JP3538532B2 - A device for closing the gap with the door at the opening of the case body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case where the front of a case body such as a built-in display case installed in a museum or the like is opened and closed by a door made of glass or the like. The present invention relates to a configuration of a device for closing a gap therebetween.

[0002]

2. Description of the Related Art Conventionally, the front surface of a case body of an exhibition case installed in a museum or the like has been hermetically sealed with a plurality of transparent doors made of glass plates or the like so as to form a sealed shape. Japanese Patent Application Laid-Open No. Sho 61-1791 and Japanese Unexamined Patent Application Publication No. Hei 4-2 have disclosed a configuration in which the transparent doors are shifted in the thickness direction to open the front surface of the case body with an interval between the other transparent doors.
There is one disclosed in Japanese Patent No. 16778.

In the former publication, a plurality of glass plates are arranged flush with each other at a front opening of a case body, and a front side of the glass plate has a substantially L-shaped cross section for concealing upper and lower ends of the glass plates. The decorative frame is rotatably provided on the front plate of the case body via a hinge, and the free end of the decorative frame is in contact with the front surface of the glass plate, and the decorative frame is turned forward from the front plate. It is disclosed that the operator can manually operate the moving posture and the operator.

In the latter publication, a plurality of glass plates are arranged flush with each other in a front opening of a case body, and a front side cross section for concealing upper and lower ends of the glass plates is provided in front of these. The base end side of the L-shaped cover piece is rotatably mounted on the machine frame, the front plate, and the like via a hinge, and the upper cover piece is rotationally driven by an electric actuator including a cylinder that moves forward and backward, A configuration is disclosed in which a free end of an upper cover piece is pressed against a front surface of a glass plate to hold the glass plate in a locked state that prevents movement of the glass plate.

[0005]

However, in either of the above prior arts, the cover or the decorative frame has an L-shaped cross section, and when the free end does not come into contact with the glass plate (door) in the open state, Since the case body is rotated to the front of the front plate, the case body must be installed with a space for the rotation predicted in advance.

In addition, since the open decorative frame or the cover piece protrudes from the lower part of the case main body to a large space area forward of the front plate, the decorative frame or the cover is required when the worker enters the case main body. There was a problem that the existence of the frame or the cover piece was likely to be an obstacle. In the present invention, dust and foreign matter do not accidentally enter the gap, and the transparent door is prevented from inadvertently rattling back and forth, and the above-described conventional problem is solved. It is an object of the present invention to provide a device for closing a gap between the two.

In order to achieve the above object, according to the first aspect of the present invention, there is provided a device for closing a gap between an opening of a case main body and a door. After moving at least one set of doors of a plurality of sets of doors such as glass plates arranged in a shape in the thickness direction, the doors overlap with the wide surface of the other set of doors in the gap. It is configured to be movable in parallel, and on the back side of the front plate, the base end side of a closing plate for closing the gap is turned up and down so as to come into contact with and separate from the front surface of the flush door. Movably arranged, and the closing plate , the tip side of which is in front of the door
A driving means is provided for changing and driving the posture to be substantially horizontal so as to abut, and the posture in which the front end side is retracted to the back side of the front plate.

According to the second aspect of the present invention, the device for closing the gap between the opening of the case body and the door is flush with a horizontally long gap formed on the back side of the front plate of the case body. At least one of a plurality of sets of doors such as glass plates
After moving one set of doors in the thickness direction, the pair of doors is configured to be able to move in parallel so as to overlap the wide surface of the other set of doors in the gap, and the front plate is configured to close the gap. And a driving means for moving the closing plate back and forth in a substantially horizontal state so as to come into contact with and separate from the front surface of the door arranged flush.

[0009]

Next, embodiments of the present invention will be described. FIG. 1 is a perspective view of a door device in a display case of the present invention, and FIGS.
FIG. 3 is a schematic front view, FIG. 9 and FIG. 10 are side sectional views of a mechanism of a first embodiment of a device for closing a gap with a lower side of a door, FIG. 13 is a side sectional view of a second embodiment of the gap closing device, and FIG. 14 is a side sectional view of a third embodiment of the gap closing device.

Next, doors A1 and A2 of the first set of glass plates or the like are used.
And the second set of doors B1 and B2, such as glass plates, can be arranged flush with the front opening of the case body 1 of the display case (see FIG. 2 (a)). A door device in which a portion can be opened (see FIG. 2C) will be described. On the upper portion of the front side (opening side of the frontage) of the case main body 1 such as a built-in display case, a right and left longitudinal seal packing 9 arranged on the back side of the upper front plate 1a with a gap of a predetermined depth dimension therebetween. Between the first set of doors A
A first upper rail 2 for suspending and supporting the upper portions of A1 and A2 so as to be movable left and right along the frontage of the case body 1.
And the second pair of doors B1 and B2, which support the upper parts of the doors B1 and B2 so as to be movable left and right along the frontage of the case body 1.
The upper rail 3 is fixedly arranged in parallel with each other.

As shown in FIG. 5, the second upper rail 3 is disposed at a position closer to the front of the case main body 1, and the first upper rail 2 is located on the back side of the case main body 1 with respect to the second upper rail 3. Shall be located. As shown in FIG.
A first set of doors A1 and A2 and a second set of doors B that are movable to the left and right sides along the upper rails 2 and 3 of each set.
1 and B2 are alternately arranged in the left-right direction when the frontage of the case body 1 is closed flush.

When the doors are to be opened from the state of being sealed in the same plane, each door is to be opened on the reference plane K (the same vertical plane arranged on the same plane, The door is advanced forward by a predetermined amount with respect to a seal packing 9 inside the case main body 1 described later (a surface where each door is in close contact with the seal packing 9). In the embodiment, the advance amount S1 of the first set of doors A1 and A2 is set.
Is small (10 mm in the embodiment), and the advance amount S2 of the second set of doors B1, B2 with respect to the reference plane K is set large (45 mm in the embodiment).

The lower ends of the first set of doors A1 and A2 are supported by first lower support means 5 slidably supported by the inner rail C1 of the two rails C1 and C2 shown in FIG. ,
The lower ends of the doors B1, B2 of the second set are supported by second lower support means 6 slidably supported by the outer rail D2 of the two rails D1, D2 shown in FIG. And
The amount of forward / backward movement of the first lower support means 5 is set to be small, similarly to the advance amount S1, and the amount of forward / backward movement of the second lower support means 6 is set to be large, similarly to the advance amount S2.

FIG. 4 is a side sectional view of the mechanism of the upper support means 4 for supporting the upper ends of the first set of doors A1 and A2, respectively, and FIG. 5 is a sectional view of the upper ends of the second set of doors B1 and B2. FIG. 3 shows a side sectional view of the mechanism of the upper support means 4 for supporting. The first set and the second set are different only in a transition guide groove 20a (20b) formed in a slide plate 20 as a guide means described later, and the other configurations are almost common. The configuration of No. 4 will be described below.

The upper edge of the door A1 is in the frontage direction (left-right direction).
, And is fixed via an upper edge member 10 and a packing 11 having an H-shaped cross section, and a bolt-shaped suspension body 13 is erected on the upper edge member 10 via a horizontal pin 12. The upper part of the suspension support 13 is fixed to the front-rear sliding support block 14 by screwing or the like. The front and rear sliding support block 14 can slide back and forth through a pair of left and right sliding support shafts 16 and 16 at a substantially right and left center portion of a support frame 15 having an open lower surface via a slide bearing or a circulator. Supported by door A
1 is configured to be movable in the front-rear direction (in the direction of coming and going with respect to the opening of the frontage) horizontally along the thickness direction.

At the upper end of the support frame 15, a plurality of vertical rolling rollers 17 and a plurality of horizontal rolling rollers 18 are mounted.
These vertical rolling rollers 17 are formed in a first U-shaped cross section.
By rolling on the lower plate of the upper rail 2, the door A <b> 1 is supported so as to be able to move left and right in parallel with the opening of the frontage of the case body 1, and the horizontal rolling rollers 18 are the front and rear inner surfaces of the first upper rail 2. To prevent the swinging of the upper part of the door A1 in the front-rear direction.

In the embodiment shown in FIG. 3, the upper part of one door A1 (A2) is configured to be supported via two support frames 15, 15, but the upper part of the door A1 (A2) is supported in the frontage direction of the door. It can be supported by one to four support frames 15 according to the size of the dimensions. The sliding plate 20 as a guide means (guide) for guiding the suspension support 13 and thus the front-rear sliding support block 14 to move in the front-rear direction is disposed below the front-rear sliding support block 14. Between the inner surfaces of the front and rear walls. The guide rollers 21 mounted on the slide plate 20 are sandwiched between a pair of horizontally long upper and lower guide rails 19, 19 fixed to the inner surfaces of the front and rear walls of the support frame 15, and are slidably contacted so as not to fall off and to be movable left and right. In addition, the sliding plate 20 can be smoothly moved laterally and meandering is prevented.

The hanging support 13 and the sliding plate 20 as a guide are connected to each other through a transition guide groove described later.
When the sliding plate 20 moves a predetermined distance in the left-right direction, the suspension support 13 is associated so as to be forcibly moved in the front-rear direction by a predetermined distance. That is, as shown by the solid line in FIG. 6, a transition guide groove 20a is formed in the sliding plate 20 so as to be shifted by the small distance S1 in the front-rear direction at the left and right ends. The groove 20a is configured such that a middle part in the vertical direction of the hanging support 13 penetrates.

FIG. 5 shows the upper support means 4 for the second set of doors B1 and B2. The support position of the support frame 15 with respect to the second upper rail 3 is such that the support frame 15 is suspended with respect to the first upper rail 2. The position is slightly different from the support position, and the amount of displacement of the transition guide groove 20b formed in the slide plate 20 is set to a large distance S2 as shown by a two-dot chain line in FIG. Other configurations are substantially the same as those for the first set of doors, and therefore, the same components are denoted by the same reference numerals and detailed description thereof will be omitted.

Next, with reference to FIGS. 4 to 8, the closing positions of the doors A1, A2, B1, and B2 (the seal packing is made flush with the opening of the case body 1 at all the doors). 9, a position regulating means 24 for positioning and stopping the support frame 15 as the upper support means at this closed position, and, at this closed position, each door is moved in its thickness direction, that is, each door is closed. Drive means 25 forcibly moving sliding plate 20 as the guide means (guide body) in the left-right direction of the frontage so as to open the front side of case body 1 by distances S1 and S2 from reference plane K. explain.

When a plurality of support frames 15 are used, one slide plate 20 is forcibly moved by connecting the slide plates 20 of the adjacent support frames 15 with a horizontally long connecting member 26. Thus, the sliding plates 20 in all the support frames 15 can be forcibly driven at the same time, and the configuration can be simplified. First, as shown in FIG. 6 and FIG. 8, a fitting groove 2 is formed on the upper surface of one support frame 15 for each door so as to open toward the back of the case body.
The fitting body 27 formed with 7a is fixed.

On the other hand, as shown in FIGS. 6 to 8, the position restricting means 24 is a fixed frame fixed behind the one support frame 15 at the closed position of each door (behind the upper rails 2, 3). A positioning engagement body 30 that is attached to the tip of a moving block 29 movably provided in the front and rear and that can fit into the fitting groove 27a; and a forward / reverse rotatable driving motor 31 as a driving actuator for the moving block 29; Consists of More specifically, a pair of left and right sliding shafts 33 provided at the upper end of the moving block 29 are suspended from the supporting block 32 fixed to the lower surface of the fixed frame 28 so as to be able to slide back and forth. Motor 31 having a pinion 35 meshing with a rack 34 of
It is driven by.

In this case, the sliding shaft 33 and the moving block 29
It is preferable to insert a slide bearing or a circulator for reducing sliding resistance between the bearing and the bearing. With these configurations, the disc-shaped positioning engagement body 30 formed of a roller bearing or the like advances in the thickness direction of the door, and
When the support frame 15 is fitted into the support frame 15 (see the two-dot chain line in FIG. 8), the support frame 15 can be prevented from moving left and right and can be positioned at the closed position. The positioning engagement body 30 is retracted and the fitting body 27
(See the solid line state in FIG. 8), the support frame 15 and thus each door can be moved along the upper rails 2 and 3.

The driving means 25 includes a chain 41 wound around chain sprockets 39 and 40 mounted on a driving longitudinal axis 37 and a driven longitudinal axis 38 disposed on the lower surface of the fixed frame 28 on the left and right, respectively. A pressing piece 45 fixed to the chain 41 is composed of a worm wheel 44 engaged with a worm 43 driven by a forward / reverse rotatable drive motor 42 fixed to the lower surface and attached to the drive longitudinal axis 37.
Presses the pressed piece 46 protruding from the rear side of the slide plate 20 to the right or left to realize the forced movement of the slide plate 20 to the left or right.

That is, in the solid line state of FIG. 6, the chain 41 rotates counterclockwise, and the pressing piece 45 is
The slide plate 20 is pushed right through the
When the left end of Oa is fitted to the hanging support 13, the hanging support 1
3 and the door A1 (A2) is moved a distance S in the direction of the reference plane K.
Push 1 and seal A9 to door A1 (A2)
Can be sealed by pressing the back of Conversely, when rotating the chain 41 clockwise, the pressing piece 45 is
6, the sliding plate 20 is pushed to the left to make the transition guide groove 2
When the right end of Oa is fitted to the suspension support 13, the suspension support 1
The door A1 (A2) is opened by pushing the door A1 (A2) by a distance S1 in a direction away from the reference surface K (seal packing 9).

In the case of the second set of doors B1 and B2,
While moving the sliding plate 20 left and right by the same amount as described above, the amount of displacement in the front-rear direction at the right end and the left end of the transition guide groove 20b is the distance S2. In addition, as shown in FIG.
When the home position sensor 80 disposed on the rear side of the winding of the chain 41 detects the pressing piece 45 located on the front side thereof, the home position is set to stop the rotation of the chain 41. When the first sensor 82 detects the auxiliary piece 81 fixed to the opposite side of the position where the pressing piece 45 is attached to the chain 41, the sliding plate 20 moves rightward to move the transition guide groove 20a. When the second sensor 83 detects the auxiliary piece 81 when the hanging support 13 is positioned at the left end of the (the position where the door is in close contact with the seal packing 9), the sliding plate 20 moves to the left to make a transition. The hanging support 13 is located at the right end of the guide groove 20a, and the open state of the door can be detected.

Next, the structure for supporting and moving the lower ends of the doors A1, A2, B1, and B2 will be described. FIG. 9 is a side sectional view of the mechanism of the first lower support means 5 for supporting the lower ends of the first set of doors A1 and A2, respectively, and FIG.
FIG. 3 is a side sectional view of a mechanism of a second lower support means 6 that supports the lower ends of B1 and B2, respectively. In the first set and the second set, transitions formed in the left and right sliding plates 51 as guide positions and support positions of the lower ends of the doors with respect to the two front and rear lower rails C1, C2 (D1, D2) described later. Guide groove 51a (51
Although there are differences in the displacement amounts S1 and S2 in b), the other configurations are almost common, so the configuration of the first lower support means 5 will be described below with the door A1 as a representative.

In the illustrated embodiment, S1 = 10 mm,
S2 = 45 mm, two lower rails C1, C2 (D1,
The arrangement interval of D2) is 35 mm. As shown in FIG. 3, the lower part of one door A1 (A2) is
Although it is configured to support via the doors 3 and 53, it is possible to support with one to four lower support frames 53 according to the size of the frontage direction of the door.

The lower rails C1, C2 (D
When the length of each door A1, A2, B1, B2 is substantially equal to the length of each door A1, A2, B1, B2, one lower rail accommodates one door, and each door has a front dimension. In the case of a lower rail having a length that is an integral multiple of the above, the plurality of doors can be stored in one lower rail in a plane. As shown in FIG. 9, in a lower support frame 53 having an upwardly open U-shaped cross section fixed on a fixed frame 52 and serving as a guide means (guide body) for guiding the door to move in the front-rear direction. Left and right sliding plates 51 are disposed between the inner surfaces of the front and rear walls of each lower support frame 53.

The four guide rollers 54 mounted on the left and right sliding plates 51 are sandwiched between a pair of horizontally long upper and lower guide rails 55, 55 fixed to the inner surfaces of the front and rear walls of the lower support frame 53, and cannot be dropped and can be moved left and right. The sliding contact allows the left and right sliding plates 51 to move smoothly and laterally and prevent meandering. As shown by the solid line in FIG. 11, the left and right sliding plates 51 for the first set of doors A1 and A2
A transition guide groove 51a is formed at the left and right ends so as to be displaced in the front-rear direction by the small distance S1, and an intermediate portion in the vertical direction of a vertical support shaft 56 to be described later penetrates the transition guide groove 51a. Is configured.

A front / rear sliding block 57 attached to the upper end of the vertical support shaft 56 is provided with a pair of left and right sliding support shafts 58, 58 which are long in the front and rear directions at substantially the center of the lower support frame 53 in the left and right directions. Are supported so as to be able to slide back and forth. On the mounting plate 59 on the upper surface of the front-rear sliding block 57, two front-rear open lower rails C1 and C2 are fixed. A lower edge member 61 is provided along a lower edge of each door A1 (A2) via a packing 60, and a horizontal guide roller 63 is attached to a lower end of a bolt 62 projecting downward from the lower edge member 61. In the case of the door A1 (A2), the horizontal guide roller 63 is slidably fitted to the lower (inner) lower rail C1 of the two lower rails.

Next, a description will be given of the driving means 64 for forcibly moving the door A1 (A2) horizontally in the thickness direction of the door A1 (A2) in the front-rear direction (the direction in which the door A1 comes into contact with and separate from the opening of the frontage). The driving means 64 includes a chain 69 wound around chain sprockets 67 and 68 attached to a vertical drive shaft 65 and a vertical driven shaft 66 disposed on the lower surface of the fixed frame 52 on the left and right, and fixed to the lower surface of the fixed frame 52. The worm wheel 7 that is engaged with the worm 71 that is driven by the driven motor 70 that can rotate forward and reverse, and that is attached to the vertical drive shaft 65.
2, a connecting piece 73 protruding downward from the left and right sliding plate 51 is inserted into the lower plate of the fixed frame 52 and the lower support frame 53 through an insertion slot 74 formed in a horizontally long direction. The left and right sliding plates 51 are connected to the rear side of the drive motor 69 to forcibly move the left and right sliding plates 51 left and right according to the forward rotation and the reverse rotation of the drive motor 70. (See FIGS. 9 to 12).

Therefore, in FIG. 11, the chain 69 pivots counterclockwise to move the left and right sliding plate 51 rightward through the connecting piece 73, and the left end of the transition guide groove 51a is vertically supported. When the door A1 (A2) is fitted on the shaft 56, the door A1 (A2) is pushed by the distance S1 in the direction of the reference plane K, and the back surface of the door A1 (A2) can be pressed against the lower seal packing 75 and sealed (see the solid line state in FIG. 9). . Conversely, when rotating the chain 69 clockwise, when the right and left ends of the transition guide grooves 51a are fitted on the vertical support shafts 56 by pushing the left and right sliding plates 51 to the left, the door A1 (A2) is moved to the reference plane K. It is pushed away by a distance S1 in a direction away from the (lower seal packing 75) to be opened.

In the case of the second set of doors B1 and B2,
While the left and right sliding plates 51 are moved left and right by the same amount as described above, the amount of displacement in the front-rear direction at the right end and the left end of the transition guide groove 51b is the distance S2 (see the two-dot chain line in FIG. 11). In the embodiment, one door A1 (A2, B1, B1
2) two lower supporting frames 52, 52 are arranged,
Left and right sliding plates 5 in both lower support frames 52, 52
1 and 51 are connected by a connecting rod 76. Then, the driving means 64 is arranged only on one lower support frame 52 side,
By the operation of the driving means 64, one of the left and right sliding plates 51 can be forcibly moved, and the left and right sliding plates 51 in all the lower support frames 52 can be forcibly driven at the same time, so that the configuration can be simplified.

FIG. 10 is a cross-sectional view of the support means at the lower end of the second set of doors B1 and B2. The lower end of each door B1 (B2) is the second lower support means 6 shown in FIG. It is slidably supported by the outer rail D2 of the series of rails D1 and D2. In addition, the transition guide groove 51b formed in the left and right sliding plate 51 is different from that of the first set of doors only in that the displacement amount S2 of the transition guide groove 51b is set to be large.
The same components are denoted by the same reference numerals, and detailed description is omitted.

The vertical drive shaft 65 and the vertical driven shaft 66
A pair of left and right sensors 96 arranged on a support frame or the like for supporting
By detecting the auxiliary piece 98 fixed to the chain 69 at 97, the left-right moving end of the left-right sliding plate 51 can be detected. Next, with reference to FIGS. 9 and 10, with the doors A <b> 1 and B <b> 2 arranged flush with each other, the gap closing device 90 for closing the gap with the lower front plate 1 b of the case body 1 is described. The configuration of one embodiment will be described.

That is, as shown in FIGS. 9 and 10, in order to change the doors A1 and B2 from the state where they are flush with each other (solid line state) to the open state (the state indicated by the two-dot chain line), the doors A1 to A2 are required. B2
Must be advanced by a predetermined distance. for that purpose,
Although it is necessary to form a gap of a predetermined depth between the lower front plate 1b of the case body 1 and the front surfaces of the doors A1 and B2 that abut on the left and right seal packing 75, each door A1 and B2 Since the gap is large in a state in which the objects are arranged flush with each other, inconveniences such as a viewer located at the front side of the case body 1 accidentally dropping the article into the gap occur. Thus, the gap closing device 90 for closing the gap is provided on the back side of the lower front plate 1b having the handrail plate 77 fixed to the upper end.
The base end side of the flap plate 91 is connected via a horizontal shaft 92 so as to be vertically rotatable. A lower end block 93a of a link mechanism 93 in which two pieces are flexibly connected to the base end of the flap plate 91 is screwed into a screw rod 94, and the screw rod 94 is rotated only by a drive motor 95 that can rotate forward and reverse. The configuration is as follows.

With this configuration, as shown in FIG. 2A, the front opening of the case body 1 is closed so that the four doors A1, A2, B1, and B2 are flush with each other, and First, when the drive motor 95 of the gap closing device 90 is rotated forward, the lower end block 93a descends as the screw rod 94 rotates, and the link mechanism 93 is rotated.
The lower end of the flap plate 91, which has been in the horizontal state through the lower side, is lowered (see the two-dot chain line state in FIGS. 9 and 10).
The seal piece 91a at the tip of the flap plate 91 is separated from the front surface of the door, and a gap having a predetermined size can be formed in front of the door. Note that the left and right lengths of the flap plate 91 are
Equal to the left and right length (dimension in the frontage direction) of 1 to B2,
The door may be opened and closed by the flap plate 91 at each door location, or the gap may be simultaneously opened and closed by the flap plate 91 having a length equal to the frontage dimension of a plurality of doors. Further, when the gap closing device 90 (not shown) is provided on the upper side of each of the doors A1 and B2, the configuration of FIGS. 9 and 10 may be arranged upside down.

Next, the upper and lower drive means 25 and 64 in all the doors are operated. That is, the drive motor 31 of the upper drive means 25 is operated to activate the positioning engagement body 30.
Is retracted from the fitting groove 27a, and the engagement with the fitting body 27 is released. Further, the upper drive motor 42 is operated to forcibly move the slide plate 20 to the left from the position shown in FIG. 6 via the chain 41 and the pressed piece 46, and the right end of the transition guide groove 20 a (20 b). When the hanging support 13 is located on the side, the upper end of each door moves forward by the distances S1 and S2 via the hanging support 13 and the front-rear sliding support block 14 (see FIGS. 4 and 5). (See the dotted line).

On the other hand, when the drive motor 70 of the lower drive means 64 is operated to forcibly move the left and right slide plate 51 from the position shown in FIG. Since the vertical support shaft 56 is located on the right end side of the transition guide groove 51a (51b), two lower rails C1, C2, D1, D2 are provided via the front / rear sliding block 57.
Also moves forward by the predetermined distances S1 and S2 (see the two-dot chain lines in FIGS. 4 and 5).

In this state, as shown in FIG.
The lower rail C1 of the first set of doors A1 and A2 and the lower rail D1 of the second set of doors B1 and B2 are arranged in a line, so that the horizontal guide roller 63 at the lower end of each door can be inserted.
Similarly, the lower rail C2 in the first set and the lower rail D2 in the second set are arranged in a line, and the horizontal guide roller 63 at the lower end of each door can be inserted. And the lower rail D2
2 is located at the lower end of the second set of doors B1 and B2.
As shown in (c), one door B1 is connected to the first set of doors A.
After being manually moved from the lower rail D2 to the lower rail C2 so as to be located on the front side of No. 1, the door B2 is sequentially moved to a place where the door B1 was. Further, when the door A2 located at the right end passes through the lower rail C1 and the lower rails D1 and D1 in a row and is moved sideways, the four doors overlap in a front and rear two rows, and the front opening of the case body 1 is closed. 2C, the right half is largely opened. Conversely, when the doors A1, B1, B2 are moved rightward, the left half of the case body 1 can be largely opened. In addition, FIG.
When the door B1 is moved leftward while the door B2 is moved rightward, the left and right central portions of the case main body 1 can be greatly opened.

To close the doors, the operations may be performed in the reverse order of the above operation. That is, all the doors A1 to B2 are arranged flush with each other, and the seal packings 9 and 75 made of soft rubber or the like are used.
Then, when the drive motor 95 is rotated in the reverse direction to rotate the flap plate 91 horizontally upward, the sealing piece 91a made of soft rubber or the like at the tip of the flap plate 91 presses against the front surface of the door. Thus, it is possible to reliably close the gap on the back side of the lower front plate 1b.

FIG. 13 shows a second embodiment of the gap closing device 90. The horizontal shafts 92, 92 disposed on the back side of the upper and lower front plates 1a, 1b are respectively provided with flap plates 91, 92 via torsion springs 100. On the upper side of the doors A1 and B2, the flap plate 91 is vertically rotatable between a horizontal position in which a gap is closed and an upward and substantially vertical position.
On the lower side of 2, the flap plate 91 is disposed so as to be vertically rotatable between a horizontal position in which a gap is closed and a vertical position by turning downward. The torsion spring 100 is configured to bias the flap plate 91 to a horizontal position. A pulley 102 is attached to an output shaft of a forward / reverse rotatable drive motor 101 fixed to the back surfaces of the upper and lower front plates 1a and 1b. Is wound around the pulley 102. According to this configuration, when each drive motor 101 is rotated forward and the wire 103 is wound up via the pulley 102, each flap plate 91 rotates,
When it is in a substantially vertical posture, it is drawn into the gap and held. Conversely, when each drive motor 101 is rotated in the reverse direction, the wire 103 is paid out from the pulley 102 with the help of the urging force of the torsion spring 100, and each flap plate 91 rotates in the horizontal direction, and each flap plate 91 The sealing piece 91a made of a soft rubber or the like at the tip of the lower front plate 1a presses against the front surface of the door.
The gap on the back side of can be reliably closed.
Also in this embodiment, the left and right lengths of the flap plates 91 are made equal to the left and right lengths (dimensions in the frontage direction) of the doors A1 and B2 so that the doors can be opened and closed by the flap plates 91 at each location. Alternatively, the gap may be simultaneously opened and closed by a flap plate 91 having a length equal to the width direction of a plurality of doors.

The third embodiment of the gap closing device shown in FIGS.
In the embodiment, a pair of left and right frame members 104, 104 opened to the lower surface of the handrail plate 77 is used, using a handrail plate 77 disposed at the upper end of the lower front plate 1b of the case body 1.
A sliding block 106 is fitted on a longitudinally extending sliding shaft 105 (or a plurality of sliding shafts), and the sliding block 106 is fixed to an upper piece of the lower front plate 1b with a screw 107. Further, a rack body 108 which is longitudinally longitudinal and has a tooth surface on a lateral side is fixed in the frame body 104, and the lower front plate 1b
A pinion 110 that is rotationally driven by a forward / reverse rotatable drive motor 109 fixed to the side is engaged with the rack body 108. A seal 111 made of soft rubber or the like is projected rearward from the rear end edge of the handrail plate 77.

According to this configuration, when all the doors A1 and B2 are brought into contact with the seal packing 9 in a flush manner, and then the drive motor 109 is rotated in the reverse direction, the rack 108 meshes with the pinion 110. As shown by the solid line in FIG.
Is separated from the front of the door and a gap can be opened. Conversely, when the drive motor 109 is rotated forward, as shown by the two-dot chain line in FIG. 16, the handrail plate 77 is retracted so that the seal 111 presses against the front surface of the door, and the gap can be closed. .

Further, in the illustrated embodiment, the first set of doors is provided with the seal packings 9 and 7 at the front opening of the case body 1.
5 is slightly away from the doors, but the doors that are not moved in the left and right direction (positionally fixed doors) are not provided with the driving means 64 in the front-rear direction, and are driven only in relation to the set of doors to be moved. Needless to say, the gap closing device of the present invention can also be applied to a device configured to include the gap 64.

[0047]

As described above, the device for closing the gap between the opening of the case body and the door according to the first aspect of the present invention is provided within the horizontally long gap formed on the back side of the front plate of the case body. After moving at least one set of doors such as a plurality of sets of glass plates or the like arranged in the same plane in the thickness direction, the set overlaps with the wide surface of the other set of doors in the gap. So that it can be moved in parallel so that on the back side of the front plate, the base end side of a closing plate for closing the gap is brought into contact with and separated from the front surface of the door arranged flush. It is arranged to be able to rotate up and down, and the front end side of the closing plate is in front of the door.
A driving means is provided for changing and driving the posture to be substantially horizontal so as to abut, and the posture in which the front end side is retracted to the back side of the front plate.

According to this configuration, the closing plate rotates forward and backward from the front plate only by rotating between the horizontal closing position and the substantially vertical retreating position on the back side of the front plate of the case body. The closing plate does not protrude, does not require a retreat space for the closing plate in front of the front plate, and does not become bulky. Also,
Even when the closing plate is retracted, the position of the front plate of the case body remains unchanged, and the closing plate is retracted on the back side of the front plate, so that the closing plate is obstructed when an operator enters the case body. This has the effect that it does not occur.

The device for closing a gap between the opening of the case main body and the door according to the second aspect of the present invention is arranged flush with a horizontally long gap formed on the back side of the front plate of the case main body. At least one of a plurality of sets of doors such as glass plates
After moving one set of doors in the thickness direction, the pair of doors is configured to be able to move in parallel so as to overlap the wide surface of the other set of doors in the gap, and the front plate is configured to close the gap. And a driving means for moving the closing plate back and forth in a substantially horizontal state so as to come into contact with and separate from the front surface of the door arranged flush.

According to this configuration, although the front end of the closing plate at the retracted position projects slightly forward from the closed state,
Since there is no need for a large evacuation space as in the case where a conventional L-shaped cross-section part rotates back and forth, an effect is obtained that the installation space for the display case can be made compact.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a case body and a door device.

FIGS. 2 (a) to 2 (c) are action explanatory views each taken along line II-II in FIG. 1, and FIG. 2 (a) is a cross-sectional view in which four doors are closed flush. ) Is a cross-sectional view of a state in which the second set of doors B1 and B2 are largely opened forward, and (c) is a first set of doors A.
FIG. 6 is a cross-sectional view of a lower plate having a large opening at a front portion of a case body in which a second set of doors B1 and B2 are disposed in front of the doors 1 and A2.

FIG. 3 is a schematic front view of an upper and lower part of a door with a partially cutout;

FIG. 4 is a side sectional view showing upper support means and the like of the first set of doors A1 and A2.

FIG. 5 is a side sectional view showing upper support means and the like of a second set of doors B1 and B2.

FIG. 6 is a plan view of a support unit, a position regulating unit, and a driving unit in a closed position.

FIG. 7 is a view taken along line VII-VII of FIG. 6;

FIG. 8 is a side sectional view taken along line VIII-VIII in FIG. 6;

FIG. 9 is a side sectional view of a gap closing device and the like at a lower portion of the first set of doors A1 and A2.

FIG. 10 is a side sectional view of a gap closing device and the like at a lower portion of a second set of doors B1 and B2.

11 is a plan view taken along line XI-XI of FIG. 12;

FIG. 12 is a view taken along line XII-XII of FIG. 11;

FIG. 13 is a side sectional view showing a second embodiment of the gap closing device.

FIG. 14 is a schematic plan view showing a third embodiment of the gap closing device.

15 is a sectional view taken along line XV-XV in FIG.

FIG. 16 is a sectional view taken along line XVI-XVI of FIG. 14;

[Explanation of symbols]

A1, A2, B1, B2 door C1, C2, D1, D2 Lower rail 1 Case body 1a Upper front panel 1b Lower front panel 2 First upper rail 3 Second upper rail 4 Upper support means 5 First lower support means 6 Second lower support means 9 Seal packing 51 Left and right sliding plate 51a, 51b Transition guide groove 53 Lower support frame 54 Guide Roller 56 vertical support shaft 57 Back and forth sliding block 58 sliding support shaft 64 drive means 69 chains 70 Drive motor 77 Railing 90 Gap closing device 91 Closing plate 91a seal 92 horizontal axis 93 Link mechanism 93a Lower block 94 Screw rod 95 Drive motor

Continuation of front page (56) References JP-A-11-32876 (JP, A) JP 4-43553 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) E06B 7 / 205 E06B 7/18 A47F 3/00 E05D 15/10

Claims (2)

(57) [Claims] A thickness of at least one of a plurality of doors, such as a plurality of sets of glass plates, which are arranged flush with each other in a horizontally long gap formed on the back side of a front plate of a case body. After being moved in the direction, it is configured to be able to move in parallel so as to overlap with the wide surface of the other set of doors in the gap, and on the back side of the front plate, there is provided a base plate for closing the gap. An end side is vertically rotatably arranged so as to be in contact with and separate from the front surface of the flushly arranged door.
A posture to be substantially horizontal so as to contact the front surface of the tip
Side is retracted to the back side of the front plate and
A device for closing a gap between a door and an opening in an opening of a case main body, the driving device comprising a driving unit for driving the gap. 2. A plurality of doors, such as a plurality of doors, such as glass plates, which are arranged flush with each other in a horizontally long gap formed on the back side of the front plate of the case body, and have a thickness of at least one set. After moving in the same direction, it is configured to be able to move in parallel so as to overlap with the wide surface of the other set of doors in the gap, and the front plate is provided with a closing plate for closing the gap. A door in an opening of a case body, comprising: a driving means for moving back and forth in a substantially horizontal state so as to be in contact with and separated from a front surface of a door arranged in a shape, and for moving the closing plate back and forth. And gap closing device.