JPH0222830B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a work platform used during interior work of a building or other work.

Conventional structure and its problems Traditionally, when working on the interior of a building or other work, it was necessary to install a pair of stepladders on the floor on the left and right, and to use temporary materials such as a board with a bridge between them. People used to stand on this board to install ceilings and paint walls. However, with this method, it takes time and effort to move a pair of ladders and boards, and in particular, a considerable amount of effort is required to install and move iron stepladders and bridging boards over 4 meters long. Conventionally, temporary materials that can be installed by one person and are easily moved have not been considered.

Purpose of the Invention The present invention is easy to assemble and disassemble, can be stably installed on the floor, can be easily moved to a desired position by wheels with a person on it, and can be easily moved to a desired position with a person on it. The object of the present invention is to provide a work leg body that is easy to use and can be stably fixed with four or more vertical support legs in some cases.

Structure of the Invention In order to achieve the above object, there are two or more vertical support legs fixed through connecting rods or steps, and two support parts that are removable from the vertical support legs, can be assembled freely, and are height adjustable. The above-mentioned work floor, a fixed part fixed via the supporting part, a connecting bearing part which is rotatable through the connecting rod between the vertical support legs and is attached to have vertical movement clearance, and this connecting bearing part. A mounting shaft rotatably supported on the
A unicycle with pedals provided at one end of the mounting shaft, an operating handle provided at the other end, a saddle connected to the connecting bearing, and a caster with a spring attached to auxiliary legs branched from each of the vertical support legs. The vertical movement clearance of this caster is set within the vertical movement clearance range of the mounting shaft of the unicycle or the like.

Since the vertical support legs are supported at four or more points, stability is high when fixed on the floor, and the work floor has a fixing part that can be removed and assembled to the vertical support legs and the height can be adjusted. So it's easy to assemble,
It can also be removed and disassembled. These vertical support legs are fixed by connecting rods or steps, and a unicycle, a handle, a saddle, etc. for operating the unicycle are attached to a mounting shaft supported by a connecting bearing section attached via the support rods. . The vertical movement clearance of the connecting bearing to which the unicycle, etc. is attached is made almost the same as the vertical movement clearance of the spring-loaded casters of the auxiliary legs, which are branched off from the vertical support legs, so that the operator can sit comfortably on the saddle. When you lower the unicycle and put your weight on it, the unicycle descends as one through the saddle, handle, and mounting shaft. However, on the contrary, the biasing force of the spring acts on the spring-loaded caster, and the vertical support leg moves upward via the connecting rod by the vertical movement clearance, opening a slight gap from the ground contact part. . Therefore, the work platform of the present invention can be moved via the casters, and can be easily moved to a desired position by operating the handle and pedals.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments will be described with reference to the drawings. The drawing shows four legs.

Reference numeral 1 denotes vertical support legs, which are fixed via connecting rods 2 and steps 3 and supported at four points. Reference numeral 4 denotes a work floor provided on both sides, the height of which is adjustable through support parts 5 on the vertical support legs 1, and fixed parts 6.
It can now be fixed. Reference numeral 7 denotes a connecting bearing portion, which is attached to the connecting rod 2 of the vertical support leg 1 so that it can rotate and has a vertical movement clearance a. Reference numeral 8 denotes a mounting shaft, which is rotatably mounted on the connecting bearing portion 7, has a unicycle 9 attached to one end, a handle 10 to the other end, and is movable up and down on the fixed portion 6. Reference numeral 11 denotes a pedal, which is arranged so that the unicycle 9 can be rotated with the foot. A connecting portion 12 is connected to the connecting bearing portion 7, and a bearing portion 13 for the saddle is attached thereto. A saddle 15 is attached to the saddle bearing portion 13, the height of which is adjustable, the saddle 15 is rotatable, and is fixed via a fixture 14. 16
is a step, which can be used in combination with step 3 of the vertical support leg 1 to climb onto the work floor 4 in a stairway manner.
Reference numeral 17 denotes an auxiliary leg, to which a caster 18 is attached which branches laterally from the vertical support leg 1 and has a spring at the end so as to be able to move up and down. Due to the bias of the spring of the auxiliary leg 17, when the user sits on the saddle 15 and holds the handle 10, the vertical support leg 1 and the work floor 4 are lifted by the height of the clearance a of the connecting bearing section 7. .
Furthermore, when the worker places his foot on the step 3 that is fixed between the vertical support legs and climbs onto the work floor, the entire vertical support leg 1 comes into contact with the floor surface and can be stably fixed. The auxiliary legs 17 prevent the vertical support legs 1 from falling down in the lateral direction, thereby providing stability as a whole.

In the above embodiment, the case of four-point support has been described, but stability can be maintained if the vertical support legs have four or more points. In this case, the work floor needs to be supported in a height-adjustable and fixed manner via vertical support legs.

Effects of the Invention Since the present invention is constructed as described above, it can be stably fixed to the floor or the ground by the vertical support legs with four or more points of support during work, and in combination with the auxiliary legs, stability is ensured. be able to. The height of the work floor can be freely adjusted via vertical support legs, so it can be used as appropriate depending on the work position.

When the worker sits on the saddle and puts his hand on the handle, the weight of the worker is transferred to the unicycle, so the auxiliary leg is biased by a built-in spring and connected to the connecting shaft of the vertical support leg via the connecting rod with a vertical movement clearance a. As a result, the lower end of the vertical support leg is lifted up and supported by the unicycle and caster, allowing the unicycle to be moved freely to a desired location by turning the pedals.

Therefore, there is no need to prepare a large number of ladders or boards as in the conventional example, and it can be moved freely on level ground or floor surfaces, making it extremely convenient to use even a single device.

In the work platform of the present invention, the vertical support legs and saddle are fixed by the respective fixing parts during work, but when transporting or storing, the fixing parts are released and the vertical support legs, work floor, saddle, and unicycle are fixed. Since it can be disassembled into a handle, etc., it can be transported and stored without being bulky. On the other hand, when assembling, the fixed part can be used to easily create a three-dimensional structure. In this way, the present invention requires a large number of temporary materials when constructing or renovating the interior of a building, compared to the conventional case in which more than one-third of the labor is spent on installing, dismantling, and transporting these materials. This makes it possible to store, transport, assemble, move, and disassemble much more quickly and easily, which has great usability and economical effects.

[Brief explanation of drawings]

The drawing is a perspective view showing one embodiment of the work platform of the present invention. DESCRIPTION OF SYMBOLS 1...Vertical support leg, 2...Connection rod, 3...Step, 4...Working floor, 5...Support part, 6...Fixing part, 7...Connection bearing part, 8...Mounting shaft, 9 ... Unicycle, 10 ... Handle, 11 ... Pedal, 15
... Saddle, 17 ... Auxiliary legs, 18 ... Caster.

Claims (1)

[Claims] 1. Two or more work floors having four or more vertical support legs fixed via connecting rods or steps, two or more support parts that are removable from the vertical support legs, assembleable, and adjustable in height, and said supports. a fixing part that is fixed via the vertical support leg, a connecting bearing part that is rotatable through the connecting rod between the vertical support legs and is attached to have vertical movement clearance, and a connecting bearing part that is rotatably supported by the connecting bearing part. a mounting shaft, a unicycle with a pedal provided at one end of the mounting shaft, an operating handle provided at the other end, and a saddle connected to the connecting bearing portion;
A work leg stand comprising a caster with a spring attached to an auxiliary leg branching from each of the vertical support legs, and a vertical movement clearance of the caster set within a vertical movement clearance range of the mounting shaft of the unicycle or the like.