JPH10273970A - Bridge device for surmounting veranda or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bridge device for surmounting a veranda or the like, which can flexibly cope with conditions of verandas and relationship with prefabricated scaffolds. SOLUTION: A handrail frame is formed of a closed frame extending from a substantially intermediate part of a lower horizontal sash bar fixed between vertical frames 3 of a prefabricated scaffold 2 at opposite ends by means of clamps, to the upper part within a one end side range. A bridge 7 is composed of a telescopic ladder frame 15 located on the room side and a ladder frame 16 located the outside of the room, between which a rise-up wall of a veranda or the like, both ladder frames 15, 16 are pivotally connected at their upper parts to each other so that it can be folded and opened widely. The ladder frame 16 located on the room side is provided with an attachment for fixing itself to the lower horizontal sash bar of the handrail frame, a foot board 9 is pivotally attached to the ladder frame 16 so as to be vertically rotatable, and is disconnectably attached to the ladder frame 15. Coupling means for opposite for both ladder frames are provided in the closed frame and the ladder frame 15 located in the room side, and the foot board 9 is fixed between the vertical frames 3 of the prefabricated scaffold 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bridge device which is used by a worker to climb over a rising wall such as a veranda between a framed scaffold temporarily provided outside the building and a veranda, a balcony or the like in construction work.

[0002]

2. Description of the Related Art For example, Utility Model Registration No. 2515524 is proposed as a conventional bridge device used for a worker to climb over a rising wall between a framed scaffold temporarily provided outside a building and a veranda or the like. Have been.

In this bridge device, a bridge is formed by attaching an upper end of a ladder frame on a framed scaffold side to a front edge of a lower surface of a tread plate and an upper end of a telescopic ladder frame on a veranda side to a rear edge of the lower surface. Each of the handrails is attached to the opposing building frames, and the ladder frame on the framework scaffold side of the bridge is arranged so as to be located between both handrail frames, and the lower end of this ladder frame is fixed to the cross beam provided on the framework scaffold, The railing provided on both sides of the upper part of the bridge and the railing of the framework scaffold are connected by a clamp, and the lower end of the ladder frame on the veranda is grounded to the floor of the veranda.

[0004]

By the way, in the above-mentioned conventional bridge, the ladder frame on the framework scaffold side is arranged between the handrails provided on the opposite construction frames of the framework scaffold. Therefore, the arrangement of the bridge is limited to an intermediate position between the facing building frames, and there is a problem that the arrangement of the bridge becomes difficult depending on the conditions of the framework scaffold and the veranda.

[0005] In addition, the above-mentioned conventional bridge has a problem that the tread plate hinders the construction of the upper surface of the rising wall because the tread plate remains positioned directly above the rising wall and cannot be moved.

Further, rising walls such as porches and balconies have different thicknesses depending on building conditions. However, in the above-mentioned conventional bridge, even if the height of the rising walls can be changed, the thickness and the distance between the framework scaffold and the veranda change. There is also a problem that can not respond to.

Therefore, according to the present invention, the arrangement of the bridge can be selected at any of the left and right positions between the opposing building frames of the framework scaffold, and when the upper surface of the rising wall is constructed, the step plate does not hinder the construction. An object of the present invention is to provide a bridge device for climbing over a veranda or the like which can cope with a change in a thickness of a rising wall or a change in a positional relationship between a framework scaffold and a veranda.

[0008]

In order to solve the above-mentioned problems, the invention according to claim 1 is arranged so that a handrail frame fixed between building frames of a framed scaffold and a rising wall such as a veranda are straddled. The railing frame body has a closed frame that is erected at the upper part of the range from approximately the middle part of the lower horizontal rail to one end side, which is fixed between the building frames of the framework scaffolding at both ends with clamps. The bridge is formed by providing a clamp at an upper outer end of the closed frame to the building frame, and the bridge is
The ladder frame positioned on the indoor side and the ladder frame positioned on the outdoor side, with the rising wall such as a veranda sandwiched, the upper ends are pivotally attached to each other so that folding and open legs can be freely performed, and the ladder frame positioned on the indoor side is The length can be freely adjusted so that the lower end is in contact with the floor surface, and has a handrail extending from the middle to the upper end to the outdoor side.
At the lower end thereof, a mounting bracket is provided to be fixed to a portion of the lower horizontal rail of the handrail frame that is not provided with a closed frame, and a step plate is provided between the two ladder frames so as to freely pivot up and down on the one ladder frame. On the other hand, the structure is provided so as to be freely detachable with respect to the ladder frame, and the closing frame of the handrail frame and the handrail of the ladder frame positioned on the indoor side are provided with a connecting means for both.

According to a second aspect of the present invention, in the first aspect of the present invention, the bridge is provided on a hinge protruding from an upper end portion of the ladder frame positioned on the indoor side toward the outdoor side, and on the ladder frame positioned on the outdoor side. A plurality of mounting holes are provided to pivotally support the upper end of the ladder frame, and the position of the ladder frame at the upper end of the ladder frame to be installed on the outdoor side is selected according to the thickness of the rising wall such as a veranda or the distance between the framework scaffold and the veranda. The configuration adopts a configuration that can be used.

[0010] The invention of claim 3 is claim 1 or claim 2.
In the invention according to the invention, the step board is pivotally supported at one end side so as to be rotatable and rotatable in the middle of the ladder frame positioned on the outdoor side, and the lower surface of the other end of the step board is positioned on the middle of the ladder frame positioned on the indoor side. Is provided, and a locking means is provided on the lower surface of the other end of the tread plate and on the middle of the ladder frame positioned on the indoor side so as to be freely detachable. The present invention employs a configuration in which a locking portion for stopping the locking means is provided to hold the stepped plate.

The invention according to claim 4 is the invention according to claims 1 to 3.
In the invention, the lower horizontal rail of the handrail frame is configured to be extendable and contractable with respect to the closed frame side.

The invention according to claim 5 is the invention according to claims 1 to 4.
In the invention of the fifth aspect, a configuration is adopted in which a diagonal member is provided in the closed frame of the handrail frame so that the lower horizontal rail is not bent.

[0013] Here, the handrail frame is provided with a closing frame deviating from the substantially middle portion of the lower horizontal rail to one end side, so when fixing between the construction frames of the framed scaffold, the handrail frame body is inverted to close the handrail frame. Can be selected left and right, so that the arrangement of the bridge can be selected left and right between the building frames.

Further, both ladder frames are formed by providing a step between a pair of vertical columns, and the ladder frame positioned on the indoor side is such that the vertical columns can expand and contract by a combination of an upper large-diameter pipe and a lower small-diameter pipe. Is formed.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in the figure, a bridge device for climbing over a veranda or the like includes a handrail frame 4 fixed between building frames 3 of a framed scaffold 2 temporarily provided outside a building 1, and a rising wall 6 such as a veranda 5 or the like. It consists of a combination with a bridge 7 for climbing over which is arranged to straddle.

The handrail frame 4 is provided with a closed frame 10 using a pipe at an upper portion of a range from a substantially middle portion to one end of a lower cross bar 9 which is fixed between the building frames 3 of the framework scaffold 2 at both ends by clamps 8.
Are formed upright.

At the upper outer end of the closing frame 10, a clamp 11 for fixing to the building frame 3 is provided, and the lower horizontal rail 9 is inserted into the large-diameter pipe 12 on which the closing frame 10 is erected and into the pipe 12. Clamps 8, 8 are provided at the opposite ends of the two pipes 12 and 13 so as to be fixed to the vertical columns of the building frame 3 so as to be able to expand and contract with the small-diameter pipe 13 toward the closing frame 10.

The pipes 12 and 13 are fixed by bolts 14 so as to be able to cope with the difference in the interval between the building frames 3, and the closing frame 10 has a width enough to close approximately half of the space between the building frames 3. It has the height necessary to ensure safety. This closed frame 1
Clamp 1 to be fixed to building frame 3 at the outer end position at the top of 0
1 is fixed. The clamp 11 is connected to the upper end of the closing frame 10 and the horizontal rail 53 so that the clamp 11 can be fixed to an appropriate position of the building frame 3.
Can be fixed at an appropriate position by sliding between the upper and lower sides.

The handrail frame 4 is fixed between the building frames 3 at three points on both lower sides and one upper side, and is turned left and right, so that the closing frame 10 can be moved between the left and right sides of the building frames 3. Can also be placed on the side.

The bridge 7 for climbing over has a width which can be accommodated in a portion of the handrail frame 4 fixed between the building frames 3 without the closing frame 10.

The ladder frame 15 positioned on the indoor side with the rising wall 6 such as a veranda sandwiched therebetween and the ladder frame 1 positioned on the outdoor side
Reference numeral 6 has upper ends pivotally connected to each other so that the legs can be freely folded and opened.

The length of the ladder frame 15 located on the indoor side can be freely adjusted so that the lower end thereof is in contact with the floor, and the handrail 17 extending from the middle to the upper end toward the outdoor side is provided.
have.

The ladder frame 16 positioned on the outdoor side is formed by providing a mounting bracket 18 at a lower end thereof to be fixed to a portion of the lower horizontal rail 9 of the handrail frame 4 without the closing frame 10.

A step board 19 is provided halfway between the two ladder frames 15 and 16 so as to be rotatable up and down on one ladder frame 16 so as to be rotatable with respect to the other ladder frame 15. .

The closed frame 10 of the handrail frame 4 and the handrail 17 attached to the ladder frame 15 positioned on the indoor side are structured so that they can be connected by providing connecting means 20 for both.

The ladder frame 15 located on the indoor side is shown in FIG.
As shown in (A), a pair of upper vertical rails 2 using a large-diameter pipe
1 and 21 are placed in the lower half position by a plurality of steps 22
And an upper ladder frame 24 provided with a horizontal rail 23 at a substantially middle position, and a lower part using a small-diameter pipe.
The lower ladder frame 27 has a pair of lower vertical rails 26 connected to each other at the lower end and having a lower end serving as a ground contact portion.

In the lower vertical rail 26 of the lower ladder frame 27, horizontal holes 28 are provided at regular intervals in the longitudinal direction.
The upper vertical rails 21 and 21 are provided at their lower ends with locking hooks 29 which can be inserted into and removed from the horizontal holes 28.
As shown in FIG. 4B, the locking hook 29 has a distal end bent in a hook shape, and is provided with elasticity such that the distal end always engages with the lateral hole 28 by a spring. In addition, lower ladder frame 2
In the step 25 of FIG. 7, the mounting position can be selected at the interval of the horizontal hole 28 by the locking hook 25a provided at the end.

The length of the ladder frame 15 can be freely adjusted up and down at intervals of the horizontal holes 28 by selecting the horizontal holes 28 in which the upper ladder frame 24 and the lower ladder frame 27 lock the locking hooks 29. On the upper ladder frame 24 of the ladder frame 15, handrails 17 are fixed to the upper vertical rails 21 and 21. As shown in FIG. 1 and the like, the handrail 17 includes a step 22 on the upper vertical rail 21 closer to the lower side than the horizontal rail 23 and an upper vertical rail 21.
After projecting toward the indoor side from the locking hook 17a at the lower end engaged with the upper part, it rises upward in parallel with the upper vertical bar 21 and the upper part is bent horizontally to extend to the outdoor side. The protruding portion 30 a is inserted into the opening at the upper end of the upper vertical bar 21 and is fixed with the screw 50.

The ladder frame 16 positioned on the outdoor side is formed by connecting the lower half positions of the pair of vertical rails 31 and 31 with a plurality of steps 32 and has an upper ladder frame having the same width as the ladder frame 15 on the indoor side. It is formed slightly longer than 24.

At the lower ends of the vertical rails 31, 31, there are provided mounting brackets 18 fixed to the lower horizontal rail 9 of the handrail frame 4. As shown in FIG. 4A, the mounting bracket 18 has a downwardly U-shaped metal fitting 33 which is fitted to the small-diameter pipe 13 in the lower horizontal rail 9 of the closing frame 10, and is removably inserted into and below the metal fitting 33. It is formed by the gravity pins 34. Note that a screw can be used instead of the pin 34.

A hinge 35 that projects horizontally toward the outside of the room is fixed to the upper ends of the upper vertical rails 21 and 21 of the ladder frame 15 located on the inside of the room. The hinge 35 is provided with two mounting holes 36 and 37, and the upper ends of both the vertical bars 31, 31 of the ladder frame 16 located on the outdoor side are selectively inserted into either of the mounting holes 36 and 37 with the pin 43. To be pivoted to. In addition, at least one of the two pins 43 provided at the upper ends of the vertical rails 31 is formed as a gravity pin as shown in FIG.

The ladder frame 15 positioned on the indoor side and the ladder frame 16 positioned on the outdoor side can be opened freely from the folded state where they are overlapped by the hinge 35, and the pins 43 of the ladder frame 16 and the hinge 35 can be opened. By selecting one of the mounting holes 36 and 37 when pivoting by
While the tread plate 19 is kept substantially horizontal, both ladder frames 15 and 1
6 can be set to be wide or narrow, and it is possible to cope with a change in the thickness of the rising wall 6 of the veranda, a change in the distance from the framework scaffold 2, and the like.

One end of a step board 19 is pivotally supported by a pin 38 at a position corresponding to the height of the horizontal rail 23 of the ladder frame 15 in the middle of the ladder frame 16 positioned on the outdoor side. When the two ladder frames 15 and 16 are opened, the other end of the tread plate 19 is supported by the horizontal rail 23 and becomes horizontal.

The upper vertical rails 21 of the ladder frame 15 to be positioned indoors on both sides at the other end of the step board 19,
At a lower position of the horizontal rail 23 in 21, a locking means 39 for removably connecting the tread plate 19 and the ladder frame 15 is provided. The locking means 39 is provided on the lower surface of the tread plate 19 as shown in FIG.
A locking hook 40 similar to the one shown in (B) is attached, a spring is used to urge the hook 40 to move inward, and the tip of the locking hook 40 is locked to the ladder frame 15. It is formed by fixing a bracket 41 having holes.

The vertical rail 31 of the ladder frame 16 located outside the room
A bracket 42 for fixing the distal end of the locking hook 40 is fixed to the upper position of the frame so that the tread plate 19 can follow the ladder frame 16 when the ladder frames 15 and 16 are folded.

At the upper end of the closing frame 10 erected on the handrail frame 4 on the side where the bridge 7 is disposed, and at the end of the horizontal portion 30 of the handrail 17 in the fridge 7, the closing frame 1 is provided.
Connecting means 20 provided for fixing the handrail 17
A hook 44 whose tip is bent downward is attached to the upper end side surface of the closing frame 10 so as to be vertically movable and rotatable, and a spring 45 urges the hook 44 with downward elasticity.

A plurality of holes 46 for engaging the hooks 44 are provided on the upper surface of the end of the handrail 17, and the closing frame 10 is fixed to the end of one of the handrails 17 so that the closing frame 10 does not bend indoors. Like that. As shown in FIGS. 2 and 3, the closing frame 10 is provided with a positioning cross beam 52 at a position where the height of the upper surfaces of the tread plate 19 and the rising wall 6 of the veranda has a margin. Further, a bridge 7 is attached to the lower horizontal rail 9, and a diagonal member 51 is provided in the closing frame 10 so that the lower horizontal rail 9 does not bend when an operator stands on the bridge 7.

The bridge device according to the present invention is configured as described above. Next, a method of using the bridge device will be described.

The brace of the part of the framed scaffold 2 temporarily provided outside the building 1 facing the veranda 5 is removed, and the handrail frame 4 is faced to this part, and the positioning cross bar 52 of the closing frame 10 is attached to the rising wall 6 of the veranda 5. To the height of the closing frame 10
And the clamps 8 and 11 at one end of the lower horizontal rail 9 are fixed to the building frame 3. Subsequently, the lower horizontal rail 9 is extended and the clamp 8 is fixed to the building frame 3, whereby the handrail frame 4 is moved to the building frame 3.
Fixed to At this time, by selecting the direction of the front and back of the handrail frame 4, the closing frame 10 can be arranged at any position on the left or right.

Next, the bridge 7 having both the ladder frames 15 and 16 opened is straddled on the rising wall 6 of the veranda 5, and the outdoor ladder frame 16 is placed between the building frame 3 and the closing frame 10. , And the lower end of the ladder frame 16 is fixed to the lower horizontal rail 9 with the mounting bracket 18. The lower end of the ladder frame 15 on the indoor side is grounded to the floor of the veranda 5. The end of the tread plate 19 attached to the ladder frame 16 on the outdoor side is placed on the horizontal rail 23, and the tread plate 19 is fixed to the ladder frame 15 by the locking means 39.

The length of the ladder frame 15 on the indoor side is adjusted to level the tread plate 19. Furthermore, when the end of the handrail 17 attached to the closing frame 10 and the ladder frame 15 on the indoor side is joined by the joining means 20, the setting of the bridge 7 is completed, and the bridge 7
, The crossover between the framework scaffold 2 and the veranda 5 can be achieved.

When the bridge 7 is connected to the ladder frames 15 and 16 by the hinge 35, one of the mounting holes 36 and 37 is selected, as shown in FIG. 8 and FIG. It is possible to cope with a change in the positional relationship of the framework scaffold 2 and a change in the thickness of the rising wall 6, and when constructing on the rising wall 6, the step board 19 may be raised so that the step board 19 does not interfere.

The removal of the bridge 7 and the handrail frame 4 may be performed in the reverse order of the above-described assembly.

[0045]

As described above, according to the present invention, the handrail frame fixed to the framed scaffold is formed by providing the closing frame at a position offset to one of the lower horizontal rails. The arrangement of the bridge can be selected at any of the left and right positions between the opposing building frames of the framework scaffold, and can be used according to the conditions of the building and the scaffold.

Further, since the step board is mounted on the one side of the ladder frame so as to be rotatable and rotatable, and the other side is detachably engaged with the horizontal rail of the ladder frame, the step board is rebounded when the upper surface of the rising wall is constructed. By raising it, the step board does not get in the way and the work can be performed smoothly.

Further, when constructing the floor of the Heranda, the lower ladder frame can be shrunk into the upper ladder frame and lifted off the veranda floor without removing the bridge. In addition, since the bridge allows the upper and lower pivoting positions of both ladder frames to be selected inside and outside, the distance between the upper pivoting portions of both ladder frames is variable, the thickness of the rising wall changes, and the distance between the framed scaffold and the veranda is changed. Can respond to changes in relationships,
Extensive use is possible.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a use state of a bridge device.

FIG. 2 is a front view showing a use state of the bridge device.

FIG. 3 is a perspective view of a handrail frame.

FIG. 4A is an exploded perspective view showing a main part of a bridge,
(B) is a cross-sectional plan view showing a portion of a locking hook for adjusting the length of the ladder frame.

FIG. 5 is a perspective view showing a tread plate mounting portion of the outdoor ladder frame.

6 (A) is an exploded perspective view showing a structure for attaching a handrail to an indoor side ladder frame, and FIG. 6 (B) is a longitudinal sectional side view thereof.

FIG. 7 is a plan view showing a connecting portion between the handrail frame and the bridge.

FIG. 8 is a longitudinal sectional view showing a relationship between a bridge and a veranda.

FIG. 9 is a longitudinal sectional view showing a relationship between a bridge and a veranda.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building 2 Framework scaffold 3 Building frame 4 Railing frame 5 Veranda 6 Standing wall 7 Bridge 8 Clamp 9 Lower horizontal beam 10 Closing frame 11 Clamp 12 Large diameter pipe 13 Small diameter pipe 15 Ladder frame 16 Ladder frame 17 Handrail 17a Locking hook 18 Mounting bracket 19 tread plate 20 connecting means 21 upper vertical rail 22 step 23 horizontal rail 24 upper ladder frame 25 step 25a locking hook 26 lower vertical rail 27 lower ladder frame 28 horizontal hole 29 locking hook 30 horizontal part 30a projection 31 vertical rail 32 Step 33 Hardware 34 Pin 35 Hinge 36 Mounting hole 37 Mounting hole 39 Locking means 40 Locking hook 41 Bracket 42 Bracket 44 Hook 45 Spring 46 Hole 50 Screw 51 Diagonal material 52 Positioning horizontal beam 53 Horizontal beam

Claims (5)

[Claims] 1. A combination of a handrail frame fixed between building frames of a framed scaffold, and a bridge for climbing over a rising wall such as a veranda, wherein the handrail frame is clamped at both ends. A closed frame is erected on the upper portion of the range from about the middle part of the lower cross rail to be fixed between the frames of the scaffolding scaffold to one end side, and a clamp is provided at the upper outer end of the closed frame to fix to the building frame. The bridge has a ladder frame positioned on the indoor side and a ladder frame positioned on the outdoor side with a rising wall such as a veranda interposed therebetween, and upper ends are pivotally attached to each other so that folding and opening of the ladder frame can be freely performed. The ladder frame to be located is
The length of the ladder frame can be freely adjusted so that the lower end is in contact with the floor surface, and has a handrail extending from the middle to the upper end to the outdoor side. The ladder frame located on the outdoor side has a lower side of the handrail frame at the lower end. It is formed by providing a mounting bracket for fixing to a portion of the crosspiece without a closed frame, and a tread plate is pivotally supported on one of the ladder frames so as to be able to move up and down on the one ladder frame and to be detachable from the other ladder frame. Provided so that
A bridge device for climbing over a veranda or the like, wherein means for connecting the closed frame of the handrail frame and the handrail of a ladder frame located on the indoor side are provided. 2. A bridge comprising a plurality of mounting holes for detachably pivotally supporting an upper end of a ladder frame positioned on the outdoor side at a hinge protruding from an upper end portion of the ladder frame positioned on the indoor side toward the outdoor side. The veranda or the like according to claim 1, wherein a pivotal position of the upper end of the ladder frame positioned on the outdoor side with respect to the mounting hole can be selected according to the thickness of the rising wall of the veranda or the distance between the framework scaffold and the veranda. Bridge device for getting over. 3. A step board is pivotally supported at one end side so as to be able to swing up and down in the middle of a ladder frame positioned outside the room, and the other end of the step board is halfway in the ladder frame positioned inside the room. Providing a horizontal rail supporting the lower surface, providing a locking means that is detachable between the lower surface of the other end of the tread plate and the middle of the ladder frame located on the indoor side, on the upper part of the ladder frame located on the outdoor side, 3. A bridge device for climbing over a veranda or the like according to claim 1 or 2, further comprising a locking portion for stopping the locking means for holding the stepped upright plate. 4. The bridge device for climbing over a veranda or the like according to claim 1, wherein the lower horizontal rail of the handrail frame is extendable with respect to the closed frame side. 5. The bridge device for climbing over a veranda or the like according to claim 1, wherein a diagonal member is provided in the closed frame of the handrail frame so as to prevent the lower horizontal rail from bending.