JP2011084899A - Simple scaffold for climbing up and down column body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple scaffold allowing a worker to use simply, climb up a column body such as a power pole easily, and work there. <P>SOLUTION: This simple scaffold for climbing up and down the column body includes an abutting body to be abutted on a peripheral face of the column body, a scaffold body brought into contact with the abutting body continuously at an obtuse angle and extended to protrude from the peripheral face of the column body at an upgrade and a fastening body attached to the scaffold body slidably and connected to change degree of tightening of a connection belt wound around the peripheral face of the column body. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a simple scaffold for raising and lowering a pillar body that can be used easily when climbing up a utility pole or the like.

  Conventionally, scaffolding bolts have been planted on utility poles, but from the standpoint of preventing tampering, etc., this is at a height of 2 meters or more from the ground. A ladder that was high enough to reach was needed. Then, the ladder was moved from the ladder to the scaffold bolt so as to climb to a desired height.

  However, since the ladder is usually made of metal and can be said to be a relatively heavy object, carrying it is troublesome. Therefore, for example, when it is necessary to climb a utility pole in a place that cannot be entered by an automobile or the like, the burden on the worker is finally increased. Further, for example, the ground on which the electric poles are erected may be flat, but when standing on an inclined ground, it is difficult to stand the ladder in a stable state, which may be dangerous.

  Therefore, a rope that is hooked on a scaffolding bolt planted on the power pole and wound around the outer peripheral surface of the power pole, and a plurality of footrest members that are detachably attached to the rope and mount the foot when climbing the power pole The simple ladder which consists of was proposed (for example, refer patent document 1).

JP 2007-262835 A

  However, although the simple ladder described above can be stored more compactly than the ladder and can be reduced in weight, the rope can be attached to the scaffolding bolt that is installed about 2 meters above the power pole. Hang and turn the two on both sides of the rope to the opposite side of the utility pole, then place the footrest member on the outer circumference of the utility pole at the opposite side of the scaffolding bolt and about 50 cm below the scaffolding bolt At the same time, it has been extremely troublesome, for example, because it is necessary to successively perform the work of fitting the rope in a state of being stretched in the rope groove provided on the footrest member.

  Furthermore, since the simple ladder mentioned above is a method of hanging a rope on the scaffolding bolts planted on the utility pole, for example, when the scaffolding bolts implanted on the utility pole are missing, use the simplified ladder itself. In the first place, it cannot be used except for a utility pole in which a scaffold bolt has been previously planted at a predetermined height.

  The present invention solves the above-mentioned problems, can be climbed on a pole body such as a utility pole safely and easily, and is easy to carry and carry, and is very easy to handle and store, etc. The purpose is to provide.

  (1) The present invention relates to an abutment body that abuts on the peripheral surface of the column body, and a scaffold body that is connected to the abutment body at an obtuse angle and extends so as to protrude upward from the peripheral surface of the column body. And a fastening body that is slidably attached to the scaffold main body and is capable of variably connecting the tension of the connecting band wound around the peripheral surface of the column body. Scaffolding.

  (2) Further, in the simple scaffold for lifting and lowering a column body according to (1), the fastening body is formed on a short cylinder part loosely fitted on the scaffold main body and on one side of the short cylinder part. A first connecting part that connects one end side of the connecting band and a second connecting part that is formed on the other side of the short cylinder part and connects the other end side of the connecting band wound around the peripheral surface of the column body And a bolt body screwed into a nut body provided in the short cylinder portion so that the tip abuts against the front surface of the abutment body.

  (3) Further, in the simple scaffold for raising and lowering the column body according to (1) or (2), the present invention is such that a plurality of holes that are used for both slip prevention and drainage are formed on the upper surface of the scaffold main body. Features.

  (4) Moreover, the present invention is characterized in that in the simple scaffold for raising and lowering a pillar body according to the above (1) to (3), the connecting band is a metal chain.

  According to the present invention, a column that can be easily attached to a pole body such as a utility pole, can safely be moved up and down, is easy to carry and carry, and is extremely easy to handle and store. A simple scaffold for raising and lowering a body can be provided.

It is a top view of the simple scaffold for column body raising / lowering which concerns on this embodiment. It is the same side view. It is the bottom view. It is a whole perspective view which shows the attachment state to the pillar of the simple scaffold for raising / lowering the pillar. It is the same whole top view. It is explanatory drawing which shows the use condition of the simple scaffold for simple raising / lowering.

  Hereinafter, the simple scaffold for raising and lowering a column body according to the present embodiment will be specifically described with reference to the drawings.

  A simple scaffold 10 for raising and lowering a pillar body according to the present embodiment (hereinafter simply referred to as “simple scaffold 10” in some cases) is simply attached to a pillar body 50 and can be climbed to the pillar body 50 using this as a scaffold. It is what I did. The simple scaffold 10 according to the present embodiment is made of metal, and as shown in FIGS. 1 to 3, the scaffold main body 11, the contact body 12, the fastening body 20, and a chain 30 (hereinafter “chain 30”) as a coupling body. And the contact body 12 is connected to the base end of the scaffold body 11 so as to have a substantially L shape in side view.

  The scaffold main body 11 bends the left and right longitudinal side edges of the rectangular metal plate downward, and connects the contact body 12 that contacts the column body 50 to the base end portion thereof. The scaffold body 11 is attached so as to protrude from the peripheral surface of the column body 50 with an obtuse upward slope in a state where the contact body 12 is in contact with the peripheral surface of the column body 50 as shown in the figure. . Furthermore, the distal end portion 11a of the scaffold main body 11 protruding outward from the column body 50 is further bent upward so that the operator's foot placed on the scaffold main body 11 does not easily slide outward from the distal end portion 11a. I have to. In addition, as for the attachment angle of the scaffold main body 11 and the contact body 12, about 100-120 degree | times is desirable and is set to 110 degree | times in this embodiment.

  In addition, a plurality of holes 13 are formed in the upper surface of the scaffold body 11, that is, the contact surface with the operator's foot. This hole 13 serves both as a slip stopper and drains water, and normally functions as a slip stopper. For example, when it rains, drains rainwater and the like accumulated on the scaffold main body 11. It prevents the soles of the workers from slipping. In addition, by making the plurality of holes 13 in a state where the scaffold main body 11 has a predetermined strength, the simple scaffold 10 for lifting and lowering the column body can be reduced in weight, and portability is also improved.

  The fastening body 20 is a short cylinder portion 21 having a substantially rectangular shape in cross-sectional view that is loosely fitted to the scaffold main body 11, and a chain 30 that is formed on one side of the short cylinder portion 21 and in which a plurality of rings are connected as a connection band. A first connecting portion 22 that connects one end side of the second cylindrical portion 21, a second connecting portion 23 that is formed on the other side of the short cylinder portion 21 and connects the other end side of the chain 30 wound around the peripheral surface of the column 50, The bolt body 40 is screwed into a nut body 41 provided in the short cylinder portion 21 so that the front end is in contact with the front surface of the contact body 12. Here, the front surface of the contact body 12 is a surface that is opposite to a surface that contacts the peripheral surface of the columnar body 50 when the simple scaffold 10 is used.

  The short tube portion 21 is loosely fitted to the scaffold body 11 from the distal end portion 11a of the scaffold body 11 so as to be slidable. Further, the scaffold main body 11 is provided with a retaining means so that the short cylinder portion 21 does not fall off. In the present embodiment, a retaining screw 14 is attached to the side of the scaffold body 11 as retaining means. That is, in a state in which the retaining screw 14 is removed, the short cylinder portion 21 can be easily fitted from the distal end portion 11a of the scaffold body 11, but the short cylinder portion 21 once fitted to the scaffold body 11 is prevented from coming off. By attaching the screw 14 to the side part of the scaffold main body 11, only the space between the retaining screw 14 and the contact body 12 can be slid.

  On both the left and right sides of the short cylinder portion 21, a first connecting portion 22 and a second connecting portion 23, each having a locking recess 25, are provided in a wing shape. Further, the first connecting portion 22 formed on one side is provided with a connecting screw 24 as a means for preventing the chain 30 from coming off. After removing the connecting screw 24 and engaging and connecting one end of the chain 30 to the locking recess 25 of the first connecting portion 22, the connecting screw 24 that contacts the chain 30 is attached. 30 can move freely with respect to the first connecting portion 22 in a state of being engaged with the locking recess 25, but the movement in the pull-out direction is restricted, so that it is never detached from the first connecting portion 22. It has a configuration that never happens.

  On the other hand, the second connecting portion 23 formed on the other side of the short cylinder portion 21 allows the operator to engage or release the other end side of the chain 30 with the locking recess 25. Yes. For this reason, the worker who uses the simple scaffold 10 connects the chain 30 to the second connecting portion 23 or releases the connection at an arbitrary position on the other end side of the chain 30 wound around the peripheral surface of the column body 50. I can do it.

  A nut body 41 is fixed to the lower surface of the short tube portion 21, that is, the back surface of the surface on which the operator places his / her foot. Then, the bolt body 40 is screwed onto the nut body 41 so that the front end of the nut body 41 is in contact with the front surface of the contact body 12.

  When the bolt body 40 is rotated in the direction of tightening the nut body 41, that is, in the clockwise direction, the fastening body 20 slides in the direction of the distal end portion 11 a of the scaffold body 11, that is, in the direction away from the column body 50. Thereby, the tension degree of the chain 30 wound around the circumferential surface of the column body 50 is increased, and the scaffold main body 11 is fixed to an arbitrary position of the column body 50.

  On the other hand, when the bolt body 40 is rotated relative to the nut body 41, that is, in the counterclockwise direction, the fastening body 20 slides in the direction of the contact body 12 of the scaffold main body 11, that is, in the direction close to the column body 50. To do. Thereby, the tension degree of the chain 30 wound around the peripheral surface of the column body 50 is loosened, and the fixing of the scaffold body 11 to the column body 50 is released.

  That is, the simple scaffold 10 for raising and lowering the column body in the present embodiment is formed by winding the chain 30 having one end connected to the locking recess 25 of the first connection unit 22 around the circumferential surface of the column body 50 at an arbitrary height. The other end of the chain 30 adjusted to a predetermined length is connected to the locking recess 25 of the second connecting portion 23, and the bolt 30 is rotated to slide the short cylinder portion 21, thereby causing the chain 30 to slide. The scaffold main body 11 can be freely attached to and detached from the columnar body 50 by adjusting the degree of tension.

  That is, as long as it is within the maximum length of the chain 30 as a connection band, the column body elevating simple scaffold 10 can be attached to and detached from a plurality of types of column bodies 50 having different thicknesses.

  Here, with reference to FIGS. 4-6 further, the procedure of attachment of the simple scaffold 10 for column raising / lowering in this embodiment and the usage method of the simple scaffold 10 are demonstrated in detail. Here, as an example, the pole body 50 is used as the electric pole 60, and a plurality of simple scaffolds 10 are attached to the electric pole 60 from a base low part to a scaffold bolt 70 provided at a predetermined height (for example, 2 m). Will be described.

  As illustrated in FIG. 4, the column body lifting / lowering simple scaffold 10 according to the present embodiment has a chain 30 as a connection band in a state in which the contact body 12 is in contact with the peripheral surface 60 a of an arbitrary height of the utility pole 60. From the first connecting part 22 whose one end is fixed, the peripheral surface 60 a is wound clockwise and the other end is connected to the second connecting part 23.

  At this time, since the chain 30 is an aggregate of rings having a predetermined size, the chain 30 cannot be completely brought into close contact with the peripheral surface 60a of the utility pole 60. Therefore, it is desired that the operator adjusts the position of the other end side of the chain 30 and connects it to the second connecting portion 23 so that the slack of the chain 30 is reduced as much as possible.

  In this state, the bolt body 40 provided at the lower portion of the short cylinder portion 21 is tightened with a tool such as a spanner or a spectacle wrench until the tension of the chain 30 is maximized. That is, the bolt body 40 is rotated clockwise, and the simple scaffold 10 is attached in a state where the chain 30 is tightly tensioned with respect to the utility pole 60 as shown in FIG.

  Accordingly, the chain 30 is in close contact with the peripheral surface 60 a of the utility pole 60, the abutment body 12 of the simple scaffold 10 is in close contact with the peripheral surface 60 a of the utility pole 60, and the simple scaffold 10 is fixed to the electrical pole 60. In this state, when the worker puts weight on the scaffold main body 11 of the simple scaffold 10, a moment due to the weight load of the worker is transmitted from the scaffold main body 11 to the contact body 12, and the contact body 12 and the utility pole 60 are Since the degree of adhesion with the peripheral surface 60a is amplified, the simple scaffold 10 is not displaced from the peripheral surface 60a of the utility pole 60 or dropped off.

  In addition, since the scaffold body 11 protrudes from the peripheral surface of the utility pole 60 with an obtuse upslope, the scaffold body 11 does not enter a downward slope state at least as compared with the horizontal state even if an operator puts his or her foot on it. Workers can rest in peace.

  And the attachment procedure mentioned above is repeated in the upper position of the attached simple scaffold 10, and the required number of simple scaffolds 10 are fixed as a new scaffold. That is, the additional simple scaffold 10 is attached to a position at a predetermined height (for example, 50 cm) above the attached simple scaffold 10 and opposite to the center of the utility pole 60.

  In this way, a plurality of simple scaffolds 10 can be attached to the utility pole 60 between the base low part and the scaffold bolt 70 provided at a predetermined height (for example, 2 m), as shown in FIG. In addition, the operator can easily raise and lower the utility pole 60 by using the plurality of simple scaffolds 10 attached to the portion of the utility pole 60 where the scaffold bolt 70 is not erected.

  In addition, when the work is completed, the bolt body 40 provided on the lower surface of the short cylinder portion 21 is replaced with a spanner or a spectacle wrench in order from the simple scaffold 10 fixed to the upper part, contrary to the above-described procedure. The simple scaffold 10 can be easily removed by releasing the connection between the chain 30 and the second connecting portion 23 by releasing the connection between the chain 30 and the second connecting portion 23 by loosening the tension of the chain 30 by rotating in the direction of loosening, that is, counterclockwise with a tool. Can do.

  And if the removed simple scaffold 10 is stored together as a whole, it is easy to carry and store.

  In the description using FIGS. 4 to 6 described above, the simple scaffold 10 has been described as an example in which the scaffold bolt 70 of the utility pole 60 is not erected, but the simple scaffold 10 is installed. This is not limited to the electric pole 60, and can be applied to the pole body 50 as described above. That is, if it is the pillar body 50 which an operator needs to raise and lower and work, the simple scaffold 10 which concerns on this embodiment can also be used for a traffic signal, a road sign, a streetlight etc., for example. Moreover, the column shape is not necessarily limited to a cylinder, and may be a column having an irregular shape in cross section.

  In the present embodiment, the chain 30 is used as the connecting band. However, the present invention is not limited to this, and any metal or rubber can be used as long as the simple scaffold 10 can be fixed to the column. Resin ropes, bands, etc. may be used.

  In addition, although the one set bolt body 40 and nut body 41 in this embodiment were made into the general structure, the improvement of further safety | security is improved using the bolt body 40 and nut body 41 provided with the return prevention function, for example. Can also be planned.

  From the embodiment described above, the following simple scaffolding 10 for lifting and lowering the column body can be realized.

  An abutment body 12 to be brought into contact with the peripheral surface of the column body 50, a scaffold body 11 connected to the abutment body 12 at an obtuse angle and extending so as to protrude from the peripheral surface of the column body 50 with an upward slope; A simple scaffold for lifting and lowering a column body, comprising: a fastening body 20 slidably attached to the scaffold main body 11 and capable of variably connecting a tension degree of a chain 30 as a connection band wound around the circumferential surface of the column body 50 10.

  By using the simple column lifting / lowering scaffold 10 having such a configuration, when the user puts weight on the scaffold main body 11, the contact body 12 comes into close contact with the peripheral surface of the column 50, and the column lifting / lowering simple scaffold 10. Can be prevented from falling off during use. In addition, the column body 50 can be attached to and detached from the column body 50 by simply changing the degree of tension of the chain 30 as a connecting band wound around the peripheral surface of the column body 50. The workability of attaching / detaching the simple lifting / lowering scaffold 10 is good.

  Moreover, the fastening body 20 is formed in the short cylinder part 21 loosely fitted by the scaffold main body 11, and the 1st connection part 22 which is formed in the one side of this short cylinder part 21, and connects the one end side of the chain 30 as a connection belt. And a second connecting portion 23 that is formed on the other side of the short cylinder portion 21 and connects the other end side of the chain 30 wound around the peripheral surface of the column body 50, and the tip abuts against the back surface of the abutting body 12. Thus, the simple scaffold 10 for raising and lowering the column body comprising the bolt body 40 screwed into the nut body 41 provided in the short cylinder portion 21.

  With this configuration, the column body lifting / lowering simple scaffold 10 can be attached to and detached from the column body 50 simply by rotating the bolt body 40 in an arbitrary direction, so that the column body lifting / lowering simple scaffold 10 can be easily attached and detached. In addition, a tool for that purpose may be a minimum tool such as a spanner or a spectacle wrench that meets the specifications of the bolt body 40. In particular, when working at a high place with a utility pole or the like, a useless tool is not carried.

  Moreover, the simple scaffolding 10 for raising / lowering the column body which formed the some hole 13 which uses both an antiskid and draining on the upper surface of the scaffold main body 11. FIG.

  With this configuration, for example, it is possible to prevent the user from sliding his / her foot even during work in rainy weather, and the safe scaffold 10 for lifting and lowering the column body can be obtained.

  Moreover, the simple scaffold 10 for raising / lowering the column body which used the chain 30 as a connection belt as a metal chain.

  With such a configuration, by using an inexpensive and highly durable metallic (for example, galvanized iron) chain as the connecting band, the column scaffolding simple scaffold 10 for lifting and lowering the cost can be obtained.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made within the scope of the gist of the present invention described in the claims. It can be changed.

DESCRIPTION OF SYMBOLS 10 Simple scaffold for raising / lowering a column body 11 Scaffolding body 11a Tip part 12 Contact body 13 Hole 14 Retaining screw 20 Fastening body 21 Short cylinder part 22 1st connection part 23 2nd connection part 24 Connection screw 30 Chain 40 Bolt body 41 Nut Body 50 Column

Claims (4)

An abutting body that abuts on the circumferential surface of the column body;
A scaffold main body connected to the contact body at an obtuse angle and extending so as to protrude from the peripheral surface of the column body with an upward slope;
A fastening body that is slidably attached to the scaffold main body and that can variably connect a tension degree of a connection band wound around the peripheral surface of the column body,
A simple scaffold for lifting and lowering a column body. The fastening body is
A short tube portion loosely fitted to the scaffold body;
A first connecting part formed on one side of the short cylinder part and connecting one end side of the connecting band;
A second connecting portion that is formed on the other side of the short cylindrical portion and connects the other end side of the connecting band wound around the peripheral surface of the column;
A bolt body screwed into a nut body provided in the short cylindrical portion so that the tip abuts on the front surface of the abutting body;
The simple scaffold for raising and lowering a pillar body according to claim 1.   The simple scaffold for lifting and lowering a pillar body according to claim 1 or 2, wherein a plurality of holes that serve both as slip stoppers and drains are formed on the upper surface of the scaffold body.   The simple scaffold for lifting and lowering a column body according to any one of claims 1 to 3, wherein the connection band is a metal chain.

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