JPH09173172A - Overturn prevention device for mobile equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device capable of fixing equipment in such a state as propping the ceiling or the like in a fixed installation mode, and further capable of releasing a fixed state via a simple operation. SOLUTION: This overturn prevention device has a contact plate 4 laid on the top plate 12 of an equipment body 10 in such a state as capable of being elevated, and a pair of elevation rods 16 having upper ends jointed to the contact plate 4 and held on a bearing in the equipment body 10 in such a state as capable of being elevated. In addition, the device has a handle 34 rotatably laid on the lower surface of the bottom plate of the equipment body 10 and linked to the elevation rods 16 for the ascent or descent thereof via a rotating operation, and a lock mechanism 38 laid on the lower surface of the bottom plate for locking and unlocking the rotation of the handle 34.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fall prevention device for a mobile device, in which the mobile device can be stably installed and fixed, and the fixed state can be released by a simple operation when moving.

[0002]

2. Description of the Related Art In a mobile device, such as a time display, casters are arranged on the bottom surface of a housing in which mechanical parts are mounted so that they can move on the floor. When the housing is vertically long and narrow, it is easy to fall due to a collision, vibration such as an earthquake, or the like. Therefore,
It is necessary to take measures to secure the installation stability when fixedly installed. FIGS. 5A to 5D show an example of a conventional structure in which the stabilization measures are taken. First, in (a), the top surfaces of a pair of casings 1 having the same height are connected by connecting stays 2 to increase the installation area with respect to the floor surface 3, and in (b), the casings are connected via angle members 4 1 is a structure in which the top surface is fixed to the wall surface 5, (c) is a structure in which the top surface of the housing 1 is fixed to the ceiling surface 7 via a rectangular frame-shaped spacer 6, and (d) is the bottom surface of the housing 1. The bottom plate 8 having a larger area than this is fixed to increase the installation area.

[0003]

However, any of the structures is unsuitable for moving the apparatus. Especially, in the structures (a) to (c), the device is moved or fixed. Each time the mounting screws are removed, the stay 2, the angle member 4, and the spacer 6 need to be removed and mounting work is required. Further, in the structure of (d), although the movement itself can be easily performed, a large installation area is taken for the width of the housing 1,
When installed side by side with other equipment, the bottom plate 7 becomes an obstacle, and there is a disadvantage that it is not desirable in terms of installation space. This invention, when fixedly installed, can be fixed in a tensioned state such as the ceiling surface,
It is an object of the present invention to provide a fall prevention device for a mobile device, which can be released from a fixed state by a simple operation when moving.

[0004]

DISCLOSURE OF THE INVENTION The present invention is directed to an abutting plate which is arranged on a top plate of a housing so as to be able to move up and down, an upper end of which is connected to the contacting plate, and a bearing which can be moved up and down inside the housing. A pair of lift rods, a handle that is rotatably arranged on the bottom surface of the bottom plate of the housing, and is linked to the lift rod to move the lift rod up and down by a rotating operation; Since the lock rod is provided with a lock means for rotating and unlocking, the lock rod is released and the handle is operated when the housing is fixedly installed. Abut the contact plate against the ceiling surface. If it is locked again in this state, the abutment plate is abutted against the ceiling surface with a required abutment pressure to firmly fix the housing. To move the housing from this state, unlock it in the reverse order of the above,
By rotating the handle in the reverse direction, the elevating rod descends, and the contact plate is separated from the ceiling surface so that it can be moved.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 to 4 show a mobile display equipped with a fall prevention device of the present invention. In this display, a display mechanism (not shown) is mounted inside a housing 10 having a wide front surface and a widthwise lengthwise narrow vertical dimension. (See FIG. 4). Figures 1 (a) and (b)
In the above, the contact plate 14 is arranged so as to be able to move up and down on the top surface of the top plate 12 arranged in the upper part of the housing 10, and the lower surface of the contact plate 14 penetrates the top plate 12 and inside the housing 10. It is connected to the upper ends of a pair of lifting rods 16 which are movably lifted.
An upper rotary shaft 20 and a lower rotary shaft 22 are arranged in parallel with each other on the lower surface of the top plate 12 and the upper surface of the bottom plate 18 on the side of each lifting rod 16, and both sides of the upper rotary shaft 20 and the lower rotary shaft 22 are respectively arranged. It is rotatably supported by a pair of bearing portions 24 and 26 fixed on the lower surface and the bottom plate 18.

Timing pulleys 28 are pivotally attached to both ends of the rotary shafts 20 and 22, respectively.
The timing belt 30 is endlessly suspended between them.

By supporting the lower end of the elevating rod 16 via a mounting member 32 fixed to one position of each timing belt 26, the elevating rod 16 is moved by the vertical movement of the timing belt 30 as the timing pulley 28 rotates. Raise and lower. An operation handle 34 is arranged on the lower surface of the bottom plate 18 at the lower side of one side of the lower rotary shaft 22, and a handle shaft 34 a of the operation handle 34 and the rotary shaft 22 are connected to each other as a pair of bevel gears. It is interlocked via 36. The operation handle 34 is provided with a foldable handle rod 34b so that the handle rod 24b can be pulled out and rotated for rotation operation, and can be folded and stored in the operation handle 34 when unnecessary.

A lock mechanism 38 is arranged on the other side of the lower rotary shaft 22. This locking mechanism 38
As shown in the enlarged view of FIG. 2, a bracket 40 is attached to the bottom plate 18.
And a clamp block 42 in the form of a split groove, which is supported via the shaft and bears the rotary shaft 22.
Is screwed in to open and close the groove 42a, and the lower end is the bottom plate 1
8 includes a clamp screw 44 projecting from the lower surface of the clamp screw 8 and an operation handle 46 connected to the lower end of the clamp screw 44. By rotating the operation handle 46, the groove 42a of the clamp block 42 is opened and closed, and the rotation shaft 22 of The rotation is locked and unlocked. The lock mechanism 38
A fixed brake 48 for keeping the rotation torque of the rotary shaft 22 constant is disposed near the position. The upper part of the elevating rod 16 penetrates the bearing sleeve 50 connected to the lower surface of the top plate 12, and the upper end thereof is connected to the lower surface of the contact plate 14 via the connecting rubber 52 as shown in an enlarged view in FIG. Are connected. The connecting rubber 52 is used to press the contact plate 14 while tilting the contact plate 14 in correspondence with the unevenness of the ceiling surface 54. Further, the cushion pad 56 is provided on the upper surface of the contact plate 14.
Is attached and functions as a cushion during pressure contact.

In the above structure, the contact plate 14 is installed on the top plate 12 and the bottom plate 18 is in a state where the lifting rod 16 is located at the lowest position in the housing 10 as shown by the solid line.
It is possible to move on the floor surface by a caster or the like (not shown) provided in the lower part of the. In this state, the lifting rod 16 is locked by the lock mechanism 38, and unnecessary lifting is suppressed. When fixing to the fixed position, the lock mechanism 38 is unlocked by operating the bottom plate 18, and then the handle rod 34b of the operating handle 34 is pulled out and rotated to raise the elevating rod 16 and raise the contact plate. 14 is a top plate 12
The height rises away from the top and hits the ceiling surface 54. This highest position corresponds to the total length of the lifting rod 16. When abutting against the ceiling surface 54, the contact plate 1 is deformed along the inclination of the ceiling surface 54 while deforming the connecting rubber 52.
4 is pressed. After the pressure contact with an appropriate tension, the lock mechanism 38 is re-locked and held in the pressure contact state, whereby the housing 10 is fixed in a tensioned state between the floor surface and the ceiling surface, and an unexpected collision, vibration, or the like occurs. It will prevent the fall due to. In order to move the housing 10 from this state, the lock is released in the reverse order of the above procedure, and the handle 34 is rotated in the reverse direction to lower the elevating rod 16 and lower the contact plate 14.
Can be moved away from the ceiling surface. The ceiling surface includes not only the building surface but also the ceiling surface of a rack or the like in which this housing is stored.

[0010]

As described above, in the fall prevention device for a mobile device according to the present invention, the locking mechanism provided in the housing is locked or unlocked, and fixed and moved only by operating the handle. Since the switching can be easily performed, the work at the time of switching is easier than that of the conventional fall prevention structure, and there is an advantage that the width is not required to be widened, and thus the fitting is good.

[Brief description of the drawings]

1A and 1B are a side sectional view and a front sectional view showing a casing structure of a mobile device equipped with a fall prevention device according to the present invention.

FIG. 2 is an enlarged sectional view taken along line AA in FIG.

FIG. 3 is an enlarged partial sectional view of a B part in FIG.

FIG. 4 is a schematic view of the mobile device.

5A to 5D are explanatory views showing a conventional fall prevention structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Housing 12 Top plate 14 Contact plate 16 Lifting rod 18 Bottom plate 34 Operation handle 38 Lock mechanism

Claims (1)

[Claims] 1. A contact plate disposed on a top plate of a housing so as to be capable of moving up and down, and a pair of lifting rods having upper ends connected to the contact plates and bearings capable of moving up and down inside the housing. A handle that is rotatably disposed on the bottom surface of the bottom plate of the housing and that is linked to the lifting rod to lift and lower the lifting rod by a rotation operation, and that locks and unlocks the handle on the bottom surface of the bottom plate. A fall prevention device for a mobile device, comprising: locking means.