TW202030408A - Bracket for self-propelled lifting-type temporary unit - Google Patents

Abstract

To more reliably achieve a falling prevention function in a bracket used for fixing a self-propelled lifting-type temporary unit. The present invention is provided at least with: an arm part 40 that is rotatably attached so as to be rotatable in the vertical direction with respect to a body part 10; an urging element 50 that urges the arm part 40 in one rotating direction; and a gate part 60 that is provided at the tip of the arm part 40 and forms an inclined surface 61 on the lower side thereof. From a closed state in which a passing space of traverse members B is closed, the gate part 60 causes the rising traverse members B to overcome the urging by the urging element 50 by coming into contact with the inclined surface 61, and rotate the arm part 40 in the other rotating direction and allow the traverse members B only to pass upward.

Description

Bracket for self-propelled rising temporary setting unit

The present invention relates to a bracket used for a temporary installation unit that can be self-propelled and moved up and down. It is mainly installed on the outside of a structure under construction and used as an installation frame for temporary installation of scaffolding or anti-falling nets. Function.

The so-called self-propelled ascending temporary installation unit (hereinafter also referred to as "temporary installation unit") means that it can be fixedly installed on a bracket installed on a structure by using the The traction device is hoisted upwards, so that it can perform self-propelled ascending actions. It is often used as an installation frame for installing scaffolding for construction works, etc., or as an installation frame for anti-falling nets.

In order to prevent the accidental drop of the temporary installation unit, an invention described in Patent Document 1 below is known if an anti-drop mechanism is installed on the side of the bracket mounted on the structure. In the scaffolding and maintenance unit described in Patent Document 1, the bracket fixed to the structure is provided with a handle that can close and open the gap through the stay provided on the frame side. Limit the direction of rotation of the brake handle to prevent the tie rod from passing from top to bottom. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent No. 4058383

[The problem to be solved by the invention]

However, the invention described in Patent Document 1 has the problems described below. (1) When the tie rod hits the brake handle by falling, a large impact is generated on the rotating shaft of the brake handle, so there is a concern about the damage of the rotating shaft. Once the rotating shaft is damaged, the anti-drop function will be lost.

Therefore, the purpose of the invention of this application is to provide a device that can more reliably perform the anti-drop function. [Means to solve the problem]

The first invention of the present application formed to solve the above-mentioned problems is a bracket for fixing a self-propelled ascending temporary installation unit provided on the outside of a wall of a structure, which at least includes a main body, Installed on the structure; the storage part is set on the front end side of the main body part, and the vertical material constituting the temporary installation unit is stored in a movable manner; the fixed part can be stored in the state of the storage part The longitudinal member is fixed; the arm portion is mounted with respect to the main body so as to be rotatable with the vertical direction as the rotation axis direction; the urging body urges the arm portion in one of the rotation directions; and the door portion , Installed at the front end of the arm portion, and an inclined surface is formed on the lower side; and the door portion is blocked from the passing place of the cross member constituting the temporary installation unit by the force of the force applying body , The ascending cross member exceeds the above force by contacting the inclined surface, so that the arm rotates in another direction of rotation and only allows the cross member to pass upwards, and returns to the occlusion after the cross member passes State, so as to restrict the downward passage of the above-mentioned cross member to operate. Furthermore, the second invention of the present application is characterized in that in the first invention described above, the inclined surface is formed as a curved surface. In addition, the third invention of the present application is characterized in that, in the first or second invention, the main body portion has at least a set of flanges arranged vertically opposite, and the arm portion is accommodated between the flanges In the form of installation, a washer is interposed between the flange and the arm at the position where the rotating shaft is installed. [Effects of Invention]

According to the present invention, the effects described below are exhibited. (1) Since the axis of rotation of the arm is set in the up and down direction, the door that is installed at the front end of the arm and is responsible for opening and closing the passage part of the cross member, even if the cross member falls from above and hits It is difficult to generate a large impact force in a direction substantially orthogonal to the axial direction of the rotating shaft, and it is difficult to cause damage to the rotating shaft. (2) When the crossbar falls from the top and hits the door, there is no accidental rotation of the arm to open the door. (3) By setting the inclined surface of the door as a curved surface, the amount of rotation of the arm per unit rise relative to the cross member can be gradually shortened. Therefore, by performing the rotation operation of the urging body more slowly when the amount of rotation in the direction opposite to the urging direction increases, it is possible to suppress concerns such as damage to the urging body. (4) Since the arm is mounted in a rotatable manner with a washer interposed between a set of flanges constituting the main body, it is possible to prevent the arm from contacting with the flange. Concerns about stopping rotation.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. [Example 1]

＜1＞The overall structure Fig. 1 shows a state where the bracket of the present invention is installed on a structure and a temporary installation unit is stored.

<1.1> Temporary setting unit (Figure 1) The temporary installation unit is a component used as a work scaffold or installation frame. In this embodiment, the temporary installation unit includes at least: vertical material A with the vertical direction as the longitudinal direction, and horizontal material B with the front-rear direction as the longitudinal direction. The vertical material A and the horizontal material B, and other members are appropriately set. Combine them to form structures such as scaffolding or mounting frame. When the temporary installation unit is raised, the chain crane and the like installed on the structure X are tied to the constituent members of the temporary installation unit to perform a traction operation.

<1.2> Bracket (Picture 1) The bracket is a device that is fixed to the structure X and is used to fix or store the temporary installation unit freely. The bracket is in a state where the rear end side is fixed to the structure X, and on the front end side, the temporary installation unit is stored in a state that can slide up and down. In this embodiment, the bracket includes at least a main body portion 10, a receiving portion 20, a fixing portion 30, an arm portion 40, a force applying body 50 and a door portion 60. Hereinafter, the details of each constituent element will be described.

＜2＞The body part (Figure 1) The main body 10 is a member for the front end to protrude outward from the wall of the structure X when it is installed on the structure X. In this embodiment, the main body 10 includes two elongated members with a cross-section U-shaped by a flange 11 and a web 12, so that the web 12 of each elongated member is separated by a predetermined interval. The way of opposing is to combine the two and integrate them. Behind the main body portion 10, there is a mounting portion 13 for mounting on the structure X using well-known fixing elements such as anchor bolts.

<3> Storage section (Figure 1) The accommodating part 20 is a member for accommodating the vertical material A which comprises a temporary installation unit in the state which can move up and down. In this embodiment, on the front surface of the flat plate arranged to extend from the top of the main body 10 toward the front end side of the bracket, the storage portion is formed by the plate that is elongated by sandwiching the vertical member A from both sides 20.

＜4＞Fixed part (Figure 1) The fixing portion 30 is a member for fixing and positioning the longitudinal member A stored in the storage portion 20. In this embodiment, clamps installed on the flat plate in a detachable manner at two locations directly above the receiving portion 20 constitute the fixing portion 30 respectively. By clamping the clamp, the vertical material A becomes a state to be held by the clamp, and when the clamp is opened, the vertical material A becomes a state that can move up and down.

＜5＞Arm (Figure 1, 2) The arm portion 40 is a member for opening and closing the door portion 60 described later by being configured to be rotatable by setting the vertical direction as the rotating shaft 41 with respect to the main body portion 10. FIG. 2 shows a schematic side view of the periphery of the mounting portion 13 of the main body portion 10 and the arm portion 40. In this embodiment, the arm portion 40 is constituted by a long member showing a cross-sectional U-shape, and the rear end side is rotatably mounted to the main body portion 10 through a rotating shaft 41 whose vertical direction is the axial direction. At this time, the height of the arm portion 40 is a length shorter than the distance between the flanges 11 of the U-shaped member constituting the body portion 10, in the insertion holes respectively provided on the flange 11 and the arm portion 40 , The bolt that becomes the above-mentioned rotating shaft 41 is inserted and fixed with a nut, whereby the arm part 40 is mounted to the main body part 10 in a rotatable state.

＜5.1＞The spacer setting of the gasket Furthermore, as shown in FIG. 2, it is preferable that a gasket 42 is interposed in the gap between the flange 11 of the main body portion 10 and the arm portion 40. The reason for this is to suppress the concern that the rotation of the arm 40 will stop due to the contact between the arm 40 and the flange 11.

＜6＞Forcing body (Figure 1) The urging body 50 is a member for urging the rotation of the arm 40 to one of the rotation directions. The urging body 50 can use a known member such as an elastic member. In this embodiment, the urging body 50 is constituted by a torsion coil spring, the torsion coil spring is inserted into the rotating shaft 41, one end of the torsion coil spring is set to be in contact with the body portion 10, and the other end is set to be in contact with the arm The contact state of the part 40 thereby sets the rotation action of the arm part 40 to a state where a force is applied to one of the rotation directions.

＜7＞Door (Figure 1) The door 60 is installed at the front end of the arm 40, and is used to block and open the passing place of the cross member B constituting the temporary installation unit by the rotation of the arm 40. In this embodiment, the upper member extending from the upper side of the arm portion 40 to the lateral direction and the upper surface is set as a flat surface, and the two sides forming a substantially right-angled triangle shape and the lower end of the upper member and the arm portion 40 are used. The web 12 is connected to the lower member to form the door 60. One side (hypotenuse) of the three sides constituting the lower member is opened to form a linear inclined surface 61.

＜8＞Use image (Figure 1, Figure 3) 3, the use image of the bracket of the present invention will be described. FIG. 3 is a side plan view showing the turning motion of the arm 40. In addition, in FIG. 3, in order to describe the relationship with the arm part 40, the door part 60, and the cross member B, the illustration is simplified, and the storage part 20 or the fixing part 30 is not shown. In the state where the fixing by the fixing part 30 is opened, when the chain crane or the like installed on the structure X is used to perform the lifting action of the temporary installation unit, the vertical member A stored in the storage part 20 is directly upward Square sliding movement (Picture 1) If the ascending motion continues to advance, the cross member B soon starts to contact the door 60 (Figure 3(a)). If the cross member B continues to rise in this state, the arm portion 40 rotates in the opposite direction to the direction of force applied by the arm portion 40 by sliding upward at the contact position of the cross member B with the inclined surface 61. As a result, the door 60 is opened and operates in a manner that allows the passage of the cross member B (FIG. 3( b )). After the cross member B has passed, the urging body 50 is used to rotate the arm portion 40 in such a manner that it returns to the above-mentioned closed state (FIGS. 1, 3(a)). In this blocked state, it is assumed that even if the temporary installation unit falls, the cross member B located above the door 60 immediately interferes with the door 60, so the falling stops. In addition, even if the cross member B hits from above the door 60, the door 60 does not transition to an opening operation, and therefore, no further temporary installation unit falls.

＜8.1＞The rotation angle of the arm In addition, the rotation angle θ of the arm portion 40 from the closed position to the passing allowable position of the cross member B shown in FIG. 3(b) is preferably within 30°. The reason is that if the angle of rotation in the opposite direction increases with respect to the arm part 40 in a state where the force is applied in one of the rotation directions by the force application body 50 described later, it may cause breakage of the force application body 50, etc. . The rotation angle can be adjusted by using the separation distance between the rotation shaft 41 and the door 60. [Example 2]

4, the second embodiment of the present invention will be described. In the bracket of the present invention, the inclined surface 61 formed on the door 60 can be a curved surface. In this embodiment, the inclined surface is bent in a direction bulging toward the outside. According to this embodiment, the amount of rotation of the arm portion 40 per unit lift amount of the cross member B can be gradually shortened. That is, in the initial stage when the cross member B contacts the inclined surface, the amount of torsion in the opposite direction of the torsion coil spring used as the urging body 50 is still small, and there is a margin. Therefore, it is configured that the arm portion is slightly raised by the cross member B. 40 large rotation; in the final stage of the cross-bar B passing, the torsion amount of the torsion coil spring has been increased, and the margin is reduced. Therefore, the rotation amount of the arm 40 relative to the unit rise of the cross-bar B is reduced to slowly The torsion action is used to function, so the burden of the torsion coil spring can be reduced and the fear of damage can be suppressed.

10: Body part 11: flange 12: Web 13: Installation Department 20: Storage department 30: Fixed part 40: Arm 41: Rotation axis 42: Washer 50: force body 60: Door 61: Inclined surface A: Longitudinal B: Cross material X: structure

[Fig. 1] A schematic perspective view of the bracket of Example 1. [Fig. [Figure 2] is a schematic side view of the periphery of the main body and the arm part of the mounting part. [Figure 3] A side plan view showing the swinging motion of the arm. [Fig. 4] A schematic front view showing the shape of the door of the bracket of Example 2. [Fig.

10: Body part

11: flange

12: Web

13: Installation Department

20: Storage department

30: Fixed part

40: Arm

41: Rotation axis

50: force body

60: Door

61: Inclined surface

A: Longitudinal

B: Cross material

X: structure

Claims (3)

A bracket for a self-propelled ascending temporary setting unit, which is used to fix a self-propelled ascending temporary setting unit arranged on the outside of a wall of a structure, and is characterized in that it includes at least: The main body is installed on the structure; The accommodating part is arranged on the front end side of the main body part, and the longitudinal material constituting the temporary installation unit is housed in a manner that can move up and down; The fixing part can fix the above-mentioned longitudinal member in the state of being stored in the above-mentioned receiving part; The arm part is mounted relative to the above-mentioned body part in such a way that it can rotate with the vertical direction as the rotation axis direction; The force applying body applies force to the arm in one of the rotation directions; and The door is arranged at the front end of the arm and has an inclined surface formed on the lower side; and Department of the above From the occluded state where the passing place of the cross member constituting the temporary installation unit is blocked by the urging force of the above-mentioned urging body, the rising cross member contacts the above-mentioned inclined surface and exceeds the above-mentioned urging force, so that the arm Rotate in the other rotation direction to allow only the cross member to pass upward, and return to the occluded state after the cross member passes, thereby operating in a manner that restricts the cross member from passing downward. The bracket for the self-propelled ascending temporary installation unit as described in claim 1, wherein: The inclined surface is formed as a curved surface. The bracket for the self-propelled ascending temporary setting unit as described in claim 1 or 2, wherein: The above-mentioned body part includes at least a set of flanges arranged opposite to each other up and down, The above-mentioned arm is installed in the form of being stored between the above-mentioned flanges, and A washer is interposed between the flange and the arm at the location where the rotating shaft is provided.

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