Painting work tool

Abstract

To provide a painting work tool that allows a change in leg position according to the spacing of corrugated sheets on a painted roof, thereby enabling easy movement without carrying by hand, and ensuring stable sitting, which contribute to improved work efficiency.SOLUTION: A painting work tool (1) has a first movable leg section (23) and a second movable leg section (25) arranged below a top plate (2) at a predetermined spacing in a direction orthogonal to the direction of movement of the top plate (2). The first movable leg section (25a) and the second movable leg section (25b) include a slide mechanism that allows the spacing between the first movable leg section (25a) and the second movable leg section (25b) to be slidable (adjustable) in the orthogonal direction.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a tool for painting work.

Background Art

[0002] When painting (repainting) a corrugated roof with uneven surfaces, the operator carries a paint container and a roller (brush), squats down, paints the area that can be reached while squatting, and then repeats the operation of moving a little and painting the next area hundreds of times. Repeating the squatting motion during painting, the motion of standing up after painting, and the motion of moving to the next painting area is extremely physically demanding, and it becomes even more severe in harsh environments such as under the scorching sun in midsummer. Therefore, for example, by using a stool as shown in Patent Document 1, casters (wheels) are attached to the tips of the legs of the chair, making it easy to move without carrying it, and reducing the burden on the knees and waist.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the stool having the structure as disclosed in Patent Document 1 described above, since the intervals between the corrugated sheets of the roof to be painted vary, there is a problem that it cannot be stably sat on if the interval between the legs is different from the pitch of the corrugated sheets.

[0005] Therefore, an object of the present invention is to provide a painting tool that can be easily moved without carrying it by changing the leg positions according to the intervals between the corrugated sheets of the painted roof, can be stably sat on, and thus can improve the work efficiency.

Means for Solving the Problems

[0006] In order to solve the above problems, one aspect of the painting tool according to the present invention is a painting tool (1) in which a first movable leg portion (25a) and a second movable leg portion (25b) are arranged at a predetermined interval in a direction orthogonal to the direction in which the top plate moves below the top plate (2), wherein the first movable leg portion (25a) and the second movable leg portion (25b) have a slide mechanism that allows the interval between the first movable leg portion (25a) and the second movable leg portion (25b) to slide (move) freely in the orthogonal direction.

[0007] Also, another aspect of the painting tool according to the present invention is that the first movable leg portion (25a) includes a first leg portion (3) and a second leg portion (5) arranged at a predetermined interval from the first leg portion (3). The second movable leg portion (25b) includes a third leg portion (9) and a fourth leg portion (11) arranged at a predetermined interval from the third leg portion (9). The slide mechanism includes a first slide frame (4a) attached and fixed to the top plate side end portions of the first leg portion (3) and the third leg portion (9) and a part of the top plate, with a recess (31: groove) formed in the longitudinal direction, and a second slide frame (4b) attached and fixed to the top plate side end portions of the second leg portion and the fourth leg portion and a part of the top plate, with a recess (31) formed in the longitudinal direction. The first leg portion (3) is provided with first fixing portions (18a, 18b) for fixing the first leg portion (3) to the recess (31), the third leg portion (9) is provided with third fixing portions (18c, 18d) for fixing the third leg portion (9) to the recess (31), the second leg portion (5) is provided with second fixing portions (18e, 18f) for fixing the second leg portion (5) to the recess (31), the fourth leg portion (11) is provided with fourth fixing portions (18g, 18h) for fixing the fourth leg portion (11) to the recess (31). The first fixing portions (18a, 18b) and the third fixing portions (18c, 18d) slide along the first slide frame (4a), and the second fixing portions (18e, 18f) and the fourth fixing portions (18g, 18h) slide along the second slide frame (4b).

[0008] Further, another aspect of the painting work tool according to the present invention is that each of the first fixing portion (18a) and the third fixing portion (18c) has a tightening and loosening mechanism (10: screw portion) for fixing or loosening the first movable leg portion (25a) with respect to the recess (31), and each of the second fixing portion (18b) and the fourth fixing portion (18d) has a screw portion (10) for fixing or loosening the second movable leg portion (25b) with respect to the recess (31) of the second slide frame (4b), and it is characterized in that the first movable leg portion (25a) and the second movable leg portion (25b) can be moved or fixed by the screw portion (10).

[0009] Further, another aspect of the painting work tool according to the present invention uses a screw portion (10) that cooperates with a nut (12), and by screwing the screw portion (10) into the nut (12) provided inside the recess (31) from the outside of the recess (31), the first leg portion (3), the second leg portion (5), the third leg portion (9), and the fourth leg portion (11) are fixed to the recess (31), and by releasing the screwing of the screw portion (10) into the nut (12), the first leg portion (3), the second leg portion (5), the third leg portion (9), and the fourth leg portion (11) are enabled to move along the longitudinal direction of the recess (31).

[0010] In addition, another aspect of the painting tool according to the present invention includes a top plate placement frame (201) for placing the top plate (202). The first movable leg portion (225a) is located below the top plate placement frame (201), and includes a first leg portion (203) and a second leg portion (205) arranged at a predetermined interval from the first leg portion (203). The second movable leg portion (225b) is located below the top plate placement frame, and includes a third leg portion (209) and a fourth leg portion (211) arranged at a predetermined interval from the third leg portion (209). The slide mechanism includes a first slide bar (204a) attached and fixed to a part of the top plate placement frame, and a second slide bar (204b) attached and fixed to a part of the top plate placement frame and at a predetermined interval from the first slide bar (204a). A first hollow slide pipe (208a) having a square cross-section for sliding along the first slide bar (204a) is fixed to the first leg portion (203) in a state where the first slide bar 204a is inserted therein. A second hollow slide pipe (208b) having a square cross-section for sliding along the first slide bar (204a) is fixed to the third leg portion (209) in a state where the first slide bar (204a) is inserted therein. A third hollow slide pipe (208c) having a square cross-section for sliding along the second slide bar (204b) is fixed to the second leg portion (205) in a state where the second slide bar (204b) is inserted therein. A fourth hollow slide pipe (208d) having a square cross-section for sliding along the second slide bar (204b) is fixed to the fourth leg portion (211) in a state where the second slide bar (204b) is inserted therein. The first hollow slide pipe (208a) and the second hollow slide pipe (208b) slide along the first slide bar (204a), and the third hollow slide pipe (208c) and the fourth hollow slide pipe (208d) slide (slide) along the second slide bar (204b).

[0011] Another aspect of the painting tool according to the present invention is that the first hollow slide pipe (208a), the second hollow slide pipe (208b), the third hollow slide pipe (208c), and the fourth hollow slide pipe (208d) are each provided with a screw portion (210) for fixing or loosening the first hollow slide pipe (208a), the second hollow slide pipe (208b), the third hollow slide pipe (208c), and the fourth hollow slide pipe (208d), and the screw portion enables the first movable leg portion (225a) and the second movable leg portion (225b) to be moved or fixed.

[0012] Another aspect of the painting tool according to the present invention uses a screw portion (210) that cooperates with a nut (212), and by screwing the screw portion (210) into the nut (12) provided in the hollow portions of the first hollow slide pipe (208a), the second hollow slide pipe (208b), the third hollow slide pipe (208c), and the fourth hollow slide pipe (208d), the first leg portion (203), the second leg portion (205), the third leg portion (209), and the fourth leg portion (211) are fixed, and by releasing the screwing of the screw portion (210) to the nut (212), the first leg portion (203), the second leg portion (205), the third leg portion (209), and the fourth leg portion (211) are made movable.

[0013] Another aspect of the painting tool according to the present invention is that the first movable leg portion (25a, 225a) has a first connecting portion (7, 207) that connects the first leg portion (3, 203) and the second leg portion (5, 205), the second movable leg portion (25b, 225b) has a second connecting portion (13, 213) that connects the third leg portion (9, 209) and the fourth leg portion (11, 211), and casters (15, 215) are attached near both ends of the first connecting portion (7, 207) and the second connecting portion (13, 213).

Advantages of the Invention

[0014] According to the present invention, it is possible to provide a painting work tool that can be easily moved without being carried by changing the leg position according to the pitch of the corrugated sheets of the painted roof, can be stably seated, and thus can improve the work efficiency.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Modes for Carrying Out the Invention

[0016] <Embodiment 1> Hereinafter, Embodiment 1 of the painting work tool according to the present invention will be described with reference to the drawings. Note that the embodiments shown below are examples of the present invention, and the present invention is not limited to the following embodiments, and various configurations can also be adopted.

[0017] Here, FIG. 1 is an overall perspective view of the painting work tool according to the present invention and is a diagram for explaining the mechanism for fixing (locking) and loosening (unlocking) the movable legs.

[0018] The painting work tool 1 includes a top plate (seat part) 2 and first movable legs 25a and second movable legs 25b that are movable below the top plate 2. The first movable legs 25a and the second movable legs 25b are arranged at a predetermined interval. The first movable leg 25a includes a first leg 3, a second leg 5 arranged at a predetermined interval from the first leg 3, and a first connecting part 7 that connects (couples) the first leg 3 and the second leg 5. The second movable leg 25b includes a third leg 9, a fourth leg 11 arranged at a predetermined interval from the third leg 9, and a second connecting part 13 that connects the third leg 9 and the fourth leg 11.

[0019] On the lower surface of the top plate 2 and on the front direction (refer to FIG. 1) end side, a first slide frame (slide bar) 4a having a rectangular cross section with a recess (groove) 31 (refer to FIG. 2) formed in the longitudinal direction is fixed. The upper ends of the first leg portion 3 and the third leg portion 9 are in contact with the lower surface of the first slide frame 4a. On the lower surface of the top plate 2 and on the rear direction (refer to FIG. 1) end side, a second slide frame (slide bar) 4b having a rectangular cross section with a recess (groove) 31 (refer to FIG. 2) formed in the longitudinal direction is fixed. The upper ends of the second leg portion 5 and the fourth leg portion 11 are in contact with the lower surface of the second slide frame 4b. Note that although this recess 31 is formed on four surfaces (upper surface, lower surface, right side surface, left side surface) of the frame, only one surface is used for sliding as described later, so the other recesses do not have to be formed. Also, the above-mentioned fixing means welding fixing, but is not limited thereto. Casters 15 are attached near the lower sides of both ends of the first connecting portion 7 and the second connecting portion 13, respectively. A first connecting frame 6a for connecting one end portion of the first slide frame 4a and one end portion of the second slide frame 4b is provided, and a second connecting frame 6b for connecting the other end portion of the first slide frame 4a and the other end portion of the second slide frame 4b is provided.

[0020] <Slide mechanism of the first movable leg portion 25a> A pair of first fixing portions 18a and 18b for fixing the first leg portion 3 to the recess 31 (or sliding along the recess) are provided on the first leg portion 3. The first fixing portion 18a has a bracket 8a and a wing nut 10 for fixing or loosening the bracket 8a to the first slide frame 4a. The first fixing portion 18b has a bracket 8b and a wing nut 10 for fixing or loosening the bracket 8b to the first slide frame 4a. A pair of second fixing portions 18e and 18f for fixing the second leg portion 5 to the recess 31 (or sliding along the recess) are provided on the second leg portion 5. The second fixing portion 18e has a bracket 8e and a wing nut 10 for fixing or loosening the bracket 8e to the second slide frame 4b. The second fixing portion 18f has a bracket 8f and a wing nut 10 for fixing or loosening the bracket 8f to the second slide frame 4b.

[0021] As shown in FIGS. 2 and 3, the wing screw 10 is composed of a screw head 10a and a rod (male screw portion) 10b having a thread (reference numeral omitted). When the bolt portion 10b is inserted into the through hole 32 and the screw head 10a is rotated (for example, rotated clockwise), the thread of the bolt portion 10b is screwed into a nut 12 (female screw portion) having a screw groove (reference numeral omitted) disposed (placed) in the recess 31 formed in each of the brackets 8a, 8b, 8e, 8f. The bolt portion 10b is rotated toward the bottom surface of the recess 31 to such an extent that the tip of the bolt portion 10b does not reach the bottom surface of the recess 31. At this time, the first fixing portions 18a, 18b and the second fixing portions 18e, 18f are still in a slidable state.

[0022] Next, after the first fixing portions 18a, 18b and the second fixing portions 18e, 18f are each slid to a desired position along the longitudinal direction of the first slide frame 4a and the second slide frame 4b, the screw head 10a of the wing screw 10 is rotated in the forward direction (for example, rotated clockwise) to screw the bolt portion 10b into the nut 12 through the through hole 32 and rotate the bolt portion 10b until the tip of the bolt portion 10b reaches the bottom surface of the recess 31. When the tip of the bolt portion 10b reaches the bottom surface, the first fixing portions 18a, 18b are fixed at a desired position of the first slide frame 4a and the second fixing portions 18e, 18f are fixed at a desired position of the second slide frame 4b. Here, the first fixing portions 18a, 18b and the second fixing portions 18e, 18f are slid simultaneously along the moving direction, and the slide distances along the moving direction of both are approximately the same distance from the reference position based on the position before sliding.

[0023] In addition, when it is desired to slide the first fixing portions 18a and 18b and the second fixing portions 18e and 18f to another desired position after fixing them by sliding (for example, fixing in the state shown in Fig. 5(a)), first, the wing screw 10 is rotated counterclockwise (for example, rotated counterclockwise) to release the screwing with respect to the nut 12. Then, after sliding to another desired position, the wing screw 10 is rotated in the forward direction (for example, rotated clockwise) to screw it to the nut 12, so that the first fixing portions 18a and 18b are fixed at another desired position of the first slide frame 4a and the second fixing portions 18e and 18f are fixed at another desired position of the second slide frame 4b (for example, fixed in the state shown in Fig. 5(b)).

[0024] In addition to the above-described screwing mechanism, for example, female threads may be formed in the through holes 32 for screwing. In this case, the nut is not required.

[0025] <Slide mechanism of the second movable leg portion 25b> A pair of third fixing portions 18c and 18d for fixing the third leg portion 9 to the recess 31 (or sliding along the recess) are provided on the third leg portion 9. The third fixing portion 18c has a bracket 8c and a wing screw 10 for fixing or loosening the bracket 8c to the first slide frame 4a. The third fixing portion 18d has a bracket 8d and a wing screw 10 for fixing or loosening the bracket 8d to the first slide frame 4a. A pair of fourth fixing portions 18g and 18h for fixing the fourth leg portion 11 to the recess 31 (or sliding along the recess) are provided on the fourth leg portion 11. The fourth fixing portion 18g has a bracket 8g and a wing screw 10 for fixing or loosening the bracket 8g to the second slide frame 4b. The fourth fixing portion 18h has a bracket 8h and a wing screw 10 for fixing or loosening the bracket 8h to the second slide frame 4b.

[0026] As shown in FIG. 3, the wing screw 10 comprises a screw head 10a and a bolt portion (male screw portion) 10b that extends from the screw head 10a and has a thread 33 formed on the screw tip side. In FIG. 3, the bolt portion 10b with a thread 33 formed at the tip and the screw head 10a are shown as an integral screw portion 10. However, in addition to this, threads may be formed on all bolt portions, and the bolt portion and the screw head 10a may be an integral screw portion. When the bolt portion 10b is inserted into the through-hole 32 and the screw head 10a is rotated (e.g., rotated clockwise), the thread of the bolt portion 10b is screwed into a nut 12 (female screw portion) having a thread groove (reference numeral omitted) disposed (placed) in the recess 31 formed in each of the brackets 8c, 8d, 8g, 8h. The bolt portion 10b is rotated toward the bottom surface of the recess 31 to such an extent that the tip of the bolt portion 10b does not reach the bottom surface of the recess 31. At this time, the third fixing portions 18c, 18d and the fourth fixing portions 18g, 18h are still in a slidable state.

[0027] Next, after sliding the third fixing portions 18c, 18d and the fourth fixing portions 18g, 18h to desired positions along the longitudinal directions of the first slide frame 4a and the second slide frame 4b respectively, the screw head 10a of the wing screw 10 is rotated in the forward direction (e.g., rotated clockwise) to screw the bolt portion 10b into the nut 12 through the through-hole 32 and rotate the bolt portion 10b until the tip of the bolt portion 10b reaches the bottom surface of the recess 31. When the tip of the bolt portion 10b reaches the bottom surface, the third fixing portions 18c, 18d are fixed at the desired positions of the first slide frame 4a and the fourth fixing portions 18g, 18h are fixed at the desired positions of the second slide frame 4b. Here, the third fixing portions 18c, 18d and the fourth fixing portions 18g, 18h are slid simultaneously along the moving direction, and the slide distances along the moving directions of both are approximately the same distance from the reference position with respect to the position before sliding.

[0028] In addition, when it is desired to slide the third fixing portions 18c and 18d and the fourth fixing portions 18g and 18h to another desired position after fixing them by sliding movement, first, the wing screw 10 is rotated counterclockwise (for example, rotated counterclockwise) to release the screwing with respect to the nut 12. Then, after sliding to another desired position, the wing screw 10 is rotated in the forward direction (for example, rotated clockwise) to screw it into the nut 12, so that the third fixing portions 18c and 18d are fixed at another desired position of the first slide frame 4a and the fourth fixing portions 18g and 18h are fixed at another desired position of the second slide frame 4b.

[0029] In addition to the above-described screwing mechanism, for example, a female screw may be formed in the through hole 32 for screwing. In this case, the nut is not required.

[0030] <Example of Use of Tool for Corrugated Sheet of Painted Roof 1> As shown in FIG. 6(a), when the interval between the corrugated sheets 50 arranged in parallel along the longitudinal direction is L1, the first movable leg portion 25a and the second movable leg portion 25b are slid in accordance with the interval L1, and fixed (locked) when the interval between the first movable leg portion 25a and the second movable leg portion 25b becomes L1.

[0031] <Example of Use of Tool for Corrugated Sheet of Painted Roof 2> As shown in FIG. 6(b), when the interval between two corrugated sheets 50 is L2, the first movable leg portion 25a and the second movable leg portion 25b are slid in accordance with the interval L1, and fixed (locked) when the interval between the first movable leg portion 25a and the second movable leg portion 25b becomes L2.

[0032] <Example of Use of Tool for Corrugated Sheet of Painted Roof 3> As shown in FIG. 6(c), when the width of the bottom surface of the trough portion of the large corrugated sheet 60 is L3, the first movable leg portion 25a and the second movable leg portion 25b are slid in accordance with the bottom surface width L3, and fixed (locked) when the interval between the first movable leg portion 25a and the second movable leg portion 25b becomes L3.

[0033] <Effect> Therefore, according to the above configuration, by changing the leg positions according to the intervals between the corrugated sheets of the painted roof, it is possible to move easily without carrying and sit stably, thereby improving the work efficiency.

[0034] <Embodiment 2> Hereinafter, Embodiment 2 of the painting work tool according to the present invention will be described with reference to the drawings. Since Embodiment 2 is the same as Embodiment 1 except for the different slide mechanisms, only the different parts will be described, and the description of the similar parts will be omitted. Also, the same reference numerals may be used for the similar parts when there is no need to distinguish them.

[0035] The painting work tool 150 includes a top plate (seating part) 2 and a first movable leg part 125a and a second movable leg part 125b that are movable below the top plate 2. The first movable leg part 125a and the second movable leg part 125b are arranged at a predetermined interval. The first movable leg part 125a includes a first leg part 3, a second leg part 5 arranged at a predetermined interval from the first leg part 3, and a first connecting part 7 that connects (couples) the first leg part 3 and the second leg part 5. The second movable leg part 25b includes a third leg part 9, a fourth leg part 11 arranged at a predetermined interval from the third leg part 9, and a second connecting part 13 that connects the third leg part 9 and the fourth leg part 11.

[0036] On the lower surface of the top plate 2 and on the frontward (see Fig. 7) end side, a first slide frame (slide bar) 4a having a square cross-section with a longitudinal recess (groove) 31 (see Fig. 7) formed therein is fixed. A part of the side surfaces of the first leg portion 3 and the third leg portion 9 is in contact with the side surface of the first slide frame 4a. On the lower surface of the top plate 2 and on the rearward (see Fig. 7) end side, a second slide frame (slide bar) 4b having a square cross-section with a longitudinal recess (groove) 31 (see Fig. 7) formed therein is fixed. A part of the side surfaces of the second leg portion 5 and the fourth leg portion 11 is in contact with the side surface of the second slide frame 4b. Note that although this groove 31 is formed on the four surfaces (upper surface, lower surface, right side surface, left side surface) of the frame, only one surface is used for sliding as described later, so the other recesses do not necessarily need to be formed. Also, the above-mentioned fixing means welding fixation, but is not limited thereto. Casters 15 are attached near the lower sides of both ends of the first connecting portion 7 and the second connecting portion 13, respectively.

[0037] The difference from the first embodiment is that the first fixing portions 18a and 18b are fixed (or slide along the recess) to the recess 31 on the front side surface of the first slide frame 4a, the second fixing portions 18e and 18f are fixed (or slide along the recess) to the recess 31 on the rear side surface of the second slide frame 4b, the third fixing portions 18c and 18d are fixed (or slide along the recess) to the recess 31 on the front side surface of the first slide frame 4a, and the fourth fixing portions 18g and 18h are fixed (or slide along the recess) to the recess 31 on the rear side surface of the second slide frame 4b. Otherwise, they are the same. Therefore, since the configurations of the movable mechanisms of the first movable leg portion 25a and the second movable leg portion 25b are the same, their descriptions are omitted. Also, regarding the usage example of the tool according to the second embodiment on the corrugated sheet of the painted roof, since it is the same as the description content in the above paragraphs (0031) to (0033), the description is omitted here.

[0038] <Effect> Therefore, according to the configuration of the second embodiment, by changing the leg positions according to the intervals of the corrugated sheets of the painted roof, it is possible to easily move without carrying and sit stably, and thus provide a painting tool with a simple configuration that can improve work efficiency. <Embodiment 3> Hereinafter, Embodiment 3 of the painting tool according to the present invention will be described with reference to FIGS. 8 to 10. Since Embodiment 3 is the same as Embodiment 1 except for the different slide mechanisms, only the different parts will be described, and the description of the similar parts will be omitted. Also, the same reference numerals may be used for the similar parts when there is no need to distinguish them.

[0039] The painting tool 200 includes a top plate (seating part) 202 (see FIG. 9), a top plate mounting frame 201 on which the top plate (seating part) 202 is placed, a first movable leg part 225a that is arranged below (lower side) and at the front end side (see FIG. 8) of the top plate 202 and is movable in the left-right direction (see FIG. 8), and a second movable leg part 225b that is arranged below (lower side) and at the rear end side (see FIG. 8) of the top plate 202 and is movable in the left-right direction (see FIG. 8). As shown in FIG. 9, the top plate mounting frame 201 is formed by integrally molding a first frame member (hereinafter referred to as "front frame member") 2011, a second frame member (hereinafter referred to as "rear frame member") 2012, a third frame member (hereinafter referred to as "right frame member") 2013, and a fourth frame member (hereinafter referred to as "left frame member") 2014. Each of the front frame member 2011, the rear frame member 2012, the right frame member 2013, and the left frame member 2014 is composed of a side plate 201a and a bottom plate 201b that is perpendicular to the plate surface of the side plate 201a and extends inward. That is, the top plate 202 is placed on the upper surfaces of the bottom plates 201b of the front frame member 2011, the rear frame member 2012, the right frame member 2013, and the left frame member 2014 respectively.

[0040] The first movable leg portion 225a and the second movable leg portion 225b are arranged at a predetermined interval from each other in the left - right direction. The first movable leg portion 225a includes a first leg portion 203, a second leg portion 205 arranged at a predetermined interval from the first leg portion 203 in the front - rear direction (see FIG. 8), and a first connecting portion 207 that connects (couples) the first leg portion 203 and the second leg portion 205. The second movable leg portion 225b includes a third leg portion 209, a fourth leg portion 211 arranged at a predetermined interval from the third leg portion 209 in the front - rear direction, and a second connecting portion 213 that connects the third leg portion 209 and the fourth leg portion 211.

[0041] <Slide mechanism of the first movable leg portion 225a and the second movable leg portion 225b> A first slide bar 204a having a square - shaped cross - section extending along the longitudinal direction is welded and fixed to the lower surface of the bottom plate 201b of the front frame member 2011 in the top - plate mounting frame 201. A second slide bar 204b having a square - shaped cross - section extending along the longitudinal direction is welded and fixed to the lower surface of the bottom plate 201b of the rear frame member 2012 in the top - plate mounting frame 201. In the third embodiment, the first slide bar 204a and the second slide bar 204b are exemplified as hollow so - called square pipes, but they may be solid square bars.

[0042] A first hollow slide pipe (square pipe) 208a having a square - shaped cross - section for attachment to the first slide bar 204a and for sliding along the first slide bar 204a is fixed to the first leg portion 203. That is, the first slide bar 204a is inserted and fitted into the hollow of the first hollow slide pipe 208a (insertion - fitting state). A second hollow slide pipe (square pipe) 208b having a square - shaped cross - section for attachment to the first slide bar 204a and for sliding along the first slide bar 204a is fixed to the third leg portion 209. That is, the first slide bar 204a is inserted and fitted into the hollow of the second hollow slide pipe 208b (insertion - fitting state). Note that the above - mentioned fixing means welding and fixing, but is not limited thereto, and it may be integrally formed with the first leg portion 203 or the third leg portion 209.

[0043] The first hollow slide pipe 208a and the second hollow slide pipe 208b each have a butterfly screw 210 for fixing or loosening the first hollow slide pipe 208a and the second hollow slide pipe 208b to or from the first slide bar 204a. As shown in FIG. 10, the butterfly screw 210 is composed of a screw head 210a and a bolt portion (male screw portion) 210b extending from the screw head 210a and having a thread 232 formed on the screw tip side. In FIG. 10, although it is illustrated as a screw portion 210 in which the bolt portion 210b having a thread 232 formed at the tip and the screw head 210a are integrally formed, threads may be formed on all bolt portions, and the bolt portion and the screw head 210a may be integrally formed screw portions.

[0044] When the bolt portion 210b is inserted into through holes (reference numerals omitted) formed in the first hollow slide pipe 208a and the second hollow slide pipe 208b and the screw head 210a is rotated (for example, rotated clockwise), the thread 232 of the bolt portion 210b is screwed into a nut 212 (female screw portion) having a thread groove (reference numerals omitted) disposed (placed) in the hollow of the first hollow slide pipe 208a and the second hollow slide pipe 208b. The bolt portion 210b is rotated toward the outer peripheral surface of the first slide bar 204a to such an extent that the tip of the bolt portion 210b does not reach the outer peripheral surface of the first slide bar 204a. At this time, the first hollow slide pipe 208a and the second hollow slide pipe 208b are still in a slidable state.

[0045] Next, after sliding each of the first hollow slide pipe 208a and the second hollow slide pipe 208b to a desired position along the longitudinal direction of the first slide bar 204a, the screw head 210a of the butterfly screw 210 is rotated in the forward direction (for example, clockwise) to screw the bolt portion 210b into the nut 212 through the above-described through hole (reference numeral omitted), and the bolt portion 210b is rotated until the tip of the bolt portion 210b reaches the outer peripheral surface of the first slide bar 204a. When the tip of the bolt portion 210b reaches the outer peripheral surface of the first slide bar 204a, the first hollow slide pipe 208a and the second hollow slide pipe 208b are fixed at the desired position of the first slide bar 204a. Here, the first hollow slide pipe 208a and the second hollow slide pipe 208b are simultaneously slid along the moving direction, and the slide distance along the moving direction of both is approximately the same distance from the reference position based on the position before sliding.

[0046] In addition, when it is desired to slide the first hollow slide pipe 208a and the second hollow slide pipe 208b to another desired position after sliding and fixing them, first, the butterfly screw 210 is rotated in the reverse direction (for example, counterclockwise) to release the screwing with respect to the nut 212. Then, after sliding to another desired position, the butterfly screw 210 is rotated in the forward direction (for example, clockwise) to screw it into the nut 212 to fix the first hollow slide pipe 208a and the second hollow slide pipe 208b at another desired position of the first slide bar 204a.

[0047] The second leg portion 205 is fixed with a third hollow slide pipe (square pipe) 208c having a square cross-section for sliding along the second slide bar 204b and attached to the second slide bar 204b. That is, the second slide bar 204b is inserted into and fitted into the hollow of the third hollow slide pipe 208c (insertion and fitting state). The fourth leg portion 211 is fixed with a fourth hollow slide pipe (square pipe) 208d having a square cross-section for sliding along the second slide bar 204b and attached to the second slide bar 204b. That is, the second slide bar 204b is inserted into and fitted into the hollow of the fourth hollow slide pipe 208d (insertion and fitting state). Note that the above-mentioned fixing means welding fixation, but is not limited thereto, and the second leg portion 205 and the fourth leg portion 211 may be integrally formed.

[0048] The third hollow slide pipe 208c and the fourth hollow slide pipe 208d each have a butterfly screw 210 for fixing and loosening the third hollow slide pipe 208c and the fourth hollow slide pipe 208d to and from the second slide bar 204b. Since the configuration of the butterfly screw 210 is the same as above, the description thereof is omitted.

[0049] When the bolt portion 210b is inserted into through holes (reference numerals omitted) formed in the third hollow slide pipe 208c and the fourth hollow slide pipe 208d and the screw head portion 210a is rotated (for example, rotated clockwise), the thread 232 of the bolt portion 210b is screwed into a nut 212 (female screw portion) having a thread groove (reference numerals omitted) disposed (placed) in the hollows of the third hollow slide pipe 208c and the fourth hollow slide pipe 208d. The bolt portion 210b is rotated toward the outer peripheral surface of the second slide bar 204b to such an extent that the tip of the bolt portion 210b does not reach the outer peripheral surface of the second slide bar 204b. At this time, the third hollow slide pipe 208c and the fourth hollow slide pipe 208d are still in a slidable state.

[0050] Next, after sliding each of the third hollow slide pipe 208c and the fourth hollow slide pipe 208d to a desired position along the longitudinal direction of the second slide bar 204b, the screw head 210a of the wing screw 210 is rotated in the forward direction (for example, clockwise) to screw the bolt portion 210b into the nut 212 through the above-described through hole (reference numeral omitted), and the bolt portion 210b is rotated until the tip of the bolt portion 210b reaches the outer peripheral surface of the second slide bar 204b. When the tip of the bolt portion 210b reaches the outer peripheral surface of the second slide bar 204b, the third hollow slide pipe 208c and the fourth hollow slide pipe 208d are fixed at the desired positions of the second slide bar 204b. Here, the third hollow slide pipe 208c and the fourth hollow slide pipe 208d are simultaneously slid along the moving direction, and the slide distance along the moving direction of both is approximately the same distance from the reference position with respect to the position before sliding.

[0051] In addition, when it is desired to slide the third hollow slide pipe 208c and the fourth hollow slide pipe 208d to another desired position after sliding and fixing them, first, the wing screw 210 is rotated in the reverse direction (for example, counterclockwise) to release the screwing with respect to the nut 212, and then, after sliding to another desired position, the wing screw 210 is rotated in the forward direction (for example, clockwise) to screw it into the nut 212 to fix the third hollow slide pipe 208c and the fourth hollow slide pipe 208d at another desired position of the second slide bar 204b. In addition to the above-described screwing mechanism, for example, a female screw may be formed in the above-described through hole (reference numeral omitted) for screwing. In this case, the nut becomes unnecessary. Also, the usage example of the tool according to the above-described Embodiment 3 for the corrugated sheet of the painted roof is the same as the description in the above-described paragraphs (0031) to (0033), and thus the description is omitted here.

[0052] <Effect> Therefore, according to the configuration of the tool in the above-described Embodiment 3, it can be easily moved and stably seated without being carried by changing the leg position according to the interval of the corrugated sheets of the painted roof with a simple structure, thereby improving the work efficiency. Further, since the top plate can be removed, not only a flat wooden top plate but also a top plate of preference, for example, a top plate made of a light-weight material, a cushioned top plate, etc. can be used, and various top plates can be selected and replaced according to preference.

[0053] Note that the embodiments of the present invention are not limited to the above-described embodiments, and various modifications are possible without departing from the gist of the present invention.

Explanation of Signs

[0054] 1... Painting work tool 2, 202... Top plate 3, 203... First leg 4a, 204a... First slide frame 4b, 204b... Second slide frame 5, 201... Second leg 7, 207... First connecting part 9, 209...... Third leg 10, 210... Screw part 11, 211... Fourth leg 12, 212... Nut 13, 213... Second connecting part 15, 215... Caster 18a, 18b... First fixing part 18c, 18d... Third fixing part 18g, 18h... Fourth fixing part 18e, 18f... Second fixing part 25a, 225a... First movable leg 25b, 225b... Second movable leg 31... Recess (groove) 201... Top plate mounting frame (top plate mounting frame frame)

Claims

1. A painting tool in which a first movable leg and a second movable leg are arranged at a predetermined interval in a direction orthogonal to the direction in which the top plate moves, below the top plate, wherein the first movable leg and the second movable leg have a slide mechanism that enables the interval between the first movable leg and the second movable leg to slide freely in the orthogonal direction. A painting tool characterized by this.

2. The first movable leg includes a first leg and a second leg arranged at a predetermined interval from the first leg. The second movable leg includes a third leg and a fourth leg arranged at a predetermined interval from the third leg. The slide mechanism is a first slide frame attached and fixed to the end portions of the first leg and the third leg on the top plate side and a part of the top plate, with a recess formed in the longitudinal direction; and a second slide frame attached and fixed to the end portions of the second leg and the fourth leg on the top plate side and a part of the top plate, with a recess formed in the longitudinal direction. The first leg is provided with a first fixing portion for fixing the first leg to the recess, and the third leg is provided with a third fixing portion for fixing the third leg to the recess. The second leg is provided with a second fixing portion for fixing the second leg to the recess, and the fourth leg is provided with a fourth fixing portion for fixing the fourth leg to the recess. The first fixing portion and the third fixing portion slide along the first slide frame, and the second fixing portion and the fourth fixing portion slide along the second slide frame. The painting tool according to claim 1, characterized by this.

3. Each of the first fixing portion and the third fixing portion has a tightening and loosening mechanism for fixing or loosening the first movable leg with respect to the recess. Each of the second fixing portion and the fourth fixing portion has a screw portion for fixing or loosening the second movable leg with respect to the recess of the second slide frame. It is possible to move or fix the first movable leg and the second movable leg by the screw portion. The painting tool according to claim 2, characterized by this.

4. Using the threaded portion that cooperates with the nut, screwing the threaded portion from the outside of the concave portion to the nut provided inside the concave portion to fix the first leg portion, the second leg portion, the third leg portion, and the fourth leg portion to the concave portion, and releasing the screwing of the threaded portion to the nut enables the first leg portion, the second leg portion, the third leg portion, and the fourth leg portion to move along the longitudinal direction of the concave portion. The painting work tool according to claim 3, characterized in that.

5. Comprising a top plate placement frame for placing the top plate. The first movable leg portion is located below the top plate placement frame and includes a first leg portion and a second leg portion arranged at a predetermined interval from the first leg portion. The second movable leg portion is located below the top plate placement frame and includes a third leg portion and a fourth leg portion arranged at a predetermined interval from the third leg portion. The slide mechanism is. A first slide bar attached and fixed to a part of the top plate placement frame. And a second slide bar attached and fixed to a part of the top plate placement frame and at a predetermined interval from the first slide bar. A first hollow slide pipe having a square cross-section for sliding along the first slide bar is fixed to the first leg portion in a state where the first slide bar is inserted therein. A second hollow slide pipe having a square cross-section for sliding along the first slide bar is fixed to the third leg portion in a state where the first slide bar is inserted therein. A third hollow slide pipe having a square cross-section for sliding along the second slide bar is fixed to the second leg portion in a state where the second slide bar is inserted therein. A fourth hollow slide pipe having a square cross-section for sliding along the second slide bar is fixed to the fourth leg portion in a state where the second slide bar is inserted therein. The first hollow slide pipe and the second hollow slide pipe slide along the first slide bar, and the third hollow slide pipe and the fourth hollow slide pipe slide along the second slide bar. The painting work tool according to claim 1, characterized in that.

6. The first hollow slide pipe, the second hollow slide pipe, the third hollow slide pipe, and the fourth hollow slide pipe are each provided with a screw portion for fixing or loosening the first hollow slide pipe, the second hollow slide pipe, the third hollow slide pipe, and the fourth hollow slide pipe, which enables the first movable leg portion and the second movable leg portion to be moved or fixed by the screw portion, The painting tool according to claim 5, characterized in that.

7. Using the screw portion that cooperates with the nut, the screw portion is screwed into the nut provided in the hollow portions of the first hollow slide pipe, the second hollow slide pipe, the third hollow slide pipe, and the fourth hollow slide pipe to fix the first leg portion, the second leg portion, the third leg portion, and the fourth leg portion, and by releasing the screwing of the screw portion to the nut, the first leg portion, the second leg portion, the third leg portion, and the fourth leg portion are made movable, The painting tool according to claim 6, characterized in that.

8. The first movable leg portion has a first connecting portion that connects the first leg portion and the second leg portion, The second movable leg portion has a second connecting portion that connects the third leg portion and the fourth leg portion, Casters are attached near both ends of the first connecting portion and the second connecting portion, The painting tool according to any one of claims 1 to 7, characterized in that.

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