JP2011006890A - Base and elevating mobile scaffold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a base which enables an existing elevating mobile scaffold to be utilized to adapt to work at various heights, and an elevating mobile scaffold using the base.SOLUTION: The base includes a rectangular base frame which has a ground contact surface equipped with wheels and which can be moved and fixed to a predetermined place. Characteristically, the elevating scaffold, which comprises a rectangular base body frame having supports erected at four corners, a plurality of tiers of ascendable/descendable horizontal frames and a working floor, can be mounted on the base. The elevating mobile scaffold uses the base.

Description

  The present invention relates to a base for mounting a lifting scaffold used for interior and exterior construction and the like, and a lifting movable scaffold using the base.

  The vertical moving scaffold can be expanded and contracted in the vertical direction, so it can be stored and transported at a low height, moved horizontally to a predetermined location, fixed at that location, and then lifted to a predetermined height. By extending the type moving scaffold and fixing its height, work such as interior and exterior construction can be performed at a predetermined height at a predetermined location.

  Such horizontal movement and fixing of the liftable moving scaffold is often performed by providing a wheel with a brake lock on the ground contact surface of the liftable moving scaffold and further fixing it with an outrigger. The vertical expansion and contraction is performed by directly moving the work table up and down or by installing the work table on a foldable arm and extending and fixing the arm.

  After stretched in this elevating movement scaffold predetermined location, the operator is able to work at high places. Therefore, a handrail is required for the workbench in order to prevent the worker from falling from a high place. The handrail of the workbench may be attached in advance to the liftable moving scaffold before moving to a predetermined location, or may be attached after moving to a predetermined location. In this case, the handrail is attached in a state in which the lifting and lowering moving scaffold is contracted in the vertical direction, that is, after the handrail is safely attached while the work table is in a low position, the lifting and lowering moving scaffold is extended in the vertical direction. Therefore, the worker can work safely at a high place.

  In addition, since such a lifting and lowering type moving scaffold can be expanded and contracted in the vertical direction, when storing the lifting and lowering type moving scaffold, the storage space in the height direction can be saved by reducing its height. Can do. It has been proposed not only to lower the height by allowing the lifting / lowering moving scaffold to move up and down, but also to save the storage space in the width direction by allowing the work floor of the lifting / lowering moving scaffold to be foldable.

  In Patent Document 1, a plurality of horizontal frames (frame bodies) are sequentially stacked via an X-shaped slider crank on a rectangular base frame (frame body) having wheels on a ground contact surface, and a lifting trap is provided. An elevating mobile scaffold with a (ladder) is disclosed. The X-shaped slider crank can be folded and extended, and by manually extending and retracting the X-shaped slider crank, the work floor can be raised and lowered, and its height can be fixed in stages. Is possible. Here, the raising / lowering trap also serves as a support between the frames after extending the slider crank.

  1 and 2 show an example of a liftable moving scaffold that has been put into practical use based on the technique disclosed in Patent Document 1. FIG. (a) is a front view, (b) is a right side view. FIG. 1 shows a state in which all three X-shaped slider cranks 50 are extended in the vertical direction with the lifting and lowering moving scaffold 200 fixed in place, and FIG. 2 shows a state in which the same is also fixed in place. A state when all of the three X-shaped slider cranks 50 are folded in the vertical direction is shown.

  The liftable moving scaffold 200 includes a rectangular base frame 5 that has wheels on a ground contact surface and can be moved and fixed to a predetermined place, and a horizontal frame 40 that can be raised and lowered in a plurality of stages. The uppermost horizontal frame 40 also serves as a work floor frame. The uppermost horizontal frame 40 is provided with a work floor made of a meshed plate, a striped plate or the like and a handrail or the like. A base 60 is formed.

  Pipe-shaped columns 7 are erected at four corners of a rectangular base frame (frame body) 5, and wheels 6 with brake locks are attached to the lower ends thereof. Further, an outrigger 76 having a jack base 75 at the tip is attached to the side surface of each column 7 of the base frame, and is installed so as to be able to rotate in the horizontal direction around each column 7 of the base frame. The lifting / lowering moving scaffold 200 is moved by releasing the brake lock of the wheel 6 and pushing the lifting / lowering moving scaffold 200 in the horizontal direction while lifting the jack base 75. This movement is usually made with the horizontal frame 40 folded in the vertical direction. Then, after moving to a predetermined place, the brake lock of the wheel 6 is applied, and the jack base 75 is grounded to be fixed at the predetermined place.

  On the rectangular base frame 5, three steps of a rectangular horizontal frame 40 that can be raised and lowered are provided at intervals, and two diagonal members are crossed and axially attached between each frame. X-shaped slider cranks 50 are vertically arranged in two rows. Here, the base frame 5 also serves as the lowermost horizontal frame, but a lowermost horizontal frame 40 may be provided separately from the base frame 5. When the lowermost horizontal frame 40 is provided separately from the base frame 5, the base frame 5 and the horizontal frame can be separated. Therefore, the upper member including the horizontal frame can be removed from the base frame when moving the liftable moving scaffold 200, so that the work becomes easier and the space is used effectively for storage. Can do.

  A work table 60 is installed on the uppermost horizontal frame 40. Handrail pillars 62 are installed at the four corners of the uppermost horizontal frame 40, handrail bars 63 are attached between adjacent handrail pillars 62, and baseboards 64 are attached on the four sides. Thus, the assembly of the work table 60 is completed. In addition, the assembly of the work table 60 may be performed before the movement, or may be performed after the movement. Here, the uppermost horizontal frame 40 also serves as a work floor frame, but a work floor frame may be provided separately from the uppermost horizontal frame 40. When a work floor frame is provided in addition to the uppermost horizontal frame 40, the entire work table 60 including the work floor can be removed when the elevating movable scaffold 200 is stored and transported.

  As described above, when the lowermost horizontal frame 40 is provided separately from the base frame 5, the upper member including the horizontal frame (including the work table 60) can be removed from the base frame. In particular, even if a work floor frame is not provided separately from the uppermost horizontal frame 40, the work of moving and transporting the liftable moving scaffold 200 is facilitated, and the space is effectively used for storage. Can be used.

  The elevating moving scaffold 200 is raised and lowered by sliding two diagonal members of an X-shaped slider crank 50 provided between the frames in the horizontal direction. That is, when the X-shaped slider crank 50 extends upward, the upper horizontal frame 40 rises. Conversely, when the X-shaped slider crank 50 contracts downward, the upper horizontal frame 40 rises. 40 goes down.

  And when raising the raising / lowering moving scaffold 200, after extending the X-shaped slider crank 50 upwards, it attached to each side surface between each frame so that it could stand upright, respectively, and the elongate material 70 and a horizontal material The height of the upper horizontal frame 40 is fixed by supporting the upper horizontal frame 40 with the support 69 composed of 71. This operation, until the top of the horizontal frame 40 is raised to a predetermined height repeated at the slider crank 50 of each stage. On the other hand, when lowering the lifting type moving scaffold 200, the support of the upper horizontal frame 40 is removed by first pushing the column 69 made of the long member 70 and the cross member 71 inward, and then the X-shaped of the step. The slider crank 50 is contracted downward to lower the height of the upper horizontal frame 40, and the height is fixed by the fastener 52. This operation, until the top of the horizontal frame 40 is lowered to a predetermined height repeated at the slider crank 50 of each stage.

  Taking the lowermost X-shaped slider crank 50 as an example, the structure of the X-shaped slider crank 50 will be described in detail. The crossing portion of the two diagonal members is pivotally attached by a pin 51 and the two diagonal members. The left end of each is pivotally attached to the long sides of the upper and lower frames. Therefore, the right ends of the two diagonal members can be moved and fixed in the horizontal direction along the long sides of the upper and lower frames, respectively, and after the slider crank 50 is extended upward, there is a gap between the upper and lower frames. The upper horizontal frame 40 can be fixed at a predetermined height by supporting the upper horizontal frame 40 by the columns 69 attached to the both side surfaces so as to be erected. Further, after the slider crank 50 is contracted in the downward direction, the upper horizontal frame 40 can be fixed at the height by rotating the fastener 52 upward and fixing it to the inside.

  In this example, since the uppermost horizontal frame 40 of the elevating type moving scaffold 200 also serves as a work floor frame, the uppermost horizontal frame 40 is extended after the uppermost X-shaped slider crank 50 is extended upward. The long member 70 of the support column 69 for supporting the frame 40 is supported by the uppermost horizontal frame 40 via a lateral member 41 provided at the lower part of the uppermost horizontal frame 40, whereby the uppermost horizontal frame 40 is supported. Is fixed at a predetermined height.

  On the other hand, when a work floor frame is provided separately from the uppermost horizontal frame 40, the uppermost horizontal frame 40 is supported after the uppermost X-shaped slider crank 50 is extended upward. Since the long member 70 of the support column 69 for supporting the uppermost horizontal frame 40 is directly supported by the uppermost horizontal frame 40, the uppermost horizontal frame 40 can be fixed at a predetermined height. There is no need to provide the transverse member 41.

  In this manner, the worker moves the lifting / lowering moving scaffold 200 to a predetermined location, fixes the lifting / lowering moving scaffold 200 at the predetermined position, and then performs the extension work of the X-shaped slider crank 50 at each stage. As a result, the uppermost horizontal frame 40 is raised and fixed to a predetermined height, and then the column 69 is climbed to the work table 60 for work such as interior and exterior work.

  In the above description, the liftable moving scaffold 200 having the three-stage horizontal frame 40 has been described. However, as shown in FIG. 3, the liftable moving scaffold 201 having the four-step liftable horizontal frame 40 has also been put into practical use. Yes. Note that the liftable moving scaffold 201 shown in FIG. 3 has four horizontal frames 40, the base frame 5 is larger than the horizontal frame 40, and the lowermost support column 69 is inclined. Except for this, it has the same configuration and function as the lifting type mobile scaffold 200 shown in FIGS. 1 and 2.

  1 and 2, the maximum height from the ground to the work floor is about 2.5 m when all of the three X-shaped slider cranks 50 are vertically extended, When all three X-shaped slider cranks 50 are folded in the vertical direction, the minimum height from the ground to the work floor is about 0.9 m. Further, in the lifting type moving scaffold 201 shown in FIG. 3, when all four X-shaped slider cranks 50 are extended in the vertical direction, the maximum height from the ground to the work floor is about 3.6 m, and When all of the four X-shaped slider cranks 50 are folded vertically, the minimum height from the ground to the work floor is about 1.4 m. Therefore, by appropriately combining the extension and folding of the X-shaped slider crank 50, the height of the work floor of the liftable moving scaffold can be fixed to a predetermined height suitable for each work.

Japanese Utility Model Publication No. 2-147545

  As described above, since the maximum height of the work floor of the liftable mobile scaffolding varies depending on the product, construction companies or construction machine rental companies (hereinafter abbreviated as construction companies, etc.) to accommodate the site, the maximum height of the working floor owns a different elevating mobile scaffold.

  However, there are cases where construction sites require work at a height that cannot be accommodated by existing lift-type mobile scaffolds owned by construction companies. In this case, it is necessary for a construction company or the like to purchase a new lifting / moving scaffold that can accommodate the height, that is, a lifting / lowering scaffold having a higher maximum work floor height. Accordingly, there is a problem in that a cost for purchasing the new lifting / moving scaffold is required, and the management cost increases due to the increase in the number of lifting / moving scaffolds. In addition, there is a problem that the operating rate per vehicle is lowered due to an increase in the number of lifting and lowering moving scaffolds.

  It is an object of the present invention to provide a base that makes it possible to cope with work at various heights using an existing lifting and lowering moving scaffold, and a lifting and lowering moving scaffold using the base. .

  The inventors of the present invention have made various studies in order to make the existing lifting and moving movable scaffolding correspond to work at various heights. As a result, the following findings (a) to (i) were obtained.

  (A) As described above, the liftable moving scaffold is composed of a base frame and a plurality of steps of a vertically movable horizontal frame, and a work floor is stretched on the uppermost horizontal frame. The height of the work floor can be adjusted by raising and lowering the horizontal frame, but the maximum height is determined for each product. Therefore, in order to make the existing lift-type mobile scaffold compatible with work at various heights, it is only necessary to make the maximum height of the work floor higher.

  (B) In order to make the maximum height of the work floor higher, a base with wheels on the grounding surface is prepared separately, and the wheel is removed from the existing lifting mobile scaffold (the lifting scaffold) ). As a result, the maximum height of the liftable moving scaffold can be increased by the height of the base, so that it is possible to work at a height that cannot be handled by existing liftable moving scaffolds. In this case, since a construction company etc. should just purchase only a base instead of purchasing a raising / lowering type moving scaffold newly, it can suppress purchase cost. In addition, since the number of liftable mobile scaffolds owned by a construction company or the like does not increase, it is possible to prevent an increase in management costs and to improve the operating rate per vehicle. In addition, since a base can be equipped with a wheel, it can move to arbitrary positions in the state which mounts the raising / lowering scaffold of the state which removed the wheel from the raising / lowering type moving scaffold.

  In the above description, the case where the existing lifting platform is mounted on the base has been described. However, a newly created lifting platform may be mounted on the base, or separately prepared for mounting the base. A dedicated lifting scaffold may be mounted on the base.

  (C) It is preferable to form four ridges on the base so as to correspond to the lower ends of the respective pillars at the four corners of the base frame of the liftable scaffold. And when mounting a raising / lowering scaffold on a base, a wheel should just be removed from each support | pillar of a base frame, and each tenon of a base may be inserted in each support | pillar, respectively. In this case, since each of the tenons is inserted into each column, the lifting and lowering scaffold can be mounted on the base in a stable state.

  (D) Four clamps may be provided on the base so as to be adjacent to the above-mentioned four ridges. In this case, the lower end portion of each support column of the base frame can be fixed by the four clamps in a state where the liftable scaffold is mounted on the base. Thereby, the elevating scaffold can be securely fixed on the base, and the elevating scaffold can be sufficiently stabilized. Further, the lower portion of each column may be fixed to each tenon using bolts, nuts, fixing pins, or the like. Also in this case, the elevating scaffold can be reliably fixed on the base.

  (E) The length of two horns located on one diagonal among the four horns may be longer than the length of two horns located on the other diagonal. In this case, since the two ridges having a long length can be used as positioning horns, it is easy to mount the lifting scaffold.

  (F) It is preferable to provide landings at both ends of the base. In this case, the worker can once climb the landing and perform the work of raising and lowering the elevating scaffold easily and safely there.

  (G) It is preferable that an outrigger is provided on the base. In this case, it is possible to securely fix the base by outriggers, improves the safety and operability of the operator. Moreover, it is preferable to provide a slip stopper on the surface of the outrigger. In this case, when climbing the landing using the outrigger as a trap, it is possible to prevent the operator from stepping on the outrigger. Thereby, the worker can climb the landing easily and safely. If the outrigger is not used as a trap, a dedicated trap may be provided separately. In this case, the ramp may be provided on the side surface of the base may be provided on the side surface portions of the landing.

  (H) It is preferable to provide a cane between the base frame of the base and the outrigger. In this case, the outrigger can be easily and accurately fixed at a predetermined position. In addition, the strength of the outriggers against the horizontal force can be improved by the cane. Thereby, the stability of the elevating scaffold on the base can be sufficiently improved.

  (I) It is preferable to provide a tension member for connecting the outrigger and the lifting scaffold to both ends of the base and the lifting scaffold on the front side and the rear side. In this case, since a compressive force in the vertical direction is applied to the liftable scaffold by the tensile material, play of each component of the liftable scaffold is reduced, and swinging of the liftable scaffold can be reduced. Further, since the lifting scaffold is pulled in opposite directions by the front tensile material and the back tensile material, the stability in the front-rear direction of the lifting scaffold is improved. The tensile member is preferably lower end attached to be inclined so as to be separated from the elevating scaffold. In this case, since the tension | pulling material pulls the raising / lowering scaffold to the front side and the back side becomes strong, the stability of the raising / lowering scaffold further improves.

  Based on these findings, the base that makes it possible to cope with work at various heights using the existing lift-type moving scaffold according to the present invention, and the lift-type mobile scaffold using this base. The present invention has been completed, and the gist of the present invention is the following (1) to (11) base and (12) lifting movable scaffold.

  (1) A base comprising a rectangular base frame having wheels on the grounding surface and movable and fixed to a predetermined place, and a rectangular base frame having pillars erected at four corners and a plurality of steps that can be raised and lowered horizontally A base that can be mounted on this base with a lifting platform composed of a frame and a work floor.

  (2) The base frame according to the above (1), wherein the base frame includes four ridges formed so as to correspond to the pillars at the four corners of the base frame.

  (3) The base frame according to (2), wherein the base frame includes four clamps respectively provided adjacent to the four horns.

  (4) The group according to (2) or (3) above, wherein the length of two of the four tenons located on one diagonal is longer than the length of the other two tenons Stand.

  (5) The base according to any one of (1) to (4), wherein outriggers are respectively provided at four corners of the base frame.

  (6) The base according to (5) above, wherein a slip stopper is provided on the surface of at least one outrigger.

  (7) The base according to (5) or (6) above, wherein a cane is provided between the outrigger and the base frame.

  (8) A plurality of tensile members capable of connecting any of the horizontal frames and the outriggers after raising the horizontal frame of the lifting / lowering scaffold, wherein the tensile member includes at least the front side of the base frame and the lifting / lowering scaffold; The base according to any one of (5) to (7) above, which can be attached to both ends on the back side.

  (9) The base according to (8), wherein the tension member is attached with an inclination so that the lower end side is separated from the lifting scaffold.

  (10) The base according to any one of (1) to (9) above, wherein landings are provided at both ends of the base frame.

  (11) The base according to (10) above, wherein a trap is provided on a side surface of the landing or the base frame.

  (12) On the base described in any one of (1) to (11) above, from a rectangular base frame in which pillars are erected at four corners, a plurality of steps of a vertically movable horizontal frame, and a work floor An elevating type mobile scaffold characterized by mounting an elevating type scaffolding.

  The base according to the present invention makes it possible to cope with work at various heights using an existing lifting and lowering type moving scaffold. Instead of the existing lifting and lowering moving scaffold, it can also be used with a newly created lifting and lowering scaffold.

It is an example of the raising / lowering type moving scaffold utilized practically based on the technique disclosed by patent document 1, and shows the state extended | stretched to the orthogonal | vertical direction. (a) is a front view, (b) is a right side view. The state which folded the raising / lowering type mobile scaffold of FIG. 1 to the orthogonal | vertical direction is shown. (a) is a front view, (b) is a right side view. It is another example of the raising / lowering type moving scaffold utilized practically based on the technique disclosed by patent document 1, and shows the state extended | stretched to the orthogonal | vertical direction. (a) is a front view, (b) is a right side view. It is a figure which shows an example of the base which concerns on this invention. (a) is a front view, (b) is a right side view. It is a top view which shows an example of the base which concerns on this invention. It is an enlarged view which shows the connection state of a horizontal ground, a support | pillar, and a cane among the bases shown in FIG. (A) is the sectional view on the AA line (side view) of Fig.4 (a), (b) is the BB sectional view (plan view) of Fig.6 (a). It is a figure which shows the state at the time of storage of a base. (a) is a front view, (b) is a right side view. It is a figure for demonstrating the usage method of a base. (a) is a front view, (b) is a right side view. It is a figure for demonstrating the usage method of a base. (a) is a front view, (b) is a right side view. It is a figure for demonstrating the usage method of a base. (a) is a front view, (b) is a right side view. It is a figure for demonstrating the usage method of a base. (a) is a front view, (b) is a right side view. It is a figure for demonstrating the usage method of a base. (a) is a front view, (b) is a right side view. It is an enlarged view (right side view) of the tensile material of FIG.12 (b). It is a front view of a tension material. It is a figure which shows the other example which mounts the raising / lowering scaffold on the base. (a) is a front view, (b) is a right side view. It is a figure which shows an example at the time of providing a dedicated trap on a base. It is a figure which shows the other example at the time of providing a dedicated trap on a base.

  Hereinafter, a base according to the present invention and an elevating mobile scaffold provided with the base will be described with reference to the drawings.

(1) Configuration of base FIG. 4 and FIG. 5 are diagrams showing an example of the base according to the present invention. 4A is a front view, FIG. 4B is a right side view, and FIG. 5 is a plan view.

  As shown in FIGS. 4 and 5, the base 100 according to this example includes a substantially rectangular base frame (frame body) 11. Support columns 12 are erected at the four corners of the base frame 11, and wheels 12a with brake locks (see FIG. 4) are attached to the lower ends thereof. An outrigger 14 provided with a jack base 13 at the tip is attached to the side surface of each column 12 and is installed so as to be able to rotate in the horizontal direction around each column 12.

  As shown in FIG. 4B, the outrigger 14 is attached with a ring-shaped fixing member 15 and a slip stopper 16. A support column 14c is fixed between the upper frame 14a and the lower frame 14b of the outrigger 14. The fixing bracket 15 and the slip stopper 16 will be described later.

  As shown in FIG. 5, a lateral ground 11 a is provided at each end of the base frame 11. The horizontal land 11a is fixed to the upper end of the support column 12 (see FIG. 4). Between the lateral areas 11a and horizontal locations 11a, 2 pieces of transverse locations 11b are fixed parallel to each other. Moreover, the horizontal ground 11c is being fixed between the support | pillars 12 (refer FIG. 4) so that it may become parallel to the horizontal ground 11b below the horizontal ground 11b. As shown in FIGS. 4 and 5, between the lateral areas 11c and posts 14c, Hotsue 17 is provided.

  6 is an enlarged view showing a connection state of the horizontal ground 11c, the column 14c, and the cane 17 in the base 100 shown in FIG. 4, and (a) is a cross-sectional view taken along the line AA in FIG. (Side view), (b) is the BB sectional drawing (plan view) of Fig.6 (a).

  As shown in FIG. 6, a gripping bracket 17a is fixed to one end of the wand 17 and the wand 17 is attached to the support column 14c via the gripping bracket 17a so as to be movable up and down. Further, a hook member 17b having a substantially inverted U shape with an open bottom is fixed to the other end of the cane 17. In this example, the hook 17b can be hooked on the horizontal ground 11c to stop the dropping of the cane 17 and the position of the cane 17 in the vertical direction can be fixed. Moreover, the contact material 18 is being fixed to the predetermined position of the side surface of the horizontal land 11c. By this abutting member 18, the movement of the hook metal 17 b (cane 17) in the axial direction of the lateral ground 11 c is prevented. The effect of the cane 17 will be described later.

  As shown in FIG. 4 and FIG. 5, the tenon 19 and the clamp 20 are provided at both ends (four corners of the base frame 11) of the horizontal ground 11b, respectively. Of the four ridges 19, the length of the two ridges 19 located on one diagonal line is longer than the two horns 19 located on the other diagonal line.

  A landing 21 is provided at each end (short side) of the base frame 11. The landing 21 includes a substantially rectangular frame 21a and a net member 21b fixed on the frame 21a. As shown in FIG. 5, the frame body 21 a is attached to the horizontal ground 11 a via the connecting fitting 22. Specifically, one end side of the connection fitting 22 is fixed to the horizontal ground 11a, and the frame body 21a is rotatably attached to the other end side of the connection fitting 22.

  As shown in FIG. 4, a substantially cylindrical connecting fitting 23 is fixed to the lower surface of the landing 21, and a landing receiving member 24 is attached to the connecting fitting 23 so as to be rotatable. The lower end of the landing receiving member 24, gripping bracket 24a of a semicircular cross section is fixed. By fitting the strut 12 to the gripping bracket 24a, landings bolster 24 is fixed.

  FIG. 7 is a diagram illustrating a state of the base 100 during storage, in which (a) is a front view and (b) is a right side view. In FIG. 7, the network material 21b (see FIGS. 4 and 5) of the landing 21 are not shown.

  As shown in FIG. 7, when the base 100 according to this example is stored in a warehouse or the like, the outrigger 14 and the landing 21 can be folded. Specifically, when the outrigger 14 is folded, first, the jack base 13 is lifted from the state shown in FIG. 4 and the hook 17 is lifted upward to disengage the hooking bracket 17b (see FIG. 6) from the lateral surface 11c. remove. Thereby, the outrigger 14 becomes rotatable. Therefore, as shown in FIG. 7, the outrigger 14 can be folded by rotating the outrigger 14 to the base frame 11 side. On the other hand, when folding the landing 21, first, the landing 21 is slightly lifted upward from the state shown in FIG. 4, and the holding bracket 24 a of the landing receiving member 24 is removed from the column 12. Thereby, the landing material 24 can be rotated and the landing 21 can be rotated downward. Therefore, as shown in FIG. 7, the landing 21 can be folded by rotating the landing receiving material 24 to the lower surface side of the landing 21 and rotating the landing 21 to the base frame 11 side.

  In addition, when folding the outrigger 14, it is preferable to place the cane 17 on the horizontal ground 11c. Thereby, the operation | work at the time of expand | deploying the outrigger 14 from the state of FIG. 7 to the state of FIG. 4 becomes easy. Specifically, when the outrigger 14 is deployed, the cane 17 moves together with the deployment (rotation) operation of the outrigger 14. And when the outrigger 14 rotates to a predetermined position, the hook 17b (see FIG. 6) of the wand 17 is hooked on the horizontal ground 11c (see FIG. 6), and the outrigger 14 can be fixed.

(2) Usage method of base FIGS. 8-12 is a figure for demonstrating the usage method of the base 100, (a) is a front view, (b) is a right view. In the following, a method of using the base 100 will be described by taking as an example a case where the conventional lifting type moving scaffold 201 shown in FIG. 3 is raised. Further, in the following, an example of the liftable moving scaffold 201 stored in a warehouse or the like (a state in which the work table 60 (see FIG. 3) is removed and all the slider cranks 50 are folded vertically)) Will be described.

  When raising the elevating mobile scaffold 201, first, the wheels 6 and the outriggers 76 are removed from the elevating mobile scaffold 201 as shown in FIG. Hereinafter simply referred to as elevating scaffold 201 elevating movement scaffold 201 in a state where the wheel 6 is removed. Next, the elevating scaffold 201 is mounted on the base 100 so that the tenon 19 of the base 100 is inserted into the lower end portion of the column 7 of the elevating scaffold 201. In this state, as shown in FIG. 9, the lower end portion of the support column 7 is fixed to the base 100 by the clamp 20. In addition, in the state shown in FIG. 9, it is preferable to determine the height of the base 100 so that the height from the ground to the uppermost horizontal frame 40 is 2 m or less. In this case, it is not necessary to install a scaffold or the like as defined in the occupational safety and health regulations. Further, when the base 100 and the liftable scaffold 201 are loaded on a truck or the like in the state shown in FIG. 9, the height of the uppermost horizontal frame 40 is limited to the upper end height of the load defined by the Road Traffic Law. Can be lower than the value.

  Next, as shown in FIG. 10, the outrigger 14 and the landing 21 are developed. In this state, the worker once climbs the landing 21 using the upper frame 14a of the outrigger 14 as a trap, and works on the work table 60 (handrail pillar 62, handrail bar 63 and baseboard) on the uppermost horizontal frame 40. 64).

  Next, as shown in FIG. 11, the operator extends all of the slider crank 50 in the vertical direction on the landing 21. Finally, as shown in FIG. 12, the four tension members 30 are attached so as to connect the horizontal frame 40 in the third stage from the top and the fixing bracket 15 of each outrigger 14. Specifically, two tension members 30 are attached so as to connect the two outriggers 14 on the front side of the base 100 and the horizontal frame 40 on the front side of the liftable scaffold 201, and the back side of the base 100. The two tension members 30 are attached so as to connect the two outriggers 14 and the horizontal frame 40 on the back side of the elevating scaffold 201. As a result, the liftable moving scaffold 300 including the base 100 and the liftable scaffold 201 is completed, and the raising of the liftable movable scaffold is completed.

  Hereinafter, the details of the tension member 30 shown in FIG. 12 will be described with reference to the drawings. FIG. 13 is an enlarged view (right side view) of the tension member 30 of FIG. 12B, and FIG. 14 is a front view of the tension member 30.

  As shown in FIGS. 13 and 14, the tension member 30 has an upper bar 31, an intermediate bar 32, and a lower bar 33. The upper bar 31, the intermediate bar 32, and the lower bar 33 are made of steel, for example. A hook 31 a is formed at the upper end of the upper bar 31, and a connecting plate 34 is fixed to the lower end of the upper bar 31. A lock fitting 32 a is fixed to the upper end portion of the intermediate bar 32. A hook 33 a is formed at the lower end of the lower bar 33.

  As shown in FIG. 13, the connection plate 34 is formed with a plurality (four in this example) of adjustment holes 34a through which the lock fittings 32a can be inserted. In this example, the upper bar 31 and the intermediate bar 32 can be connected by inserting the lock fitting 32a into one of the adjustment holes 34a and attaching the upper end of the intermediate bar 32 to the connecting plate 34. it can. As shown in FIGS. 13 and 14, the lower end of the intermediate bar 32 and the upper end of the lower bar 33 are connected by a turnbuckle 35.

  As shown in FIG. 13, with the upper bar 31, the intermediate bar 32, and the lower bar 33 connected, the hook 31a of the upper bar 31 is hooked on the horizontal frame 40, and the hook 33a of the lower bar 33 is By pulling on the fixing bracket 15, the tension member 30 can be attached to the liftable scaffold 201 and the base 100.

  In this example, the tensile material 30 can be stored in the base frame 11 when the base 100 is stored, for example, as shown in FIG.

(3) Effect As described above, the base 100 according to this example can raise the lifting movable scaffold by mounting the existing lifting scaffold 201. Specifically, the maximum height of the work table 60 can be increased by the height of the base 100. As a result, it is possible to perform work at a height that cannot be handled by the existing lifting and lowering moving scaffold 201. In this case, since a construction company etc. should just purchase only the base 100 instead of purchasing the raising / lowering type moving scaffold 201 newly, it can suppress purchase cost. In addition, since the number of liftable moving scaffolds 201 themselves owned by a construction company or the like does not increase, it is possible to prevent an increase in management costs and improve the operating rate per vehicle. In addition, since the base 100 is equipped with the wheel 12a, it can move to arbitrary positions in the state which mounts the raising / lowering scaffold 201. FIG.

  Further, in the base 100 according to the present example, four horns 19 (see FIG. 4) are formed on the base frame 11 (see FIG. 4). 19 is inserted into each column 7 (see FIG. 8) of the liftable scaffold 201. In this case, since each of the tenons 19 is inserted into each of the columns 7, the elevating scaffold 201 can be mounted on the additional base 100 in a stable state.

  Moreover, since each support | pillar 7 can be reliably fixed using the clamp 20 (refer FIG. 9) provided adjacent to each tenon 19, the raising / lowering scaffold 201 is fully stabilized on the base 100. be able to.

  Also, since the two horns 19 located on one diagonal line among the four horns 19 are longer than the other two horns 19, the two horns 19 having the longer length are placed on the column of the liftable scaffold 201 first. 7, the mounting work of the liftable scaffold 201 becomes easy. That is, the two ridges 19 having a long length can be used as the alignment ridges 19.

  Moreover, since the landing 100 (refer FIG. 4) is provided in the base 100 which concerns on this example, a worker climbs once to the landing 21 and work which raises / lowers the raising / lowering scaffold 201 easily and safely there. Can do.

  Further, an outrigger 14 (see FIG. 4) is attached to the base 100, and a non-slip 16 (FIG. 4) is attached to the surface of the upper frame 14a (see FIG. 4) of the outrigger 14. Thus, even when the upper frame 14a of the outrigger 14 is used as a trap, the operator can prevent the operator from stepping off the outrigger 14 with the anti-slip 16, so that the operator can easily and safely enter the landing 21. I can climb.

  In this example, a cane 17 (see FIGS. 4 to 6) is provided between the outrigger 14 and the base frame 11. Thereby, the outrigger 14 can be easily and accurately fixed at a predetermined position. Further, the wand 17 can improve the proof strength against the horizontal force of the outrigger 14. Thereby, the stability of the elevating scaffold 201 on the base 100 can be sufficiently improved. In addition, since a lateral member 11c (see FIG. 6) of the base frame 11 is formed with a pad 18 (see FIG. 4 (a) and FIG. 6) for restricting the movement of the wand 17 in the horizontal direction, The backlash of the cane 17 and the outrigger 14 can be reliably suppressed.

  Moreover, in this example, the outrigger 14 and the horizontal frame 40 of the elevating scaffold 201 are connected by a plurality of (in this example, four) tension members 30 (see FIGS. 12 to 14). These tensile members 30 apply a compressive force in the vertical direction to the lifting and lowering scaffold 201, so that play of each component of the lifting and lowering scaffold 201 is reduced, and shaking of the lifting and lowering scaffold 201 can be reduced. . Also, as shown in FIG. 12 (b), the tension member 30 on the front side of the liftable scaffold 201 is attached so that the lower end side is inclined forward, and the tension member 30 on the back side is inclined so that the lower end side is inclined rearward. It is attached. In this case, the elevating scaffold 201 is pulled in opposite directions by the two tensile members 30 on the front side and the two tensile members 30 on the rear side, so that the stability in the front-rear direction of the elevating scaffold 201 is sufficiently high. Can be improved. Thereby, the shaking in the front-rear direction of the liftable scaffold 201 can be reduced, and the safety and work efficiency of the operator can be improved. Also, as shown in FIG. 12 (a), the tension member 30 on the right side surface of the elevating scaffold 201 is attached so that the lower end side is inclined to the right side, and the lower end side of the tension member 30 on the left side is the left side. It is attached to be inclined. In this case, the lifting scaffold 201 is pulled in the opposite direction by the two tension members 30 on the right side and the two tension members 30 on the left side, so that the stability of the lifting platform 201 in the left-right direction is increased. It can be improved sufficiently. Thereby, the horizontal shaking of the elevating scaffold 201 can be reduced, and the operator's safety and work efficiency can be further improved.

  In addition, although it is preferable that the inclination angle to the front-back direction of the tension | tensile_strength material 30 with respect to a perpendicular direction (inclination angle with respect to the perpendicular direction of the tension | tensile_strength material 30 in FIG.12 (b)) is about 60 degrees, about 75 degrees-80 degrees. Even with this inclination angle, the swinging of the liftable scaffold 201 can be sufficiently reduced. Moreover, it is preferable that the inclination angle to the left-right direction of the tension | tensile_strength material 30 with respect to a perpendicular direction (The inclination angle with respect to the vertical direction of the tension | tensile_strength material 30 in Fig.12 (a)) is in the range of 90 degrees-85 degrees.

  In this example, since the intermediate bar 32 (see FIG. 13) and the lower bar 33 (see FIG. 13) are connected by the turnbuckle 35 (see FIG. 13), the tension member 30 is attached to the liftable scaffold 201. and even when attached to the base 100, the tension of the tension member 30 by turnbuckle 35 can be easily adjusted. In this case, since the tension of the four tension members 30 can be easily adjusted to the same magnitude, the stability of the liftable scaffold 201 can be easily improved.

  Further, a plurality of adjustment holes 34a (see FIG. 13) are formed in the connecting plate 34 (see FIG. 13) of the tension member 30, and the tension member 30 can be changed by changing the adjustment hole 34a into which the lock fitting 32a is inserted. The total length of the can be adjusted. Therefore, by adjusting the overall length of the tension member 30, the tension member 30 can be attached to an arbitrary horizontal frame 40 (see FIG. 12), and the horizontal frame 40 is expanded and contracted to adjust the height of the work table 60. In some cases, it can be attached.

(4) Other Examples In the above description, the case where the elevating scaffold 201 provided with the four-stage horizontal frame 40 is mounted on the base 100 has been described. However, as shown in FIG. The lifting / lowering scaffold 200 having the above-described structure may be mounted on the base 100, or the lifting / lowering scaffold (not shown) having the horizontal frame 40 having two or more stages may be mounted on the base 100. Good. In FIG. 15, (a) is a front view, and (b) is a right side view. Further, the liftable scaffold 200 shown in FIG. 15 has the same configuration as the liftable scaffold 200 described in FIGS. 1 and 2.

  Moreover, although the case where the support | pillar 7 (FIG. 9) of an elevating type scaffolding was fixed to the base 100 using the clamp 20 (FIG. 9) in the above was demonstrated, the fixing method of an elevating type scaffolding is not limited to said example. . For example, the elevating scaffold may be fixed on the base 100 by fixing the support column 7 and the horn 19 (see FIG. 8) using bolts, nuts, fixing pins or the like instead of the clamp 20. Moreover, instead of tenons 19, posts 7 may be formed on the base frame 11 can be fitted recesses or holes.

  Moreover, in the above, although the tension | tensile_strength material 30 which consists of the upper bar 31, the intermediate | middle bar 32, and the lower bar 33 was demonstrated, the structure of the tension | tensile_strength 30 is not limited to said example. For example, the tension member 30 may be composed of two or less bars or four or more bars. Moreover, you may use a spring material or a wire instead of a bar.

  Further, when a wire is used for the tension member 30, a chain block or the like may be used instead of the turnbuckle 35.

  Moreover, the attachment position of the tension | tensile_strength material 30 is not limited to said example, The tension | tensile_strength material 30 may be attached to another position, if the compressive force of a perpendicular direction can be applied to an elevating type scaffold. Specifically, in the above description, the case where the upper end of the tension member 30 is attached to the horizontal frame 40 on the front side and the rear side has been described. For example, the upper end of the tension member 30 is attached to the horizontal frame 40 or the column 69 on the side surface side. It may be attached. Here, the upper end portion of the tension member 30 is preferably attached to the four corners of the horizontal frame 40 or in the vicinity thereof. In the above description, the case where the upper end of the tension member 30 is attached to the third horizontal frame 40 from the top has been described. For example, the tension member 30 is attached to the top, second, or fourth level horizontal frame 40. You may attach an upper end. Moreover, in the above, although the case where the lower end of the tension | tensile_strength material 30 was attached to the outrigger 14 was demonstrated, you may attach the lower end of the tension | tensile_strength material 30 to the base frame 11, the support | pillar 12, or the landing 21 of the base 100, for example.

  Moreover, in the above, although the case where the non-slip 16 was provided in the outrigger 14 was demonstrated, the form of a non-slip is not limited to said example. For example, the surface roughness of the outrigger 14 may be increased to prevent slippage.

  In addition, although the case where the existing raising / lowering scaffolding was mounted on the base 100 was demonstrated in the above, the newly produced raising / lowering scaffolding may be mounted in the base 100, and it produces separately for the bases 100. The dedicated lifting / lowering scaffold may be mounted on the base 100.

  Further, in the above description, the case where the outrigger 14 is used as a trap when climbing the landing 21 has been described, but a dedicated trap may be separately provided as described below.

  FIG. 16 is a diagram illustrating an example when a dedicated trap is provided on the base 100. In the base 100 shown in FIG. 16, a trap 80 is provided on the side surface of one landing 21. In addition, you may provide the trap 80 in both landing 21.

  FIG. 17 is a diagram illustrating another example when a dedicated trap is provided on the base 100. In the base 100 shown in FIG. 17, a trap 81 is provided on the side surface of the base frame 11.

  ADVANTAGE OF THE INVENTION According to this invention, the base which makes it possible to respond | correspond to the operation | work at various heights using the existing raising / lowering type mobile scaffold, and the raising / lowering type mobile scaffold using this base can be provided. . Instead of the existing lifting and lowering moving scaffold, it can also be used with a newly created lifting and lowering scaffold.

DESCRIPTION OF SYMBOLS 5 Base frame 6 Wheel with brake lock 7 Base frame support | pillar 11 Base frame 11a, 11b, 11c Horizontal place 12 Post 12a Wheel with brake lock 13 Jack base 14 Outrigger 14a Upper frame 14
14b Lower frame 14
14c support 15 fixing bracket 16 anti-slip 17 wand 17a gripping bracket 17b hook bracket 18 pad 19 hozo 20 clamp 21 landing hall 22 coupling bracket 23 coupling bracket 24 landing hall receiving member 30 tension member 31 upper bar 31a hook 32 intermediate bar 32a Lock bracket 33 Lower bar 33a Hook 34 Connection plate 34a Adjustment hole 35 Turn buckle 40 Horizontal frame 41 Horizontal member of horizontal frame 50 X-shaped slider crank 51 Pin 52 Fastening 60 Work table 62 Handrail pillar 63 Handrail bar 64 Width Wood 69 Posts between frames (elevating traps)
70 Struts of struts between frames 71 Cross members of struts between frames 72 Diagonal materials of struts between frames 75 Jack base 76 Outriggers 80, 81 Talap 100 Base 200, 201 Lifting movable scaffolding (lifting scaffold)
300 Lifting type moving scaffold

Claims (12)

  Work with a base frame consisting of a rectangular base frame with wheels on the ground surface and movable and fixed in place, with a rectangular base frame with pillars erected at four corners, and a multi-level horizontally movable frame A platform that can be mounted on this platform with a lifting platform composed of a floor.   The base frame according to claim 1, wherein the base frame includes four ridges formed so as to correspond to support columns at four corners of the base frame.   The base frame according to claim 2, wherein the base frame includes four clamps respectively provided adjacent to the four horns.   4. The base according to claim 2, wherein the length of two tenons positioned on one of the four tenons is longer than the length of the other two tenons. 5.   The base according to any one of claims 1 to 4, wherein outriggers are respectively provided at four corners of the base frame.   The base according to claim 5, wherein an anti-slip is provided on a surface of at least one outrigger.   The base according to claim 5 or 6, wherein a cane is provided between the outrigger and the base frame. A plurality of tensile members capable of connecting any of the horizontal frames and the outrigger after raising the horizontal frame of the elevating scaffold;
The base according to any one of claims 5 to 7, wherein the tensile material can be attached at least to both ends of the front side and the back side of the base frame and the elevating scaffold.   The base according to claim 8, wherein the tension member is attached so as to be inclined so that a lower end side thereof is separated from the elevating scaffold.   The base according to any one of claims 1 to 9, wherein landing areas are provided at both ends of the base frame.   The base according to claim 10, wherein a trap is provided on a side surface of the landing or the base frame.   An elevating scaffold comprising a rectangular base frame with pillars erected at four corners, a plurality of vertically movable horizontal frames, and a work floor is mounted on the base according to any one of claims 1 to 11. Elevating type moving scaffold characterized by that.

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