JP4164594B2 - Wall presser for building scaffolding - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wall presser in a building scaffold.
[0002]
[Prior art]
Conventionally, various types of wall press devices that prevent a scaffold installed so as to face a wall of a building with a predetermined interval from falling on the wall side and leaning on the wall are known. A movable bar is telescopically attached to a fixed bar passed to the front and rear struts of the required height, and the movable bar is always urged to protrude outward by a spring, and the movable bar is predetermined by lever operation. It was supposed to stop at a position protruding from the length.
[0003]
[Problems to be solved by the invention]
However, the conventional wall pressing device has a spring and an operation lever, has a complicated structure, is troublesome to operate, and has a large number of parts, resulting in poor productivity and high manufacturing cost. There was a problem.
[0004]
The object of the present invention is to solve the above-mentioned problems of the prior art, and it is possible to extend, fix, and release with one operation of a tightening nut, which is excellent in operability, and has a small number of parts, thereby improving productivity. An object of the present invention is to provide a wall-holding device in a building scaffolding that can reduce the manufacturing cost.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a wall press device in a building scaffold according to the present invention is an outer cylinder that is passed to front and rear columns of a required height of a scaffold installed so as to face a wall of a building at a predetermined interval. The body, a fixed receiver fixed to the outer surface of the left wall of the rear end of the outer cylinder and pressed against the rear column, and attached to the outer surface of the left wall of the outer cylinder near the front end so as to be movable back and forth. A movable holder that is pressed against the front strut, and an inner cylinder for wall presser that is slidably housed inside the outer cylinder, can protrude to the required length on the wall side of the building, and has a wall pad at the tip And an inner enlarged groove is provided in the left side wall portion of the inner cylinder for wall pressing over the entire length of the inner cylinder, and the left side wall near the front end of the outer cylinder has a long length in the longitudinal direction of the outer cylinder. There is a hole, and the bolt insertion hole faces the long hole on the right side wall of the outer cylinder. The bolt shaft inserted into the outer cylinder through the bolt insertion hole on the right side wall of the outer cylinder passes through the long hole on the left wall of the outer cylinder, and the mounting base of the movable receiver A tightening nut is screwed onto the outer end of the bolt that is inserted through the through-hole provided on the outer surface and protrudes outward from the mounting base of the movable metal receiver, and the head of the bolt is located on the left side wall of the inner cylinder for wall presser It is housed in a non-rotatable manner in the internal enlarged groove of the outer part, the fixed receiver at the rear end of the outer cylinder is pressed against the rear column, and the movable receiver near the front end of the outer cylinder is pressed against the front column. The tightening nut must be screwed with the wall pad at the tip of the wall presser inner cylinder pressed against the front end of the outer cylinder pressed against the outer surface of the building wall. Therefore, the outer cylinder, the inner cylinder for wall presser, and the movable metal receiver can be combined. It is characterized in that.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0007]
In this specification, front and rear, left and right are based on FIG. 2, front means the left side of FIG. 2, rear means the same right side, left means the lower side of the figure, and right means the same upper side. And
[0008]
First, referring to FIG. 1, a building scaffold (2) installed so as to face a building wall (1) with a predetermined interval is divided into a plurality of pairs of front and rear columns (3) and a rear column. At the required height of the inclined pedestal (4) that supports (3) from the outside, the many pedestals (5) passed between the front and rear columns (3) and (3), and the scaffold (2) Horizontally arranged two-level scaffolding plate (6), multiple braces (7) that connect the left and right footrests (5) and (5) to each other, and the rear strut (3 ) And the brace (8) passed between the pedestal (4), and the wall presser of the present invention is attached to the pair of front and rear supports (3) (3) at the top of the scaffold (2). The device (10) is delivered and installed.
[0009]
The column (3) in this embodiment is configured by a ribbed tube having a cross-sectional shape close to a circular tube, which will be described later, and the pedestal (4) and the brace (8) are each formed by a square tube, (5) consists of a circular tube. These scaffold components are all made of extruded aluminum (including aluminum alloy).
[0010]
Next, the wall pressing device (10) of the present invention will be described in detail with reference to FIGS.
[0011]
The wall presser device (10) of the present invention is passed to the front and rear struts (3) (3) at the top of the scaffolding (2) installed so as to face the wall (1) of the building at a predetermined interval and A cylindrical outer cylinder (11) and a left end wall (11a) of the rear end of the outer cylinder (11) fixed by welding to the outer surface and pressed against the rear column (3) (31) (Fixed bracket) and a movable bracket (movable bracket) that is attached to the outer surface of the left wall (11a) near the front end of the outer cylinder (11) so that it can be moved back and forth and pressed against the front strut (3) ( 32) and a wall made of a rectangular tube that is slidably housed inside the outer cylinder (11), can protrude to the required length on the wall (1) side of the building, and has a wall pad (22) at the tip And an inner cylinder (extensible leg) (21) for pressing.
[0012]
In this embodiment, the outer cylinder (11) and the wall pressing inner cylinder (21) are made of an extruded aluminum material having a required length, and the fixed metal receiver (31) and the movable metal receiver (32) are required. It is made from a piece of aluminum extruded profile having a width. The wall pad (22) is made of hard synthetic resin or synthetic rubber, and the pad (22) is attached to the front end portion of the inner cylindrical body (21) and is attached by a machine screw (19).
[0013]
The left wall (11a) near the front end of the outer cylinder (11) is provided with a long hole (12) that is long in the longitudinal direction of the outer cylinder (11), and the right side of the outer cylinder (11). A bolt insertion hole (13) is formed in the wall (11b) so as to face the long hole (12). A large number of reinforcing protrusions (14) are provided on the upper and lower surfaces of the outer cylinder (11) in the longitudinal direction of the outer cylinder (11).
[0014]
On the other hand, the left side wall portion (21a) of the wall pressing inner cylinder (21) is provided with an internal enlarged groove (23) for non-rotatably holding the bolt head (15a) over the entire length of the inner cylinder (21). Yes. In this embodiment, the upper and lower side walls (23a) (23a) inside the opening (24) of the internal enlarged groove (23) are provided with stepped portions (25) and (25) for storing a wide spring washer. A space (26) is formed. Further, a stopper (27) for retaining is fixed to the rear end portion of the inner cylinder (21) in a state of being fitted inside the inner enlarged groove (23). A reinforcing wall portion (28) is provided between the bottom wall portion (23b) of the internal enlarged groove (23) and the right side wall portion (21b) of the inner cylinder (21). The convex arcs (29) having a small cross section provided on the outer wall surface of the inner cylinder (21) in the longitudinal direction are for reducing frictional resistance during sliding.
[0015]
The fixed receiver (31) protrudes from the left side wall portion (11a) of the rear end portion of the outer cylinder (11) by a flat plate-like base portion (31a) fixed to the outer surface by an intermediate portion of the length. And it is comprised by the reverse substantially L-shaped hook part (31b) seeing from the plane extended toward the back from the left. The movable metal receiver (32) has a symmetrical shape with respect to the fixed metal receiver (31) and projects from the flat base (32a) and the middle part of the plate and from the left to the front. It is constituted by a substantially L-shaped hook portion (32b) as seen from the extending plane. Further, a bolt hole (33) is formed in a portion near the rear end of the base (32a) of the movable receiver (32).
[0016]
The bolt (15) and the spring that is fitted on the bolt shaft (25b) from the bolt insertion hole (13) of the right side wall (11b) of the outer cylinder (11) to the inside of the outer cylinder (11) A washer (17) is fitted, and the bolt shaft (25b) is projected to the left outside through the long hole (12) in the left wall (11a) of the outer cylinder (11). It is inserted through a through hole (33) provided in the attachment base (32a) of (32). However, since the bolt head (15a) and the spring washer (17) are sized so as not to pass through the long hole (12) of the left outer wall (11a) of the outer cylinder, they are inside the outer cylinder (11). Exists. The bolt head (15a) is non-rotatably accommodated in the inner enlarged groove (23) of the left side wall (11a) of the wall pressing inner cylinder (21), and the spring washer (17) is arranged in the inner enlarged groove (23 ) In the spring washer storage space (26) inside the opening (24). Also, a flat washer (18) is fitted on the outer end of the bolt shaft (15b) protruding outward from the mounting base (11a) of the movable receiver, and a tightening nut (16) made of a wing nut is fitted. Screwed together.
[0017]
When combining the components of the wall pressing device (10) of the present invention, first, the bolt insertion hole (in the right wall portion (11b) of the outer cylindrical body (11) to which the fixed metal receiver (31) is attached ( 13) to the bolt (15) and the spring washer (17) are fitted inside the outer cylinder (11), and the bolt shaft (25b) is inserted into the long hole (11a) on the left side wall (11a) of the outer cylinder (11). 12) Protrude left outside through. The bolt head (15a) and the spring washer (17) are present inside the outer cylinder (11). Next, in this state, from the rear end opening of the outer cylinder (11), insert the front end of the inner cylinder (21) with stopper (27) to which the pad (22) is not attached, The bolt head (15a) in the body (11) is slid into the internal enlarged groove (23) of the inner cylinder (21) to be stored in a non-rotatable manner, and the spring washer (17) is placed in a wide storage space ( 26) Slide it inside. Furthermore, the through hole in the mounting base (32a) of the movable receiver (32) is inserted into the bolt shaft (25b) protruding outward through the long hole (12) in the left side wall (11a) of the outer cylinder (11). (33) is fitted, and a plain washer (18) is fitted on the outer end portion of the bolt shaft portion (15b) protruding outward from the through hole (33), and the tightening nut (16) is screwed together. Finally, a pad (22) is fitted over the front end of the inner cylinder (21) protruding forward from the front end of the outer cylinder (11), and fixed with a machine screw (19), so that the wall The combination of the components of the presser device (10) is completed.
[0018]
In addition, as shown in FIG. 2, the support | pillar (3) is comprised by the pipe | tube with a rib which has a cross-sectional shape close | similar to a circular pipe. That is, the column (3) includes a flat wall portion (36) extending in the longitudinal direction, a curved wall portion (37) connected to both side edges thereof and having an arc shape larger than a semicircular cross section, and a flat wall portion. A rib (38) is provided at the center of the width of (36) so as to protrude outward and extend in the longitudinal direction, and has a cross-sectional shape close to that of a circular tube. The distance between the tip of the rib (38) of the column (3) and the center of the curved wall (37) of the column (3) is equal to the radius of the circular cross section of the curved wall (37) It has been. Of course, the support column (3) may be formed of a normal circular tube or square tube.
[0019]
Next, a method of using the above-described wall presser device (10) of the present invention will be described.In the upper part of the scaffold (2) installed so as to face the wall (1) of the building at a predetermined interval, a pair of front and rear The wall holding device (10) is passed between the support posts (3) and (3) of the two, and first, the outer cylindrical body (11) of the fixed end (31) of the rear end of the outer cylindrical body (11) is an inverted substantially L-shaped hook portion (31b ) Against the rear column (3) from the front side. Next, the wall pressing inner cylinder (21) is projected from the front end of the outer cylinder (11) to a required length, and the wall pad (22) at the tip is pressed against the outer surface of the building wall (1). In this state, the substantially L-shaped hook part (32b) of the movable metal receiver (32) near the front end of the outer cylindrical body (11) is pressed against the front column (3) from the rear side, and finally the tightening nut The outer cylinder (11), the movable receiver (32), and the wall pressing inner cylinder (21) are integrally coupled by screwing (16).
[0020]
In this way, the wall presser inner cylinder (21) of the wall press device (10) can be expanded, fixed, and released simply by screwing and unscrewing by tightening the tightening nut (16) together, Therefore, the operability is excellent, and the wall presser (10) can be secured between the pair of front and rear columns (3) and (3) of the scaffold (2) with good workability.
[0021]
When removing the wall retainer (10), which is secured between the front and rear struts (3) and (3) of the scaffold (2) as described above, from the front and rear struts (3) and (3) of the scaffold (2). The operation may be performed by reversing the above procedure.
[0022]
In addition, one or more, preferably at least two wall-holding devices (10) according to the present invention are attached to the building scaffold (2). Thereby, it is possible to reliably prevent the building scaffold (2) from leaning on the wall (1) side of the building and leaning on it.
[0023]
【The invention's effect】
According to the present invention, according to the above, according to the wall press device in the building scaffold of the present invention, at the required height of the scaffold installed so as to face the wall of the building at a predetermined interval, Press the fixed receiver at the rear end of the outer cylinder against the rear column, project the inner cylinder for wall pressing from the front end of the outer cylinder, and press the wall pad at the end against the outer surface of the building wall At the same time, by tightening the tightening nut with the movable support near the front end of the outer cylinder pressed against the front column, the outer cylinder, the inner cylinder for wall pressing, and the movable support are integrated. Since it can be connected, the inner cylinder of the wall presser can be expanded, fixed, and released simply by tightening and unscrewing the nut by tightening the tightening nut. A wall-holding device was constructed between a pair of struts before and after the scaffold. Can stop passing sex well, yet fewer components, it is possible to improve productivity, an effect that may reduce the manufacturing cost.
[Brief description of the drawings]
FIG. 1 is a side view of a building scaffold comprising the product of the present invention.
FIG. 2 is a partially cutaway enlarged plan view of the product of the present invention attached to the front and rear columns of the scaffold.
FIG. 3 is an enlarged cross-sectional view taken along the line AA of FIG.
FIG. 4 is an enlarged exploded perspective view of a main part of the product of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Building wall 2 Scaffolding 3 Support | pillar 11 Outer cylinder 31 Fixed metal 11a Left side wall part 11b Right side wall part 12 Long hole 13 Bolt insertion hole 15 Bolt 15a Bolt head part 15b Shaft part 16 Tightening nut 21 Inner cylinder for wall pressing Body 21a Left side wall portion 22 Wall pad 23 Internal enlarged groove 32 Movable metal receiver 32a Mounting base 33 Through hole

Claims (1)

The outer cylinder passed to the front and rear struts of the required height of the scaffold installed so as to face the building wall with a predetermined interval, and the rear strut fixed to the outer surface of the left wall at the rear end of the outer cylinder Fixed receiver that is pressed against the front, a movable receiver that is attached to the outer surface of the left side wall near the front end of the outer cylinder so as to be movable back and forth, and that is pressed against the front column, and slidable inside the outer cylinder A wall-holding inner cylinder that is housed and can project a required length on the wall side of the building and has a wall pad at the tip, and an inner expansion groove is formed in the left wall of the wall-holding inner cylinder A long long hole in the longitudinal direction of the outer cylinder is provided in the left side wall near the front end of the outer cylinder, and a bolt insertion hole is opposed to the long hole in the right wall of the outer cylinder. And is inserted into the outer cylinder from the bolt insertion hole on the right side wall of the outer cylinder. The outer end of the bolt is inserted into the through hole provided in the mounting base of the movable receiver through the long hole in the left side wall of the outer cylinder, and protrudes outward from the mounting base of the movable receiver. A tightening nut is screwed onto this part, and the head of the bolt is non-rotatably accommodated in the internal enlarged groove on the left side wall of the wall presser inner cylinder. The front end of the inner cylinder for wall pressing, in which the gold is pressed against the rear strut and the movable receiving part near the front end of the outer cylinder is pressed against the front strut and the required length protrudes from the front end of the outer cylinder When the wall pad is pressed against the outer surface of the building wall, the tightening nut is screwed, so that the outer cylinder, the inner cylinder for holding the wall, and the movable support are combined. A wall presser in a building scaffold, characterized in that

Images