JP7408173B2 - Protection net installation aid - Google Patents

Description

The present invention relates to a curing net installation aid that assists when a curing net placed outside a scaffold for construction work is attached to the scaffold using a fixture.

A curing net is attached to the outside of a scaffold for construction work, and the following attachments are proposed in the patent documents mentioned below so that the curing net can be easily attached to the scaffold.

FIG. 9 is a perspective view showing how the fixture disclosed in Patent Document 1, which will be described later, is used, and in the figure, N indicates a curing net. Moreover, FIG. 9(a) shows the upper end side of the curing net, and FIG. 9(b) shows the lower end side of the curing net.

As shown in FIG. 9, the curing net N is arranged on the outside of the scaffolding, and the first support 101, which is erected at a position further away from the building, has a plurality of supports for attaching the curing net N to the scaffold. (Two in FIG. 9) fittings 50, 50 are removably fitted and fixed on the outside. The fixture 50 is attached to one end of an angle-shaped main body 51 whose inner side is formed into an arc shape, and which is also formed into an arc shape on the inside, and is used to hold the first support 101 between it and the main body 51. One end of the piece 52 is connected by a hinge so that it can be opened and closed.

One end of a tightening bolt 53 for tightening the clamping piece 52 is connected to the other end of the main body 51 so as to be rotatable around an axis parallel to the support axis of the clamping piece 52. A U-shaped recess 52a into which the tightening bolt 53 is fitted is provided at the end. Then, the clamping piece 52 is opened to fit the main body 51 onto the first support 101, and in this state, the clamping piece 52 is closed to allow the clamping piece 52 and the main body 51 to clamp the first support 101, and the tightening bolt 53 By fitting the other end into the recess 52a of the clamping piece 52 and tightening the nut 55 screwed onto the portion of the tightening bolt 53 protruding from the recess 52a, the fixture 50 can be adjusted to an appropriate height of the first support 101. Fixed in position.

Two L-shaped locking arms 56, 56 protruding from the outer surface of the main body 51 of the fixture 50 are provided to lock the curing net N. The eyelet M is inserted into the locking arm 56, and the curing net N is locked to the locking arm 56.

To attach the curing net N to a scaffold using such a fixture 50, as shown in FIG. , 56 are fixed in a position with their ends facing downward, and as shown in FIG. , 56 with their tips facing upwards. At this time, the upper fixture 50 of the first support column 101 is temporarily fixed at a position slightly lower than the required height position.

Next, as shown in FIG. 9(b), the eyelet M provided at the lower edge of the curing net N was locked to the locking arm 56 of the fixture 50 fixed to the lower side of the first support 101. After that, as shown in FIG. 9(a), the eyelet M provided on the upper edge of the curing net N is locked to the locking arm 56 of the fixture 50 fixed to the upper side of the first support column 101. At this time, since the upper attachment 50 of the first support 101 is temporarily fixed at a position slightly lower than the required height, the eyelet M of the curing net N is attached to the locking arm 56 of the attachment 50. , can be easily locked.

Then, after moving the fixture 50 on the upper side of the first support 101 to a required height position by hitting it with a hammer or the like, the fixture 50 is moved to the upper position by tightening the nut 55. A curing net N is fixed to one support column 101 and stretched between upper and lower fixtures 50, 50.

Utility Model Publication No. 4-73168

However, in order to move the temporarily fixed fixture 50 to the required height position, the fixture 50 has to be struck up with a hammer or the like, which requires a great deal of effort to move and also increases the required height. It was also difficult to move the device accurately to the desired position. Furthermore, the life of the fixture 50 is short because the fixture 50 is deformed or damaged during movement of the fixture 50 using a hammer or the like.

The present invention has been made in view of the above circumstances, and it is possible to easily and accurately move the height position of a temporarily fixed fixture, and also to relatively extend the life of the fixture. We provide a curing net installation aid that can be used.

(1) The curing net installation aid according to the present invention has a fabric material between a first pillar installed in a position away from a building and a second pillar installed in a position closer to the building. On the scaffold that has been erected, the fixture is temporarily fixed at a height below the cloth material of the first support, and the mounting device to which the upper edge of the curing net is locked is placed above the temporarily fixed height. A curing net installation aid that is moved upward to assist in attaching the curing net to a scaffold, the tool comprising: a first hook portion that is fitted onto the cloth material; The second hook portion is provided with a double cylindrical main body, and the second hook portion is brought into contact with the fixture temporarily fixed to one support. The hook portion is connected to the outer cylinder of the main body, and the main body adjusts the relative position of the outer cylinder and the inner cylinder on the central axis of the main body by using an adjusting nut fixed in the inner cylinder and the outer cylinder. It is characterized in that it is configured to be adjustable by rotating an adjustment bolt that penetrates the inside and is rotatably supported by the outer cylinder .

In the curing net installation aid of the present invention, a fabric material is erected between a first support that is erected at a position distant from the building and a second support that is erected on the side of the building. In a scaffolding made of 3-pole scaffolding, the fixture is temporarily fixed at a height below the cloth material of the first support column, and the mounting device to which the upper edge of the curing net is locked is moved upward from the temporarily fixed height. It is configured to be moved to assist in attaching the protective net to the scaffold.

That is, a first hook part that is fitted onto the cloth material, a second hook part that is fitted onto the first support column and comes into contact with the fixture that is temporarily fixed to the first support support, and a second hook part that is fitted onto the outside of the outer cylinder. It has a double cylindrical main body formed by inserting a cylinder therethrough, the first hook part is connected to the inner cylinder of the main body, and the second hook part is connected to the outer cylinder of the main body. The main body is rotatably supported by the outer cylinder by passing through an adjustment nut fixed in the inner cylinder and the inside of the outer cylinder to determine the relative position of the outer cylinder and the inner cylinder on the central axis of the main body. It is configured to be adjustable by rotating an adjustment bolt , and when the relative positions of the outer cylinder and the inner cylinder on the central axis of the main body are separated from each other, the distance between the first hook part and the second hook part is increased. When the outer cylinder and the inner cylinder become relatively long and the relative positions of the outer cylinder and the inner cylinder on the central axis of the main body are separated from each other, the distance between the first hook part and the second hook part becomes relatively short.

In such a curing net installation aid, the distance between the first hook part and the second hook part is adjusted to an appropriate length dimension using the main body, and the first hook part is attached to the scaffold cloth. At the same time, the second hook part is fitted to the outside of the first support at a position below the height position at which the fixture of the first support is temporarily fixed. In this state, when the adjustment bolt on the main body is rotated to reduce the distance between the first hook part and the second hook part, the second hook part comes into contact with the bottom of the fixture, and then the first hook When the distance between the second hook part and the second hook part is reduced, the fixture moves above the first column along with the second hook part. Then, when the fixture is moved to an appropriate height position of the first support, the main body stops reducing the distance between the first hook part and the second hook part.

In this way, after fitting the first hook part onto the cloth material and fitting the second hook part to a position below the height of the first support fixture, rotate the adjustment bolt on the main body. By adjusting the distance between the first hook part and the second hook part, the attachment temporarily fixed to the first support can be easily moved above the first support and to the desired height position. Can be moved accurately. Therefore, the labor required for moving work can be reduced as much as possible. On the other hand, since the fixture can be moved without using a hammer or the like, deformation or damage to the fixture can be prevented, and the life of the fixture can be relatively extended.

(2) In the curing net installation aid according to the present invention, a bottom portion is provided at one end of the same side of the outer cylinder and the inner cylinder, and a bottom portion is provided inside the inner cylinder to indicate the relative position of the outer cylinder and the inner cylinder. An adjustment bolt for adjustment has one end inserted through the bottoms of both the outer cylinder and the inner cylinder, and a cylindrical bolt fitted onto the adjustment bolt is inserted into the bottom of the inner cylinder. An adjustment nut is fixed, and an annular bearing that receives the adjustment bolt is fixed to the bottom of the outer cylinder, and one end of the adjustment bolt that protrudes from the bottom of the outer cylinder holds the adjustment bolt. It is characterized by having a head for rotating it.

In the curing net installation aid of the present invention, a bottom is provided at one end of the same side of the outer cylinder and the inner cylinder, and a bottom part is provided in the inner cylinder to adjust the relative position of the outer cylinder and the inner cylinder. An adjustment bolt is inserted so that one end thereof passes through both the bottoms of the outer cylinder and the inner cylinder. A cylindrical adjustment nut fitted onto an adjustment bolt is fixed to the bottom of the inner cylinder, and the adjustment bolt passes through the adjustment nut.

Further, an annular bearing for receiving an adjustment bolt is fixed to the bottom of the outer cylinder, and the adjustment bolt passes through the bearing. On the other hand, one end of the adjustment bolt protruding from the bottom of the outer cylinder is provided with a head for rotating the adjustment bolt.

Then, when this head is rotated in the forward and reverse directions using, for example, an electric screwdriver, the adjusting bolt rotates forward and backward, so that the adjusting nut screwed thereon moves forward and backward in the longitudinal direction of the adjusting bolt. Since the relative position of the inner cylinder to which the adjustment nut is fixed and the outer cylinder carried by the head changes, the distance between the first hook part and the second hook part can be easily and accurately adjusted. Can be done.

Moreover, since the distance between the first hook part and the second hook part can be adjusted with such a relatively simple configuration, the manufacturing cost of the curing net installation aid can be reduced.

(3) In the curing net installation aid according to the present invention, the first hook portion is supported by a rod-shaped support member arranged parallel to the central axis of the main body, and the support member and the inner cylinder are connected. The connecting part has an annular part fitted onto the supporting member, and the supporting member fitted onto the annular part and the annular part can be fixed to each other at an appropriate position in the longitudinal direction of the supporting member. It is characterized by being configured as follows.

In the curing net installation aid of the present invention, the first hook portion is supported by a rod-shaped support member arranged parallel to the central axis of the main body, and the support member and the inner cylinder are connected at a connecting portion. The connecting part has an annular part fitted onto the supporting member, and the supporting member fitted onto the annular part and the annular part are configured to be fixed to each other at an appropriate position in the longitudinal direction of the supporting member. It has been done.

With this configuration, the distance from the annular portion to the first hook portion, that is, the distance between the first hook portion and the second hook portion, can be adjusted as appropriate. As a result, the distance between the first hook part and the second hook part can be adjusted in advance according to the distance between the cloth material and the fixture, so it can be adapted to various scaffolds. can.

(4) In the curing net installation aid according to the present invention, a pair of stop members for clamping and fixing the annular portion fitted externally on the supporting member are removably fitted externally on the supporting member. Features.

In the curing net installation aid of the present invention, the pair of stop members for clamping and fixing the annular portion fitted onto the support member are removably fitted onto the support member. After releasing the clamping and fixing of the annular part by the stop parts, and in that state, moving the annular part and the connecting part to appropriate positions in the longitudinal direction of the support member, the annular part can be clamped and fixed by the stop parts. Therefore, the distance from the annular portion to the first hook portion can be easily adjusted.

(5) The curing net installation aid according to the present invention is characterized in that the support member is comprised of a bolt, and the stop member is comprised of a nut that is screwed onto the support member.

In the curing net installation aid of the present invention, the support member is formed of a bolt, and the stop member is formed of a nut that is screwed into the support member, so that the first hook can be attached with a relatively simple structure. The distance between the hook part and the second hook part can be adjusted, and manufacturing costs can be reduced.

(6) In the curing net installation aid according to the present invention, a plurality of through holes penetrating the support member are opened at appropriate distances in the longitudinal direction of the support member, and the annular portion A pair of through-holes passing through the annular portion are opened at appropriate positions, and the through-holes are inserted into the annular portion while aligning one of the through-holes of the support member with the through-hole of the annular portion. , characterized in that it includes a first fixing pin that fixes the support member and the annular portion to each other.

In the curing net installation aid of the present invention, a plurality of through holes passing through the support member are opened at appropriate distances in the longitudinal direction of the support member, and are located at appropriate positions in the annular portion. A pair of through-holes are formed through the annular part, and one of the through-holes in the support member is inserted through the through-holes while the through-hole in the annular part is aligned with the through-hole in the annular part. A first fixing pin is provided for fixing the member and the annular portion to each other.

In such a configuration, the first fixing pin is removed to release the fixation between the support member and the annular portion, and in this state, the support member is moved to an appropriate position in the longitudinal direction of the support member with respect to the annular portion. After the movement, the support member and the annular portion are fixed to each other by aligning the appropriate through holes of the support member and the through holes of the annular portion and inserting the first fixing pin through the through holes. Can be done. Thereby, the distance from the annular portion to the first hook portion can be easily adjusted.

(7) The curing net installation aid according to the present invention is characterized in that both the support member and the annular portion are formed into a square shape when viewed in cross section.

In the curing net installation aid of the present invention, since both the support member and the annular part are formed into a square shape in cross-sectional view, the central axis of the main body or the support member is attached to the first hook part or the main body. Even if an external force that rotates around an axis parallel to is applied, it is possible to prevent the first hook portion or the main body from rotating against the external force. As a result, the posture of the first hook portion relative to the main body is maintained as it was initially, and the height adjustment work of the fixture can be smoothly performed.

(8) In the curing net installation aid according to the present invention, a male screw portion is provided on the outer peripheral surface of the other end side of the outer cylinder, the second hook portion is supported by a support arm, and the second hook portion is supported by a support arm. The support arm is characterized in that it is supported by another annular portion externally screwed onto the male screw portion.

In the curing net installation aid of the present invention, a male screw portion is provided on the outer peripheral surface of the other end of the outer cylinder, the second hook portion is supported by a support arm, and the second hook portion is supported by a support arm. is supported by another annular part that is externally screwed onto the male threaded part, so by rotating the support arm forward and backward around the outer cylinder, the gap between the second hook part and the first hook part can be removed. The distance can be easily adjusted.

(9) In the curing net installation aid according to the present invention, a cylindrical attachment part for inserting and attaching the proximal end of the support arm is fixed to the other annular part, and the support The arm has a plurality of through holes that penetrate the support arm and are spaced apart from each other by an appropriate distance in the longitudinal direction, and one or more pairs of through holes that pass through the attachment portion are provided at appropriate positions in the attachment portion. A hole is opened, and one of the through holes of the support arm and one of the through holes of the mounting part are inserted through the holes with the positions aligned, and the support arm and the mounting part are fixed to each other. It is characterized by comprising a second fixing pin.

In the curing net installation aid of the present invention, a cylindrical attachment part for inserting and attaching the proximal end of the support arm is fixed to the other annular part, and the support arm is attached to the support arm. A plurality of through holes penetrating the support arm are opened at appropriate distances in the longitudinal direction thereof, and one or more pairs of through holes penetrating the mounting portion are provided at appropriate positions of the mounting portion. A second through-hole is opened, and the support arm and the attachment part are fixed to each other by inserting the through-holes in the support arm and the attachment part while aligning the through-holes with the through-holes of the attachment part. Equipped with a fixing pin.

In this configuration, the proximal end of the support arm is inserted into the cylindrical attachment portion and the support arm is attached to the attachment portion, so that the distance from the main body to the second hook portion can be easily adjusted. This makes it possible to accommodate a variety of scaffolds.

At this time, the positions of the appropriate through holes among the plurality of through holes opened in the support arm and the appropriate pairs of through holes opened in the mounting part are aligned, and the second fixing pin is inserted across these through holes. Since the support arm can be fixed to the attachment part by inserting the support arm, such adjustment work is easy and work efficiency is further improved.

(10) In the curing net installation aid according to the present invention, the mounting portion has a base end of a support arm fixed thereto located at a height position on the head side, and a second support arm supported by the support arm. The device is characterized in that the two hook portions are inclined with respect to an axis perpendicular to the central axis of the main body so that the two hook portions are located at a height position on the side away from the head.

In the curing net installation aid of the present invention, the base end of the support arm fixed thereto is located at a height position on the head side, and the second hook is supported by the support arm. It is inclined with respect to an axis perpendicular to the central axis of the main body so that the part is located at a height position on a side remote from the head. That is, when adjusting the height position of the fixture, the support arm is fixed in a position where the height position of the second hook part is higher than the height position of the base end part.

The first hook part is fitted onto the fabric of the scaffold, while the second hook part is fitted onto the first support and is brought into contact with the fixture. In this state, the first hook part and the second hook part are fitted together. When the distance between the two supports is reduced, a force is applied to the attachment part to which the second support arm that communicates with the second hook part is attached, in the direction of separating it from the first support arm. The main body assumes a so-called bowing posture in which the distance between it and the first support increases as it moves toward the lower end of the main body, but as described above, the second support arm attached to the mounting part Since the height position of the second hook part is fixed at a higher position than the height position of the second support arm, the bowing position of the main body is offset, and the second support arm and the second hook part are fixed to the first support arm. It is held in a position approximately perpendicular to the main body. Thereby, the height position of the fixture temporarily fixed to the first support can be smoothly adjusted.

(11) The protective net installation aid according to the present invention is characterized in that the head is formed into a shape to which a driver can be connected.

In the curing net installation aid of the present invention, since the head is formed in a shape that allows connection of a driver, for example, an electric screwdriver can be connected to the head, and the electric screwdriver can be used to connect the head and adjustment. The bolt can be easily rotated in forward and reverse directions.

Here, the shape to which the driver can be connected may be a shape whose peripheral surface is formed into a polygon like a hexagonal bolt, or a shape with an appropriately shaped hole in the center such as a cross recess or a hexagonal hole. Although the shape may be a formed shape, the shape of a hexagonal bolt is preferable from the viewpoints of durability for repeated use, workability, easy availability, and the like.

(12) The protective net installation aid according to the present invention is characterized in that the other end of the adjusting bolt is provided with a retaining portion having an outer diameter larger than the inner diameter of the adjusting nut.

In the curing net installation aid of the present invention, the other end of the adjusting bolt is provided with a retaining portion having an outer diameter larger than the inner diameter of the adjusting nut, whereby the first hook portion Since the adjustment bolt is prevented from being pulled out from the adjustment nut when extending the distance between the second hook portion and the second hook portion to an appropriate length dimension, safety is high.

FIG. 2 is a perspective view showing a protective net installation aid according to the present invention. FIG. 2 is a partially cutaway enlarged side view of the main body shown in FIG. 1; FIG. 2 is a schematic side view showing how the protective net installation aid shown in FIG. 1 is used. It is a typical perspective view showing an example of a scaffolding and a curing net used in construction work. FIG. 3 is a perspective view of the fixture. FIG. 7 is a perspective view showing a curing net installation aid according to a second embodiment of the invention. FIG. 7 is a perspective view of the first hook portion and second support member shown in FIG. 6; FIG. 7 is a perspective view of the second hook portion and second support arm shown in FIG. 6; FIG. 2 is a perspective view showing how the fixture disclosed in Patent Document 1 is used.

The protection net installation aid according to the present invention will be explained in detail based on the drawings.
It should be noted that the protective net installation aid described in this embodiment is an example for explaining the gist of the present invention, and it goes without saying that the present invention includes modifications and modifications without departing from the gist.

(First form for carrying out the invention)
FIG. 4 is a schematic perspective view showing an example of a scaffold and a curing net used in construction work, and in the figure, 100 is a scaffold.

Scaffolding 100 includes a plurality of tubular first columns 101, 101, . ,... are placed upright facing each other at the same interval, and cloth materials 105, 105,... are provided between the opposing first columns 101, 101,... and second columns 102, 102,... It is connected at. In addition, tread materials 107, 107, ... are installed between adjacent cloth materials 105, 105, 105, 105, ..., so that workers can work on the tread materials 107, 107, ... It's like this. On the other hand, braces 104, 104, . . . are installed between appropriate first columns 101, 101, . . . and between appropriate second columns 102, 102, .

A plurality of pairs of fittings are removably attached to each of the first columns 101, 101, . A plurality of eyelets (not shown) are provided at predetermined intervals on the upper and lower edges of the curing net N, respectively, and each fixture has a locking arm that passes through the eyelets of the curing net N and locks the eyelets. It is provided.

FIG. 5 is a perspective view of the aforementioned fixture.

As shown in FIG. 5, the fixture 50 is attached to one end of an angle-shaped main body 51 whose inner side is formed into an arc shape, and which has a first end between it and the main body 51. One end of a clamping piece 52 for clamping the support column 101 (see FIG. 4) is connected via a hinge so as to be openable and closable.

One end of a tightening bolt 53 for tightening the clamping piece 52 is connected to the other end of the main body 51 so as to be rotatable around an axis parallel to the support axis of the clamping piece 52. A U-shaped recess 52a into which the tightening bolt 53 is fitted is provided at the other end. Then, the clamping piece 52 is opened to fit the main body 51 onto the first support column, and in this state, the clamping piece 52 is closed to allow the clamping piece 52 and the main body 51 to clamp the first support column, and the other end of the tightening bolt 53 is fitted into the recess 52a of the clamping piece 52, and the fixture 50 is fixed at an appropriate height position of the first support by tightening the nut 55 screwed onto the portion of the tightening bolt 53 protruding from the recess 52a. do.

The main body 51 of the fixture 50 has two L-shaped locking arms 56 on its outer surface facing the above-mentioned clamping pieces 52 in order to lock the curing net N (see FIG. 4). , 56 are provided in a protruding manner, and the locking arm 56 is inserted through an eyelet provided on the protective net N to lock the protective net N to the locking arm 56.

To attach the curing net N to the scaffolding 100 using such a fixture 50, place the fixture 50 at an appropriate position on the lower side of the first support 101, and position it so that the tips of its locking arms 56, 56 face downward. At the same time, another fitting 50 is temporarily fixed at an appropriate position on the upper side of the first support 101 with the tips of the locking arms 56, 56 facing upward. At this time, the fixture 50 on the upper side of the first support column 101 is temporarily fixed at a position slightly lower than the required height position.

Next, the eyelet provided at the lower edge of the curing net N was locked to the locking arm 56 of the fixture 50 fixed to the lower side of the first support 101, and then the eyelet provided on the lower edge of the curing net N was fixed to the upper side of the first support 101. An eyelet provided on the upper edge of the curing net N is locked to the locking arm 56 of the fixture 50. At this time, the upper attachment 50 of the first support 101 is temporarily fixed at a position slightly lower than the required height position, so that the eyelet of the curing net N is attached to the locking arm 56 of the attachment 50. , so that it can be easily locked.

Then, after moving the upper side fittings 50, 50, ... of the first column 101 to respective required height positions, the respective fittings 50, 50, ... are moved to the first column 101 by tightening the nuts 55. At the same time, the curing net N installed between the upper and lower pairs of fixtures 50, 50, 50, 50, .

FIG. 1 is a perspective view showing a protective net installation aid according to the present invention, and in the figure, 30 is a double cylindrical main body. Moreover, FIG. 2 is a partially cutaway enlarged side view of the main body 30 shown in FIG.

As shown in FIGS. 1 and 2, the main body 30 has a bottomed cylindrical inner cylinder 31 inside a bottomed cylindrical outer cylinder 32, with both bottom parts 31a and 32a facing each other, and one end of the inner cylinder 31. is inserted so that it can protrude from one end of the outer cylinder 32, and the outer cylinder 32 is supported by the inner cylinder 31 so as to be movable forward and backward coaxially with the central axis of the inner cylinder 31.

A long adjustment bolt 33 is inserted through the central axis of the inner cylinder 31 to adjust the relative position of the inner cylinder 31 and the outer cylinder 32 in the longitudinal direction. Further, within the end of the inner cylinder 31 on the bottom 31a side, an adjustment nut 36, which is made of a long cylindrical nut and has the adjustment bolt 33 threaded therethrough, is fixed.

An annular bearing 37 using a bearing is fitted and fixed at the end of the aforementioned outer cylinder 32 on the bottom 32a side, while an outer diameter adjustment bolt 33 is fixed at the center of the bottom 32a of the outer cylinder 32. A through hole with a slightly larger inner diameter is provided. One end of the adjustment bolt 33 that passes through the adjustment nut 36 is fitted into a bearing 37 and is rotatably supported by the bearing 37. Further, one end of the adjustment bolt 33 that passes through the bearing 37 passes through a through hole in the bottom 32a of the outer cylinder 32 and projects outward from the outer cylinder 32. A head 35, which has an outer diameter larger than the inner diameter and is formed into a shape to which a suitable driver such as an electric screwdriver can be connected, is fixed. As a result, the bottom 32a of the outer cylinder 32 and the outer cylinder 32 are supported by the head 35 and the adjustment bolt 33. A cylindrical retaining portion 34 having an outer diameter larger than the inner diameter of the adjusting nut 36 is externally fitted and fixed to the other end of the adjusting bolt 33. It is prevented from being pulled out from the nut 36.

Here, the shape of the head 35 may be a shape in which the peripheral surface is formed into a polygon like a hexagonal bolt, or a hole in an appropriate shape such as a cross hole or a hexagon hole is formed in the center. However, from the viewpoints of durability for repeated use, workability, ease of availability, etc., the shape of a hexagonal bolt is preferable.

Since the head 35 is formed in a shape to which a screwdriver can be connected, for example, an electric screwdriver can be connected to the head and the head and adjustment bolt can be easily rotated in the forward and reverse directions using the electric screwdriver. can.

A rod-shaped support member 14 is arranged in a position parallel to the central axis of the main body 30 at a position separated from the main body 30 by an appropriate length. It is supported by the main body 30 via a connecting portion 15 constructed between the end portion and the connecting portion 15 . The proximal end portion of the connecting portion 15 is fixed to the inner tube 31 of the main body 30, while the distal end portion of the connecting portion 15 is provided with an annular portion 15a that is slidably fitted onto the supporting member 14. The annular portion 15a is fixed at an appropriate position in the longitudinal direction of the support member 14 by annular stop portions 16, 16 which are movably fitted onto the support member 14.

A first hook portion 10 is fixed near the tip of the support member 14 in a posture such that the center axis of bending of the first hook portion 10 is perpendicular to the support member 14, and the first hook portion 10 is made of the aforementioned cloth. It is adapted to engage with the material 105 (see FIG. 4).

On the other hand, the curing net installation aid 1 includes a second hook portion 20 that is fitted onto the first support 101 and brought into contact with a fixture 50 (see FIG. 4) that is temporarily fixed there. , the second hook portion 20 is configured such that the central axis of bending of the second hook portion 20 is parallel to the central axis of the outer cylinder 32 by the support arm 25 which is externally screwed onto the outer cylinder 32 constituting the main body 30. It is supported by

A male threaded portion 32a formed by threading a thread is provided on the outer peripheral surface of the open end of the outer cylinder 32, and an annular portion (another annular portion) 25a provided at the base end of the support arm 25. A female thread (not shown) is provided on the inner peripheral surface of the connector. The support arm 25 is supported by the outer tube 32 so as to be movable in the longitudinal direction thereof by externally fitting the annular portion 25a into the male screw portion 32a.

In the protective net installation aid 1 having such a configuration, when a driver such as an electric screwdriver is connected to the head 35 protruding from the bottom 32a of the outer cylinder 32, and the head 35 is reversely moved by the driver, Since the outer cylinder 32 of the main body 30 moves forward in the direction away from the inner cylinder 31, the distance between the first hook part 10 and the second hook part 20 increases. On the other hand, when the head 35 is moved forward with a screwdriver, the outer cylinder 32 of the main body 30 retreats toward the inner cylinder 31, so that the distance between the first hook part 10 and the second hook part 20 is reduced. .

As will be described later, the curing net installation aid 1 uses this operation and the first hook portion 10 and the second hook portion 20 to adjust the attachment 50 temporarily fixed to the first support 101 to an appropriate height of the first support 101. Can be raised to position.

In the curing net installation aid 1 shown in FIG. Although the case is shown in which the annular part 15a fitted externally to the support member 14 is clamped and fixed by the stop parts 16, 16, the present invention is not limited to this, and for example, a bar material may be applied as the support member 14, As the parts 16, 16, an annular member that is fitted onto the supporting member 14 and a fixing screw member that is screwed into a screw hole passing through the annular member and that fixes the annular member by coming into contact with the supporting member are applied. Needless to say, it can be done.

On the other hand, when the support member 14 is configured with a long bolt and the stop portions 16, 16 are configured with nuts that are screwed onto the support member 14, the annular portion 15a fitted externally on the support member 14 is clamped and fixed. This is preferable because the structure of detachably fitting the support member 14 can be realized with the simplest possible structure, and therefore the manufacturing cost can be further reduced.

In addition, in the curing net installation aid 1 according to the present embodiment, the support member 14 that supports the first hook portion 10 is a connecting portion constructed between the support member 14 and the other end of the inner cylinder 31. 15, and the annular part 15a of the connecting part 15 is fitted onto the supporting member 14, so that the position of the annular part 15a in the longitudinal direction of the supporting member 14 can be changed. However, the present invention is not limited to this. For example, the first hook portion 10 may be fixed to the other end of an L-shaped arm member whose one end is fixed to the inner cylinder 31. It may be configured integrally.

On the other hand, the support member 14 that supports the first hook part 10 is supported by the main body 30 via a connection part 15 installed between the support member 14 and the other end of the inner cylinder 31. When the annular part 15a is fitted onto the support member 14 so that the position of the annular part 15a in the longitudinal direction of the support member 14 can be changed, the first hook part 10 can be placed at an appropriate position in the longitudinal direction of the support member 14. Since they can be fixed, the distance between the first hook part 10 and the second hook part 20 can be adjusted. As a result, the distance between the first hook part 10 and the second hook part 20 can be adjusted in advance according to the distance between the cloth material 105 and the fixture 50, so that it can be applied to various scaffolds. can be accommodated.

Further, as described above, the support arm 25 that supports the second hook part 20 has the annular part 25a provided at the base end thereof externally fitted into the male thread part 32a of the outer cylinder 32, and thereby, Since the support arm 25 is supported by the outer cylinder 32 so as to be movable in the longitudinal direction thereof, by rotating the support arm 25 forward and backward around the outer cylinder 32, the second hook part 20 and the first hook part 10 are connected. The distance between them can be easily adjusted.

FIG. 3 is a schematic side view showing how the curing net installation aid 1 shown in FIG. 1 is used. The operation of raising it to an appropriate height position will be explained. Note that in FIG. 3, parts corresponding to those shown in FIG. 1 are given the same numbers.

As shown in FIG. 3, the scaffold 100 has a first support 101 and a second support 102 arranged opposite to each other with a predetermined distance between them. A cylindrical cloth material 105 is installed between the two positions. In addition, the above-mentioned fixture 50 is temporarily fixed at a position a little distance downward from the upper end of the first support 101, and the locking arm of this fixture 50 is attached to the upper edge of the curing net (not shown). The eyelet is locked.

After the work of locking the protective net to the fixture 50 is completed, the first hook portion 10 of the protective net installation aid 1 is fitted onto the cloth material 105, while the second hook portion 20 is fitted onto the first support 101. Let it fit. Note that when installing the protective net installation aid 1 on the scaffold 100, the head 35 provided on the body 30 of the protective net installation aid 1 is reversely moved using an electric screwdriver or the like, and the outer cylinder of the body 30 is removed. 32 is lowered, the distance between the first hook part 10 and the second hook part 20 is increased, and the second hook part 20 is expanded while the first hook part 10 is fitted onto the cloth material 105. It is positioned below the fixture 50.

At this time, as shown in FIG. 2, at the other end of the adjustment bolt 33, which has a head 35 at one end, a retaining portion 34 having an outer diameter larger than the inner diameter of the adjustment nut 36 is provided. The adjustment bolt 33 is prevented from being pulled out from the adjustment nut 36, resulting in high safety.

In this state, a driver such as an electric screwdriver is connected to the head 35, and the driver moves the head 35 forward to raise the outer cylinder 32 of the main body 30, thereby connecting the first hook part 10 and the second hook part 10. The distance between the second hook part 20 and the second hook part 20 is reduced, and the second hook part 20 is brought into contact with the bottom of the fixture 50, as shown in FIG. Furthermore, when the head 35 is moved forward with a screwdriver to reduce the distance between the first hook part 10 and the second hook part 20, the fixture 50 that the second hook part 20 abuts becomes the first one. Move above the pillar 101.

A mark (not shown) is marked in advance at the required height position of the first support 101, and when the head 35 is moved forward until the fixture 50 reaches the position of the mark, when the fixture 50 reaches the position of the mark. Then, the rotation of the head 35 is stopped. Then, the temporarily attached fixture 50 is permanently attached. As a result, the curing net secured to the fixture 50 is expanded.

Thereafter, the head 35 is moved backward again to separate the second hook part 20 from the fixture 50, and in this state, the second hook part 20 is removed from the first support column 101, and the first hook is removed from the cloth material 105. Remove part 10.

In such a curing net installation aid 1, simply by moving the head 35 of the main body 30 forward and backward using a driver such as an electric screwdriver, the attachment 50 temporarily fixed to the first support 101 can be moved to a predetermined position. Since it can be easily raised to a high position, the labor required to move the fixture 50 on the first support column 101 can be significantly reduced. Furthermore, since the fixture 50 can be moved without using a hammer or the like, deformation or damage to the fixture 50 can be prevented, and the life of the fixture 50 can be relatively extended.

(Second form for carrying out the invention)
FIG. 6 is a perspective view showing a curing net installation aid according to a second embodiment of the invention, which can prevent rotation of the first hook part 10 and also connects the main body 30 to the second hook part. Dimensions up to 20 are adjustable. Note that in the figure, parts corresponding to those in FIG. 1 are given the same numbers, and their explanations will be omitted.

As shown in FIG. 6, the first hook portion 10 is fixed near one end of a square tubular second support member (support member) 14b with at least one end closed. Further, a second annular portion 15b having a rectangular cylindrical shape with an appropriate length is provided at the distal end of the aforementioned connecting portion 15, and a second support member 14b is inserted through this second annular portion 15b. be.

FIG. 7 is a perspective view of the first hook portion 10 and second support member 14b shown in FIG. 6. Note that in the figure, parts corresponding to those in FIG. 1 are given the same numbers.

The second support member 14b has an annular shape with a substantially square cross-sectional view, and a first hook formed by forming a short band plate into a U-shape is provided near one end of the second support member 14b where the second support member 14b is blocked. The portion 10 is fixed in such a manner that one outer surface thereof faces one side surface of the second support member 14b. A plurality of pairs of through holes 14h, 14h, ..., 14h, 14h, ... passing through the second support member 14b are formed in the four side surfaces of the second support member 14b in the longitudinal direction of the second support member 14b, respectively. The first fixing pin 41 (see FIG. 6) can be inserted through the pair of through holes 14h, 14h, . . . , 14h, 14h, . It has become.

As shown in FIG. 6, second through holes 15h (15h) penetrating through the second annular portion 15b are provided at substantially central positions on both opposing side surfaces of the second annular portion 15b. After determining the orientation of the first hook portion 10, the second support member 14b described above is inserted into the second annular portion 15b, and appropriate pairs of through holes 14h (14h ) and the pair of through holes 15h (15h) formed in the second annular portion 15b, and the first fixing pin 41 is aligned across the through holes 14h (14h) and through holes 15h (15h). The direction of the first hook part 10 and the distance from the second annular part 15b to the first hook part 10 are adjusted by inserting the second support member 14b into the second annular part 15b. .

On the other hand, as shown in FIG. 6, the annular part (another annular part) 25a that is externally screwed onto the male threaded part 32a of the outer cylinder 32 has a short band-like cylindrical attachment part 26 at its center. It is fixed in such a manner that its axis intersects the central axis of the outer cylinder 32, and its side surface perpendicular to the thickness direction faces the annular part 25a, and is attached to the attachment part 26 and to the second hook part 20. The proximal end side of a communicating second support arm (support arm) 25b is inserted and fixed.

FIG. 8 is a perspective view of the second hook portion 20 and second support arm 25b shown in FIG. 6. Note that in the figure, parts corresponding to those in FIG. 1 are given the same numbers.

As shown in FIG. 8, a second hook portion 20 having the same width dimension as the second support arm 25b extends from the distal end side of the second support arm 25b in the shape of a strip. A plurality of (three in FIG. 8) through holes 25h, 25h, 25h passing through the second support arm 25b are opened at appropriate intervals on the base end side of the support arm 25b.

As shown in FIG. 6, one or more pairs (two pairs in FIG. 6) of through holes 26h (26h), 26h, which pass through the mounting portion 26, are provided on both sides of the mounting portion 26, respectively. (26h) has been opened. Then, the proximal end side of the second support arm 25b described above is inserted into the attachment part 26, and an appropriate pair of through holes 25h opened in the second support arm 25b and an appropriate pair of penetration holes opened in the attachment part 26 are inserted. The distance from the main body 30 to the second hook part 20 is adjusted by aligning the position with the hole 26h (26h) and inserting the second fixing pin 42 through the through hole 25h and the through hole 26h (26h). The second support arm 25b is fixed to the mounting portion 26.

As described above, the central axis of the mounting portion 26 and the central axis of the outer cylinder 32 are configured to intersect, and the intersection angle is perpendicular to the central axis of the outer cylinder 32 in the case shown in FIG. It is set at an appropriate angle in the range of 5° to 25° clockwise from the axis. As a result, the second support arm 25b attached to the attachment part 26 is fixed in a position where the height position of the distal end, that is, the height position of the second hook part 20 is higher than the height position of the base end. be done.

To adjust the height position of the fixture 50 (see FIG. 3) temporarily fixed to the first support 101 of the scaffolding 100 using such a curing net installation aid 1a, use an electric screwdriver as before. Adjust the head 35 to move forward or backward using a tool such as, so that the second hook part 20 is positioned below the fixture 50 while the first hook part 10 is fitted onto the cloth material 105. Then, the first hook part 10 of the curing net installation aid 1a is fitted onto the cloth material 105, and the second hook part 20 is fitted onto the first support column 101.

Then, by connecting a driver such as an electric screwdriver to the head 35 and moving the head 35 forward with the driver to raise the outer cylinder 32 of the main body 30, the first hook part 10 and the second hook part 20 are connected. After reducing the distance between them and bringing the second hook part 20 into contact with the bottom of the fixture 50, further move the head 35 forward with a screwdriver to separate the first hook part 10 and the second hook. 20, and the fixture 50 with which the second hook part 20 abuts is moved to a required position above the first support column 101.

In addition to the various functions and effects described above, such a curing net installation aid 1a has the ability to prevent external forces around the central axis of the second support member 14b or the force of the main body 30 from acting on the main body 30 or the first hook portion 10, etc. When an external force or the like around the central axis is applied, the attitude of the first hook portion 10 with respect to the main body 30 tends to change. Since the second annular portion 15b is inserted into the second annular portion 15b, which has a substantially square annular shape, even if any of the external forces described above are applied, the first annular portion 15b against the main body 30 can be reliably resisted. The initial posture of the hook portion 10 is maintained.

When the posture of the first hook portion 10 relative to the main body 30 changes, it is necessary to readjust it back to the original posture, but with the present curing net installation aid 1a, such a posture change can be avoided. This eliminates the need for readjustment, improving work efficiency.

In addition, in the present curing net installation aid 1a, an appropriate pair of through holes 14h (14h) opened in the second support member 14b and a pair of through holes 15h (14h) opened in the second annular portion 15b are provided. 15h) and inserting the first fixing pin 41 through the through hole 14h (14h) and the through hole 15h (15h), from the second annular portion 15b to the first hook portion 10. Since the distance can be adjusted, such adjustment work is easy and work efficiency is further improved.

On the other hand, in the present curing net installation aid 1a, the base end side of the band-shaped second support arm 25b is inserted into the short band-shaped cylindrical attachment part 26, and the second support arm 25b is attached. Since it is attached to the attachment part 26, the distance from the main body 30 to the second hook part 20 can be easily adjusted. This makes it possible to accommodate a variety of scaffolds.

At this time, the positions of the appropriate through-hole 25h opened in the second support arm 25b and the appropriate pair of through-holes 26h (26h) opened in the mounting portion 26 are aligned, and the through-hole 25h and the through-hole 26h ( Since the second support arm 25b can be fixed to the mounting portion 26 by inserting the second fixing pin 42 over the length 26h), this adjustment work is easy as before, and work efficiency is further improved. .

Further, as described above, the first hook part 10 of the protective net installation aid 1a is fitted onto the cloth material 105, while the second hook part 20 is fitted onto the first support 101, and the mounting tool 50 (both shown in FIG. ) and in this state, when the distance between the first hook part 10 and the second hook part 20 is reduced, the second support arm 25b communicating with the second hook part 20 is attached. Since a force is applied to the portion 26 in the direction of separating it from the first support column 101, the main body 30, which was parallel to the first support column 101, becomes closer to the first support column 101 as it moves toward the lower end of the main body 30. However, as mentioned above, in the present curing net installation aid 1a, the second support arm 25b attached to the attachment part 26 is at the height position of its base end. Since the height position of the second hook portion 20 is fixed at a higher posture, the bowing posture of the main body 30 is offset, and the second support arm 25b and the second hook portion 20 are attached to the first support 101. It is held in a position approximately perpendicular to the main body. Thereby, the height position of the fixture 50 temporarily fixed to the first support column 101 can be smoothly adjusted.

In addition, even in the above-mentioned curing net installation aid 1 (see FIG. 1), the height position of the second hook part 20 is lower than the height position of the base end of the support arm 25 fixed to the annular part 25a. It is better to take a higher posture.

1 Curing net installation aid 1a Curing net installation aid 10 First hook portion 14 Support member 14b Second support member (support member)
14h Through hole 16 Stop part 15 Connecting part 15a Annular part 15b Second annular part 20 Second hook part 25 Support arm 25a Annular part (other annular part)
25b Second support arm (support arm)
25h Through hole 26 Mounting part 26h Through hole 30 Main body 31 Inner cylinder 32 Outer cylinder 33 Adjustment bolt 34 Retaining part 35 Head 36 Adjustment nut 37 Bearing 41 First fixing pin 42 Second fixing pin 50 Mounting tool 101 First Post 102 Second post 105 Cloth material N Curing net

Claims (12)

A scaffold constructed by erecting fabric material between a first pillar erected at a position distant from the building and a second pillar erected closer to the building than the first pillar, wherein the first pillar is Attach the curing net to the scaffold by moving the attachment that is temporarily fixed at a height below the cloth material and locking the upper edge of the curing net above the temporarily fastened height. An auxiliary curing net installation aid,
A first hook part that is fitted onto the cloth material; a second hook part that is fitted onto the first support and comes into contact with the fixture that is temporarily fixed to the first support; Equipped with a main body,
The first hook portion is connected to the inner cylinder of the main body,
The second hook portion is connected to the outer cylinder of the main body,
The main body is configured to adjust the relative position of the outer cylinder and the inner cylinder on the central axis of the main body by passing through an adjustment nut fixed in the inner cylinder and the inside of the outer cylinder, and rotatably supported by the outer cylinder. A curing net installation aid characterized by being configured to be adjustable by rotating an adjustment bolt . A bottom portion is provided at one end of the same side of the outer cylinder and the inner cylinder, respectively,
An adjustment bolt for adjusting the relative position of the outer cylinder and the inner cylinder is inserted into the inner cylinder so that one end thereof passes through the bottoms of both the outer cylinder and the inner cylinder,
A cylindrical adjustment nut externally fitted onto the adjustment bolt is fixed to the bottom of the inner cylinder,
An annular bearing is fixed to the bottom of the outer cylinder to receive the adjustment bolt.
The curing net installation aid according to claim 1, wherein one end of the adjustment bolt protruding from the bottom of the outer cylinder is provided with a head for rotating the adjustment bolt. The first hook portion is supported by a rod-shaped support member arranged parallel to the central axis of the main body, and the support member and the inner cylinder are connected at a connecting portion,
The connecting portion has an annular portion that is fitted onto the supporting member,
3. The curing net installation aid according to claim 2, wherein the support member fitted onto the annular portion and the annular portion are configured to be fixed to each other at appropriate positions in the longitudinal direction of the support member. 4. The curing net installation aid according to claim 3, wherein a pair of stop members for clamping and fixing the annular portion externally fitted on the supporting member are removably fitted externally on the supporting member. The support member is composed of a bolt,
5. A curing net installation aid according to claim 4, wherein said stopper member comprises a nut that is screwed onto the support member. A plurality of through holes passing through the support member are opened at appropriate distances in the longitudinal direction of the support member,
A pair of through holes passing through the annular portion are opened at appropriate positions in the annular portion,
Claim 3, further comprising a first fixing pin that fixes the support member and the annular portion to each other by inserting the through holes of the support member into the through holes of the annular portion while aligning the two through holes. The listed curing net installation aid. The curing net installation aid according to claim 6, wherein both the support member and the annular portion are formed into a square shape when viewed in cross section. A male screw portion is provided on the outer peripheral surface of the other end side of the outer cylinder,
8. The second hook portion is supported by a support arm, and the support arm is supported by another annular portion externally screwed onto the male screw portion. A curing net installation aid. A cylindrical attachment part for inserting and attaching the proximal end part of the support arm is fixed to the other annular part,
A plurality of through holes passing through the support arm are opened at appropriate distances in the longitudinal direction of the support arm,
One or more pairs of through holes passing through the mounting portion are opened at appropriate positions of the mounting portion,
A second fixing pin is provided that fixes the support arm and the attachment part to each other by inserting the through-holes of the support arm and the attachment part into each other while aligning the two through-holes. The curing net installation aid according to claim 8. The attachment part has a base end of a support arm fixed thereto located at a height position on the side of the head, and a second hook part supported by the support arm at a height on a side away from the head. The curing net installation aid according to claim 9, wherein the curing net installation aid is inclined with respect to an axis perpendicular to the central axis of the main body so as to be located at the same position. The curing net installation aid according to any one of claims 2 to 7, wherein the head is formed into a shape to which a driver can be connected. The curing net installation aid according to any one of claims 2 to 7, wherein the other end of the adjusting bolt is provided with a retaining portion having an outer diameter larger than an inner diameter of the adjusting nut.

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