JP5990137B2 - Carriage truck with frame - Google Patents

Description

  The present invention relates to a transport cart that can be used as a transport vehicle in which the side of the loading platform is surrounded by a fence when necessary, and can be used as a normal transport vehicle by folding the fence when not in use.

Conventionally, for example, as a carriage with a folding frame of JP2013-1259A,
A loading platform having a plurality of casters on the bottom surface and having an upper surface on which a load can be placed; a handle that is erected on the upper surface of the loading platform when used; A structure is disclosed that includes a fence that is erected on the cargo bed and that can be folded when stored.
However, the fences that are the left and right side plates are pivotally attached to the handle at the base end side, and the front is a free end. In the above configuration, the left and right side fences are fixed to the loading platform when the fence is used. A fixing tool is attached to the loading platform surface, and a receiving portion for receiving the fixing tool needs to be formed on the cargo bed surface.
Therefore, when folding the fence, it is necessary to arrange the fixtures so that they do not overlap, and the cargo bed needs to be provided with a receiving portion corresponding to the fixtures, which makes the structure complicated. there were.
Also, since the fence is assumed to be stored by tilting the handle after folding, the lower frame provided on the fence cannot be placed at a position in contact with the loading platform, and a gap is created between the lower frame and the loading platform. Therefore, there was a problem that there was a risk of dissipating the load inside.
In addition, the present applicant has proposed a mesh-type cargo handling pallet disclosed in Japanese Patent Application Laid-Open No. 2010-215275, but this is difficult to apply to a transport cart because the mesh panel is hooked on pillars provided at the four corners of the cargo bed. Met.

JP 2013-1259 A JP 2010-215275 A

  The problem to be solved by the present invention is that the lower frame of the side frame can be arranged at a position in contact with the loading platform, and the side fence at the time of deployment can be restrained only by the fixing bracket provided on the loading platform, An object of the present invention is to provide a frame-equipped transport cart that can be used as a normal transport cart as it is when the fence is folded.

In order to achieve the above object, the present invention provides a first aspect of the present invention.
A pair of columns of the transport cart handle, first surrounding bed of the right and left sides of the transport carriage, set kicking with foldably a proximal end of the second side frame, respectively, said first, at the tip of the second side frame in frame with transport truck that having a front frame that surrounds the front of the loading platform,
The first and second side frames are provided with a lower frame having a bottom side in contact with the upper surface of the cargo bed,
The loading platform is provided with a through-hole that vertically penetrates the loading platform at a location where the bottom portion contacts, a shaft portion that is inserted through the through-hole, and a protruding portion that projects downward from the bottom surface of the loading platform of the shaft portion. Provided with a positioning member composed of a coil spring that can be moved in and out of the loading platform and biased downward, and a latching piece that latches the bottom side from above at the upper part of the shaft part,
A recess is provided on the upper surface of the loading platform to store the latching piece when the shaft portion is submerged in the loading platform, so that the upper end of the positioning member does not protrude on the loading platform surface during storage. .
In the invention of claim 2,
The handle column and the first and second side frames, and the first and second side frames and the front frame are detachable including a cylindrical body and a shaft portion that is pivotably fitted to the cylindrical body. A pivoting portion is provided.
In the invention of claim 3,
The front frame is provided with a frame latch for restraining the first and second side frames together with the front frame when folded.
The frame body latch has a hook-shaped base end latching portion that has a base end that is vertically separated and is latched on the inner frame of the front frame, and extends from each base end latching portion to the outside of the front frame. Coil springs are respectively provided through a pair of arc portions that are hooked on the frame, and are folded back from the coil springs toward the base end hook portion to the outer frames 31 of the first and second side frames when folded. It has the groove part which can be latched, and has a front-end | tip latching part connected with a front-end | tip, It is characterized by the above-mentioned.

The carriage with frame of the present invention uses a positioning member provided on the loading platform to position the left and right first and second side frames on the loading platform at the unfolded position. The frame can be arranged at a position in contact with the loading platform surface, and there is no fear that the load will be dissipated from the gap between the loading platform and the side frame.
Further, when the side frame is folded, the positioning member does not protrude on the loading platform, so that the side frame and the front frame can be used in the same manner as a normal carriage. .

It is a perspective view which shows the front frame and side frame of a conveyance truck with a frame. It is a perspective view which shows the attachment-like body of the 1st, 2nd side frame connected with the conveyance truck with a frame 2 series, and a front frame. It is a perspective view of the conveyance cart with a frame of the state which connected the front frame in the state where the 1st and 2nd side frame was developed. It is a perspective view of the conveyance cart with a frame of the state which folded the 1st, 2nd side frame and front frame. It is the same side view. It is a principal part enlarged view which shows the latching piece which restrains a 1st, 2nd side frame in a deployment position, and the latching state of a 1st latching tool. (A) is a disassembled perspective view of a positioning member, (b) is sectional drawing explaining the usage method of the positioning member provided in the loading platform. It is a perspective view of a 2nd latch. It is a principal part perspective view explaining the latching state using the 2nd latching tool.

  Hereinafter, a preferred embodiment in the case of using the frame-equipped transport cart of the present invention as an emergency transport cart painted red will be described with reference to the drawings.

FIG. 1 to FIG. 5 show a framed carriage 1, and the framed carriage 1 includes first and second frames that surround the left and right side surfaces of the carrier 2 with a pair of columns h 1 and h 2 of a handle H. The base ends of the side frames 3 and 4 are foldably attached, and the front frame 5 surrounding the front surface of the loading platform 2 can be attached to the tips of the first and second side frames 3 and 4.
In the illustrated example, the first and second side frames 3 and 4 are made in a double series, and each of the first and second side frames 3 and 4 and the front frame 5 have substantially the same width as that between the columns h1 and h2 of the handle H. It is set.

The transport cart 1 rotatably supports casters that serve as wheels 6 at the four corners of the bottom surface of the loading platform 2, and the wheels 6 can be braked on the rear wheel side by a braking portion in this embodiment. However, in the present invention, the wheel braking mechanism may or may not be provided.
Further, although the handle H is illustrated as being fixed to the loading platform 2, the handle H may be foldable.

[First and second side frames]
The first and second side frames 3 and 4 are for enclosing the left and right side surfaces of the loading platform 2 respectively. In the illustrated example, the first and second side frames 3 and 4 include a mesh-shaped inner frame 32 that intersects vertically and horizontally in a substantially square outer frame 31. However, the inner frame 32 may be provided with only a vertical frame or a horizontal frame, and the outer frame 31 may be a rectangle.

The base-end-side vertical sides 35 of the outer frames 31 of the first and second side frames 3 and 4 are pivotally attached to brackets B fixed to the left and right columns h1 and h2 of the handle H, respectively.
In the present embodiment, as the first pivotally attached portion P1, between the bracket B and the base ends of the first and second side frames 3 and 4, a tube that fits the shaft portion 12 and the shaft portion so as to be pivotable. One and the other of the part 11 are provided.
That is, in the illustrated example, the vertical cylindrical portion 11 is fixed to the distal end of the bracket B, and the outer frame 31 is provided on the proximal side vertical side portion 35 of the first and second side frames 3 and 4. A shaft portion 12 is provided so as to extend downward at a position slightly spaced from the shaft portion and to be fitted into the cylindrical portion 11.

  Accordingly, the shaft portion 12 of the first and second side frames 3 and 4 is inserted from above into the cylindrical portion 11 on the support column h1 and h2 side of the handle H, so that the shaft portion 12 serves as a fulcrum. A first pivoting portion P1 that pivots the second side frames 3 and 4 inwardly to a folding position parallel to the handle H, and to a deployment position surrounding the side surface of the cargo bed by rotating outward. (See FIGS. 3 and 4).

Each of the first and second side frames 3 and 4 may be one by one, or a plurality of them may be connected.
In the present embodiment, two first and second side frames 3 and 4 having the same structure are used, respectively, which can be applied when the loading platform 2 is long forward.
The first and second side frames 3 and 4 are provided with a cylindrical portion 11 'on the distal side vertical side portion 36 of the outer frame 31 of the side frame close to the handle H as the second pivoting portion P2. 2, see FIG.
In addition, a shaft portion 12 that can be inserted into the cylindrical portion 11 ′ is provided on a base side vertical side portion 35 of first and second side frames (referred to as 3 ′ and 4 ′ for convenience of description) arranged on the front side. 'Is formed.
Similarly, a cylindrical portion 11 ″ is provided on the front end side vertical side portion 36 of the first and second side surface frames 3 ′ and 4 ′ on the front side.

Accordingly, the first and second side frames 3, 3 ′, 4 and 4 ′ are each provided with the shaft portions 12 and 12 ′ on one side and the cylindrical portions 11 ′ and 11 ″ on the other side, and the shaft portions 12 and 12 are provided. Since 'and cylinder parts 11' and 11 "have the same shape, by preparing side frames with the same configuration, they can be used for both the left and right and front and rear side frames when connected. Is expensive.
The first and second side frames 3, 3 ′, 4, 4 ′ are arranged closer to the front side of the cylindrical portion 11 ′ of the side frame 3, 4 near the handle when connecting a plurality of side frames continuously. The shaft part 12 'on the base end side of the side frame 3'4' is inserted and both are pivotally connected.

In use, the first and second side frames 3, 4 (3 ′, 4 ′) are developed in parallel along the left and right side edges of the loading platform 2.
Then, the first and second side frames 3, 4 (3 ′, 4 ′) are positioned by the positioning member 40 at the deployed position.
In the present embodiment, the front side of the first and second side frames 3 ′ and 4 ′ on the front side is restrained by the positioning member 40 and positioned.

In the present embodiment, the bottom side portion 33 which is the bottom side of each of the outer frames 31 of the first and second side surface frames 3 ′ and 4 ′ is set so as to be in a position (height) substantially in contact with the upper surface of the loading platform 2. And developed substantially in parallel along the left and right peripheral edges of the loading platform 2.
In the illustrated example, the bottom side portion 33 is formed in series along the bottom side of the outer frame 31, but only a portion that is hooked to the positioning member 40 may be provided in contact with the upper surface of the loading platform 2.

As shown in FIG. 1 and FIGS. 6 to 7, the positioning member 40 is attached to the through hole 22 in the hollow portion 21 formed along the left and right side edges on the front surface side of the loading platform 2 so as to be able to appear and retract. .
That is, as clearly shown in FIG. 7, the positioning member 40 has a shaft portion 41 that penetrates the loading platform 2 and is biased downward and can be moved in and out, and extends outward at an upper portion of the shaft portion 41 and extends to the bottom portion 33. And an engaging piece 42 having an arcuate engaging portion 42a for engaging the pipe from above.

  The shaft portion 41 of the positioning member 40 is inserted through the through hole 22 from above, and the lower portion protrudes downward from the bottom surface of the loading platform 2. A coil spring 44 is fitted into the protruding portion, and the coil spring 44 is inserted. The shaft portion 41 is fixed with a nut 45 through a washer 43 that receives the lower end of the load, and the coil spring 44 is interposed between the bottom surface of the loading platform 2 and the washer 43.

  As a result, when the lower end of the shaft portion 41 is pushed up while compressing the coil spring 44, the latching piece 42 at the upper end of the shaft portion 41 is lifted as shown by the dotted line in FIG. The first and second side frames 3 ′ and 4 ′ are displaced upward beyond the pipe of the bottom side 33 of the outer frame 31, and the engaging portion 42 a of the latching piece 42 is externally fitted to the pipe of the bottom side 33. When lowered, the outer frame 31 is restrained via the bottom 33 by the urging force of the coil spring 44, and the first and second side frames 3 ′ (3) and 4 ′ (4) are placed on the loading platform 2. It can be positioned at positions along the left and right side edges (see FIG. 3).

When removing, the shaft 41 may be raised in the same manner to remove the pipe.
The positioning member 40 is preferably disposed in front of the loading platform 2, but may be in the middle position, and may be provided along the side edge without being limited to a pair of left and right.
As described above, the cylindrical portion 11 ″ protrudes from the distal ends of the first and second side frames 3 ′ and 4 ′ positioned as described above.

Next, the front frame 5 surrounds the front surfaces of the left and right first and second side surface frames 3 ′ and 4 ′ developed in parallel, and a mesh-shaped inner frame is formed in an outer frame 51 formed of a rectangular frame. The left and right vertical side portions 55 and 56 of the outer frame 51 are provided with shaft portions 53 that align with the cylindrical portions 11 ″ of the first and second side frames 3 ′ and 4 ′. The third pivot point P3 is used.
Therefore, the front frame 5 is hooked on the first and second side frames 3 ′ and 4 ′ positioned in the unfolded posture on the loading platform 2 by hooking the shaft portion 53 to the cylindrical portion 11 ″ at the tip. The loading platform 2 can be surrounded in three directions.
Further, by removing one shaft portion 52, the front frame 5 can be used as an open / close door with the other third pivoting portion P3 as a fulcrum.
The rear can be surrounded by a handle H and a back plate 7 spanned between the handles H1 and h2 of the handle H. However, if necessary, a separate back frame may be attached to the front or back of the handle H ( Not shown).

Next, the first and second side frames 3, 3 ′, 4, 4 ′ in the deployed posture can be folded in parallel with the handle H.
That is, the front frame 5 is first removed from the unfolded state of FIG. That is, the front frame 5 is separated by removing the shaft portion 52 of the front frame 5 from the cylindrical portion 11 ″.
Next, the first and second side frames 3 and 4 are first. As shown in FIG. 4, it can be folded in parallel with the handle H by pivoting the shaft portions 12, 12 ′ of the second pivot points P 1, P 2 around the fulcrum and folding them.
Then, the front frame 5 is overlapped from the outside, and the folded first and second side frames 3, 3 ′, 4, 4 ′ and the front frame 5 are hooked by the frame hooks 8.

  As shown in FIG. 8, the frame body latching tool 8 has a hook-like base end hooking portion 81 that has a base end that is vertically separated and hooked on the mesh-like inner frame 52 of the front frame 5. Coil springs 83 are respectively provided via a pair of arc portions 82 extending from the base end hooking portions 81 and hooked to the left and right vertical side portions 55 and 56 of the outer frame 55 of the front frame 5. And has a groove 84a that can be hooked on the base side vertical side 35 of the outer frame 31 of the first and second side face frames 3 and 4 when folded from the base end hook part 81 side. It consists of a tip hooking portion 84 connected at the tip.

Accordingly, as illustrated in FIG. 9, the frame latch 8 is latched to the inner frame 56 of the front frame 5 of the front end latch 81, and the leading latch 84 is a biasing force of the coil spring 83. The first and second side frames 3 and 4 in the folded state are hooked to the base side vertical side portions 35 of the folded first and second side frames 3 and 4.
As a result, the front frame 5 and the folded first and second side frames 3 and 4 are integrally engaged by the frame body stopper 8, so that the folded posture can be maintained.

And since the folded front frame 5 and the first and second side frames 3, 3 ', 4, 4' are housed together on the handle H side of the loading platform 2, they are stored on the empty loading platform 2. It can be used as a loading platform for transportation.
Moreover, in the said Example, although the case where the conveyance cart with a frame was painted in red and used as an emergency conveyance cart was used, in this invention, it may be used as a regular conveyance cart with a frame. .
In addition, the design of the present invention can be modified in various ways without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Carriage truck with a frame 2 Loading platform 3, 4 1st, 2nd side frame 6 Wheel 7 Back board 8 Frame body latching tool 11 Tube part 12 Shaft part 21 Recessed part 22 Through-hole 31 Outer frame 32 Inner frame 33 Bottom part 35 Base end side vertical side portion 36 Front end side vertical piece portion 40 Positioning member 41 Shaft portion 42 Engagement piece 42a engaging portion 43 Washer 44 Coil spring 45 Nut 51 Outer frame 52 Inner frame 55, 56 Left and right vertical side portions B Bracket P1 ~ P3 1st to 3rd pivot points

Claims (3)

A pair of columns of the transport cart handle, first surrounding bed of the right and left sides of the transport carriage, set kicking with foldably a proximal end of the second side frame, respectively, said first, at the tip of the second side frame in frame with transport truck that having a front frame that surrounds the front of the loading platform,
The first and second side frames are provided with a lower frame having a bottom side in contact with the upper surface of the cargo bed,
The loading platform is provided with a through-hole that vertically penetrates the loading platform at a location where the bottom portion contacts, a shaft portion that is inserted through the through-hole, and a protruding portion that projects downward from the bottom surface of the loading platform of the shaft portion. Provided with a positioning member composed of a coil spring that can be moved in and out of the loading platform and biased downward, and a latching piece that latches the bottom side from above at the upper part of the shaft part,
A recess is provided on the upper surface of the loading platform to store the latching piece when the shaft portion is submerged in the loading platform, so that the upper end of the positioning member does not protrude on the loading platform surface during storage. A transport cart with a frame.   A detachable pivot comprising a cylindrical body and a shaft portion pivotably fitted to the cylindrical body between the handle column and the first and second side frames, the first and second side frames, and the front frame. The carrying cart with a frame according to claim 1, further comprising a landing portion. The front frame is provided with a frame latch for restraining the first and second side frames together with the front frame when folded.
The frame body latch has a hook-shaped base end latching portion that has a base end that is vertically separated and is latched on the inner frame of the front frame, and extends from each base end latching portion to the outside of the front frame. Coil springs are respectively provided through a pair of arc portions that are hooked on the frame, and are folded back from the coil springs toward the base end hook portion to the outer frames 31 of the first and second side frames when folded. The frame-equipped transport cart according to claim 1, further comprising a front-end hooking portion that has a groove portion that can be hooked and is connected at the front end.

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