JP3232534B2 - Truck floor structure using extruded aluminum - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a truck floor structure in which a cargo pallet can be easily slid in a longitudinal direction of a truck bed and a cargo worker or the like is prevented from sliding.

[0002]

2. Description of the Related Art A cargo truck is provided with a carrier on which cargo to be carried is mounted. Recently, the weight of vehicles has been reduced by using lightweight and strong extruded aluminum as a structural material for the cargo bed. Since the extruded aluminum material has a beautiful surface and excellent corrosion resistance, it is suitable for transporting foods, chemicals, etc. in a clean state. When the floor surface of the loading platform made of extruded aluminum material is made easy to slide, it can be loaded at a predetermined position on the loading platform while sliding a loading pallet such as a resin pallet containing luggage, thereby facilitating loading operations. . The fact that the resin pallet or the like is slippery means that the cargo handling worker who moves on the carrier at the same time is also slippery. The loading platform is a narrow space in which various loads are loaded, and is located at a high position above the ground. For this reason, the slippery loading platform floor is a place hatred by the cargo handling worker.

[0003]

As means for preventing the floor of the loading platform from slipping, the floor is roughened by shot blasting. However, on a cargo bed floor surface roughened by shot blasting, the slip of the cargo handling pallet becomes poor, which hinders the cargo handling work. In addition, abrasion occurs in a short period of time due to rubbing with a cargo handling pallet or the like, and the anti-slip function is reduced. The present invention has been devised in order to solve such a problem, and by attaching an extruded aluminum material forming a bed floor surface to a bed longitudinally and intermittently projecting, a resin pallet or the like is provided. It is an object of the present invention to provide a truck floor structure having a function that is inconsistent with slippage prevention and slippage of a cargo handling worker.

[0004]

In order to achieve the object, a truck floor structure according to the present invention comprises a main component member made of extruded aluminum having a locking portion and an engaging portion formed at both ends in a width direction. A floor surface in which a plurality of main components are connected by fitting the locking portion with an engaging portion of an adjacent main component, and a plurality of ridges extending in a longitudinal direction are formed on an upper surface of the main component. The ridges are partly crushed and crushed. Separate top and bottom members can also be used as primary components. When a heat insulating material is interposed between the upper surface member and the lower surface member, the heat flow path between the upper surface member and the lower surface member is shut off, and an insulated floor suitable for a freezer car, a warm car, and the like is obtained. Further, it is preferable that a sealing material is interposed between the engaging portion and the engaging portion of the adjacent main component member so that no gap is generated in the fitting portion. As the sealing material, rubber, soft synthetic resin, or the like having the same length as the main constituent members is used.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a truck floor structure according to the present invention, an aluminum extruded section having a cross-sectional shape shown in FIG. The main constituent member 10 is, for example, 250 to 40
It has a width of 0 mm and a length corresponding to the floor of the truck. The main component 10 is connected to the longitudinal direction of the track (FIG. 2).
The bed surface is formed by laying out 6 to 10 main components 10 along. Main components 10
The upper surface 12 and the lower surface 13 are connected by ribs 11, 11,... Provided at predetermined intervals as shown in FIG. The weight is reduced by providing a plurality of cavities 14 between them. The ribs 11, 11,... Also have the function of reinforcing the main constituent member 10.

[0006] On the upper surface portion 12, ridges 21 having a height of about 0.3 to 1.0 mm extending in the longitudinal direction of the main constituent member 10 are formed at intervals of 5 to 10 mm in the width direction. Ridge 21
It is preferable that the pallet has a substantially semicircular cross-section in order to make the pallet for cargo handling such as a resin pallet containing the luggage easy to slide. By attaching the ridge 21, the sliding of the resin pallet or the like is improved, but the cargo handling worker may also slide. Therefore, a portion of the ridge 21 is crushed by knurling or the like to form a crushed portion 22 as shown in FIG. The crushing part 22 is about 1 m in the length direction of the ridge 21.
The protrusions 21 are formed at a length of about m and a pitch of 5 to 10 mm. By forming such crushed portions 22, 22,... When the cargo handling worker works on the carrier, the shoe sole is elastically deformed and meshes with the crushed portions 22, 22,. This prevents the cargo handling worker from slipping. On the other hand, since the pallet for cargo handling has a large installation area, the ridges 21, 21 irrespective of the crushed parts 22, 22,.
・ ・ It is in contact with the top surface and is kept in a slippery state.

[0007] The crushing portions 22, 22,...
, 21, ..., but the ribs 11,1
It is also possible to attach the crushing parts 22, 22,... Only to the ridges 21, 21,. Rib 11,
When the ridges 21, 21... On the 11... Are crushed to form the crushed portions 22, 22,. In addition, the crushing part 22,
.. provided with ridges 21 and 21 and crushed portions 22 and 2
Because the ridges 21, 21, ... without 2 ... are in parallel,
For example, the corners of the resin pallet are crushed parts 22, 22, ...
To prevent the resin pallet from slipping. Crushed parts 22, 2 on all ridges 21, 21, ...
In order to prevent the corners of the resin pallet from being caught on the crushed portions 22, 22.
Between the adjacent ridges 21, 21,.
It is preferable to change the formation pitch and / or period of the. By freely changing the distribution and density of the crushed portions 22, the slipperiness and the slip prevention function can be freely adjusted.

The main constituent member 10 has a locking portion 30 and an engaging portion 40 on both sides. By engaging the engaging portion 40 or the engaging portion 30 of the main component member 10 adjacent to the engaging portion 30 or the engaging portion 40, the plurality of main component members 10, 10,... As shown in FIG. 1B, the locking portion 30 includes a protrusion 31 extending from the upper surface 12.
And an insertion portion 32 which is curved and extends from the lower side of the upper surface portion 12.
It has. A stopper 33 is provided below the end surface of the protrusion 31.
The stopper 34 is formed in the insertion portion 32 at a position facing the stopper 33. Stopper 3
A portion between the projection 31 and the insertion portion 32 on the inner side of the portions 3 and 34 serves as a sealing material accommodation space 35 extending over the entire length of the main constituent member 10. Further, a slightly curved locking projection 36 projects from the lower surface of the upper surface portion 12 inside the insertion portion 32.

The engaging portion 40 is formed with a projection 42 having an end surface 41 for pressing the sealing material 50 (FIG. 4).
The protrusion 42 has a curved lower surface, and the upper surface 12
A curved insertion space 44 into which the insertion portion 32 of the locking portion 30 is inserted is formed between the receiving portion 43 and the receiving portion 43 protruding from the lower surface of the locking portion 30. At the tip of the receiving portion 43, two protrusions 45, 46 are provided.
Are formed. The protrusions 45 and 46 have a slightly curved shape, and a space between the protrusions 45 and 46 is a curved protrusion accommodating portion 47 into which the locking protrusion 36 of the locking portion 30 fits. In connecting the adjacent main components 10, 10, a sealing material 50 having a length equal to the entire length of the main components 10, 10 is attached to the locking portion 30. As shown in FIG. 4, the sealing material 50 is attached to the locking portion 30 such that the head 51 is inserted into the sealing material accommodation space 35 and the flat base 52 is disposed on the side surface.

The locking portion 30 of one main component 10 to which the sealing material 50 is attached is applied to the engaging portion 40 of the adjacent main component 10. Then, the other main component 1 is inserted so that the insertion portion 32 fits into the insertion space 44.
One main component 10 is rotated with respect to zero. With the rotation, the locking projection 36 of one main component 10 fits into the projection accommodating portion 47 of the other main component 10. As a result, as shown in FIG.
10 are connected. At this time, the insertion portion 32 and the insertion space 44 function as guides for rotational fitting. The slightly curved locking projections 36 and projection housing portions 47 firmly connect the two main constituent members 10, 10 and generate a force for pressing the end surface 41 of the engaging portion 40 against the base 52 of the sealing material 50. Let it. Therefore, the adjacent main components 10, 1
0 is firmly connected via an airtight connection. In order to strengthen this connection, the distal end portion of the insertion portion 32, the deep portion of the insertion space 44, the locking projection 36, and the curved shape of the projection accommodating portion 47 are formed in a round shape centered on the upper end corner of the end face 41. Is preferred.

As described above, the adjacent main constituent members 10, 1
Since 0 is air-tightly connected, no foreign matter or moisture enters under the floor from the connecting portion or the connecting portion, and a clean surface is maintained. On the other hand, if the connection is performed without using the sealing material 50, it is inevitable that a gap that causes intrusion of foreign matter, moisture, and the like occurs in the connection portion. When foreign matter such as iron powder enters the gap, it reacts with moisture to change color and damage the clean surface peculiar to aluminum. The main constituent members 10, 10 are connected and laid in a number corresponding to the width of the truck bed to form a floor surface of the bed. However, as the main constituent members located on both sides, an extruded aluminum member without the locking portion 30 or the engaging portion 40 is used. The constructed loading floor will be rich in cleanliness utilizing the beautiful surface unique to aluminum. Also,
Since the ridges 21, 21,... With the crushed portions 22, 22,... Are provided on the floor surface, the cargo handling pallet is easy to slide, and the cargo handling work is easy and safe without the cargo handling worker slipping. High floor.

As the main constituent members 10, the upper surface portion 12 and the lower surface portion 13 are replaced by an integrated member connected by ribs 11, 11,..., And as shown in FIG. It is also possible to use In this case, a plurality of protrusions 61, 61,... Are formed on the lower surface of the upper surface member 60, and a plurality of protrusions 71, 71,.
The upper surface member 60 and the lower surface member 70 are connected by a heat insulating material 80 fitted to the protrusions 61, 61,... And the protrusions 71, 71,. In this case, if the surfaces of the projections 61 and 71 and the surface of the heat insulating material 80 are notched, they are engaged with each other when they are fitted, and the upper surface member 60 and the lower surface member 70 are hardly detached. As the heat insulating material 80, for example, a nylon-based hard resin is used. The heat insulating material 80 interposed between the upper surface member 60 and the lower surface member 70 is provided at an interval of 30 to 50 mm in the width direction, depending on a load applied to the floor surface. With the heat insulating material 80 interposed, the heat flow path is cut off between the upper surface member 60 and the lower surface member 70, and the heat insulating floor is suitable for a freezing car, a warm car, and the like. The upper surface member 60 has a plurality of ridges 2 provided with the crushed portions 22, 22,... As described in FIG.
Are provided to ensure that the cargo handling pallet slides and the cargo handling worker is prevented from slipping. Also,
The adjacent upper surface members 60, 60 are not shown in detail in FIG. 5, but are connected by the same connection structure as in FIG.
The lower surface members 70, 70 are connected to each other by a fitting joint, and are fixed to the beam on the track body side by a tapping screw 72. In addition, when a heat insulating material such as urethane foam is interposed in the space between the upper surface member 60 and the lower surface member 70, the heat insulating effect is further improved, and the floor surface strength is also improved.

[0013]

As described above, in the present invention, a plurality of ridges extending in the longitudinal direction of the cargo bed are provided on the upper surface of the main constituent members constituting the truck floor, and crushed portions are formed on these ridges. As a result, the cargo handling pallet containing the luggage slides, but the cargo handling worker has a non-slip floor surface. Therefore, while the cargo handling work becomes easy,
The safety of cargo handling workers is also achieved.

[Brief description of the drawings]

FIG. 1 is an overall sectional view (a), a sectional view of a locking part (b), and a sectional view of an engaging part made of an extruded aluminum member used for a truck floor according to the present invention. (C)

FIG. 2 is a schematic perspective view of a truck that connects a plurality of main components and is spread on a carrier.

FIG. 3 is a partial perspective view of a main component having a plurality of ridges provided with a crushed portion provided on an upper surface portion.

FIG. 4 is a cross-sectional view of a connecting portion in which a locking portion and an engaging portion are engaged.

Fig. 5 Floor with heat insulation structure

[Explanation of symbols]

10: Main components 11: Ribs 12: Upper surface
13: Lower surface part 14: Cavity part 21: Ridge 22: Crush part 30: Lock part 31: Projection part 32: Insertion part
33, 34: stopper 35: sealing material accommodation space 36: locking projection 40: engagement part 41: end face 42: projection part 4
3: receiving part 44: insertion space 45, 46: projection
47: Projection accommodation section 50: Seal material 51: Head 52: Base 60: Upper surface member 61: Projection 70: Lower surface member 71: Projection 72: Tapping screw 80: Heat insulating material

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasuyuki Nakadegawa 2-2-2-20 Higashishinagawa, Shinagawa-ku, Tokyo Inside Nihon Light Metal Co., Ltd. (72) Inventor Takamitsu Sakai 3034 Kamiyori Uenohara, Atsugi City, Kanagawa Prefecture Japan Full Half (56) References JP-A-8-253175 (JP, A) JP-A 57-151178 (JP, U) JP-A 49-2014 (JP, U) JP-A 62-185182 (JP, A) U) Hikaru Hira-1886 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B62D 33/02 B62D 33/04

Claims (3)

(57) [Claims] 1. A plurality of engaging members of an aluminum extruded profile having engaging portions and engaging portions formed at both ends in a width direction are engaged with engaging portions of adjacent main members to form a plurality of engaging members. A floor surface connecting the main constituent members, a plurality of ridges extending in the longitudinal direction are formed on the upper surface of the main constituent members, and a part of these ridges is a crushed portion that is crushed. Floor structure for trucks using extruded aluminum bars. 2. A main component member is constituted by a separate upper surface member and lower surface member, and a locking portion and an engagement portion are formed at both ends in the width direction of the upper surface member, and between the upper surface member and the lower surface member. The floor structure for a truck using the extruded aluminum material according to claim 1, wherein a heat insulating material is interposed. 3. The fitting portion between the engaging portion of one main component and the engaging portion of the other main component adjacent thereto is sealed with a sealing material over the entire length of the main component in the longitudinal direction. Or the floor structure for a truck according to 2.