JPH09249131A - Floor board for conveying carriage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and simply change the floor board of a conveying carriage between the folded state and the operating state. SOLUTION: A moving floor board 3 is provided between floor substrates 1, 2 provided with casters at corner sections, the rear end section 4a of the moving floor board 3 is rotatably fitted to the floor substrate 2, and the front end section 4 is made removable from the floor substrate 1. Guide lugs 21 insertable into two through holes of the floor substrate 1 are protruded on the lower face 6 of the moving floor board 3. Hook pieces 24 capable of being inserted into the through holes and hooked on hook edges are arranged adjacently to the guide lugs 21 respectively. The hook pieces 24 are penetrated and connected by an angular rod 26, an operation rod with a hold section 33 is excited to approach the angular rod 26, and the hook pieces 24 are connected movably in the axial direction to form a floor board 40. A front fence and a rear fence are erected and fixed on the floor substrates 1, 2 to form a conveying carriage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor plate of a carriage for which a bottom plate is foldable.

[0002]

2. Description of the Related Art Conventionally, when a dolly is not used, the floor plate is rotated to position the floor plate in a vertical direction so that the dolly can be folded. There were claws that could be engaged and disengaged and protrusions that appeared.

[0003]

In the above prior art,
Since the floor plate engagement / disengagement work and the floor plate rotation work are separated, there is a problem that the folding or opening work of the carriage becomes complicated. In addition, the nails and protrusions are usually
Since it is necessary to install at least two places, one on each side of the floorboard, and two places have to be operated, the work is further complicated.

[0004]

SUMMARY OF THE INVENTION However, according to the present invention, a guide projection that can be fitted into a through hole of a floor board is provided on a movable floor plate, and a locking piece that can be engaged with and disengaged from a locking edge of the through hole is parallel to the guide projection. Therefore, the above-mentioned problems are solved.

That is, the present invention comprises two floor boards with casters and a moving floor board installed between the floor boards,
One floor board and one side of the moving floor board are rotatably connected,
In a floor plate for a trolley in which the other floor substrate and the other side of the moving floor plate are detachably engaged, two through holes having locking edges are formed in the other floor substrate, Guide projections that can be fitted into the through holes are respectively provided on the lower surface at positions corresponding to the through holes, and the guide projections can be fitted in parallel to the guide projections and can be fitted into the through holes and can be locked to the locking edge. It is a floor plate of a carriage for transporting, characterized in that a piece is provided and both locking pieces are interlocked.

Further, the guide carriage is composed of two juxtaposed projecting pieces having a predetermined gap, the projecting pieces are tapered, and the locking pieces are inserted into the gaps. It is a floorboard. Further, each locking piece corresponding to the through hole is connected by a square rod, and the square rod is biased in a direction to lock the locking piece to the locking edge, and one end of the square rod is connected to the floor moving plate. Form a grip part on the part by protruding to the outside,
It is a floor plate for a carriage, wherein the gripping portion is biased so as to be housed in the floor moving plate.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A moving floor board is installed between two floor boards having casters at the corners, one side of the moving floor board is fixed to one of the moving floor boards, and the other side is detached from the other floor board. Freedom.
Two through-holes having locking edges are formed in parallel on the other floor substrate. At the position corresponding to the through hole on the lower surface of the moving floor board,
Each of the guide protrusions is provided so that it can be fitted into the through hole. The guide projection is composed of two juxtaposed tapered projection pieces and a locking piece provided therebetween. The locking piece can be inserted into the through hole and can be engaged with and disengaged from the locking edge. The two locking pieces are interlocked by a square rod formed by continuously connecting locking portions located outside the moving floor plate to form a floor plate of a carriage.

[0008]

[Function] The moving floor plate is provided with a guide protrusion that can be fitted in the through hole of the floor substrate and a locking piece that locks in the through hole in parallel.
Since the locking pieces are interlocked, the locking edge of the through hole and the locking of the locking piece are guided, so that the locking piece can be reliably locked and unlocked with the locking edge by one operation. it can. In addition, since the locking piece is urged in the direction of locking the locking edge, the locking state is maintained and the locking does not come off, and when the moving floor plate is rotated from the folded state to the used state, the locking piece is locked. If the piece contacts the through hole, the locked state can be easily secured. Since the grip portion is biased so as to be housed in the floor moving plate, the grip portion does not interfere with the use of the transportation cart when the grip portion is not operated.

[0009]

Embodiment 1 An embodiment of the present invention will be described with reference to the drawings. This embodiment shows an example applied to a carriage for accommodating and conveying postal matters.

A movable floor plate 3 is installed between floor substrates 1 and 2 having casters 18 at the corners, and a rear end portion 4a of the movable floor plate 3 is rotatably attached to the floor substrate 2 and a front end thereof is provided. The part 4 is detachable from the floor substrate 1 (an engagement / disengagement mechanism will be described later).

Next, the front fence 7 and the rear fence 8 are vertically fixed on the floor boards 1 and 2, respectively. Further, a side fence 9 is attached between one side 7a, 8a of the front fence 7 and the rear fence 8. The side fence 9 is rotatable about the front fence 7, the rear fence 8 and vertical shafts 11 and 12, respectively, and the center of the side fence 9 is a vertical axis 10.
It is possible to turn inward and bend inward.

A door 13 is attached between the other side 7b, 8b of the front fence 7 and the rear fence 8. The door 13 is a door piece 14 on the front fence 7 side,
It is divided into the door pieces 15 on the rear fence 8 side, and each door piece 14, 15
Are rotatable about the longitudinal axes 16 and 17 of the front and rear fences 7 and 8 respectively. Further, the door piece 14 is the upper and lower door pieces 14.
a and 14b, and the door piece 15 is also a door piece 15a,
It is divided into 15b and is independently rotatable around the vertical axes 16 and 17 (FIGS. 1 to 3).

The floor board 1 has through holes 20, 20 each having a substantially square shape formed in a portion where the movable floor board 2 is placed (FIG. 7).

Further, the engaging / disengaging mechanism, that is, the moving floor plate 3 in the above has the following structure. Guide projections 21 and 2 formed on the lower surface 6 of the movable floor plate 3 are projection pieces 22 and 22 provided with a predetermined gap into which the through holes 20 and 20 can be fitted.
1 is projected respectively. A gap 23 between the protruding pieces 22, 22
Also, the claw 25 that can be hooked on the locking edge 20a of the through hole 20.
The locking piece 24 having the is inserted (FIGS. 8A and 8B).

A square rod 26 along the edge of the front side 4 of the movable floor plate 3 is fixedly passed through the locking pieces 24, 24. The square rod 26 is attached to the movable floor plate 3 so as to be rotatable along its axis. The projection pieces 22 and 22 are tapered, and inclined slopes 22a and 22a are formed (FIGS. 8A and 8B).

On one side 27 of the square rod 26, one side 29 of a square pipe 28 is fitted so as to be slidable in the axial direction.
Further, the operation rod 3 is provided on the other side 29a of the square pipe 28.
One side 31 of 0 is connected and the other side 31 of the operating rod 30
The a penetrates the frame 33 on the other side 5a of the moving floor plate 3. Further, the end portion of the other side 31a of the operating rod 30 is bent to form a grip portion 33 (FIG. 6).

A square pipe is provided as a guide projection 21 between the edge of the other side 29a of the square pipe 28 and the frame 33.
A spring 35 for biasing the side is interposed. On the other side 27a of the square rod 26, a spring 38 for biasing the square rod 26 so as to rotate in the direction of the arrow 36 in FIG. 5B is interposed (FIG. 6). A stopper 39 is fixed to the square rod 26 so as to prevent the square rod 26 from rotating in the direction of the arrow 37 in FIG. 5B.

The carriage 42 is constructed as described above (FIGS. 1 to 3). Further, the floor boards 1 and 2 and the movable floor board 3 constitute a floor board 40 (FIG. 5).

Next, based on the above embodiment, the floor board 4 of the present invention
The operation of 0, that is, the use of the carriage 42 will be described.

When the carriage 42 is used, the door 13
Open and close to load and unload luggage (Fig. 4 (a)). At this time, since the locking pieces 24, 24 of the moving floor plate 3 are hooked on the edge 20a of the through hole 20 of the floor substrate 1, the load is moved.
Even if it is not on the upper side, there is no risk that the moving floor plate will come off (FIG. 9 (a)). Further, since the grip portion 32 is housed in the moving floor board 3, it does not interfere with the use of the carriage 42.

When the carriage 42 is not used, the door pieces 14 and 15 are rotated so as to contact the outside of the front fence 7 and the outside of the rear fence 8 respectively (FIGS. 4A and 4B). Moving floorboard 3
Is rotated (FIG. 4 (b)).

At this time, first, the grip portion 32 of the moving floor plate 3
Is gripped, the grip portion 32 is pulled out against the spring 35 (FIG. 6, chain line 32a), and the grip portion 32 is gripped and rotated in the direction of arrow 37 against the spring 38.
By this rotation, the square rod 26 also rotates, and the hook 25 of the locking piece 24 and the edge 20a of the through hole 20 are disengaged by the rotation of the connected locking piece 24 (FIG. 9B). . Subsequently, while holding the grip portion 32, the movable floor plate 3 is rotated around the axis on the floor substrate 2 side in the direction of the arrow 44 (FIG. 4) to move the through hole 20.
Remove the locking piece 24 and the guide protrusions 21, 21 from the
(C)), and further rotates to bring the moving floor plate 3 into contact with the inside of the rear fence 8 (FIG. 4 (c)). As described above, the moving floor board 3
The unlocking and folding operations can be performed by a series of operations while holding the grip portion 32. At this time, when the grip portion 32 is released, the grip portion 32 is rotated in the direction of the arrow 36 by the spring 38 (FIG. 9C), and the grip portion 32 is pulled toward the moving floor plate 3 side by the spring 35 (FIG. 9C). 6, solid line 33).

Subsequently, the side fence 9 is attached to the shafts 10, 11, 12
Can be folded inward and the carriage can be folded so that the floor boards 1 and 2 come close to each other (Fig. 4 (d)).
(E)).

In addition, when the carriage 42 is opened from the folded state to the used state, the operations from the above are performed in reverse (FIGS. 4E to 4A).

At this time, if the movable floor plate 3 is rotated and brought into contact with the floor substrate 1, it is guided by the inclined side surfaces 22a of the guide protrusions 21 and 21 without operating the separate grip portion 32, and guides. The protrusion 21 and the locking piece 24 are easily inserted into the through hole 20 (FIG. 9 (d)), and the locking piece 24 is rotated against the spring 38 while the locking edge 20a of the through hole 20 is rotated again. (Fig. 9 (a)).

In the above-mentioned embodiment, the structure of the floor board 40 (moving floor board 3, floor boards 1, 2) can be used for a carriage for other constructions (not shown).

[0027]

The present invention has the effect that the movable floor plate can be easily folded and the movable floor plate can be folded by a series of operations with one hand. Further, there is an effect that the movable floor plate can be changed from the folded state to the locked state with the floor substrate only by rotating the movable floor plate. Therefore, there is an effect that the carrying cart can be easily and easily changed from the folded state to the used state.

[Brief description of drawings]

FIG. 1 is a front view of a carrier truck that uses a floor board according to an embodiment of the present invention.

FIG. 2 is a rear view of the same.

3 (a) is a left side view and FIG. 3 (b) is a right side view.

4 (a) to (e) are schematic perspective views showing a folding process of a carriage.

FIG. 5 is an enlarged floorboard of this embodiment, (a) is a bottom view, (b) is a front view, and (c) is a right side view.

FIG. 6 is a partially enlarged bottom view of the front end of the moving floor board used in this embodiment.

FIG. 7 is also an enlarged plan view of the floor substrate.

8A and 8B are views showing guide protrusions and locking pieces of the moving floor plate, FIG. 8A is an enlarged bottom view, and FIG. 8B is an enlarged side view.

9A to 9D are partial vertical cross-sectional views showing the operation of the guide protrusion, the locking piece, and the through hole.

[Explanation of symbols]

 1 floor board 2 floor board 3 moving floor board 6 lower surface of moving floor board 7 front fence 8 rear fence 9 side fence 13 door 18 caster 20 through hole 20a locking edge 21 guide projection 24 locking projection 40 floor board 42 trolley for transportation

Claims (3)

[Claims] 1. A floor board comprising two floor boards with casters and a movable floor board installed between the floor boards. One floor board and one side of the movable floor board are rotatably connected to each other, and the other floor board is provided. In a floor plate for a trolley in which a base plate and the other side of the moving floor plate are configured to be detachable from each other, two through holes having locking edges are formed in the other floor substrate, and the lower surface of the moving floor plate is Guide protrusions that can be fitted into the through holes are respectively provided at positions corresponding to the through holes, and locking pieces that can be fitted into the through holes and can be locked to the locking edges are provided in parallel with the guide projections. A floor plate of a carriage for transporting, characterized in that the both locking pieces are interlocked. 2. The guide projection is composed of two parallel projection pieces having a predetermined gap, the projection pieces are tapered, and a locking piece is inserted into the gap. Floor plate of a trolley for transportation. 3. Each locking piece corresponding to the through hole is connected by a square rod, the square rod is biased in a direction to lock the locking piece to the locking edge, and one end of the square rod is fixed to the floor. 2. The floor plate of a carrier truck according to claim 1, wherein the moving plate is projected outside and a grip portion is formed in the portion, and the grip portion is biased so as to be housed in the floor moving plate.