JP3899243B2 - Cargo carrier for cargo trucks - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a load carrier suitable for loading a load into a luggage compartment of a truck.
[0002]
[Background]
In the case of a large quantity or a heavy article, the cargo is loaded into the cargo room of the lorry, and the pallet is loaded with a forklift.
By the way, in the case of a normal large lorry, since the cargo compartment is long, the entire length of the side of the cargo compartment is opened, and it can be carried not only from the rear but also from the side. In the case where airtightness is required, such as a cargo compartment of a freezer / refrigerated vehicle, it is carried in only from the rear.
Then, after the pallet is placed in the cargo compartment by the forklift, the pallet is manually transported to the back of the cargo compartment, and the work for securing the placement space for the next pallet is repeatedly performed to carry in the cargo.
[0003]
However, it is very inefficient to manually transport a pallet with a load on it because it is very hard and time consuming.
In addition, the pallet may be lifted and transported using a lifter. However, the cargo storage floor of the refrigerated refrigerator truck is provided with a keystone with a number of grooves for passing cold air. It was very difficult to convey because it could fit into or get caught in the groove.
[0004]
[Problems to be solved by the invention]
Therefore, the present invention has an object to improve efficiency and ease of carrying in and out of a luggage of a refrigerator-freezer car equipped with a keystone, and an object of the present invention is to provide a luggage carrier that solves this problem.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention employs the following technical means.
[0006]
As shown in FIGS. 1 to 6, the technical means is a load carrier A that is inserted into a lift insertion space P <b> 1 in a loading pallet P and lifts and conveys the pallet P. A mounting portion 2 that moves up and down with respect to the carrier body 1 via the vertical movement means U, a roller 3 that rolls on the upper surface of the convex portion B1 of the keystone B that constitutes the floor surface of the cargo compartment of the lorry, and the keystone B And a guide roller 4 that fits into the groove B2, and the pallet P is lifted by being inserted into the insertion space P1 and raised to place the pallet P in a state where the pallet P can be transported, and the placement unit 2 is lowered. Thus, the pallet P is lowered so that it can be extracted from the insertion space P1. (Claim 1)
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The carrier A for carrying goods according to the present invention is used by inserting the right and left two as a pair into the insertion space P1 of the pallet P with an appropriate interval between them. Will be described with reference to FIG.
When inserted, as shown in FIGS. 2 to 5, the roller 3 is placed on the upper surface of the convex portion B1 of the keystone B, and the guide roller 4 is fitted into the groove B2.
Then, as shown in FIG. 6, when the vertical movement means U is operated to raise the placement unit 2, the upper surface 21 of the placement unit 2 comes into contact with the back side of the placement surface P <b> 2 of the pallet P, and the pallet P as it is. Is lifted, and the bottom surface P3 of the pallet P is separated from the top surface of the convex portion B1 of the keystone B.
In this state, the load carrying carrier A is pushed and moved so as to be conveyed along the groove B2 of the keystone B.
[0008]
After the conveyance, when the placing portion 2 is lowered by the vertical movement means U, the bottom surface P4 of the pallet P comes into contact with the top surface of the convex portion B1 of the keystone B as shown in FIGS. The upper surface 21 is separated from the back side of the placement surface P2 of the pallet P, and the pallet P is placed as it is.
In this state, the load carrier A is pulled out and inserted into the next pallet to be operated in the same manner as described above.
The vertical movement means U in the present invention can be achieved by, for example, a well-known jack mechanism (for example, a hydraulic jack or a parallel crank jack using screws) other than the link mechanism as shown in the figure.
[0009]
The load carrying carrier A moves in the luggage compartment due to the rolling of the roller 3, and at this time, it is necessary to regulate the movement of the luggage compartment to the rear side to prevent the fall of the luggage.
In the carrier A for cargo transportation according to the present invention, the guide roller 4 fitted in the groove B2 of the keystone B may collide with the reinforcing plate B3 at the rear end of the groove B2 of the keystone B to restrict further movement. it can.
In this case, since an impact is applied to the guide roller 4, it is considered that the impact due to the impact is not a little.
Therefore, it is preferable to prevent a load drop accident while protecting the guide roller 3 by providing a stopper 5 that hits the reinforcing plate B3 at the rear end of the groove B2 of the keystone B. (Claim 2)
[0010]
【Example】
Hereinafter, an embodiment of a carrier A for cargo transportation according to the present invention will be described in detail with reference to the drawings.
[0011]
The carrier A for cargo transportation includes a carrier main body 1, a mounting portion 2 that moves up and down with respect to the carrier main body 1 through vertical movement means U, and a convex portion of a keystone B that constitutes a floor surface of a cargo compartment of a lorry. A roller 3 that rolls on the upper surface of B1, a guide roller 4 that fits into a groove B2 of the keystone B, and a stopper 5 are included.
[0012]
The carrier body 1 has left and right side walls 11 and 11 connected by a connecting plate 12 and opened rearward in plan view.
The mounting portion 2 is composed of a mounting plate 2A positioned above the carrier body 1 and a support 2B positioned on the lower surface of the mounting plate 2A.
The mounting plate 2A has a plate-like shape having substantially the same width as the carrier main body 1 and substantially the same length as the length of the carrier main body 1 excluding the arrangement space of the operation unit U1 in the vertical movement means U.
The support 2 </ b> B is disposed so as to be able to protrude and retract between the left and right side walls 11, 11 in the carrier body 1, and is connected to the carrier body 1 through a number of connecting rods U <b> 2 in the vertical movement means U.
[0013]
The vertical movement means U uses a link mechanism and operates by interlocking the operation unit U1 and the connecting rod U2.
More specifically, by pivotally supporting the upper and lower sides of the connecting rod U2 to the support body 2B and the carrier body 1, respectively, the support body 2B rises when the connecting rod U2 falls down as shown in FIG. When standing as shown in FIG. 2, the support 2B descends.
The operation unit U1 includes an operation body U3 that moves upside down with respect to the carrier body 1, and an interlocking mechanism U4 disposed between the operation body and the support body 2B.
The operating body U3 is pivotally supported by the carrier body 1 so as to be inverted, and has an engagement hole 61 at the end portion thereof, into which an operating rod 6 for inversion movement can be inserted and removed.
The interlocking mechanism U4 includes three interlocking rods U41, U42, and U43 on the left and right, and is disposed between the operating body U3 and the support body 2B.
The interlocking rod U41 is disposed between the support body 2B and the carrier body 1 with the same configuration as the connecting rod U2, and rotates together with the rotating shaft 7 on the carrier body 1 side.
The interlocking rod U42 is pivotally supported so that the tip thereof rotates integrally with the rotary shaft 7, and the rear end thereof is pivotally supported so as to rotate relative to the tip of the interlocking rod U43.
The interlocking rod U43 is pivotally supported at the rear end thereof so as to be rotatable on the operation body U3.
[0014]
According to the vertical movement means U of this configuration, as shown in FIG. 2, the mounting plate 2A is lowered along with the support body 2B when the operation body U3 is standing.
Then, as shown in FIG. 6, when the operating rod 6 is inserted into the fitting hole 61 from the lowered state of the mounting plate 2A and the operating body U3 is tilted, the interlocking rod U43 moves backward to move the interlocking rod U42 backward. Pull on.
The interlocking rod U42 pulled rearward rotates the rotating shaft 7 while falling, and the rotating interlocking shaft U41 rises due to the rotation of the rotating shaft 7.
When the interlocking rod U41 rises, the support body 2B rises while being pulled backward, and at the same time, the connecting rod U2 that has fallen rises, and maintains the elevated state of the mounting plate 2A as the support body 2B rises. .
By this operation, the upper surface 21 of the mounting portion 2 contacts the back side of the mounting surface P2 of the pallet P, the pallet P is lifted as it is, and the bottom surface P3 of the pallet P is separated from the upper surface of the convex portion B1 of the keystone B. The pallet P is ready to be transported.
[0015]
On the contrary, when lowering the mounting plate 2A, the operation rod 6 is inserted into the fitting hole 61 and the operating body U3 is raised, so that the interlock mechanism U4 and below operate in reverse to the operation described above, and the mounting plate 2A. Descends.
By this operation, the bottom surface P3 of the pallet P comes into contact with the top surface of the convex portion B1 of the keystone B, the top surface 21 of the mounting portion 2 is separated from the back side of the mounting surface P2 of the pallet P, and the pallet P is mounted as it is. The carrier A for cargo transportation can be removed from the insertion space P1.
[0016]
The rollers 3 are rotatably supported on the left side walls 11 of the carrier body 1 (four locations, a total of eight), and the left and right rollers 3 are the upper surfaces of the left and right convex portions B1 of the groove portion B2 of the keystone B. Is riding.
Two guide rollers 4 are pivotally supported on the connecting plate 12 of the carrier body 1 so as to be able to rotate sideways, and the diameter of the guide roller 4 is such that a slight gap is generated between the side wall of the groove and the groove B2. The diameter.
The stopper 5 is located on the rear side of the rear guide roller, and an elastic body 51 (for example, rubber) is disposed at the tip thereof. The elastic body 51 hits the reinforcing plate B3 in the groove B2 of the keystone B. When the shock is eased.
[0017]
In addition, this invention is not limited to the structure illustrated in the said Example, It can implement in the range which does not deviate from the content as described in a claim.
[0018]
【The invention's effect】
As described above, the load carrying carrier of the present invention has the following excellent effects.
[0019]
According to the first aspect of the present invention, the pallet is lifted by the vertical movement means and can be conveyed by rolling the roller, and during the conveyance, the guide roller is fitted in the groove of the keystone to guide the conveyance. As a result, the pallet can be reliably conveyed without causing the roller to escape from the keystone protrusion.
Therefore, it is possible to improve the efficiency and ease of carrying the cargo into and out of the cargo compartment of the refrigerator-freezer car equipped with the keystone.
[0020]
Further, according to the invention of claim 2, in addition to the effect of claim 1, the stopper located behind the guide roller hits the reinforcing portion in the groove portion of the keystone, thereby preventing the drop from the cargo compartment. .
Therefore, the presence of this stopper can prevent a load drop accident while protecting the guide roller.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view showing an example of an embodiment of a load carrier according to the present invention, showing a pallet lowered state.
FIG. 2 is a partially cutaway view of the main part enlarged view of FIG.
3 is a partially cutaway view in the plan view of FIG.
4 is a sectional view taken along line (4)-(4) in FIG. 1;
5 is a sectional view taken along line (5)-(5) in FIG.
6 shows a pallet ascending state in FIG.
[Explanation of symbols]
A: Carrier for carrier conveyance 1: Carrier body 2: Placement part 3: Roller 4: Guide roller 5: Stopper U: Vertical movement means P: Pallet P1: Insertion space B: Keystone B1: Protrusion B2: Groove B3: Reinforcing plate

Claims (2)

A load carrier for inserting and lifting the pallet into the lift insertion space in the loading pallet,
The carrier body,
A placement section that moves up and down relative to the carrier body;
A roller that rolls over the upper surface of the convex part of the keystone that constitutes the floor of the cargo compartment of the lorry,
A guide roller that fits into the keystone groove,
By inserting into the insertion space and raising the placement part, the pallet is lifted and becomes transportable,
A carrier for carrying goods, wherein the pallet is lowered and can be removed from the insertion space by lowering the mounting portion. The carrier for cargo transportation according to claim 1, wherein a fall accident of the cargo is prevented while protecting the guide roller by providing a stopper that hits the reinforcing plate at the rear end of the keystone groove.

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