JP3189153U - Roll box pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roll box pallet provided with a brake mechanism of casters having improved safety and durability. SOLUTION: In a roll box pallet including a pallet, a pipe frame provided so as to surround a loading space above the pallet, and casters provided below the pallet, a tip 41a is subjected to the urging force of a spring 46. Is pressed against the tire 22 of the caster, a lever 42 provided on the pipe frame for operating the position of the brake shoe, and a rod configured to move inside the hollow of the pipe frame by operating the lever. By converting the movement of the rod into the power to move the brake shoe and transmitting it to the brake shoe, the brake shoe is moved to a position where the braking force is not exerted on the tire against the urging force. It is provided with a configured transmission mechanism. [Selection diagram] Fig. 6

Description

  The present invention relates to a roll box pallet.

  Roll box pallets used for transporting, sorting, storing, etc. are also called car carts, etc., and are surrounded by a fence-like frame around the pallet on which the load is placed and can be moved by casters (wheels) provided at the bottom of the pallet It is configured. A caster with a brake may be used for safety during work. Patent Document 1 proposes a structure in which a lever and a brake provided on a support of a frame are connected with a wire so that the brake can be released by operating the lever when moving the roll box pallet.

  However, in the configuration described in Patent Document 1, the wire is exposed to the outside of the frame, and there is a possibility that a load, a worker's body, or the like may be caught during work. In addition, it is not uncommon for roll box pallets to be handled roughly, and exposed wires may be damaged or broken by contact with objects. Breaking the wire is dangerous for the operator. In addition, when used outdoors, it is easily affected by the external environment, and there are concerns about the occurrence of rust due to rainwater, etc., and the growth due to changes in weather conditions (rain and sunshine). These may accelerate wire deterioration and cause wire breakage.

JP 2012-91557 A

  The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a roll box pallet having a caster brake mechanism with improved safety and durability. is there.

In order to achieve the above object, the roll box pallet in the present invention is
A palette,
A pipe frame provided so as to surround the loading space above the pallet;
A caster provided below the pallet;
In a roll box pallet comprising
A brake shoe that receives the biasing force of the biasing member and is pressed against the tire of the caster;
A lever provided on the pipe frame for operating the position of the brake shoe;
By having a rod configured to move in the hollow interior of the pipe frame by operation of the lever, by converting the operation of the rod into power for moving the brake shoe and transmitting it to the brake shoe, A transmission mechanism configured to move the brake shoe against the biasing force to a position where the tire does not exert a braking force;
It is characterized by providing.

According to the present invention, the transmission mechanism that converts lever operation into power and transmits the power to the brake shoe is configured to transmit power by moving the rod inside the hollow of the pipe frame. That is, the structural member for transmitting power in the transmission mechanism is not exposed to the outside. Accordingly, it is possible to reduce the influence of contact with an object during handling, such as a conventional transmission mechanism using a wire exposed to the outside, and the influence of the external environment, and it can be used safely for a long period.

It is configured to be able to take a storage form in which the pallet is raised vertically,
Brake release mechanism configured to generate power to move the brake shoe against the urging force to a position where the brake shoe does not exert braking force by an operation in which the pallet is raised vertically. Is preferably provided.

  Since the brake is released by taking the storage form, the roll box pallet can be moved without requiring a brake release operation in the storage form. Therefore, it becomes easy to move and organize a plurality of units together at a storage place when not in use, and the handling property at the time of storing work can be improved.

  As described above, according to the present invention, safety and durability can be improved in a roll box pallet equipped with a caster brake mechanism.

The schematic diagram which shows the structure of the roll box pallet which concerns on the Example of this invention. Schematic perspective view showing the overall structure of the brake mechanism Schematic perspective view showing the configuration of the brake mechanism Schematic diagram showing the configuration around the lever of the brake mechanism Schematic diagram showing the structure of the brake mechanism (when the brake is on) Schematic diagram showing the structure of the brake mechanism (when the brake is OFF) Schematic diagram showing the configuration of the brake release mechanism (when the brake is on) Schematic diagram showing the configuration of the brake release mechanism (when the brake is OFF)

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be exemplarily described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the invention to those unless otherwise specified. .

(Example)
A roll box pallet according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic diagram showing the configuration of a roll box pallet according to an embodiment of the present invention, where (a) is a plan view, (b) is a front view, (c) is a left side view, and (d) is a right side. FIG. 2A and 2B are schematic perspective views showing the entire configuration of the brake mechanism in the roll box pallet according to the embodiment of the present invention. FIG. 2A is a left side view, and FIG. 2B is a front view. FIG. 3 is a schematic perspective view showing the configuration of the brake mechanism in the roll box pallet according to the embodiment of the present invention, and a part of the configuration is omitted. FIG. 4 is a schematic diagram showing the configuration around the lever of the brake mechanism in the roll box pallet according to the embodiment of the present invention. FIG. 5 is a schematic diagram showing the configuration of the brake mechanism (when the brake is turned on) in the roll box pallet according to the embodiment of the present invention, (a) is a perspective view showing the brake mechanism and casters, and (b) is around the casters. FIG. 6A and 6B are schematic views showing the configuration of the brake mechanism (when the brake is OFF) in the roll box pallet according to the embodiment of the present invention, where FIG. 6A is a perspective view, and FIG. 6B is a perspective cross-sectional view showing the configuration around the caster. FIG. FIG. 7 is a schematic view showing a configuration (when the brake is turned on) of a second brake mechanism (brake release mechanism) in the roll box pallet according to the embodiment of the present invention, (a) is a perspective view, and (b) is a perspective view. It is a see-through | perspective sectional drawing which shows the structure of a caster periphery. FIGS. 8A and 8B are schematic views showing the configuration (when the brake is OFF) of the second brake mechanism (brake release mechanism) in the roll box pallet according to the embodiment of the present invention, where FIG. 8A is a perspective view, and FIG. It is a see-through | perspective sectional drawing which shows the structure of a caster periphery.

<Schematic configuration of roll box pallet>
The roll box pallet 1 generally includes a substantially rectangular plate-shaped pallet 10 as a loading platform on which a load is placed, four casters 20 provided below the pallet 10, and a fence erected so as to surround the pallet 10. Shaped pipe frame 30. The pipe frame 30 has a structure in which walls are formed on at least three surfaces so as to surround the loading space above the pallet 10 and one surface is opened for loading and unloading.

  The roll box pallet 1 is generally used for collection and delivery and storage of luggage, and the luggage is placed on the upper surface of the pallet 10 and stored in that state, or moved to a desired position together with the luggage (that is, (Carrying luggage).

<Frame>
The pipe frame 30 includes three frames, a back frame 30a, a left side frame 30b, and a right side frame 30c. Each of the frames 30a to 30b includes a U-shaped frame 31 (31a, 31b, 31c) configured such that a pipe-shaped hollow member is bent into a substantially inverted U shape, and a vertical portion and a horizontal portion of each U-shaped frame 31. Vertical ribs 32 and horizontal ribs 33 that extend in a lattice pattern, and horizontal frames 34 (34 a, 34 b, 34 c) that connect the lower ends of the U-shaped frames 31 are provided.

  The left side frame 30b is connected to one side of the back frame 30a and the right side frame 30c is connected to the other side of the back frame 30a via a plurality of connecting members (hinges) 36 so as to be rotatable around a vertical axis. ing. The left side frame 30b and the right side frame 30c form an angle of 90 degrees on the plane with respect to the back frame 30a, respectively, and are arranged so as to face each other on both sides of the back frame 30a. The area on the front side facing the back frame 30a is an opening for loading and unloading.

  Corner support portions 35 (35a, 35b) are provided at both lower ends of the U-shaped frame 31 of the back frame 30a. Casters 20 (20a, 20b) are attached to the lower portions of these two corner support portions 35, respectively. Of the lower end portions of the U-shaped frames 31b and 31c in the left side frame 30b and the right side frame 30c, the corner support portions 35 (35c and 35d) are also provided on the lower end portion opposite to the side connected to the back frame 30a. ) Is provided. Casters 20 (20c, 30d) are attached to the lower portions of the corner support portions 35, respectively. The four corner support portions 35 are each configured to support the lower surface of the pallet 10 on the upper surface.

<Palette>
The pallet 10 is a substantially rectangular plate-like member, and is arranged horizontally, and the upper surface serves as a loading surface for placing a load. The pallet 10 is supported at the four corners of the lower surface by the four corner support portions 35. Further, the pallet 10 is coupled to the horizontal frame 34a of the back frame 30a via a plurality of coupling members (hinges) 37. The pallet 10 is configured to be rotatable with respect to the back frame 30a around an axis line (horizontal axis) parallel to the horizontal frame 34a by the connecting member 37.

<Caster>
The casters 20 (20 a to 20 d) include a wheel 21, a tire 22 attached to the outer periphery of the wheel 21, and a yoke 23 that rotatably supports the wheel 21. The yoke 23 is rotatably connected to the corner support portion 35 via the rotation shaft 24. As a result, the caster 20 can freely change the direction around the vertical rotation shaft 24 by 360 degrees. In addition, the structure of the caster shown in a present Example is an example to the last. The configuration of casters applicable to the present invention is not limited to a specific configuration.

<Brake mechanism>
The roll box pallet 1 according to the present embodiment includes a brake mechanism 40 for restricting the rotation of the caster 20 (wheel 21) and stopping the roll box pallet 1 at a predetermined position. The brake mechanism 40 includes a brake shoe 41 that generates a braking force that suppresses the rotation of the wheel 21 by contacting the tire 22, a lever 42 that operates the position of the brake shoe 41, and an operating force that acts on the lever 42. Is transmitted to the brake shoe 41.

  The transmission mechanism 43 includes a vertical rod 44 that is assembled so as to reciprocate up and down in the hollow interior of the U-shaped frame 31b of the left side frame 30b, and a horizontal rod 45 that is rotatably supported at both ends by corner support portions 35. . The horizontal rod 45 is attached along the frame below the horizontal frame 34b, and is arranged so as to be hidden under the horizontal frame 34b on a plane.

  The brake shoe 41 is configured such that the shaft portion 41 b can move up and down in the hollow interior of the rotary shaft 24, and exerts a braking force when the tip portion 41 a is pressed against the tire 22 by the urging force of the spring 46. The spring 46 is assembled to the outer periphery of the shaft portion 41 b of the brake shoe 41 inside the hollow shaft 24.

  As shown in FIGS. 1 to 3, the lever 42 is attached above the U-shaped frame 31, specifically, at a height at which the operator grips the frame when moving the roll box pallet 1. It is connected to one end of 44.

  As shown in FIG. 4, the lever 42 is attached to the U-shaped frame 31 so as to be rotatable about a rotation shaft 42a, and an operated portion (gripping portion) 42b whose one side is operated by an operator with respect to the rotation center. The pin 42 c provided on the other side is locked in the hole 44 a of the vertical rod 44. The lever 42 is configured to be maintained in a state where the vertical rod 44 is lifted upward by a spring force (biasing force) of a spring 42d attached to the rotating shaft 42a in a state where no force is applied. (The state of FIGS. 4 and 5). For example, when the operator holds the operated portion 42b of the lever 42 together with the U-shaped frame 31, the angle of the lever 42 is changed, and the operated portion 42b becomes vertical (parallel to the frame 31) (arrow A). . By this operation, the pin 42c on the opposite side to the operated portion 42b rotates to tilt the tip side downward while pushing down the hole 44a of the vertical rod 44 (arrow B), and the vertical rod 44 is lowered ( Arrow C).

  When the vertical rod 44 is lowered by the operator's operating force acting on the lever 42, the pressing portion 44a at the lower end of the vertical rod 44 pushes the pressed portion 45a of the horizontal rod 45, and the horizontal rod 45 rotates (arrow D). . The horizontal rod 45 is connected to the upper end of the shaft portion 41b of the brake shoe 41 so that the brake shoe 41 can be moved up and down by rotation. When the brake shoe 41 is raised by the rotation of the horizontal rod 45 (arrow E), the tip 41a of the brake shoe 41 is separated from the tire 22 and the brake of the caster 20 is released.

In the vertical rod 44, no force is applied to the operated portion 42b of the lever 42, and the spring 42d
At the position lifted upward by the urging force, the pressing portion 44a is configured not to contact the pressed portion 45a of the horizontal rod 45 (FIG. 5). The position (angle) of the lever 42 at this time is a braking position (angle) at which the caster 20 is braked. The amount of movement of the vertical rod 44 (how much it is lowered) is determined by the amount of operation of the lever 42 (how much it is tilted).

  In the roll box pallet 1 according to this embodiment, the two casters 20 a and 20 c are configured to be brakeable by the brake mechanism 40. Specifically, the horizontal rod 45 is connected to the brake shoe 41 of the caster 20c attached to the lower part of the left side frame 30b on one end side, and the brake of the caster 20a attached to the lower part of the rear frame 30a on the other end side. It is connected to the shoe 41. As the horizontal rod 45 rotates, both of the two casters 20a and 20c are brought into a braking release state.

  Further, the roll box pallet 1 according to the present embodiment further includes another lever for operating braking of the casters 20a and 20c. Specifically, a second lever 47 having the same configuration as the lever 42 described above is attached above the U-shaped frame 31a of the back frame 30a (at the same height as the lever 42). In addition, a second vertical rod 48 having the same configuration as the vertical rod 44 described above is provided in the hollow interior of the U-shaped frame 31a of the back frame 30a so as to be vertically movable. The lever 47 is connected to the upper end of the vertical rod 48, and is configured such that by operating the lever 47, the pressing portion 48 a at the lower end of the vertical rod 48 can press the second pressed portion 45 b of the horizontal rod 45. ing. Therefore, it is configured so that the braking of both the two casters 20a and 20c can be operated by operating one of the levers. Needless to say, it is possible to release the casters 20a and 20c with less force by operating both levers 42 and 47 simultaneously.

<When stored>
The roll box pallet 1 according to the present embodiment is configured so that a part of the configuration can be folded in order to improve the storage property. That is, the pallet 10 and the right side frame 30c are configured to be rotatable via the connecting members 36 and 37 with respect to the back frame 30a. Therefore, the pallet 10 is raised vertically by lifting the tip side (the side opposite to the side connected to the back frame 30a) (FIG. 1, arrow I), and the right side frame 30c is folded so as to overlap the back frame 30a ( The storage form in which the entire silhouette on the plane is substantially L-shaped can be obtained by FIG. 1, arrow J). By being configured to be foldable in this way, a plurality of roll box pallets 1 can be arranged so as to overlap each other in the horizontal direction. Therefore, it is possible to reduce the space required for storing a plurality of roll box pallets 1 when not in use.

  Although the left side frame 30b and the back frame 30a provided with the brake mechanism 40 are fixed to each other, the casters 20a attached to the back frame 30a with the components of the brake mechanism 40 provided only on the back frame 30a, You may comprise 20b so that braking is possible. Accordingly, the left side frame 30b can be configured to be folded with respect to the back frame 30a.

As shown in FIGS. 7 and 8, the roll box pallet 1 according to the present embodiment is configured such that braking of the casters 20 a and 20 c is released when the pallet 10 is raised vertically. Specifically, a lever 49 that operates to rotate the horizontal rod 45 by the operation of the pallet 10 is provided. The lever 49 is rotatably attached to a corner support portion 35 a that supports the other end of the horizontal rod 45. In addition, the pallet 10 is provided with a pressing portion 10 a for rotating the lever 49. By the operation of raising the pallet 10 vertically, the pressing portion 10a contacts the lever 49, and the lever 49 is rotated by pushing down one end of the lever 49 (arrow G). By this rotation, the other end of the lever 49 comes into contact with the third pressed portion 45c provided on the horizontal rod 45, and the horizontal rod 45 is rotated by pushing (arrow H). By this rotation, the shaft portion 41b of the brake shoe 41 is lifted (arrow E), and the brake is released.

<Excellent points of this embodiment>
According to the present embodiment, the transmission mechanism 43 that converts the operation of the lever 42 into power and transmits it to the brake shoe 41 is configured to be able to transmit power by moving the vertical rod 44 inside the hollow of the pipe frame. That is, in the transmission mechanism 43, the structural member for transmitting power is not exposed to the outside. Therefore, it is possible to reduce the influence of the external environment such as the contact with the object at the time of handling, such as the conventional transmission mechanism using the wire exposed to the outside, the weather, etc. it can.

  Moreover, the roll box pallet 1 according to the present embodiment has a configuration including two types of brake mechanisms (brake release mechanisms). In other words, the brake is released by operating the levers 42 and 47 during the moving operation, and the brake is released by taking a storage configuration in which the pallet 10 is raised vertically. During the moving operation, the brakes of the casters 20 can be easily released by grasping the levers 42 and 47. After the movement, the casters 20 are braked and the roll box pallet 1 can be easily fixed by simply releasing the levers 42 and 47. It can be carried out. Further, by releasing the brake by taking the storage form, the roll box pallet 1 can be moved without requiring a brake release operation in the storage form. Therefore, it becomes easy to move and organize a plurality of units together at a storage place when not in use, and the handling property at the time of storing work can be improved.

1 Roll box pallet 10 Pallet 20 (20a, 20b, 20c, 20d) Caster 21 Wheel 22 Tire 23 Yoke 24 Rotating shaft 30 Pipe frame 30a Rear frame 30b Left side frame 30c Right side frame 31 (31a, 31b, 31c) U-shape Frame 32 Vertical rib 33 Horizontal rib 34 (34a, 34b, 34c) Horizontal frame 35 (35a, 35b, 35c, 35d) Corner support portion 36, 37 Connecting member (hinge)
40 Brake mechanism 41 Brake shoe 41a Tip 41b Shaft part 42 Lever 42a Rotating shaft 42b Operated part (gripping part)
42c Pin 42d Spring 43 Transmission mechanism 44 Vertical rod 45 Horizontal rod 46 Spring 47 Lever 48 Vertical rod 49 Lever

Claims (2)

A palette,
A pipe frame provided so as to surround the loading space above the pallet;
A caster provided below the pallet;
In a roll box pallet comprising
A brake shoe that receives the biasing force of the biasing member and is pressed against the tire of the caster;
A lever provided on the pipe frame for operating the position of the brake shoe;
By having a rod configured to move in the hollow interior of the pipe frame by operation of the lever, by converting the operation of the rod into power for moving the brake shoe and transmitting it to the brake shoe, A transmission mechanism configured to move the brake shoe against the biasing force to a position where the tire does not exert a braking force;
A roll box pallet characterized by comprising: It is configured to be able to take a storage form in which the pallet is raised vertically,
Brake release mechanism configured to generate power to move the brake shoe against the urging force to a position where the brake shoe does not exert braking force by an operation in which the pallet is raised vertically. The roll box pallet according to claim 1, comprising:

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