JP3962590B2 - Handrail device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a handrail device.
[0002]
[Prior art]
Conventionally, as a workbench used when performing various kinds of construction work such as interior decoration, painting, or electrical work on a high position such as an upper part of a wall or an indoor ceiling, the one described in, for example, Japanese Patent Application Laid-Open No. 2001-152659 It has been known. This work table is composed of a plurality of main legs that support the top plate. In some cases, a plurality of work tables are installed in close proximity to each other, and the top plates are connected to each other by connecting plates. The work stage can be expanded.
[0003]
By the way, in this workbench, a handrail can be attached to the outer peripheral part of the top plate.
The mounting structure of this handrail attaches a fixing member bent in a concave shape to the lower end of the vertical rail of the handrail with a bolt and a nut, and the tip of this fixing member is attached to the long side side intermediate wall (the side wall created by the intermediate rib) A plate-shaped member bent in an L shape is placed in contact with the inner corner formed by the vertical rail of the handrail and the top surface of the top plate, and the plate-shaped member is bolted and nuted to the vertical rail of the handrail. Attach with.
[0004]
Further, a pin is inserted into a positioning hole provided in advance in each of the plate member and the top plate.
That is, the top plate is vertically clamped by the fixing member and the plate-like member that are fixed to the handrail side, and the positional displacement along the outer peripheral portion of the top plate is prevented by a retrofitted pin.
[0005]
[Problems to be solved by the invention]
In the above-described conventional workbench, it is essential to provide a positioning hole on the top plate side as a handrail attachment structure, and therefore it is described in this publication that the attachment position of the handrail with respect to the top plate can be freely changed. It must be said that it is impossible, contrary to the matter. That is, assuming that an extra positioning hole is provided for the top plate, the position can be changed only within that range.
Not only handrails and worktables are not necessarily sold and distributed as an inseparable set, but handrails or worktables will be purchased according to various circumstances on the part of the contractor such as damage or expansion. There is. For this reason, if a new handrail is newly purchased, it is necessary to make the above-mentioned top plate positioning hole diameter, formation pitch, etc. completely match between the existing workbench and the manufacturer or model number. .
[0006]
Therefore, it was very troublesome for such purchase.
In particular, in this type of work table, there are cases where a plurality of work tables are installed close to each other as described above and the top plates are connected to each other by a connecting plate. In such a case, the trouble of having to fully consider the possibility of attaching the handrail to the connecting plate (crossover plate) has occurred.
The present invention has been made in view of the above circumstances, and can be mounted without being affected by detailed circumstances such as the structure or model on the side of the mounting counterpart (the above-described workbench or the like), and to the top plate. An object of the present invention is to provide a handrail device capable of arbitrarily changing the mounting position.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has taken the following measures.
That is, the handrail device according to the present invention is attached to the side of a scaffolding plate having a downward outer peripheral rib on the outer peripheral portion, and a fence main body provided with a plurality of mounting legs, And a bracket portion provided at a lower end portion of each mounting leg of the fence body.
And each bracket part has a base member, a floating prevention piece, and a clamp member.
[0008]
The foundation member can be brought into contact with the outer peripheral rib of the scaffold plate on the outer surface of the rib.
Further, the levitation prevention piece extends from the base member to the back surface of the scaffold plate beyond the lower side of the outer peripheral rib, and comes into contact with the back surface from below.
The clamp member is provided from the base member toward the lower end portion of the outer peripheral rib, and a hook portion that engages with the outer peripheral rib is provided at a tip portion thereof.
Further, the clamp member is provided so as to be capable of being pulled toward the base member.
[0009]
With this configuration, the bracket portion is fixed to the scaffold plate by sandwiching the outer peripheral rib of the scaffold plate between the foundation member and the clamp member, and pulling the clamp member toward the foundation member side. Can do. At this time, because the bracket portion is in contact with the back surface of the scaffolding plate, even if the bracket body on the upper side of the bracket portion is subjected to a load that causes the scaffolding plate to fall outward, the scaffolding plate The bracket is not shaken in the fixed state of the bracket, and the fixed state is maintained.
Thus, in the present invention, a positioning hole is not required for the scaffold plate, and arbitrary positioning can be performed along the outer peripheral portion thereof.
[0010]
The bracket part can be formed separately from the fence body. In this case, the base member of the bracket part is provided with a leg receiving hole for inserting the attachment leg of the fence body and holding it relative to each other. Shall.
And one of these base members of the bracket part or the mounting leg of the fence body is provided with a rotation prevention mechanism for temporarily fixing the rotation angle of the bracket part with respect to the mounting leg at two orthogonal positions. be able to.
If it does in this way, when packing this handrail device as a product, or at the time of handling at the time of transportation, storage, etc., a bracket part can be made into the state twisted sideways. That is, as a result, the floating prevention piece and the clamp member of the bracket portion are parallel to the main body of the fence, so that the handrail device as a whole becomes flat and can be made compact without any unusual protrusion.
[0011]
The fence body may be provided with a drop-off preventing piece that can be locked to the upper surface of the scaffolding plate with respect to the mounting leg.
If it does in this way, when attaching this handrail apparatus to a scaffold board, a fence main part can be temporarily deposited on a scaffold board, and it may be easy to attach.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 4 to 7 show a first embodiment of a handrail device 1 according to the present invention. 2 and 3 show a state in which the handrail device 1 according to the first embodiment is used for the scaffold device 2 (corresponding to the “workbench” described in the related art).
As apparent from FIGS. 2 and 3, the handrail device 1 is attached to the side of the scaffold plate 3 (described as “top plate” in the prior art) of the scaffold device 2, and if necessary, It attaches to the side part of the connection board (crossing board) 4 which connects the scaffold apparatuses 2 mutually.
[0013]
As shown in FIGS. 1 and 5, the scaffolding plate 3 and the coupling plate 4 of the scaffold device 2 are provided with outer peripheral ribs 5 in a hanging shape along the outer circumferential portion, and generally the scaffolding plate 3 and the coupling plate 4. An intermediate rib 6 is provided on the back surface of the plate for reinforcement.
As shown in FIG. 4, the handrail device 1 includes a fence body 9 provided with a plurality of attachment legs 8, and a bracket part 10 provided at the lower end of each attachment leg 8 in the fence body 9. ing.
The fence main body 9 of the first embodiment has a torii shape formed by two fence pillars 12, a handrail bar 13 connecting them between upper ends, and an intermediate rail 14 connecting between intermediate positions. ing. Each fence post 12 is formed by a hollow pipe having a circular cross section, and the lower end portion thereof is the above-described mounting leg 8 as it is (from the viewpoint of operation, although there is no clear division). That is, the mounting leg 8 has a hollow circle in cross-sectional shape.
[0014]
The handrail bar 13 is extended to the side beyond the fence pillar 12, and the handrail bar 13 is abutted with another handrail device 1 that is adjacent to the handrail device 1 when attached to the scaffold device 2 or the like. (See FIG. 2). By doing in this way, the mutual space | interval of the fence pillar 12 between adjacent handrail apparatus 1 can be narrowed as much as possible, and since the handrail bar 13 can have a continuous unity feeling, also in terms of strength, Moreover, it is a suitable structure also in terms of security coming from the appearance.
Further, the fence main body 9 is provided with a drop-off preventing piece 15 in a state where the mounting legs 8 are connected to each other. As shown in FIGS. 1 and 5, the drop-off prevention piece 15 has a protruding piece portion 15 a that protrudes toward the scaffold plate 3, and is formed in an L-shaped cross section. 3 can be locked to the upper surface.
[0015]
Therefore, when the handrail device 1 is attached to the scaffold board 3, the fence body 9 can be temporarily deposited on the scaffold board 3 to facilitate the attaching operation.
As described above, the gap Q (shown in FIG. 2) formed between the drop-off prevention pieces 15 is also produced as the mutual distance between the fence pillars 12 becomes as small as possible between the adjacent handrail devices 1. This drop-off prevention piece 15 can be said to be a suitable structure in terms of strength and security from the appearance.
As shown in FIG. 1, the bracket portion 10 is formed separately from the fence body 9 in the first embodiment.
[0016]
The bracket portion 10 includes a base member 20, a floating prevention piece 21, and a clamp member 22.
As shown in FIGS. 5 and 6, the base member 20 is formed as a basic shape that can be externally fitted to the mounting legs 8 of the fence body 9 without rattling, and the inside of this cylindrical tube is attached. A leg receiving hole 24 for the leg 8 is provided.
In addition, the fitting of the base member 20 to the mounting leg 8 is stopped at the lower end portion of the drop-off preventing piece 15 provided on the mounting leg 8 side, and further fitting is prevented.
[0017]
The base member 20 is attached so that a part of the outer peripheral surface of the cylinder is in contact with the outer surface of the ribs with respect to the outer peripheral rib 5 of the scaffold plate 3.
The levitation prevention piece 21 is provided integrally with the base member 20 and radially outwards from a part of the outer peripheral surface of the base member 20 while exhibiting a blade plate shape parallel to the axial direction. It is designed to project in an L shape.
The levitation prevention piece 21 is positioned eccentric with respect to the axis of the foundation member 20.
[0018]
And this floating prevention piece 21 is as follows.
That is, the drop-off prevention piece 15 on the side of the mounting leg 8 is engaged with the upper surface of the scaffold plate 3 and the base member 20 is fitted to the mounting leg 8, and then the base member 20 is attached to the outer peripheral rib 5 of the scaffold plate 3. The anti-floating piece 21 extends to the back surface of the scaffold plate 3 beyond the lower portion of the outer peripheral rib 5 and simultaneously contacts the back surface of the scaffold plate 3 from below. And a side recess 26 formed by the side surface of the intermediate rib 6.
[0019]
As described above, the mounting legs 8 of the fence body 9 are hollow and circular in cross section, and the base member 20 provided so as to be externally fitted thereto is also hollow and circular (cylindrical). Relative rotation with the base member 20 is possible.
The base member 20 is provided with a through hole 27 that penetrates in the diameter direction through the axial center position. As described above, since the levitation prevention piece 21 is positioned eccentrically with respect to the base member 20, the through hole 27 and the levitation prevention piece 21 do not interfere with each other in position.
[0020]
On the other hand, the mounting leg 8 of the fence body 9 is provided with two sets of through holes 28 and 29 at a height matching the through hole 27 of the base member 20. These through holes 28 and 29 are in a crossing relationship of 90 ° with each other when seen in a plan view. Then, when one of the through holes 28 is matched with the through hole 27 on the base member 20 side, the floating prevention piece 21 is just the side of the scaffold plate 3 as the orientation of the base member 20 with respect to the mounting leg 8. The position is set so as to be oriented.
These through holes 27, 28, and 29 are for attaching the clamp member 22.
[0021]
As shown in FIG. 7, the clamp member 22 has a male screw portion 32 provided at one end and a clamp shaft 34 provided with an L-shaped hook portion 33 at the other end, and a male screw portion 32 of the clamp shaft 34. And a nut member 35 to be screwed.
For this nut member 35, it is preferable to use, for example, a wing nut that can be manually rotated.
As shown in FIG. 1, the clamp member 22 has a hook portion with respect to the through holes 28 and 27 in a state where the through holes 28 of the mounting legs 8 in the fence body 9 and the through holes 27 of the base member 20 are matched. The nut 33 is inserted in a skewered manner from the male threaded portion 32 side while facing the protruding direction of the levitating prevention piece 21 (that is, the scaffold plate 3 side) and the hook tip is directed upward, and the nut is inserted into the male threaded portion 32 that penetrates from the opposite side. The member 35 is attached to the base member 20 side by screwing.
[0022]
Thereby, the hook portion 33 can be engaged with the lower end portion of the outer peripheral rib 5 of the scaffold plate 3. When the nut member 35 is turned in the direction in which the nut member 35 is screwed, the hook portion 33 is drawn toward the base member 20, so that the base member 20 is strongly brought into contact with the outer surface of the outer peripheral rib 5 as a reaction force. It becomes a state.
At this time, an action of sandwiching the outer peripheral rib 5 of the scaffold plate 3 between the side surface of the base member 20 and the hook portion 33 of the clamp member 22 and an action of the levitation prevention piece 21 contacting the back surface of the scaffold plate 3 occur. Therefore, the bracket portion 10 as a whole and the handrail device 1 as a whole including the fence body 9 can be fixed to the scaffold plate 3.
[0023]
In addition, in this 1st Embodiment, it is clear that this clamp member 22 also has the effect | action for attaching the bracket part 10 (base member 20) with respect to the attachment leg 8 of the fence main body 9. FIG.
Further, the clamp member 22 is detachable from the mounting leg 8 and the base member 20, and as described above, the clamping leg 22 has a 90 ° crossing relationship with each other when viewed in plan. Since the two through holes 28 and 29 are provided, the bracket portion 10 (base member 20) is rotated by 90 ° with respect to the mounting leg 8, and then the through hole 29 and the base member 20 of the mounting leg 8 are provided. Therefore, the clamp member 22 can be inserted into the through holes 29 and 27.
[0024]
If it does in this way, as shown with the dashed-two dotted line in FIG. 4, it will be in the state which twisted the bracket part 10 sideways with respect to the fence main body 9, and this handrail apparatus 1 can be made flat as a whole. Therefore, there is an advantage that the packing state when the handrail device 1 is packed as a product and the state at the time of transportation or storage can be made compact.
In this case, the combination of providing two sets of through holes 28 and 29 in the base member 20 of the bracket portion 10 and the clamp member 22 causes the bracket portion 10 to rotate with respect to the mounting leg 8 of the fence body 9. Thus, the rotation prevention mechanism 40 is configured so that the angles can be temporarily fixed at two orthogonal positions.
[0025]
As is clear from the above description, in this handrail device 1, the rail body 9 is stood along the outer peripheral portion of the scaffold plate 3 (or the connecting plate 4), and at this time, the drop-off prevention piece 15 is attached. Lock to the upper surface of the scaffold plate 3. At this time, the base member 20 of the bracket portion 10 is fitted to each mounting leg 8 of the fence body 9.
Then, the floating prevention piece 21 is faced in the bracket portion 10, and at the same time, the through hole 28 on the mounting leg 8 side and the through hole 27 on the base member 20 side are matched, and then the through holes 27, The clamp member 22 is attached to 28.
[0026]
Then, by tightening the nut member 35 in the clamp member 22, the attachment of the handrail device 1 to the scaffold plate 3 is completed.
As described above, in the bracket portion 10, regarding the positioning of the base member 20 with respect to the scaffold plate 3 and the fastening of the clamp member 22, a special corresponding structure (such as the positioning hole described in the prior art) with respect to the scaffold plate 3 side is required. Therefore, the positioning of the handrail device 1 can be changed arbitrarily, and there is an advantage that the detailed structure of the scaffold plate 3 and the connecting plate 4 to be attached is not selected (that is, versatility is wide).
[0027]
FIG. 8 thru | or FIG. 10 has shown the principal part about 2nd Embodiment of the handrail apparatus 1 which concerns on this invention.
In the handrail device 1 according to the second embodiment, the most different point from the above-described first embodiment resides in a detent mechanism 40 provided in the bracket portion 10.
That is, in the detent mechanism 40 employed in the second embodiment, a pair of front and rear flange portions 43 projecting tangentially to the base member 20 of the bracket portion 10 in a direction perpendicular to the protruding direction of the levitation prevention piece 21. , 44 is provided, and the clamp member 22 is attached in a form that penetrates both the flange portions 43, 44. Therefore, the clamp member 22 does not penetrate the base member 20 or the mounting leg 8 of the fence body 9.
[0028]
And the through-hole 45 is provided in the attachment leg 8 of the fence main body 9 only in one place of the circumferential direction. A bullet-like stopper projection 46 is fitted into the through hole 45 from the inside of the mounting leg 8, and the stopper projection 46 is urged outward by a leaf spring 47 bent in a V shape. .
On the other hand, the base member 20 of the bracket portion 10 is provided with through holes 50, 51, and 52 at three positions orthogonal to each other when seen in a plan view.
Due to such a structure, when the bracket portion 10 is twisted sideways with respect to the mounting leg 8 of the fence body 9, the through hole 51 of the foundation member 20 is resisted against the spring force of the leaf spring 47. It is only necessary to rotate the base member 20 around the mounting leg 8 in a desired direction as it is pushed in, and at this time, it is not necessary to remove the clamp member 22 one by one. In addition, since the stopper protrusion 46 comes to fit in the through-hole 50 or 52 after rotating the base member 20, the subsequent rotation prevention state is maintained.
[0029]
In addition, since the other detailed structure in this 2nd Embodiment, an effect, etc. are substantially the same as 1st Embodiment mentioned above, the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol to drawing.
FIG.11 and FIG.12 has shown the principal part about 3rd Embodiment of the handrail apparatus 1 which concerns on this invention.
The handrail device 1 according to the third embodiment is different from the handrail device 1 according to the second embodiment described above as means for urging the stopper protrusion 46, which is a component of the detent mechanism 40, in the radially outward direction. Instead of the leaf spring 47, a coil spring 47A is employed, and the pin 60 fixing the coil spring 47A also serves as a contact for positioning the stopper projection 46 in the handrail longitudinal direction.
[0030]
The coil spring 47 </ b> A is fixed to the inner wall surface of the mounting leg 8 made of a cylindrical body with a bolt nut 60 so that the expansion / contraction direction is directed to the diameter direction of the mounting leg 8. The stopper projection 46 is housed and fixed to the tip of the coil spring 47A so as to urge the stopper projection 46 in the radially outward direction.
In addition, since the other detailed structure in this 3rd Embodiment, an effect, etc. are substantially the same as 2nd Embodiment mentioned above, the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol to drawing.
[0031]
FIG.13 and FIG.14 has shown the principal part about 4th Embodiment of the handrail apparatus 1 which concerns on this invention.
The handrail device 1 of the fourth embodiment is also different from the above-described first embodiment in the specific configuration of the detent mechanism 40 provided in the bracket portion 10.
That is, the detent mechanism 40 employed in the fourth embodiment includes a push rod 61 provided so as to penetrate the lower end portion of the cylindrical mounting leg 8 in the diameter direction, and a tip portion of the rod 61. The formed hook portion 62, a coil spring 63 fitted to the middle portion of the rod 61, and a plurality of cutout grooves 64 into which the hook portion 62 of the rod 61 is detachably fitted.
[0032]
The push rod 61 has a base end portion 65 protruding from one side in the diameter direction of the mounting leg 8, and a hook portion 62 bent at the tip end portion protruding from the other side in the diameter direction of the mounting leg 8. The attachment leg 8 is penetrated in the diameter direction, and therefore the hook portion 62 on the distal end side can be moved outward in the diameter by pushing the base end portion 65 inward in the diameter.
The coil spring 63 is externally fitted to the push rod 61 in a compressed state so that its proximal end abuts on a pin 66 projecting in the middle of the push rod 61 and its distal end abuts on the cylindrical inner surface of the mounting leg 8. Thus, the push rod 61 is urged in a direction in which the hook 62 is always immersed inward. Further, the plurality of notch grooves 64 are formed by notching the lower end edge of the cylindrical base member 20 constituting the bracket portion 10 with a predetermined width and depth. The members 20 are arranged at intervals of 90 degrees in the circumferential direction.
[0033]
Therefore, in the detent mechanism 40 of the present embodiment, when the tip of the push rod 61 comes to a position corresponding to any of the cutout grooves 64 by rotating the bracket portion 10 relative to the mounting leg 8, The hook 62 is automatically fitted into the notch groove 64 by the urging force of the coil spring 63, thereby preventing the bracket 10 from rotating. On the other hand, the rotation of the bracket portion 10 can be released by pushing the proximal end portion 65 of the push rod 61 radially inward against the urging force of the coil spring 63.
[0034]
In addition, since the other detailed structure in this 4th Embodiment, an effect, etc. are substantially the same as that of above-mentioned 1st Embodiment, the detailed description is abbreviate | omitted by attaching | subjecting the same code | symbol to drawing.
By the way, the present invention is not limited to the above-described embodiments, and the detailed structure, member shape, member material, and the like can be appropriately changed according to the embodiment.
For example, the shape and structure of the fence body 9 are not limited in any way, and as shown in FIG. 15, the handrail bar 13 and the middle rail 14 form a rectangular frame shape, which is formed on both sides. You may make it overhang from the fence pillar 12, or may make the handrail bar 13 not protrude from the fence pillar 12 of both sides, as shown in FIG.
[0035]
【The invention's effect】
As is clear from the above description, the handrail device according to the present invention can be mounted without being affected by the details such as the structure and model of the other side of the mounting plate such as the scaffolding plate and the connecting plate. The mounting position with respect to the plate can be arbitrarily changed.
[Brief description of the drawings]
FIG. 1 is an enlarged sectional view taken along line BB in FIG.
FIG. 2 is a front view showing the first embodiment of the handrail device according to the present invention attached to the scaffold device.
FIG. 3 is an enlarged view taken along line AA in FIG. 2;
4 is an enlarged front view of the handrail device according to the first embodiment shown in FIG. 2. FIG.
FIG. 5 is an exploded view corresponding to FIG. 1;
6 is an enlarged view taken along the line CC in FIG. 5;
FIG. 7 is an enlarged side view showing a clamp member extracted and disassembled.
FIG. 8 is an enlarged side view showing a main part (bracket part) in a second embodiment of the handrail device according to the present invention.
9 is a view taken along the line DD in FIG.
10 is a cross-sectional view taken along line EE of FIG.
FIG. 11 is an enlarged bottom view showing a main part (bracket part) of a handrail device according to a third embodiment of the present invention.
12 is a view taken along the line FF in FIG. 11. FIG.
FIG. 13 is an enlarged side sectional view showing a main part (bracket part) in a fourth embodiment of a handrail device according to the present invention.
FIG. 14 is a bottom view of the main part.
FIG. 15 is a front view showing a modified example of the fence body.
FIG. 16 is a front view showing a further modified example of the fence body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Handrail device 3 Scaffold plate 5 Outer peripheral rib 8 Mounting leg 9 Fence main body 10 Bracket part 15 Drop-off prevention piece 20 Base member 21 Lifting prevention piece 22 Clamp member 24 Leg receiving hole 33 Hook part 40 Anti-rotation mechanism

Claims (3)

A railing body (9) which is a handrail device attached to the side of a scaffolding plate (3) provided with a downwardly facing outer peripheral rib (5) on the outer periphery, wherein a plurality of attachment legs (8) are provided. And a bracket portion (10) provided at the lower end of each mounting leg (8) of the fence body (9),
Each bracket portion (10) includes a base member (20) that can come into contact with an outer peripheral rib (5) of the scaffold plate (3) and an outer peripheral rib (5) from the base member (20). 5) to the bottom surface of the scaffold plate (3) beyond the lower side of the scaffolding plate (3), and from the bottom member (20) to the bottom surface of the outer peripheral rib (5) from the foundation member (20). And a clamp member (22) provided with a hook portion (33) that engages with the outer peripheral rib (5) at the tip thereof.
The handrail device, wherein the clamp member (22) is provided so that the hook portion (33) can be pulled toward the base member (20). The base member (20) of the bracket part (10) is provided with leg receiving holes (24) for inserting the mounting legs (8) of the fence body (9) and holding them relatively rotatably. One of the base member (20) of the section (10) or the mounting leg (8) of the fence body (9) is temporarily mounted at two positions orthogonal to the rotation angle of the bracket section (10) with respect to the mounting leg (8). The handrail device according to claim 1, further comprising a detent mechanism (40) for fixing. The said fence main body (9) is provided with the fall-off prevention piece (15) which can be latched by the upper surface of a scaffold board (3) with respect to the attachment leg (8). The handrail device according to claim 2.

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