JP3068625U - Library door opener - Google Patents

Abstract

(57) [Problem] To simplify the structure, reduce the number of parts, facilitate the assembling of the door, and at the same time, smoothly open and close and store the door. SOLUTION: A left and right side plate 11a of a library main body 11 and a middle partition plate 1 are provided with a door 12 opened in a 90-degree double door opening shape in the left and right direction.
3 can be pushed into between each other, and a front edge 1 of the partition 13 is provided on the partition 13.
In a state extending to 3a, a pair of parallel support rails 14 having a horizontal U-shaped cross section whose both end portions are bent in the vertical direction are horizontally fixed on the side facing the side plate 11a,
On the other hand, a support plate 17 is continuously provided on the rear edge 12 a side of the door 12 using a hinge 16.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an improvement of a door opening / closing device for a library that can store a door that is opened in a double-leafed shape along a side plate of a library main body.

[0002]

[Prior art]

 For example, as shown in FIG. 6, a conventional library in which a door 2 which is opened in a 90-degree double-opening manner in the left and right direction can be stored by being pushed between the left and right side plates 1a of the library body 1 and the partition plate 3. In the door opening and closing device, a partition plate 3 and a left and right door 2 of the library body 1 are respectively provided between a pair of upper and lower parallel movement mechanisms (commonly referred to as a "tash mechanism") 4 provided between the two members. Support brackets 7 are rotatably mounted on the left and right sides of the ceiling frame 5 and the bottom frame 6 on the front side of the library body 1, respectively. The upper and lower bent portions 8a which are bent at a right angle to the guide rods 8 provided to penetrate the door 2 in the up-down direction are respectively inserted.

[0005] Although not shown in the drawings, projections protruding from the inner sides of the upper and lower edges 2a and 2b of the door 2 are respectively inserted into guide grooves provided at the upper and lower portions of the library body 1 side. doing . Each link, which is a constituent member of the parallel movement mechanism 4, is linked to the door 2 so as to be able to rotate 90 degrees relative to each other so as not to hinder the opening / closing operation of the door 2. . Here, the parallel movement mechanism means that a groove is formed in each of the moving members that move relatively in parallel, and one end of a pair of links of the same length that intersect at the center is respectively pivotally connected to the two moving members. A mechanism for sliding the ends into the above-mentioned grooves, respectively, whereby the door 2 can move forward and backward along the partition plate 3 by this mechanism.

[0004]

[Problems to be solved by the invention]

 In the conventional door opening and closing device described above, it is necessary to adjust the fixed state between the support brackets and the guide rods provided at four places in order to provide a clearance between the library main body and the door, which is extremely troublesome. In short, the work required considerable skill. In addition, since the main body of the library and the door are connected to each other via the parallel movement mechanism, there is a problem that the assembling work of them is troublesome. There is also a problem that the number of parts required for the production of the library, including the parallel motion mechanism, is large, and that an increase in cost is inevitable.

[0005] In addition, the use of the front part in the library is restricted by the presence of the support bracket and the guide rod, and the effective inner dimension of the library is reduced by that much, which causes a problem in the function of the library. . The purpose of the present invention is to solve these problems.The purpose of the present invention is to simplify the structure by eliminating the need for a parallel movement mechanism and guide rods, and to move the door by means of a slider using a support rail and rollers. Not only stabilizes the support state of the door and facilitates opening and closing and the storage operation, but also increases the effective inside dimensions of the library, improving usability and significantly reducing the cost of manufacturing the library. It is an object of the present invention to provide an improved library door opening / closing device that can achieve the above.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the door opening / closing device of the present invention, which is a feature of the present invention, comprises a door that is opened 90 degrees in the left and right direction between the left and right side plates and the middle partition plate of the main body. A horizontal U-shape in which the two end portions are bent up and down on the side facing the side plate in a state extending to the front edge of the partition plate on the partition plate. A pair of parallel support rails having a cross-sectional shape are fixed horizontally, while a support plate is connected to the rear edge of the door using a hinge, and the support plate is connected to the two support rails respectively. In this configuration, door support rollers that are inserted and roll are attached.

[0009] The top and bottom frames on the front side of the main body of the library are provided with projections near the front edge of the partition plate, respectively. It is desirable to prevent the problem of bending to the partition plate side.In addition, the bottom frame on the front side of the library main body is designed to expose a part of the bottom frame facing the passage where the door moves forward and backward. It is preferable that the rolling element is provided so as to be able to roll in order to reduce friction during operation and to smoothly advance and retreat the door.

[0008]

[Embodiment of the invention]

 An embodiment of the present invention will be described below with reference to FIGS. Reference numeral 11 denotes a library body to which doors 12 and 12 which can be opened and closed in a 90-degree double-opening manner are attached. The left and right side walls of the library body 11 are pushed in by the door 12 in the same manner as a conventional library of this type. 11a is a side plate thereof, and 13 is a partition plate therein. A horizontal U-shaped cross section on the partitioning plate 13, both ends of which are bent in the vertical direction on the side facing the side plate 11 a in a state of extending to the front edge 13 a of the partitioning plate 13. A pair of parallel support rails 14, 14 having a shape are fixed horizontally, and a stopper (see FIG. 5) 15 using, for example, a bolt and a nut is provided at a front end portion of each of the support rails 14.

On the other hand, a support plate 17 is continuously provided on the rear edge 12a side of the door 12 using a hinge 16, and the support plate 17 is provided with a roller for supporting a door which is inserted into each of the support rails 14 and rolls. 18 are attached. It is preferable that two rollers 18 are provided at least on the lower support rail 14 in order to stably move the door 2. The position of the door 12 projecting from the library body 11 is restricted by the roller 18 abutting against the stopper 15, and the door 12 can be turned at right angles by the hinge 16 at the stop position, so that the closing operation can be performed as described later. Becomes

[0010] Projections (for example, short cylinders) 19 project from the front frame 13b and the bottom frame 11c on the front side of the library body 11 near the front edge 13a of the partitioning plate 13. Therefore, the door 12 that moves forward and backward due to the presence of the two projections 19 can be prevented from being bent toward the partition 13 by the hinge 16. The projection 19 also functions as a member that prevents the closed door 12 from being unjustly opened by being pressed against the hinge 16 side.

Further, the rolling element (claw having a diameter of 11 mm) is provided on the bottom frame 11c such that the door 2 faces a passage on which the door 2 advances and retreats, and a part thereof is exposed (about 2 mm) on the bottom frame 11c. A rolled steel ball 21 is provided so as to be able to roll, and the presence of the rolling element 21 can reduce the friction of the door 12 when the door 12 advances and retreats. Reference numeral 22 denotes a support frame of the rolling element 21.

According to the above configuration, the door 12 (the door on the left side in the drawing) pulled out from the library main body 11 in FIG. 1 can be bent from the partitioning plate 13 at the hinge 16, and It can be closed like the door 12 on the right. On the other hand, if the left and right doors 12 which are closed are opened 90 degrees in a double-opening manner by the hinges 16, the doors 12 are pushed as it is between the side plate 11 a of the library body 11 and the partitioning plate 13 and stored. be able to. In this case, the door 12 is prevented from bending from the hinge 16 as described above, and the problem of rattling is eliminated, so that the contact with the partition plate 13 can be completely prevented.

[0013]

[Effect of the invention]

 The present invention is as described above, and the door can be easily and reliably opened and closed by basically using only a pair of parallel support rails, rollers and guide protrusions of a support plate hinged to the door, The effective inside dimensions of the library can be widened, greatly improving the usability. In addition, the number of parts required for the device of the present invention is significantly reduced as compared with the above-described conventional device, and the assembly of these devices has a great advantage in terms of work that can be easily performed without requiring skill. The practical value is extremely enormous, coupled with the ability to reduce costs.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, in which a door on one side is opened.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a partially cutaway perspective view showing a door and related components of a support rail thereof.

FIG. 4 is a perspective view of a lower main part with a door removed from that shown in FIG. 1;

FIG. 5 is a perspective view of an upper main part with the door removed from that shown in FIG. 1;

FIG. 6 is a perspective view showing a conventional door opening / closing device for a library, in which left and right doors are opened.

[Explanation of symbols]

 11 is a library main body 11a is a side plate 11b is a top frame 11c is a bottom frame 12 is a door 12a is a rear edge 13 is a middle partition plate 13a is a front edge 14 is a support rail 16 is a hinge 17 is a support plate 18 is a roller 19 is a protrusion 21 Roller

Claims (2)

[Utility model registration claims] 1. A library in which a door that is opened 90 degrees in the left and right direction can be pushed in between the left and right side plates of the library body and the partition plate. A pair of parallel support rails having a horizontal U-shaped cross section whose both ends are bent vertically are fixed horizontally on the side facing the side plate while extending to the front edge of the partition plate. A support plate is connected to the rear edge of the door using a hinge, and a roller for supporting the door, which is inserted into each of the support rails and rolls, is attached to the support plate. Door opening and closing device of the library. 2. A projection is provided on the ceiling frame and the bottom frame on the front side of the library body near the front edge of the partition plate. 2. The library according to claim 1, wherein the rolling element is rotatably provided so that a part of the rolling element is exposed on the bottom frame while the door faces a passage where the door moves forward and backward. Door opening and closing device.