JPH0426604Y2 - - Google Patents

Description

[Detailed Description of the Invention] <<Industrial Application Field>> The present invention relates to a locking device for a shutter for a library.

《Prior Art and Problems》 Conventionally, a shutter for a library has had a pull part at the bottom end for opening and closing the shutter door, and a lock part for locking the shutter door.

For this reason, each time the shutters were unlocked or unlocked, it was necessary to bend down, and this movement was particularly troublesome for women.

《Purpose and structure of the present invention》 The present invention is designed to locate the lock at a height that is easy to operate, and the locking rod that works with the lock does not get in the way of opening and closing the armor door, making it easier to install the lock. To obtain a locking operation for a shutter for a library in which the handle for opening and closing the door is at a height that is easy to operate and is formed in a position where the opening and closing force is applied evenly to the left and right sides of the shutter when the shutter is opened and closed. With the objective of Holds a locking rod that is interlocked with the lock so as to be movable from side to side so as to engage with the left and right side plates of the shutter to lock the shutter door, and also holds the front part of the lock attached to either the left or right side of the lock mounting slat. A lock cover and a front cover having almost the same shape as the lock cover are provided symmetrically on the front surface of the lock mounting slat, so that the central part of the lock mounting slat is used as a handle for opening and closing the armor door.

"Example" Examples will be described below based on the drawings.

FIG. 2 shows a library equipped with the present invention, in which a storage body 13 is formed by a top plate 1, left and right side plates 11, 11, a bottom plate 12, and a rear plate (not shown).

Numeral 2 denotes a shutter that is slidably installed from the front to the top and rear of the storage body 13. The shutter 2 is composed of a number of unit slats 3 connected to each other, a pull slat 4 located at the lower end of the shutter 2, and a lock attachment slat 5 located at a predetermined height.

The unit slat 3 is made of extrusion molded synthetic resin, and includes a hollow horizontally elongated base body 31, a concealing protrusion 32 that projects upward from the front surface of the base body 31, and a fitting that projects upward from the upper end of the central portion of the base body 31 in the front-rear direction. Joint ridge 3
3, and a fitting groove 34 formed at the lower end of the center in the front-rear direction of the base body 31 corresponding to the outer fitting protrusion 33, and the left and right ends are made of synthetic resin on the inner surface of the front end of the left and right side plates 11, 11. Gender-shaped cross-section guide 1
4 and is fitted into a sliding groove 15 formed.

The fitting protrusion 33 is made of soft synthetic resin, and the other parts are made of hard synthetic resin.

The lock mounting slat 5 is made of extrusion molded synthetic resin, and includes a substrate 51 having a substantially C-shaped cross section, and the substrate 5.
holding pieces 50, 50 of a locking rod, which will be described later, formed at predetermined locations on the back surface of 1; a fitting groove 52 that fits with a fitting protrusion 33 of the unit slat 3; and a fitting groove 34 of the unit slat 3. It consists of a fitting protrusion 53 that fits into the fitting grooves 55, 55, a stepped portion 56,
56, positioning holes 5 of the lock cover 7 and front cover 8 to be described later on the left and right end sides of the front part 57 of the board 51
8, 58, and a lock attachment hole 59 is formed from the center of the right side.

Also, by cutting out a predetermined width on the left and right end sides of the upper and lower projecting pieces of the board 51, the sliding grooves 15 of the side plates 11, 11 are cut out.
Fitting protrusions 57, 57 are formed to fit into.

Note that the fitting protrusion 53 is molded with soft synthetic resin, and the other parts are molded with hard synthetic resin.

In the lock mounting slat 5 configured as described above, the fitting protrusion 53 fits into the fitting groove 34 of the unit slat 3, and the fitting protrusion 33 fits into the fitting groove 52.
It is installed between unit slats 3 at a height that allows the user to operate the lock, which will be described later, without bending down.

The pull slat 4 is formed in the same manner as the lock mounting slat 5 which does not have a lock mounting hole 59 and positioning holes 58, 58 formed therein.

A locking device 6 is attached to the lock mounting slat 5 and is composed of left and right locking rods 61, 61, a first crank rod 62, a second crank rod 63, 63, and a lock 64.

The locking rods 61, 61 have left and right end portions bent rearward and outward into an L-shape, and have engaging protrusions 6 that engage with engaging holes (not shown) formed on the inner surfaces of the side plates 11, 11.
0 and 60, and is held movably from side to side between holding pieces 52 and 52 provided on the back side of the lock mounting slat 5.

The second crank rods 63, 63 have one end pivotally connected to the end of the locking rod 61, 61, and the other end to the first end.
The upper and lower parts of the crank rod 62 are pivotally connected to each other so as to face each other.

The first crank lever 62 is connected to the rear end of the lock 64, changes from a standing position to a collapsed position in conjunction with the lock operation, and moves the locking rods 61, 61 from side to side via the second crank rods 63, 63. Have it locked.

The lock 64 is held at its rear part in a lock mounting hole 59 of the lock mounting slat 5 and at its front part in a lock hole 71 of a lock cover 7 (to be described later), and is attached to the front inner surface of the lock mounting slat 5 with a mounting nut 65. It will be done.

The lock cover 7 has fitting protrusions 72 and 73 that fit into the fitting grooves 55 and 55 of the lock mounting slat 5.
are formed vertically, and the left side end portion is bent backward to form a left side concealing portion 74, and the left side end portion is bent rearward into an L shape to form a right side concealment portion 75. Positioning protrusions 76 that fit into the positioning holes 58, 58 of the lock mounting slat 5 are formed to protrude rearward, and a lock hole 71 is formed at the left end of the front surface. The front cover 8 has fitting protrusions 81 and 82 formed on the top and bottom to be fitted into the fitting grooves 55 and 55 of the lock mounting slat 5, and the right side end is bent backward to form the right side concealing part 83 and the left side end. Bend it backwards into an L shape and remove the left concealment part 8.
4, and a positioning protrusion 85 that fits into the positioning holes 58, 58 of the lock mounting slat is formed on the rear surface of the left concealing part 84 to protrude rearward, and the width is the same as that of the lock cover 7. and are arranged symmetrically.

9 is fitted into the front surface of the lock mounting slat 5 from the side, is prevented from escaping forward by the step portions 56, 56, and has a substantially C-shaped cross section located between the lock cover 7 and the front cover 8. By changing the color of the unit slat 3 and the lock mounting slat 5 with the handle member made of a thin steel plate, it is possible to give the shutter 2 a design change similar to the lock cover 7 and the front cover 8.

The present invention is constructed as described above and assembled as follows.

Each fitting protrusion of the unit slat 3, lock mounting slat 5, and pull slat 4, 33...5
3. Fit the handle member 9 from the front end side of the lock mounting slat 5 of the armor door 2 formed by fitting and connecting the fitting holes 34...52 and position it in the center.

Next, insert the fitting protrusions 72, 73, 81, 82 from the left and right end sides of the lock mounting slat 5,
Fit the positioning holes 58, 58 and the positioning protrusions 76, 85 of the covers 7, 8, attach the lock cover 7 and front cover 8 at symmetrical positions on the left and right ends, and recess the front center part of the lock mounting slat 5. By doing so, the handle portion 10 is formed.

Next, insert the lock 64, the lock hole 71, and the lock installation hole 59.
, and attach it to the lock mounting slat 5 using the mounting nut 65.

That is, the lock mounting slat 5 has a cross section of approximately C.
Since the lock 64 is formed in a letter shape, the lock 64 is fitted in the lock mounting slat 5, does not protrude forward, and does not interfere with the opening and closing of the shutter 2.

Next, the locking rods 61, 61 are inserted between the holding pieces 50, 50 from the left and right end sides of the rear surface of the lock mounting slat 5, so that the engaging protrusions 60, 60 face outward from the left and right ends, and the other end is pivotally connected to one end of the second crank rods 63, 63, and further connected to one end of the second crank rods 63, 63.
The other ends are pivotally connected to the upper and lower ends of the first crank rod 62, and then the first crank rod 62 is connected to the lock 6.
4, and the locking rods 61, 61 can be moved left and right in conjunction with the unlocking/locking operation of the lock 64.

The sliding grooves 15, 15 are formed in the side plates 11, 11 at the left and right ends of the armor door 2 configured as described above.
and is slidably attached to the storage body 13 from the front part through the upper part to the rear part.

In the embodiment, the handle member 9 is provided on the handle portion 10, but this is not necessarily necessary.

<<Effects of the present invention>> As described above, the present invention greatly facilitates the unlocking operation by placing the lock at a height that does not require bending over when unlocking the lock.
By making the lock mounting slat to which the lock is attached have a substantially C-shaped cross section, the lock can be mounted without protruding in front of the lock mounting slat, so it will not interfere with the opening and closing of the shutter.
Also, by attaching the lock cover and front cover to the left and right ends, the areas where they are not attached become recesses, making it easy to form the handle.
By arranging the lock cover and front cover symmetrically, the handle is formed in the center of the shutter in the left and right direction, so when opening and closing the shutter, the opening and closing force is applied equally to the left and right sides of the shutter. It can be done smoothly.

In addition, since the locking space of the locking device is arranged on the back side of the lock mounting slat, it looks good and it is easy to change the color of the front cover and lock cover to unit slats, lock mounting slats, pull slats, etc. Also, by changing the shape, it is possible to add a decorative accent to the armored door, which tends to be flat, and it has the effect of improving its appearance.

[Brief explanation of the drawing]

The figures show one of the embodiments of the present invention, Fig. 1 is a perspective view of the main parts of the invention, Fig. 2 is a library equipped with the invention, Fig. 3 is a schematic plan view of the invention, and Fig. 4 is a perspective view of the main parts of the invention. FIG. 3 is a schematic plan view, FIG. 5 is a vertical sectional view of the main part, and FIG. 6 is a sectional view of the lock mounting slat. 1... Top plate, 11, 11... Left and right side plates, 13...
... Storage body, 2 ... Armor door, 3 ... Unit slat, 5 ... Lock mounting slat, 6 ... Locking device, 61, 61 ... Locking rod, 64 ... Lock, 7 ...
...Lock cover, 8...Front cover.

Claims (1)

[Scope of utility model registration request] In an armor door that is slidably provided from the front part through the upper part to the rear part of the storage compartment, when the armor door is closed, a roughly C-shaped cross section interposed between unit slats at a predetermined height from the floor surface is used. On the back side of the lock mounting slat, a locking rod that is interlocked with the lock is held so as to be movable from side to side so as to engage with the left and right side plates of the storage body to lock the shutter door when the lock is locked. By providing a lock cover that holds the front part of a lock attached to either side and a front cover that is approximately the same shape as the lock cover symmetrically on the front of the lock mounting slat, the center part of the lock mounting slat can be used as an armor door. A locking device for a library shutter door, characterized by a handle for opening and closing.