JPH045421Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention relates to a transport vehicle for transporting goods in stores, warehouses, etc., and in particular, the invention relates to a transport vehicle for transporting goods in stores, warehouses, etc. Regarding transport vehicles with ladders.

Problems to be solved by conventional techniques and ideas Conventionally, the above-mentioned transport vehicle with a ladder is
For example, when using a ladder, the structure is such that the ladder is supported on the vertical frame of a transport vehicle with casters so that it can be raised and lowered freely, but does not fall over, and the ladder is normally lifted off the floor by the biasing force of a spring. In some cases, the worker lowers the ladder by putting his or her weight on it, and then climbs up and down the ladder with the lower ends of the supports on both sides touching the floor. When a car is in use, the load acting on the ladder is supported by the transport vehicle, which can be easily moved by casters. There was a high risk of movement, which was dangerous for workers.

Means for Solving the Problems As a means for solving the above-mentioned problems, the present invention provides a lifting guide member for each of a pair of vertical frames supporting the top plate of a transport vehicle, and a grounding position for each lifting guide member. The top ends of the columns on both sides of the ladder, which touch the ground diagonally when the lifting legs touch the ground, are pivotally supported on the upper ends of the lifting legs that are supported to freely slide between the ground and the non-grounding position, and
The ladder has a protruding hook piece that is hooked onto the carrier at the non-grounding position of the lifting leg to hold the ladder at the non-grounding position.

Functions and Effects of the Invention The present invention has the above-mentioned structure, and when folding the ladder, the ladder is lifted and swung around the top end of the support so as to close against the elevating legs. Then, the lifting legs are lifted along the lifting guide, and with the supports aligned along the lifting legs, the hooks of the ladder are hooked to the carrier, and the ladder is folded and raised from the floor together with the lifting legs. It is fixed to the transport vehicle in a floating state, and when assembling the ladder for use, the hooks are removed from the transport vehicle and the ladder is lowered by swinging it open to the lifting legs. At the same time, the lifting legs descend along the lifting guide and their lower ends hit the floor, and after this,
By swinging the ladder closed and hitting the lower end of the support column away from the lower end of the lifting leg on the floor, the ladder and the lifting leg stand on the floor in a triangular shape. The ladder can be folded by simply lifting it up while swinging and hooking the hook pieces to the carrier, and the ladder can be assembled by simply removing the hook pieces and lowering the ladder while swinging it. The folding and assembling of the ladder can be done easily and quickly, and since the ladder is aligned with the lifting legs in the folded state, it does not need to be moved far from the transport vehicle and can be packed into small pieces. In the assembled state, the ladder and the lifting legs form a triangle and stand on the floor, so the ladder is stable and the worker can work safely.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings.

The carrier body 1 of the ladder-equipped carrier according to this embodiment is as follows:
A pair of left and right frames 2 formed by extending both front and rear ends of a horizontal horizontal frame 3 upward to form vertical vertical frames 4, 4;
The bottom plate 8 is stretched between the horizontal frames 3, 3 of 2, and a pair of upper and lower connecting frames 5, 5 are stretched between the vertical frames 4, 4 corresponding to the left and right sides, respectively. A top plate 6 is placed on the upper end, a handrail 7 is fixed to the rear vertical frames 4b, 4b, and a pair of front and rear casters 9, 9 are installed on the lower surfaces of both horizontal frames 3, 3, respectively. is fixed.

Elevating guide members 10 each having a sliding hole 11 are provided in the front vertical frames 4a, 4a of the carrier body 1.
A pair of upper and lower legs protrudes forward, and each pair of lift guide members 10, 10 has a lift leg 12 fitted with a non-slip rubber cap 13 at the lower end of the slide hole 1.
1 and 11 substantially tightly, the vertical frame 4a
At the upper end of each elevating leg 12, there is a pair of support columns 16, which have a longer overall length than the elevating leg 12 and have a non-slip rubber cap 18 fitted at the lower end. The upper ends of both supports 16, 16 of the ladder 15, which is formed by sandwiching two treads 19, 19 with anti-slip rubber plates 17 stretched between them The ladder 15 is connected freely to swing by the swing shaft 21 at the position of
is designed to swing back and forth around a swing shaft 21 to open and close relative to the lifting leg 12, and a hook piece 20 made of a bent steel plate is fixed to the tread 19a on the upper side of the ladder 15. By hooking this hook piece 20 onto the upper surface of the upper connecting frame 5a between the front vertical frames 4a, 4a, the ladder 15 is held in a vertical position floating above the floor. It's getting old.

When folding the ladder 15 in order to move the ladder-equipped carrier of this embodiment, the ladder 15 is lifted while being closed, and the elevating legs 12 are raised along the elevating guide member 10, so that the hook pieces 20 are attached to the connecting frame 5a. By aligning the support 16 parallel to the lifting legs 12 at the upper position and lowering the ladder 15 together with the lifting legs 12, the hook piece 20 is caught on the connecting frame 5a as shown in FIG. The ladder 15 floats off the floor together with the lifting legs 12 and is held between the lifting legs 12, 12, and the folded ladder 15 is placed in front of or inside the carrier body 1. Since it does not protrude from the sides, there is less risk of bumping into the surroundings while moving, and the internal storage space will not become narrow. In addition, when assembling the folded ladder 15 for use, lift the ladder 15 slightly upward, remove the hook piece 20 from the connecting frame 5a, and then
While opening 5, lower it together with the lifting legs 12,
By closing the ladder 15 in the opposite direction when the lower end of the lifting leg 12 vertically hits the floor surface, the support 1 that is longer than the lifting leg 12 can be closed as shown in FIG.
The lower end of the ladder 6 hits a position in front of the lower end of the lifting leg 12 on the floor, and the ladder 15 forms a right triangle on the floor with the lifting leg 12 in an oblique position that makes it easy for the worker to climb up and down. Ladder 1
The weight of the worker who has risen to
2, even if the carrier body 1 is accidentally pushed during work, the ladder 15 is difficult to move, allowing the worker to work safely.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway external perspective view of the assembled ladder in use;
Figure 2 is a partial sectional view of the ladder in its folded state;
The figure is a partially cutaway side view of the ladder in an assembled state. 1...Carrier body, 4...Vertical frame, 8...Bottom plate,
10... Lifting guide member, 12... Lifting leg, 15...
...Ladder, 16... Support, 20... Hook piece, 21...
Swing axis.

Claims (1)

[Scope of utility model registration request] A lifting guide member is provided on each of a pair of vertical frames that support the top plate of the transport vehicle, and a lifting leg is attached to the upper end of the lifting leg that is supported by each lifting guide member so as to be able to slide freely between a grounded position and a non-grounded position. The upper ends of the pillars on both sides of the ladder that touch the ground diagonally when the legs touch the ground are pivotally supported, and the ladder is held in the non-ground position by being hooked to the carrier at the non-ground position of the elevating legs. A transport vehicle with a ladder that features protruding hooks.