JP3212604U - Stepladder fixing - Google Patents

Abstract

There is provided a stepladder fixing device that improves the certainty of preventing a fall during work on a stepladder and improves the ease of fixing and releasing the stepladder. A support rod, a stepladder fixing portion disposed on one end side of the support rod, a columnar body fixing portion disposed on the other end side of the support rod, and a columnar body fixing portion. Belt connecting portion 4. [Selection] Figure 1

Description

  The present invention relates to a stepladder fixing tool that prevents a stepladder from overturning.

  When working on high places such as utility poles and trees, you may work on a standing stepladder, but to prevent the stepladder from tipping over in places where the scaffolding is bad, connect the legs of the stepladder and the utility pole or trees with a rope etc. The stepladders are fixed and prevented from falling by being tied tightly so that they are connected and so that the stepladders do not rattle.

  However, in the case of the fixing method as described above, it is necessary to unfasten the tied rope every time the work place is moved, and to reconnect it after the movement, which is very troublesome and because of the structure of the stepladder, Since there is a gap between the legs and the utility poles, trees, etc., there is a problem that it is difficult to fix by connecting with a rope or the like, and it is impossible to make a complete fixed state.

  At present, it is desired to improve the certainty of preventing fall during work on a stepladder and to improve the ease of fixing and releasing the stepladder.

  In addition, since there is no prior art document related to the present invention that the applicant knows at the time of filing the utility model registration, there is no prior art document information to be disclosed.

  In order to solve such problems, the present invention employs the following technical means.

A stepladder fixing tool for fixing a stepladder to a columnar body,
A support rod, a stepladder fixing portion disposed on one end side of the support rod, a columnar body fixing portion disposed on the other end side of the support rod, and a belt connecting portion disposed on the columnar body fixing portion. It is the fixing tool for stepladder characterized by having.

The support rod is provided with a guide elongated hole opened with the axial direction of the support rod as a longitudinal direction and the radial direction as an axis,
The stepladder fixing part is a slide cylinder part slidably fitted to the support bar along the axial direction of the support bar;
2 projecting from the edge of the slide cylinder portion on the columnar body fixing portion side so as to face each other in parallel with the axial direction of the support rod and securing an inner width equal to or larger than the diameter of the support rod. A sheet of guide support plate;
A guide through hole opened coaxially with the guide long hole in the two guide support plates;
A guide support rod that is rotatably passed from one of the guide through holes to the other guide through hole through the guide elongated hole;
A nut screwed to one end of the guide support rod protruding from one of the guide through holes;
A rotation operation lever continuously provided on the other end side of the guide support rod protruding from the other of the guide through holes, and an inner width equal to or greater than the width of the leg portion of the stepladder to secure a side surface of the slide cylinder portion Two support plates projecting along the radial direction of the slide cylinder portion so as to face each other,
A through hole formed coaxially in the two support plates;
A fixing tool for a stepladder comprising a retaining rod that is removably inserted through the through hole.

  An end portion of the guide long hole on the slide tube portion side is set at a position where the support rod is extracted from the slide tube portion when the guide support rod contacts the end portion. This is a stepladder fixing tool.

It is a perspective view which shows an example of use of the fixing tool for stepladder of embodiment which concerns on this invention. It is a perspective view of the fixing tool for stepladder. It is a top view of FIG. It is a side view of FIG. 1, and shows the state which made the stepladder fixing | fixed part slide to the utility pole side. It is a side view which shows the state which rotated the support rod and was made parallel to the leg part.

  Hereinafter, a stepladder fixing device A according to an embodiment of the present invention will be described with reference to FIGS. In addition, each embodiment described below does not limit the present invention.

  As shown in FIGS. 1 to 3, the stepladder fixing tool A is for fixing the stepladder C to the electric pole (columnar body) B, and includes a support rod 1 and a stepladder C side (one end side) of the support rod 1. ), A columnar body fixing portion 3 disposed on the power pole B side (the other end side) of the support rod 1, and a belt connecting portion 4 disposed on the columnar body fixing portion 3. doing.

  1, 3 and 4, the stepladder fixing device A fixes the stepladder fixing portion 2 to the leg portion C1 of the stepladder C while the columnar body fixing portion 3 is in contact with the utility pole B. Thus, by winding the belt D connected to the belt connecting portion 4 and holding the wound belt D by the buckle D1, the stepladder C can be fixed and the fall can be prevented.

  The constituent elements of the fixing tool A for stepladder will be described in detail. The support rod 1 is a round pipe, and the guide elongated hole is opened with the axial direction of the support rod 1 as the longitudinal direction and the radial direction as the axis. 10 is provided.

  Further, a stepladder fixing portion 2 is fitted to the support rod 1 so as to be slidable in the axial direction, and a columnar body fixing portion 3 is pivotally supported at an end portion of the support rod 1 on the electric pole B side.

  The stepladder fixing portion 2 includes a slide cylinder portion 20 that is slidably fitted along the axial direction of the support rod 1 with respect to the support rod 1, a diameter of the support rod 1 parallel to the axial direction of the support rod 1. Two guide support plates 21 projecting from the edge 20a on the columnar body fixing portion 3 side of the slide cylinder portion 20 and the two guide support plates 21 so as to face each other with an inner width equivalent to A guide through hole 22 that is opened coaxially with the guide long hole 10, a guide support rod 23 that is rotatably passed from one of the guide through holes 22 through the guide long hole 10 to the other guide through hole 22, and a guide A nut 24 screwed into one end side of a guide support rod 23 protruding from one side of the through hole 22 and a rotation operation lever 25 connected to the other end side of the guide support rod 23 protruding from the other side of the guide through hole 22. And an inner width equal to the width of the leg portion C1 of the stepladder C, The two support plates 26 projecting along the radial direction of the slide cylinder portion 20 so as to face each other, the through holes 27 opened coaxially to the two support plates 26, and the through holes 27 And a retaining rod 28 that is removably inserted therethrough.

  The slide cylinder portion 20 is a cylinder body that has at least an inner diameter that can be smoothly slid with respect to the support rod 1 and can be inserted into and removed from the support rod 1.

  The guide support plate 21 sandwiches the support rod 1 in a state where the slide cylinder portion 20 is fitted to the support rod 1, and the guide through hole 22 and the guide long hole 10 are arranged on the coaxial line. The guide support rod 23 penetrated through the guide through hole 22 and the guide long hole 10 aligned on the line prevents the slide cylinder portion 20 from rotating around the axis of the support rod 1, while the axis of the support rod 1. A slide in the direction is guided.

  The guide support rod 23 rotates in the direction of tightening and loosening the nut 24 by the rotation operation of the rotation operation lever 25.

  When the guide support rod 23 rotates in the tightening direction, a force acts in a direction to bring the two guide support plates 21 closer to each other, the contact pressure of the guide support plate 21 with respect to the support rod 1 increases, and the slide of the slide cylinder portion 20 moves. When it is prevented and rotated in the loosening direction, the contact pressure of the guide support plate 21 with respect to the support rod 1 is weakened, and the slide cylinder portion 20 is slidable.

  That is, by sliding the slide cylinder portion 20, the stepladder fixing portion 2 can be moved closer to and away from the columnar body fixing portion 3 as shown in FIGS. The position of C can be arbitrarily adjusted within the slidable range of the slide cylinder portion 20.

  Further, when the slide cylinder part 20 is at the slide limit position in the direction away from the columnar body fixing part 3, the support cylinder 1 is extracted by extracting the slide cylinder part 20 as shown in FIG. The support rod 1 can be rotated about the axis of the guide support rod 23, and this rotation allows the support rod 1 to be in a stored state along the longitudinal direction of the leg portion C <b> 1.

  The slide limit position of the slide cylinder portion 20 is defined at a position where the guide support rod 23 contacts the end portion 10a of the guide long hole 10 on the slide cylinder portion 20 side. That is, the position of the end portion 10 a is set to a position where the support rod 1 is extracted from the slide cylinder portion 20 when the guide support rod 23 contacts the end portion 10 a.

  The support plate 26 faces the leg C1 so that the stepladder fixing part 2 is secured against the leg C1 by screwing and tightening a nut 28a to the through-hole retaining rod 28. The stepladder fixing part 2 can be removed from the leg part C1 by loosening and removing the nut 28a.

  The retaining rod 28 is a bolt, and closes the opening portion 26a between the support plates 26 when penetrating the through hole 27, and removes and removes the nut 28a to open the opening portion 26a. .

In FIG. 3, the columnar body fixing portion 3 is formed in a planar concave shape having a contact surface 30 at the tip, and is supported by a support shaft having an axis perpendicular to the axis of the support rod 1 with respect to the support rod 1. It is supported.

  The contact surface 30 is formed to bend so as to expand the front end side of the planar concave shape along the peripheral surface of the utility pole B, and is in contact with the peripheral surface of the utility pole B.

  The belt connecting portion 4 is a hole opened in the side wall 31 of the columnar body fixing portion 3. The belt D is fixed to the columnar body by being tightly wound around the electric pole B through the belt D through the hole and stopped by the buckle D1. The part 3 can be fixed to the utility pole B.

  According to the stepladder fixing tool A having the above configuration, the stepladder fixing part 2 is fixed to the support rod 1 and the columnar body fixing part 3 is fixed to the utility pole B, whereby the stepladder C is supported to the utility pole B. The fixing of the stepladder C during work can be prevented by this fixing.

  Further, the stepladder fixing tool A can adjust the position of the stepladder C by sliding the stepladder fixing portion 2 attached to the stepladder C together with the stepladder C even when the stepladder C is fixed.

  Further, since the fixing tool A for the stepladder can be folded so that the support rod 1 extends along the longitudinal direction of the leg part C, even when the stepladder C is stored or moved, or when the fixing tool A for stepladder A is not used. The stepladder fixing tool A can be attached to the stepladder C.

  Therefore, the stepladder fixing tool A does not support the stepladder C, and improves the reliability of the fall prevention during the work on the stepladder C and the ease of fixing and releasing the stepladder C. it can.

  The fixing tool A for stepladder of the present invention is not limited to the structure in which the stepladder fixing part 2 is slid with respect to the support rod 1 but also includes a structure in which the stepladder fixing part 2 is fixed to the support rod 1 (not shown). )

A: Fixing tool for stepladder B: Electric pole C: Stepladder C1: Leg part D: Belt 1: Support rod 2: Stepladder fixing part 3: Columnar body fixing part 4: Belt connecting part 10: Guide long hole 10a: End part 20: Slide cylinder portion 20a: edge 21: guide support plate 22: guide through hole 23: guide support rod 24: nut 25: rotation operation lever 26: support plate 27: through hole 28: retaining rod

Claims (3)

A stepladder fixing tool for fixing a stepladder to a columnar body,
A support rod, and a stepladder fixing portion disposed on one end side of the support rod;
A columnar body fixing portion disposed on the other end of the support rod;
A fixing device for a stepladder, comprising: a belt connecting portion disposed on the columnar body fixing portion. The support rod is provided with a guide elongated hole opened with the axial direction of the support rod as a longitudinal direction and the radial direction as an axis,
The stepladder fixing part is a slide cylinder part slidably fitted to the support bar along the axial direction of the support bar;
2 projecting from the edge of the slide cylinder portion on the columnar body fixing portion side so as to face each other in parallel with the axial direction of the support rod and securing an inner width equal to or larger than the diameter of the support rod. A sheet of guide support plate;
A guide through hole opened coaxially with the guide long hole in the two guide support plates;
A guide support rod that is rotatably passed from one of the guide through holes to the other guide through hole through the guide elongated hole;
A nut screwed to one end of the guide support rod protruding from one of the guide through holes;
A rotation operation lever continuously provided on the other end side of the guide support rod protruding from the other of the guide through holes, and an inner width equal to or greater than the width of the leg portion of the stepladder to secure a side surface of the slide cylinder portion Two support plates projecting along the radial direction of the slide cylinder portion so as to face each other,
A through hole formed coaxially in the two support plates;
The stepladder fixing tool according to claim 1, further comprising a retaining rod that is removably inserted through the through hole. An end portion of the guide long hole on the slide tube portion side is set at a position where the support rod is extracted from the slide tube portion when the guide support rod contacts the end portion. The stepladder fixing tool according to claim 2.

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