JPH0596304U - Elastic scaffolding board - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to an elastic scaffolding board that has high strength, less flexure and shaking, excellent stability, and is capable of performing work safely. [Structure] The present invention comprises a parent scaffolding board (1) configured in a hollow rectangular box body, and a child scaffolding board (2) freely stored in the parent scaffolding board (1) from one side. Child scaffolding board in a partially extracted state
Regarding an expandable scaffolding plate comprising a fixing means (5) for connecting and fixing (2) to the parent scaffolding board (1), the fixing means (5) are provided on the parent scaffolding board (1) at appropriate intervals. The retractable stopper pins (8) provided on the child scaffolding plate (2) can be inserted and inserted into the plurality of stopper holes (6), and the stopper pins (8) are used for projecting biasing force. It is characterized in that a spring (12) and an adjustment releasing metal fitting (9) are provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flexible scaffolding board having high strength, excellent stability, and safe work.

[0002]

[Prior Art]

 Conventionally, in a workplace where the scaffolding is unstable at a construction site, etc., a horizontally long scaffolding board is hung between the columns provided on both sides, and then work such as painting is performed.

[0003] The conventional scaffolding board is, for example, as shown in FIGS. 12 and 13, a plurality of square pipes for scaffolding arranged at regular intervals, and one end of which is fixed to a drain-like pipe portion 16. Square pipes are arranged alternately with respect to the pipe portion 16, and a telescopic pipe portion 17 having one end fixed is fitted.

In addition, the other end of the pipe portion 16 which is not fixed is fixed at the periphery by the band portion 18, and the expansion and contraction pipe portion 17 is arranged so as to project from the space surrounded by the pipe portion 16 and the band portion 18. Has been done. The other end of the expansion / contraction pipe portion 17 which is not fixed is penetrated and fixed together with the pipe portion 16 by a rod-shaped fixing pin 19.

When the scaffolding board is used, the expansion / contraction pipe portion 17 is extended and fixed by the fixing pin 19 as necessary to fix the size of the scaffolding, and then the work is performed.

[0006]

[Problems to be solved by the device]

 However, the conventional scaffolding plate has drawbacks such that when the expansion pipe portion 17 is extended, there is a gap in the scaffolding, so the strength is weak, and the tool etc. easily falls down through the gap. In addition, the center of the fixed part of the pipe part 16 and the pipe part 17 is not aligned, and since it is not a symmetrical type, it is easy to break the balance if an uneven load is applied to the scaffolding plate, and there is a large amount of bending when it is crossed over. However, there was a problem that it was dangerous because it could easily shake.

An object of the present invention is to provide a stretchable scaffolding plate that can solve the above problems.

[0008]

[Means for Solving the Problems]

 The present invention provides a parent scaffolding board configured in a hollow rectangular box body, a child scaffolding board stored in the parent scaffolding board freely extracted from one side, and a child scaffolding board in a partially extracted state. An elastic scaffolding plate comprising a fixing means for connecting and fixing to a plate is provided.

The fixing means allows the retractable stopper pins provided on the child scaffolding plate to be freely inserted into a plurality of stopper holes provided at appropriate intervals on the parent scaffolding plate, and The stopper pin is also equipped with a protrusion biasing spring and a fixing release adjustment metal fitting.

[0010]

[Action]

 Next, a method of using the scaffolding board of the present invention will be described.

First, at a construction site or the like, the scaffolding plate of the present invention is hung on the scaffolding to be worked, and the length required for the scaffolding plate is measured. Next, according to the length of the scaffolding, the child scaffolding plate is extracted in the longitudinal direction from one side of the parent scaffolding plate. At this time, the stopper pin provided on the child scaffolding plate is pulled out from the stopper hole of the parent scaffolding plate by pulling the end of the adjustment metal fitting projecting at one end of the child scaffolding plate to release the fixation. And then extract the child scaffolding board. Then, after extracting the child scaffolding board for the required length, separate the end of the adjustment metal fitting that was pulled and insert the stopper pin into the stopper hole of the parent scaffolding board to separate the parent scaffolding board and the child scaffolding board. Fix it.

Further, in order to move the fixed position, the end of the adjusting metal fitting is pulled in the same manner as described above to allow the stopper pin to escape from the fixed stopper hole of the main footboard while extracting the child scaffolding board. After adjusting the height, separate the ends of the adjustment fittings and re-fix the child scaffolding board and the parent scaffolding board.

The scaffolding board adjusted to the required length as described above is hung over the scaffolding, and the scaffolding board is put on the scaffolding board to perform the work.

Further, during storage and storage, the entire length of the child scaffolding plate is fixed by a stopper pin in the most compact state of being stored in the parent scaffolding plate.

[0015]

【Example】

 Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the drawings. As shown in FIG. 1, the scaffolding board A of the present invention is fixed to the scaffolding board B as shown in FIG. 2 after the child scaffolding board 2 is extracted from the parent scaffolding board 1 by the fixing means 5. 3 is a plan view showing the outer shape of the scaffolding board according to the embodiment of the present invention, FIG. 4 is a side view of the same, and FIG. 5 is a bottom view thereof.

As shown in FIGS. 1 and 3, the parent scaffolding plate 1 has a hollow rectangular box shape and is horizontally long. As shown in FIGS. 1 and 3, the outer surface of the upper wall corresponding to the tread plate has a suction cup shape as a slip stopper. Many concave and convex parts are provided. In addition, in the parent scaffolding board 1, a child scaffolding board 2 is freely extracted from one side of the same parent scaffolding board. The shape of the child scaffolding plate 2 is not particularly limited as long as it can be extracted and has a contact surface with the parent scaffolding plate 1 and can be fixed. However, the same shape as the parent scaffolding plate 1 is a hollow rectangular box shape. Therefore, the horizontally long shape is preferable in terms of stability and strength.

As shown in FIG. 7, the parent scaffolding board 1 and the child scaffolding board 2 are formed in a U-shape that is integral with each other, and a connecting member 1c is connected as a bottom surface to the parent scaffolding board 1. A slide piece 1a and a non-slip rubber 1b are provided on the inner wall surface of the scaffolding plate so that the child scaffolding plate 2 can be smoothly extracted and fixed from the parent scaffolding plate 1.

The material of the parent scaffolding plate 1 and the child scaffolding plate 2 is not particularly limited as long as it can be molded and has a sufficient strength as a scaffolding plate, but it is lightweight and easy to carry, and is made of aluminum material. Is preferred.

3 to 5 show a state in which the child scaffolding board 2 is stored in the parent scaffolding board 1 to the deepest position, the parent scaffolding board 1 has a handle 3b at one end, and the parent scaffolding board 1 has a handle 3b. A parent cover 3 with a handle is provided, which has a shape in which the end portion of 1 is tightly covered and is fixed to the parent scaffolding plate 1 at several points by a blind rivet 3a. A child cover 4 with a handle having the same structure as the parent cover 3 with a handle is provided at one end of the child scaffolding plate 2 protruding from the parent scaffolding plate 1 at the other end, and has a shape that is easy to carry. A side view of the child cover 4 with a handle is shown in FIG.

In the side view of FIG. 4, stopper holes 6 provided at regular intervals are shown in the parent scaffolding plate 1, and as shown in FIG. 8, the windows 2a and the stopper holes 6 provided in the child scaffolding plate 2 are shown. And the stopper pin 8 is penetrated therethrough by the fixing means 5, so that the child scaffolding plate 2 can be integrally fixed according to the extracted state from the parent scaffolding plate 1. ing.

Reference numeral 5 a is an operating metal fitting that forms a part of the fixing means 5 for fixing the child scaffolding board 2 to the parent scaffolding board 1, and has a shape in which the handle portion projects from the child scaffolding board 2 for easy gripping. is doing. The fixing means 5 is adjusted by using the operation fitting 5a to fix the stopper hole 6 of the parent scaffolding plate 1 and the window 2a of the child scaffolding plate 2. As shown in FIG. 3, the child scaffolding board 2 is fixed with the entire length of the child scaffolding board 2 stored in the parent scaffolding board 1 when moved and stored, and when extended and used, as shown in FIG. From the above, the child scaffolding board 2 is fixed in a state of being pulled out by the length to be extended.

The bottom view of FIG. 5 shows the bottom surface of the parent scaffolding plate 1, and the connecting members 1c are used at several points in a ladder shape in a direction perpendicular to the longitudinal direction of the parent scaffolding plate 1. However, it is okay, and if it is sufficiently reinforced, its shape is not particularly limited. The shape of the bottom surface of the child scaffolding board 2 also conforms to the shape of the parent scaffolding board 1.

As described above, the shape of the child scaffolding plate 2 may be such that the child scaffolding plate 2 can be housed in the parent scaffolding plate 1 and can project. When it is fixed to 1, if the main scaffolding plate 1 is divided into two with the longitudinal direction as the axis, the left and right centers must be at the same position, and must be balanced and stable.

Next, the fixing means 5 for fixing the child scaffolding plate 2 to the parent scaffolding plate 1 will be described.

9 to 11 are enlarged views of the expansion / contraction stopper portion constituting the fixing means 5.

First, as shown in the enlarged plan view of FIG. 9, a hollow box-shaped case 7 is fixed to the inner side wall of the child scaffolding plate 2, and the four corners of the case 7 are fixed to the side wall of the child scaffolding plate 2 with screws 7 a. Moreover, as shown in FIG. 10, a hole 7b for inserting the adjustment tool is formed in the front-rear direction between the case 7 and the side wall of the child scaffolding plate 2, and the hole 7b is formed in the hole 7b. A strip-shaped adjusting fitting 9 is slidably inserted in the front-rear direction at the end of the case 7.

Moreover, the tip of the adjustment fitting 9 is bent at a right angle to form the spring receiving portion 9a, and the spring 11 is interposed between the spring receiving portion 9a and the front side wall of the case 7, The adjustment tool 9 is constantly urged forward. Further, the base end of the adjusting fitting 9 is connected to the tip of the operating fitting 5a. Reference numeral 9b is a bracket portion in which the base end of the adjustment metal fitting 9 is continuously provided in a right angle direction, and 9c is a tightening screw for connecting the tip of the operation metal fitting 5a to the bracket portion 9b. In addition, a stopper pin 8 which can move forward and backward is loosely fitted in the center of the case 7 in the lateral direction, and the stopper pin 8 extends from a window 2a provided on the side wall of the child scaffolding plate 2 at the time of protrusion. The parent scaffolding plate 1 is configured so that it is inserted into and engaged with the stopper hole 6 provided in the side wall of the parent scaffolding plate 1 to fix the extracted position of the child scaffolding plate 2 extracted from the parent scaffolding plate 1.

As shown in FIG. 11, a guide pin 13 is vertically connected in the middle of the stopper pin 8, and the upper and lower ends of the guide pin 13 are located on the upper wall and the lower wall of the case 7. The stopper pin 8 is protruded from the guide elongated hole 7c formed in the above, and is configured to be accurately guided in the lateral direction by the guide pin 13 and the guide elongated hole 7c.

Further, a spring 12 for urging the stopper pin 8 to project outward is provided between the guide pin 13 connected to the stopper pin 8 and the inner wall of the case 7. .. Reference numeral 10 is a spring receiving washer interposed between the guide pin 13 and the spring 12.

Further, as shown in FIG. 9, an elongated hole 9 d is formed in the longitudinal direction at a substantially central portion of the adjustment fitting 9, and the stopper pin extends from the elongated hole 9 d to the side wall of the child scaffolding plate 2. The stopper pin 8 slides in the elongated hole 9d when the adjusting metal fitting 9 slides back and forth as shown in FIG. As a result, the stopper pin 8 and the adjusting fitting 9 do not interfere with each other.

At the upper and lower edges of the midway portion of the adjustment fitting 9, a contact plate 9e is continuously provided in a direction perpendicular to the main body of the adjustment fitting 9, and the contact plate 9e serves as the stopper pin 8e. Is formed in a trapezoidal shape that is inclined downward toward the guide pin 13 that is integrally connected to the.

Therefore, as shown in FIG. 10, by pulling the operation fitting 5 a in the front direction, the adjustment fitting 9 is slid in the front direction against the bias of the spring 11, so that the upper and lower ends of the adjustment fitting 9 are moved. The contact plate 9e protruding from the edge contacts the outer surface of the guide pin 13, that is, the surface opposite to the position of the spring 12, and in particular, the inclination of the contact plate does not contact the guide pin 13 while the guide pin 13 is in contact. 13 is slid inward against the spring 12, and the stopper pin 8 resists the spring 12 together with the guide pin 13 due to the contacting action of the contact plate 9e and the guide pin 13. As it retreats inward, it is withdrawn from the stopper hole 6 provided in the parent scaffolding plate 1, and the engagement of the expansion and contraction stoppers of the parent scaffolding plate 1 and the child scaffolding plate 2 is released. Then, the fixing member 9 releases the fixing state of the fixing means 5.

On the other hand, if the operation fitting 5 a and the adjustment fitting 9 are moved forward according to the bias of the spring 11, the contact plate 9 e of the adjustment fitting 9 is not in contact with the guide pin 13. In addition, the guide pin 13 is fitted together with the stopper pin 8 by the biasing force of the spring 12 so that the tip end of the stopper pin 8 is inserted into the window 2a of the child scaffolding plate 2 from the long hole 9d of the adjustment fitting 9 and the parent scaffolding plate 1 is inserted. As shown in FIG. 8, the child scaffolding plate 2 extracted from the parent scaffolding plate 1 is extracted and fixedly coupled at the position as shown in FIG.

As described above, in the extendable scaffolding plate of the present invention fixed by the expansion / contraction stopper, the parent scaffolding plate and the child scaffolding plate can be securely fixed, and the fixed position can be easily moved. Is.

[0035]

[Effect of the device]

 In the present invention, since the scaffolding board is shaped like a box, it has less twist and is stronger. Further, since the tread surface of the scaffolding plate is formed into an integral plate shape, there is no gap, and there is an advantage that tools and the like are difficult to move down.

Furthermore, since the left and right centers do not shift when the scaffolding plate is extended, there is stability, less bending and shaking, and safe work can be performed.

Further, as a fixing means for fixing the child scaffolding board in a state of being extracted from the parent scaffolding board, the child scaffolding board is provided with a plurality of stopper holes provided at appropriate intervals in the parent scaffolding board. A stopper pin that can be retracted and retracted is also inserted, and a spring for urging the protrusion and an adjustment metal fitting for fixing release are provided on the stopper pin, so that it can be securely fixed, and Fixed operation by remote control is also possible.

[Brief description of drawings]

FIG. 1 is a perspective view showing a scaffolding board according to the present invention.

FIG. 2 is a side view showing a use state of the scaffolding plate according to the present invention.

FIG. 3 is a plan view showing an outer shape of a scaffolding board according to the present invention.

FIG. 4 is a side view showing the outer shape of the scaffolding board according to the present invention.

FIG. 5 is a bottom view showing the outer shape of the scaffold plate according to the present invention.

FIG. 6 is a side view showing the outer shape of the child scaffolding board.

7 is a cross-sectional view taken along the line I-I of FIG.

FIG. 8 is a sectional view of a telescopic stopper.

FIG. 9 is an enlarged plan view of a telescopic stopper.

10 is a sectional view taken along line II-II of FIG.

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

FIG. 12 is a plan view illustrating a conventional technique.

FIG. 13 is a side view illustrating a conventional technique.

[Explanation of symbols]

 1 Parent scaffolding board 2 Child scaffolding board 5 Fixing means 6 Stopper hole 8 Stopper pin 9 Adjustment fitting 12 Projection biasing spring

Claims (2)

[Scope of utility model registration request] 1. A parent scaffolding plate configured in a hollow rectangular box body.
(1), the child scaffolding board (2) freely extracted from one side and stored in the parent scaffolding board (1), and the child scaffolding board (2) in a partially extracted state, the parent scaffolding board (1) An elastic scaffolding board consisting of a fixing means (5) for connecting and fixing to a scaffold. 2. The fixing means (5) comprises a plurality of stopper holes (6) provided in the parent scaffolding plate (1) at appropriate intervals.
The stopper pin (8) that can be retracted and attached to the child scaffolding plate (2) can be inserted and fitted into the child scaffolding plate (2), and the stopper pin (8) also has a protrusion biasing spring (12) and an adjustment for unlocking. Metal fittings
The stretchable scaffolding plate according to claim 1, further comprising (9).