JP2004032823A - Service platform on pillar - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To get a practical thing after sharp reduction of the cost and the time as to the work for attachment of a service platform and its disassembly and removal. <P>SOLUTION: As a service platform on a pillar which is used to place equipment and material, etc., being equipped with a work table, it is made so that the work table may be properly positioned by rotating, expanding, and contracting an arm and by supporting rotatably the work table. Besides, this service platform regulates the arm so that its rotational angle range may be less than necessary value (within about 45°). <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a workbench used for electrical installation work and communication work and attached to a utility pole.
[0002]
[Prior art]
For example, as a communication work performed using a telephone pole as a work place, connection, branching, terminal processing, and the like for a metal cable, which has been widely known for a long time, are performed by a so-called waist tool attached to a worker's waist. Could do it.
[0003]
However, in connection with the construction of optical cables and the like that have become widespread in recent years, dedicated connection devices that are considerably large and heavy are used. For this reason, a stable and horizontal workbench is required for carrying out work with such connecting devices, work tools, connecting materials and the like.
[0004]
Therefore, at present, logs and steel pipes are set up from the ground, and then a horizontal mount is provided. Alternatively, after a locking member is attached to a telephone pole, a horizontal gantry is simply temporarily provided.
[0005]
[Problems to be solved by the invention]
However, since the above-mentioned logs and steel pipes are large and heavy materials, it takes considerable cost and time to prepare them, carry them into the site, and assemble and remove them. . For example, in a place where electric poles are installed as work sites, these electric poles are arranged at intervals of, for example, several tens of meters, and it is necessary to assemble and remove each of these electric poles. In some cases, work is performed in a mountainous area or the like, but in this case, assembling and removing operations are more difficult, and large-scale materials that require cost are prepared.
Therefore, in consideration of cost and work efficiency, it is required that the work of installing and removing the work table and the like be performed as easily as possible and efficiently in a short time.
In addition, since the horizontal mount that can be attached to the utility pole using the locking member is also relatively large, it requires a relatively large installation space and the mounting position is limited. Also in this case, the installation and removal work requires a lot of time and labor. For this reason, it is currently not widely used.
[0006]
[Means for Solving the Problems]
In view of the above-described problems, the present invention has the following configuration with the aim of providing a pole work table that can be easily installed and removed and that is practically convenient even during actual work. I decided.
That is, a power pole mounting portion having a mounting mechanism for detachably mounting to a power pole, a rotary arm portion rotatably mounted in a horizontal mounting direction with respect to the power pole mounting portion, and rotation of the rotary arm portion. A rotation angle regulating portion for regulating an angle range, a slide arm portion attached so as to be slidable with respect to the rotation arm portion, and a rotatable support for a tip end side of the slide arm portion. And a work table section to be attached.
[0007]
According to the above configuration, the work table on the pole according to the present invention has a work table, and is used, for example, for mounting equipment, tools, materials, and the like necessary for construction work. Then, the rotating arm is rotatable in the mounting horizontal direction within a rotation angle range regulated by the rotation angle regulating unit, and the length is adjusted by the slide arm. Thereby, the work table is positioned according to the rotation angle of the rotary arm and the length adjusted by the slide arm. Further, since the rotation angle range of the rotation arm is regulated by the rotation angle regulation unit, the size of the telephone pole mounting part to be changed according to the rotation angle range can be kept within a range suitable for required conditions. it can.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
FIGS. 1, 2, and 3 are a perspective view, a side view, and a plan view showing a pole working table 1 according to the present embodiment. With reference to these drawings, the configuration of each part of the workbench according to the present embodiment will be described. In FIG. 3, for convenience of explanation, the illustration of a mechanism for attaching to a utility pole in the pole working table 1 is omitted.
[0009]
Prior to attaching the pole work table 1 of the present embodiment, the utility pole attachment 3 is attached to the utility pole 2 in advance, for example, as shown in FIGS. Although the detailed illustration is omitted here, the electric pole attachment 3 is fixedly attached to the electric pole by, for example, tightening the chain 3a to the electric pole 2 with a fastener.
[0010]
In the pole work table 1 of the present embodiment, a fixing portion 44 is integrally formed at the upper end of the attachment portion 41 so as to protrude horizontally outward of the electric pole by, for example, welding. The fixing portion 44 has an engagement mechanism that engages with the utility pole attachment 3, and a state in which the fixed portion 44 is attached to the utility pole 2 by being engaged with the utility pole attachment 3. . Then, by turning and tightening the belt 3b as illustrated, the attachment portion 41 attached to the utility pole 2 is fixed so as not to come off.
[0011]
An upper support section 42 and a lower support section 43 are provided for the attachment section 41, and a reinforcing section 45 is provided between the upper support section 42 and the lower support section 43. The reinforcing portion 45 reinforces a portion composed of the upper supporting portion 42 and the lower supporting portion 43.
The upper support portion 42, the lower support portion 43, and the reinforcing portion 45 are also attached so as to be integrated with the attachment portion 41, similarly to the fixing portion 44.
The adjustment screws 46, 46 provided in a pair on the left and right below the attachment portion 41 are used for adjusting the installation angle (tilt angle) of the attachment portion 41 with respect to the utility pole 2 depending on the degree of rotation.
[0012]
The rotation bearing 47 is provided so as to connect the end portions of the upper support 42 and the lower support 43. A rotation angle regulating member 50 is provided at an upper end of the upper support portion 42.
The rotary bearing 47 is provided so as to be integrally fixed to each end of the upper support 42 and the lower support 43. The rotation angle regulating member 50 is also fixed integrally with the upper end of the upper support portion 42.
[0013]
The rotating arm 31 has a predetermined length, and is integrally formed with the arm supporting portion 32 and the reinforcing portion 32a to form one rotating arm member 60. The rotary arm member 60 is attached to a portion of the rotary bearing portion 47 on the attachment portion 41 side as illustrated. In this case, the end of the rotating arm 31 is inserted between the rotation angle regulating member 50 and the upper support 42. The end of the arm support 32 is aligned with the end of the lower support 43. Then, for example, a bolt or the like inserted through the rotary bearing portion 47 is fastened and fixed.
As a result, the rotation arm member 60 having the rotation arm 31 rotates around the rotation axis P (see FIGS. 2 and 3) passing through the rotation bearing portion 47 as indicated by an arrow C (see FIGS. 1 and 3). To be rotatably mounted.
[0014]
The rotation arm member 60 is regulated by a rotation angle regulating plate 50 integrally formed on the attachment portion 41 so that the range of the rotation angle (movable range) is within a predetermined angle. Will be described later.
[0015]
In this case, the rotating arm 31 is a square pipe having a rectangular cross section. Then, a slide arm 23 having a predetermined length is inserted into the rotary arm 31 inside the pipe as shown. In this case, a square pipe is also used for the slide arm 23. The outer size of the cross section of the slide arm 23 is slightly smaller than the cross section of the inner hollow portion of the rotary arm 31.
Therefore, the slide arm 23 is held so as to be slidable as shown by the arrow B (see FIG. 1) under the state where the slide arm 23 is inserted through the rotary arm 31.
A fixing screw 33 is attached to the end of the rotating arm 31 on the side where the slide arm 23 is inserted, from below. By tightening the fixing screw 33, the slide arm 23 is fixed to the rotating arm 31.
[0016]
The rotation bearing 21 is attached to an end of the slide arm 23 that is not inserted into the rotation arm 31.
The work table 10 can be attached to the rotation bearing 21. In a state where the work table unit 10 is attached to the rotary bearing unit 21, a state is obtained in which the work table unit 10 is supported so as to be rotatable through 360 ° as shown by an arrow A in FIG. Then, by tightening the fixing screw 22 provided to the rotary bearing portion 21, the work table portion 10 is fixed so as not to rotate freely.
[0017]
In this case, as the work table unit 10, a base unit 11 is provided first. Although not shown here, a rotation bearing portion for attaching to the rotation bearing portion 21 is formed in a lower central portion of the base portion 11.
Further, handle portions 13 are attached to a pair of side surfaces of the base portion 11, respectively. Thereby, when carrying the work table unit 10 at the time of disassembly, or when rotating the work table unit 10 in an assembled state, consideration is made so that the worker can easily work.
[0018]
As shown in the figure, a front edge 12a, left and right side edges 12b, 12b, and a rear edge 12c are provided on the upper surface of the base 11 so as to form an enclosure. A cable connection device, a work tool, a connection material, and the like are mounted on the mounting space 12d formed inside these edges.
At this time, since the enclosure is formed by the four edges (12a, 12b, 12b, 12c) as described above, the equipment, tools, materials, etc. placed with respect to the mounting space 12d are carelessly prepared. It does not fall from the work table unit 10. By making the rear edge 12c higher than the front edge 12a, the workability and the effect of preventing falling are further enhanced.
[0019]
According to the above description, the workbench 1 according to the present embodiment can be disassembled into three members.
That is, one is the work table unit 10. The other is a slide arm 23 to which the rotation bearing 21 is attached. The other is a rotating arm member 60 and a member on the attachment portion 41 side that rotatably holds the rotating arm member 60 (the upper supporting portion 42, the lower supporting portion 43, the reinforcing portion 45, and the rotation angle regulating member 50). ).
[0020]
The work of mounting the pole work table 1 formed of such members to the utility pole 2 is performed as follows.
First, the operator determines the mounting height of the pole workbench 1 with respect to the utility pole 2 and the mounting angle of the utility pole 2 in the circumferential direction from the positional relationship with the surrounding pillars and the like. Then, according to the determined height and mounting angle, first, the utility pole mounting fixture 3 is fixed to the utility pole 2 and attached.
[0021]
Then, the attachment part 41 of the utility pole attachment-side member (a member composed of the attachment part 41 side and the rotating arm member 60) is engaged with the utility pole fixture 3 attached to the utility pole 2 as described above. As a result, first, the pole-mounting side member of the pole working table 1 is attached. Further, when the attachment part 41 is engaged with the utility pole attachment 3 and attached thereto, the attachment is performed by the belt 3b. At this stage, for example, the angle adjustment of the pole work table 1 by the adjustment screws 46, 46 is performed. In order to make it easier to perform later, instead of completely tightening, tightening is performed slightly loosely so that adjustment with the adjusting screws 46, 46 can be easily performed.
[0022]
Subsequently, the slide arm 23 is inserted through the rotating arm 31. Then, after the slide arm 23 is slid and adjusted to an appropriate length, the fixing screw 33 is tightened and fixed.
Subsequently, the work table 10 is attached to the rotation bearing 21 of the slide arm 23. Thereby, the work of attaching the entire pole work table 1 to the utility pole 2 is completed.
[0023]
In performing such assembling work, a scaffold is firstly set at a position where it is easy to work, and the worker stands on this scaffold and assembles / attaches the workbench 1 as described above. Get to do the work. Then, after this, the operator performs the adjustment so that the work table unit 10 comes to a position where work is easy.
[0024]
For this purpose, for example, first, by adjusting the rotation angle in the horizontal direction by moving the rotation arm unit 60, the angle along the circumferential direction of the utility pole 2 is appropriate as the position of the work table unit 10. I do. When the appropriate position is determined, the operator tightens the handle-fixing screw 48 of the rotation angle regulating member 50 which has been loosened up to now. Thus, the rotation arm 60 is fixed in a state where the rotation angle is appropriate.
[0025]
Further, by sliding the slide arm 23, the distance (length) between the work table unit 10 and the utility pole 2 is adjusted so that the work table unit 10 is located at a position where it is easy to work. Also in this case, when the adjustment of the slide arm 23 is completed, the fixing screw 33 of the rotary arm 31 is tightened to fix the slide arm 23.
[0026]
Further, since the work table unit 10 itself also moves by 360 °, by adjusting the rotational position, for example, the front side of the work table unit 10 faces the worker standing on the scaffold. That is, the rotation position of the work table unit 10 which is considered to be the easiest for the worker to work is set. When the rotation position of the work table unit 10 is determined, the rotation position of the work table unit 10 is fixed by tightening the fixing screw 22 of the rotation bearing unit 21.
[0027]
By the way, as described above, the mounting angle of the attachment portion 41 with respect to the utility pole 2 changes depending on the degree of tightening of the adjustment screws 46, 46. This is to adjust the vertical inclination angle of the arm part composed of the rotating arm 31 and the slide arm 23 with respect to the utility pole 2, and as a result, the work table part attached to the protruding end of the arm part This means that the inclination of ten horizontal planes is adjusted.
At the stage where the pole work table 1 is mounted on the pole by the above-mentioned procedure, the arm portion of the rotary arm 31 and the slide arm 23 is almost horizontally extended. The surface of the placement space 12d is also substantially horizontal. However, it is also conceivable that some inclination may occur due to the degree of attachment or slight bending due to its own weight.
Therefore, for example, the worker adjusts the degree of tightening of the adjustment screws 46, 46 so that the surface of the mounting space 12d of the work table unit 10 is horizontal, for example, so that the work is easily performed. Then, the belt 3b is completely tightened again.
[0028]
According to such a procedure, the workbench 1 in the present embodiment can adjust the arm direction by rotating the rotating arm 31, adjust the arm length by sliding the sliding arm 23, and adjust the adjusting screws 46, 46. And the adjustment of the horizontal angle of the work table section 10 by the tightening degree of the above. By these adjustments, even if there is an obstacle such as a pole object, the work table unit 10 can be set to an appropriate position in which the worker can easily work.
[0029]
Here, the rotation angle of the rotary arm 31 in the pole work table 1 of the present embodiment configured as described above and attached to the utility pole 2 will be described. As described above, the rotation arm member 60 is rotatable about the rotation axis P (see FIG. 3) passing through the rotation bearing portion 47. In addition, the maximum range of the rotation angle is regulated by the length of the elongated hole 49 formed in the rotation angle regulating member 50.
[0030]
In the present embodiment, the rotation angle range regulated by the rotation angle regulating member 50 is set as shown in FIG. That is, the axis passing through the center Ct of the utility pole 2 and the rotation axis P of the rotary arm member 60 is set as the horizontal axis L, and the rotation angle range of the rotary arm member 60 is The angle is set to be approximately ± 45 °.
[0031]
The basis for setting the rotation arm member 60 so as to be rotatable and setting the rotation angle range will be described.
For example, as a work table attached to a telephone pole, a work platform for a scaffold serving as a scaffold for an operator is known in addition to a work table on which equipment and tools are installed. As such a work platform for scaffolds, there has been known a work platform configured such that the rotational position of a flat plate portion serving as a scaffold can be changed.
[0032]
An example of such a work platform for scaffolding is briefly shown in FIGS.
The work platform 100 for a scaffold is fixed by a fixture not shown here. In this state, a state in which the step 101 is substantially horizontal is obtained. Further, the step 101 is supported by the supporting legs 102 as shown in FIG. Then, under the state where the electric pole 2 is attached in this manner, the position of the step 101 can be changed stepwise along the circumferential direction of the electric pole.
[0033]
However, the work platform 100 for a scaffold actually serves as a scaffold for an operator, so that the area of the platform 101 needs to be considerably large, and a large installation space is required. For this reason, even if the rotation position can be changed, it may not be possible to install the device at a position where it is easy to work depending on the positional relationship with the pillar-mounted object. Further, since the weight of the worker is involved, for example, the stability is lacking. If an attempt is made to enhance the stability, for example, the attachment site to the utility pole 2 will be made more rigid, and the work platform 100 for a scaffold will be large and heavy. In this way, the scaffolding workbench 100 conventionally known cannot always be installed at a position where it is easy to work. In addition, it can be said that it is impractical because it becomes large and heavy, and still cannot maintain sufficient stability.
[0034]
Therefore, in the present embodiment, a workbench on which equipment and the like are placed, instead of a scaffold workbench, is rotatable along the circumferential direction of the utility pole 2.
The pole work table 1 of the present embodiment is a work table on which equipment and the like are mounted. As can be seen with reference to FIGS. 1 to 3, an arm unit including a rotating arm 60 and a slide arm 23 is used. Is relatively thin due to the shape of a square pipe. For this reason, it can be said that the degree of freedom of installation is higher than that of the work platform for scaffolding. In addition, since the position of the work table unit 10 can be changed by rotating the arm member 60, the positional relationship between the scaffold and the work table unit 10 can be changed according to most situations, for example. It becomes possible to make it easy to do.
[0035]
The electric poles are usually equipped with attachments, and there are various types of attachments attached to each electric pole, for example, such as a communication / broadcasting terminal board and a cable fastener. Furthermore, the attachment state of these attachments also differs depending on, for example, the use of cables installed on telephone poles.
For this reason, it is necessary to attach a scaffold or a work table used for work flexibly to different situations at each work site. However, if the pole work table 1 according to the present embodiment is used, such a work is required. It is possible to respond to various requests.
[0036]
The rotation angle range of the rotation arm member 60 is set to approximately ± 45 ° with respect to the mounting horizontal axis L for the following reason.
As can be said for all worktables mounted on the electric pole 2, a load is applied to the distal end side of the supporting horizontal shaft in a state where it is supported by the electric pole.
Then, for example, taking the pole work table 1 of the present embodiment as an example, if the arm section and the work table section 10 are present along the mounting horizontal axis L in FIG. 3, as shown in FIG. Then, the load applied to the gantry (corresponding to the arm and the work table 10) acts as a bending moment M in the downward direction.
The bending moment M is represented by M = WL, where W is the load, and L is the distance from the support position of the utility pole to the position where the load is applied, assuming that the weight of the gantry is ignored.
Then, the force of the bending moment M is held by the support leg 102.
[0037]
On the other hand, the pole work table 1 of the present embodiment is in a state in which the arm is positioned so as to be deviated from the mounting horizontal axis L by being rotated with the mounting horizontal axis L as a reference position. The state is as follows. That is, as shown in FIG. 2 and FIG. 3, a rotational moment M for rotating the arm portion with the center of the pipe section of the arm portion as the rotation axis acts. The force of the rotational moment M is applied to a portion (attachment portion 41) attached to the utility pole 2 in a direction equal to the bending angle of the arm portion.
The force of the rotational moment M applied as described above works as a force that causes the work table unit 10 to fall.
[0038]
For example, FIG. 5 schematically shows a state in which a rotation angle is given by bending an arm portion.
As shown in the figure, when an angle with respect to the electric pole is given to the arm, a line (ac) connecting the center c of the electric pole and the tip a of the arm can be considered as a virtual arm. Here, the rotational moment M is also represented by M = WL, where W is the load and L is the distance from the support position of the utility pole to the position where the load is applied.
[0039]
The theoretical support point is a point b intersecting the virtual arm (ac) and the telephone pole surface line. That is, the rotational moment M is received by the arm portion and transmitted to the attachment portion, so that the power pole 2 is released as the force Pw.
Therefore, in the case of the workbench 1 according to the present embodiment, the size of the attachment portion attached so as to be in contact with the circumferential surface of the utility pole 2 is a size in a direction corresponding to the circumferential direction of the utility pole 2 (as an arc). ) Must have a size sufficient to include the designated point b.
[0040]
Based on the mechanism of the workbench 1 and the manner in which the workbench 1 is attached to the utility pole 2 according to the present embodiment, the rotation angle of the arm is about It can be easily extended to the range of ± 90 °.
However, as described earlier with reference to FIG. 5, the size of the attachment portion 41 that comes into contact with the circumferential surface of the utility pole 2 needs to have a size that includes the support point b shown in FIG. There is.
Therefore, if the rotation angle range of the arm part is actually widened, the position of the support point b will move further outward along the circumferential surface of the utility pole 2. Then, the size (the length of the circular arc) of the attachment portion 41 must be expanded to include the support point b. Accordingly, the area of the attachment portion 41 to be contacted along the circumferential surface of the utility pole 2 becomes larger, so that the size becomes larger and the weight becomes heavier.
If the attachment part 41 is large and heavy, the power pole mounting side member composed of the attachment part 41 and the rotating arm member 60 will also be correspondingly heavy. In other words, the weight and size of the workbench 1 according to the present embodiment changes according to the movable range of the rotation angle of the arm.
[0041]
Thus, in the present embodiment, the angle range of the arm portion is determined from the actual use conditions in the field. In other words, the weight and the size of the attachment portion 41 must be set to such a level that the worker does not hinder the mounting work under the environment of the actual on-site work. In addition, the condition is that a maximum rotation angle is obtained so that an appropriate position of the work table unit 10 can be obtained almost surely in various actually assumed site situations. .
[0042]
As a result of considering the above-described conditions, in the present embodiment, the rotation angle range of the arm portion is set to about ± 45 ° with respect to the mounting horizontal axis L. In this rotation angle range, the weight and the size of the attachment portion 41 may be set by the operator even under the conditions of the actual site workers, necessary equipment, tools, etc., as described later. Was confirmed to fit in an easy weight.
In addition, it was confirmed that the work table unit 10 can be arranged at an appropriate position where the work table unit 10 can be easily worked in response to different work site conditions (such as the installation state of a pillar object) for each work site.
[0043]
For reference, FIG. 6 is a plan view showing an example of a positional relationship between the work table unit 10 and a scaffold when the pole work table 1 of the present embodiment is actually attached to a utility pole.
For example, as shown in this drawing, the cable 201 is laid so as to extend in the horizontal direction on the paper surface with respect to the utility pole 2, and a work scaffold 203 is assembled on the right side of the utility pole 2. And In this case, the area where the worker can actually work without any problem is the range of the work area 202 shown by the broken line. In other words, in this case, the area is about 1/4 of the upper right area around the utility pole. In other words, it can be said that the work that can actually be performed on the utility pole 2 is about 1/4 of the entire area around the utility pole.
Then, after adjusting the length of the arm portion by, for example, sliding the slide arm 23, the arm portion is attached here, and a maximum rotation angle of 45 ° with respect to the horizontal axis L with respect to the right direction of the paper is given. ing. Further, since the work table unit 10 can be rotated by 360 ° as shown by the arrow A, as shown in the figure, the work table unit 10 is substantially parallel to the work scaffold 203, They also make it easier to work.
Then, as a result of performing the position adjustment in this manner, the work table unit 10 can obtain a state where the work table unit 10 is within the range of the work area 202 without difficulty. In other words, from the viewpoint of easiness of work using the workbench 1, it is sufficient if the maximum rotation angle of the arm is within a range of about ± 45 ° with respect to the mounting horizontal axis L. It is shown that practical utility can be obtained.
[0044]
By setting the maximum rotation angle range of the arm portion to about ± 45 ° with respect to the mounting horizontal axis L, the weight of the attachment portion 41 excluding the rotation arm 31 could be reduced to 2.0 kg.
The arm portion including the rotating arm 31 and the slide arm 23 weighs 6.0 kg, and the work table portion 10 weighs 5.0 kg.
[0045]
The actual assembling on the pole is performed by one worker who assembles on the pole and another worker who gives the assembled parts to the worker on this pole. For this reason, considering the situation in which two people work at a high place in this way, as described above, it is preferable that the weight of each assembly part be as light as possible. It must be within about 10 kg.
In the present embodiment, the weight of each assembly part is within 10 Kg with a margin, and it can be said that there is no problem in the work of assembly and disassembly. When assembling was actually performed on the workbench 1 of the present embodiment, the assembling work could be completed in a short time of 10 minutes or less by the work of two workers as described above. .
For reference, when the rotation angle range of the arm portion is set to 45 ° or more, the weight increases by about 5.0 Kg, and the workability is significantly deteriorated. .
[0046]
Also, if the weight of each assembly component is reduced as much as possible and the number of divisions of the assembly component is increased, the weight size becomes smaller and individual assembly components become easier to handle. However, the number of man-hours for assembling and disassembling work on site increases, and conversely, the work efficiency decreases.
In the present embodiment, as can be seen from the above description, the number of assembled components is three. In addition, since the weight of each assembled component is within 10 kg, the working efficiency is not impaired.
Thus, the workbench 1 according to the present embodiment is of a size and weight with good workability.
[0047]
【The invention's effect】
As described above, the pole work table of the present invention is provided with a work table portion for mounting work equipment and the like. The work table section is configured such that the arm section rotates and expands and contracts, and the work table section is rotatably supported, so that the work table section is appropriately positioned. In addition, in the present invention, the rotation angle range of the arm portion is regulated so as to be less than required.
As a result of restricting the rotation angle range in this way, the size of the utility pole mounting portion can be kept within a range that meets the required conditions. Thereby, the work height on the pole can be reduced to a weight that does not impair the workability of the mounting. In other words, it is possible to greatly reduce the cost and time for the work for mounting and dismantling the column work table.
[0048]
In addition, the condition that the size of the telephone pole mounting portion is within the required range, and the condition that the work table portion can always be located at an appropriate position corresponding to the actual actual use environment. Are satisfied, and the rotation angle range is set.
This makes it possible to obtain good workability in both the work of mounting / disassembling the workbench on the pole and the work of erection using the workbench mounted on the pole.
Thus, the present invention makes it possible to obtain a good workability and to provide a practical workbench.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a configuration example of a workbench on a pole as an embodiment of the present invention.
FIG. 2 is a side view showing a configuration example of a workbench on a pole as an embodiment of the present invention.
FIG. 3 is a plan view showing a configuration example of a workbench on a pole as an embodiment of the present invention.
FIG. 4 is an explanatory diagram for explaining a bending moment applied to a workbench on a pole.
FIG. 5 is an explanatory diagram for explaining a rotational moment applied to a workbench on a pole.
FIG. 6 is a plan view showing the actual positional relationship between the work scaffold and the work table unit 10;
FIG. 7 is a plan view showing an example of a conventional utility pole mounting type work platform for scaffolding.
FIG. 8 is a side view showing an example of a conventional utility pole mounting type work platform for scaffolding.
[Explanation of symbols]
1 Workbench on pole, 2 pole, 3 pole fixture, 10 worktable, 23 slide arm, 31 rotating arm, 33 fixing screw, 41 attachment, 42 upper support, 43 lower support, 46, 46 adjustment Screw, 47 rotation bearing part, 48 fixing screw with handle, 49 slot, 50 rotation angle regulating member, 60 rotation arm member

Claims (4)

A utility pole mounting portion having a mounting mechanism for detachably mounting to the utility pole,
A rotating arm unit rotatably mounted in the mounting horizontal direction with respect to the telephone pole mounting unit,
A rotation angle restricting unit that restricts a rotation angle range of the rotation arm unit,
A sliding arm portion attached to the rotating arm portion so as to be slidable;
A work table section attached to the tip end side of the slide arm section so as to be rotatably supported;
A workbench on a pole, comprising: A condition that the size of the telephone pole mounting portion to be changed according to the rotation angle range falls within a required range,
The condition that the work table section can always be at an appropriate position corresponding to the assumed actual use environment is satisfied, and the rotation angle regulation section regulates the work table section. Setting the rotation angle range,
The workbench according to claim 1, wherein: The rotation angle range is
Based on the mounting horizontal axis in a state where the pole work table is mounted on the utility pole, it is set to be approximately 45 °,
The workbench according to claim 2, wherein: In the power pole mounting portion, an adjusting portion for adjusting a vertical tilt angle with respect to the power pole is provided,
The workbench according to claim 1, wherein:

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