JPH05524Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a locking device for a filing cabinet, in which the operating parts including the cylinder lock are made into a unit, thereby making installation extremely easy.

Next, we will explain the details of an example of a horizontally mounted filing cabinet that is wider than its depth. 1 is the cabinet body, 2, 2... are the drawers, and the main body 1 is shown in Figures 2 and 4. As shown in the figure, the front stile portion 3 has an approximately square cross section with the front edge bent inward.
Further, a reinforcing plate part 3' having a substantially O-shaped cross section is integrally formed at the rear thereof, and the side edges and rear edges are respectively folded downward to form an engaging edge 4, and the inner edge thereof is folded downward. The top plate 5, which has been bent to form a downward bent edge 4', is attached to the upper edges of the side plates 6, 6 and the rear plate 7, respectively.
The engaging edge 4 is superimposed and fixed to the bent edges 6', 6', and 7' of the upper edge of the side plate 8, and the front reinforcing plate 8 having a rectangular cross section at the front of the side plate and the inward bent edge behind it. A fitting groove 10 is formed between 9, into which a key plate 11 having a U-shaped cross section is fitted vertically and slidably, and a locking piece 12 attached to the key plate 11 locks the drawer 2. It is becoming possible to do so. The locking piece 12 may be pivoted to the side plate front reinforcing plate 8, and the rear end of the locking piece 12 may be rotated by operating the key board 11 to lock the drawer 2.
In FIG. 2, reference numerals 13 and 13' designate holes for mounting a drawer suspension device provided in the front reinforcing plate 8 and the rear reinforcing plate 8', respectively. Although not shown, a bottom plate is attached to the lower portions of the side plates 6, 6 and the rear plate 7.

3 and 4, 14 is a lock cover, and this lock cover 14 includes a horizontally long front plate part 14a and a bottom plate part 1.
4b and a rear plate part 14c, and a side plate part 14d is attached to the side end part.A mounting plate 15 having a substantially square cross section is fixed to the substantially central part of the bottom plate part 14b, and a cylinder lock 16 is attached to the mounting plate 15. Mounting plate part 1 on the left and right side of
6a and 16a are screwed 16' and 16', and the cylinder lock 16 projects forward from a horizontally long opening 17 formed in the front plate portion 14a of the lock cover.

The rear end of the eccentric shaft 16b of the cylinder lock 16 is pivotally supported 16' on the rear plate part 14c of the lock cover, and the left and right key operating rods 18, 18 are attached to the eccentric shaft 16b and are pivotally supported on the side plate part 14d of the lock cover. The inner end portions of the two are engaged with each other through guide pieces 19, 19 made of synthetic resin.

As shown in FIGS. 5 to 7, the guide pieces 19, 19 have a rectangular cross section and have a thinner end portion, with a thinner portion 19a.
has a horizontally elongated engagement hole 19b, the base of the thin part 19a has a straight groove 19c and an arcuate engagement piece 19d, and the tip has a planar step 19e and an arcuate head. The inner end of the key operating rod 18 is fitted into the support hole 19g of the thick part, and the head 19f
is fitted into the straight groove 19c of the other side, and the thin part 19a,
19a are rotatably overlapped with each other, and the engagement hole 19b is
The eccentric shaft 16b of the cylinder lock is slidably passed through the lock unit A to constitute the lock unit A. key operating rod 1
A locking protrusion 18a is provided on the circumferential surface of the central portion of the 8 in the front and back direction.
18a is formed by crushing etc., and this locking protrusion 1
8a, 18a are engaged with the edges of the fitting hole 14d' of the side plate portion 14d, and a flat plate-shaped engagement portion 18b is formed by crushing or the like at the outer end of the key operating rod.

To assemble this lock unit A, for example, first insert the inner end of the key operating rod 18 into the fitting hole 14 of the side plate.
d' from the outside and alternately rotate it in the front and rear directions so that the locking protrusions 18a, 18a sequentially pass through the fitting hole 14d' and lock the hole edge of the hole 14d' from the inside, or After passing the locking protrusions 18a, 18a through cutout grooves (not shown) provided above and below the edge of the hole 14d', the key actuating rod 18 is rotated 90 degrees to lock the lock from the inside to the edge of the hole. Then, the inner edge thereof is fitted into the support hole 19g of the guide piece 19, and then the guide pieces 19, 19 are combined with each other, and the eccentric shaft 16 is inserted into the engagement hole 19b.
This can be easily done by inserting the cylinder lock 16 into the lock cover 14 through the opening 17 of the lock cover front plate part 14a while fitting the cylinder lock b, and by screwing the mounting plate part 16a to the mounting plate 15 with screws 16', 16'. Can be assembled.

The front surface of the front plate portion 14a of the lock cover 14 has a cross section V.
Letter-shaped locking protrusions 20, 20... are protruded by cutting and raising at appropriate intervals, and the rear plate part 14c of the lock cover
A mounting plate portion 14e is provided on the upper edge of the lock unit A to protrude rearward, and the locking convex portions 20, 20, . . .
An engagement hole 3 drilled in the rear plate part 3a of the top plate front stile part 3
c and lock the cylinder lock 16 to the rear plate portion 3a.
The mounting plate part 14e of the lock cover is screwed 21 to the reinforcing plate part 3' of the top plate 5 and attached to the top plate front stile part 3. The engaging portions 18b at the outer ends of the lock operating rods 18 are engaged with the engaging holes 22 (FIG. 2) at the upper ends of the key plates 11 on both sides of the cabinet body 1. The above locking protrusion 2
0 and its engagement hole may be provided in mutually opposing members.

Since this locking device has the above-described structure, by rotating the eccentric shaft 16b with the lock inserted into the cylinder lock 16, the key plate 1 is moved through each lock operating rod 18.
1 can move up and down to lock or unlock the drawer 2, but when the eccentric shaft 16b is at an intermediate height, the circular heads 19f of the guide pieces 19 touch each other as shown in FIG. Straight groove 19c of mating guide piece 19
At the top or bottom position of the eccentric shaft 16b, the circular engagement pieces 19d of the guide piece 19 touch the planar step 19e of the other guide piece 19, as shown in FIG. Since they are in contact with each other, there is no loosening during operation, and smooth operation is possible at all times. In addition to what is shown in the drawings, the above-mentioned operating section may include, for example, the key operating rod 1.
The key operating rod 18 is fixed by providing two sets of locking pieces 18a, 18a at appropriate intervals in the axial direction, and having these locking pieces grip the edge of the engagement hole 14d' in the side plate of the lock cover.
As long as the movement of the guide piece 19 in the left and right direction is prevented, the guide piece 19 may be simply provided with a horizontally elongated engagement hole 19b for the eccentric shaft, or a forked guide piece 19 having a groove at the tip may be used. can be used. Also, only one side of the drawer can be locked by using only one of the key operating rods 18, 18, or by using the lock unit A with the key operating rod 18 provided only on one side, the key board 11, etc. is also possible.

By using the lock unit A as described above, the present invention can be easily installed, significantly simplifying the assembly work, and can be replaced with a key operating rod 18 of an appropriate length even for cabinets with different dimensions. The same lock unit A can be used by simply doing the following, which is extremely convenient. The device of the present invention can also be used to lock revolving doors, etc.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is an external perspective view of a filing cabinet equipped with a lock unit according to the present invention.
The figure is an exploded perspective view, Figure 3 is a front view of the lock unit, Figure 4 is a vertical side view of the same, Figure 5 is a plan view of the guide piece, Figure 6 is a front view of the same, and Figure 7 is a rotational view. FIG. 1... Cabinet body, 2... Drawer, 5...
Top plate, 6... Side plate, 7... Rear plate, 8... Side plate front reinforcement plate, 10... Fitting groove, 11... Key plate, 12...
...Latching piece, A...Lock unit, 14...Lock cover, 15...Mounting plate, 16...Cylinder lock, 17
...Opening, 18...Key operating rod, 19...Guide piece.

Claims (1)

[Scope of utility model registration request] A cylinder lock 16 is fixed in a lock cover 14 having a front plate part 14a and a rear plate part 14c, and a side plate part 14d at the side end.
b, the inner end of the key operating rod 18, which is pivoted to the side plate 14d, is inserted into a horizontally elongated engagement hole or groove 19.
b to form a lock unit A, and the lock unit A is attached to the lock cover 14.
The cylinder lock 16 is passed through the front plate part 14a of the lock cover to face the opening 3d formed in the front stile part 3 of the main body, and the cylinder lock 16 is attached to the lower side of the main body top plate 5 through A key board 1 having an outer end 18b of 18 installed vertically inside the cabinet main body so as to be movable up and down.
1. A locking device for a filing cabinet that engages with 1.