JP2011001704A - Baseboard for scaffolding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a baseboard for scaffolding, which can be easily attached to/detached from a scaffolding board.SOLUTION: This baseboard is attached onto a side edge of the scaffolding board 1 which is laid between cross members 3 and 3 of building frames 2 and 2 for the scaffolding. End frames 8 and 9, which have a pair of locking recesses 10a and 10a and a pair of locking recesses 11a and 11a, locked on the side of mutually opposed surfaces of both the cross members 3, respectively, are arranged at both the ends of a baseboard body 5. The one end-side end frame 8 is a movable end frame which has an upper end pivotally attached to the baseboard body 5, and the locking recesses 10a and 10a of which can be tilted in the retreating direction of reducing a distance from the locking recesses 11a and 11a of the other end-side end frame 9. The end frame 8 is held in a vertical attitude via a spring 13 in a normal condition. The other end-side end frame 9 is a fixed end frame which is fixed to an end of the baseboard body 5. The movable end frame 8 is tilted in the retreating direction against the spring 13 in the state of locking the locking recesses 11a and 11a of the fixed end frame 9 to the cross member 3, so that the locking recesses 10a and 10a can be locked to the cross member 3.

Description

  TECHNICAL FIELD The present invention relates to a scaffolding baseboard that is attached in a standing posture on a side edge of a scaffolding plate temporarily installed at a construction site or the like.

  When working at a high place on a scaffolding board at a construction site, etc., various construction items and tools such as bolts, nuts, metal fittings, etc., and various materials and tools placed at the feet of the worker are accidentally dropped. And there is always a danger of accidents. Therefore, baseboards are attached on the side edges of the scaffolding board.

  As a conventional scaffolding baseboard, for example, there is one described in Patent Document 1 below. This is because a plurality of slide lock fittings are mounted on the outer surface side of the skirting board body so that each slide lock fitting slides up and down with respect to the skirting board body by rotating the lock bolt. The lower part of the base plate has a lock piece that faces the lower surface of the skirting board body, and the slide lock bracket is fitted with the side edge of the scaffolding plate between the lock piece and the lower surface of the skirting board body. By tightening the lock bolt so as to slide upward, the skirting board main body is fixed in a vertical posture.

JP 2002-227402 A

  The conventional scaffold skirting board as described above has a problem that it is troublesome to attach and detach the skirting board body from the scaffolding board and takes time and effort.

  In view of the above circumstances, an object of the present invention is to provide a scaffolding skirting board in which attachment and detachment of a skirting board main body to and from a scaffolding plate can be performed easily and easily.

  Means for solving the above problems will be described with reference numerals of the embodiments described later. The invention according to claim 1 is hung between the cross members 3 and 3 of the opposing building frames 2 and 2. A pair of baseboards attached in a standing posture on the side edge of the passed scaffolding plate 1, and a pair of both ends of the baseboard body 5 that are locked to the opposing surfaces of the both side members 3. The end frames 8 and 9 having the respective locking recesses 10a, 10a, 11a and 11a are disposed, and the end frame 8 on one end side is pivotally attached to the skirting board body 5, The recess 10a, 10a is a movable end frame that can be tilted in the backward direction to shorten the distance from the locking recess 11a, 11a of the end frame 9 on the other end side. The end frame 9 on the other end side is held in a vertical posture orthogonal to the longitudinal direction, and is a fixed end frame fixed to the end of the baseboard body 5. In a state where the locking recesses 11a and 11a of the fixed end frame 9 are locked to the cross member 3, the locking end recess 8 is tilted in the backward direction against the springs 13 and 23, thereby locking the locking recesses 11a and 11a. 10a, 10a is locked to the cross member 3, and the skirting board main body 5 is fixed on the side edge of the scaffolding board 1 in a standing posture.

  A second aspect of the present invention is the scaffolding baseboard according to the first aspect, wherein the locking means 22 for locking the movable end frame 8 in a vertical posture orthogonal to the longitudinal direction of the baseboard main body 5 includes the movable end frame 8 and the width. It is provided between the wood main body 5.

  Claim 3 is the skirting board for scaffolding board according to claim 2, wherein the locking means 22 includes a support shaft part 26 that is pivotally supported through the base board body 5, and a width from the tip of the support shaft part 26. The operation shaft portion 27 projecting at right angles along the side surface of the wood main body 5, and projecting in parallel with the support shaft portion 26 from the distal end portion of the operation shaft portion 27, the width and the width of the movable end frame 8 in the vertical posture A lock pin 24 comprising a lock shaft 29 detachably engageable with a lock hole 28 penetrating the overlapped portion with the wood body 5, and a support shaft 26 of the lock pin 24 are always locked. The portion 29 is constituted by a spring 25 that is urged so as to engage with the lock hole 28.

  A fourth aspect of the present invention is the scaffold board skirting board according to any one of the first to third aspects, wherein the pair of locking recesses 10a, 10a, 11a, 11a of the end frame 8, 9 is the scaffold building frame 2. It is characterized in that the scaffolding plate 1 locked to the cross member 3 is locked on both sides of the hook F.

  Claim 5 is the scaffold board skirting board according to any one of claims 1 to 4, wherein the movable end frame 8 is provided with a finger insertion hole 19 for inserting a finger for tilting operation. It is characterized by.

  The sixth aspect of the present invention is the scaffold board skirting board according to any one of the first to fifth aspects, wherein each of the end frames 8, 9 is formed by a side plate a, a and a connecting plate b connecting them. It consists of a frame, it is attached so that the connection board b may oppose the end surface of the baseboard main body 5, and it has a pair of latching recessed parts 10a, 10a, 11a, 11a in the lower end part of each side board a, a, respectively. Locking pieces 10, 10, 11, 11 are formed.

  A seventh aspect of the present invention is the scaffold board skirting board according to any one of the first to sixth aspects, wherein each of the end frames 8, 9 is composed of inner and outer side plates a, a and a connecting plate b connecting the side plates a, a. A plurality of positioning holes 20 are provided in one of the inner and outer plates a and a forming the end frames 8 and 9, and the base plate 4 is formed on the other side plate a. A plurality of positioning projections 21 are provided for fitting into the positioning holes 20 of the one side plate a when the movable end frame 8 and the fixed end frame 9 are stacked in a plurality of stages so that the movable end frame 8 and the fixed end frame 9 overlap each other. It is characterized by.

  The effect of the invention by the above solution will be described with reference numerals of the embodiments described later. According to the invention according to claim 1, the fixed end portion is used to attach the scaffolding baseboard 4 to the scaffolding board 1. After locking the pair of locking recesses 11a, 11a of the frame 9 to the cross member 3 of one scaffolding building frame 2, the opposite movable end frame 8 is tilted in the backward direction against the spring 13, From a state in which the distance between the locking recess 10a on the movable end frame 8 side and the locking recess 11a on the fixed end frame 9 side is shortened, the pair of locking recesses 10a and 10a of the movable end frame 8 is connected to the other. By locking to the cross member 3 of the scaffolding frame 2, it can be easily and easily attached, and the pair of locking recesses 10 a, 10 a, 11 a, 11 a of the end frames 8, 9 are attached to the cross member 3. Since it locks, the baseboard main body 5 can be stably fixed on the side edge part of the scaffold board 1.

  In addition, when the locking recess 11a of the fixed end frame 9 is locked to the cross member 3 as described above, the spring 13 is locked when the locking recess 10a on the movable end frame 8 side is locked to the cross member 3. The engaging recess 11a on the fixed end frame 9 side is also elastically locked to the cross member 3 by the urging force, so that the engaging recess 10a on the movable end frame 8 side and the fixed end frame 9 side are engaged. The stop recesses 11a are stretched in opposite directions, so that the skirting board main body 5 can be stably fixed on the side edge of the scaffolding board 1 in a standing posture.

  When the scaffolding skirting board 4 is removed from the scaffolding board 1, after the movable end frame 8 is tilted in the backward direction in the reverse order of the above attachment, the locking recess 10 a is removed from the cross member 3. If the fixed end frame 9 is removed from the cross member 3, it can be easily and easily removed.

  According to the second aspect of the present invention, since the locking means 22 for locking the movable end frame 8 in the vertical posture is interposed between the movable end frame 8 and the baseboard body 5, If the movable end frame 8 is in the locked state, in this locked state, the movable end frame 8 is fixed so as not to be tiltable with respect to the skirting board main body 5, so that a large upward force is applied to the movable end frame 8 side. Even if it acts, there is no risk that the movable end frame 8 tilts in the backward direction against the urging force of the leaf spring 23 and the locking recess 10a is detached from the cross member 3.

  According to the third aspect of the present invention, the lock means 22 penetrates the overlapping portion of the support shaft portion 26, the operation shaft portion 27, and the movable end frame 8 side in the vertical posture and the baseboard body 5. The locking shaft portion 29, which is detachably engageable with the lock hole 28, and the hook-shaped lock pin 24, and the support shaft portion 26 of the lock pin 24, are always engaged with the lock hole 28. Since the spring 25 is urged to enter, the structure of the lock means 22 is simple and easy to manufacture.

  According to the invention which concerns on Claim 4, a pair of latching recessed part 10a, 10a, 11a, 11a of each edge part frame 8 and 9 is the scaffold board | plate 1 latched by the cross member 3 of the building frame 2 for scaffolds. Since the structure is such that the hook F is held on both sides of the hook F, the structure of the lower ends of the end frames 8 and 9 is simplified in manufacturing, and the pair of locking recesses 10a, 10a, 11a, and 11a are laterally moved. It can be stably locked to the material 3, and the hook F of the scaffolding plate 1 and the locking recesses 10a, 10a, 11a, 11a interfere with each other when the skirting board 4 is continuously attached side by side. There is nothing, and they can be locked properly.

  According to the invention of claim 5, since the finger insertion hole 19 is provided in the movable end frame 8, the tilting operation is easily performed by inserting the finger when the movable end frame 8 is tilted by hand. be able to.

  According to the invention which concerns on Claim 6, each edge part frame 8 and 9 consists of a U-shaped frame formed by the both-sides board a and a and the connection board b, and the connection board b of the baseboard main body 5 is used. Since it is attached so as to face the end face, a pair of locking pieces 10, 10, 11, 11 having locking recesses 10 a, 10 a, 11 a, 11 a are formed at the lower ends of the side plates a, a respectively. The end frames 8 and 9 can be easily manufactured and can be easily attached to the end frames 8 and 9.

  According to the seventh aspect of the present invention, a plurality of positioning holes 20 are provided in one of the inner and outer plates a and a forming the end frames 8 and 9 each having a U-shaped frame, and the other side plate a is provided in the other side plate a. A plurality of positioning projections 21 are provided for fitting into the positioning holes 20 of the one side plate a when the base plate 4 is turned sideways and stacked in a plurality of stages so that the movable end frame 8 and the fixed end frame 9 overlap each other. Therefore, when transporting the skirting boards 4 by trucks or storing them in a factory, etc., when stacking a plurality of skirting boards 4 in a horizontal direction, the lower side end frames 8 and 9 adjacent to each other are vertically By fitting the positioning projections 21 into the positioning holes 20 of the upper side end frames 8 and 9, the baseboards 4 can be stacked in an aligned state and load collapse can be prevented.

(a) is the front view which looked at the baseboard for scaffold boards concerning this invention from the outer surface side of the baseboard main body, (b) is a top view. (a) is an enlarged front view of the baseboard for the scaffolding board shown in FIG. 1, (b) is a bottom view, and (c) is a right side view. (a) is a perspective view of the movable end frame part of the scaffold board attached to the scaffold board as seen from the inside of the base board body, and (b) is the width of the fixed end frame part of the scaffold board base plate. It is the perspective view seen from the inner side of a wooden main body. (a) shows a method for attaching a baseboard for a scaffolding board according to the present invention, a front view seen from the outer surface side of the baseboard body, (b) for a scaffolding board attached continuously to the scaffolding board next to each other. An enlarged front view of the skirting board viewed from the outer surface side of the skirting board body, (c) is a plan view of (b). It is a front view which shows the state which piled up multiple steps | paragraphs with the baseboard for scaffold boards turned sideways. It is the perspective view which looked at the movable end part frame part of the baseboard for scaffold boards provided with the locking means from the inner side of the baseboard main body. It is the perspective view which looked at the movable end part frame part of the baseboard for scaffold boards provided with the locking means from the outer side of the baseboard main body. (a) is an enlarged front view of the movable end frame portion of the baseboard for the scaffolding board provided with the locking means as viewed from the inside of the baseboard body, (b) is a cross-sectional view taken along the line XX of (a), (c) is the YY sectional view taken on the line of (a). (a) And (b) is explanatory drawing which shows the effect | action of the movable end part frame of the baseboard for a scaffold board provided with the locking means, and shows the state by which the movable end part frame was unlocked. It is explanatory drawing which shows the effect | action of the movable end part frame of the baseboard for scaffold boards provided with the locking means similarly to (a) of FIG. 9, and shows the state which the movable end part frame was locked.

  Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 3 (a) and 3 (b), the scaffolding plate 1 has cross members 3 and 3 of opposing building frames 2 and 2, respectively. The scaffolding skirting board 4 according to the present invention is attached to the standing posture on the side edge of the scaffolding plate 1. At both ends of the scaffold plate 1, hooks F project from the left and right ends, respectively. The hook F of the scaffold plate 1 is composed of a hook body fa and a drop lock fb (see (b) and (c) of FIG. 4).

  As shown in FIGS. 1 and 2, the scaffolding skirting board 4 includes an inner wall 5a, an upper wall portion 5b, a lower wall portion 5c, and flanges 5d that protrude inward from the upper and lower wall portions 5b and 5c, respectively. Is formed in a substantially C-shaped cross section, and has a baseboard body 5 formed by attaching end face caps 6 and 7 having a U-shaped cross section to both end faces. Frames 8 and 9 are attached.

  As can be seen from FIGS. 2 and 3, each end frame 8, 9 is composed of a U-shaped frame formed by inner and outer side plates a, a and a connecting plate b connecting both side plates a, a. The connecting plate b is attached so as to face the end face side of the skirting board body 5, and the hooks of the scaffolding plates locked to the cross members 3 of the scaffolding frame 2 are attached to the lower ends of the side plates a, a, respectively. Locking pieces 10, 10, 11, 11 each having a substantially semicircular locking recess 10 a, 10 a, 11 a, 11 a that are locked on both sides of F are provided.

  The end frame 8 on one end side is pivotally attached to the skirting board main body 5 by a pivot 12 as shown in the left end of each of FIGS. 2 (a) and 2 (b) and (a) of FIG. The lower end side locking recesses 10a, 10a are movable end frames that are tiltable in the retracting direction to shorten the distance from the locking recesses 11a, 11a of the end frame 9 on the other end side. 13 is held in a vertical posture orthogonal to the longitudinal direction of the skirting board body 5.

  The structure of the movable end frame 8 will be further described. As can be seen from FIGS. 2 (a) and 2 (b), the end frame 8 made of a U-shaped frame has a narrower U-shaped frame. The mounting frame 14 is fixed back to back with the rivet 31, and this U-shaped frame-shaped mounting frame 14 is fitted to the opposite end of the skirting board body 5 about half of the U-frame depth direction, The upper end portion of the mounting frame 14 is pivotally attached to the upper end portion of the skirting board main body 5 by the pivot 12. Then, the bolt 15 is passed through the connecting plate b of the movable end frame 8 and the central part in the vertical direction of the mounting frame 14 to the central part in the vertical direction of the end face cap 6 attached to the skirting board body 5, A retaining nut 16 is attached, a compression coil spring 13 is interposed between the mounting frame 14 and the end face cap 6 on the bolt 15, and the U-shaped frame-shaped mounting frame 14 penetrates in the inner and outer directions. A long hole 17 of a certain length is provided along a curve centered on the pivot 12 and a bolt 18 fixed on the baseboard body 5 side is inserted into the long hole 17 to tilt the end frame 8. In addition to restricting the range, the end frame 8 can always be held in a vertical posture orthogonal to the longitudinal direction of the baseboard body 5 by the urging force of the compression coil spring 13, thereby retracting the end frame 8 from the vertical posture. A certain angle range in the direction It can be dynamic, so that can not be tilted in the forward direction.

  The end frame 9 on the other end side is a fixed end fixed to the right end of FIGS. 2A and 2B and the end of the baseboard body 5 as shown in FIG. 3B. It is a frame. The fixed end frame 9 is only fixed to the end of the baseboard body 5 in a vertical posture orthogonal to the longitudinal direction of the baseboard body 5, and the structure of the end frame 9 itself is the same as that of the movable end frame 8. Accordingly, the drawings are denoted by the same reference numerals and description thereof is omitted. The fixed end frame 9 is fixed to the end cap 7 having a U-shaped cross section mounted on the end surface of the skirting board body 5 with a rivet 31 in a back-to-back state.

  Further, as shown in FIG. 3 (b), the movable end frame 8 on one end side of the skirting board body 5 and the fixed end frame 9 on the other end side are in front of each other with respect to the end of the skirting board body 5. It is attached by shifting. This is because, as shown in FIGS. 4B and 4C, when the skirting boards 4 are continuously attached side by side, the locking pieces of the movable end frame 8 that are locked to the same portion of the cross member 3 are used. This is to avoid the interference between the locking piece 11 of the fixed end portion frame 9 and the fixed end portion frame 9.

  Further, as shown in FIGS. 3A and 3B and FIG. 2A, the lower side of the pair of inner and outer side plates a and a forming the movable end portion frame 8 is placed on the lower side when the tilting operation is performed. For example, finger insertion holes 19 and 19 for inserting two fingers, for example, an index finger and a middle finger, are provided at the top and bottom. As shown in FIG. 2 (a), two upper and lower positioning holes 20, 20 are provided on one side of the inner and outer plates a, a, for example, the outer side plate a of the movable end frame 8, on the upper side. The inner side plate a, which is the side, is provided with two upper and lower positioning projections 21 and 21 that fit into the two positioning holes 20 and 20 on the upper side. Are provided with two upper and lower positioning holes 20 and 20 and two upper and lower positioning projections 21 and 21 at positions opposite to the inside and outside of the movable end frame 8.

  In this embodiment, as shown in FIGS. 2 to 5, finger insertion holes 19 are also provided in the left and right symmetrical positions with respect to the movable edge frame 8 in the fixed end frame 9. This is because the movable end frame 8 and the fixed end frame 9 have exactly the same shape, which can reduce the manufacturing cost.

  In order to attach the scaffolding skirting board 4 constructed as described above to the scaffolding board 1, as shown in FIGS. 3 (a) and 3 (b) and FIG. 4 (a), the skirting board body 5 is lifted. Lower from the state on the side edge of the scaffold plate 1, and first insert the pair of locking pieces 11, 11 of the fixed end frame 9 between one cross member 3 and the tip of the scaffold plate 1, The locking recesses 11a and 11a are locked so as to sandwich the hook F of the scaffold plate 1 already locked to the cross member 3, and are brought into a state as shown in FIG. The movable end frame 8 is tilted in the backward direction about the pivot 12 against the spring 13, and the locking recess 10a on the movable end frame 8 side and the fixed end as shown in FIG. As shown in FIG. 3 (a), the locking recesses 10a and 10a of the pair of locking pieces 10 and 10 of the movable end frame 8 from a state where the distance from the locking recess 11a on the frame 9 side is shortened. Already in the crosspiece 3 By locking so that the hook F of the stopped scaffolding plate 1 is sandwiched, the movable end frame 8 returns to the vertical posture by the urging force of the spring 13, and the locking recesses 10 a and 10 a are attached to the cross member 3. In addition to the elastic contact locking, the locking recesses 11a, 11a on the fixed end frame 9 side are also elastically locked to the cross member 3, so that the skirting board main body 5 is placed in a standing posture on the side edge of the scaffold plate 1. Can be fixed.

  In short, at the time of attachment, the pair of locking recesses 11a and 11a of the fixed end frame 9 are first locked to the cross member 3 of one scaffold building frame 2, and then the movable end frame 8 on the opposite side is spring-loaded. 13 from the state in which the distance between the locking recess 10a on the movable end frame 8 side and the locking recess 11a on the fixed end frame 9 side is shortened, and the movable end frame 8 Since the pair of locking recesses 10a, 10a may be locked to the cross member 3 of the other scaffold building frame 2, the pair of locking recesses 10a, 10a can be easily and easily attached, and the pair of locking recesses of the end frames 8, 9 Since the bases 10a, 10a, 11a, and 11a are locked to the cross member 3, the baseboard body 5 can be stably fixed on the side edge portion of the scaffold board 1. Further, when the scaffolding skirting board 4 is removed from the scaffolding plate 1, the movable end frame 8 is tilted in the backward direction in the reverse order of the attachment, and the locking recess 10a is removed from the cross member 3. After that, the fixed end frame 9 may be removed from the cross member 3, so that it can be easily removed.

  Further, when the baseboard body 4 is attached, the locking recess 11 a of the fixed end frame 9 is first locked to the cross member 3, and then the locking recess 10 a on the movable end frame 8 side is engaged with the cross member 3. When stopped, the locking recess 11a on the fixed end frame 9 side is also elastically locked to the cross member 3 by the biasing force of the spring 13, so that the locking recess 10a on the movable end frame 8 side and the fixed end are fixed. The locking recesses 11a on the side of the part frame 9 are stretched in opposite directions, and the skirting board main body 5 can be firmly fixed on the side edge of the scaffolding board 1 in an upright posture.

  In this embodiment, the pair of locking recesses 10 a, 10 a, 11 a, 11 a of the end frames 8, 9 are locked on both sides with the hook F of the scaffold plate 1 locked to the cross member 3. However, the hook F of the scaffolding plate 1 may be engaged with the cross member 3 on one side of the hook F without pinching the hook F. However, if the structure is such that the hook F of the scaffolding plate 1 is sandwiched and held on both sides as in the embodiment, the structure of the lower ends of the end frames 8 and 9 can be made compact, and a pair of locking recesses 10a, 10a, 11a, 11a can be stably locked with respect to the cross member 3, and when the baseboard 4 is continuously attached side by side as shown in FIGS. 4 (b) and 4 (c), the scaffold plate 1 The hook F and the locking recesses 10a, 10a, 11a, 11a do not interfere with each other, and can be locked accurately.

  Each of the end frames 8 and 9 is composed of a U-shaped frame formed of both side plates a and a and a connecting plate b, and the connecting plate b is attached so as to face the end surface of the skirting board body 5. Since the pair of locking pieces 10, 10, 11, 11 having substantially semicircular locking recesses 10 a, 10 a, 11 a, 11 a are formed at the lower ends of the plates a, a respectively, The manufacture of the frames 8 and 9 is easy, and the attachment to the end frames 8 and 9 is simple and easy.

  FIG. 5 shows a state in which a plurality of skirting boards 4 are stacked in the horizontal direction when the scaffold board skirting boards 4 are transported by a truck or stored in a factory or the like. In this case, as shown in FIG. 2 (a), one side of the inner and outer plates a, a of the movable end frame 8 forming the end frames 8, 9, for example, the upper side of the outer side plate a Two upper and lower positioning holes 20, 20 are provided, and the inner side plate a, which is the other side, is provided with two upper and lower positioning projections 21, 21 that fit into the two positioning holes 20, 20 on the upper side. Two upper and lower positioning holes 20 and 20 and two upper and lower positioning protrusions 21 and 21 are provided on the upper side of the inner and outer plates a and a of the end frame 9 at positions opposite to the inner and outer sides of the movable end frame 8, respectively. Therefore, as shown in FIG. 5, the baseboard 4 is formed by fitting the positioning projections 21 of the lower end side end frames 8, 9 adjacent to each other into the positioning holes 20 of the upper end side end frames 8, 9. It can be stacked in an aligned state and can prevent collapse of cargo.

  6 to 9 show an embodiment of the scaffolding skirting board 4 provided with the locking means 22 that locks the movable end frame 8 in a vertical posture orthogonal to the longitudinal direction of the skirting board main body 5. 6 is a perspective view of the movable end frame 8 portion of the scaffolding skirting board 4 provided with the locking means 22 as viewed from the inside of the baseboard body 5. FIG. 7 shows the same movable end frame 8 portion as FIG. FIG. 8A is an enlarged front view of the movable end portion frame 8 of the scaffolding skirting board 4 provided with the locking means 22 as viewed from the inside of the skirting board body 5. FIG. 4B is a sectional view taken along line XX of FIG. 5A, and FIG. 5C is a sectional view taken along line YY of FIG.

  The movable end frame 8 shown here has the same structure as that of the embodiment described with reference to FIGS. 1 to 5, and is composed of a U-shaped frame formed by inner and outer side plates a, a and a connecting plate b. Locking pieces 10 and 10 having substantially semicircular locking recesses 10a and 10a, respectively, that are locked to the cross member 3 of the scaffold building frame 2 are provided at the lower ends of a and a. Then, as shown in FIGS. 8A to 8C, a mounting frame 14 made of a U-shaped frame having a narrower width than this is fixed to the movable end frame 8 with a rivet 31 in a back-to-back state. In the state where the U-shaped frame-shaped mounting frame 14 is fitted to the opposite end of the baseboard body 5 by about half of the U-frame depth direction, the upper end portion of the mounting frame 14 is connected to the baseboard body 5 by the pivot 12. It is pivotally attached to the upper end of.

  As shown in FIG. 8 (a), a leaf spring 23 is inserted into the U-shaped frame 14 and the upper end 23a of the leaf spring 23 passes through the upper side of the pivot 12 and the baseboard body. 5, the lower end 23 b is elastically contacted with the lower end of the inner surface of the connecting plate b of the mounting frame 14, and the lower end of the U-shaped frame-shaped mounting frame 14 is 6 and 7, as shown in FIG. 6 and FIG. 7, a long hole 17 having a predetermined length penetrating inward and outward is provided along a curve centering on the pivot axis 12, and the long hole 17 has a baseboard body 5 side. Bolts 18 are fixedly inserted into the movable end frame 8 so as to restrict the tilting range of the movable end frame 8, and the end frame 8 is always perpendicular to the longitudinal direction of the baseboard body 5 by the urging force of the leaf spring 23. So that the end frame 8 can be tilted within a certain angle range in the backward direction from the vertical posture. However, it cannot be tilted in the forward direction.

  The locking means 22 for locking the movable end frame 8 configured as described above in a vertical posture orthogonal to the longitudinal direction of the skirting board body 5 includes a hook-shaped lock pin 24 and a truncated cone-shaped coil spring 25. The lock pin 24 includes a support shaft portion 26 that is pivotally supported through a shaft hole 32 provided in the inner wall 5 a of the baseboard body 5, and a tip end portion of the support shaft portion 26. The operation shaft portion 27 projecting at right angles along the outer surface of the inner wall 5a, and the mounting on the movable end frame 8 side in a vertical posture projecting in parallel with the support shaft portion 26 from the distal end portion of the operation shaft portion 27. The locking shaft portion 29 is formed by a locking shaft portion 29 that is detachable with respect to the lock hole 28 provided in the overlapping portion of the frame 14 and the inner side wall 5a of the skirting board body 5, and the support shaft portion 26 is formed as described above. It is pivotally supported by the shaft hole 32 of the inner wall 5a and is mounted on the back surface of the inner wall 5a of the baseboard body 5. It is pivotally supported on the shaft hole 33 of the base portion 30a of the eclipse trapezoidal bracket 30.

  The frustoconical coil spring 25 that constitutes the locking means 22 together with the lock pin 24 is a trapezoidal bracket attached to the back surface of the inner wall 5a of the baseboard body 5 as shown in FIGS. 30 is interposed between a pedestal 30a and a mounting nut 31 screwed to the tip of the support shaft 26 of the lock pin 24 inserted and supported in the shaft hole 33 of the pedestal 30a. A biasing force is applied to the support shaft portion 26 so that the shaft portion 29 is always engaged with the lock hole 28.

  6 to 8 show a state in which the movable end frame 8 is in a vertical posture with respect to the skirting board body 5 by locking the locking recess 10 a of the locking piece 10 to the cross member 3 of the scaffolding frame 2. A state in which the lock means 22 is locked is shown, and a locking shaft portion 29 of the lock pin 24 is plunged and locked into the lock hole 28. From this locked state, the operating shaft portion 27 of the lock pin 24 is pulled to the near side as shown by the arrow in FIG. 6 against the urging force of the coil spring 25, as shown by the phantom line in FIG. 8B. After the locking shaft portion 29 is extracted from the lock hole 28, it is rotated around the support shaft portion 26 as shown by the phantom line in FIG. 5 is locked to the outer surface of the inner wall 5a, so that the movable end frame 8 is unlocked, and the distance from the locking recess 11a on the fixed end frame 9 side about the pivot 12 at the upper end is centered. It can be tilted in the retracting direction to shorten.

  The operation of the movable end frame 8 provided with the locking means 22 as shown in FIGS. 6 to 8 will be described below with reference to FIGS. 9 and 10. FIG. At the time of attachment, the lock means 22 is unlocked by removing the locking shaft portion 29 of the lock pin 24 from the lock hole 28 and applying it to the outer surface of the inner side wall 5a of the baseboard body 5 from above the cross member 3. The state where the movable end frame 8 side of the scaffolding skirting board 4 is lowered and the locking recess 10a of the locking piece 10 of the movable end frame 8 is about to be locked to the cross member 3 is shown. In this unlocked state, the movable end frame 8 is held in a vertical posture, and can tilt from the vertical posture in a certain angle range in the backward direction, but cannot tilt in the forward direction. The fixed end frame 9 of the scaffolding skirting board 4 has the same structure as that described with reference to FIGS.

  As shown in FIG. 9 (a), the movable end frame of the base plate 4 is in a state where the lower end portion of the locking piece 10 is in contact with the circumferential surface of the cross member 3 slightly in front of the center portion. When the 8 side is pushed down, the lower end portion of the locking piece 10 slides down along the peripheral surface of the cross member 3, and a force in the direction of retreating from the cross member 3 acts on the locking piece 10 to move it. The end frame 8 tilts against the urging force of the leaf spring 23 in the backward direction around the pivot 12 as shown in FIG. 9B, and finally the locking recess 10a of the locking piece 10 In a state as shown in FIG. 10, the baseboard body 5 can be fixed in a standing posture on the side edge of the scaffolding plate 1 by elastically locking to the cross member 3.

  FIG. 10 shows the state in which the locking recess 10a of the locking piece 10 is elastically locked to the cross member 3 and the movable end frame 8 is held in the vertical position, as shown in FIG. The locking means 22 is locked by urging and engaging the locking shaft portion 29 of the lock pin 24 that is applied to the outer surface of the inner wall 5a of the skirting board body 5 away from the mounting frame 14 into the lock hole 28. Indicates the state. In this locked state, the movable end frame 8 is fixed so as not to tilt with respect to the skirting board body 5, so that the locking recess 10 a of the locking piece 10 is locked to the cross member 3 as shown in FIG. The locking recess 10a does not come off.

  The movable end frame 8 in which the locking recess 10a of the locking piece 10 is stopped by the cross member 3 and is in a vertical posture is held in a vertical posture by the leaf spring 23 without locking the locking means 22. The locked state with respect to the cross member 3 is maintained. When a large upward force is applied to the movable end frame 8 side in such a state, the movable end frame 8 acts on the urging force of the leaf spring 23. Since the locking recess 10a may be detached from the cross member 3 by tilting in the reverse direction, such an unexpected situation can be caused by locking the movable end frame 8 by the locking means 22. Can be avoided.

  Although only the movable end frame 8 is illustrated in the scaffold base 4 of the embodiment shown in FIGS. 6 to 10, the fixed end frame 9 is used for the scaffold described in FIGS. 2 to 5. Same as skirting board 4. Moreover, in the scaffolding skirting board 4 of embodiment shown to FIGS. 6-10, about the structure of movable end part frame 8 itself, it is the same as the movable end part frame 8 of FIGS. One side plate a of the inner and outer plates a, 8 is provided with two upper and lower positioning holes 20, 20 on the upper side, and the other side plate a is fitted to the two positioning holes 20, 20 on the upper side. Two upper and lower positioning projections 21 and 21 are provided, and two upper and lower positioning holes 20 and 20 are provided on the upper side of the inner and outer plates a and a of the fixed end frame 9 at positions opposite to the inner and outer sides of the movable end frame 8, respectively. And two positioning projections 21 and 21 are provided.

DESCRIPTION OF SYMBOLS 1 Scaffolding board F Scaffolding board hook 2 Scaffolding frame 3 Cross member 4 Scaffolding board skirting board 5 Baseboard body 8 Movable end part frame 9 Fixed end part frame 10, 11 Locking piece 10a, 10a Locking recessed part 11a, 11a Locking recess 13 Coil spring 19 Finger insertion hole 20 Positioning hole 21 Positioning protrusion 22 Locking means 23 Plate spring 25 Coil spring

Claims (7)

  A skirting board that is attached in a standing position on a side edge of a scaffolding board spanned between the transverse members of the opposing scaffolding frame, on both ends of the skirting board main body, End frames each having a pair of locking recesses to be locked on the opposite surface side are disposed, and the end frame on one end side is pivotally attached to the baseboard body, and the locking recesses are the other. A movable end frame that can be tilted in the retracting direction to shorten the distance from the locking recess of the end frame on the end side, and is always held in a vertical posture perpendicular to the longitudinal direction of the baseboard body via a spring and the other end The end frame on the side is a fixed end frame fixed to the end of the baseboard body, and the movable end frame is spring-loaded in a state where the locking recess of the fixed end frame is locked to the cross member. The scaffolding plate is configured such that the locking recess is locked to the cross member by being tilted in the backward direction against the movement, and the baseboard body is fixed in an upright position on the side edge of the scaffolding plate. Skirting.   The scaffolding skirting board according to claim 1, wherein locking means for locking the movable end frame in a vertical posture orthogonal to the longitudinal direction of the baseboard body is interposed between the movable end frame and the baseboard body.   The lock means includes a support shaft portion that is pivotally supported through the baseboard body, an operation shaft portion that protrudes perpendicularly from the distal end portion of the support shaft portion along the side surface of the baseboard body, and an operation shaft portion. A locking shaft that protrudes in parallel with the support shaft from the tip of the shaft and is detachable with respect to a lock hole penetrating through the overlapping portion of the movable end frame side and the baseboard body in a vertical posture. The scaffolding skirting board according to claim 2, comprising a lock pin and a spring that urges the support shaft portion of the lock pin so that the locking shaft portion is always engaged with the lock hole.   The pair of locking recesses in each end frame is locked to both sides of the scaffolding plate hooks locked to the cross member of the scaffolding frame. Scaffolding board for crab.   The baseboard for scaffolding boards according to any one of claims 1 to 4, wherein the movable end frame is provided with a finger insertion hole for inserting a finger for tilting operation.   Each end frame consists of a U-shaped frame formed by inner and outer side plates and a connecting plate connecting both side plates, and the connecting plate is attached so as to face the end face of the baseboard body, and the lower end of each side plate The baseboard for a scaffolding board according to any one of claims 1 to 5, wherein a pair of locking pieces each having a locking recess is formed in each part.   Each end frame consists of a U-shaped frame formed by both inner and outer side plates and a connecting plate that connects both side plates, and a plurality of positioning holes are provided in either one of the inner and outer plates forming each end frame. The side plate is provided with a plurality of positioning projections that fit into the positioning holes of the one side plate when stacked in a plurality of stages so that the baseboards face sideways and the movable end frame and the fixed end frame overlap each other. The baseboard for scaffold boards according to any one of claims 1 to 6.

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