JPH1111206A - Truck deck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent wheels of a cage car from entering the clearance between floor frames and also intend reduction in weight and manufacturing cost. SOLUTION: In a truck deck in which a floor frame 6 is installed on the upper surface of the chassis frame 22 of a truck through a joist frame 23 and a belt 11 carrying surface is stretched on the upper surface of the floor frame 6, plural floor frames 6 long in right/left direction are installed in the belt 11 stretching direction at nearly equal interval.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a truck bed for loading and unloading articles on the upper surface of a belt which is slidably stretched in the front-rear direction.

[0002]

Conventionally, a floor frame is extended in a belt extending direction, and a plurality of floor frames are attached at substantially equal intervals in a lateral width direction of the belt, and the belt is supported by each floor frame. There is a problem in that the cart wheel containing the luggage is placed on the upper surface of the belt, so that the wheel of the cart pinches the belt that has entered between the floor frames. It is necessary to be formed small, and there is a problem that it is not easy to reduce the weight and the manufacturing cost.

[0003]

SUMMARY OF THE INVENTION The present invention is directed to a truck carrier having a floor frame provided on a chassis frame upper surface of a truck via a joist frame and a belt conveying surface stretched on the upper surface of the floor frame. A plurality of long floor frames are attached at substantially equal intervals in the belt tensioning direction. Compared with the conventional structure, even if the gap between the floor frames is increased, the wheels of the car can be easily prevented from entering. In addition, it is possible to easily reduce the weight, reduce the manufacturing cost, and the like, and easily use a cart or a truck having a small wheel width for loading and unloading luggage.

[0004]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIGS. 1 to 6, the front and rear ends of the vertical joist frame (5) are connected between the front and rear frames (1) and (2) via the front and rear shaft frames (3) and (4) and stretched in the left and right direction. A plurality of floor frames (6) are fixed to the upper surface of the vertical joist frame (5), and the front and rear rollers (9) (10) are mounted on the shaft frames (3) and (4) via front and rear roller shafts (7) and (8). ) Is rotatably supported, and a belt (11) that is half-wound around each of the rollers (9) and (10) is fixed to the gate frame (12). Also, the front and rear frames (1)
The columns (13) and (14) are erected on (2) and the front wall (1) is
5) and left and right side walls (16) (17) and rear door (1)
8) (18) and side doors (19) and (19) are attached to the columns (13) and (14) to form a rectangular box-shaped carrier (20). In a direction substantially parallel to the direction, and the floor of the loading platform (20) is
1).., And the luggage is placed on the upper surface of the belt (11) before and after the gate frame (12) by using a cart (21) or a pallet.

Further, as shown in FIGS. 4 to 7, a plurality of horizontal joist frames (23) are fixed on the upper surface of the chassis frame (22) of the truck, and the upper surface of each frame (23) which is stretched in the left-right direction. The joist frame (5) and the front and rear frames (1) and (2) are mounted and fixed, and the loading platform (20) is detachably fixed to the upper surface of the chassis frame (21). A gap that is small enough to not enter (for example, a width of 2 cm)
Each floor frame (6) is arranged at substantially equal intervals so as to form
And a carriage (21) is moved in and out of the upper surface of the belt (11) on the floor frame (6) via the tread (25) on the upper surface of the rear frame (2) and the rear roller (10).
A floor frame (6) is provided on an upper surface of a chassis frame (22) of a truck via a joist frame (23), and a belt (11) conveying surface is stretched on an upper surface of the floor frame (6). A plurality of long floor frames (6) are attached at substantially equal intervals in the direction in which the belt (11) is stretched, and even if the gap between the floor frames (6) is increased as compared with the conventional structure, the cart wheel (21). The wheel (24) can be prevented from entering, the weight and the production cost can be reduced, and the cart (21) or the bogie with a small wheel (24) can be used for loading / unloading of luggage. doing.

Further, as shown in FIGS. 5 to 7, center and side partition plates (26), (26), (27) and (2) are provided on the upper surface of a floor frame (6) made of an aluminum alloy or an iron alloy.
7), the synthetic rubber belts (11)... Are stretched between the partition plates (26) and (27), and the friction coefficient between the floor frame (6) and the belt (11) is 3 As shown in FIGS. 3 and 8, a tension bolt (28) is attached to the gate frame (12) so as to be able to move up and down substantially vertically, and the front end folded portion of the belt (11) is fitted with a metal fitting (29). ) To fix the lower end of the belt (11) at the lower end of the belt (11) with the metal fitting (30).
To the gate frame (12), and the tension of the belt (11) is adjusted by bolts (28). As shown in FIG. 4, a shielding plate (31) is stretched on the upper surface of the horizontal joist frame (23), and the entire area of the loading platform (20) on the lower surface side of the vertical joist frame (5) is closed.
1) to prevent muddy water from entering and adhering to the non-transport side of the belt (11).

Further, as shown in FIGS. 5 to 7, guide rails (32) and (32) are provided between the front and rear struts (13) and (14).
Is fixed, and the sliding bodies (3) on both sides of the gate frame (12) are fixed.
3) (33) is slidably fitted to the left and right guide rails (32) and (32), and the left and right guide rails (32) and (32)
Thereby, the gate frame (12) is supported so as to be movable in the front-rear direction. As shown in FIGS. 9 to 11, a control box (34) having a switchboard and the like is attached to the lower surface of the front frame (1), and an electric motor (35) powered by a truck battery and a planetary gear reducer (36). Into the box (34) and the sprockets (37) (3)
7) The output shaft (40) is connected to the front roller shaft (7) via (38) (38) and the chains (39) (39), and the sprocket (4) is connected to the front and rear roller shafts (7) (8).
1) A load chain (43) is stretched via (42), a tension adjusting turnbuckle (44) is connected to the middle of the load chain (43), and both ends of the load chain (43) are slid on the gate frame (12). The moving element (33) is fixed to the front and rear ends. As described above, the gate frame (12) is pulled in the front-rear direction by the pair of left and right load chains (43), and the three belts (11) are pulled by the gate frame (12) to the floor frame (6). Since the belt (11) slides on the upper side, the meandering movement of the belt (11) can be easily reduced, and the left and right edges of the belt (11) or the floor frame (6) can be easily prevented from being damaged. The structure is such that the tensile load can be easily reduced.

A reciprocating limit switch (47) (4) for detecting the reciprocating movement end of the gate frame (12) through the projections (45) and (46) of the chain (43).
8). When the gate frame (12) approaches the front and rear frames (1) and (2), the limit switch (47)
(48) is turned off to stop the motor (35), and as shown in FIG. 4, a pinch prevention limit switch (49) is provided on the front frame (1) to provide a gate frame (1).
2) When luggage is loaded from the side door (19) on the upper surface of the front belt (11), when the front luggage approaches the front frame (1) due to the forward movement of the gate frame (12),
The limit switch (49) is turned off by the luggage, the motor (35) is stopped, and the gate frame (2) is turned off.
0) and the front wall (15) are configured to prevent the luggage from being caught.

Further, the left and right side walls (16) of the carrier (20).
(17) Openable and closable lid plates (50) and (50) are detachably fixed to the lower portion, and by removing the lid plate (50), the entire area outside the load chain (43) is opened, and the chain (4) is opened.
3) It is configured to perform operations such as attachment and detachment and tension adjustment.

This embodiment is constructed as described above. By operating the motor (35) in the forward or reverse direction, the gate frame (1) is moved through the load chain (43).
2) The carrier (20) is guided by the guide rail (32).
To the front or back of the gate frame (12)
Are pulled forward or backward through the floor frame (6), and the belt (11) is slid forward or backward on the upper surface of the floor frame (6) to load luggage on the upper surface of the belt (11), 11) The operation of lowering the luggage on the upper surface, when the gate frame (12) moves to the front or rear limit and the limit switches (47) and (48) are turned off, or the front side of the gate frame (12). When the luggage approaches the front wall (15) and the limit switch (49) is turned off, the motor (35) is automatically stopped, and only the operation in the reverse direction is permitted. In addition, the gate frame (12) is moved forward in advance to form a space at the rear of the bed (20), and the cart (2) is inserted into the bed (20) from behind.
Even if the wheel (24) of the cart (21) is larger than 10 cm, even if the car (1) is driven in, the belt (1) may be used.
Since the gap between the floor frames (6) that intersect with 1) is about 2 cm, the wheel (24) enters the gap between the floor frames (6) and the belt (1).
1) without interposing the wheels (2) on the belt (11).
4) can be rolled with a low load. Further, the belt (11) carrying the car (21) can be slid by moving the gate frame (12) back and forth.

[0011]

As is clear from the above embodiments, according to the present invention, a floor frame (6) is provided on a chassis frame (22) of a truck via a joist frame (23).
A plurality of floor frames (6), which are long in the left-right direction, are attached at substantially equal intervals in the belt (11) extending direction in a truck bed where a belt (11) transport surface is stretched on the upper surface of the floor frame (6). In comparison with the conventional structure, even if the gap between the floor frames (6).
1) It is possible to easily prevent the wheels (24) and the like from entering, to easily reduce the weight and the manufacturing cost, and to reduce the weight of the cart (21) or the cart with the small width of the wheels (24). It can be easily used for loading and unloading. Further, since the floor frame (6) extends in the width direction of the loading platform (20), the floor frame (6) is formed to be shorter than the conventional structure extending in the front-rear direction, and the unit area of the floor frame (6) is increased. The load per load can be easily increased, and the deformation and damage of the floor frame (6) due to the heavy load on the belt (11) can be reduced. Further, in the conventional structure in which the floor frame extends in the front-rear direction of the loading platform (20), there is a problem that the same surface of the belt is always in sliding contact with the floor frame and the belt is easily worn and damaged. By extending in the direction
Since the entire surface of the belt (11) is in sliding contact with the floor frame (6), wear and damage of the belt (11) can be reduced as compared with the related art.

[Brief description of the drawings]

FIG. 1 is an overall plan view.

FIG. 2 is an explanatory plan view showing a belt removed.

FIG. 3 is an enlarged side sectional view.

FIG. 4 is a sectional view of the same.

FIG. 5 is a rear plan view.

FIG. 6 is a front plan view.

FIG. 7 is an enlarged front sectional view.

FIG. 8 is a sectional view of the same.

FIG. 9 is a front view of an electric motor mounting portion.

FIG. 10 is a side view of the same.

FIG. 11 is a side view of a load chain mounting portion.

[Explanation of symbols]

 (6) Floor frame (11) Belt (22) Chassis frame (23) Joist frame

Claims (1)

[Claims] 1. A truck carrier having a floor frame provided on a chassis frame upper surface of a truck via a joist frame and a belt conveying surface stretched on the upper surface of the floor frame, a plurality of floor frames long in the left-right direction are belt-stretched. A truck bed that is mounted at substantially equal intervals in the installation direction.