JP2500350Y2 - Building frame holder for handrail frame for temporary scaffolding - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction frame holder for fixing a safety handrail frame attached to a temporary frame scaffold to a scaffolding construction frame.

[0002]

2. Description of the Related Art Conventionally, in order to construct a framed temporary scaffolding using a building frame, the building frames arranged opposite to each other are connected by an X-shaped brace, and scaffolding boards are provided between the upper horizontal rails of both building frames. Erection of both building frames to make them stand-alone, which are continuously constructed in the lateral direction to build a first-floor floor, and then placed on scaffolding boards to add new building frames on each building frame, and the opposing building frames The second floor is constructed by combining with the braces and installing scaffolding boards.

In this way, by constructing the frame temporary scaffolding of a desired height by sequentially assembling each floor upward, the scaffolding is disassembled from the upper floor in reverse order. To go.

By the way, since the conventional brace has a structure in which two pipes are connected to each other in an X shape, only the opposing construction frames are connected to each other, and the scaffolding plate is assembled after the floor is assembled. Although it will have the function of forming safety fences on both sides of the floor, when assembling the upper floor, the opposite building frames are connected after the building is built, so the scaffolding board of the scaffolding board can be used when assembling the upper floor. Since there is no such thing as a handrail to ensure safety on both sides, there is a problem that the risk of work increases as the scaffolding assembly becomes expensive. The same applies when dismantling.

[0005]

Therefore, when constructing a temporary frame scaffolding, it is considered to attach the handrail frame to the upper part between the building frames by using the clamp metal fittings. It takes time and labor, and since both ends of the handrail frame cannot be temporarily placed between the building frames, there is a problem that a plurality of workers are required to attach and detach.

Therefore, in order to solve the above problems, the present invention can easily and firmly attach the handrail frames between the building frames, and the work of attaching and detaching the handrail frames can be performed labor-savingly. The challenge is to provide a frame holder for the frame.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention proposes a bracket fixed to a vertical rail of a handrail frame so as to project outward, and a vertical column of a temporary scaffolding frame at the tip. A holding member having a concave portion circumscribing with respect to the bracket and attached to the tip of the bracket so as to be capable of rotating upward from a horizontal state, and a fitting portion of the bracket and the holding member is axially movable. And a spring that urges the connecting pin to attach the holding member to the end of the bracket and urges the connecting pin to move in one axial direction.
The coupling pin is provided with a square shaft portion and a circular shaft portion, and a square hole for engaging and disengaging the square shaft portion is formed by moving the coupling pin in an axial direction in a portion of the bracket that supports the coupling pin. By adopting a fitting phase of the shaft portion, the holding member can be changed between a horizontal posture and a standing posture.

[0008]

In order to raise or change the posture of the holding member attached to the end of the bracket, the connecting pin is pushed in the axial direction against the spring, the angular shaft is disengaged from the angular hole, and the circular shaft is positioned. By doing so, it becomes possible to rotate the holding member around the connecting pin. If the pressing of the connecting pin is released after the posture is changed and the square shaft portion is fitted into the square hole again, after the posture of the holding member is changed. The state can be fixed.

[0009]

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

First, as shown in FIG. 1, the building frame 1 is, as is well known, formed in a gate shape or a torii shape in which a pair of vertical columns 2, 2 using pipes are connected by a horizontal rail 3, and the vertical column 2, Brace pins 4 and 5 project from the upper and lower end portions of 2, and scaffolding plates 6 are erected on the horizontal rails 3, and the upper and lower building frames are joined by joints 7 and joined upward.

Next, the brace handrail frame 8 which is a pipe structure attached to the building frame 1, as shown in FIG. 2, has a pair of vertical rails 9 and 9 arranged in parallel on both sides, and both vertical rails 9 and 9. It is composed of a lower horizontal rail 10 connecting the lower ends, an upper horizontal rail 11 connecting the upper ends of both vertical rails 9 and 9, and a reinforcing pipe 12 connecting the middle portions of both vertical rails 9 and 9 to each other. And the like, the width is set between the building frames 1, 1 facing each other at a predetermined interval, and the height of the building frame 1 is slightly more than a half of the height of the building frame 1. The pattern shape of the brace handrail frame 8 may be any design as long as it can be practically used in terms of strength.

Both vertical bars 9 in the brace handrail frame 8,
In FIG. 9, the brace handrail frame 8 and the building frames 1 and 1 are connected to each other in order to improve the upright holding and strength of the building frame 1 and at the same time to fix the brace handrail frame 8 to the building frame 1. A mounting bracket 13 that is locked to the horizontal rail 3, a lock plate 14 and a building frame holder 15 that are locked to the vertical column 2 are mounted.

The mounting bracket 13 is fixed at a position close to the lower ends of both vertical rails 9 and 9, and the mounting bracket 13 is locked to the upper horizontal rail 3 and the vertical column 2 of the building frame 1 so that the building frame is closed. The reference of the mounting position of the brace handrail frame 8 with respect to 1 is set.

As shown in FIGS. 4 and 5, the fitting 13 is a fitting main body 16 fixed to the vertical rail 9 of the brace handrail frame 8 so as to project outward, and a claw fitting attached to the fitting main body 16. Hook 2 fixed to the side of 17 and metal fitting body 16
5, the metal fitting body 16 is provided with a recessed portion 19 at the tip of the horizontal upper wall 18 that abuts on the outer peripheral surface of the vertical column 2 on the outer peripheral surface of the horizontal crosspiece 3 at about a quarter. One of the side walls 20 and 21 provided on both sides of the side wall 20 is provided with a recess 22 that abuts the outer peripheral surface of the upper portion of the horizontal bar 3 at the tip of the side wall 20 located on the side of the horizontal bar 3. Mounting pieces 23 and 24 protruding from the rear ends of 20 and 21 are fixed to the vertical rail 9 by welding or pins.

Therefore, the end of the metal fitting body 16 circumscribes the vertical column 2 and simultaneously contacts the horizontal rail 3.

The claw metal fitting 17 is formed on both side walls 20 of the metal fitting body 16,
The side wall 2 is formed into a substantially triangular shape so as to fit between the two 21
The midway is supported by a fulcrum pin 26 installed between 0 and 21 and is swingable. The claw metal fitting 17 has a tip end portion of approximately 2 on the outer surface opposite to the horizontal rail 3 of the vertical column 2 so that it is just upside down with the recessed portions 19 and 22 provided on the upper wall 18 and the side wall 20.
A semicircular concave cutout portion 27 that is circumscribed in a range of one-half is provided, and the upper edge of the tip of one side plate 28 serves as a contact portion 29 for the lower portion of the horizontal rail 3.

Vertical holes 30 are provided in the upper portions of both side walls 20 and 21 of the metal fitting body 16, and a lock pin 31 is vertically movably installed between the long holes 30.
Is in a state of contacting the upper surface of the claw metal fitting 17 when in the lowered position, preventing the claw metal fitting 17 from rotating in the clockwise direction in FIG. 4 (A), and making the tip contact the vertical column 2 and the horizontal rail 3. When the lock pin 31 is pulled up and the claw metal fitting 17 is rotated by its own weight in the clockwise direction in FIG. 4A, the vertical pillar 2 and the horizontal rail 3 are fixed.
It is designed to release the contact with.

The hook 25 is fixed at an upper position on one side surface of the metal fitting body 16, and the arcuate recess 25a formed on the lower surface side is locked on the horizontal rail 3.

As described above, the mounting bracket 13 is shown in FIG.
As shown by the arrows in (A) and (B), the vertical column 2 and the horizontal rail 3 are circumscribed, and the vertical direction a and the horizontal direction b along the axial direction of the horizontal rail 3 and the diameter direction c of the horizontal rail 3 are defined. Movement is prevented, whereby the brace handrail frame 8 is fixed to the building frame 1 in each of the above directions.

The above-mentioned lock plates 14 are attached to two positions of the vertical rail 9 of the brace handrail frame 8 in the vertical middle part and below the clamp fittings, and the lower lock plate 14 is the upper part of the building frame 1. Corresponding to the brace pin 4, the upper lock plate 14 corresponds to the lower brace pin 5 of the upper building frame 1.

This lock plate 14 is shown in FIG.
As shown in (B), it is possible to swing up and down around the rear end pivotally fixed to the vertical rail 9 by the pin 32, and the spring 33 incorporated in the pin 32 is provided.
The brace handrail frame 8 is formed by the lock plate 14 which holds the posture and is provided with an engaging notch 34 for the brace pin 4 or 5 at the lower end of the tip.
Can be fixed to the building frame 1 in the parallel direction of the building frame 1.

Since the brace handrail frame 8 is locked to the horizontal rail 3 of the building frame 1 by the mounting bracket 13, the upper and lower positions are determined with reference to the mounting bracket 13, and thus the brace pin 4 of the existing building frame. 5 can be effectively used as it is. The lock plate 14 may be omitted from being attached to the brace handrail frame 8.

The building frame holders 15 are attached to the upper and lower ends of the vertical rails 9 on both sides of the brace handrail frame 8 as shown in FIG.
As shown in FIG. 7 and FIG. 7, a bracket 51 fixed to the vertical rail 9 so as to horizontally project toward the outer side in the plane direction of the brace handrail frame 8, a holding member 52 attached to the tip of the bracket 51, and a bracket 51 It is composed of a connecting pin 53 to which the holding member 52 is attached at the tip, and a spring 54a for urging the connecting pin 53 to move in one axial direction.

The bracket 51 is formed in a U-shape in a downward cross section, one end thereof is welded and fixed to the vertical crosspiece 9, and side walls 54 and 55 facing each other on one side are formed with a square square hole 56 and the other side wall. 55 and circular holes 57 are provided in a coaxial arrangement.

The holding member 52 has a substantially semi-circular recess 58 circumscribing the vertical column 2 of the building frame 1 at the front end, and is mounted on both sides of the rear end so as to be opposed to the bracket 51 at an interval for external fitting. Pieces 59 and 60 are provided, and one mounting piece 59 has a square hole 61.
A round hole 62 is coaxially provided in the other mounting piece 60. The square hole 61 and the round hole 62 have the same diameter as the square hole 56 and the round hole 57 of the bracket 51.

The holding member 52 includes mounting pieces 59, 60 at the rear end.
Is externally fitted to the side walls 54 and 55 of the bracket 51, the square holes 56 and 61 are aligned with the round holes 57 and 62, and the connecting pin 53 is inserted into the square holes 57 and 62, whereby the holding member 52 is attached to the bracket 51. .

The connecting pin 53 has a head portion 63 and a shaft portion 64.
And the shaft portion 64 is an angular shaft portion 65 located on the head portion 63 side.
And a circular shaft portion 66 that is continuous from the angular shaft portion 65 and has a diameter equal to the length of one side of the angular shaft portion 65. The angular shaft portion 65 is a square equal to the square holes 56 and 61, It has a length that fits over both square holes 56, 61.

The connecting pin 53 is inserted from the side of the square holes 56, 61 toward the round holes 57, 62, and the square shaft portion 65 has the square holes 5.
6 and 61, and the circular shaft portion 66 has round holes 57 and 6
It is fitted with 2.

The spring 54a is externally fitted to a portion of the coupling pin 53 which penetrates through the bracket 51, and is attached to the shaft portion C.
It is contracted between the ring 67 and the one side wall 54 of the bracket 51, and urges the connecting pin 53 to move elastically in the direction in which the head 63 is prevented from coming off.

Therefore, the holding member 52 is fixed in the state where the square shaft portion 65 of the connecting pin 53 is fitted into both the square holes 56 and 61, and is fixed, as shown by the arrow in FIG. 6C. Then, when the connecting pin 53 is pushed toward the head 63 side and moved, and the square shaft portion 65 is separated from the square holes 56 and 61, the circular shaft portion 66 is positioned in the square holes 56 and 61, and is held. The member 52 is in a horizontal state and a standing state with the pin 53 at the center.
The angle can be changed by 0 °.

As shown in FIGS. 6 and 7, the bracket 51 is provided with square holes 56 and round holes 57 on both sides in the length direction so that the mounting position of the holding member 52 by the connecting pin 53 can be selected. ing. That is, there are two types of materials used for constructing the temporary scaffold, metric size and inch size, and there is a dimensional difference in the facing interval of the building frame 1. Therefore, the attachment position of the holding member 52 by the connecting pin 53 is If the selection is made according to the standard, a single structure can be applied to any of the standards.

Further, in FIGS. 1 and 2, a lowermost brace frame 41 is separately prepared in order to connect the lower parts of the lowermost building frame. This bottom brace frame 41 has substantially the same structure as the above-mentioned brace handrail frame 8 except that the vertical height is short. It connects with the crosspiece 44, and the upper and lower horizontal crosspieces 43,
The reinforcement pipe 45 is provided between the two 44,
The building frame holder 15 is provided at the upper and lower ends of each of 2, 44, and the lock plate 1 for the lower brace pin 5 is provided at a position near the lower part.
4a is attached.

The lock plate 14a is shown in FIG.
As shown in (A) and (B), the brace pin 5 fixed to the lower portion of the building frame 2 is fixed so as to project outward from the vertical bar 42, and is attached to the brace pin 5 at the tip. A hole 37 for fitting is provided.

With this lock plate 14a, the building frame 1
When mounting the brace frame 41 between the building frames 1 and 1, the vertical mounting position of the brace frame 41 with respect to the building frames 1 and 1 is determined, and the brace frame 41 is opposed to the building frames by the building frame holders 15 and the lock plates 14a on both sides. It will serve as a brace that joins the 1 and the 1 together.

The building frame holder of the present invention has the above-mentioned structure. To construct a temporary frame scaffold, the lowest building frames 1 and 1 for the first floor are made to face each other on the opposite side of the building. The lower portions of the vertical columns 2 in the position are connected to each other by the lowermost brace frame 41.

This coupling work is performed by the lock plates 1 on both sides.
Insert 4a and 14a into the lower brace pin 5, and then
This is done by tilting the upper and lower building frame holders 15 outward.

Next, the brace handrail frame 8 is vertically held by both hands, and is made to face the upper part between the vertical columns 2 and 2 on the opposite side of the building between the opposing building frames 1 and 1, and the both side mounting brackets 13 are attached. The vertical pillar 2 and the horizontal horizontal rail 3 of the building frame 1 are circumscribed.

In the mounting bracket 13, the lock pin 31 is pulled up in advance, the pawl bracket 17 is placed in a posture in which the tip end faces downward, and first, the hook 25 is locked on the horizontal rail 3 to mount the bracket body 1.
The recess 22 provided at the tip of 6 is brought into contact with the horizontal rail 3, and then the entire brace handrail frame 8 is pushed outward of the building frame 1 to bring the recess 19 into contact with the vertical column 2.

After that, the claw fitting 17 is rotated so that the tip end faces the building frame 1 side, the recessed portion 27 at the tip end is brought into contact with the vertical column 2, and the contact portion 29 is brought into contact with the lower surface of the horizontal rail 3. When they are brought into contact with each other, as shown in FIG. 4, the lock pin 31 is placed on the upper surface of the claw fitting 17, and the posture of the claw fitting 17 is automatically locked.

The mounting bracket 13 fixes the brace handrail frame 8 to the building frame 1 in the vertical and lateral directions, and at the same time, does not move the hook 25 in the direction opposite to the building frame 1 by the hook 25.

Thereafter, both lower lock plates 14 are tilted outward to engage with the upper brace pins 4 of the building frame 1, and the building frame holder 15 at the lower end stands upright.
2 is laid down horizontally, and the recessed end of the holding member 52 is inserted into the vertical column 2
To be circumscribed.

For the horizontal laying down of the upright holding member 52, the connecting pin 53 is pushed toward the head portion 63 side, and the square shaft portion 65 is moved to the square hole 56,
When the holding member 52 is horizontally rotated after being released from 61, and then the pressure is released, the holding pin 52 is returned by the elasticity of the spring 54a, and the connecting pin 53 is fitted in the square shaft portion 64 over the square holes 56 and 61. The holding member 52 is fixed.

In this way, when the holding members 52 on both sides are laid down horizontally to hold the vertical columns 2 of the building frame 1, both vertical columns 2,
The brace handrail frame 8 is fixed in the direction between the two.

As a result, the brace handrail frame 8 is fixed to the upper part between the building frames 1 and 1, and the brace handrail frame 8 is located between the building frames 1 and 1 at the position opposite to the building. The brace handrail frame 8 is erected above the upper end, and after the brace handrail frame 8 is erected, the scaffolding plate 6 is installed between the upper horizontal rails 3 and 3 of the building frames 1 and 1.

By repeating the above work in the lateral direction, the first floor is assembled.

Next, when assembling the second floor, an operator is placed on the scaffolding plate 6 to add the building frame 1. At this time, since the brace handrail frame 8 is erected at a position on the scaffolding plate 6 on the side opposite to the building, it is possible to ensure work safety.

After the building frame 1 is replenished, the upper lock plate 14 is laid down, locked to the lower brace pin 5 of the rebuilt building frame 1, and the holding frame 52 of the upper building frame holder 15 is also laid down. By repeating the above work in the lateral direction, the second floor can be assembled, and by repeating such work in order upward, the temporary frame scaffolding of the required height is constructed.

In the construction of the temporary frame scaffold, both side building frames 1 and 1 of each floor are connected by the brace handrail frame 8 at the upper and lower brace pins 4 and 5, and the mounting bracket 1 is attached.
3 holds the cross rail 3, and the building frame holders 15 and 15 are the building frames 1
Since the vertical columns 2 are held, the building frames 1 and 1 facing each other can be firmly connected, and a highly safe temporary frame scaffolding can be constructed.

The building frames 1 and 1 may be connected to the building side by using a conventional X-shaped brace.

Next, in order to remove the brace handrail frame 8 when dismantling the temporary frame scaffold, both side lock plates 14 of the brace handrail frame 8 and the holding member 52 of the building frame holder 15 are removed.
Upright, push up the lock pin 31 of the mounting bracket 13 with a fingertip, and rotate the claw bracket 17 so that the tip end faces downward,
The brace handrail frame 8 can be removed from the space between the building frames 1 and 1 by pulling the brace handrail frame 8 toward the front in a state where the brace handrail 8 and the horizontal rail 3 are disengaged.

After that, the upper building frame 1 is extracted, and by repeating this downwardly, the temporary frame scaffolding can be disassembled.

The dismantling of the temporary scaffold is performed from the upper side, which is the reverse of the construction, and the brace handrail frame 8 is located on the side of the scaffolding plate 6 even during the dismantling work, so that safety can be ensured. Along with that, the appearance of the constructed temporary scaffold is the building frame 1
It has a pattern shape in which the brace handrail frame 8 is located between
It is also excellent in design and can improve aesthetics.

[0053]

As described above, according to the present invention, the handrail frame to be attached to the scaffolding frame can be fixed in the direction between the scaffolding frames, and the handrail frame can be fixed to the scaffolding frame. In addition to being able to perform firmly and stably, it is possible to lock the holding member upright and horizontal laid down by pushing the pin, so if you keep it upright, the handrail frame can be attached and removed smoothly.
If it is laid down horizontally, the holding of the building frame does not occur even if external pressure is applied, and the handrail frame can be firmly fixed to the building frame, thus improving safety.

[Brief description of drawings]

FIG. 1 is a perspective view showing a usage state of a brace handrail frame using a building frame holder according to the present invention.

FIG. 2 is a front view of the above.

FIG. 3 is an enlarged front view of the main part of the above.

FIG. 4A is a vertical cross-sectional front view showing a usage state of the mounting bracket, and FIG.

FIG. 5 is an exploded perspective view showing how the mounting bracket is used.

6A is a cross-sectional plan view of a building frame holder, FIG. 6B is a front view of the same, and FIG. 6C is an enlarged cross-sectional view of arrow C-C in FIG. 6A.

FIG. 7 is an exploded perspective view of a building frame holder

FIG. 8A is a transverse plan view of the lock plate, FIG.
Is the same front view

9A is a cross-sectional plan view of the lock plate for the bottom brace handrail frame, and FIG. 9B is a front view thereof.

[Explanation of symbols]

 1 Building Frame 2 Vertical Column 3 Horizontal Rail 4, 5 Brace Pin 6 Scaffolding Board 8 Brace Handrail Frame 9 Vertical Rail 13 Mounting Bracket 15 Building Frame Holder 51 Bracket 52 Holding Member 53 Connecting Pin 54a Spring 56, 61 Square Hole 57, 62 Round Hole 65 Square shaft 66 Circular shaft

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-52-14034 (JP, A) Actually open 3-57243 (JP, U) Actually open 60-115331 (JP, U) Actually open 59- 179940 (JP, U) Actually opened 61-117830 (JP, U) Actually opened 64-2828 (JP, U)

Claims (1)

(57) [Scope of utility model registration request] 1. A bracket fixed to a vertical rail of a handrail frame so as to project outward, and a recess at the tip which is circumscribed with respect to a vertical column of the temporary scaffolding frame, and the bracket has a horizontal position from the horizontal state. A holding member that is attached so as to be able to rotate upward, a connecting pin that penetrates the fitting portion of the bracket and the holding member so as to be movable in the axial direction, and attaches the holding member to the tip of the bracket, and this connecting pin. A spring for urging the elastic movement toward one side in the axial direction, the connecting pin is provided with an angular shaft portion and a circular shaft portion, and the connecting pin is moved in the axial direction at a portion supporting the connecting pin of the bracket. By forming a square hole through which the square shaft engages and disengages, and by selecting the fitting phase of the square shaft with respect to the square hole, the construction frame of the temporary scaffolding handrail frame in which the holding member can be changed between the horizontal and standing postures. holder.