JP2000026100A - Unloading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an unloading device capable of unloading construction materials and the like without using a motor, thus eliminating problems such as difficult conveyance due to heavy weight and bulk, much time required for installation, impossible use without an electric power, and high cost. SOLUTION: This unloading device 1 is provided with a pair of side struts 8 on the right and left, a ladder 2 consisting of a plurality of steps 9 which connects the side struts, a movable body 3 with a load placement plate 4 capable of smooth vertical travel along the right and left side struts 8 of the ladder 2. A locking claw 19 is formed so as to oscillate freely, which is energized by an elastic member in the ladder 2 direction to engage with the steps 9 of the ladder 2 from the above and prevent the movable body 3 from travelling downward. The right and left locking claws 19 are connected to each other through a clamp part 20 for unlocking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a discharge machine,
In particular, the present invention relates to a lifter for easily transporting building materials such as window glass and aluminum sash from the first floor to the second floor.

[0002]

2. Description of the Related Art Heretofore, as a loader for transporting building materials such as tiles from a lower floor to an upper floor, a lifter slidably mounted on a ladder is vertically moved using a motor.

[0003]

However, the above-mentioned conventional motor-driven unloader has problems that it is heavy and bulky, which makes it difficult to transport, takes a long time to install, cannot be used without a power source, and is expensive.

[0004] It is an object of the present invention to provide a loader capable of unloading building materials and the like without using a motor and thus solving various problems of a motor-driven loader.

[0005]

The unloader according to the present invention includes a ladder including a pair of right and left columns and a plurality of steps connecting the columns, and a luggage table that can move up and down along the right and left columns of the ladder. A locking claw that is urged in the ladder direction by an elastic member and engages with a step of the ladder from above to prevent the moving body from moving downward on both left and right sides of the moving body. It is freely attached, and the left and right locking claws are connected by a locking release handle.

According to the unloader of the present invention, when a worker downstairs positions the moving body below the ladder, places a load such as a building material on the luggage mounting table, and lifts the moving body by hand. The stop claw contacts the step of the ladder from below, and receives a force from the step in a direction opposite to the biasing direction of the elastic member. Therefore,
The locking claw does not engage with the step of the ladder, and the moving body moves upward. When the upward movement of the moving body is stopped, the moving body moves downward by its own weight, whereby the locking claw is engaged with the step of the ladder from above. In this state, the worker on the floor may drop the load from the load table. Then, hold the handle that connects the left and right locking claws to each other and swing the locking claw to release the locking between the locking claw and the step of the ladder. Move and return to the original state. Thus, unloading of building materials and the like can be performed without using a motor.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In the following description, the left of FIG. 2 is referred to as front, the right is referred to as rear, and the left and right are referred to forward.

As shown in FIGS. 1 and 2, the unloading machine (1) of the present invention comprises a ladder (2) and a movable body with a luggage mounting table (4) which is connected to the ladder (2) so as to be vertically movable. (3), the ladder (2) is supported on the floor (5) of the first floor,
(6), and moving the mobile unit (3) upward to move the load placed on the load table (4).
(7) is transported upstairs.

The ladder (2) comprises a U-shaped column (8) having a pair of left and right cross-section openings facing inward, and a plurality of steps (9) connecting these columns. The moving body (3) includes a U-shaped column (10) having a pair of left and right cross-sectional openings facing outward, and a plurality of horizontal bars (11) connecting these columns. The height of the ladder (2) is set to reach from the first floor to the second floor, and the height of the moving object (3) is about 2/3 of the height of the ladder (2), such as window glass or aluminum sash. It is said to be a height that can support building materials. Then, move the moving body to the front of the back wall of the ladder (2).
The moving body (3) is slidably connected behind the ladder (2) by overlapping the front wall of the support (10) of (3).

As shown in an enlarged scale in FIG. 3, the luggage mounting table (4) has a fixed plate fixed between the left and right columns (10) of the moving body (3).
(12) and a movable plate (13) rotatably connected thereto via a hinge (14). The fixing plate (12) is provided slightly above the lower ends of the left and right columns (10). The movable plate (13)
When the load (7) is placed, it is at a right angle to the fixed plate (12), and when transporting the unloader (1), it is rotated upward from the right angle to the fixed plate (12). Then, it is folded parallel to the fixing plate (12). The movable plate (13) has a bent edge (13a) bent at a right angle,
The bent edge (13a) abuts on the fixed plate (12), thereby preventing the movable plate (13) from rotating downward when the load is placed.

On the rear side of the left and right columns (10) of the moving body (3),
A resin film for scratch prevention (15) is affixed. (17) is pasted.

Between the lower ends of the left and right columns (10) of the moving body (3), a moving body push-up handle (18) parallel to the step rail (11) is stopped. The mobile object (3) can be moved upward by holding the) in the hand and pushing up. The handle part (18) is made of a round pipe, and both ends are flattened and fixed to the rear wall of the left and right columns (10).

As shown in detail in FIG. 3 to FIG.
A locking claw support bracket (22) is fixed to the inner surface of the lower end of the left and right support (10) of (3) with a stepped bolt (23).
The bracket (22) is urged by the elastic member (21) in the direction of the ladder (2) (forward) to engage with the step (9) of the ladder (2) from above and the moving body (3) is moved downward. A locking claw (19) for preventing movement of the arm is supported swingably.

The locking claw (19) has a stepped bolt (23) at the lower end.
The arm portion (24) has a penetrating portion, and a substantially triangular engaging portion (25) provided at the upper end of the arm portion (24). Engagement part (25)
The rear surface (25a) is flush with the rear surface of the arm (24), the front surface (25b) extends forward from the top of the rear surface (25a), and the arm (24) extends from the lower end of the front surface (25b). Concave lower surface connected to the front of the
(25c), and the concave lower surface (25c) is fitted to the step (9). The locking claw (19) is manufactured by bending a peripheral portion of a steel plate cut into a predetermined shape. Near the lower end of the arm portion (24) of the locking claw (19), a cut-and-raised portion (26) is provided in an inwardly projecting shape. Also, left and right locking claws (19)
The arms slightly above the center of the arms (24) are connected by an unlocking handle (20). By pulling the handle portion (20) backward, the left and right locking claws (19) swing back around the stepped bolt (23), and the left and right locking claws (1
The engagement between the step (9) and the step (9) of the ladder (2) can be released.

The bracket (22) has a hollow locking claw housing (27) which is open at the top and bottom, and the lower end of the arm (24) of the locking claw (19) is locked. It is housed in the nail storage section (27). The front and rear walls (27a) of the locking claw storage portion (27) serve as a stopper for stopping the swing of the locking claw (19).

The elastic member (21) is wound around a large diameter portion of the stepped bolt (23) by a torsion coil spring, and one end (2
1a) is hooked on the upper end of the locking claw support bracket (22), and the other end (21b) is hooked on the cut-and-raised portion (26) provided on the arm (24) of the locking claw (19). Has been stopped. Thereby, the locking claw (19) is urged in the direction of the ladder (2).

The above-described unloader (1) is used as follows. The unloading machine (1) is transported with the movable body (3) positioned below and the movable plate (13) of the luggage carrier (4) folded. The weight and volume of the unloader (1) is comparable to a double ladder, easy to transport, and can be loaded on a light truck. At the time of unloading, workers are, for example, one person downstairs and upstairs first.
The movable plate (13) is rotated to put the load on the movable plate (13), and the handle (18) of the moving body (3) is pushed upward. This allows
The front (25b) of the front of the engaging part (25) of the locking claw (19) is a ladder.
It touches the step (9) of (2) from below. At this time, the engagement part (2
The front surface (25b) of (5) receives a force in a direction opposite to the biasing direction of the elastic member (21), that is, a rearward force from the step (9). Therefore,
The locking claw (19) does not engage with the step (9) of the ladder (2), and the elastic member
The mobile object only receives a slight drag due to the biasing force of (21).
(3) moves upward. When the moving body (3) stops moving upward when the luggage mounting table (4) reaches near the upper floor, the moving body (3) moves downward by its own weight, thereby causing the elastic member to move downward.
Locking claw (19) biased by (21) and swinging forward
The lower surface (25c) of the engaging portion (25) engages with the step (9) of the ladder (2) from above, thereby preventing the moving body (3) from moving downward. In this state, the worker on the floor may drop the load from the load table (4). After this, hold the handle (20) connecting the left and right locking claws (19) in your hand, pull it forward, swing the locking claw (19), and slide the locking claw (19) and the ladder (2). ) And the handle (18) of the mobile unit (3), the mobile unit (3) slowly moves downward by its own weight and returns to the original position. Return to the state. The same operation may be repeated a plurality of times as necessary.

[0018]

According to the unloader of the present invention, building materials can be unloaded without using a motor. Therefore, it is heavy and bulky, which makes it difficult to transport, takes time to install, cannot be used without a power supply, and costs are reduced. It is possible to solve various problems of the unloader using a motor, such as being expensive.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a loader according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is an enlarged side view of a main part.

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3;

FIG. 5 is a sectional view taken along the line VV of FIG. 3;

[Explanation of symbols]

 (1) Unloader (2) Ladder (3) Moving object (4) Luggage carrier (8) Support (9) Stepping bar (19) Locking claw (20) Handle (21) Torsion coil spring (elastic member)

Claims (1)

[Claims] A ladder (2) comprising a pair of right and left columns (8) and a plurality of steps (9) connecting them, and a ladder (2) capable of moving vertically along the left and right columns (8). And a moving body (3) with a luggage mounting table (4), and the right and left sides of the moving body (3) are urged in the direction of the ladder (2) by the elastic member (21) to step on the ladder (2).
A locking claw (19) that engages from above (9) from above and prevents the moving body (3) from moving downward is swingably mounted, and the left and right locking claws (19) are Unloader connected by an unlocking handle (20).