JP2007247292A - Extendable scaffold board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an expandable scaffold board which is easy to grip and carry when the place of use is changed on a working job site etc. <P>SOLUTION: This expandable scaffold board comprises a pair of extendably/contractibly combined scaffold board bodies 2 and 3; each of the scaffold board bodies 2 and 3 is provided with a plurality of scaffold board members 4, 5, 6, 7 and 8 which are arranged in parallel with one another at constant intervals in the width direction of the scaffold board; the scaffold board members 4, 5, 5, 5 and 5 of one scaffold board body 2 are arranged among the scaffold board members 6, 7, 7, 7 and 8 of the other scaffold board body 3 in such a manner as to be relatively movable in the length direction of the scaffold board; and the two outermost-side scaffold board members 4 and 8 among all the scaffold board members 4, 5, 6, 7 and 8 of both the scaffold board bodies 2 and 3 are each composed of a lip channel, and arranged in such a manner that the side of the opening O of the lip channel is directed outward. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a telescopic scaffolding plate used for a scaffold at a construction site or other work place, and in particular, comprises a pair of scaffolding plate main bodies, and each scaffolding plate main body is spaced apart in the width direction of the scaffolding plate. It has a plurality of scaffolding plate members arranged in parallel to each other, and the scaffolding plate member of one scaffolding plate body is disposed between the scaffolding plate members of the other scaffolding plate body so as to be relatively movable in the length direction of the scaffolding plate. It relates to a telescopic scaffolding board.

As a conventional telescopic scaffold board, there exist some which were described in the following patent document 1, for example. This telescoping scaffolding plate is composed of a pair of scaffolding plate bodies combined in a freely stretchable manner. The scaffold plate member of one scaffold plate body is disposed between the scaffold plate members of the other scaffold plate body so as to be relatively movable in the length direction of the scaffold plate, The length of the scaffolding plate can be adjusted by stretching the body.
JP-A-8-246663

  This type of telescopic scaffolding plate generally has a weight of around 10 kg. When moving the place of use at a work site or the like, the operator can leave the scaffolding plate in a contracted or extended state, The width direction end on the center side in the length direction is grasped and moved by hand. However, in the above-mentioned conventional telescopic scaffolding plate, each scaffold plate member is made of a rectangular tube-shaped material, so the length direction of the scaffolding plate There was no part where the finger was put on the scaffold plate member when grasping both ends in the width direction on the center side, and there was a problem that it was very difficult to grasp and carry.

  In view of the above problems, an object of the present invention is to provide an extendable scaffolding plate that is easy to grasp and carry when moving a place of use at a work site or the like.

  Means for solving the above problems will be described with reference numerals in the embodiments described later. The invention according to claim 1 is composed of a pair of scaffold plate bodies 2 and 3 that are stretchably combined. The scaffold board main bodies 2 and 3 have a plurality of scaffold board members 4, 5, 6, 7 and 8 arranged in parallel to each other at a predetermined interval in the width direction of the scaffold board, and the scaffold board of one scaffold board main body 2 The telescopic scaffold plate in which the members 4, 5, 5, 5, and 5 are disposed between the scaffold plate members 6, 7, 7, 7, and 8 of the other scaffold plate body 3 so as to be relatively movable in the length direction of the scaffold plate. The two outermost scaffold plate members 4, 8 of all the scaffold plate members 4, 5, 6, 7, 8 of the two scaffold plate bodies 2, 3 are each made of a grooved material with a lip, The groove member is arranged with the opening O side facing outward.

  A second aspect of the present invention is the telescoping scaffolding plate according to the first aspect, wherein the scaffolding plate members 4 and 8 made of the grooved material with lips are provided with reinforcing protrusions projecting inwardly on the bottom wall portion 22 of the grooved material. The strip portion 24 is formed over the entire length in the length direction of the scaffold plate member.

  According to a third aspect of the present invention, in the telescopic scaffolding board according to the first or second aspect, handles 25 and 26 for telescopic operation are provided at both ends of the scaffolding board length direction of the scaffolding board main bodies 2 and 3, respectively. It is characterized by being.

  According to a fourth aspect of the present invention, in the telescoping scaffolding plate according to the third aspect, each handle 25, 26 is a scaffolding plate member 4, 5, 5, 5, 5 (6, 7) constituting each scaffolding plate body 2,3. 7, 7, 8) is composed of a rod-like body placed horizontally between the tip ends of the scaffold plate members 4, 5 (6, 8) on both ends in the width direction of the scaffold plate, and the scaffold plate members 4, 5 on both ends (6, 8) intermediate scaffold plate members 5, 5, 5 (7, 7, 7) in the middle are respectively cut off at the distal ends, and the scaffold plate members 5, 5, 5 (7, 7) from which the distal portions are excised. 7, 7) and the scaffold plate members 4, 5 (6, 8) on both ends thereof are connected to each other by a band plate 10.

  The effect of the invention by the above-described solution means will be described with reference numerals of the embodiments described later. The telescopic scaffold board 1 of the invention according to claim 1 includes all the scaffold board members of the two scaffold board bodies 2 and 3. The two outermost scaffold plate members 4 and 8 of 4, 5, 6, 7 and 8 are each made of a grooved material with a lip, and are arranged with the opening O side of the grooved material facing outward. Thus, when the telescopic scaffold 1 is moved to a required place of use at a work site or the like, the center of the scaffold 1 in the longitudinal direction is such that the upper and lower surfaces of the scaffold 1 are substantially perpendicular to the horizontal plane. By grasping the lip portion 23 of the scaffold plate member 8 (or 4) made of the grooved material with a lip located on the uppermost side on the portion side, the lip portion 23 becomes an effective clue portion, and the scaffold plate 1 is It can be easily carried to the place.

  According to the second aspect of the present invention, the scaffolding plate members 4, 8 made of the grooved material with lips have a reinforcing ridge 24 projecting inwardly on the bottom wall portion 22 of the grooved material. Since it is formed over the entire length in the length direction, sufficient rigidity is secured to the scaffolding plate members 4, 8 by the reinforcing ridges 24, and accordingly, when the telescopic scaffolding plate 1 is carried, the entire scaffolding plate member 4 , 5, 6, 7 and 8, even if the two outermost scaffold plate members 4 and 8 are frequently gripped, the scaffold plate members 4 and 8 are not deformed, The service life can be extended.

  According to the third aspect of the present invention, the scaffolding plate main bodies 2 and 3 can be expanded and contracted by providing the handlebars 25 and 26 for expansion and contraction operations at both ends of the scaffolding plate main bodies 2 and 3 in the length direction of the scaffolding plate. It can be done easily and easily.

  According to the invention of claim 4, since the handles 25, 26 are rod-shaped bodies, the handle plates 25, 26 are easy to grasp, and the expansion and contraction operation of the scaffold plate bodies 2, 3 can be performed more easily. 3 can be accurately attached to both ends of the scaffold plate in the length direction without being bulky.

  A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 (a) is an overall schematic perspective view of the telescopic scaffolding plate 1 according to the present invention, and (b) is an arrow X in (a). 2 is an enlarged cross-sectional view taken along line YY in FIG. 1B. The extendable scaffolding plate 1 is composed of a pair of scaffolding plate bodies 2 and 3 which are combined so as to be stretchable in the length direction of the scaffolding plate, and both the scaffolding plate bodies 2 and 3 are shown in FIG. 1 (b) and FIG. As can be seen, a total of ten scaffold plate members 4, 5, 6, 7 and 8 each of which is arranged in parallel with each other at a predetermined interval in the width direction of the scaffold plate, Scaffold plate members 4, 5, 5, 5, 5 of the plate body 2 are disposed so as to be relatively movable between the scaffold plate members 6, 7, 7, 7, 8 of the other scaffold plate body 3 in the length direction of the scaffold plate. Has been.

  One end of the scaffold plate members 4, 5, 5, 5, 5 in one scaffold plate body 2 in the longitudinal direction and the scaffold plate members 6, 7, 7, 7, 8 of the other scaffold plate body 3 One end in the length direction is connected to each other by the band plates 9 and 10, and the other end in the length direction of the scaffold plate of the scaffold plate members 4, 5, 5, 5, 5 of one scaffold plate body 2 and The other end of the scaffold plate members 6, 7, 7, 7, and 8 in the other scaffold plate body 3 in the length direction of the scaffold plate extends over all the scaffold plate members 4, 5, 6, 7, and 8, respectively. The band plates 11 and 12 are externally connected to each other.

  FIG. 2 shows a cross-sectional structure of a portion where the other end portions of the scaffold plate members 4, 5, 5, 5, 5 of one scaffold plate body 2 are interconnected by one band plate 11. The band plate 11 is screwed (or riveted) to the other end of each of the scaffold plate members 4, 5, 5, 5 and 5 of one scaffold plate body 2, and the other band plate 12 is not shown. However, screws 13 (or rivets) are fixed to the other end portions of the scaffold plate members 6, 7, 7, 7, 8 of the other scaffold plate body 3, so that both of the scaffold plate bodies 2, 3 are the length of the scaffold plate The scaffolding plate 8 is configured to be freely movable in the longitudinal direction.

As shown in FIGS. 1 and 2, telescopic operation handles 25 and 26 each having a rod-like body are provided at both ends of the scaffold plate main bodies 2 and 3 in the length direction of the scaffold plate. That is, (b) of FIG.
Shows a handle 26 provided at one end of the scaffold plate body 3, and this handle 26 is the opposite ends of the scaffold plate members 6, 7, 7, 7, 8 constituting the scaffold plate body 3 in the scaffold plate width direction. The scaffold plate members 6 and 8 are horizontally mounted via brackets 27 and 27. As described above, since the handle 26 is horizontally mounted between the distal ends of the scaffold plate members 6 and 8 at both ends of the scaffold plate body 3 in the scaffold plate width direction, the distal ends of the intermediate scaffold plate members 7, 7, 7 are respectively provided. The scaffold plate members 7, 7, 7 with their tip portions removed and the scaffold plate members 6, 8 on both ends thereof are connected to each other by the band plate 10. The attachment structure of the handle 25 provided at one end of the scaffold board body 2 is the same as that of the handle 26.

As described above, by providing the handles 25 and 26 for extending / contracting operation at both ends of the scaffolding plate main bodies 2 and 3 in the length direction of the scaffolding plate, the expansion and contraction operation of the scaffolding plate main bodies 2 and 3 can be performed easily and easily. it can. Moreover, since the handles 25 and 26 are rod-shaped bodies, they can be easily grasped and the scaffolding plate bodies 2 and 3 can be more easily expanded and contracted. Further, the handles 25 and 26 made of the rod-shaped body are formed as shown in FIG.
As shown in FIG. 2, the scaffold plate members 4, 5 (6, 7, 5, 5, 5 (6, 7, 7, 7, 8) constituting the scaffold plate body 3 on both sides in the width direction of the scaffold plate. 6 and 8), the scaffolding plate main bodies 2 and 3 can be accurately attached without being bulky at both ends of the scaffolding plate length direction.

  A scaffold plate member 4 on one end side in the scaffold plate width direction of the one scaffold plate body 2 and a scaffold plate member 6 on one end side in the scaffold plate width direction of the other scaffold plate body 3 facing the scaffold plate member 6. In between, a lock device R for locking both scaffold board main bodies 2 and 3 in a required expansion / contraction position is interposed. The telescopic scaffolding plate 1 has the same shape on the upper surface side and the lower surface side, and can be used with either the upper or lower side facing upward.

  All the scaffold plate members 4, 5, 6, 7, and 8 constituting the pair of scaffold plate bodies 2 and 3 are each made of an aluminum extrusion mold material, and all these scaffold plate members 4, 5, 6, 7, and 8 are formed. 2, the two outermost scaffold plate members 4, 8 in the width direction of the scaffold plate are each made of a grooved material with a lip, as shown in FIG. 2, with the opening O side of the grooved material facing outward. Thus, the lip portion 23 of the scaffold plate members 4 and 8 made of the grooved material with lips is used as a cue portion (see FIG. 5).

  That is, the two outermost scaffold plate members 4 and 8 out of all the scaffold plate members 4, 5, 6, 7 and 8 are both made of a grooved material with a lip having the same cross-sectional shape. ) And (b). The scaffolding plate members 4 and 8 are projected in a substantially L shape inward from the bottom wall portion 22 that connects the opposite side wall portions 21 and 21 and both side wall portions 21 and 21 and the distal end portion of each side wall portion 21. The lip portion 23 forms a groove shape, and the bottom wall portion 22 has a reinforcing ridge portion 24 formed at the center in the width direction.

  As can be seen from FIG. 2, the scaffold plate member 5 constituting a part of one scaffold plate body 2 and the scaffold plate member 7 constituting a part of the other scaffold plate body 3 have the same sectional shape. FIG. 5 shows an enlarged cross-sectional shape of the scaffold plate members 5, 7, which is formed by an extruded mold material, that is, a rectangular tube-shaped mold material whose section is a vertically long rectangular shape.

  FIG. 4A is a perspective view showing a scaffold plate member 6 on one end side in the scaffold plate width direction of the other scaffold plate body 3 facing the scaffold plate member 4 on one end side in the scaffold plate width direction in one scaffold plate body 2. FIG. 2B is a cross-sectional view thereof. The scaffold plate member 6 includes a pair of cylindrical portions 6a and 6a on both sides and a connecting wall portion 6b that connects the cylindrical portions 6a and 6a.

  When the telescopic scaffolding plate 1 configured as described above is moved to a required place of use at a work site or the like, as shown in FIG. 5, with the upper and lower surfaces of the scaffolding plate 1 being perpendicular to the horizontal plane, By grasping the lip portion 23 of the scaffold plate member 8 (or 4) made of a grooved material with a lip located on the uppermost side in the longitudinal direction center portion side of the scaffold plate 1, the lip portion 23 becomes an effective clue portion. Thus, the scaffold board 1 can be easily carried to a predetermined place. In this case, the scaffold plate 1 may be in an expanded state as shown in FIG. 1 (a) or in a completely contracted state.

  In FIG. 5, it seems that one index finger is applied to the back side of the lip portion 23 of the uppermost scaffold plate member 8 and the scaffold plate member 8 is gripped by the index finger and thumb. In the state where the four fingers of the index finger, the middle finger, the ring finger and the little finger are inserted into the back side of the lip portion 23 of the scaffold plate member 8 and the thumb is applied to the outer surface of the side wall portion 21, the scaffold plate member 8 To grab.

(a) is the whole schematic perspective view of the expansion-contraction type scaffolding plate concerning this invention, (b) is an enlarged view of the part shown by the arrow X of (a). It is the YY line expanded sectional view of (b) of FIG. The perspective view which shows the outermost scaffold board member among all the scaffold board members which comprise both scaffold board main bodies, (b) is the sectional drawing. (a) is a perspective view showing a scaffold plate member at one end side in the scaffold plate width direction of the other scaffold plate body facing the scaffold plate member at one end side in the scaffold plate width direction at one scaffold plate body, and (b) is its perspective view. It is sectional drawing. It is sectional drawing which shows the holding | grip state of the scaffold board member at the time of carrying this expansion-contraction type scaffold board.

Explanation of symbols

1 Telescoping scaffolding plates 2, 3 Scaffolding plate body 4 Scaffolding plate member (outermost scaffolding plate member)
5 Scaffold board member 6 Scaffold board member 7 Scaffold board member 8 Scaffold board member (outermost scaffold board member)
23. Lip parts 25 and 26 of the scaffold plate member made of a grooved material with a lip.

Claims (4)

  It consists of a pair of scaffolding plate bodies combined in a stretchable manner, and each scaffolding plate body has a plurality of scaffolding plate members arranged parallel to each other at a certain interval in the scaffolding plate width direction. In a telescopic scaffolding plate in which the scaffolding plate member is disposed between the scaffolding plate members of the other scaffolding plate body so as to be relatively movable in the length direction of the scaffolding plate, the outermost of all the scaffolding plate members of both scaffolding plate bodies The two scaffolding plate members are each made of a grooved material with a lip, and are arranged with the opening side of the grooved material facing outward.   The scaffold plate member made of a grooved material with a lip is characterized in that a reinforcing ridge that protrudes inward is formed on the bottom wall portion of the grooved material over the entire length of the scaffold plate member. The telescopic scaffold board according to claim 1.   The telescopic scaffold board according to claim 1 or 2, wherein handles for telescopic operation are provided at both ends of the scaffold board main body in the length direction of the scaffold board. Each handle is composed of a rod-like body that is laid between the distal ends of the scaffold plate members on both sides in the width direction of the scaffold plate of the scaffold plate member constituting the scaffold plate body, and an intermediate scaffold between the scaffold plate members on both ends. The telescoping scaffolding plate according to claim 3, wherein the front end portions of the plate members are cut off, and the scaffold plate members from which the front end portions are cut off and the scaffold plate members on both ends thereof are connected to each other by band plates.

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