JP2001081959A - Handgrip bar - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate mounting and demounting, to easily change the position of installation and to prevent the apparent deterioration of a section as the position of installation. SOLUTION: The handgrip bar is used for supporting a person in an object (the top plate 12 and tread sash bars 11a of a portable workbench 1) having fixed height on which the person ascends and descends, and detachable installed brackets 4 and rod-shaped members 5 mounted on the installing sections of the brackets 4 and arranged at positions, where the person ascending and descending on the tread sash bars 11a and a person on the top plate 12 are helped, such as positions, where the person can close its fist, and the positions of the supporting of bodies are set up to columnar bodies (the supports 11 of the portable workbench 1) positioned near the object.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cue bar which is provided for an object having a predetermined height on which a person can go up and down to ensure the safety of the person and improve the workability. is there.

[0002]

2. Description of the Related Art As a cue rod of this kind, for example, FIG.
1 is installed on a portable workbench 1 shown in FIG.
The portable workbench 1 has four columns 11 and these columns 1
1 and a top plate (also referred to as a work floor) 12 set to a predetermined height. Two pillars 11 are provided at each end of the top plate 12 in the longitudinal direction, and two pillars 11 at each end are provided with a plurality of steps 11a by connecting these pillars 11 to each other. Is provided. Also, the support 11
Can be folded on the back side of the top plate 12,
The top plate 12 is also hinged by a hinge 12a provided at the center thereof.
It can be bent upward.

[0003] As shown in FIG.
2 has a bracket 21 fixed to the side edge portion by bolts 2 a and nuts 2 b, and a cylindrical gripping bar 22 attached to the bracket 21 and extending above the top plate 12. In addition, the bracket 21 is provided at each end of the top plate 12 in the longitudinal direction, and on the left side edge portion ascending the step rail 11a. That is, when viewed in FIG. 7, the right cue bar 2 is provided on the front side edge of the top plate 12, and the left cue bar 2 is provided on the side edge on the other side of the top plate 12. Is provided.

[0004] As shown in FIGS. 8 and 9, the bracket 21 includes a main body 21 a fixed to a side edge of the top plate 12,
A rectangular cylindrical guide tube 21b which is integrally connected to the main body 21a by welding or the like and guides the grip bar 22 above the top plate 12, and a support plate 21c which extends integrally upward from the guide tube 21b; It has. The support plate 21c and the main body 21a support the screw rod 23 horizontally.

The gripping rod 22 has a long hole 22a extending in the axial direction at the base end thereof.
The threaded rod 23 is inserted through the hole. That is, the grip bar 22 is connected to the bracket 21 so as to be rotatable about the screw bar 23 and to be movable in the axial direction along the elongated hole 22a. Further, the handle bar 22 is provided with another screw bar 24 that penetrates the upper part of the elongated hole 22a. Further, a tension spring 25 that exerts a force to draw the screw rods 23 and 24 toward each other is hung between the screw rods 23 and 24.

The tension spring 25 pulls the gripping rod 22 downward with respect to the screw rod 23 fixed to the bracket 21, so that the upper end of the elongated hole 22 a of the gripping rod 22 is constantly pressed against the screw rod 23. Is to be maintained.

Therefore, when the grip bar 22 is fitted into the guide tube 21b of the bracket 21, the screw bar 23 comes into contact with the upper end of the elongated hole 22a, and the grip bar 22 projects upward from the top plate 12. become. Accordingly, the worker on the top plate 12 can work safely and improve work efficiency by holding the gripping bar 22 or supporting the body. When the grip bar 22 is moved upward (in the direction of the arrow U in FIG. 8) and the lower end of the long hole 22a is brought into contact with the screw bar 23, the lower end of the grip bar 22 comes out above the guide cylinder 21b. By rotating the grip bar 22 around the screw bar 23 in this state, the grip bar 22 can be tilted along the side edge of the top plate 12 as shown in FIG.

[0008]

However, in the above-mentioned conventional cue rod, since the bracket 21 is fixed to the top plate 12 with the bolts 2a and the nuts 2b, it can be easily attached to and detached from the portable work table 1. There is a drawback that you can not.

Further, in the above-described conventional example, the cue rod is arranged on the left side edge portion when viewed from each end of the top plate 12, but the handed person or the work on the top plate 12 is shown. In some cases, it is necessary to change the cue bar to the right side edge of the top plate 12 or another position. However, in order to change the position of the cue bar, for example, to the right side edge, a new through hole for the bolt 2a must be formed in the right side edge. Therefore, there has been a problem that changing the position of the cue bar is a more difficult operation than the above-mentioned attachment and detachment. Moreover, after removing the cue rod, the insertion hole of the bolt 2a is exposed on the top plate 12, so that apparently,
There is a problem of giving a bad impression.

The present invention has been made in view of the above circumstances, is easy to attach and detach, and can easily change the installation position. It is an object of the present invention to provide a cue stick that does not impair the appearance.

[0011]

In order to achieve the above object, the present invention provides a cue bar for supporting a person on an object having a predetermined height on which a person goes up and down. A bracket that is detachably installed on a columnar body located in the vicinity, and a rod-shaped member that is attached to an attachment portion of the bracket and that is arranged at a position that assists a person, It is formed so as to surround the periphery of the columnar body by a predetermined amount, and is provided with a screw rod connecting one end and the other end thereof. The one end and the other end are formed with the screw rod. The parts are fixed to the column by approaching each other (claim 1).

[0012] In the present invention, the bracket is adapted to be fitted to a columnar body through an opening between one end and the other end, and the screw rod is provided on one side of the bracket. By rotating around the end of the fulcrum,
The opening is opened and closed,
Preferably (claim 2).

In the present invention, it is preferable that the mounting portion of the bracket is formed by a groove that partially fits with the outer peripheral surface of the rod-shaped member and guides the rod-shaped member in a predetermined direction ( Claim 3).

Further, in the present invention, it is preferable that the rod-shaped member is attached to the bracket by a fastening member that presses the rod-shaped member against an attachment portion.

According to the cue rod of the present invention configured as described above, after the bracket is fitted around the columnar body, one end and the other end of the bracket are brought closer to each other with the screw rod. By tightening the bracket, the bracket can be fixed to the columnar body. In addition, the bracket can be removed from the columnar body by releasing the tightening by the screw bar. Therefore, it can be easily attached to and detached from the columnar body. In addition, the threaded rod allows one end and the other end of the bracket to approach each other and does not need to be configured to penetrate the columnar body, so that the columnar body can be mounted without any processing. be able to. That is, the installation position can be easily changed, and it can be easily retrofitted to any necessary position on the columnar body. Further, since there is no need to machine a hole such as a threaded hole in the columnar body, there is no need to remain at the position after removing the bracket after any machining. Accordingly, the appearance of the portion that has been the installation position does not deteriorate due to the movement. (Claim 1).

Further, the bracket is adapted to be fitted to the columnar body through an opening between one end and the other end, and the threaded rod is used to connect one end of the bracket to the other end. The opening can be opened and closed by rotating about the fulcrum, so that the bracket can be easily attached from the side of the columnar body. In other words, the column can be easily attached to any column as long as the column has a length to which the bracket can be attached.

Further, since the mounting portion of the bracket is formed by a groove that partially fits with the outer peripheral surface of the rod-shaped member and guides the rod-shaped member in a predetermined direction, the rod-shaped member can be securely fixed in a predetermined direction. And the rod-shaped member can be easily attached from the side of the bracket (claim 3).

Further, since the rod-shaped member is attached to the bracket by being pressed against the mounting portion by the fastening member, the rod-shaped member can be easily attached to the bracket by applying a pressing force by the fastening member. It can be fixed (claim 4).

[0019]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a cue stick according to an embodiment of the present invention.
However, components common to the components shown in the conventional example are denoted by the same reference numerals, and description thereof will be simplified.

FIG. 1 is a front view (a) and a side view (b) showing a cue bar according to the present invention, FIG. 2 is a bottom view of the cue bar (a view taken in the direction of the arrow II in FIG. 1), and FIG. FIGS. 4 to 6 are views showing a bracket of a rod, and FIGS. 4 to 6 are views showing a portable work table having a cue bar.

The cue bar 3 is, as shown in FIGS.
An object of a predetermined height for a person to go up and down (portable work platform 1
Of the top plate 12 and the crosspiece 11a), which are to support a person and are detachably mounted on a columnar body (the column 11 of the portable workbench 1) located near the object. 4 and a position that is attached to the mounting portion 46 of the bracket 4 and that assists a person who goes up and down the stair 11a or a person who is on the top plate 12, for example, a position or a position where the person can hold the hand. And a bar-shaped member 5 arranged at a supporting position.

The bracket 4 is formed so as to surround the column 11 by a predetermined amount, and has a screw rod 6 connecting one end 4a and the other end 4b. The one end 4a and the other end 4 are
b is fixed to the column 11 by approaching each other.

The bracket 4 is adapted to be fitted to the column 11 through an opening 4c between one end 4a and the other end 4b. The opening 4c is opened or closed by pivoting around one end 4a of the opening.

Further, the mounting portion 46 of the bracket 4 is constituted by a groove having an arcuate cross section for partially fitting the outer peripheral surface of the rod-shaped member 5 and guiding the rod-shaped member 5 in a predetermined direction. The rod-shaped member 5 is attached to the mounting portion 45.
The bracket 4 is fixed to the bracket 4 by a fastening member 7 pressed against the bracket 4.

Hereinafter, the above configuration will be described in more detail. That is, as shown in FIGS. 2 and 3, the bracket 4 is integrally formed by, for example, an aluminum casting, and has one side wall 41 and the other side wall 42.
And the intermediate side wall 43, the U-shaped inner surface 4 d of which is fitted to the outer surface of the column 11.

The one end 4a is located on one side wall 41 side of the bracket 4, and a rib 44 is formed at the end of the side wall 41. This rib 44
Curved to the opposite side of the opening 4c, and one side wall 41
It is formed so as to protrude in a direction perpendicular to the direction. An elongated hole 44a is formed at one end 4a at a portion extending over the rib 44 and the one side wall 41.

The elongated hole 44a is located at the center of the bracket 4 in the axial direction (the direction perpendicular to the plane of FIG. 2), and is formed to be long in the direction perpendicular to the axial direction. And the long hole 4
4a is adapted to fit the base end of the threaded rod 6. That is, the portion of the elongated hole 44a on the one side wall portion 41 side is set to have a length that accommodates the base end portion of the screw rod 6 extending in a direction orthogonal to the inner surface 4d. The portion of the elongated hole 44a on the side of the rib 44 is set to have a length that accommodates the base end of the screw rod 6 after being rotated so as to be parallel to the inner surface 4d. The inner end 44b (see FIG. 3) and the outer end 44c of the elongated hole 44a are formed in a semicircle with a radius slightly larger than the radius of the base end of the screw rod 6.

The other end 4b is located on the side of the other side wall 42 of the bracket 4, and a protrusion 45 is formed at the end of the side wall 42. This projection 45
Is curved to the opposite side to the opening 4c, and the other side wall 42
From the outside. However, the protrusion 45 is smaller than the protrusion amount of the rib 44. Also,
The other end 4b is formed with a U-shaped guide groove 45a that opens toward the protrusion 45 and extends toward the other end 4b.

The guide groove 45a is located at the center of the bracket 4 in the axial direction, and is formed to be long in a direction perpendicular to the axial direction. Further, the guide groove 45a is set to have a length that accommodates the distal end of the threaded rod 6 extending in a direction perpendicular to the inner surface 4d. In addition, the bottom 45b of the guide groove 45a
Is formed in a semicircular shape with a radius slightly larger than the radius of the tip of the threaded rod 6.

The inner surface 4d of the one and the other side wall portions 41 and 42 has a position near the inner end 44b of the elongated hole 44a,
And a column 11 near the bottom 45b of the guide groove 45a.
A retaining protrusion 4e is formed to prevent the protrusion from coming off. Each retaining projection 4e protrudes from the opposing inner surface 4d, so that the opening 4c is narrowed. However, in a free state in which one and the other side walls 41, 42 are not restrained by the screw rod 6, Are kept at an interval allowing passage of the support 11.

Further, a projection 4f is formed on the inner surface 4d of the intermediate wall portion 43 for stabilizing the orientation with respect to the column 11.

As shown in FIG. 2, the screw rod 6 is formed by forming a male screw on the tip end of a round bar.
a fits into the guide groove 45a of the bracket. The proximal end of the threaded rod 6 fits into the long hole 44a of the bracket 4, and a pin 61 is driven into a portion protruding outward from the long hole 44a.
This pin 61 is, as shown in FIG.
Is formed to be sufficiently longer than the width of the screw 4 to reliably prevent the screw rod 6 from coming out of the long hole 44a of the bracket 4 toward the opening 4c.

A wing nut 62 is screwed into the screw portion 6a of the screw rod 6. The wing nut 62 moves toward the pin 61 by rotating in the direction of tightening the screw, and deflects the one side wall 41 and the other side wall 42 in directions approaching each other.

As shown in FIGS. 1 and 2, the rod-shaped member 5 is formed integrally with an extruded member made of, for example, aluminum, and has a cylindrical section 51 having a circular cross section and a cylindrical section 51. And two reinforcing ribs 52 formed so as to extend in the axial direction along the inner surface of. Further, as shown in FIG. 2, a through hole 51 a through which a screw portion 71 of the fastening member 7 described later penetrates is formed at the base end of the rod-shaped member 5. The through hole 51 a is formed so as to penetrate a straight line connecting the center between the two reinforcing ribs 52 and the center of the cylindrical portion 51.

On the other hand, as shown in FIGS. 2 and 3, the mounting portion 45 is formed on an outer surface of a wall portion 41a in which one side wall portion 41 has a U-shaped cross section and protrudes one step higher. And is formed by a groove having an arc-shaped bottom surface which is fitted to the outer peripheral surface of the rod-shaped member 5. Then, the mounting portion 45
A screw hole 45a into which the screw portion 71 is screwed is formed at the center of the axial direction and the center of the circular arc direction. The screw hole 45a is formed to penetrate the wall 41a. The inside of the wall 41a is formed in a concave shape, and forms a space 41b between the support 41 and the wall 41a.

The fastening member 7 is integrally formed coaxially with a screw portion 71 and a knob 72 formed at one end of the screw portion 71. The knob 72 is formed by a cylindrical grip portion 72a having a diameter larger than that of the screw portion 71, and a taper portion 72b conically reduced in diameter from the grip portion 72a to the screw portion 71. A knurl or the like for preventing slip is formed on the outer peripheral surface of the grip portion 72a. Tapered part 72
In b, the rod-shaped member 5 is pressed and fixed to the mounting portion 45 by the small-diameter distal end portion contacting the outer peripheral surface of the rod-shaped member 5.

Further, a pin 73 is provided at the tip of the screw portion 71.
Is being driven in. The pin 73 is driven into the distal end of the threaded portion 71 in a state where the distal end of the threaded portion 71 protrudes toward the space 41b through the through hole 51a of the rod-shaped member 5 and the threaded hole 46a of the mounting portion 46. It is a thing. That is, even if the fastening member 7 is turned in the direction in which the grip portion 72 is loosened, the fastening member 7 does not fall off from the mounting portion 45 side.

In FIG. 1, reference numeral 53 denotes a rod-shaped member 5.
Are caps made of resin for closing each end of the bar-shaped member 5. A projection (not shown) is formed on the inner peripheral surface of the cap 53 so as to enter the hole 51b.

In order to attach the cue rod 3 constructed as described above to the support 11 of the portable worktable 1, first, the wing nut 62 is loosened, and the screw rod 6 is set with its base end as a fulcrum. 2, the screw rod 6 is moved to a position where it is substantially parallel to the inner surface 4d of the bracket 4, or to a position further rotated in the R direction. As a result, the opening 4c of the bracket 4 is completely opened, so that the bracket 4 is fitted on the outer surface of the support 11.

After that, the screw rod 6 is rotated so that the screw portion 6a
Into the guide groove 45a of the bracket 4. At this time, the base end of the screw rod 6 is brought into contact with the inner end 44b of the elongated hole 44a, and the screw part 6a is brought into contact with the bottom 45b of the guide groove 45a. Then, the wing nut 62 is tightened. Then, as the distance between the pin 61 and the wing nut 62 is reduced, the one side wall 41 and the other side wall 42 are bent in a direction approaching each other, and these side walls 41 and 42 are caused by the force of the screw to support the column 11. Is strongly pressed against the outer surface of the. That is, the bracket 4 is securely fixed to the column 11. At this time, each side wall 4
The retaining projection 4e formed on the inner surface 4d of
Since the bracket 4 acts so as to prevent the bracket 4 from coming off from the bracket 1, the bracket 4 can be more reliably fixed to the column 11.

It is needless to say that the screw portion 6a can be prevented from coming off from the guide groove 45a by the frictional force between the wing nut 62 and the other side wall portion 42.
The contact of the wing nut 62 with the projection 45 described above reliably prevents the screw 6a from coming off the guide groove 45a.

It should be noted that the rod-shaped member 5 is
It is preferable to keep it fixed to the mounting portion 46 of the bracket 4 from start to finish. However, if it is easier to attach the bracket 4 to the column 11 by setting the bar member 5 in the upside down direction with respect to the bracket 4, the fastening member 7 is loosened, and the bar member 5 is rotated by 180 degrees. It is fixed to the bracket 4 again by the fastening member 7. Also,
When it is easier to attach the bracket 4 to the column 11 by making the rod member 5 rotatable with respect to the bracket 4, the fastening member 7 is loosened so that the rod member 5 is rotatable with respect to the bracket 4. I just need.

On the other hand, in order to remove the cue bar 3 from the column 11, the wing nut 62 is loosened and the screw bar 6 is rotated in the direction R in FIG. Pull out the guide groove 45a. At this time, the opposing retaining protrusions 4e, 4e
Is widened, and the bracket 4 comes off the support 11. Accordingly, by pulling out the bracket 4 from the support 11, the cue bar 3 can be easily removed from the support 11.

Therefore, according to the cue rod 3, the support 1
1 can be easily attached and detached. Further, since there is no member configured to penetrate the support 11, there is no need to perform any processing on the other support 11 even when the mounting position of the support 11 is changed. Therefore, the installation position of the cue bar 3 can be easily changed at any position on the column 11, and it can be easily retrofitted to a required position. Further, since no support holes or the like are formed on the support 11, no processing marks remain on the support 11 after the cue bar 3 is removed. Therefore, it is possible to prevent the appearance of the part from which the cue bar 3 is removed from being deteriorated.

The bracket 4 is adapted to be fitted to the support post 11 through an opening 4c between one end 4a and the other end 4b, and the screw rod 6 has a base end. Since the opening 4c is opened and closed by rotating about the portion as a fulcrum, the cue bar 3 can be easily attached from the side of the support 11. Therefore, as long as a part of the support 11 has a length equal to or longer than the axial length of the bracket 4, the cue bar 3 can be easily attached to any support 11.

Further, since the mounting portion 46 of the bracket 4 is partially fitted to the outer peripheral surface of the rod-shaped member 5 and is constituted by a groove for guiding the rod-shaped member 5 in a predetermined direction, the rod-shaped member 5 is And the rod-shaped member 5 can be easily attached to the bracket 4.

Further, since the rod-shaped member 5 is fixed to the bracket 4 by being pressed against the mounting portion 46 by the fastening member 7, the direction of the fastening member 7 can be changed to 180 by just turning the fastening member 7. It can be easily changed in the degree direction. Further, by removing the pin 73, the bar-shaped member 5 can be easily removed. Further, the rod-shaped member 5 is connected to the bracket 4 by tightening the fastening member 7.
When the fixing member 7 is fixed, the small-diameter portion of the tapered portion 72b presses the outer peripheral surface of the rod-shaped member 5, so that the rotational resistance when the fastening member 7 is tightened is small.
Therefore, the bar-shaped member 5 can be securely fixed to the bracket 4 by tightening the fastening member 7 with a normal human force.

In the above embodiment, the column 11 is shown as the column 11 in the portable work table 1 and the example in which the cue bar 3 is fixed to the column 11 is shown. The cue bar 3 may be fixed to another pillar.

Although the rod-shaped member 5 has two reinforcing ribs 52 on the inner surface of the cylindrical portion 51, the rod-shaped member 5 is composed of only the cylindrical portion 51 without reinforcing ribs. You may.

[0050]

As described above, the cue bar according to the present invention is constructed as described above, and the following effects can be obtained.

(1) According to the first aspect of the present invention, after the bracket is fitted around the columnar body, one end and the other end of the bracket are tightened with a screw rod so as to approach each other. Thereby, the bracket can be fixed to the columnar body. In addition, the bracket can be removed from the column by releasing the tightening by the screw rod. Therefore, it can be easily attached to and detached from the columnar body. In addition, the threaded rod allows one end and the other end of the bracket to approach each other and does not need to be configured to penetrate the columnar body, so that the columnar body is attached without any processing. be able to. That is,
The installation position can be easily changed, and it can be easily retrofitted to any necessary position on the columnar body. Further, since there is no need to machine a hole such as a threaded rod insertion hole in the columnar body, there is no need to remain at the position after removing the bracket after any machining. Therefore, the movement does not make the appearance of the portion that has been the installation position deteriorate.

(2) According to the second aspect of the present invention, the bracket is adapted to be fitted to the columnar body through the opening between one end and the other end, and Since the rod is configured to open or close the opening by rotating about one end of the bracket as a fulcrum, the bracket can be easily attached from the side of the columnar body. . That is, as long as the column has a length to which the bracket can be attached, the column can be easily attached to any column.

(3) According to the third aspect of the present invention, the mounting portion of the bracket is formed by a groove that partially fits with the outer peripheral surface of the rod-shaped member and guides the rod-shaped member in a predetermined direction. Therefore, the rod-shaped member can be securely held in a predetermined direction, and the rod-shaped member can be easily attached from the side of the bracket.

(4) According to the fourth aspect of the present invention, since the rod-shaped member is attached to the bracket by being pressed against the mounting portion by the fastening member, it is possible to apply a pressing force by the fastening member. ,
The bar-shaped member can be easily fixed to the bracket.

[Brief description of the drawings]

FIG. 1 is a view showing a cue rod shown as one embodiment of the present invention, wherein (a) is a front view and (b) is a side view.

FIG. 2 is a view showing the cue stick, which is shown in FIG.
It is an arrow view.

3 (a) is a front view, FIG. 3 (b) is a view from arrow B in FIG. 3 (a), and FIG. 3 (c) is a view from arrow C in FIG. 3 (a).

FIG. 4 is a front view of a portable workbench to which the cue bar is attached.

FIG. 5 is a side view of the portable workbench to which the cue bar is attached.

FIG. 6 is a plan view of a portable workbench to which the cue bar is attached.

FIG. 7 is a front view of a portable workbench to which a cue bar shown as a conventional example is attached.

FIG. 8 is a front view showing the cue stick.

FIG. 9 is a front view showing the operation of the cue bar.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 Cue bar 4 Bracket 4a One end 4b The other end 4c Opening 5 Bar-shaped member 6 Screw bar 7 Fastening member 11 Column (columnar body) 11a Stepping board (object) 12 Top plate (object) 45 Mounting part

Claims (4)

[Claims] 1. A cue bar for supporting a person on an object having a predetermined height on which a person moves up and down, comprising: a bracket detachably mounted on a columnar body located near the object. A rod-shaped member attached to an attachment portion of the bracket and arranged at a position that assists a person; and the bracket is formed so as to surround a predetermined amount of the periphery of the columnar body. It is provided with a screw rod connecting one end and the other end, and the one end and the other end are brought close to each other with the screw rod so that the one end and the other end are fixed to the columnar body. A cue stick characterized by the fact that: 2. The cue bar according to claim 1, wherein the bracket is adapted to be fitted to the column through an opening between one end and the other end. A cue rod wherein the opening is opened or closed by rotating the bracket about one end thereof as a fulcrum. 3. The cue bar according to claim 1, wherein the mounting portion of the bracket is formed by a groove that partially fits with an outer peripheral surface of the bar-shaped member and guides the bar-shaped member in a predetermined direction. A cue stick characterized by being. 4. The cue bar according to claim 1, wherein the bar member is attached to the bracket by a fastening member that presses the bar member against the attachment portion.