JP6400487B2 - Storage box for stepladders and its mounting jig - Google Patents

Description

  The present invention relates to a stepladder storage box and its mounting jig, and more particularly to a stepladder storage box in which a receiving box does not obstruct work and can be easily set on a stepladder.

  Stepladders are often used for high altitude work in orchards, such as construction work, interior work, and construction sites for electrical machinery. For example, when inspecting and repairing ceiling-embedded air conditioners, many bolts, nuts, and parts are removed and the stepladder is stepped down and placed on the floor or ground, or placed on the top of the stepladder. Moving up and down would be a heavy burden, and if placed on the top plate of a stepladder, the bolts, nuts and parts could fall due to slight impact or vibration and could be lost.

  In contrast, a storage box for a stepladder (Patent Document 1) in which a belt is fixed to the side of the receiving box and the belt is attached to both legs directly below the top plate of the stepladder (Patent Document 1), and a mounting bracket is attached to the upper part of one leg of the stepladder. Mounting with screws, standing pole on the mounting bracket, and fixing the receiving box to the pole (Patent Document 2), mounting the base on the top plate of the stepladder and detachably holding the base Has proposed a mounting shelf for a stepladder (Patent Document 3) in which the rear end portion of the receiving shelf is fixed and the front end portion of the receiving shelf is supported on a step of the stepladder by bracing.

  As for the ladder, a storage box for a ladder is known in which the hook is used to hook the front end of the receiving box to the lower step with the hook, and the lever connected to the rear end of the receiving box is hooked to the upper step with the hook. (Patent Document 4).

JP 2009-1114833 A JP 2001-132370 A Japanese Patent Laid-Open No. 10-115165 JP 07-310485 A

  However, in the storage box for a stepladder described in Patent Document 1, the receiving box is attached to the stepladder with a belt, so that the attachment position is limited to the front side of the stepladder, and it is difficult to use depending on the situation where the stepladder is set up. was there.

  Further, in the storage box for stepladders described in Patent Document 2, not only the pole may be in front of the top plate and hit the operator's hand or arm, but the work may be obstructed. Was cumbersome.

  Furthermore, since the mounting shelf for the stepladder described in Patent Document 3 mounts a heavy object such as a cooler indoor unit, the mounting position is limited to the front side of the stepladder, although the structure is sturdy, depending on the situation where the stepladder is set up. In addition to being difficult to use, the mounting of the base to the stepladder top plate and the mounting to the bracing stepladder was complicated.

  In view of such problems, it is an object of the present invention to provide a storage box for stepladders in which a receiving box does not interfere with work and can be easily set on a stepladder or a ladder.

  Therefore, the stepladder storage box according to the present invention is a stepladder storage box in which the receiving box is set on the top plate of the stepladder or the leg of the ladder, and includes a receiving box and a mounting jig. The tool is provided with a mounting bracket composed of an upper part and a lower part, and a receiving box is mounted on the upper part of the mounting bracket so as to be detachable, and on the back surface of the lower part of the mounting bracket. A locking plate is attached, the locking plate has a width that can be inserted into a gap to be attached and a lateral length that is locked in the gap, and the locking plate is inserted into the gap to be attached. The locking plate is locked in the gap to be attached by being rotated.

  One of the features of the present invention is that the locking plate is inserted into the gap between the stepladder top plates and rotated to lock the locking plate into the gap between the stepladder top plates.

  Accordingly, the receiving box can be easily set on the stepladder by insertion and rotation without the need for screw tightening or the like as in the case of the stepladder storage box described in the conventional publication. In addition, since the receiving box can be attached to the gap such as the top plate, it does not interfere with the work.

  The mounting bracket is mounted using the gap between the stepladder top plates, but the mounting base is attached to the ladder, a gap corresponding to the gap between the stepladder top plates is formed on the mounting base, and the locking plate of the mounting bracket is attached to this gap. It may be.

  That is, the gap to be attached can be the gap between the stepladder top plates, or the attachment base can be attached to the ladder, and the gap corresponding to the gap between the stepladder top plates can be attached to the attachment base. Here, the mounting base is provided between the U-shaped brackets by urging the rod in the extending direction by a spring member, and the plate can be attached to the rod so that the angle can be adjusted, thereby forming a gap in the plate.

  In addition, the above mounting jig is also novel. A mounting jig for a stepladder storage box according to the present invention is a mounting jig used in a stepladder storage box in which a receiving box is set on a top plate of a stepladder or a leg of a ladder. A mounting bracket comprising a lower part is provided, and a receiving box is mounted on the upper part of the mounting bracket so that it can be detachably mounted. On the back surface of the lower part of the mounting bracket, a locking plate is provided. The locking plate has a width that can be inserted into a gap to be attached and a lateral length that is locked to a side edge of the gap, and the locking plate is inserted into the gap to be attached and rotated. By doing so, the mounting bracket is locked in the gap to be mounted.

  The mounting jig further includes a mounting base, and the mounting base is configured by connecting a rod between left and right U-shaped brackets that can be fitted to the legs of the ladder, and the rod is biased in the extending direction by a spring member. In addition, a plate can be attached to the rod so that the angle can be adjusted, and a gap into which the locking plate can be inserted can be formed in the plate.

It is a schematic perspective view which shows the state which attached the preferable embodiment of the storage box of stepladders concerning this invention to the stepladder. It is a schematic perspective view which shows the surface state of the mounting bracket in the said embodiment. It is a schematic perspective view which shows the back surface state of the mounting bracket in the said embodiment. It is a schematic perspective view which shows the attachment bracket in 2nd Embodiment. It is a schematic perspective view which shows 3rd Embodiment.

  Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 to 3 show a preferred embodiment of a storage box for stepladders according to the present invention. In the figure, a storage box for a stepladder is composed of a mounting jig 10 and a receiving box 20, and the mounting jig 10 is provided with a mounting bracket 11, and the mounting bracket 11 has an upper portion 11A and a lower step portion 11B via a step portion 11C. Are formed in a continuous shape.

  A receiving box 20 is detachably attached to the upper portion 11A of the mounting bracket 11 by screws 21A and nuts 21B, and a locking plate 12 is attached to the lower portion of the mounting bracket 11 via a spacer 12D. A coil spring 12C is mounted on the shaft portion of the bolt 12A. In addition, you may make it attach the latching plate 12 to the attachment bracket 11 using a hook in one of two sets. Alternatively, the spacer 12D may be fixed to the locking plate 12 by spot welding or the like to increase the strength of the locking plate 12.

  The locking plate 12 is set so that the width W can be inserted into the gap 33 of the top plate 32 of the stepladder 30 and the lateral length L is set to a length that can be locked to both edges of the gap 33 of the top plate 32. Further, both end portions of the locking plate 12 are slightly curved so that the top plate 32 can be easily fitted between the lower step portion 11B of the mounting bracket 11 and the locking plate 12.

  When the storage box of this example is set on the stepladder 30, as shown in FIG. 1, the leg 31 of the stepladder 30 is opened, the angle of the leg 31 is locked with a lever, and then the locking plate 12 of the mounting bracket 11 is secured to the stepladder. When the mounting bracket 11 is rotated approximately 90 ° by being inserted into the gap 33 of the top plate 32 of 30, the top plate 32 of the stepladder 30 is fitted between the lower step portion 11B of the mounting bracket 11 and the locking plate 12 and locked. Thus, the mounting bracket 11 is attached to the top plate 32.

  At this time, when the mounting bracket 11 is slid along the gap 33 of the top plate 32, the receiving box 20 is set at an arbitrary position, for example, a position protruding sideways from the top plate 32 or on the top plate 32. be able to.

  In this state, the bolts, nuts, and parts removed during the work are not lost by placing them in the receiving box 20, and it is not necessary to go up and down the stepladder 30 to place the bolts, nuts, and parts. Thus, not only can the person fall, the safety can be greatly improved, but also the time required for ascending and descending the stepladder 30 can be shortened.

  In addition, since it can be attached to and detached from the mounting bracket 11 of the receiving box 20, it can be freely selected from a large receiving box to a small receiving box according to the use. For example, the fruit harvested in the orchard can be put in the receiving box. This ensures work safety.

  When removing the storage box, the mounting bracket 11 is rotated in the reverse direction, and the locking plate 12 is removed from the gap 33 of the top plate 31.

  FIG. 4 shows a second embodiment. In this example, the safety stopper 11D is fixed to the back surface of the upper portion 11A of the mounting bracket 11, and the safety stopper 11D is brought into contact with the outer end portion of the top plate 32 of the stepladder 30. The mounting bracket 11 is prevented from inadvertently sliding.

  FIG. 5 shows a third embodiment, which is an example applied to a storage box for a ladder. In the figure, the same reference numerals as those in FIGS. 1 to 4 denote the same or corresponding parts. In this example, the mounting jig 10 further includes a mounting base 40. The mounting base 40 is connected between the left and right U-shaped brackets 42 by rods 41A and 41B, and the rods 41A and 41B are mutually connected by a spring member (not shown). It is configured to be urged in the extending direction.

  A plate 44 is attached to the rod 41 </ b> A so that the angle can be adjusted, and the angle can be fixed by a thumbscrew 43. A gap 44A corresponding to the gap 33 of the top plate 32 of the stepladder 30 is formed in the plate 44, and the locking plate 12 of the storage box is inserted into the gap 44A so as to be locked.

  When the storage box of this example is set on the ladder, the U-shaped bracket 42 is fitted to the ladder leg 50 to extend the rods 41A and 41B, thereby attaching the mounting base 40 to the ladder. Next, the angle of the plate 44 of the mounting base 40 is adjusted and fixed by the thumbscrews 43. When the locking plate 12 of the mounting bracket 11 is inserted into the gap 44A of the plate 44 and rotated, the mounting bracket 11 is mounted on the mounting base 40. The mounting bracket 11 may be slid and set at a desired position.

DESCRIPTION OF SYMBOLS 10 Mounting jig 11 Mounting bracket 11A Upper part 11B Lower part 12 Locking plate 20 Receiving box 30 Stepladder 32 Top plate 33 Gap 40 Mounting base 41A, 41B Rod 42 C-shaped bracket

Claims (5)

In a stepladder storage box in which a receiving box is set on the top of a stepladder or a leg of a ladder,
The mounting jig (10) is composed of a receiving box (20), and the mounting jig (10) is provided with a mounting bracket (11) composed of an upper part (11A) and a lower part (11B). ,
On the upper part (11A) of the mounting bracket (11), a receiving box (20) is mounted and detachably attached.
A locking plate (12) is mounted on the back surface of the lower part (11B) of the mounting bracket (11), and the locking plate (12) has a width (W that can be inserted into the gaps (33, 44A) to be mounted. ) And the lateral length (L) locked to the side edge of the gap (33, 44A),
The mounting plate (12) is inserted into the mounting target gap (33, 44A) and rotated to lock the mounting bracket (11) in the mounting target gap (33, 44A). A storage box for stepladders.   The storage box for stepladders according to claim 1, wherein the gap to be attached is a gap (33) of the stepladder top plate (32).   The mounting jig (10) further includes a mounting base (40). The mounting base (40) has a rod (41A, 41B) between the left and right U-shaped brackets (42) that can be fitted into the legs (50) of the ladder. ), The rods (41A, 41B) are urged in the extending direction by spring members, and a plate (44) is attached to the rod (41A) so that the angle can be adjusted, and the plate (44) The stepladder storage box according to claim 1, wherein a gap (44A) is formed in the stepladder. A mounting jig used in a stepladder storage box in which a receiving box is set on a top plate of a stepladder or a leg of a ladder,
A mounting bracket (11) comprising an upper part (11A) and a lower part (11B) is provided,
While a receiving box (20) is mounted on the upper portion (11A) of the mounting bracket (11) and can be detachably mounted,
A locking plate (12) is mounted on the back surface of the lower part (11B) of the mounting bracket (11), and the locking plate (12) has a width (W that can be inserted into the gaps (33, 44A) to be mounted. ) And the lateral length (L) locked to the side edge of the gap (33, 44A),
The mounting plate (12) is inserted into the mounting target gap (33, 44A) and rotated to lock the mounting bracket (11) in the mounting target gap (33, 44A). A mounting jig for a storage box for stepladders, characterized in that The mounting base (40) is further provided, and the mounting base (40) is configured by connecting rods (41A, 41B) between left and right U-shaped brackets (42) that can be fitted into the legs (50) of the ladder, The rods (41A, 41B) are urged in the extending direction by a spring member, and a plate (44) is attached to the rod (41A) so that the angle can be adjusted, and the locking plate (12) is attached to the plate (44). The attachment jig for the storage box for stepladders according to claim 4, wherein a gap (44 </ b> A) into which can be inserted is formed.

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