JP3038600B2 - Sliding door device for display cases - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door device for displaying an exhibit in a museum or the like, and more particularly to a device capable of safely and easily moving and closing a large door plate made of a glass plate.

[0002]

2. Description of the Related Art As a sliding door device for a display case installed in a museum or the like, the applicant has previously submitted Japanese Patent Application No. 1-299511, and a practical example thereof will be outlined with reference to FIGS. .

[0003] In the opening provided in the front of the display case (01),
A fixed door plate (02) is attached, and guide rails (05) and (06) each including a lateral groove (03) extending left and right and a vertical groove (04) penetrating rearward are provided vertically.

A movable door plate (08) is hung on a guide rail (05) provided at an upper portion via a runner (07), and a guide of the movable door plate (08) is supported on a lower guide rail (06). A roller (not shown) is guided. Further, in front of the movable door plate (08), cover pieces (010) and (011) having key holes (09) are pivotally supported vertically.

When closing the display case (01), the runner (07) of the movable door plate (08) is stopped at the position of the vertical groove (04) of the upper guide rail (05) as shown in FIG. Pushing backward as described above makes the fixed door plate (02) and the movable door plate (08) substantially flush.

[0006] Thereafter, the upper and lower cover pieces (010) and (011) are turned inward as indicated by arrow B, so that the fixed door plate (02) and the movable door plate (08) are substantially in a plane as shown in FIG. It becomes one display door plate, and the key is inserted from the key hole (09) provided in the upper and lower cover pieces (010) (011) and locked, and the movable door plate (0
8) Locking is completed.

However, in such a very large display case (01), a stepladder or a stand is required to close the upper cover (010), and the upper locking is very troublesome.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to make it possible to securely lock a movable door plate without the need for a stepladder or a stand.

[0009]

A fixed door plate installed in an opening of a housing is guided by a guide rail from a substantially parallel state of the fixed door plate to a position substantially flush with the fixed door plate. In display cases, etc. with the part closed
An electric actuator for pivotally supporting the upper cover piece consisting of the front piece and the rearward piece at the hinge portion and rotating the cover piece around the hinge portion is provided, and the movable door plate and the fixed door plate are substantially the same as the above. A sliding door device in a display case or the like in which the cover piece is rotated by the driving force of the electric actuator to move the rearward piece in the direction of the movable door plate.

[0010]

After the movable door plate is moved along the guide rail and is flush with the fixed door plate, the upper cover plate is rotated by the driving force of the electric actuator.

Here, the controller of the electric actuator is suitably mounted at a convenient and accessible position.

When the rearward piece which is a part of the cover piece approaches the movable door plate by the rotation of the cover piece, and the drive actuator stops,
The movable door plate is restricted from moving left and right by the fixed door plate, and the forward movement is also restricted by the drive actuator.

[0013] Therefore, the upper cover piece is locked by the electric actuator, and secure locking without using a stepladder or a stand is achieved.

[0014]

1 to 5 show an embodiment of the present invention.
The display case (1) is a casing surrounded by both side plates (2) and (2), upper and lower plates (not shown), a back plate (not shown), and a front upper plate (3) and a lower plate (4). An opening is formed between the front upper plate (3) and the front lower plate (4).

The left side of the opening is a slightly thick fixed glass (5).
A guide rail (6) extends in front of the fixed glass (5) in parallel with the fixed glass (5).

The upper guide rail (6) is fixed glass (5).
And a vertical groove (8) penetrating the inside of the housing. The runner (10) above the moving glass (9) is suspended,
The runner (10) slides along the guide rail (6).

Below the front of the fixed glass (5), a guide rail also extends parallel to the fixed glass (5), and includes a horizontal groove (12) parallel to the fixed glass and a vertical groove (13) entering the inside of the housing. )
The glass roller (14) below the moving glass (9) can move along the guide rail (11).

At the lower front of the moving glass (9), a handle piece (15) for holding a hand when moving is attached.

(16) The runner (10) of the moving glass (9)
When moving into the flute into (13) and moving, the moving glass (9)
It is a receiving piece for receiving.

A platen (1) is provided above the upper guide rail (6).
8) is provided, and a rising piece (20) is provided on the upper surface of the base (18) via a base (19).

An electric actuator (23) consisting of a drive cylinder (21) and a drive piston (22) is pivotally supported by a pin (24) between the two rising pieces (20) (20). .

At the front of the platen (18), a cover (28), which is rotatable about a hinge (25) and is composed of a front piece (26) and a rear piece (27), is attached.

The cover piece (28) is connected to the tip of the drive piston of the electric actuator at the upper part thereof by a pin (29) so that it can rotate freely.

The tip of the rearward piece (27) is made of a relatively soft member.

A control box (30) for braking the electric actuator (23) is provided between the lower guide rail (11) and the front lower branch (4).

At the upper end of the front lower plate (4), a cover piece which can rotate about a hinge part (31) and comprises a front piece (32) and a rear piece (33).
(34) is installed.

Reference numeral (35) denotes a key hole attached to the rearward piece (33), and a locking device (36) provided in the housing with the cover piece (34) being tilted as shown by a two-dot chain line. ) Is arranged so as to coincide with the locking portion.

Next, the operation of this embodiment will be described.

The figure shows a state in which the moving glass (9) is partially opened. To close the moving glass (9), the user grips the handle (15) and places the moving glass (9) in the lateral groove (7). ) Move horizontally along (12).

When the runner (10) and the guide roller (14) of the moving glass (9) are located at the entrances of the longitudinal grooves (8) and (13), the moving glass (9) is stopped, and the moving glass (9) is stopped. The moving glass (9) comes into contact with the receiving piece (16) by pushing
It is set at the position indicated by the dashed line.

Thereafter, when the switch (17) of the control box (30) is turned on and the electric actuator (23) is driven, the electric motor in the drive cylinder (21) operates, and the internal worm gear and the like (not shown) operate. The drive piston (22) moves forward.

As a result, the cover (28) rotates as indicated by a two-dot chain line, and the motor is stopped by a limit switch (not shown) in the electric actuator (23) to be locked.

Thereafter, as shown in FIG.
4) Fold it down to the position of the two-dot chain line, and put the control box (30)
And lock it through the keyhole.

To open the moving glass (9), the above procedure may be reversed.

In this embodiment, glass is used, but the present invention is not limited to glass, and the present invention can be applied to a door plate using an opaque material or the like. ,

[0036]

The present invention has the following effects.

(A) Since the upper cover is driven and locked by an electric actuator without using a manual operation, the upper cover can be controlled from below, and a stepladder or a stand is not required.

(B) If the moving glass runner is set at the entrance of the flute and the electric actuator is driven, the moving glass can be automatically closed without pushing the heavy moving door plate, and Can also be operated.

[Brief description of the drawings]

FIG. 1 is a perspective view of a display case according to an embodiment of the present invention;

FIG. 2 is a sectional view taken along the line II-II of FIG.

FIG. 3 is a sectional view taken along the line III-III of FIG. 2;

FIG. 4 is a sectional view taken along line XI-XI of FIG. 1;

FIG. 5 is a sectional view taken along line VV of FIG. 4;

FIG. 6 is a perspective view of a display case of the related art;

FIG. 7 is a perspective view of a conventional display case.

[Explanation of symbols]

(1) Display case (2) Side plate (3) Front upper plate (4) Front lower plate (5) Fixed glass (fixed door plate) (6) Guide rail (7) Side groove (8) Vertical groove (9) Moving glass ( (Moving door plate) (10) Runner (11) Guide rail (12) Horizontal groove (13) Vertical groove (14) Guide roller (15) Handle piece (16) Receiver (17) Switch (18) Surface plate (19) Base (20) Rising piece (21) Drive cylinder (22) Drive piston (23) Electric actuator (24) Pin (25) Hinge (26) Front piece (27) Back piece (28) Cover piece (29) Pin ( 30) Control box (31) Hinge (32) Front piece (33) Backward piece (34) Cover piece (35) Keyhole (36) Locking device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) E05C 21/00 A47F 3/12 E05D 15/10 E05F 15/10

Claims (1)

(57) [Claims] A fixed door plate installed in an opening of a housing is guided by a guide rail from a substantially parallel state of the fixed door plate to a position substantially flush with the fixed door plate to close the opening of the housing. In such a display case, an electric actuator for pivotally supporting the upper cover composed of the front piece and the rearward piece with a hinge portion and rotating the cover piece about the hinge portion is provided, and the moving door plate is provided. When the fixed door plate is substantially flush with the fixed door plate, the cover piece is rotated by the driving force of the electric actuator,
Sliding door device in a display case or the like in which the rearward-facing piece is moved in the direction of the moving door plate.