JP4629212B2 - Simple door device for scaffolding - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a simple door device that is attached to an opening through which an operator enters and exits in a single pipe scaffold or a frame scaffold in a construction site.
[0002]
[Prior art]
In a single pipe scaffold and a frame scaffold provided at a construction site, an operator enters and exits through an opening surrounded by a construction material and a horizontal material on the side of the scaffold. In general, the opening is often opened. In some rare cases, ropes or cocoons are laid over this opening to prohibit access by anyone other than those involved.
[0003]
[Problems to be solved by the invention]
Considering the recent crime increasing tendency, it is not preferable not only for safety but also for crime prevention to open the scaffold doorway. Some kind of regulation is necessary. In this regard, in the case of the regulation means for transferring the above-mentioned ropes and cocoons, the psychological deterrence to third parties is weak.
Although a method of installing a door with strong psychological deterrence is conceivable, the structure of the door impairs the temporary function of the scaffold. For example, when a full-fledged door is installed on a frame scaffold, the quality and material of the door body and mounting members are not balanced with the pipe material constituting the scaffold, and handling becomes complicated and the total cost increases.
[0004]
An object of the present invention is to provide a simple door device that is easy to handle, such as assembly and attachment, and can be manufactured at a low cost, while having a door structure with strong psychological restraining force against intruders. .
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a simple door device for a scaffold installed at an entrance / exit in a gate-shaped frame of a scaffold formed by a building material and a horizontal member of the scaffold,
It consists of a door body that constitutes a single door and a frame that supports this door body.
The frame body has an upper frame portion facing the upper side portion of the door main body, and left and right side frame portions facing the left and right side portions of the door main body, and one side frame portion via a support member. The one side of the door body is supported rotatably,
The upper frame portion of the frame body is provided with a pair of left and right hook portions for suspending the upper frame portion by the horizontal member,
On both side frame portions of the frame body, an arm portion for connecting an intermediate portion or a lower portion of the side frame portion to the building material is attached at a predetermined position,
The arm portion has a holding fitting that extends to the building material so that the length thereof can be adjusted and holds the building material at a distal end portion,
The hook part and the arm part suspend and support the frame body and the door main body at a position spaced apart from the horizontal member and the building site, whereby the lower end of the side frame part and the lower side of the door main body are supported. Provided is a simple door device for a scaffold, wherein the lower end and the lower side are supported at a position above the lower end of the building material so as to form an open space below the portion .
The present invention is also a simple door device for a scaffold installed at an entrance / exit in a gate-shaped frame of a scaffold formed by a building material and a horizontal member of the scaffold,
It consists of a door body that constitutes a single door and a frame that supports this door body.
The frame body has an upper frame portion facing the upper side portion of the door main body, and left and right side frame portions facing the left and right side portions of the door main body, and one side frame portion via a support member. The one side of the door body is supported rotatably,
The upper frame portion of the frame body is provided with a pair of left and right hook portions for suspending the upper frame portion by the horizontal member,
On both side frame portions of the frame body, an arm portion for connecting an intermediate portion or a lower portion of the side frame portion to the building material is attached at a predetermined position, and a base end portion of the arm portion is provided with the arm portion. It is pivotally supported by the side frame so as to swing vertically.
A gripping bracket for gripping the building material is attached to the tip of the arm portion, and the gripping bracket can grip the building material even when the arm portion swings up and down. It is rotatably supported at the tip of the arm part,
The hook part and the arm part suspend and support the frame body and the door main body at a position spaced apart from the horizontal member and the building site, whereby the lower end of the side frame part and the lower side of the door main body are supported. Provided is a simple door device for a scaffold, wherein the lower end and the lower side are supported at a position above the lower end of the building material so as to form an open space below the portion .
[0006]
As for a door main body, it is desirable to provide the locking mechanism which maintains a closed door state in the other side part on the opposite side to the one side part supported via a support member. As the lock mechanism, lock mechanisms having various engagement structures can be employed by using the side part of the door main body and the frame body side frame part facing the side part. Also, the door surface is preferably not a plate surface but a lattice or mesh structure.
[0007]
The hook part is for suspending and supporting the door on the horizontal member which is a scaffold component, and provided on both left and right ends of the upper frame part, and has a fixing member for securing and fixing to the horizontal member. desirable. The hook portion preferably has a latching curved portion having a curvature larger than the diameter of the horizontal member, and is firmly fixed to the horizontal member by a fixing member. As an example of fixing by the fixing member, a hole is formed in the hook portion main body, particularly the latching curved portion, a fixing bolt is screwed into the hole, and the end of the fixing bolt is pressed against the outer circumferential surface of the horizontal member.
[0008]
The arm portion is for supporting the door on a building material that is a scaffold component, and is provided at an arbitrary position in the length direction of the left and right side frame portions. Desirably, it is arrange | positioned in the lower part or the intermediate part. The arm portion extends substantially horizontally when provided at the lower portion, and extends obliquely downward when provided at the intermediate portion.
[0009]
Specifically, the arm portion is, for example, a cylindrical body whose base end portion is fixed to the side frame portion, and a sliding body that is inserted into the cylindrical body and has the gripping metal fitting at the distal end protruding from the cylindrical body. And an adjusting member for adjusting the protruding length of the sliding body. For example, a clamp metal fitting is used as the holding metal fitting. The sliding body to be inserted into the cylindrical body may be an inner cylinder or a rod rod.
Further, the arm portion can be configured such that the base end portion is pivotally supported by the side frame portion while the holding fitting for holding the building material 1 is rotatably fixed to the tip end.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail based on illustrated embodiments.
FIG. 1 is a front view of a door device according to an embodiment of the present invention.
In the figure, reference numeral 1 (1L, 1R) is a building material on the left and right of the gate-type building frame that constitutes the scaffold, and 2 is a horizontal member that is horizontally mounted on the upper ends of both building materials 1. The door device is assembled to the opening 3 formed by the left and right building materials 1 and the horizontal members 2.
[0011]
The door device includes a door body 4 and a frame body 5 for supporting the door body 4 and attaching the door to the opening 3.
The door body 4 has a sufficient area to block the opening 3 to the extent that a human cannot pass through.
The upper and lower sides 41 and 42 and the left and right sides 43 and 44 that define the outer shape of the door body 4 are formed of an L-shaped angle material, and the inner side surrounded by these four sides is not a surface material. The band plate material is arranged in a lattice shape. A frame material extending in a cross shape at the center may be assembled, and a wire net may be stretched throughout.
[0012]
The frame body 5 includes left and right side frame portions 52 and 53 and an upper frame portion 51 which are disposed so as to surround both sides and an upper portion of the door body 4. In the drawing, the right side frame 53 is a closed side frame, and supports the door body 4 in a vertically movable position via the hinge member 6 so as to be rotatable. The hinge member 6 is provided with a pocket-shaped storage portion 61 in the right frame portion 53, and an angle bar 62 is fixed to the right side portion 44 of the door body 4 and the angle rod 62 is detachably inserted into the storage portion 61. Consists of. The left frame portion 52 has an engagement groove 92 that receives a lock piece 91 of the lock mechanism 9 described later (see FIG. 6) on the inner surface of the central portion in the length direction.
[0013]
The lower end of the hook member 7 made of a band plate material is fixed to the upper frame portion 51 of the frame body 5 at positions near both left and right end portions. As shown in FIG. 2, the hook member 7 has a curved portion 71 that is bent in an inverted U shape with a curvature required to be hooked to the scaffold horizontal member 2 at the top. There are various diameters of the scaffolding material 2 of the scaffold (for example, there is an outer diameter of 48.6 mm for a single pipe scaffold and 42.7 mm for a building scaffold). Therefore, the curvature of the curved portion 71 is set to a diameter that can be hooked to a large outer diameter horizontal member so as to be compatible with various horizontal members 2.
[0014]
A screw hole 72 is formed in the curved surface 71 on the plate surface. A set bolt 73 is screwed into the screw hole 72. The set bolt 73 passes through a gap formed between the inner surface of the curved portion 71 hooked on the horizontal member 2 and the outer surface of the horizontal member 2, and the tip is brought into contact with the outer peripheral surface of the horizontal member. 7 is prevented from rattling or moving.
[0015]
The number of the hook members 7 is not limited to two, and can be increased to three or more. Or if it is a wide thing, you may provide in the center of an upper frame part.
The screw hole 72 of the curved portion 71 may be a simple through hole without cutting a female screw. In the case of a through-hole, the curved portion can be bent by screwing and moving the set nut 74 to the set bolt 73, and the hook member 7 can be fixed to the horizontal member 2 using the elastic force generated thereby. .
[0016]
An arm member 8 extending in a substantially horizontal direction toward the building construction material 1 of the scaffold is attached to the lower ends of the left and right frame portions 52 and 53. As shown in FIG. 3, the arm member 8 has the base end portion of the outer cylinder 81 fixed to the side frame portions 52 and 53. A sliding body 82 made of a pipe is slidably fitted into the outer cylinder. A clamp fitting 83 that holds the building material 1 is fixed to the tip of the sliding body 82.
[0017]
The sliding body 82 can be adjusted in the protruding length from the outer cylinder by sliding, and is fixed at an arbitrary position. In the figure, reference numeral 84 denotes a long hole formed in the sliding body 82, and 85 denotes a bolt through hole formed in the outer cylinder 81. By tightening the fixing bolt 86 that passes through the long hole 84 and is inserted into the through hole 85, the protruding length of the sliding body 82 is adjusted within the length of the long hole 84. By providing a plurality of bolt through holes 85 formed in the outer cylindrical body 81 instead of a single one, the projecting length of the sliding body 82 can be adjusted in a plurality of stages.
[0018]
As the clamp fitting 83, a general fastening fitting used when joining scaffolding pipe members is applied.
The gripping bracket fixed to the tip of the sliding body is not limited to the clamp bracket, and other gripping brackets that grip the building material 1 using a plate material and a fastening material can be used, for example.
[0019]
Reference numeral 9 in the figure denotes a lock mechanism attached to the left side portion 43 (open side portion) of the door body 4 at the approximate center in the length direction. The lock mechanism 9 also serves as a handle.
As shown in FIGS. 5 and 6, the lock mechanism 9 locks and releases the door when the lock piece 91 enters or retracts into the engagement groove 92 of the left frame portion 52 described above. The lock piece 91 has U-shaped handles 93 and 94 attached to the front and back surfaces. The front-side handle 93 is inserted into a slide hole 95 provided in the front wall of the left side portion 43 made of an L-shaped angle member, and supports an upstanding lock piece 91 arranged on the back side of the left side portion. A receiving groove 96 that receives the engagement end of the lock piece 91 is formed in the side wall of the left side portion 43.
[0020]
FIG. 7 shows another embodiment of the lock mechanism 90.
In this example, the lock piece 901 does not move horizontally, but is rotated by approximately 90 degrees to enter or retract from the engagement groove 902. The slide hole 905 for moving the handle 903 is formed in a substantially ¼ arc shape as seen in the figure. The engaging groove 902 and the receiving groove are also formed in a position and a size corresponding to the rotation of the lock piece 901.
[0021]
Reference numeral 10 in the figure is a stopper piece attached to the left side portion 43 of the door body 4, and the opening degree of the door body 4 is flush with the left side portion 43 of the door body 4 and the left frame portion 52 of the frame body 5. Restrict the position to become.
[0022]
The attachment of the door device described above will be described.
An angle bar 62 is inserted into the storage portion 61 of the frame 5, and the door body 4 is attached to the frame 5 so as to be freely opened and closed. The hook member 7 of the frame body 5 is hung on the horizontal member 2 of the opening 3, and the set bolt 73 is tightened and fixed. After adjusting the protruding length of the sliding body 82 of the arm member 8 based on the distance between the side frame portions 52 and 53 of the frame body 5 and the building material 1, the fixing bolt 86 is tightened with a nut at a predetermined position. The building material 1 is gripped by the clamp fitting. After gripping and fixing the building material 1 with the clamp fitting 83, the sliding body 82 may be fixed at a predetermined length position.
[0023]
Thereby, the upper part of the door is supported and fixed to the horizontal member 2 by the hook portion 7, and the lower parts of both sides are supported and fixed by the arm member 8. Since the door body 4 is restricted by the stopper piece 10, the door body 4 can be opened and closed only in one direction. When the handle 93 is slid (horizontally moved or rotated) along the slide hole 95, the lock piece 91 is fitted into the engagement groove 92, and the closed state is maintained. Further, by adjusting the length of the arm member 8 in accordance with the width of the opening 3, it is possible to cope with various intervals between building materials.
[0024]
8 and 9 are a front view of an apparatus according to another embodiment of the present invention and a front view showing different usage states of the apparatus.
In the apparatus according to the present embodiment, when the interval between the building sites, that is, the opening width varies widely, particularly when the distance between the side frame parts 52 and 53 of the frame 5 and the building material 1 is extremely short ( It is a device that can be effectively attached to (see FIG. 9).
[0025]
In the apparatus shown in FIG. 1, the arm member has a proximal end portion fixed to the side frame portion and extends in the horizontal direction from the side frame portion. In this apparatus, the arm member 80 is supported by the side frame portions 52 and 53 so that the base end portion is rotatable. Specifically, as seen in the plan view of FIG. 10 and the explanatory view showing the usage state of FIG. 11, the arm member 80 has a bracket portion 801 bent in a substantially U-shaped cross section at the rear. The bracket portion 801 is pivoted around a bolt 802 inserted through the side frame portions 52, 53 while holding the side frame portions 52, 53 between both side walls of the open end. A nut 803 for fixing the bracket portion 801 to an appropriate rotation position is screwed to a bolt end protruding from the side wall of the bracket portion 801.
[0026]
A mounting plate 805 of the clamp metal fitting 804 protrudes from the front end surface of the bracket portion 801. A clamp fitting 804 is pivotally supported at the distal end of the mounting plate 805.
In the figure, reference numeral 806 denotes a thumbscrew screwed into one side wall of the bracket portion 801, and 807 denotes a projecting piece formed at a predetermined position on both the left and right side frames. The projecting piece 807 has a screw hole 808 into which the tip of the thumbscrew 806 can be screwed.
[0027]
The use state of the arm member will be described.
In FIG. 8, the bracket portion 801 is nut-tightened at the horizontal position so that the entire arm member extends in the horizontal direction. In this state, the horizontal distance from the proximal end to the distal end of the arm member 80 is maximized.
[0028]
In the case of FIG. 9, the space | interval between the side frame parts 52 and 53 and the building material 1 is extremely narrower than the space | interval of FIG. In the case of this opening width, the horizontal distance is adjusted to the distance between the side frame portion and the building material 1 by swinging the bracket portion 801 of the arm member 80 obliquely downward. The bracket portion 801 is fixed by tightening a nut at this swinging position. Since the tip of the wing screw 806 coincides with the screw hole 808 of the projecting piece 807, the arm member 80 is firmly fixed by tightening the wing screw 806 while being in a steeply inclined support state.
Even when the bracket portion 801 is swung upward or downward, the clamp fitting 804 at the tip is pivotally supported by the mounting plate 805, so that the building material 1 is always held in an appropriate posture as seen in FIG. .
[0029]
【The invention's effect】
The present invention has the following effects.
The device of the present invention includes a door body and a frame body that supports the door body so as to be freely opened and closed. Since the building material is gripped by the metal fittings, a door device can be provided that can securely support and fix the upper part and the left and right sides to the opening of the scaffold, and can perform a stable opening and closing operation while being easily assembled.
In addition, since the pipe material, the angle material, or the net material can be easily manufactured, the manufacturing cost can be reduced.
And since the opening part of a scaffold can fully be interrupted, the psychological suppression power with respect to the person who tries to penetrate | invades is also large.
[0030]
Furthermore, since the arm portion is pivotally supported so that the length thereof can be adjusted or swung freely at the base end, it can correspond to the side surface of the scaffold with various opening widths. Even if the space | interval between a part and a building material is an extremely small location, the support fixation by an arm part can be performed reliably.
[0031]
According to the invention of claim 3, since the closed state of the door can be maintained by the lock mechanism, a more effective door device can be provided by improving safety and preventing intrusion.
[Brief description of the drawings]
FIG. 1 is a front view of an apparatus according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a hook member of the apparatus of FIG.
3 is a plan view showing a partial cross section of an arm portion of the apparatus of FIG. 1; FIG.
4 is a cross-sectional view of a length adjusting portion of the arm portion in FIG. 3;
FIG. 5 is a front view of a locking mechanism of the apparatus of FIG.
6 is a cross-sectional view of the locking mechanism of FIG.
FIG. 7 is a front view showing a different example of the lock mechanism.
FIG. 8 is a front view of an apparatus according to another embodiment of the present invention.
FIG. 9 is a front view showing different usage states of the apparatus of FIG. 8;
10 is a plan view of an arm portion of the apparatus of FIGS. 8 and 9. FIG.
11 is an explanatory diagram showing a use state of the arm portion of FIG. 10;
[Explanation of symbols]
1 (1L, 1R) Left and right building material 2 of gate-type building frame Horizontal material 3 Opening 4 Door body 41, 42 Upper and lower sides 43, 44 of door body 5 Left and right sides 5 of door body 5 Frame 51 Frame Upper frame parts 52, 53 Left and right frame parts 6 of frame body Hinge member 7 Hook member 71 Curved part 72 Screw hole 73 Set bolt 74 Set nut 8 Arm member 81 Outer cylinder body 82 Slide body 83 Clamp fitting 84 Long hole 85 Bolt hole 9 Lock mechanism 91 Lock piece 92 Engagement groove 93, 94 Handle 95 Slide hole 96 Receiving groove 10 Stopper piece

Claims (9)

A scaffolding simple door device installed at an entrance / exit opening in a gate-shaped frame of a scaffold formed by a scaffold construction material and a horizontal member,
A door body which constitutes the single swing door, consists of a frame for supporting the door body,
The frame comprises an upper frame portion facing the upper side portion of the door body, and a right and left side edges portions facing the right and left side frame portions of the door body, one side frame part via a supporting member the one side portion of the door body rotatably supported Te,
The upper frame portion of the frame body, a pair of left and right hook parts for hanging the on the frame portion by the horizontal member is provided,
On both side frame portions of the frame body, an arm portion for connecting an intermediate portion or a lower portion of the side frame portion to the building material is attached at a predetermined position,
The arm portion may have a gripping bracket for gripping said Kenchi member to the tip portion extends freely adjust the length toward the Kenchi material,
The hook part and the arm part suspend and support the frame body and the door main body at a position spaced apart from the horizontal member and the building site, whereby the lower end of the side frame part and the lower side of the door main body are supported. A scaffolding simple door device , wherein the lower end and the lower side are supported at a position above the lower end of the building material so as to form an open space below the portion . A scaffolding simple door device installed at an entrance / exit opening in a gate-shaped frame of a scaffold formed by a scaffold construction material and a horizontal member,
A door body which constitutes the single swing door, consists of a frame for supporting the door body,
The frame comprises an upper frame portion facing the upper side portion of the door body, and a right and left side edges portions facing the right and left side frame portions of the door body, one side frame part via a supporting member the one side portion of the door body rotatably supported Te,
The upper frame portion of the frame body, a pair of left and right hook parts for hanging the on the frame portion by the horizontal member is provided,
On both side frame portions of the frame body, an arm portion for connecting an intermediate portion or a lower portion of the side frame portion to the building material is attached at a predetermined position, and a base end portion of the arm portion is provided with the arm portion. It is pivotally supported by the side frame so as to swing vertically .
A gripping bracket for gripping the building material is attached to the tip of the arm portion , and the gripping bracket can grip the building material even when the arm portion swings up and down. It is rotatably supported at the tip of the arm part,
The hook part and the arm part suspend and support the frame body and the door main body at a position spaced apart from the horizontal member and the building site, whereby the lower end of the side frame part and the lower side of the door main body are supported. A scaffolding simple door device , wherein the lower end and the lower side are supported at a position above the lower end of the building material so as to form an open space below the portion . The door body is provided with a lock mechanism that maintains a closed state on the other side of the door body opposite to the one side of the door body supported via a support member.
The simple door device for a scaffold according to claim 1 or 2. The door body has a lattice or mesh shape on the door surface.
The simple door device for a scaffold according to claim 1 or 2. The hook portion is provided at both left and right end portions of the upper frame portion, and has a fixing member for latching and fixing to the horizontal member.
The simple door device for a scaffold according to claim 1 or 2. The fixing member includes a hole formed in the hook body, and a stop bolt that is screwed into the hole and presses the tip to the outer periphery of the horizontal member.
The simple door device for a scaffold according to claim 5. The arm portion is disposed to extend substantially horizontally in the lower part of the left and right side frame portions.
The simple door device for a scaffold according to claim 1. The arm portion is disposed so as to extend obliquely downward at a substantially middle portion between the left and right side frame portions.
The simple door device for a scaffold according to claim 1. The arm portion includes a cylindrical body having a base end fixed to the side frame portion, a sliding body that is inserted into the cylindrical body and has the gripping metal fitting at a distal end protruding from the cylindrical body, and a protruding length of the sliding body. An adjustment member for adjusting the thickness,
A simple door device for a scaffold according to any one of claims 1, 7, and 8.

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