JP3453669B2 - Display case - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display case used for displaying various exhibits in a museum or the like.

[0002]

2. Description of the Related Art A typical example of a conventional device of this type is disclosed in Japanese Patent Publication No. 2-1484. In the display case described in this publication, an exhibition section composed of four transparent plates is provided on a base, a lid is provided on the exhibition section, and one surface of the transparent plate constituting the exhibition section is movable and transparent. The door is made of a plate, and the door is pushed forward and can be horizontally rotated. This protrusion, that is, the mechanism for moving back and forth, is such that the upper support and the lower support are slidably fitted back and forth to a guide cylinder that is fixed to the upper lid and the lower base and faces in the front-rear direction. At the front end of each support,
The top and bottom of the inner surface of one side of the door are horizontally pivotably attached.

[0003]

However, in the above-mentioned mechanism, since the door, which is usually a glass plate, has a heavy weight, when the door is moved forward, the weight of the door itself causes the door to move. A moment is generated to lower the edge, a force acts in the direction in which the lower part is pushed toward the case side, and a force in the direction in which the upper part is pulled away from the case, causing a difference in the movement of the upper and lower support members, which causes the door to move back and forth. There was a problem that it could not be done smoothly.

In order to deal with this problem, it is necessary to make the guide body, which is a guide mechanism for moving back and forth, and the upper and lower support bodies highly precise and sturdy so as not to be deformed by weight. The guide mechanism becomes expensive.

In order to solve such a problem, the present invention provides an exhibition case in which the door can be moved back and forth smoothly with an inexpensive mechanism without using an expensive guide mechanism. The purpose is to do.

[0006]

According to the present invention, the above problems can be solved as follows. (1) It is composed of a base, an exhibition section made of a transparent plate provided on the base, and a lid provided on the exhibition section. In a display case provided with a door that can be opened by moving the base, the base is pivotally attached to the base and the lid so as to be horizontally rotatable above and below the inner surface of one side of the door. Upper and lower front and rear movement mechanisms for pivoting the ends of the pair of pivot arms to move the door forward and backward and horizontally, and the upper and lower ends of a vertical rod horizontally rotatably provided in the exhibition section. By linking the part to the pivotal arm of the vertical movement mechanism of the upper and lower parts, the longitudinal movement of the upper and lower parts of the door is synchronized.

(2) In the above item (1), one end is pivotally attached to a pair of horizontal plates fixed to both upper and lower ends of the vertical rod, and the other end is pivotally connected to the vertical movement mechanism of the upper and lower parts. The upper and lower ends of the vertical rod are linked to the pivotal arms of the vertical movement mechanism of the upper and lower parts by the connecting rod pivotally attached to the supporting arm.

(3) In the above item (2), the horizontal plate, the connecting rod, and the back-and-forth moving mechanism are housed in the base and the lid.

(4) In any one of the above items (1) to (3), the vertical rod is made of a pipe material, and an electric wiring from a power source in the base to a lighting portion in the lid is provided in the hollow portion of the vertical rod. Insert it.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION FIG. 10 illustrates an exhibition case (A) to which the present invention is applied. This display case (A) covers a box-shaped base (1) made of a metal plate, an exhibition section (2) formed on the base (1), and an exhibition section (2). And a box-shaped lid (3) made of a metal plate.

A transparent plate (4) such as a tempered glass plate is fixed to both side surfaces and a rear surface of the display section (2), and a transparent plate (5a) such as a similar tempered glass plate is mainly formed on the front surface. One side edge of the door (5) is attached so as to be horizontally rotatable.

1 to 5 show a first embodiment of the present invention. FIG. 1 shows the display section (2) of the display case (A) shown in FIG.
The cross-section of the lower part of FIG. 1 is shown, and the back-and-forth movement mechanism (11a) of the door (5) is shown schematically.

The base of the pivot arm (7) of the front-rear moving mechanism (11a) is pivotally attached to the upper surface of the base (1) by a mounting shaft (6) so as to be horizontally rotatable, and is attached to the tip thereof. Door (5) with shaft (8)
Is pivoted near one end of.

In order to open the door (5), first of all, as shown by the arrow, the mounting shaft (8) is pulled out to the imaginary line position about the mounting shaft (6), and then the mounting shaft (8) is opened. ) As the center, and largely rotate horizontally as shown by the arrow.

Such a forward / backward moving mechanism is also provided in the lid body (3) at the upper part of the door, and the forward / backward moving mechanism at the upper and lower portions is
They are linked by the synchronization mechanism (11b).

The details will be described with reference to FIGS. The pivot arm (7) that pivotally supports the door (5) has a substantially fan shape in plan view, and the upper and lower ends of the mounting shaft (6) that vertically penetrates the essential part are the base (1). Is rotatably supported by a pair of upper and lower bearings (14) provided on a pivot mounting member (13) fixed to the upper surface of the shaft by bolts (12).

An outer end portion (7a) of the pivot arm (7) near the door is projected, and a mounting shaft (8) oriented in the up-down direction is penetrated here. The upper and lower ends of the mounting shaft (8) are fixed to the lower metal horizontal member (5b) of the door (5) with bolts (16).
It is rotatably supported by a pair of upper and lower bearings (17) provided in (15).

An arc-shaped elongated hole (9) is formed near the fan-shaped outer periphery of the pivot arm (7), and a cylindrical boss is formed in this elongated hole (9).
(18) is fitted. The boss (18) is supported by the mounting member (19), and the mounting member (19) is supported by the bolt (20).
It is attached to (1).

A pair of guide rollers (18a) projecting from the side of the cylindrical boss (18) sandwich the outer edge of the elongated hole (9) from above and below and guide it.

As is apparent from FIG. 4, the back-and-forth moving mechanism (11a) having the same structure is provided at the upper part of the door (5), that is, the lid (3).
It is also provided at the bottom of.

In FIG. 2, when the door (5) is pulled out forward, the pivotal arm (7) has a long hole (9) centered on the mounting shaft (6).
The end portion (9a) is rotated until it comes into contact with the cylindrical boss (18). At this time, the mounting shaft (8) to which the door (5) is mounted is pushed out to the front position as shown by an imaginary line. In this state, the door (5) can be rotated to open it as shown in FIG.

In order to return the door (5) to the closed position shown by the solid line in FIG. 2, the door (5) is returned parallel to the surface of the display case, and then the long hole ( It suffices to push it in until the boss (18) comes into contact with the other end (9b) of 9).

On the pivot arm (7), a connecting rod (22) of the synchronizing mechanism (11b) is provided by a pivot shaft (21) between the mounting shaft (6) and the elongated hole (9).
Is pivotally attached. As shown in FIGS. 1 and 5, the connecting rod
The (22) extends to the rear corner of the display case, and is pivotally attached to one end of the horizontal plate (24) here. The other end of the horizontal plate (24) is fixed to the upper and lower ends of the vertical rod (27).

This relationship will be described with reference to FIG. The other end of the connecting rod (22) is threaded, and one end of the L-shaped metal fitting (22a) is attached thereto by a set of nuts (22b). The other end of the L-shaped metal fitting (22a) has a horizontal plate (24).
It is pivotally supported by a pin (23) standing on one end of the. Horizontal plate
The lower end of a vertical rod (27) made of a pipe material extending vertically from the base (1) to the lid (3) is fixed to the other end of (24). At the upper end of the vertical rod (27), the same synchronization mechanism (11
The horizontal plate (24) of b) is fixed.

Therefore, when one pivot arm (7) (for example, the lower pivot arm) is rotated, the other pivot arm (7) (for example, the upper pivot arm) is moved through the interlocking mechanism (11b). The arm will also rotate in synchronization.

Electrical wiring (25) from the power source in the base (1) to the lighting equipment in the lid (3) is inserted into the hollow portion of the vertical rod made of pipe material.

In the second embodiment shown in FIGS. 6 and 7, the forward / backward moving mechanism includes a simple linear pivot arm (107). The central portion of this pivot arm (107) is attached by the mounting shaft (106).
It is pivotally mounted on the base (1) and the lid (2) so as to be horizontally rotatable. One end of the pivot arm (107) is attached to the door by the mounting shaft (108).
In (5), the other end is also connected by a pivot (121).
They are each pivotally connected to (22).

Since the door (5) can be rotated about the mounting shaft (108), when the door (5) is first put on the hand and pulled out forward, as shown in FIG. Rotates horizontally around the mounting shaft (106), and the mounting shaft (108) moves forward. In this state, the door (5) is rotated to the position shown by the imaginary line to open it.

At this time, the pin (2) at the other end of the connecting rod (22) is
In 3), the horizontal rod (24) is rotated, and the vertical rod (27) of the pipe material to which the horizontal rod (24) is fixed is rotated about its axis. This movement is transmitted to a similar synchronizing mechanism (11b) of the lid body (3) on the upper portion, and moves the upper portion of the door (5) back and forth in synchronization with the forward and backward movement of the lower portion.

In the modification shown in FIGS. 8 and 9, the pivot (12
The extension (121a) is formed by extending 1) downward. This extension (121a) is a base when the door (5) is moved forward.
The side wall portion (1a) of (1) can be brought into contact with the side wall portion (1a) to prevent further pulling out, that is, excessive movement. A similar extension (121a) is also provided on the upper mechanism.

[0031]

According to the invention described in claim 1, the front and rear movement amounts of the upper and lower portions of the door can be made equal, that is,
Without the use of an expensive guide mechanism, the weight of the door does not cause a difference in the movement of the upper and lower pivotal arms due to the moment in the forward tilt direction that occurs when the door is moved back and forth,
With an inexpensive mechanism, the door can be moved back and forth smoothly. Further, the vertical rod can be provided at a corner of the transparent plate between the lid and the base in an inconspicuous place, and the vertical rod hardly obstructs the view of the exhibits in the display case.

According to a second aspect of the invention, one end is
Pivotally attached to a pair of horizontal plates fixed to the upper and lower ends of the vertical rod,
Also, by connecting the other end of the vertical rod to the vertical movement mechanism of the upper and lower parts by a connecting rod pivotally attached to the pivotal arm of the vertical movement mechanism of the upper and lower parts, The horizontal rotation of the arm is converted into the horizontal rotation of the horizontal plate, and hence the horizontal rotation of the vertical rod, which allows the front-back movement of the door to be synchronized, and the door can be reliably moved back and forth with a simple and inexpensive mechanism. It can be moved.

When the horizontal plate, the connecting rod, and the front-rear moving mechanism are housed in the base and the lid as in the third aspect of the invention, the safety is improved and the appearance of the exhibition section is also improved.

According to the fourth aspect of the present invention, the vertical rod is made of a pipe material, and when the electric wiring from the power source in the base to the lighting section in the lid is inserted into the hollow portion, the electric wiring is hidden. The vertical rod can be arranged, and at this time, since the vertical rod only rotates at a small angle in the horizontal direction, it does not damage the electric wiring arranged inside.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view of a lower portion of an exhibition section of an exhibition case including a first embodiment of the present invention.

FIG. 2 is an enlarged view of a part of FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG.

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

FIG. 5 is an enlarged perspective view of a part of the interlocking mechanism.

FIG. 6 is a cross-sectional plan view similar to FIG. 1, showing the outline of a second embodiment of the present invention.

FIG. 7 is a vertical sectional view of the embodiment shown in FIG.

FIG. 8 is a partial cross-sectional view showing a modified example of the present invention.

9 is a partial vertical cross-sectional view of the modified example shown in FIG.

FIG. 10 is a perspective view of a display case.

[Explanation of symbols]

(A) Display case (1) Base (1a) Side wall (2) Exhibition section (3) Lid (4) Transparent plate (5) Door (5a) transparent plate (5b) Lower horizontal member (6) Mounting shaft (7) Pivot arm (7a) Outer end (8) Mounting shaft (9) Long hole (9a) (9b) End of long hole (11a) Forward / backward movement mechanism (11b) Synchronization mechanism (12) Bolt (13) Axis mounting member (14) Bearing (15) Mounting member (16) Bolt (17) Bearing (18) Cylindrical boss (18a) Guide roller (19) Mounting member (20) Bolt (21) Axis (22) Connection rod (22a) L-shaped bracket (22b) Nut (23) pin (24) Horizontal rod (25) Electric wiring (26) Axis (27) Vertical rod (106) Mounting shaft (107) Pivot arm (108) Mounting axis (121) Axis (121a) Extension

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A47F 1/00-3/14

Claims (4)

(57) [Claims] 1. A base, an exhibition section made of a transparent plate provided on the base, and a lid body provided on the exhibition section. The projection protrudes forward from one side of the exhibition section. In an exhibition case provided with a door that can be opened by being horizontally rotated, a base is pivotally attached to the base and the lid so as to be horizontally rotatable above and below an inner surface of one side of the door. Further, a vertical movement mechanism for vertically moving the door by moving the door forward and backward and horizontally is provided by pivotally attaching the ends of a pair of pivotal arms, and a vertical rod provided horizontally rotatably provided in the display section. By associating the upper and lower end portions with the pivot arm of the vertical movement mechanism of the upper and lower portions,
An exhibition case characterized in that the front and rear movements of the upper and lower parts of the door are synchronized. 2. A connecting rod in which one end is pivotally attached to a pair of horizontal plates fixed to both upper and lower ends of a vertical rod, and the other end is pivotally attached to a pivotal arm of a vertical movement mechanism of the upper and lower portions. The display case according to claim 1, wherein the upper and lower end portions of the vertical rod are linked to the pivotal arms of the front and rear movement mechanism of the upper and lower portions. 3. The display case according to claim 2, wherein the horizontal plate, the connecting rod, and the back-and-forth moving mechanism are housed in a base and a lid. 4. The vertical rod is made of a pipe material, and an electric wire from a power source in the base to an illuminating part in the lid is inserted into the hollow portion of the pipe. Display case described in.