JP2939183B2 - Fixture for temporary stairs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for a temporary staircase in which the tip side of a temporary staircase is fixed to a building side.

[0002]

2. Description of the Related Art Conventionally, as a temporary staircase in which the front end side can be fixed to a building side, Japanese Utility Model Laid-Open Publication No. 3-48053 published before the filing of the present application discloses "a plurality of steps spanning a pair of frames. And the upper and lower fixing brackets rotatably attached to the upper and lower ends of the pair of frames, and having nail holes formed at the center of the conical portion in the flat plate portion, and detachable to one of the pair of frames. Handrails that are freely fixed,
Temporary stairs consisting of In such a temporary staircase, the width of the step is widened so that the step can be surely ridden when ascending and descending, so that the step is leaned horizontally.

[0003] However, while the floor height of the building varies depending on the site, the temporary stairs have a predetermined standing height. When the building is used for a building of another floor height, the tip of the temporary stairs protrudes from the upper floor. Since the state or the level of the upper floor is not reached, the upper bracket is useless, but if the inclination angle of the stairs is changed to make use of the upper bracket, the steps will not be horizontal and it is extremely dangerous, Therefore, if it is short, it is necessary to exchange food between the lower fixing bracket and the lower floor, and if it is longer, it is necessary to exchange food between the upper fixing bracket and the upper floor, and the installation work is extremely troublesome. Was.

[0004]

SUMMARY OF THE INVENTION The present invention is to provide a temporary staircase fixing tool which can stand a temporary staircase according to the site regardless of the floor height so that the steps become horizontal. is there.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the problem that a fixing bracket fixed to the upper end of a temporary staircase based on the prior art cannot cope with a building having a floor height other than the standing height of the temporary staircase. Stand the temporary stairs so that the steps are horizontal, fit the mountings of the fixtures on the upper ends of the side rods from above, place the base end of the fixing plate between the pair of side plates of the mountings, and place the side plates together. The bolt is inserted through the insertion hole formed on the distal end side of the bolt and the bolt insertion tube provided on the base end side of the fixing plate, and the nut is screwed into the protruding end of the bolt, or the fixing plate is arranged on the outer surface of the mounting body. At the same time, the bolt is inserted through the insertion hole and the bolt insertion hole penetrating through the base member of the fixing plate, and the nut is screwed into the protruding end of the bolt. After moving the fixture until it is close to It is fixed to the rod, nail, by driving the building side screws or the like through fixing holes in the front part, a temporary stairway with a fixed can as to the building side, is obtained by solving cents above problems.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. Reference numeral 1 denotes a fixture which is detachably attached to one or both of side bars B and Ba of a temporary staircase A. Mounting body 2 that can be adjusted and fixed freely with respect to B and Ba
And a fixing plate 3 which is attached to the mounting body 2 so as to swing up and down or rotate freely.

The mounting body 2 is a U-shaped plate having a pair of side plates 4 and 4a separated by the same dimension as the thickness of the side rods B and Ba, and through holes 5 and 5a are formed at the distal ends of the side plates 4 and 4a. And the insertion hole 5,
A bolt 6 is inserted through 5a, and a nut 7 is screwed into a protruding end of the bolt 6, and the side plates 4, 4a are screwed into the nut 7.
The space is narrowed and the side plates 4 and 4a sandwich the side bars B and Ba so that the fixture 1 is fixed to the side bars B and Ba.

[0008] The fixing plate 3 is a tip side member 8 for fixing to a building,
An intermediate member 9 continuously formed at a proximal end of the distal member 8 at a gentle inclination with respect to the distal member 8, and a vertical continuous with the distal member 8 at a proximal end of the intermediate member 9. The formed base end member 10 is formed in a substantially L-shaped bent plate shape.

A plurality of fixing holes 11, 11a,... Are formed in series at the center line in the longitudinal direction of the front end member 8 of the fixing plate 3, and the insertion portion 12 of the bolt 6 is inserted into the other base end member 10. The insertion portion 12 is formed by bending the end portion of the base member 10 into a round shape, and a bolt insertion tube long in the width direction of the base member 10 is formed.
13 or a bolt insertion hole 14 penetrating the center of the base end member 10.

Then, as shown in FIG. 1, the fixing plate 3 is disposed between the side plates 4 and 4a, and the bolt 6 is connected to the bolt insertion tube 13
The fixing plate 3 is attached to the mounting body 2 with the bolt 6
2 or the fixing plate 3 is disposed outside one of the side plates 4 and 4a as shown in FIG. Is passed through the bolt insertion hole 14 of the fixing plate 3 and the nut 7 is screwed into the fixing member 1.

Next, the operation of the fixture for temporary stairs according to the present invention will be described. First, the temporary stairs A are leaned so that the steps S, Sa. Externally fitted to rods B and Ba from above.

Next, in the case of the fixture 1 shown in FIG. 1, the fixing plate 3 is arranged between the side plates 4 and 4a of the mounting body 2 and the bolts 6 are inserted through the insertion holes 5, 5a and the bolt insertion cylinder 13. A nut 7 is screwed into the protruding end of the bolt 6, and in the case of the fixing tool 1 shown in FIG. 2, the fixing plate 3 is arranged outside one side of the mounting body 2, and the insertion holes 5, 5 a and the bolt insertion are provided. Bolt 6 in hole 14
And the nut 7 is screwed into the protruding end of the bolt 6.

Then, after moving the fixing tool 1 until the entire distal end member 8 of the fixing plate 3 is in close contact with the fixing surface of the standing portion on the building side, the nut 7 is tightened to move the fixing tool 1 to the side rod B, While fixing to Ba, nails, screws, etc. are fixed to the fixing holes 11, 11
a Temporary stairs A are fixed to the building side by driving into the building side.

More specifically, an example will be described. When the fixing tool 1 shown in FIG. 1 is attached to a portion where the upper end side of the temporary staircase A protrudes from the upper floor, as shown in FIG. The fitting 2 is externally fitted to the protruding end of the fixing plate 3 from above, and the bolt insertion tube 13 at the upper end of the base member 10 is aligned with the insertion holes 5 and 5a with the back surface of the distal member 8 facing down. 4,
4a, the fixing plate 3 is attached to the mounting body 2 with the bolts 6 and the nuts 7, and the entire back surface of the distal end member 8 of the fixing plate 3 is brought into contact with the upper floor, and the nut 7 is tightened and fixed. Fixing tool 1 to temporary stairs A,
The fixing plate 3 is fixed to the building by means of 5, 15a, that is, the temporary stairs A are fixed to the building.

When the driving fixtures 15, 15a... Cannot be driven into the upper floor, or when the fixing tool 1 cannot be attached to the protruding ends of the side rods B and Ba, as shown in FIG. Side rod B,
The mounting body 2 is externally fitted to the lower part of the upper floor surface of Ba from above, the back surface of the tip side member 8 of the fixing plate 3 faces the front of the standing part on the building side, and the fixing plate 3 is attached to the mounting body 2. The bolt insertion tube 13 at the upper end of the base end member 10 is positioned between the side plates 4 and 4a so as to match the insertion holes 5 and 5a so that the fixing plate 3 is suspended by the bolts 6 and the nuts 7. The fixing member 1 is fixed to the temporary stairs A by attaching the fixing member 1 to the temporary stairs A by mounting the fixing member 1 on the temporary stairs A by mounting the fixing member 1 on the mounting member 2 and bringing the entire back surface of the distal end member 8 of the fixing plate 3 into contact with the beam front surface. 15a, the fixing plate 3 is fixed to the building side, that is, the temporary stairs A are fixed to the building side.

Alternatively, as shown in FIG.
The mounting body 2 is externally fitted from above, the fixing plate 3 is arranged on the outer surface side of the mounting body 2, and the fixing plate 3 is mounted on the outer side of the mounting body 2 with bolts 6 and nuts 7, and the tip of the fixing plate 3 The back of the side member 8 is brought into contact with the front of the standing portion on the building side, and the nut 7 is tightened to fix the fixture 1 to the temporary staircase A,
The fixing plate 3 is fixed to the building side by the driving fixed bodies 15, 15a..., That is, the temporary stairs A are fixed to the building side.

Next, when the upper end of the temporary staircase A does not reach the upper floor, as shown in FIGS. 7 and 8, the temporary staircase A is fixed to the standing part on the building side in the same manner as in FIGS. When the upper ends of the side rods B and Ba hang on the lower part of the front of the standing part on the building side, the fixing is mainly performed by the method shown in FIG. I have to.

[0018]

In short, according to the present invention, the mounting member 2 is provided on one or both of the pair of side rods B and Ba in the temporary staircase A so as to be adjustable in position and fixed.
Can be attached to any position of the side rods B and Ba.
Can be leaned while the steps S, Sa... Are horizontal.

Further, since the base end side of the bent plate-shaped fixing plate 3 is rotatably mounted on the mounting body 2 so that the fixing plate 3 can be swung up and down with respect to the mounting body 2, in short, the fixing plate Since the base end of the fixed plate 3 is not positioned on the extension of the distal end member 8 of the third fixed member 3, if the bent portion is located below both ends of the fixed plate 3, as shown in FIG. The upper surface, that is, the upper floor of the building, can be brought into close contact with the back surface of the distal end member 8 of the fixed plate 3, and if the bent portion is located above both ends of the fixed plate 3, as shown in FIGS. In this manner, the back surface of the distal end member 8 of the fixing plate 3 can be brought into close contact with the front surface of the upright portion.

Alternatively, the fixed plate 3 in the shape of a bent plate is mounted on one of the two side surfaces of the mounting body 2 so as to be rotatable around the center of the base end member 10 of the fixed plate 3. The distal end member 8 of the plate 3 is in an outwardly protruding state, so that the rear surface of the distal end member 8 of the fixed plate 3 can be brought into close contact with the front surface of the standing portion as shown in FIGS.

Further, since the mounting body 2 is a U-shaped plate having a pair of side plates 4 and 4a, the mounting body 2 can be externally fitted to the side bars B and Ba of the temporary stairs A that are erected from above. ,
The side plates B and Ba can be sandwiched between the side plates 4 and 4a.
Since the bolt 6 is inserted through the nut 6 and the nut 7 is screwed into the protruding end of the bolt 6, the fixing tool 1 can be fixed and movable by tightening and loosening the nut 7 with respect to the bolt 6.

Further, since the fixing plate 3 has a substantially L-shaped plate shape, the fixing plate 3 in which the base end of the fixing plate 3 is not positioned on the extension of the distal end side member 8 can be easily manufactured. Since the fixing holes 11, 11a... Are provided in the distal end side member 8 of the plate 3, the fixing plate 3, that is, the fixing tool 1 can be easily driven into the fixed members 15, 15a such as nails and screws.
.. Can be easily fixed to the building side, and the base plate 10 of the fixing plate 3 is provided with the insertion portion 12 for the bolt 6, so that the fixing plate 3 can be detachably attached to the mounting body 2. Therefore, the fixture 1 can be attached after the provisional stairs A are installed, and the fixing means for attaching the fixing plate 3 to the attachment 2 is the bolt 6 and the nut 7. It can be made easier.

Further, since a bolt insertion tube 13 long in the width direction of the base member 10 is provided at the end of the base member 10 as the insertion portion 12, the bolt 6 passing through the bolt insertion tube 13 is provided. The fixing plate 3 can be freely pivoted up and down around the center, and the fixing plate 3 can be attached to and detached from the mounting body 2, and the substantially L-shaped fixing plate 3 can be bent downward. If it is attached so as to come, it can correspond to a horizontal fixing surface, and if it is mounted in an inverted state, the fixing device 1 can correspond to a vertical fixing surface. It is possible to correspond to two types of fixing surfaces, and since the bolt insertion portion 12 is the bolt insertion tube 13, the bolt 6
Most of the intermediate part in the above is inserted into the bolt insertion tube 13 to improve the integrity of the mounting body 2 and the fixing plate 3 in the mounting state, so that the temporary staircase A is fixed in a stable state. Can be done.

Further, since the bolt insertion hole 14 is formed in the base end side member 10 as the insertion portion 12, the fixing plate 3 can be freely rotated around the bolt 6 passing through the bolt insertion hole 14, and the mounting member can be mounted. The attachment and detachment of the fixing plate 3 to and from the fixing plate 2 can be realized.

Further, as an insertion portion 12, a bolt insertion tube 13 which is long in the width direction of the base member 10 is provided at an end of the base member 10, and a bolt insertion hole 14 is formed in the base member 10. Since the fixing plate 3 is penetrated, a pattern for arranging the fixing plate 3 so as to be able to swing up and down with respect to the mounting body 2 and a pattern for arranging the fixing plate 3 to be rotatable on one of both side surfaces of the mounting body 2 are one. Fixture 1
Therefore, regardless of the site in any situation, the temporary stairs A can be fixed to the building side by attaching the fixing plate 3 to the attachment body 2 in accordance with the site situation. The practical effects are extremely large.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a fixture for temporary stairs according to the present invention.

FIG. 2 is an exploded perspective view of another pattern of FIG. 1;

FIG. 3 is a partial side view showing a use state of a temporary staircase fixture.

FIG. 4 is an enlarged view of a main part of FIG. 3;

FIG. 5 is an enlarged view of a main part showing a use state of another embodiment of the fixture for temporary stairs.

FIG. 6 is an enlarged view of a main part showing a use state of another embodiment of the fixture for temporary stairs.

FIG. 7 is an enlarged side view of a main part showing a use state of the temporary staircase fixing device in a case where the temporary staircase does not reach the upper floor.

FIG. 8 is an enlarged side view of a main part of another embodiment of FIG. 7;

[Explanation of symbols]

 2 Mounting body 3 Fixing plate 4, 4a Side plate 5, 5a Insertion hole 6 Bolt 7 Nut 10 Base end member 12 Insertion site 13 Bolt insertion tube 14 Bolt insertion hole A Temporary staircase B, Ba side rod

Claims (6)

(57) [Claims] An attachment is provided on one or both of a pair of side rods in a temporary stair so as to be freely adjustable and fixed, and a base end side of a bent plate-like fixed plate is rotatably attached to the attachment. And a fixing plate for a temporary staircase, wherein the fixing plate is vertically swingable with respect to the mounting body. 2. An attachment body is provided on one or both of a pair of side rods in the temporary stairs so as to be position-adjustable and fixable, and a bent plate-like fixed plate is provided on one of the side surfaces of the attachment body. A fixing device for a temporary staircase, wherein the fixing device is mounted so as to be rotatable around a central portion of a base end side member. 3. The mounting body is a U-shaped plate having a pair of side plates, a bolt is inserted through an insertion hole penetrating through a tip of the side plate, and a nut is screwed into a protruding end of the bolt. 3. The temporary staircase according to claim 1, wherein the fixing plate is substantially L-shaped, a fixing hole is provided in a distal end member of the fixing plate, and a bolt insertion portion is provided in a base end member. Fixture. 4. An insertion portion at an end of a base side member,
The fixing tool for a temporary staircase according to claim 3, wherein a long bolt insertion cylinder is provided in a width direction of the base end side member. 5. The temporary staircase fixing device according to claim 3, wherein a bolt insertion hole is provided through the base end member as an insertion portion. 6. As an insertion portion, at an end of a base end member,
4. The temporary staircase fixing tool according to claim 3, wherein a bolt insertion tube that is long in the width direction of the base end member is provided, and a bolt insertion hole is formed through the base end member.