Stand for device for driving machine screws or the likes

JP2025038555A5Pending Publication Date: 2026-09-04SUMITOMO FORESTRY CO LTD +1
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Patent Information

Application Number
JP2023145241
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-07
Publication Date
2026-09-04

AI Technical Summary

Technical Problem

When using a driving device to secure a ceiling board to the ceiling base, operators must look up to ensure proper screwing or nailing, which can be burdensome and increase the risk of errors.

Method used

A stand for the driving device that includes a support body with a holder at the upper end to removably hold the driving device, a mirror body to reflect the driving position of screws or nails, and a lever body connected to the driving device via a cable system, allowing the operator to screw or nail without looking up.

Benefits of technology

The stand enables operators to securely fasten ceiling boards without looking up, reducing operator fatigue and improving accuracy by providing a clear view of the driving position through the mirror body.

✦ Generated by Eureka AI based on patent content.

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Abstract

To allow a worker to fasten a board to a predetermined position properly with machine screws or nails by using a driving device without being forced to look up at a ceiling.SOLUTION: A stand for a device for driving machine screws or the likes includes: a column body 2; a driving device holding body 3 which is provided on an upper end 2a of the column body 2 and removably holds the driving device N; a seat body 4 which is provided on a lower end 2b of the column body 2 and keeps the column body 2 in an upright state; an operation body 5 provided on an intermediate part of the column body 2; a mirror body 6 which is supported by the operation body 5 so as to reflect a portion into which machine screws or nails are driven; a lever body 7 supported by the operation body 5; and linking means which links the lever body 7 and the driving device N to each other so that the machine screws or the nails may be ejected from the driving device N by operating the lever body 7.SELECTED DRAWING: Figure 3
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Description

[Technical field]

[0001] The present invention relates to a stand capable of supporting a driving device near a ceiling when a ceiling board is screwed or nailed to a ceiling substrate of a building from below using the driving device. [Background technology]

[0002] The ceilings and walls of buildings are constructed by fastening ceiling boards and interior wall boards to the above base. For such fastening, a known driving device (an electric tool that automatically drives pre-loaded screws using the air pressure supplied from an air compressor by pulling a trigger that acts as a switch, also called a screw driver or nail driver) that is configured to continuously drive screws etc. is widely used.

[0003] When fastening ceiling boards using such a driving device, the worker must stand on a stepladder or the like while holding the driving device and looking up at the ceiling from below, which places a heavy burden on the worker.

[0004] Incidentally, there is a technology disclosed in Patent Document 1 that makes it easier to screw into wallboards at high altitudes. The technology in Patent Document 1 has a structure that supports the driving part that drives the screws so that it can be raised and lowered. Although the technology in Patent Document 1 eliminates the burden of standing on a stepladder while holding the driving device, it forces the worker to look up to check the screw driving position. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2020-146772 A Summary of the Invention [Problem to be solved by the invention]

[0006] The main problem that this invention aims to solve is how to use the driving device to properly screw or nail a ceiling board into a ceiling substrate without forcing the worker to look up at the ceiling. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides a stand for a screw driving device, comprising: A stand for supporting a screw or nail driving device when fastening a ceiling board of a building with a screw or nail, A support body; A holder for the driving device provided at an upper end of the support body and removably holding the driving device; A base provided at a lower end of the support body to keep the support body upright; An operating body provided at a middle portion of the support body; A mirror body supported on the operation body so as to be able to reflect the location where the screw or nail is to be driven; A lever body supported by the operating body; The screwdriver is provided with a linking means for linking the lever body and the driving device so that the screw or nail can be ejected from the driving device by operating the lever body.

[0008] the linking means includes a cable body and a movable piece supported by the holder and capable of being hooked onto a trigger provided on the driving device so as to eject the screw or nail from the driving device by a pulling operation, one end of the cable body is connected to the lever body so that the cable body is moved by operating the lever body, and the other end of the cable body is connected to the movable piece, In one aspect of the present invention, the movable piece is moved by the movement of the cable body through the operation of the lever body, and the trigger of the driving device is pulled.

[0009] In addition, one aspect of the present invention is to construct the support body from a lower support body and an upper support body combined with a horizontal axis provided above the position where the operating body is provided, and to configure the support body so as to be foldable at the horizontal axis position.

[0010] In one embodiment of the present invention, an auxiliary support is provided at the middle portion of the upper portion of the support, one end of which is combined with a horizontal axis.

[0011] In one aspect of the present invention, the seat body comprises a base supporting the lower end of the support column and legs protruding radially from the base and equipped with casters at the protruding ends, and three of the legs are provided with a gap between adjacent legs in the direction around the support column. In this case, in one aspect of the present invention, at least one of the three legs is combined with the base so as to be rotatable about a horizontal axis. In this case, in one aspect of the present invention, the protruding dimension of two of the three legs from the base is smaller than the protruding dimension of the remaining legs from the base. Effect of the Invention

[0012] According to this invention, the mirror body supported by the operating body and the lever body enable the driving device to be supported near the ceiling so that an operator can use the driving device to screw or nail into a specified position without having to look up at the ceiling. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a perspective view of a stand according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a side view of the stand. [Diagram 3] FIG. 3 is a side configuration diagram of the stand. [Figure 4]FIG. 4 is a perspective view of the stand in a folded state, with the cable body not shown. [Diagram 5] FIG. 5 is a cross-sectional view of the main part of the lower part of the stand. [Figure 6] FIG. 6 is a cross-sectional view of the main part of the upper part of the stand. [Figure 7] FIG. 7 is a cross-sectional view of the main part of the upper part of the stand. [Figure 8] FIG. 8 is a cross-sectional view of the combination of the lower and upper support columns of the stand. [Figure 9] FIG. 9 is a cross-sectional view of the combination of the lower and upper support columns of the stand. [Figure 10] FIG. 10 is a side view of the stand at which the holder for the driving device is installed. [Figure 11] FIG. 11 is a side view of the stand at which the holder for the driving device is installed. [Figure 12] FIG. 12 is a cross-sectional view of the main part of the lower part of the stand. [Figure 13] FIG. 13 is a cross-sectional view of the essential parts of the operating body of the stand at an installation position. [Figure 14] FIG. 14 is a perspective view showing the state in which the upper part of the support column constituting the stand is extended out to the side and the upper part of this support column is supported by an auxiliary support column, and the cable body is omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] A typical embodiment of the present invention will be described below with reference to Figures 1 to 14. A stand 1 for a screw driving device according to this embodiment is capable of supporting a driving device N near a ceiling so that when a ceiling board P (see Figure 3) is screwed or nailed to a ceiling substrate of a building from below using the driving device N, a worker such as a carpenter can screw or nail the driving device N into a predetermined position without looking up at the ceiling.

[0015] Such a stand 1 is equipped with a trigger Na at the upper end 2a of the support body 2 which constitutes it and which will be described later, and is equipped with a holder 3 which will be described later for a known driving device N (screw driver, nail driver) which ejects a screw or nail from the ejection portion Nb by pulling the trigger Na. Moreover, the stand 1 is provided with a base body 4 (to be described later) at a lower end portion 2b of a supporting column body 2 (to be described later) constituting the stand 1. In addition, the stand 1 is provided with an operating body 5 (described later) in the middle of the support body 2 (described later) that constitutes the stand 1, and is also provided with a mirror body 6 (described later) that can reflect the location where the screw or nail is to be driven in, and a lever body 7 (described later) that can be linked to a trigger Na of the driving device N.

[0016] As a result, as shown in Fig. 3, the driving device N can be positioned near the ceiling using the stand 1. Then, directly below the driving device N positioned in this way, the location where the screw or nail is to be driven can be confirmed without looking up at the ceiling, typically by looking down at the mirror surface of a mirror body 6 supported by an operating body 5 described later, in a posture with less stress. Then, directly below the driving device N, the trigger Na of the driving device N can be indirectly operated to drive the screw or nail into the location. After the screw or nail has been driven into one of the locations, typically the stand 1 can be moved horizontally using the operating body 5, making it possible to drive the screw or nail into the next location. Furthermore, until the driving of the screws or nails into one ceiling board P is completed, the ceiling board P will be supported using a ceiling board lifter (not shown) or by another worker standing on a stepladder.

[0017] The stand 1 includes a support body 2, a holder body 3, a base body 4, an operating body 5, a cable body 8, and an auxiliary support body 9.

[0018] (Strut body 2) The support body 2 constitutes the base of the stand 1. The holder 3 is provided at the upper end 2a of the support body 2, the base 4 is provided at the lower end 2b of the support body 2, and the operating body 5 is provided at the middle portion, which is located midway in the vertical direction of the support body 2. The base 4 keeps the support body 2 upright with its central axis x aligned vertically (Figure 1). In addition, in this embodiment, the support body 2 is composed of a lower support portion 2d and an upper support portion 2e that are combined with a horizontal axis 2c that is provided above the position where the operating body 5 is provided, and as shown in Figure 4, the support body 2 is configured to be foldable at the horizontal axis 2c position.

[0019] In the illustrated example, both the lower support column 2d and the upper support column 2e are mainly formed of a pipe having a circular horizontal cross section.

[0020] In the illustrated example, the lower part of the support column 2d is further composed of an outer cylinder 2f and an inner cylinder 2g. A base body 4 is attached to the lower end of the outer cylinder 2f (FIG. 5). The inner cylinder 2g has a part that protrudes upward from the upper end of the outer cylinder 2f and a part that is housed within the outer cylinder 2f, and is supported by the outer cylinder 2f so as to be movable up and down.

[0021] In the illustrated example, specifically, the outer cylinder 2f and the inner cylinder 2g are assembled by fitting the retaining portion 2i provided on the inner cylinder 2g into a vertically long split groove 2h formed in the vertical middle position of the outer cylinder 2f, so that the inner cylinder 2g can move up and down within the range of the length of the split groove 2h.

[0022] In the illustrated example, a gas spring 10 is housed inside the support body 2 (FIG. 5). Specifically, the gas spring 10 is located at the center of the support body 2, the inner cylinder 2g is located outside the gas spring 10, and the outer cylinder 2f is located outside the inner cylinder 2g. The gas spring 10 has a cylinder 10a that is fixed at the bottom to the bottom end of the outer cylinder 2f with a fixing bolt 10c, and the upper end of the plunger rod 10b is fixed to the inner cylinder 2g with a fixing bolt 10d. A bearing 10e is fitted to the fixing bolt 10d, and the bearing is positioned in the split groove 2h (see FIG. 4). That is, in the illustrated example, the fixing bolt 10d constitutes the retaining portion 2i.

[0023] The gas spring 10 acts to apply an upward biasing force to the inner cylinder 2g. An index plunger 11 is provided at the upper end of the outer cylinder 2f. A pin (not shown) of the index plunger 11 located inside the outer cylinder 2f is adapted to enter and engage with an engagement hole (not shown) of the inner cylinder 2g when the inner cylinder 2g is fully housed inside the outer cylinder 2f (see FIG. 4). When the index plunger 11 is pulled with the inner cylinder 2g in the housed position, the pin comes out of the engagement hole, and the gas spring 10 causes the inner cylinder 2g to rise up to a position where the retaining portion 2i is located at the top end of the split groove 2h, thereby increasing the vertical dimension of the support body 2.

[0024] In the illustrated example, the upper part of the support column 2e is also formed by combining an outer cylinder 2j and an inner cylinder 2k (FIG. 6). A holder 3 is attached to the upper end of the inner cylinder 2k. The inner cylinder 2k has a part that protrudes from the upper end of the outer cylinder 2j and a part that is housed within the outer cylinder 2j, and is supported by the outer cylinder 2j so as to be movable up and down. In the illustrated example, a vertically extending split groove 2m is formed at the upper end of the outer tube 2j, and a clamping means 12 is provided for clamping the area where the split groove 2m is formed from the outside. A bicycle seat clamp can typically be used as the clamping means 12. In the illustrated example, the clamping means 12 presses the inner surface of the outer tube 2j against the outer surface of the inner tube 2m in the area where the split groove 2m is formed, thereby restricting the movement of the inner tube 2m. The press-fitting is released by loosening the clamping means 12, and the inner tube 2k is moved by this operation to adjust the protruding dimension of the inner tube 2k from the outer tube 2m, and then the outer tube 2m is re-tightened by the clamping means to hold the inner tube 2k in the adjusted position.

[0025] In the illustrated example, the upper end of an inner cylinder 2g of the lower support pillar portion 2d and the lower end of an outer cylinder 2j of the upper support pillar portion 2e are combined with each other by a horizontal shaft 2c. In the illustrated example, the lower pillar part 2d and the upper pillar part 2e are combined by a hinge member 13 that rotatably connects a first hinge element 13a fixed to the upper end of the inner tube 2g of the lower pillar part 2d and a second hinge element 13b fixed to the lower end of the outer tube 2j of the upper pillar part 2e by the horizontal axis 2c on the side of the central axis x of the pillar body 2 (Figure 8). In the illustrated example, the hinge member 13 is provided with a latch means 13c on the side opposite to the side on which the horizontal shaft 2c is provided. In the illustrated example, the latch means 13c is composed of an engaged portion 13d formed on the second hinge element 13b and a toggle latch 13e provided on the first hinge element 13a. As shown in Figure 9, from the state in which the support body 2 is folded in half at the horizontal axis 2c position, the upper support column 2e is rotated about the horizontal axis 2c toward the set position (Figure 8) in which the central axis of the upper support column 2e and the central axis of the lower support column 2d are both positioned on the same imaginary straight line, and then the expanded state of the support column body 2 (Figure 1) is maintained by engaging the engaging portion 13f formed on the free end of the toggle latch 13e with the engaged portion 13d formed on the second hinge element 13b.

[0026] The support structure 2 allows the stand 1 to be folded to approximately half its total length when transporting or storing (FIG. 4). In addition, when the stand 1 is in use, the index plunger 11 at the lower part of the pillar 2d is pulled to raise the inner tube 2g at the lower part of the pillar 2d by the action of the gas spring 10, thereby lifting the driving device N to a position where its ejection part Nb abuts against the ceiling board P. The overall length of the support body 2 can be adjusted by adjusting the projection dimension of the inner cylinder 2k from the outer cylinder 2j of the support upper portion 2e.

[0027] (Holding body 3) The holder 3 is provided on the upper end 2a of the support body 2 and holds the driving device N in a removably manner.

[0028] In the illustrated example, the holder 3 includes a base 3a, a band 3b, and a buckle 3c. The holder 3 is fixed to the upper end of the inner cylinder 2k of the upper column 2e by means of a base 3a. A seat 3d for a part of the driving device N is provided on the side of the base 3a opposite to the side fixed to the upper column 2e.

[0029] In the illustrated example, the seat portion 3d side is rotatably assembled in the direction indicated by the symbol r in FIG. 3 to the fixed side of the base 3a relative to the upper part of the support pillar 2e, so that the orientation of the driving device N can be adjusted after being held as described below.

[0030] The band 3b is a flexible band-like body with one end fixed to the base 3a and the other end free. On one surface of the band 3b, a plurality of engagement claws are formed in multiple stages in the longitudinal direction of the band 3b with a gap between adjacent engagement claws in the longitudinal direction of the band 3b.

[0031] The buckle 3c is provided on the side of the base 3a opposite to the side where the fixed end of the band 3b is fixed. The buckle 3c has a free end 3h and a base 3g, and is assembled to the base 3a by an axis 3i (FIG. 10). The buckle 3c is assembled to the base 3a so as to be rotatable (rotatable in the direction indicated by the symbol y in FIG. 10) between a lying position in which a virtual straight line connecting the base 3g and the free end 3h is substantially parallel to the central axis x of the support body 2 and an upright position. In the upright position of the buckle 3c, the band 3b can pass between the base 3g of the buckle 3c and the base 3a. After the buckle 3c is raised and the band 3b is inserted between the base 3g and the base 3a to a desired position, the buckle 3c is lowered so that an engagement portion (not shown) formed on the buckle 3c side can be engaged with any one of a plurality of engagement claws 3f formed on the band 3b. This allows a space S to be formed between the band 3b and the seat portion 3d of the base 3a for clamping and holding a part of the driving device N (the grip portion of the driving device N in the illustrated example). In the illustrated example, the holder 3 is capable of holding the driving device N in a position in which the ceiling board P is positioned directly above the injection section Nb.

[0032] (Seating 4) A base body 4 is provided at the lower end portion 2b of the support body 2 to keep the support body 2 upright.

[0033] In this embodiment, the base body 4 comprises a base 4a that supports the lower end portion 2b of the support body 2, in the illustrated example, the lower end of the outer tube 2f of the lower portion 2d of the support body 2, and a leg body 4b that protrudes radially from the base 4a and has a caster 4c at the protruding end. In the illustrated example, three legs 4b are provided with a gap between adjacent legs 4b in the direction around the support column 2.

[0034] The support body 2 is stably kept upright by the base body 4. In addition, by utilizing the casters 4c, the stand 1 can be easily moved in the horizontal direction while the support body 2 is kept upright.

[0035] In the illustrated example, one of the three legs 4b is assembled to the base with a horizontal shaft 4d. In the illustrated example, one of the three legs 4b is assembled to the base 4a with the end opposite to its protruding end rotatably arranged on the horizontal shaft 4d, and one of the three legs 4b can rotate about the horizontal shaft 4d between an unfolded position (FIG. 5) in which its leg shaft is horizontally arranged and a folded position (FIG. 12) in which its protruding end faces upward and its leg shaft is vertically arranged. The unfolded position and the folded position of the leg 4b are releasably maintained by the index plunger 14, which is indicated by the reference numeral 14 in the figure, and a hole with which the pin 14a of the index plunger is engaged, which is indicated by the reference numeral 4e. In the illustrated example, the index plunger 14 is provided on the base 4a side of the seat body 4, and the hole 4e is provided on the leg 4b side.

[0036] Although not shown in the drawings, two or all of the three legs 4b may be combined with the base 4a via a horizontal axis 4d. This allows the base 4 to be placed as little as possible in the way when the stand 1 is transported or stored, as shown in FIG.

[0037] In addition, in this embodiment, the protruding dimension of two of the three leg bodies 4b from the base portion 4a is smaller than the protruding dimension of the remaining leg body 4b from the base portion 4a. If the stand 1 is arranged so that the protruding ends of the two legs 4b, which have a small protruding dimension from the base 4a, face the wall, the support column 2 can be brought as close as possible to the wall of the building. Therefore, by configuring it in this way, it becomes easier to bring the ejection part Nb of the driving device N supported by the stand 1 close to the location of the ceiling board P that is close to the wall, making it easier to drive screws or nails into such locations.

[0038] (Operation body 5) The operating body 5 is provided in the middle of the support body 2 and supports a mirror body 6 and a lever body 7 . It is preferable that the operating body 5 is provided on the support body 2 so that it is located at a height in the range of 75 cm to 95 cm when the stand 1 is in use.

[0039] In the illustrated example, the operating body 5 is fixed to the inner cylinder 2g of the lower support portion 2d of the support body 2 at a position between the horizontal shaft 2c and the upper end of the outer cylinder 2f. The operating body 5 is rod-shaped and has a configuration in which left and right grips 5a are connected by a connecting part 5b. The middle position in the length direction of the connecting part 5b is fixed to the above-mentioned position of the support body 2 via a fixing member 5c, and the central axis of the connecting part 5b of the operating body 5 is horizontally arranged and perpendicular to the central axis x of the support body 2 which is vertically arranged. The left grip portion 5a protrudes from the left end of the connecting portion 5b in a direction intersecting the longitudinal direction of the connecting portion 5b, and the right grip portion 5a protrudes from the right end of the connecting portion 5b in the same direction as the left grip portion 5a.

[0040] The mirror body 6 is supported by the operating body 5 so as to be able to view the location in the ceiling board P where the screw or nail is to be driven. That is, the mirror body 6 is supported by the operating body 5 in such a manner that the mirror surface can be directed upward. In the illustrated example, when the mirror surface of the mirror body 6 is substantially horizontal, the mirror body 6 reflects a location in the ceiling board P where a screw or nail is to be driven, in other words, a location near the ejection part Nb of the driving device N held by the holder 3. In the figure, symbol 6a denotes a holding frame of the body 6, and symbol 6b denotes an arm having one end fixed to the holding frame 6a and the other end combined with the connecting part 5b between one of the left or right grip parts 5a and a position approximately midway along the length of the connecting part 5b. The other end of the arm 6b is fitted to the connecting part 5b so as to be rotatable around the connecting part 5b, and the fitting state between the other end of the arm 6b and the connecting part 5b is loosened by operating a lever indicated by the reference symbol 6c in the figure, thereby enabling the above-mentioned rotation operation to be performed. This makes it possible to adjust the angle of the microscope body 6.

[0041] In the illustrated example, the lever body 7 is provided on the grip portion 5a on the side opposite to the support side of the arm 6b. In the figure, reference symbol 7a denotes a fixing member for fixing the lever body 7 to the grip portion 5a. One end of the lever body 7 is rotatably supported by this fixing member 7a, and in the illustrated example, the lever body 7 can be operated by pulling the other end, which is the free end, upward while gripping the grip portion 5a. One end of a cable 8 is secured to the other end of the lever 7. In the illustrated example, a bicycle brake lever is used as the lever 7.

[0042] (Cable body 8) A cable body 8 connects the lever body 7 and the driving device N so that the screw or nail can be ejected from the driving device N by operating the lever body 7.

[0043] One end of the cable body 8 is connected to the lever body 7 so that the cable body 8 is moved downward by operating the lever body 7. The other end 8b of the cable body 8 is supported by the holding body 3 and is connected to a linking member 15 having a movable piece 15b that can be hooked onto a trigger Na provided on the driving device N so as to eject the screw or nail from the driving device N by a pulling operation. The movement of the cable body 8 by operating the lever body 7 moves the movable piece 15b, and the trigger Na of the driving device N is pulled. In the illustrated example, the cable body 8 is housed in a tube 8a that houses it movably (FIG. 11).

[0044] One end of the cable body 8 is secured to the lever body 7 in such a manner that when the lever body 7 is pulled, the cable body 8 is pulled downward. The other end 8b of the cable body 8 is connected to a linking member 15 supported by the holder 3. The linking member 15 has a base 15a supported by the holder 3 and a movable piece 15b rotatably supported on this base 15a by an axis 15c, and in the illustrated example, the free end of this movable piece 15b can be hooked from above onto a trigger Na of a driving device N supported by the holder 3. When the lever body 7 is pulled, the movable piece 15b rotates and the trigger Na of the driving device N supported by the stand 1 as described above is pulled (pushed downward), making it possible to drive a screw or nail into the ceiling panel.

[0045] When the pulling operation of the lever body 7 is stopped, the movable piece 15b returns to its initial position before the rotation due to the biasing force of a biasing means (not shown), the cable body 8 supported by the tube 8a also returns to the position before it was pulled as described above, and the lever body 7 also returns to the position before the operation.

[0046] In the illustrated example, a bicycle caliper brake is used as the linking member 15, and the movable piece 15b utilizes one of a pair of movable parts of the caliper brake. That is, in the illustrated example, the cable body 8 and the linking member 15 constitute a linking means.

[0047] (Auxiliary pillar 9) The auxiliary support 9 is combined with the middle part of the support upper part 2e by means of a horizontal shaft 9a at one end.

[0048] In the illustrated example, one end of the auxiliary support 9 is fixed to the outer cylinder 2j of the support upper part 2e of the support body 2 at a position slightly below the clamping means 12. In the figure, reference symbol 9b denotes a fixing member for fixing one end of the auxiliary column 9 to the column body 2. A bearing portion 9d that protrudes to the side is formed on a base 9c of the fixing member 9b that is fixed to the column body 2. One end of the auxiliary column 9 is rotatably assembled to the column body 2 by using this bearing portion 9d with a horizontal shaft 9a. In other words, the auxiliary support 9 is rotatably assembled to the support body 2 between a non-deployed state (Figure 6) in which its central axis z is positioned parallel to the central axis x of the support body 2, and a deployed state (Figure 7) in which its central axis z is positioned so as to intersect the central axis x of the support body 2. In the illustrated example, the auxiliary pillar 9 is set to a length such that, in the non-deployed state, the other end of the auxiliary pillar 9 is positioned near the top of the hinge member 13 that connects the upper pillar 2e and the lower pillar 2d (Figure 1).

[0049] When the screws or nails loaded in the driving device N need to be replenished or when the driving device N needs to be replaced, the replenishment or replacement can be easily and smoothly performed on the floor side of the construction site by rotating the upper column 2e of the column body 2 around the horizontal axis 2c of the hinge member 13 and moving the upper end 2a of the column body 2, i.e., the holder 3, to the floor side. At this time, by putting the auxiliary column 9 in the expanded state, it becomes possible to support the upper column 2e side on the floor as shown in Fig. 14 so that the driving device N supported by the rotated upper column 2e as described above does not come into contact with the floor.

[0050] In the illustrated example, a protrusion 9e is provided on the bearing portion 9d of the fixing member 9b, which engages with the outer surface of the auxiliary column 9 to maintain the position of the auxiliary column 9 when the auxiliary column 9 is in the undeployed position and when the auxiliary column 9 is in the deployed position (FIGS. 6 and 7). In the deployed position, the central axis x of the auxiliary column 9 is perpendicular to the floor surface (FIG. 14). In the figure, reference symbol 9f denotes a ferrule portion that is provided at the other end of the auxiliary support 9 and comes into contact with the floor surface in the unfolded state.

[0051] Of course, the present invention is not limited to the above-described embodiments, but includes all embodiments that can achieve the object of the present invention. [Explanation of symbols]

[0052] P Ceiling Board N Driving device Na trigger Nb injection part x center axis S space 1 Stand 2 Post body 2a Upper end 2b Bottom end 2c horizontal axis 2d Lower part of support 2e Upper part of support 2f Outer cylinder 2g inner cylinder 2h Split groove 2i Stopper 2j Outer cylinder 2k inner cylinder 2m split groove 3 Holding body 3a Base 3b band 3c Buckle 3d seat 3e free end 3f Engagement claw 3g base 3h free end 3i axis 4. Seat 4a base 4b Leg body 4c Caster 4d horizontal axis 4e hole 5. Control unit 5a Grip 5b Connecting part 5c Fixing member 6 Mirror body 6a Retaining frame 6b Arm 6c Lever 7 Lever body 7a Fixing member 8 Cable body 8a tube 8b Other end 9 Auxiliary support 9a horizontal axis 9b Fixing member 9c Bass 9d Bearing part 9e protrusion 9f Stone tip 10 Gas spring 10a Cylinder 10b Plunger rod 10c, 10d Fixing bolts 10e bearing 11 Index Plunger 12 Clamping means 13 Hinge member 13a First hinge element 13b Second hinge element 13c Latching means 13d Engaged part 13e Toggle latch 13f Engagement part 14 Index Plunger 14a pin 15 Connecting parts 15a Base 15b Movable piece 15c axis

Claims

1. A stand for supporting a screw or nail driving device when fastening a ceiling board of a building with a screw or nail, A support body; A holder for the driving device provided at an upper end of the support body and removably holding the driving device; A base provided at a lower end of the support body to keep the support body upright; An operating body provided at a middle portion of the support body; A mirror body supported on the operation body so as to be able to reflect the location where the screw or nail is to be driven; A lever body supported by the operating body; The stand for a screw or nail driving device is provided with a linking means for linking the lever body with the driving device so that the screw or nail can be ejected from the driving device by operating the lever body.

2. the linking means includes a cable body and a movable piece supported by the holder and capable of being hooked onto a trigger provided on the driving device so as to eject the screw or nail from the driving device by a pulling operation, one end of the cable body is connected to the lever body so that the cable body is moved by operating the lever body, and the other end of the cable body is connected to the movable piece, 2. The stand for a device for driving screws or the like according to claim 1, wherein the movable piece is moved by the movement of the cable body due to the operation of the lever body, and the trigger of the driving device is pulled.

3. 2. A stand for a screw driving device as described in claim 1, wherein the support body is composed of a lower support body and an upper support body combined with a horizontal axis provided above the position where the operating body is provided, and the support body is configured to be foldable at the horizontal axis position.

4. 4. A stand for a device for driving screws or the like according to claim 3, further comprising an auxiliary support pole, one end of which is combined with a horizontal shaft at the middle portion of the upper portion of said support pole.

5. 2. A stand for a device for driving screws, etc., as described in claim 1, wherein the base body comprises a base supporting the lower end of the support body, and legs protruding radially from the base and equipped with casters at the protruding ends, and three of the legs are provided with a gap between adjacent legs in the direction circumferentially around the support body.

6. 6. A stand for a device for driving screws or the like according to claim 5, wherein at least one of the three legs is assembled to be rotatable about a horizontal axis relative to the base.

7. 6. A stand for a screw driving device as claimed in claim 5, wherein the protruding dimension of two of the three legs from the base is smaller than the protruding dimension of the remaining legs from the base.