JP4707466B2 - Detachable lifting platform and work platform - Google Patents

Description

The present invention is attached to a work table that is used as a scaffold for an operator and is used by being fixed to a utility pole during a hot-line operation or the like, and a work table that can adjust the height of the worker's scaffold. The present invention relates to a type lifting platform and a work table using the lifting platform .

A conventional work table 100 shown in FIG. 8 is applied to a work table plate 101 on which an operator is mounted, a chain wound around a power pole P, and a power pole P below the work table plate 101. And a fixing means 102 composed of a chain or the like for connecting the rod to the work base plate 101, and the operator can perform hot-line work on the fixed work base plate 101. Do.
However, when the work table is attached to the power pole, the work table may not be attached to a desired position due to obstacles such as a band attached to the power pole in advance. The person will be forced to work in an unreasonable position.

The following invention has been disclosed as a countermeasure against such a problem. This conventional workbench is made up of a tensioner that is arranged between a fastening part that is wound around a power pole and fastened with a belt, and a fixed object on the power pole that is connected to the fastening part. An auxiliary plate that is pivotally connected to a mounting base portion in which a slide connecting material that can be moved up and down by operation is provided so as to be rotatable in a horizontal direction of a predetermined angle, and a tip of a tread plate that is connected to the slide connecting material. And a work plate portion that can fix the position at a predetermined angle (see Patent Document 1), whereby the entire work plate portion on which an operator is mounted can be slid up and down, and a utility pole It can be rotated in a fan shape around the (mounting base). In addition, a mechanism using a hydraulic pump, an electric motor or the like for displacing the worker's scaffold is also considered.
Japanese Utility Model Publication No. 6-56327

  However, in the work table disclosed in Patent Document 1, the vertical length of the mounting table portion must be longer than the normal work table as shown in FIG. 8 by at least the vertical slide range. For this reason (see FIG. 2 of the same document), in order to avoid obstacles such as a band on the utility pole, it may be necessary to attach a large shift from a desired location. In addition, since the mechanism itself is complicated, there is a problem that it takes time and labor for the mounting work, and the cost and weight increase. Moreover, when using a hydraulic pump, an electric motor, etc., it is anticipated that the problem of cost and weight will become still larger.

Therefore, the present invention provides a worktable detachable lifting platform that can adjust a worker's scaffolding to a desired height according to the situation, and a worktable using the same , at low cost and low weight. Is an issue. It is another object of the present invention to provide a work table detachable lifting platform that can be used for a conventional work table and that can be attached to and detached from the work table as needed on site.

In order to solve the above-described problems, a worktable detachable lifting platform according to the present invention includes a worktable plate on which an operator is mounted, and a worktable provided with fixing means for fixing the worktable plate to a power pole. A detachable lifting platform for use by the operator, a lifting platform plate on which an operator is mounted, a column fixed to the lifting platform plate, and a cylindrical body that allows the column to be slidably inserted vertically A plurality of adjustment holes drilled in the column at intervals in the vertical direction; a fixing pin that can be inserted into the adjustment hole; an upper fixing member that contacts the upper surface of the work table plate; and a lower surface of the work table A lower fixing member in contact with the upper fixing member, fixing the cylindrical body to one or both of the upper fixing member and the lower fixing member, and connecting the upper fixing member and the lower fixing member to the work table. Putting on and off the work board by sandwiching the plates and fixing them together with fixtures It is characterized in that attached to the ability.

  With this configuration, the lifting platform can be mounted and used only when it is necessary to adjust the height of the operator's scaffolding, and the working platform and the lifting platform can be separated when not needed or transported. it can. Moreover, since it can be used for a conventional work table, an unnecessary increase in cost can be prevented.

In addition, as a configuration for raising and lowering the lifting platform, a column fixed to the lifting platform, a cylindrical body that allows the column to be slidably inserted in the vertical direction, and a plurality of holes drilled at intervals in the vertical direction Since it has a configuration with an adjustment hole and a fixed pin that can be inserted into the adjustment hole, it is possible to stop the column slide by inserting the fixed pin into the adjustment hole, and the height of the lifting plate is arbitrarily determined can do. In addition, the cost and weight can be reduced as compared with an automatic mechanism using a hydraulic pump, an electric motor, or the like.

In addition, as a configuration for attaching and detaching the lifting platform to and from the work table plate, the upper table includes an upper fixing member that comes into contact with the upper surface of the work table plate, and a lower fixing member that comes into contact with the lower surface of the work table. The upper fixing member and the lower fixing member are fixed to one or both, and the upper fixing member and the lower fixing member are detachably mounted on the work base plate by sandwiching the work base plate and fixing each other with a fixture. since, the upper clamp and the lower clamp, bolt, by a predetermined fixing member such as a nut, can be fixed so as to sandwich the platform plate, the upper fixing member, one of the lower fixing member (or both) Further, by fixing a part of the adjusting means (for example, a cylindrical body in the configuration of claim 2), the entire lifting platform can be attached to and detached from the work table plate.

The upper fixing member and the lower fixing member may be fixed at positions avoiding the ribs formed on the work table plate. Further, the cylindrical body is fixed to the upper fixing member, the lower fixing member is composed of two members, and these two members are arranged so as to sandwich the cylindrical body therebetween. Also good.

Further, by using the work table having the work table detachable lifting platform as described above, a good working environment can be given to the worker at low cost and low weight.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  As shown in FIGS. 1 to 3, the work table 1 according to the present invention includes a work table 2 on which an operator is mounted, a fixing means 3 for fixing the work table 2 to the utility pole P, and the work table 2. It is provided with a lifting platform 6 that can be adjusted in height. In this embodiment, the fixing means 3 includes a connecting means 4 for connecting the work table plate 2 and the utility pole P, and a support means 5 for supporting the work table plate 2 from the lower surface side.

  As shown in FIGS. 1 and 2, the work table plate 2 is a hard member having a rectangular shape (length: about 900 mm, width: about 300 mm) as viewed from above, and a non-slip groove and a rib 10 are formed on the upper surface. Yes. As shown in FIGS. 1 and 2, the connecting means 4 is constituted by members such as a fixing plate 15, a fixing tool 16, a fixing chain 17, and a fastener 18. The fixing plate 15 is fixed to one end 2a of the work base plate 2 by a fixing tool 16 such as a bolt or a nut. The one end 15a of the fixing plate 15 is connected to the fixing chain 17 via a connecting tool 19, and the like. The end 15b is connected to the fixed chain 17 via a fastener 18 capable of adjusting the fastening force. The fixed chain 17 is wound around the utility pole P at the time of attachment, and is fastened to the utility pole P with an appropriate strength by a fastener 18. As shown in FIG. 1, the support means 5 includes members such as a support bar 21 and a support chain 24. The support rod 21 is rotatably fixed to a shaft support portion 22 having one end portion 21 a fixed to the lower surface of the work table plate 2, and the other end portion 21 b is in contact with the power pole P below the work table plate 2. A contact portion 23 is provided. One end 24 a of the support chain 24 is fixed to the lower surface of the work table plate 2, and the other end 24 b is fixed to the support bar 21.

  As shown in FIGS. 1 to 3, the lifting platform 6 includes a lifting platform plate 30, a column 31, a fixing pin 32, an upper fixing member 33, a lower fixing member 34, a fixture 35, and the like.

  The elevating base plate 30 is made of an aluminum material or the like, and is formed in a rectangular shape (length: about 500 mm, width: about 350 mm) wider than the work base plate 2. An arcuate guide 37 that can be hung is provided.

  In this embodiment, as shown in FIGS. 1 and 3, two pillars 31 are provided on both sides of the work base plate 2, and are integrated with the lift base plate 30 so as to hang from the lower surface of the lift base plate 30. A plurality of (three in this embodiment) adjustment holes 40 are formed in each pillar 31. The length of the column 31 is preferably about 400 mm, and the vertical distance of the adjustment hole 40 is preferably about 100 mm. The column 31 is slidably inserted into a cylindrical body 39 fixed to the upper fixing member 33.

  The fixing pin 32 has a shape that can be inserted into the adjustment hole 40, and a refracting portion 43 is formed at the tip thereof as shown in FIG. 4. The refracting portion 43 is rotatably supported on the main body of the fixing pin 32 by a shaft 44, and the fixing pin 32 is prevented from coming out of the adjusting hole 40 by refracting the distal end portion 43 after being inserted into the adjusting hole 40. It has the effect of doing. When the fixing pin 32 is inserted into the adjustment hole 40 and abuts on the upper surface of the cylindrical body 39, the lowering of the column 31 is prevented, and the height of the lifting platform 30 serving as a scaffold for the operator is determined. Further, as shown in FIG. 1, a ring portion 47 is formed on the fixing pin 32, and a wire 48 having one end fixed to a cylindrical body 39 is connected to the ring portion 47, whereby the fixing pin 32 is connected. The prevention of loss is planned.

  As shown in FIGS. 1, 3, and 5, the upper fixing member 33 is disposed so as to come into contact with the upper surface of the work table plate 2, and the cylindrical body 39 is integrally fixed thereto, and the lower fixing member 34. And an appropriate fixing tool 35 such as a bolt or a nut.

  As shown in FIGS. 1, 3, and 6, the lower fixing member 34 is disposed so as to contact the lower surface of the work base plate 2, and is composed of two members. Is arranged to be sandwiched. The upper fixing member 33 and the lower fixing member 34 can be installed at any place except for a portion where the rib 10 on the work table plate 2 is formed.

  With the above configuration, the operator can fix the lift base plate 30 to an arbitrary height by inserting the fixing pin 32 into any of the adjustment holes 40. At this time, by refracting the refracting portion 43 of the fixing pin 32, the fixing pin 32 can be prevented from coming off during the operation. In addition, since the lifting platform 6 according to this configuration is structured to be fixed to the work table plate 2 by the upper fixing member 33, the lower fixing member 34, and the fixture 35, it can be easily and easily attached to and detached from the work table 1 main body. can do. Therefore, it can also be used for a conventional work table, and can be attached and detached as necessary at the site.

  Moreover, as shown in FIG. 7, the lifting platform according to the present invention may be configured to have four columns 51 of the lifting platform 50. Thereby, stability can be improved more.

1 is a front view of a work table according to Embodiment 1. FIG. 1 is a top view of a workbench according to Embodiment 1. FIG. 1 is a right side view of a work table according to Embodiment 1. FIG. It is a figure which shows the structure of the fixing pin of the work bench | platform which concerns on Example 1. FIG. It is a top view at the time of removing the raising / lowering base plate of the work table which concerns on Example 1. FIG. It is a top view at the time of removing the raising / lowering baseplate and upper side fixing member of the work bench | platform which concerns on Example 1. FIG. It is a figure which shows the structure of the working table which concerns on Example 2. FIG. It is a figure which shows the structure of the conventional worktable.

DESCRIPTION OF SYMBOLS 1 Worktable 2 Worktable board 3 Fixing means 4 Connection means 5 Support means 6,50 Lifting table 17 Fixed chain 21 Support rod 24 Support chain 30 Lifting plate 31, 51 Column 32 Fixing pin 33 Upper fixing member 34 Lower fixing member 35 Fixing tool 39 Tubular body 40 Adjustment hole 43 Refraction part P Electric pole

Claims (4)

A detachable lifting platform used for a work table provided with a work table on which an operator is mounted and a fixing means for fixing the work table to a power pole ,
A lifting platform on which an operator is mounted ;
A column fixed to the lifting platform;
A cylindrical body through which the column is slidably inserted in the vertical direction;
A plurality of adjustment holes formed in the pillars at intervals in the vertical direction;
A fixing pin that can be inserted into the adjustment hole;
An upper fixing member in contact with the upper surface of the work table plate;
A lower fixing member that contacts the lower surface of the work base,
The cylindrical body is fixed to one or both of the upper fixing member and the lower fixing member, and the upper fixing member and the lower fixing member are fixed to each other by a fixing tool with the work table plate interposed therebetween. A worktable detachable lifting platform, wherein the worktable plate is detachably mounted on the worktable plate. The worktable detachable lifting platform according to claim 2, wherein the upper fixing member and the lower fixing member are fixed at positions avoiding ribs formed on the worktable plate. The cylindrical body is fixed to the upper fixing member, the lower fixing member is composed of two members, and these two members are disposed so as to sandwich the cylindrical body therebetween. The worktable detachable lifting platform according to claim 1 or 2. Work platform for the operator to get on board,
Fixing means for fixing the work base plate to a utility pole;
The worktable detachable lifting platform according to any one of claims 1 to 3,
A workbench comprising:

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