JP3090020U - Stepladder with retainer - Google Patents

Abstract

(57) [Summary] A stepladder 1 to which a temporary tool bar 11 can be attached and detached.
In this case, the detachable portion is prevented from adhering to mud and dust, and is easily repaired even if the detachable portion collides with something and deforms. A ring-shaped support base (15a, 15b, 15c, 1) is provided.
5d are aligned substantially in the same center, and a holding tool 9 having ring-shaped fasteners 17a and 17b fixedly provided in the middle of the adjacent support base 15 is fixed to the side surface 8 of the leg 3a of the stepladder 1. Set up. The lower part of the temporary tool bar 11 is used as the support 1 for the holder 9.
5a, 15b, 15c, and 15d, and the fasteners 17a and 17b,
The lower part of the temporary tool bar 11 is fastened to the support bases 15a, 15b, 15c, 15d by pulling through the respective rings 18a, 17b in the direction perpendicular to the center.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a stepladder, and more particularly, to a tool temporary holding rod holder for temporarily placing a work tool on a stepladder.

[0002]

[Prior art]

 A worker on a stepladder stays on the floor while riding on a stepladder, when exchanging the work tool being used with another tool, except for exchanging pliers and a screwdriver attached to the waistband. The worker was asked to give the next work tool to be used, or to get off the stepladder, hold the next worktool and climb the stepladder again.

[0003] Since the work on a stepladder has a risk of falling down, it has been desired to install a grasping rod at a position where it does not interfere with the work.

[0004] Under such circumstances, when the stepladder is used, the tool placement rod on which the work tool can be suspended is moved to a position near the top plate 11 of the stepladder 7 so as not to obstruct the work, and furthermore, the balance of the body is broken. A “stepladder with retainer” has been devised in which a work tool can be suspended and temporarily placed on a temporary placement rod by temporarily erection it at a position that can also serve as a fall prevention aid in the event of a crash. And Japanese Patent Application No. 2001-006385.

As shown in FIG. 8, a “stepladder D with a holding tool” according to the Japanese Patent Application No. 2001-006385 has a holding tool 26 for holding the tool temporary placing rod 25 fixed to a side surface of the stepladder. Things. The holding tool 26 is for inserting the lower part of the tool temporary holding rod 25 into the cylinder 27 hole and holding the tool temporary holding rod 25 vertically, and opening the ladder part of the “stepladder D with holding tool” to open it horizontally. When installed on the floor, the cylinder 27 is fixedly mounted on the pedestal so that the temporary tool bar 25 can be erected vertically.

[0006] The conventional "stepladder D equipped with a holder" has a structure in which the temporary tool bar 25 is inserted into the cylinder 27. Therefore, when the temporary tool bar 25 is used without using the temporary tool bar 25, depending on the use environment, Mud and dust may enter the hole of the cylinder 2 and adhere to the inner wall. In such a case, the temporary tool bar 25 cannot be inserted into the cylinder 27 unless the hole of the cylinder 27 is cleaned. There is a problem that cleaning the hole of the cylinder 27 is very troublesome because the cylinder 27 is thin and long.

Further, when the cylinder 27 collides with something and is recessed, there is a problem that the temporary tool bar 25 cannot be inserted into the cylinder 27. Since the cylinder 27 is usually fixed to the pedestal by welding, it is difficult to repair the concave portion.

Under these circumstances, if the above-mentioned problem is solved, a more convenient “stepladder equipped with a holder” will be born.

[0009]

[Problem to be solved]

 It is possible to attach the tool suspension rod to the holder provided on the stepladder, even if the mounting part of the tool temporary rod is soiled with mud or dust, even if the mounting part of the tool temporary rod collides and is deformed. Repair of the deformed part is made easy.

[0010]

[Means for Solving the Problems]

 The three or four ring-shaped support bases are fixed to the pedestal of the holder by being substantially vertically aligned and substantially vertically aligned, and a ring-shaped fastener is provided between the two upper support bases. A ring-shaped fastener is provided between the two lower supports. Alternatively, the two ring-shaped support bases are vertically aligned in substantially the same center and fixed to the pedestal of the holder, and a fastener is provided between the two ring-shaped support bases.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS

 FIG. 1 shows a perspective view of the "stepladder A with a holder" of the present invention, and FIG. 2 shows a state where the tool holding rod 11 is fixed to the holder 9 of the "stepladder A with a holder". It is a perspective view.

[0012] The tool placement rod 11 is set up almost vertically in a state in which the "stepladder A with the holding tool" has one ladder 6 and the other ladder 7 open on a horizontal floor. I have. As shown in FIG. 3, the tool temporary holding rod 11 in FIG. 2 has a linear lower portion. An angle adjuster 13 is provided on the top, and a photographing machine 12 is mounted thereon. ing.

FIG. 4 is an enlarged perspective view of the holding tool 9 in the “stepladder A with holding tool” in FIG. 2, and the holding tool 9 is opened by opening the ladder part 6 on one side and the ladder part 7 on the other side. When installed on a natural floor, the four support bases 15a, 15b, 15c, and 15d are fixed to the pedestal 14 so as to be substantially identical to each other and to be arranged substantially vertically in a row, and the upper two support bases A fastener 17a is provided between the lower support 15a and the support 15b, and a fastener 17b is provided between the lower two supports 15c and the support 15d. It is fixed to the side surface 8 with a bolt and nut 10.

Here, the ladder portion 6 on one side and the ladder portion 7 on the other side have a wider lower side than the upper side in order to stabilize the stepladder 1, so that the ladder portion 3 a, 3 b, 3 c, 3 d on the side opposite to the step 5 is formed. Each side 8 is inclined. For this reason, the contact surface of the pedestal 14 with the side surface 8 of the leg rod 3a is opposite to the side of the pedestal 14 when the ladder part 6 and the other ladder part 7 are opened and installed on a horizontal floor. Are inclined so that the surface of each of them becomes a vertical plane.

Each of the support bases 15 a, 15 b, 15 c, and 15 d has a round hole for inserting and holding a lower portion of the temporary tool bar 11, and is fixed to the pedestal 14 with a bolt and nut.

Each of the fasteners 17 a and 17 b is for inserting a bolt 19 connected to the ring 18 into a hole of the pedestal 14 and screwing a wing nut 20 to a screw portion of the bolt 19. The lower part of the placing rod 11 is fitted into the wheel 18 and then each wing nut 20 is screwed in. The lower part of the temporary placing rod 11 is pressed against each of the support bases 15a, 15b, 15c and 15d and fastened. I do.

Each of the support bases 15a, 15b, 15c, 15d and each of the fasteners 17a, 17b have a shallow depth even if muddy or dust adheres thereto. If the lower part of the tool placing rod 11 is inserted from above the mud and dust, the mud and dust are peeled off and are sequentially inserted. The peeled mud and dust fall on the floor when the tool temporary placing rod 11 is inserted, so that they do not hinder the insertion.

Each of the supports 15a, 15b, 15c, 15d and each of the fasteners 17a, 17b have a shape as shown in FIG. 4 even if they are deformed by colliding them with something. In addition, since the mounting method is simple and the mounting / removing method is also simple, it is easy to manufacture a replacement product and the replacement with a damaged product can be simplified.

Since the “stepladder A with the holding tool” of the present invention has the above-described configuration, when the temporary tool bar 11 is used, first, the ladder part 6 on one side and the ladder part 7 on the other side of the stepladder 1 are opened. Install on a horizontal floor.

By moving the wing nuts 20 of the fasteners 17 a and 17 b away from the ring 18, the center of the ring 18 is easily aligned with the center 16 of the support bases 15 a, 15 b, 15 c and 15 d, and the tool Facilitates insertion of lower end of temporary storage rod 11 into wheel 18

Next, as shown in FIG. 5, the lower end of the temporary tool holding rod 11 is placed on the support 15a, the fastener 17a, the support 15b, the support 15c, the fastener 17b, and the support 15d in this order. After the insertion, while holding the tool placement rod 11 at an appropriate height with one hand, the gap between the tool placement rod 11 and the support 15a and the gap between the tool placement rod 11 and the support 15d. Is tilted toward the opposite side of the pedestal 14 within the range of (1). It is to be noted that the tool temporary placing rod 11 in the figure represents a situation where it is inclined with respect to the center 16 of the support bases 15a, 15b, 15c and 15d.

Further, as shown in FIG. 5, the other hand is used to fasten the fastener 1 as shown in FIG. 5 within the gap between the hole through which the bolt 19 of the fastener 17 b of the pedestal 14 penetrates and the bolt 19. The tool holding rod 11 is pushed toward the pedestal 14 while the wheel 18b of 7b is inclined downward, and the lower part of the tool holding rod 11 is brought into contact with the wheel 18 of the fastener 17b. Since the tool temporary holding rod 11 is in contact with and engaged with the inclined wheel 18 of the fastener 17b, it is suspended in the air without falling.

The tool temporary holding rod 11 that is suspended in the air in a slant is pulled out of the loop 18 of the fastener 17b toward the opposite pedestal 14 side with the other hand to release the hook, and the tool temporary holding rod 11 on one side holding the tool temporary holding rod 11 By moving the hand up and down, it is possible to freely move up and down.

As described above, after the tool placement rod 11 is set at an appropriate height, the wing nuts 20 of the fasteners 17a and 17b are screwed, and the tool placement rod 11 is bent. The tool holding rod 11 is pressed against the support 15a and the support 15b by the ring 18 of the fastener 17a, and is pressed against the support 15c and the support 15d by the ring 18 of the fastener 17b, so that the support 15a, 15b, Fastened to each of 15c and 15d.

When the conventional “stepladder with holder D” pushes the top of the tool temporary placing bar 25 in the horizontal direction, the insertion portion of the tool temporary placing bar 25 moves in the gap with the cylinder 27, whereas the present invention is applied. The "stepladder A with the holding tool" described above is such that when the top of the tool holding rod 11 is pressed in the horizontal direction, a large force acts on the holding tool 9 due to the principle of leverage. The lower part of 11 is pressed by the four support bases 15a, 15b, 15c, and 15d and is firmly fixed, so that it has an effect that it is difficult to move.

In particular, when the temporary tool bar 11 is formed of a pipe, the pipes are bent in the radial direction by the screwing of the wing nuts 20 of the fasteners 17a and 17b. As a result, the contact area of each round hole of the support bases 15a, 15b, 15c, and 15d with the inner surface is widened and the support bases 15a, 15b, 15c, and 15d are further firmly fastened. , 15c and 15d have a special effect that they do not move in the gaps between the respective round holes.

By loosening the wing nuts 20 of the fasteners 17a, 17b, the tool placement rod 11 can be extracted from the support bases 15a, 15b, 15c, 15d.

[0028]

Embodiment 1 A "stepladder B with a holder" of the present invention is a stepladder 1 in which a holder 21 is fixed to a leg 3 as in the case of "stepladder A with a holder". FIG. 6 shows an enlarged perspective view of the holder 21 in the "stepladder B with the holder". The holder 23 is composed of three support bases 15a, 15b and 15c, and the fastener 17a. Is provided between the support 15a and the support 15b, and the fastener 17b is provided between the support 15b and the support 15c.

The “stepladder B with the holding tool” has the same structure as the “stepladder A with the holding tool” described above, so that the support bases 15a, 15b, 15c and the fasteners 17a, 17b have muddy soil. Even if dust or dirt is attached, the temporary tool bar 11 can be easily passed through them.

Further, even if the support 15 or the fastener 17 is deformed by colliding with something, the deformed support 15 or the fastener 17 is replaced with the above-mentioned “stepladder A having a holder”. Can be easily repaired.

The “stepladder B with the holding tool” of the present invention has the same structure as the above “stepladder A with the holding tool” even when the temporary tool bar 11 is strongly pushed in the horizontal direction. It has a special effect that it is difficult to move. However, the “stepladder B with the holding tool” has one fewer support bases 15 than the “stepladder A with the holding tool” described above, that is, lacks the support base 15d. It is inferior to the "stepladder A with the holding device" in terms of the difficulty of movement.

[0032]

Embodiment 2 A "stepladder C with a holder" of the present invention is a stepladder 1 in which a holder 23 is fixed to a leg 3 in the same manner as "a stepladder A with a holder". FIG. 7 is an enlarged perspective view of the holding tool 23 in the “stepladder C with holding tool”. The holding tool 23 has a fastener 17a provided between two support bases 15a and 15b. Have been.

When the two supports 15a and 15b are installed on a horizontal floor with one side ladder 6 and the other side ladder 7 of the stepladder 1 open, the center 16 is substantially vertical. They are tandem.

The “stepladder C with the holding tool” has the same structure as the “stepladder A with the holding tool” described above, so that mud or dust adheres to the support bases 15a, 15b and the fastener 17a. Even if it does, the tool temporary placing rod 11 can be easily passed through these.

Further, even if the supports 15a, 15b and the fastener 17 are deformed by colliding with something, the deformed support 15 or the fastener 17a is replaced with the above-mentioned "stepladder A having a holder". It can be easily repaired as well.

[0036]

【effect】

 As described above, the "stepladders A, B, and C having the holding tool" of the present invention have a structure in which the temporary tool bar 11 inserted into the support base 15 is not fastened and the fastener 17 is slightly moved. If it is inclined, the temporary tool bar 11 will have a special feature that it will engage with the fastener 17 and will not drop.

For this reason, the “stepladder A, B, and C equipped with the holding tool” of the present invention holds the temporary tool placement rod 11 at an appropriate height position with one hand and the other hand with one hand. By inclining the fastener 17, there is an unprecedented extraordinary effect that the tool temporary placing bar 11 can be temporarily fixed at an appropriate height position and then fastened.

The “stepladders A and B equipped with holding tools” of the present invention can be configured such that even if the tool placement rod 11 is strongly pushed in the horizontal direction, at least three support bases 15 are provided below the tool placement rod 11. It has an unprecedented effect that it is difficult to move because it is pressed and fixed. Therefore, the “stepladders A and B having the holding tool” of the present invention are convenient for holding the photographing machine 12.

[Brief description of the drawings]

FIG. 1 is a perspective view of a stepladder with a holder according to the present invention.

FIG. 2 is a perspective view showing a state where a temporary tool bar is inserted into and fixed to the holder of the stepladder with the holder of the present invention.

FIG. 3 is a perspective view showing a lower portion of a temporary tool placement rod.

FIG. 4 is an enlarged view of a portion where a tool temporary holding rod is fixed by a holder including four support bases.

FIG. 5 is a longitudinal sectional view showing a situation in which a temporary tool bar is hooked on a fastener so as not to fall.

FIG. 6 is an enlarged view of a part where a tool temporary placing rod is fixed by a holder including three support bases.

FIG. 7 is an enlarged view of a portion where the tool temporary placing rod is fixed by a holder including two support bases.

FIG. 8 shows a perspective view of a conventional “stepladder with holder D”.

[Explanation of symbols]

A {"stepladder with holder" of the present invention B} "stepladder with holder" of the present invention C} <<"Stepladder with holding tool" of the present invention D} Conventional "stepladder with holding tool" 1} {Stepladder 2} Top plate 3} Legs 3a, 3b {Legs 3c, 3d} ‥‥ leg rod 4 ‥‥‥‥‥‥‥‥‥‥‥ connecting beam 5 ‥‥‥‥‥‥‥‥‥‥‥ step 6 ‥‥‥‥‥‥‥‥‥‥‥ one side ladder 7 ‥‥‥ ‥‥‥‥‥‥‥‥ Other ladder part 8 ‥‥‥‥‥‥‥‥‥‥‥ Side 9 ‥‥‥‥‥‥‥‥‥‥‥ Holder 10 ‥‥‥‥‥‥‥‥‥‥ Bolts and nuts 11 ‥‥‥‥‥‥‥‥‥‥ Tool temporary storage rod 12 ‥‥‥‥‥‥‥‥‥‥ Camera 13 {Angle adjuster 14} Pedestal 15a, 15b {Support 15c, 15d} Support 16 ‥‥‥‥‥ Street core 17a, 17b ‥‥‥‥‥ Fastener 18 ‥‥‥‥‥‥‥‥‥‥ Wheel 19 ‥‥‥‥‥‥‥‥‥‥ Bolt 20 ‥‥‥‥‥‥‥‥ {Wing nut 21} Holder 22} Pedestal 23} Holder 24 ‥‥‥ Pedestal 25 ‥‥‥‥‥‥‥‥‥‥ Tool temporary storage rod 26 ‥‥‥‥‥‥‥‥‥‥ Holder 27 ‥‥‥‥‥‥‥‥‥‥ cylinder 28 ‥‥‥ ‥‥‥‥‥ Drill 29 ‥‥‥‥‥‥‥‥‥‥ Thunder

Claims (2)

[Utility model registration claims] 1. A stepladder having a holder for erecting a center of a temporary tool bar when the ladder portion is opened and placed on a horizontal floor surface substantially perpendicular to the floor surface. The four or four ring-shaped support bases are arranged substantially vertically and substantially vertically in a row and fixed on the opposite side of the pedestal on the opposite leg, and a ring-shaped fastener is provided between the two upper support bases. A stepladder provided with a holder, wherein a ring-shaped fastener is provided between the two lower supports. 2. A stepladder equipped with a holder according to claim 1, wherein the holder according to claim 1 has one fastener provided between two support bases.