JP2772338B2 - Fixed structure of wall-mounted equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing structure for fixing a device such as a clock or a time clock to a mounting surface such as a wall surface.

[0002]

2. Description of the Related Art Conventionally, a device such as a wall clock or a time clock which is usually used in a home or office is hung on a mounting surface such as a wall or a pillar. Is generally hung on a nail (locking screw) hammered into a wall or a pillar.

[0003] However, there are cases where it is required that a person other than a specific administrator cannot remove such equipment from the mounting surface. In order to respond to such a demand, a structure in which a locking projection is provided below the metal fitting in addition to the locking metal and the locking projection is firmly locked by using a screw is adopted. The locking piece and stopper piece of the locking part are installed in the insertion hole of the locking hole of the back plate of the device, and when the device is lowered, the upper surface of the base of this locking piece approaches the guide piece of the regulating part, and the state And move the device in the direction of the latch,
When the lock enters the latch, and finally lowers the device by its own weight, the locking piece of the lock,
There has been a structure in which the device is engaged with the upper side of the latch opening to latch the device (Japanese Utility Model Publication No. 5-28546). The device which is locked by installing the locking piece or the stopper piece of the locking portion in the insertion hole of the locking hole of the back plate of the device is restricted from moving in the left-right direction by the first restriction side of the locking port, The upward movement is restricted by the stopper piece abutting on the second restriction side 22.

[0004]

The first prior art described above has a structure in which a device to be hung is tilted and latched on a latch provided on a mounting surface (wall surface). For this reason, there is a disadvantage that the device cannot be hooked unless there is a certain gap between the device and the mounting surface (wall surface). In addition, a locking projection is provided below the latch, and the locking projection is securely locked using screws. Therefore, installation is troublesome, and when removing the device from the mounting surface (wall surface), Has to be unscrewed, resulting in poor workability.

[0005] The second prior art described above overcomes the disadvantages of the first prior art described above, but is intended to connect the hanging side and the hanging side without a gap, and therefore, the equipment and the mounting. It is necessary to form a locking portion and a locking hole of a special shape on both the surface (wall surface), and the structure is complicated. Furthermore, if a person other than a specific administrator can know the removal method, the device can be removed from the mounting surface (wall surface), and a person other than the specific administrator cannot remove the device from the mounting surface. We cannot meet the demands of doing so. Therefore, an object of the present invention is to provide a simple structure for fixing a wall-mounted device from which a device other than a specific administrator cannot remove the device.

[0006]

SUMMARY OF THE INVENTION A feature of the present invention consists of two frames which are detachably connected to each other, and one of the frames is provided with a latch plate. A through hole and a locking hole are formed in the locking plate, and the head of a locking screw mounted on a wall surface can pass through the through hole. The part communicates with the through hole, and the head of the locking screw cannot penetrate, but only the shaft of the locking screw can be inserted. Further, when one of the frames is connected to the other of the frames, the other of the frames is engaged with the head of the locking screw engaged with the locking hole. There is a locking portion for preventing the locking screw from moving to the through hole.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3, a device 1 is a time clock which incorporates a printing mechanism and a clock mechanism (not shown), and includes two frames, that is, a lower frame 1a and an upper frame 1b. The lower frame 1a and the upper frame 1b are removably connected to each other. As shown in FIG. 2, after the lower frame 1a and the upper frame 1b are connected, the upper frame shown in FIG. By inserting a key (key) 20 into a keyhole 10 provided on the upper surface of 1b and locking (locking) the connection between the two, 1a and 1b is prevented. Therefore, only the specific manager owns the key 20, so that the lower frame 1a and the upper frame 1b are not removed by anyone other than the specific manager.

As shown in FIGS. 1 and 5, on a top surface of a lower frame 1a, which is one of the frames, a pair of machine frames 11, 11 which are erected and opposed to each other are provided. The pair of mechanical body frames 11 and 11 has a cross section bent in an L-shape, and a retaining plate whose cross section is bent in a substantially Z-shape is provided inside each of the pair of mechanical body frames 11 and 11. 12, the rear end plate portion 12b,
12b are attached by screws 13.

As shown in FIG. 1 and FIG.
The front end plate portions 12a, 12a are provided with hook holes 14 at two upper and lower positions, respectively. The hook hole 14 is composed of small through holes 14b, 14b, which communicate with the through hole 14a in both diagonally upper right and lower left directions, centering on the large through hole 14a. Through hole 14a
Has an internal shape through which the head 3a of the locking screw 3 fixedly attached to the wall W in advance can penetrate, and the locking holes 14b, 1
4b, the head 3a of the locking screw cannot penetrate,
Only the shaft portion 3b of the locking screw has an internal shape that can be inserted.

As shown in FIGS. 1, 2, and 5, the upper frame 1b has end plates 12a and 1a of the latching plates 12 and 12 of the lower frame 1a.
Fitting recesses 21 and 21 having an internal shape into which 2a can be fitted are formed. In the fitting concave portion 21, a locking portion 22, a screw head concave portion 23 which is continuous with the locking portion 22, and can accommodate the head 3 a of the locking screw 3, and a bent portion 12 c of the locking plate 12 are provided. A slit 24 is formed continuously on the left and right sides. As shown in FIG. 5, the locking portion 22 is provided with the screw head recess 2.
3 when the upper frame 1b is connected to the lower frame 1a, the head 3a of the locking screw 3 engaged with the locking hole 14b is formed by the side wall 22a. 14
The shift to the direction a, that is, to the left in FIG. 5, is prevented.

Next, the connection of the lower frame 1a and the upper frame 1b,
A method of hanging the device (time clock) 1 on the wall W will be described. The hanging screws 3 are screwed into the wall W in advance with an interval corresponding to the interval between the through holes 14a of the engaging plate 12 of the lower frame 1a, and the thickness of the distal end plate 12a of the engaging plate 12 is reduced. It is stuck leaving. 2 and 5, when the head 3a of the locking screw 3 is passed through the through hole 14a of the locking plate 12 of the lower frame 1a and the lower frame 1a is lowered downward with respect to the wall W as shown in FIGS. As described above, the head portion 3a of the screw rises relatively obliquely upward, and moves into and engages with the locking hole 14b.

Thereafter, the fitting recesses 21, 21 of the upper frame 1b are inserted into the end plates 12a, 12a of the latching plates 12, 12 of the lower frame 1a.
When the upper frame 1b is fitted to the lower frame 1a according to FIG.
As shown in FIG.
, The wall W and the upper frame 1b are in close contact with each other, and the head 3a of the locking screw 3 is located in the screw head recess 23 as shown in FIG. For this reason, the head 3 a of the locking screw 3 is locked by the locking holes 22, 22, that is, the side wall 22 a of the screw head recess 23.
The transition from 4b to the through hole 14a is prevented. For this reason, the head 3a of the locking screw 3 does not deviate from the locking hole 14, and as a result, the device (time clock)
1 does not come off. To remove the device (time clock) 1 from the wall W, first pull up the upper frame 1b to remove it from the lower frame 1a, and then lift the lower frame 1a obliquely upward with respect to the wall W. The head 3a is moved from the engaging hole 14b (FIG.
2a. As a result, the lower frame 1a is
Can be removed from the hook.

Therefore, in the present invention, the state in which the device (time clock) 1 composed of the lower frame 1a and the upper frame 1b is hung on the wall W is maintained as long as the upper frame 1b and the lower frame 1a are connected. Therefore, unless the key 20 (FIG. 3) is inserted into the keyhole 10 provided on the upper surface of the upper frame 1b and the lock (lock) is released, the lower frame 1a and the upper frame 1b do not come off from each other. The device (time clock) 1 cannot be removed from the wall W.

Another embodiment will be described with reference to FIG. In the above-described first embodiment, the fitting recess 21 is formed in the upper frame 1b, but this fitting recess 21 is provided for bringing the wall W and the device (time clock) 1 into close contact with no gap. This is not always necessary and is not provided in the upper frame 31b of this embodiment. That is, in the upper frame 31b, only the screw head concave portion 33 capable of accommodating only the head 3a of the locking screw 3 is formed, and the locking plate 12 attached to the machine body frame 11 has its bent portion. 12c is the upper frame 31b
, And the front end plate portion 12 a thereof is located in front of the screw head concave portion 33. Therefore, when the upper frame 31b is connected to the lower frame (not shown), the side wall 32a of the screw head recess 33 moves from the locking hole 14b of the head 3a of the locking screw 3 to the through hole 14a. Locking portion 32 for preventing the movement of the moving member. Other configurations and operations are
This is substantially the same as the first embodiment described above.

In the present embodiment, the hook plates 12, 12 are
b, the lower frame 1a is hung on the wall W, and then the upper frame 1a is connected. However, the present invention is not limited to this. Stick to the side,
After hooking the upper frame 1b on the wall W, the lower frame 1a may be connected.

Further, recesses 23, 33 for screw heads capable of accommodating the head 3a of the locking screw 3 are formed in the upper frame 1b, and side walls of the recesses 23, 33 for screw heads are used as locking portions 22, 32. However, the present invention is not limited to this, and a locking portion is provided to prevent the head 3a of the locking screw 3 from moving from the locking hole 14b to the through hole 14a by eliminating the screw head recess. I just need.

[0017]

The present invention does not require a special locking portion or locking hole unlike the prior art, and it is possible to secure one of the frames by simply using the head of the locking screw on the other of the frames. This structure can be maintained as long as the other side of the frame is not removed from one side, so that anyone other than a specific administrator can provide a simple structure to fix the wall-mounted device that can not be removed from the device can do.

[Brief description of the drawings]

FIG. 1 is a front view showing a state where one frame and another frame are separated from each other.

FIG. 2 is a rear view showing a state where one frame and another frame are connected to each other.

FIG. 3 is a front perspective view showing a state where one frame and another frame are connected to each other.

FIG. 4 is an enlarged view of a latch plate.

FIG. 5 is an enlarged sectional view taken along line AA of FIG. 2;

FIG. 6 is a sectional view showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device (time clock) 1a One frame (lower frame) 1b, 31b The other frame (upper frame) 12 Hook plate 14a Through hole 14b Hook 22, 22 Hook 3 Hook 3a Hook Set screw head

Claims (1)

(57) [Claims] 1. A fixing structure for a wall-mounted device comprising two frames connected to each other so as to be detachable from each other, wherein one of the frames has a hook plate attached thereto. Has a through hole through which a head of a locking screw attached to a wall surface can penetrate, and a head which is in communication with the through hole and the head of the locking screw cannot be penetrated. And a locking hole through which only the shaft portion of the frame can be inserted. The other of the above-mentioned frames has the above-mentioned locking hole when one of the above-mentioned frames is connected to the other of the above-mentioned frames. A locking portion for engaging the head of the locking screw in the engaged state to prevent the locking screw from moving to the through hole. Construction.