JP2014043681A - Wall tie device for work scaffolding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wall tie device which is adaptable to a wide wall tie interval range without requiring such complicated work as changing components, although an interval between a work wall surface and a work scaffolding is changed in accordance with a structure of the wall surface or a configuration of the scaffolding.SOLUTION: A mechanism for tying a work wall surface A and a work scaffolding B is structured similarly to a pantograph jack, such that wall tying can be performed over a wide interval range by a single device. A wall tie device 1 is based on the conception that a pantograph structure is capable of dealing with tie intervals over a wide range.

Description

  The present invention relates to a wall connecting device for connecting and fixing a work scaffold for performing work on a high wall surface such as building maintenance to a building wall surface.

  Currently, there are two methods for maintenance such as building wall maintenance: hanging the gondola and working from the ground. The work method using the gondola has a drawback that the gondola is shaken by wind or the like and the work cannot be stably performed.

  When building a scaffold from the ground, it is necessary to firmly fix the work scaffold to the wall surface, especially when working at a high place. However, in many cases, the wall surface structure is not a uniform plane. In this case, the interval between the wall surface and the scaffold is not constant, and a fixing device that can cope with different intervals between the wall surface and the scaffold is required.

  Conventionally, as shown in FIG. 1, a work pipe and a clamp are used to connect from a work scaffold to an anchor bolt which is a part of a wall surface. In this method, if the distance between the wall surface and the scaffolding changes, it is necessary to change the length of the single pipe and reconnect it.

  As other conventional methods, various proposals have been made on the above-described fixing device for the wall surface and work scaffold as a wall connecting device. Patent Document 1 discloses a technical idea relating to a wall connecting structure that is often used in practice. Although it is an excellent idea in that the number of parts is small and the construction work is easy, the distance between the wall surface and the work scaffold is defined by the length of the turnbuckle-like tube. For this reason, as for the said space | interval, the shortest space | interval will be substantially the length of a tubular body, and the longest space | interval will be restrict | limited to the length of about twice as long as a tubular body.

  As described above, in the method as disclosed in Patent Document 1, when the distance between the wall surface and the work scaffold is to be shortened, the tube must be replaced with a longer tube when the tube is replaced with a shorter tube or longer. It takes time and effort.

  The technical idea disclosed in Patent Document 2 has a simpler configuration than that of Patent Document 1, but since the distance between the wall surface and the scaffold is defined by the length of the main shaft male screw portion, it is as diverse as Patent Document 1. It takes a lot of time and effort to deal with the wall surfaces and various work scenes.

Japanese Patent Laid-Open No. 10-231622 JP 2001-254510 A

  In view of the circumstances as described above, in the present application, as a wall connecting device that fixes a wall surface and a scaffold, while securing the safety of the scaffold by firmly fixing both, it is an object to realize a wall connecting device that can be easily adapted And

  It is another object of the present invention to make it possible to adapt to a wide wall connecting interval range without requiring a complicated operation of changing the components of the wall connecting device.

  In order to solve the above problems, the wall connecting device according to the present invention employs the same structure as the pantograph jack as the wall connecting device that connects the wall surface and the scaffold. Thereby, a wider interval range can be connected by one type of wall connecting device than the conventional wall connecting device.

  In addition, by connecting the pantograph-type screw rod to the electric screwdriver, the wall can be connected easily and quickly.

  As described above, since the work scaffold and the wall surface are not connected linearly but by connecting them as a pantograph structure, a wider range of distances can be covered with one type of wall connection device. Can be handled without changing the components. For this reason, working efficiency is greatly improved.

  Moreover, if the wall joining apparatus according to the present invention is used, the length of the wall joining apparatus can be easily adjusted and attached with an electric drill or the like according to the distance from the scaffold to the wall surface, so that the work efficiency is further improved.

It is an Example of the conventional wall joining apparatus. It is the schematic which shows one Example of the wall joining apparatus which concerns on one Embodiment of this invention. It is the schematic at the time of connecting the shortest space | interval with the wall joining apparatus which concerns on one Embodiment of this invention. It is the schematic at the time of connecting the longest space | interval with the wall joining apparatus which concerns on one Embodiment of this invention. It is a figure which shows the example of the reinforcement structural member of the wall connection apparatus which concerns on one Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following, the range necessary for the description for achieving the object of the present invention is schematically shown, and the range necessary for the description of the relevant part of the present invention will be mainly described. It shall be by a well-known technique.

  FIG. 2 is a schematic view of a wall connecting device according to an embodiment of the present invention, in which a mast portion of a work scaffold and an anchor bolt or a wall fitting attached to a work wall surface are connected by the wall connecting device of the present invention. is there.

  The wall joining apparatus 1 of the present invention includes a wall attachment member 2 attached to a wall fitting A1 attached to a work wall surface A, a scaffold attachment member 3 attached to a work scaffold B, and a wall attachment member interposed between the two and three. 2 and link arm members 4, 5, 6, 7 for variably connecting the gap between the attachment member 3 and a screw member 8 for changing the link arm member.

  The link arm members 4 and 5 have one end in the longitudinal direction rotatably connected to the wall mounting member 2, and the other end of the link arm members 4 and 5 is one end in the longitudinal direction of the link arm members 6 and 7. Are connected to each other via connecting shafts 9 and 10. The other end portions of the link arm members 6 and 7 are rotatably connected to the scaffold attachment member 3.

  The connecting shaft 9 has a spiral hole in an axis perpendicular to the axis, and a screw member 8 is screwed into the connecting shaft 9. On the other hand, the connecting shaft 10 is fitted such that one end portion of a screw member 8 having an axis orthogonal to the axis is rotatable and cannot be relatively moved in the axial direction. Therefore, by rotating the screw member 8, both the connecting shafts 9 and 10 can be moved closer to and away from each other, whereby the wall mounting member 2 and the work attached to the work wall surface A by the link arm members 4, 5, 6, and 7 can be used. The distance from the attachment member 3 attached to the scaffold B can be changed. FIG. 4 is a schematic diagram showing the case where the longest intervals are thus connected.

  The screw member 8 is rotated by providing a through-hole 11 orthogonal to the axial direction at one end portion of the screw member 8 that is fitted so as not to be relatively movable in the axial direction, and inserting a handle 12 into the through-hole 11. be able to. Further, the handle 12 may be fixedly integrated with the screw member 8 in advance.

  The structure of the wall connecting device according to the present invention described above is the same structure as a so-called pantograph type jack, but it is not for supporting a heavy object like a jack, and the work scaffold B is attached to the work wall A. Since it is for fixing, the strength of each component of the wall splicing device 1 of the present invention does not need to be as strong as the component of the jack. That is, the above-described structure is adopted to realize the position fixing function instead of the weight support function.

  In the above description, the link arm members 4, 5, 6, and 7 have been described as flat plate structures. However, a U-shaped structure may be used for reinforcement, and a new link arm member 5 ′ is shown in FIG. 7 ′ and the connecting member 9 ′ are illustrated. As described above, various shapes of the components of the wall joining apparatus 1 according to the present invention are conceivable, and all of them are included in the inventive concept of the present invention.

  As described above, various changes and additions can be made within the scope of the technical idea of the present application.

  For example, in FIG. 3, the end of the screw member 8 that is fitted so as not to be relatively movable in the axial direction is the chuck structure 12 of the electric screwdriver, so that the screw member 8 is rotated by the electric screwdriver instead of the human power An example of improving efficiency is shown. This is also within the scope of the technical idea of the present application.

  Furthermore, if a universal joint is used for the chuck structure 12, the screw member 8 can be easily rotated from the work scaffold by changing the rotational axis direction of the screw member 8.

  As described above, according to the invention according to the present application, it is possible to cope with a wide range of intervals between the work wall surface and the work scaffold without changing the components of the apparatus. For this reason, several types of wall connecting devices having different connecting lengths have been prepared in the past. However, if the wall connecting device of the present invention is used, one type of wall connecting device can be used to improve work efficiency. it can.

  Furthermore, the invention according to the present application can be widely applied not only as a wall connecting device but also as a scaffold structural material for connecting scaffolds with different intervals.

DESCRIPTION OF SYMBOLS 1 ... Wall connection apparatus, 2 ... Wall attachment member, 3 ... Scaffold attachment member, 4 ... Link arm member, 5 ... Link arm member, 6 ... Link arm member, 7 ... Link arm member, 8 ... Screw member, 9 ... Connection Members 10, connecting members 11, through holes, 12 handles, 13 chuck structures

Claims (2)

  A wall mounting member attached to a part of the configuration of the work wall surface, a pair of first link arm members on which end portions of the wall mounting member are rotatably supported, and the other end portions of the pair of first link arm members A pair of second link arm members each having one end rotatably connected thereto, and a scaffold attachment member attached to the work scaffold for rotatably supporting each of the other ends of the pair of second link arm members. And a connecting shaft member rotatably disposed between connecting points of the pair of first link arm members and the pair of second link arm members, and having a spiral hole in an axis perpendicular to the rotation axis 1 and one end of a screw member having an axis orthogonal to the rotation axis includes a connecting shaft member 2 fitted so as to be rotatable and not capable of relative movement in the axial direction, and a screw member. Wall tethering device.   2. The wall joining apparatus according to claim 1, wherein one end of the screw member is structured to be connected to an electric screwdriver.

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