JPS6134199Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a trolley with a step stool that can be conveniently used when taking things in and out of high places on shelves.When not in use, the trolley can be folded into a flat plate on the trolley. This is to make it possible to do this.

An embodiment of the present invention will be described below with reference to the accompanying drawings. Reference numeral 1 denotes a dolly having fixed wheels 2 and free wheels 3, and 4 denotes a pair of left and right support frames, the ends of which of channel members 5 connected forward from the lower end are pivotally attached to the left and right protruding frame members 1a at the rear end of the dolly 1 by horizontal cross shafts 6, and in the upright position A shown in Fig. 1, the channel members 5 are mounted on the protruding frame members 1a of the dolly 1 and are fixed to said protruding frame members 1a by bolts 7. Reference numeral 8 denotes a platform, the rear left and right protruding frame members 8a at both rear ends of which are pivotally attached to the rear ends of channel members 9 connected forward from the upper end of the support frame 4 by horizontal cross shafts 10, and in the use position A shown in Fig. 1, the platform is positioned above the dolly 1 in a horizontal state relative to the support frame 4 in the upright position A.
In the embodiment, a fixing means is provided for fixing the protruding frame portion 8a to the channel member 9 by a bolt 11 in a state where the protruding frame portion 8a is placed on the channel member 9. Reference numeral 12 denotes a pair of handrails on the left and right, both ends of which are fixed to the protruding frame portion 8a of the step 8 and the support frame 4 by bolts 13, 14.
The ladder 15 is attached to the support frame 4. The ladder 15 has a pair of left and right rods 18 supported by a pair of upper and lower support members 16, 17 fixed to the support frame 4 so as to be able to rise and fall.
8, and a step plate 19 that biases the rod 18 upward to the lower end 18 of the rod 18.
A compression coil spring 20 that keeps a above the floor surface
It is composed of:

As shown in FIG. 1, by fixing the support frame 4 to the trolley 1 with bolts 7 in the upright state A, and fixing the step stool 8 to the support frame 4 with bolts 11 in the usage position A, the step stool 8 can be attached to the trolley 1.
The worker can use the ladder 15 to climb onto the step stool 8 and perform work using the step stool 8 as a foothold. The ladder 15 is lowered against the spring 20 by the worker riding on the step plate 19, and the lower end 18a of the rod 18 touches the ground, stabilizing the ladder 15 and fixing the cart 1 to the ground.

When not using step stool 8, first use handrail 12.
is removed from the step stool 8 and the support frame 4 by removing the bolts 13 and 14, and then removing the bolt 11 and moving the step step 8 onto the horizontal horizontal axis 10 as shown in FIG.
, and switch to the storage position b where it overlaps the support frame 4. Further, the bolt 7 is removed, and the support frame 4 is rotated forward together with the step stool 8 in the retracted position B around the horizontal horizontal axis 9, and the support frame 4 is laid down on the trolley 1 as shown in FIG. Switch to.

As shown in the above embodiment, the trolley with a step stool of the present invention can be conveniently used as a stepladder that can be moved freely for work at heights, and when not in use, such as during transportation or storage, it can be attached to the support frame. The step stool can be folded in a zigzag manner and stacked on top of the trolley to make the whole thing into a flat plate shape, thereby reducing the space occupied during transportation and storage, thereby reducing costs.

Furthermore, according to the configuration of the present invention, the following effects can be obtained.

That is, in the use position of the trolley with a step stool of the present invention, a ladder for climbing up and down the step stool is attached along the support frame that stands up from one end of the trolley. If the ladder is fixed, there is a risk that when climbing on the ladder, the weight will be applied to one end of the cart, causing the cart to tip over or move loosely, making it impossible to climb up and down the ladder safely. do not have.

However, according to the configuration of the present invention, the ladder is movable up and down between a lowered position where the lower end of the ladder can touch the ground when the support frame is in an upright state, and an elevated position where the lower end of the ladder floats above the ground. Also, since a spring is installed to bias and stabilize the ladder in the raised position, even though the cart can be moved freely when no one is on the ladder, when a person gets on the ladder. Since the lower end of the ladder is automatically grounded and the body weight is directly supported on the ground (floor surface), the above-mentioned overturning and unexpected movement of the cart are prevented and it can be used safely.

[Brief explanation of the drawing]

FIG. 1 is a side view of the device in use, FIG. 2 is a rear view of the left half of the device, FIG. 3 is a side view of the step stool in its folded state, and FIG. 4 is a side view of the device in its entirety folded into a flat plate. 1... Trolley, 4... Support frame, 5, 9...
Channel member, 6, 10...Horizontal horizontal axis, 7, 11, 1
3, 14... Bolt, 8... Step stool, 12... Handrail, 15... Ladder.

Claims (1)

[Scope of utility model registration request] A support frame is pivotally attached to one end of the trolley so that it can be slid freely between a lying state and an upright state, and the upper end of this support frame is placed above the trolley in a horizontal state with respect to the support frame in the upright state. One end of the step stool is pivoted so as to be slidable between a use position located on the support frame and a storage position overlapping the support frame in the collapsed state,
A fixing means for fixing the support frame in an upright state to a trolley and a fixing means for fixing a step stool in a use position to the support frame are provided, and a ladder is attached to the support frame, and a lower end of the ladder is attached to the support frame when the support frame is in the upright state. The platform is equipped with a spring that biases and stabilizes the ladder toward the elevated position.