JPH0728208U - Turnbuckle tool - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to operate the turnbuckle at high altitude by standing on the ground without using a stepladder or scaffolding. [Configuration] External gear 2 and pressing members 3, 3 on mounting plates 1, 1
And the long chain 4 is engaged with the external gear 2 between the pressing members 3 and 3. The upper end of the long handle 5 is fixed to the mounting plates 1 and 1. A hole 22 for fitting a turnbuckle into the external gear 2 and a recess 24 are provided, and guide holes 12, 12 are provided in the mounting plate. Recess 24 and guide hole 1
When the chain 4 is pulled in a state in which the turnbuckle is fitted in the holes 22 by using the Nos. 2 and 12, the external gear 2 rotates together with the turnbuckle in a direction commensurate with the pulling direction of the chain 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a turnbuckle tool, and more particularly to a turnbuckle tool suitable for tightening and loosening turnbuckles located at high places without stepping on a stepladder or scaffolding.

[0002]

[Prior art]

 In a steel structure building, in the rebuilding work to correct the squareness and strength of the steel frame, the length of the brace hung on the frame is tightened with a turnbuckle to shrink or loosen the turnbuckle. It has been postponed. In this reconstructing work, when adjusting the length of the brace placed at a high place such as the ceiling part of the first floor or the second floor, conventionally, an operator rides on a stepladder or scaffolding I used to tighten and loosen the turnbuckle using a handle with a length of about 30 cm, which is equipped with various tools.

[0003]

[Problems to be solved by the device]

 However, working on a stepladder not only requires a great deal of labor to climb and descend the stepladder and move the stepladder, but also the work efficiency is poor, and there is also the risk of stepping off. In addition, there was no choice but to use a stepladder in a place where the soil was not leveled or solidified, and in such a case, there was a risk that the stepladder would shake or the legs of the stepladder would sink into the ground. On the other hand, when adjusting the braces on the second floor, it is common to work on the scaffold, but when using the scaffold, temporary materials for assembling the scaffold, bringing in, and the amount of work required for that are increased.

The present invention has been made in view of the above circumstances, and proposes a turnbuckle tool that allows an operator to operate a turnbuckle at a high place while standing on the ground. The purpose is to eliminate the decrease in workability and risk caused by using a stepladder, and the increase in work amount due to the use of scaffolding.

[0005]

[Means for Solving the Problems]

 The tool for a turnbuckle according to claim 1 is provided with a mounting plate, an external gear rotatably mounted on the mounting plate, a center of rotation of the external gear, and an engagement with the turnbuckle in its rotational direction. Hole for holding the turnbuckle, a recess formed in the external gear to be connected to the hole for holding the turnbuckle and open at the outer peripheral portion of the external gear, and a handle attached to the mounting plate. And a chain that engages with the external gear at a part in the circumferential direction, and a holding member that is attached to a mounting plate and that keeps the chain at a position where it meshes with the external gear.

According to a second aspect of the present invention, there is provided a turnbuckle tool according to the first aspect, wherein the recessed portion has a width that can be fitted to a wire connected to the turnbuckle but is fitted to the turnbuckle. The size of the guide gear is set to be incompatible, and a guide piece for expanding outward is provided at the hole edge of the turnbuckle hole of the external gear.

[0007]

[Action]

 According to this invention, the recessed portion formed in the external gear serves to fit the turnbuckle into the turnbuckle holding hole of the external gear. Then, when the chain held by the pressing member in the meshing position with the external gear is pulled, the external gear rotates in a direction corresponding to the pulling direction of the chain. Therefore, if the turnbuckle is fitted in the hole for holding the turnbuckle of the external gear, pulling the chain in the specified direction and rotating the external gear rotates the turnbuckle in the tightening or loosening direction. To do. A handle is provided on the mounting plate to which the external gear and the pressing member are attached.By using this handle, it is possible to operate the turnbuckle from low places such as the ground to high places. Like

[0008]

【Example】

 1 is a schematic perspective view showing a part of a main part of a turnbuckle tool A according to an embodiment of the present invention, FIG. 2 is a schematic front view showing the internal structure of the main part, and FIG. It is sectional drawing which follows the III-III line.

Reference numerals 1 and 1 denote a pair of mounting plates that are arranged to face each other with a predetermined space therebetween. In the space between the mounting plates 1, one external gear 2 and two presser rollers 3 are provided. 3 and 3 are rotatably arranged respectively. That is, a circular opening 15 is formed in the mounting plates 1 and 1, and the ring portions 11 and 11 are provided at the edges of the opening 15, and the ring portions 11 and 11 have external gears. A circular ring-shaped convex portion 21 provided at 2 is fitted in the sliding rotation. Further, the mounting plates 1 and 1 are formed with guide holes 12 and 12 which are cut in a concave shape from the upper edge thereof, and the guide holes 12 and 12 are the upper edge of the mounting plates 1 and 1. It spreads out in the vicinity of. A turnbuckle holding hole portion 22 is opened at the rotation center position of the external gear 2. The hole 22 is formed in a shape similar to the outer peripheral shape of the turnbuckle (not shown), and engages the turnbuckle in its rotation direction but does not engage in the axial direction. ing. Then, a pair of guide pieces 23 having an outward expansion as shown in FIG. 3 is attached to the hole edge of the hole 22. Further, the external gear 2 is provided with a recessed portion 24 that is connected to the hole 22 for holding the turnbuckle and is formed so as to open at the outer peripheral portion of the external gear 2. The width of the recessed portion 24 is substantially the same as the width of the guide holes 12, 12 of the mounting plates 1, 1 and, moreover, it can be fitted to the wire rod (eg, brace) connected to the turnbuckle. The turnbuckle is dimensioned so that it cannot be fitted.

The pair of pressing members 3, 3 are symmetrically arranged by being laterally distributed at the lower position of the external gear 2, and their supporting shafts 31, 31 are attached to the pair of mounting plates 1, 1. The pressing member 3 may be made of plastic.

A long chain 4 is wound around the pair of pressing members 3 and 3, and the chain 4 meshes with the external gear 2 between the pair of pressing members 3 and 3. That is, the chain 4 is kept in the meshing position with the external gear 2 by the pair of pressing members 3 and 3.

Reference numeral 5 denotes a long handle made of a lightweight material such as aluminum, and one end of the handle is fixed to the mounting plates 1 and 1. The chain 4 is in an endless state having a length that can reach the other end of the handle 5 (see FIGS. 4 to 6).

In the above-described turnbuckle tool A, when the chain 4 is pulled in the direction of the arrow L in FIG. 2, the external gear 2 meshing with the chain 4 is in the direction matching the pulling direction of the chain 4, that is, the arrow. Rotate in the L'direction (counterclockwise). On the contrary, when the chain 4 is pulled in the arrow R direction in FIG. 2, the external gear 2 rotates in the direction corresponding to the pulling direction of the chain 4, that is, in the arrow R'direction (clockwise direction). Therefore, if the turnbuckle holding hole 22 of the external gear 2 is fitted with the turnbuckle, by pulling the chain 4 in the direction of the arrow L or R ', the external gear 2 is rotated. , Turn the buckle in the tightening or loosening direction.

Next, with reference to FIGS. 4 to 6, the work of tightening and loosening the turnbuckle of the braces in the rebuilding work of the building will be described.

FIG. 4 shows a state in which an operator (not shown) standing on the ground holds the lower end of the handle 5 by hand to guide the guide holes 12, 12 of the mounting plates 1, 1 to the brace 7 at a high place. Is shown. From this state, the handle 5 is lifted as indicated by arrow B, and the brace 7 is fitted into the turnbuckle holding hole 22 through the guide holes 12, 12 as shown in FIG. At this time, the external gear 2 is rotated by a predetermined angle if necessary, so that the guide holes 12, 12 of the mounting plates 1, 1 and the recess 24 of the external gear 2 are aligned with each other. Thereafter, the handle 5 is moved as indicated by arrow C in FIG. 5, and the turnbuckle 8 is fitted into the turnbuckle holding hole 22 as shown in FIG. At this time, the rotational position of the hole 22 is determined so that the turnbuckle 8 fits into the hole 22 by rotating the external gear 2 by a predetermined angle as necessary. When the turnbuckle 8 is fitted into the hole 22, the guide pieces 23, 23 serve to guide the turnbuckle 8 into the hole 22. After the turnbuckle 8 is fitted into the hole 22, pulling the chain 4 in a predetermined direction as described in FIG. 2 causes the external gear 2 to rotate in a direction matching the pulling direction, so that the turnbuckle 8 is rotated. The turnbuckle 8 is rotated together with the external gear 8 to rotate in the tightening direction or the loosening direction. An operator standing on the ground holds the lower end of the chain 4 by hand when pulling the chain 4.

As shown in FIGS. 4 to 6, when the roller 9 is attached to the lower end of the handle 5 and the lower end of the chain 4 is wound around the roller 9, the chain 4 hangs down and swings. Since it does not occur, the operability of the chain 4 is improved and the danger is eliminated.

In this embodiment, the pressing member for keeping the chain 4 in the meshing position with the external gear 2 is formed by the pressing rollers 3 and 3. However, the pressing member is provided on the outer periphery of the external gear 2. It is also possible to use a plate-like member that is bent so as to follow. It is also possible to interpose a bearing between the ring portion 11 and the annular convex portion 21 of the external gear 2, and in this case, the chain 4 can be pulled with a small force to rotate the external gear 2. Will be able to

[0018]

[Effect of device]

 According to the turnbuckle tool of the present invention, since the turnbuckle can be operated from a remote position, an operator can, for example, stand on the ground and tighten or loosen the turnbuckle at a high place. . For this reason, it is not necessary to use stepladders or scaffolds in the work of rebuilding the building as explained at the beginning, which not only has the effect of improving workability and safety, but also prevents the construction of other buildings on the ground. Even if there are lumber, they are less likely to interfere with the work.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a part of a main part of a turnbuckle tool according to an embodiment of the present invention.

FIG. 2 is a schematic front view showing an internal structure of a main part of the turnbuckle tool.

FIG. 3 is a sectional view taken along the line III-III in FIG.

FIG. 4 is an explanatory view showing a usage state of the turnbuckle tool.

FIG. 5 is an explanatory view showing a usage state of the turnbuckle tool.

FIG. 6 is an explanatory view showing a usage state of the turnbuckle tool.

[Explanation of symbols]

 A Tool for turnbuckle 1 Mounting plate 2 External tooth gear 3 Holding member 4 Chain 5 Handle 8 Turnbuckle 22 Turnbuckle holding hole 23 Guide piece 24 Recessed notch

Claims (2)

[Scope of utility model registration request] 1. A mounting plate, an externally toothed gear rotatably mounted on the mounting plate, and a turnbuckle holding hole which is opened at a rotation center position of the externally toothed gear and engages with a turnbuckle in its rotational direction. A concave cutout formed in the external gear to be connected to the turnbuckle holding hole and open at the outer peripheral portion of the external gear, a handle attached to the mounting plate, and a circumferential direction of the external gear. A tool for a turnbuckle, comprising: a chain that engages with a part of a chain; and a holding member that is attached to a mounting plate to keep the chain in a meshing position with an external gear. 2. The recessed notch has a width such that the wire can be fitted to the wire connected to the turnbuckle but cannot be fitted to the turnbuckle, and the turnbuckle of the external gear is formed. The turnbuckle tool according to claim 1, wherein a guide piece for expanding outward is provided at a hole edge portion of the use hole portion.