JP6281036B1 - Wheelbarrow brake equipment - Google Patents

Abstract

Provided is a brake device in which, even in a cart having a nesting function (associating), a brake is applied when a handle of the cart is pushed, a brake is released when the handle is released, and a brake is released when the carts come into contact with each other. It is. A shaft is slidably passed through a central portion of a cylindrical brake body, a spring is inserted into or outside the cylindrical brake body of the shaft, and the cylindrical brake body is moved by a lever mechanism. When the wire 51 is pulled up to release the brake, and the wire pulling force is released, the tubular braking body is lowered by the restoring force of the spring so that the brake is applied. A handcart brake device characterized in that a pendulum lever for releasing the brake is provided. [Selection] Figure 2

Description

  The present invention relates to a brake device for a light handcart such as a shopping cart.

For example, in a shopping center such as a large-scale mass retailer, products are put directly into the basket portion of a wheelbarrow (hereinafter also referred to as a cart in the present application), or a basket is placed and shopping is put into a checkout place. Go and settle and pack it with you.
At this time, when there is a lot of shopping and the weight increases, the packed shopping is further put on a cart, and the cart is pushed to the parking lot and refilled into a passenger car.
However, current shopping carts include carts that carry only products as shown in FIG. 9 and carts that carry infants and further products. However, conventional carts do not have a brake device, which is very dangerous. To see.
For example, when shopping or packing a product, an infant may reach out to the product and move the cart and drop it, or in the case of inclined outdoor parking, the product is transferred from the cart to a passenger car. The cart may move naturally.

However, many shopping carts used in shopping centers have many nesting functions (association) that allow the carts to enter each other in order to increase the efficiency of the storage space of the carts. There was a problem to install.
As shown in FIG. 9, the cart having a nesting function has a narrow tip and a wide rear, and the cart has a shape that fits into the preceding cart for about three quarters. This shape makes it possible to mount the pendulum lever described in paragraph numbers “0008”, “0014”, “0015” and “0016”.

JP-A-10-244944

For example, a shopping cart used in a shopping center is automatically braked when the cart is stopped and the product is put into the cart from the product shelf, when it is settled, when it is packed, when it is refilled into a passenger car. When moving, or when placing a cart in the cart yard of the nesting function, it is necessary that the brake is automatically released.
In particular, when several carts are connected in series, the clerk moves several carts to another place at one time, so even if one of them is braked, it cannot be moved.
Therefore, the cart in the cart storage area has a problem that the brake must always be released.
However, if a brake device that presses the stopper petal against the wheel part of a caster used in conventional general handcarts is attached to the cart, it is necessary to operate the brake every time it moves or stops, making it impossible to force the customer. there were.
Therefore, a simple brake device has been developed and provided to a shopping cart, other light transport carts, etc. so as not to be in a dangerous situation as described above.

In order to solve the above problems, the following brake device is proposed.
(1) The brake device of the present application is a system in which a means for raising and lowering a cylindrical braking body (hereinafter also referred to as a cylinder) is provided and grounded to the floor to apply a brake.
The means for raising and lowering in “Claim 1” includes the following many means.
For example, in order to ground (lower) the cylindrical braking body, the spring is attached to the inside and outside of the cylinder as shown in FIGS. 1 to 3, and by pulling the wire as shown in FIGS. There are a method of lowering and grounding, and a method of pushing down the cylinder by operating the operating rod and the operating lid as shown in FIGS.
Although not shown, there are a hydraulic type and a pneumatic type.
(2) The method of releasing the brake by lifting the cylinder from the floor is a method of pulling up the cylinder with a wire as shown in FIGS. 1, 2 and 3, and a method of pushing up the cylinder with a spring as shown in FIGS. As shown in FIGS. 6 and 7, there is a method in which the operating rod and the operating lid are directly operated by hand and the cylinder is pulled upward by the restoring force of the spring.
Although not shown, there are also hydraulic and pneumatic types. (3) For shopping carts that require a nesting function, the brakes are automatically released when they come into contact with or contact other carts. As shown in FIGS. 1 and 2, a means for performing the operation and a lock function operated only by an attendant are provided.
This locking feature is not intended for use by shoppers.

The structure will be described in more detail.
(1) The grounding portion of the cylindrical braking body (1) may be open or closed as shown in FIG. A flexible adsorption member (11) was attached to the lower part of the cylinder.
(2) A hole penetrating the shaft (2) is provided in the upper part of the cylindrical braking body (1), and the diameter of the hole is such that the cylindrical portion can freely slide on the shaft (2).
1 and 4, a spring (3) is inserted into the outer upper part of the cylinder, and in FIGS. 3 and 5, a spring (3) is inserted into the inner upper part of the cylinder.
To release the brake by pulling up the cylinder with the wire, the spring is compressed in FIG. 1 and the spring is extended in FIG. (The action of the spring is opposite to that of FIGS. 1, 2 and 3.)
When the lifting force of the cylinder is released, the cylinder is lowered by the restoring force of the spring and pressed against the floor to apply a brake.
(3) In FIGS. 4 and 5, if the wire is pulled, the cylinder descends and comes into contact with the ground and the brake is applied. If the wire is loosened, the cylinder is raised by the restoring force of the spring and the brake is released.
(4) The height at which the cylinder is pulled up depends on the level difference of the floor, but there are many flat places in a general shopping center, and it is sufficient to raise it by about 2 to 3 cm.
1 to 3, the lever (4) is operated to pull the wire (52) by about 1 cm, and the amplifying mechanism (6) pulls the wire longer. Can be raised above the floor. The length by which the wire (51) is pulled can be adjusted according to the length of the long arm (63) of the amplification mechanism (6) and the position of the rotary piece (71) through which the wire passes.
4 In the method of pulling up the cylinder with a spring as shown in FIG. 5, it cannot be determined by the length of the wire as shown in FIG. 1 or FIG. 3, so it is necessary to adjust the length of the spring or the mounting position of the cylinder.
(5) The structure and operation of the amplification mechanism will be described.
A short arm (62) and a long arm (63) are attached to the rotating shaft (61), and a wire (52) from the operation lever (4) is connected to the short arm (62) to connect the long arm (63). And the cylinder are connected by a wire (51). In addition, a spring (64) is attached to the short arm portion to constantly pull back. A rotating piece (71) is provided in the vicinity of the long arm to determine the position where the wire is stretched to the maximum by the rotation of the long arm.
When the wire (52) is slightly pulled as described above, the short arm (62) of the amplifying mechanism is slightly rotated and the long arm (63) is also rotated, and the length of the arm of the long arm (63) and the rotary piece (71) are rotated. ), The wire (51) is pulled for a long time.
(6) In FIGS. 1 and 2, the lever mechanism is linked to the handle portion (8) of the cart and the handle portion is rotated downward so that the wire connected to the lever is pulled. When moving, if the handle is pushed downward, the lever acts to pull the wire, pulling the cylindrical brake body (1) and detaching from the floor.
That is, the brake is released and the cart moves.
Next, when the handle is released, the lever is raised, the wire is loosened, the spring (64) in the amplifying mechanism is restored, the entire wire (51) is loosened, and the spring (3) of the cylinder (1) is acted to act as the cylinder (1). , The brakes are applied and the cart stops.
Thus, the brake operation of the cart can be performed only by operating the handle. Since the brake is automatically applied when the handle is released, you can shop safely and with peace of mind.
A shopping cart that requires a nesting function may be provided with a lock function that is operated only by an attendant. This lock function is to fix the handle at this position when the handle (8) is rotated downward to release the brake.

(7) As described above, in a shopping cart that requires a nesting function, the cart enters the front cart, and further, the next cart enters the inserted cart one after another. Several stored and associated carts are moved together to another location. For this reason, there is a problem that even if one unit is braked, it cannot move.
Therefore, as shown in FIGS. 1 and 2, the pendulum lever (41) is attached to the tip of the cart, the lever (44) and the contact rod (45) are attached to the rear, and the wire (52) is pulled if the lever tilts. The barrel (1) is raised.
However, when the carts are not in contact with each other or when the clerk is released during movement, a lock function (42) for locking the handle portion in a released state is provided in the handle portion (8). I also suggest that.

  As shown in FIG. 6, casters (wheels) may be connected to the shaft (2) in the cylindrical braking body. On the floor with a step, this advantage is that if the cylindrical braking body is attached as close to the caster as possible, the cylindrical braking body will not be damaged. Since the cart is pushed up and moved by hitting the stepped portion, there is little fear of breakage of the cylindrical braking body.

The cylindrical braking body referred to in the present invention slides stably through the shaft through the cylinder. Further, a spring is inserted inside or outside.
In addition, a flexible adsorbing member is attached to the lower part of the cylinder and the part that is grounded to the floor so as to fit the floor and ground.
The shape of the cylinder includes a quadrilateral object, a triangle, a circle and other polygons as shown in FIG. 8, but the shape is not particularly limited. It only needs to be able to ground stably.
The flexible member may be detachably fitted or screwed.

The present invention has the following effects.
(1) Conventional trolleys, etc., use a method in which the wheels of the casters are pressed to apply the brakes. However, if the cart handle is operated, the cylindrical braking body will move up and down to apply the brakes, making it safe, secure and convenient. It is.
(2) Can be easily attached to any part of the carriage other than the caster part.
(3) By providing a pendulum lever and a lock function, it can be easily mounted on a cart that requires a nesting function, and is safe and optimal for storage and movement.
(4) Since a caster can be built in the cylinder, it can be applied to a place with a step and is optimal.
(5) When the cart handle is released, the brake is automatically applied, so if you have an infant on it, you can shop safely, pack it in the bag, unload it at the parking lot, etc. so you can shop safely and securely.
(7) Due to the action of the amplifying mechanism, it is possible to operate the cylindrical brake body high and strongly even with a slight wire pull at the operation lever.

It is a figure which shows schematic structure of 1st Example of this invention. It is a figure which shows the state which attached the 1st Example to the cart. It is a figure which shows schematic structure of 2nd Example of this invention. It is a figure which shows schematic structure of 3rd Example of this invention. It is a figure which shows schematic structure of 4th Example of this invention. It is a figure which shows schematic structure of 5th Example of this invention. It is a figure which shows schematic structure of 6th Example of this invention. It is a figure which shows the kind of cylindrical braking body of this invention. It is a figure which shows the cart used in the conventional shopping center.

The form of this invention is demonstrated based on an Example.

A first embodiment of the present invention is shown in FIG. 1, and the structure will be described with reference to FIG.
The grounding portion of the cylindrical braking body (1) is open, and a flexible adsorbing member (11) is attached so as to be in close contact with the floor.
The upper part of the cylindrical braking body (1) was provided with a hole penetrating the shaft (2), and the diameter of the hole was set such that the cylindrical portion could freely slide on the shaft (2). The upper part of the shaft (2) is fixed to the cart.
The spring (3) is inserted into the shaft part at the upper part outside the cylinder, and the spring (3) is compressed when the cylinder (1) is pulled up from the floor (when the brake is released), and when the pressing is released, the spring (3) is compressed. The spring is extended by the restoring force, and the cylinder descends downward to apply the brake.
To raise the cylinder, the lever (4) for rotating the cart handle (8) downward pulls the wire (52), passes through the rotary piece (72), raises the short arm (62) of the amplifying mechanism (6), (61) rotates and rotates upward to the long arm (63), and the wire (51) is pulled, the cylinder (1) is raised upward, and the brake is released.
A wire (52) is also coupled to the pendulum lever (41) to the short arm (62).
The lever (41) is used for shopping carts that require a nesting function. When the next cart is installed in the top cart at the cart yard, the top pendulum lever (41) is the tip of the rear cart. The brake is released by being pushed by the part (81) and pulled by the wire (52).
However, since the last cart is not pushed from the next cart, there is an advantage that the brake can be surely released if the clerk manually moves the handle downward to release the brake and locks the handle at this position.
However, as described below, a pendulum lever (44) and a contact rod (45) may be provided, or other methods may be used.
The structure of the lock function is to attach a plate (42) having about 2 to 3 holes to the frame of the handle, and if the handle is lowered, the handle will not rise through the pin (43) into the hole. is there.
The pulling length of the wire (51), that is, the raising height of the cylinder is adjusted by the positional relationship between the long arm (63) and the rotary piece (71).

FIG. 2 shows an outline in which the braking device of the first embodiment is attached to a shopping cart, and the structure will be described based on the drawing.
A cylindrical braking body (1) was attached in the vicinity of the front wheel of the cart. The cart handle (8) pivots downward. A lever (4) was attached to the handle part, and the handle part was provided with a lock function (42) used by an attendant.
When the handle is rotated downward, the wire (52) is pulled, the amplification mechanism is actuated, the wire (51) is pulled strongly, the cylindrical braking body is released from the floor, and the brake is released.
When the handle is released, the lever (41) is raised and the wire (52) is loosened, the spring (64) of the amplification mechanism (6) is restored, and the shaft (61) is rotated to rotate the short arm (62) and the long arm (63). ) Is pulled back, the wire (51) is loosened, and the cylinder is lowered by the restoring force of the spring (3) at the upper part of the cylindrical braking body to be braked.
As shown in the figure, a pendulum lever (41) is attached to the cart stored in the nesting function place. A wire (52) is connected to the short arm (62) from the lever.

Further, in the above embodiment, the handle portion is provided with a lock function for the nesting function, but instead of this lock function, the contact rod that kicks the pendulum lever (44) and the pendulum lever (44) of the rear cart. (45) was attached.
The pendulum lever (44) of the own cart is bounced by the contact bar (45) of the cart in front of the own cart.

A second embodiment of the present invention is shown in FIG. 3, and the structure will be described with reference to FIG.
As in the first embodiment, the cylindrical braking body (1) is attached with a flexible adsorbing member (11) so as to be in close contact with the floor.
A hole penetrating the shaft (2) is provided in the upper part of the cylindrical brake body (1), and the diameter of the hole is set to a diameter that allows the cylinder (1) to slide freely as in the first embodiment. A spring (3) was inserted into the cylinder (1).
When the lever (4) is raised, the wire (52) is pulled and the short arm (62) of the amplifying mechanism (6) is raised and the shaft (61) is rotated to rotate the wire (51) of the long arm (63). The cylinder is raised through the piece (71) to release the brake.
When the cylinder is raised, the spring (3) is extended.
When the handle is released, the lever (4) is returned, the wires (52) (51) are loosened, the springs are restored to their original length, the cylinder is lowered downward, and the brake is applied.
The action of the spring is opposite to that of the first embodiment.
The operation of the cart handle and lever is the same as in the first embodiment.
When applied to a shopping cart that requires a nesting function, a pendulum lever (41) lock function (42), or a pendulum lever (44) and a contact bar (45) are required as in the first embodiment. .

A third embodiment of the present invention is shown in FIG. 4, and the structure will be described with reference to FIG.
In this embodiment, when the lever (4) is pulled, the wire (52) is pulled and the wire (51) is pulled through the amplifying mechanism, the cylinder is lowered, and the brake is applied. At this time, the spring (3) is extended.
When the wires (51) and (52) are loosened, the cylinder (1) is raised by the restoring force of the spring (3) outside the cylinder and the brake is released.
In the present invention, the operation is opposite to that of the first and second embodiments. When the lever is pulled, the brake is applied. When the lever is released, the brake is released. Therefore, a lock function is required to keep the brake applied at all times.

A fourth embodiment of the present invention is shown in FIG. 5, and the structure will be described with reference to FIG.
In this embodiment, when the lever (4) is pulled, the wire (52) is pulled and the wire (51) is pulled through the amplifying mechanism so that the cylinder descends, comes into contact with the ground, and the brake is applied.
At this time, the spring (3) is compressed.
When the wire is loosened, the cylinder (1) is raised by the restoring force of the spring (3) and the brake is released.
As in the third embodiment, the present invention is the same as the first and second embodiments, and the brake is applied when the lever is pulled. The brake is released when the lever is released. Therefore, the brake is always applied. Requires a lock function.

  When the lever (4) is released by the action of the spring (64) attached to the short arm (62) used in the first to fourth embodiments, the short arm (62) is rotated downward to release the wire (52). Is pulled back, the long arm is also rotated downward, the wire (51) is loosened, and the spring (3) is actuated.

A fifth embodiment of the present invention is shown in FIG. 6, and the structure will be described with reference to FIG.
In the first to fifth embodiments described above, a lever mechanism is used to operate the cylindrical braking body with a wire. In this embodiment, the caster (40) is attached to the shaft (2) in the cylinder (1). That is, the cylinder can be pressed with a small force using the lever principle (31) and the lever principle (31).
The release of the brake is a structure in which the cylinder (1) is lifted by the restoring force of the spring (3) if it is restored to the position based on the operating lid (30).
The present invention is in combination with a caster (40). There is a big effect to eliminate the damage of the tube due to the step of the floor.

A sixth embodiment of the present invention is shown in FIG. 7, and the structure will be described with reference to FIG.
As shown in the figure, the difference between this embodiment and the fifth embodiment is that if the cylinder (1) is directly pressed downward by the operating rod (20) to apply the brake and the operating rod (20) is pulled up, the spring In this structure, the cylinder (1) is pulled up by the restoring force (3) to release the brake.
The upper and lower positions of the operating rod (10) are structured such that the grip portion (21) of the operating rod is inserted into the groove of the locking plate (22).

DESCRIPTION OF SYMBOLS 1 Cylindrical braking body 11 Flexible adsorption member 2 Axis 3 Spring 4 Lever 41 Pendulum lever 42, Lock mechanism plate 43 Pin 44 Pendulum lever 45 Contact rod 51 Wire 52 Wire 6 Amplifying mechanism 61 Amplifying mechanism shaft 62 Short arm 63 Long arm 64 Spring 71 Rotating piece 72 Rotating piece 8 Cart handle 81 Cart tip 9 Contact piece 20 Operating rod 21 Operating rod grip 22 Locking plate 30 Operating blade 31 Support point 40 Caster 50 Cart

Claims (8)

A shaft is slidably penetrated into the upper central portion of the cylindrical body whose upper part is closed, and a spring is inserted into the cylindrical body inside or outside the cylindrical body to form a cylindrical braking body. the shank are on the outside and fixed to any frame of the wheelbarrow, further wheelbarrow brake device characterized in that a means for pointing vertically moving the cylindrical braking member. A shaft is slidably penetrated into the upper central portion of the cylindrical body whose upper part is closed, and a spring is inserted into the cylindrical body inside or outside the cylindrical body to form a cylindrical braking body. Fixing the shaft part outside to an arbitrary frame of the wheelbarrow , and pulling the wire with a lever mechanism as a means for moving the cylindrical braking body up and down raises the cylindrical braking body to release the brake, A brake device for a handcart characterized in that when the pulling force of the wire is released, the cylindrical braking body descends by the restoring force of the spring and the brake is applied. A shaft is slidably penetrated into the upper central portion of the cylindrical body whose upper part is closed, and a spring is inserted into the cylindrical body inside or outside the cylindrical body to form a cylindrical braking body. If the shaft part that is outside is fixed to an arbitrary frame of the handcart and the wire is pulled by a lever mechanism as a means for moving the cylindrical braking body up and down, the cylindrical braking body descends and the brake is applied. pulling force the tubular damping body wheelbarrow brake device is characterized in that a structure in which the brake is released to rise in the restoring force of the spring when releasing the. 4. The handcart brake device according to claim 2, wherein the length of the wire pulled is adjusted by an amplification mechanism. In Wheelbarrow braking device according to any one of claims 1 to 4, wheelbarrow brake apparatus, characterized in that the brake is provided with a means which is released when the wheelbarrow come into contact with each other. A shaft is slidably passed through the upper central portion of the cylindrical body whose upper portion is closed, and a spring is inserted into the shaft inside or outside the cylindrical body to form a cylindrical braking body. the shank emanating fixed to any frame of the wheelbarrow, the tubular brake member as vertical movement refers unit, the tubular brake member if defeat an L-shaped operating drought running on the lever principle forward head is directly presser descends only braking operation NOTE wheelbarrow brake apparatus, wherein by pulling the original state elevated in the restoring force of the spring that has been structured to release the brakes. A shaft is slidably passed through the upper central portion of the cylindrical body whose upper portion is closed, and a spring is inserted into the shaft inside or outside the cylindrical body to form a cylindrical braking body. The protruding shaft is fixed to an arbitrary frame of the wheelbarrow, and as a means for moving the cylindrical brake body up and down , the head of the cylindrical brake body is directly pressed and lowered with an operating rod that moves up and down to brake. the pawl in place, rises and wheelbarrow brake device is characterized in that a structure for releasing the brake by restoring force of the spring when brought into returning to the original state by increasing the operating rod. The handcart brake device according to any one of claims 1 to 7, wherein a caster is attached to a shaft end portion inside the cylindrical brake body.

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