the power of a motor or the like.

Furthermore, the present invention can be applied to various display cases, such as a display case of a type that is independently installed on the floor of a building and a display case that is integrally formed with the building. In addition, the size and position of the opening can be freely set as necessary.For example, in the case of a display case installed on the floor, it is possible to open the entire circumference of the case body and provide a door at each opening. good.

[Brief description of the drawings]

1A is a schematic perspective view of a display case according to a first embodiment, and FIG. 1B is a perspective view of a handle.

2A is a sectional view taken along line II-II of FIG. 1, and FIG. 2B is a partial view taken along line BB of FIG.

FIG. 3 is a partial perspective view of the case main body as viewed from the inside.

FIG. 4 is a sectional view taken along line IV-IV of FIG.

FIG. 5 is a bottom view as viewed in the direction VV of FIG. 4;

FIG. 6 is a perspective view of an intermediate portion between the right and left of the display case.

FIG. 7 is a side sectional view in a state where a door is pulled out.

FIG. 8 is a partial VIII-VIII plan view of FIG. 6;

FIG. 9 is a partial IX-IX plan view of FIG. 7;

FIG. 10 is a plan cross-sectional view at an end of a case main body in a state where a door is fully opened.

FIG. 11 is a diagram illustrating a second embodiment.

FIG. 12 is a diagram illustrating a third embodiment.

FIG. 13 is a diagram showing a fourth embodiment.

FIG. 14 is a diagram showing a fifth embodiment.

FIG. 15 is a perspective view of the sixth embodiment.

FIG. 16 is a schematic plan view of a movement restricting unit according to a sixth embodiment.

[Brief description of reference numerals]

 W wall 1 case body 2 door 6 front frame 11 fixed block forming a part of longitudinal movement guide means 13 sliding shaft forming a part of longitudinal movement guide means 14 support frame 16 tension spring 17 support roller 29 glass plate door body 30 Reinforcement frame 32 Support rail 34 Engagement protrusion 35 Regulation guide body 36 Engagement groove

Claims (3)

[Claims] When a door for closing an opening of the case body is pulled out from a closed state of the case body to a front side of the case body having an open front surface, the door is slidable along the frontage direction of the case body. The door is held by the movement restricting means so as not to be slidable left and right in a closed state where the door is retracted at the closed position, and is not moved backward when the door is pulled out and slid toward the front side. In the display case, the door is automatically retracted when the opened door is slid to the closed position by urging the door in the backward direction by an urging means such as a spring or by its own weight. The door device of the display case. 2. The door is supported by the guide means so as to move horizontally in the depth direction of the case body, and is urged in a retreating direction by a spring. An engagement projection protruding rearward at one or both of the right and left appropriate portions of the upper and lower ends, and a left and right longitudinal regulation guide body provided at the same height position as the engagement projection of the case body. 2. The display case door device according to claim 1, wherein the restricting guide body is formed with an engagement groove having a concave shape facing forward when viewed from the top, which is fitted to the engagement protrusion when the door comes to the closed position. 3. 3. The door protrudes from the front surface of the case main body. The door can be rotated in the front-rear direction around the upper part thereof, and can be slid left and right by rotating the door toward the front. The door is attached to the case main body by its own weight, so that the movement restricting means is provided with an engaging member provided at a lower end of the door, and the case main body. A left-right longitudinal regulating guide body provided at the same height as the engaging body, wherein the regulating guide body engages with the engaging body when the door comes to the closed position. The display case door device according to claim 1, wherein the groove is formed.