JPH09277938A - Brake and stop lock mechanism for handcart - Google Patents

Abstract

PROBLEM TO BE SOLVED: To compose both a brake mechanism and a stop lock mechanism as a single mechanism. SOLUTION: On a handcart for an aged person provided with wheels 4, a baggage receiving part, and a handle part 10, a brake handle 12 is installed close to the handle part 10. This brake handle 12 is actuated to pull a brake wire 15 from a neutral position of it, so a brake shoe 28 provided on a brake actuation rod 16 at a tip of the brake wire 15 brakes the wheels 4. A stopper 20 to decide the neutral position of the brake handle 12 is provided close to an installation position of the brake handle 12, and as this stopper 20 is released, the brake handle 12 is moved by a coil spring 19 from the neutral position in the opposite direction to the braking actuation direction for interlocking a stop lock stopper 30 provided on the brake actuation lever 16 to be engaged with engagement receiving parts 25 provided radially on an inner side surface of the wheel 4 to stop rotation of the wheel 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a brake (brake) mechanism and a stop lock mechanism of a pushcart such as an elderly car (handcart for carrying luggage for the elderly), a stroller, or a shopping cart. And those that can perform both of these braking and stop lock functions.

[0002]

2. Description of the Related Art In various conventional handcarts, the braking mechanism and the stop lock mechanism for stopping the movement of the handcart are constituted by completely different independent mechanisms. That is, in the braking mechanism, by rotating a brake handle that is rotatably attached to an appropriate position of a handle portion of a handcart, a brake wire connected to the brake handle is pulled and is connected to a tip of the brake wire. The brake operating rod is operated, and the brake shoe provided on the brake operating rod comes into contact with the outer peripheral portion of the wheel of the handcart to brake the wheel. When releasing the brake, by releasing the hand from the brake handle, the urging force of the spring provided on the brake operating rod returns the pulled brake wire to its original state, and at the same time, the brake handle also returns to its original position. The braking of the wheels is released by returning to.

On the other hand, a stop lock mechanism for a handcart is formed completely independently of the above-mentioned braking mechanism. For example, a plurality of ridges are provided radially inside the center of one wheel inside a wheel. A stopper that engages the strip is provided near the axle of the wheel, and a pedal or the like for operating the stopper is connected to the stopper, and the pedal is operated by the foot or the like to engage the stopper with the protrusion. It was possible to completely stop the rotation of the wheels.

[0004]

In the above-mentioned conventional braking mechanism and stop lock mechanism, it is necessary to independently provide two mechanisms, that is, a brake and a side brake. Further, conventionally, the brake handle is usually provided near the handle portion, and the operation pedal of the stop lock mechanism as the side brake is located near the wheel portion and is operated by the foot. Therefore, the operation had to be performed separately using both hands and feet. In particular, in the case of an elderly person who uses an elderly car, it is extremely troublesome to operate the brake and the side brake by using both hands and feet in this way. Therefore, in the present invention, it is an object of the present invention to provide both the braking mechanism and the stop lock mechanism with one mechanism and to operate the both mechanisms only by operating the handle portion. . As a result, the structures of the braking mechanism and the stop lock mechanism can be simplified and the convenience of operation can be improved.

[0005]

In order to solve the above-mentioned problems, a first aspect of the present invention is an elderly car including wheels, a luggage receiving portion, and a handle portion such as a puller or a pusher. , A stroller such as a stroller or a shopping cart, the brake handle 12 is attached at an appropriate position,
When the brake handle 12 is actuated, the brake wire 15 is attracted, which increases the frictional resistance of the wheels 4 to brake the wheels 4, and when the operation of the brake handle 12 is released, elasticity of a spring or the like is released. Body 19
The brake handle 12 is returned to the original neutral position by the urging force of the wheel 4 to release the braking of the wheels 4, and a stopper 20 for determining the neutral position of the brake handle 12 is provided in the vicinity of the attachment position of the brake handle 12. By providing the stopper 20 and releasing the stopper 20, the urging force of the elastic body 19 causes the brake handle 12 to shift from the neutral position to a direction opposite to the operating direction for braking, and the rotation of the wheels 4 is accompanied by this shift. The stop lock stopper 30 for disabling works together to prevent the wheel 4 from rotating.

A second aspect of the present invention is a handcart such as an elderly car, a stroller, or a shopping cart, which is provided with wheels, a luggage receiving portion, and a handle portion such as a puller or pusher. Brake handle 1 in 10 appropriate positions
2 is attached and the brake handle 12 is operated to pull the brake wire 15 and the brake operating rod 16 connected to the tip end of the brake wire 15 is interlocked, whereby the brake provided on the brake operating rod 16 is connected. When the shoes 28 come into contact with the wheels 4 to brake the wheels 4 and release the operation of the brake handle 12,
Elastic body 1 such as a spring attached to the brake operating rod 16
The brake handle 12 is returned to the original neutral position by the urging force of 9, so that the braking of the wheels 4 is released.
A stopper 20 for determining the neutral position of the brake handle 12 is provided in the vicinity of the mounting position of the brake handle 12, and the brake handle 12 is braked from the neutral position by the urging force of the elastic body 19 by releasing the stopper 20. To the opposite direction, the stop lock stopper 30 provided on the brake operating rod 16 is interlocked with this shift, and the stopper 30 is provided on one surface of the wheel 4 in a circumferential shape. The wheels 4 are engaged with the plurality of engagement receiving portions 25 at predetermined intervals to prevent the wheel 4 from rotating.

As a result, when the brake is applied,
By operating the brake handle 12 provided on the handle portion 10, the brake wire 15 is pulled, the brake operating rod 16 provided at the tip thereof is interlocked, and the brake shoe 28 provided on the brake operating rod 16 is The wheel 4 is contacted and the brake is applied. When the operation of the brake handle 12 is released, the brake handle 12 is returned to the original neutral position by the urging force of the elastic body 19 attached to the brake operating rod 16, and the brake is released. When stopping the rotation of the wheel of the wheelbarrow, the stopper 20 that determines the neutral position of the brake handle 12
Operate and cancel. Thereby, the elastic body 19
Is actuated, the brake handle 12 moves from the neutral position to the direction opposite to the operating direction for braking, and at the same time, the brake operating rod 16 at the tip of the brake wire 15 also interlocks, and the stop lock stopper provided on this When the wheel 30 operates and engages with the engagement receiving portion 25 provided on the wheel, the rotation of the wheel is completely stopped.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The accompanying drawings all illustrate embodiments of the present invention. FIG. 1 is an overall perspective view of a baggage cart (an old man's car) for an old man seen from diagonally behind, showing an embodiment of the present invention. The overall form thereof will be outlined below, but the details of the individual constituent elements that are the characteristic parts of the present invention will be described later in detail with reference to other drawings. The main frame, which constitutes the frame of the vehicle body, includes front frames 2 and 2 having front wheels 1 attached to their lower ends.
A tilt frame 3 rotatably attached to each of the front frames 2 and rear wheels 4 attached to lower ends of the tilt frames 3, respectively. Rear frame 5 in contact
And a horizontal frame 6 rotatably mounted above each of the rear frames 5.
On the front side of, the upper end of the front frame 2 is rotatably attached. Therefore, this main frame can be entirely folded toward the rear frame 5. A luggage storage bag 8 as a luggage receiving portion is attached to the center of the main frame.

At both upper ends of the rear frames 5 and 5,
Both legs 11, 11 of the substantially U-shaped handle portion 10 are connected, and the height of the handle portion 10 can be appropriately adjusted. A brake handle 12 is rotatably supported by a shaft portion 13 on both legs 11 of the handle portion 10. Although not clearly shown in FIG. 1, the brake handle 12 is positioned in front of the handle portion 10 with a certain angle of inclination. The position in the state of being tilted by a certain angle is an angle or a position within a range in which the fingers of the hand can be extended while reaching the grip portion 10. This state
The brake handle 12 is in the neutral position, and the handcart is not braked.

By pulling the brake handle 12 toward the handle portion 10 by hand, both ends of the brake handle 12 are also rotated, and the brake wire 15 is pulled along with this rotation. Brake wire 15
Has its upper end connected to the brake handle 12 and has its lower end connected to the brake operating rod 16. When the brake wire 15 is pulled, the brake operating rod 16
The force is transmitted to the brake actuating rod 16 and the brake actuating rod 16 rotates at a portion pivotally supported by the tilting frame 3, and the brake shoes 28, 28 extended to both ends of the brake actuating rod 16 are provided on both rear wheels 4, 4. Braking is performed by contacting the outer peripheral surface of the. The brake operating rod 16 is constantly urged by a coil spring 19 in a direction for releasing the brake.

On the other hand, the stop lock operation for completely stopping the movement of the handcart is performed by operating the stopper 20 provided below the pivotal support position of the brake handle 12. That is, the stopper 20 serves as a stop lock operation button for the handcart. The stopper 20 also has a function of determining the neutral position of the brake handle 12, that is, the stopper 20.
Is always biased upward by the coil spring 21, and in this state, the brake handle 12 is always prevented from rotating clockwise in the drawing, and the neutral position of the brake handle 12 is secured.

As described above, the stopper 20 also serves as a stop lock actuating button for actuating the stop lock function of the elderly car as a side brake at the same time, that is, the stopper 20 opposes the urging force of the spring 21. Then, the brake handle 12 releases the securing of the neutral position by pushing the coil spring 1 downward.
By the action of 9, it rotates clockwise in the drawing. With this rotation, the brake wire 15 acts so as to push out the brake operating rod 16, and the brake operating rod 16 rotates in the direction opposite to that in the braking operation and is extended to both ends of the brake operating rod 16. The stop lock stopper 30 is provided on the inner surface of the rear wheel 4 in a radial manner from the center thereof.
By engaging between 5 and 25, the rotation of both rear wheels 4, 4 can be completely stopped and locked. The protrusion 25 serves as an engagement receiving portion that engages with the stop lock stopper 30. To release the stop lock, the brake handle 12 is pulled toward the neutral position, that is, toward the handle portion 10 (counterclockwise in the drawing), and the stopper 2 is pulled.
0 is automatically returned by the action of the coil spring 21, the brake handle 12 is secured in the neutral position, and the stop lock is released.

FIG. 2 is an enlarged perspective view of the portion of the brake handle 12, showing the state where the brake handle 12 is in the neutral position, and the elderly car is ready to run. Both ends of the brake handle 12 are grips 10
By the action of the coil spring 19 which is pivotally attached to the both leg portions 11, 11 at the shaft portions 13 and 13 and which urges the brake actuating rod 16 provided at the tip of the brake wire 15, the shaft portion 13 is always clockwise in the figure. It is biased (pulled) in the direction. A stopper 20 is provided below the shaft portion 13 so as to prevent the clockwise biasing force of the shaft portion 13.

The stopper 20 is slidable up and down, and is constantly urged upward by a coil spring 21. By pushing down the stopper 20 in the downward direction, the rotation inhibition of the brake handle 12 is released, and the brake handle 12 further rotates clockwise around the shaft portion 13 and is provided near the wheel 4. The stop lock stopper 30 operates to lock the stop of the elderly car. As will be described in detail with reference to FIG. 6 and subsequent figures, the substantially cylindrical housing 4 is provided at both ends of the brake handle 12.
1 is provided, and inside this, the brake wire 15
The end portion of the wire 15 is gripped, and the wire 15 is drawn by the rotation of the brake handle 12.

FIG. 3 is an enlarged perspective view of the portion of the brake handle 12 as well, and shows the state in which the brake handle 12 is pulled toward the handle portion 10 and the brake is applied. For the brake handle 12, the fingers of the hand grasping the handle portion 10 are extended, and the brake handle 12 is hooked with the finger so that the handle portion 10 is grasped.
Can be drawn to the side of. As a result, the brake handle 12 rotates about the shaft portion 13, the brake wire 15 is pulled at the same time, and the brake operating rod 16 connected to the tip of the brake wire 15 rotates.
The brake shoes 28 extending from both ends of the brake operating rod 16 come into contact with the outer peripheral surfaces of the rear wheels 4 to apply a brake.

FIG. 4 is also an enlarged perspective view of a portion of the brake handle 12, showing a stop lock state. In this stop lock state, the stopper 20 serving as a stop lock operation button is pushed downward, and the coil spring 21 is in a contracted state. In this state, the brake handle 12 moves from the neutral state shown in FIG. 2 to the shaft portion. It is in a state of being further rotated rightward in FIG. At this time, as will be described in detail later, the stopper 20 maintains the state in which it is pushed downward by the internal structure of the shaft portion 13 of the brake handle 12. In this state, the stop lock stoppers 30 provided at both ends of the brake operating rod 16 provided at the tip end of the brake wire 15 are actuated to stop and lock the elderly car.

FIG. 5 is an enlarged perspective explanatory view of a portion of the brake actuating rod 16 and shows a state in which the brake handle is at the neutral position. The brake operating rod 16 has at least a brake shoe 28 for braking.
And a stop lock stopper 30 for stopping the rotation of the wheels.
Is appropriately attached to the inclined frame 3 at the attachment portion 33,
By the rotation of the brake operating rod 16, that is, by rotating in one direction, braking is performed by the brake shoe 28, and by rotating in the opposite direction, the stop lock stopper 30 operates. Anything can be used as long as the rotation of the wheels can be stopped and locked. The brake shoe can be applied not only to the outer peripheral surface of the rear wheel 4 but also to the axle of the rear wheel 4. Further, the brake operating rod 16 may be configured to act only on one rear wheel 4 side, but it is preferable to configure the brake operating rod 16 to act on both rear wheels 4 for safety. The specific form of the brake actuating rod 16, that is, the specific form of each of the brake shoe and the stop lock stopper 30 can be variously changed in design, and one example thereof will be shown below.

5 shows an example thereof, the brake actuating rod 16 includes a substantially horizontal horizontal rod 26, and extending portions 27 extending downward from both ends of the horizontal rod 26, respectively. Brake shoe 2 bent outward from the installation part at a right angle
8, a diagonally extending portion 29 extending diagonally rearward from both ends of the horizontal rod 26, and a stop lock stopper 30 bent outward at the tip of the diagonally extending portion 29. A brake wire 15 is connected and fixed by a screw to one side of the brake operating rod 16, and a coil spring 19 is interposed between the connecting portion 31 and a support portion 32 of the brake wire 15. As a result, the brake operating rod 16 is attached to the shaft mounting portion 3 of the brake operating rod 16.
It is always urged clockwise around the center of FIG.

More specifically, the brake wire 15 is covered with a tube 35 made of synthetic resin, the brake wire 15 is inserted through the tube 35 made of synthetic resin, and only the brake wire 15 of the brake handle 12 is provided. Attracted by the turning motion,
It can be pushed out and transferred. Therefore, when the brake handle 12 is pulled toward the handle portion 10 and a braking operation is performed, the brake wire 15 causes the brake handle 12 to move.
The brake actuating rod 16 is pulled to the front side (left side) in the figure against the urging force of the coil spring 19 which tends to extend. As a result, the brake operating rod 1
The brake actuating rod 16 rotates counterclockwise at the shaft attachment portion 33 of No. 6, the brake shoe 28 moves in the direction of the arrow P in the drawing, contacts the outer peripheral surface of the rear wheel 4, and the brake is applied.

On the other hand, when the stopper 20 provided on the side of the brake handle 12 is pushed down, the brake wire 1 follows the urging force of the coil spring 19 which tends to expand.
5 is pushed to the right in the figure, whereby the brake operating rod 16 pivots clockwise in the shaft attachment portion 33 of the brake operating rod 16, whereby the stop lock stopper 3
0 moves in the direction of arrow Q. On each back side of the rear wheel 4, a plurality of protrusions 25 are provided as an engagement receiving portion radially around the shaft portion thereof at equal intervals, and the stop lock stopper 30 moves in the direction of arrow Q. As a result, the stopper 30 can enter between the ridges 25 and stop the rotation of the wheel 4.

The tip of the protrusion 25 is formed in a circular cross-section so that the stop lock stopper 30 can easily enter between the protrusions 25. Further, the projections 25 do not necessarily have to be provided in a completely radial pattern, and may be provided appropriately inside the wheel 4 from its central portion side toward its outer peripheral portion side. May be provided for good engagement with. Therefore, the protrusion 25 as the engagement receiving portion may be formed by a projection having a short length, that is, it may be implemented by a projection provided on the rear surface of the wheel at regular intervals circumferentially.

The coil spring 19 is an example, and various springs can be used instead of the coil spring 19, and the coil spring 19 can be implemented without being provided along the brake wire 15. For example, a coil spring is provided so as to bridge the connecting frame 40 and the brake operating rod 16 which are bridged over both the tilted frames 3, and the brake operating rod 16 is always applied with a clockwise biasing force at its shaft attachment portion 33. You can leave it. Other springs can be implemented by various elastic bodies such as leaf springs and linear springs. The shape of the brake shoe 28 can be appropriately changed in design, and may be a round bar shape instead of a plate shape.

Next, the internal structure of the brake handle 12 at the neutral position, the braking position, and the stop lock position will be described. FIG. 6 shows a state in which the brake handle 12 is in the neutral position, and (A) shows the brake handle 12.
2B is a schematic cross-sectional view of the root part of FIG. An upper end of the brake wire 15 is gripped and fixed by a grip 42 in a substantially cylindrical housing 41 provided at appropriate positions of both legs 11 of the grip 10. When the brake handle 12 rotates leftward about the shaft portion 13 (when pulled toward the handle portion side), the cylindrical portion 43 connected to the end portion of the brake handle 12 rotates,
The grip portion 42 connected to the cylindrical portion 43 also rotates at the same time,
The brake wire 15 can be pulled.

On the other hand, even if the brake handle 12 is to be rotated rightward about the shaft portion 13, the stopper 2
The presence of the protruding portion 44 at the front end of 0 and the fixing portion 45 located on the left side of the protruding portion 44 in the figure prevent the rotation, and the rotation does not occur in this direction at all. The stopper 20 is constantly urged upward by the coil spring 21, and the grip portion 42 can be rotated rightward about the shaft portion 13 by pushing the stopper 20 downward by hand force. In the illustrated state, the brake handle 12 is in a neutral state, neither the brake nor the stop lock is working, and the elderly car is in a movable state. That is, FIG. 6B shows the state of the brake operating rod 16 in this state, and the extension portion 27 extended from the brake operating rod 16 is shown.
The brake shoe 28 provided at the tip of the rear wheel 4
On the other hand, the stop lock stopper 30 provided at the distal end of the obliquely extending portion 29 extending from the brake actuating rod 16 on the other hand is also provided on the rear side of the rear wheel 4. The ridge 25 is not engaged.

FIG. 7 shows a state in which the brake handle 12 is in the braking position, (A) is a schematic sectional view of the root portion of the brake handle 12, and (B) is the side of the brake operating rod 16. It is explanatory drawing which shows a state. The brake handle 12 is rotated in the direction of the arrow R in the drawing (pulled to the handle portion side). Then, the grip portion 42 also rotates counterclockwise around the shaft portion 13 in conjunction with this. As a result, the brake wire 15 is pulled in the direction of arrow S. When the brake wire 15 is pulled in the direction of the arrow S, as shown in FIG.
Comes into contact with the outer peripheral surface of the rear wheel 4 and the brake is applied.

FIG. 8 shows a state in which the brake handle 12 is in the stop lock position, (A) is a schematic sectional view of the root portion of the brake handle 12, and (B) is the side of the brake operating rod 16. It is explanatory drawing which shows the state of. The stop lock state is achieved by pushing down the stopper 20 which is the stop lock operating button by hand. When the stopper 20 is pushed down, the protruding portion 44 provided at the upper end portion thereof is also pulled down, and the brake wire 15 is always urged in the direction of the arrow U in the figure, so the brake wire 1
The grip portion 42 of 5 rotates clockwise around the shaft portion 13. Along with this, the brake handle 12 also rotates clockwise around the shaft portion 13. As a result, the brake wire 15 moves in the direction of the arrow U and operates so as to push the brake operating rod 16 at the tip. At this time, stopper 2
The protruding portion 44 at the upper end of 0 abuts on the outer peripheral surface of the grip portion 42, and the stopper 20 remains pressed down.

By operating the brake operating rod 16, as shown in FIG. 8B, the brake operating rod 16 is operated.
Rotates rightward about the shaft attachment portion 33, and the stop lock stopper 30 is fitted between the protrusions 25 provided on the rear surface of the rear wheel 4 to stop the rotation of the rear wheel 4. be able to. To release the stop lock, the brake handle 12 is pulled toward the handle portion 10 so that the stopper 20 returns to the original upper position.
It is easily performed by returning by the action of.

The various embodiments have been described above.
The form can be changed as follows. First, as a handcart to which the present invention is applied, not only the above-mentioned old car, but also a stroller, a shopping cart and the like can be mentioned. In the above-described embodiment, the braking action and the stop lock action are applied to both the rear wheels, but it is also possible to implement the mode in which only one rear wheel acts. However, for safety, it is preferable to provide the wheels on both sides.

In the above embodiment, the brake handle 12 has an inverted U-shape and is rotatably attached at both ends thereof, but this shape allows the user to hold the handle. It is designed so that the brake handle 12 can be easily held and the braking operation can be performed by extending the fingers of both hands in the state where the shape is kept and the mounting method is freely designed. be able to. For example, the brake handle may not be pivotally attached at both ends thereof, and the brake handle may be pivotally attached to one side by forming it into a cock-like shape as an operating rod. In this case, this cock-shaped member can be attached to the outside of the leg portion of the handle portion.
Of course, the mounting position of the stopper as the stop lock operating button can be changed according to this configuration.

Further, the brake handle 12 can be implemented without being pivotally attached to the handle portion 10. In other words, the brake handle can be pulled or pushed out by operating the brake wire, and the brake wire can be connected to the brake handle and pulled directly to the brake wire. Can also be configured so that they can be attracted at the same time. In this case, place a stopper at the neutral position where the brake handle is pulled back, and by releasing this stopper, the brake handle moves from the neutral position to the direction opposite to the direction in which the brake is applied, and the stop lock stopper is activated. It should be configured so as to allow it. The position at which the tip of the brake wire 15 is attached to the brake operating rod 16 is completely free, and may be connected at the substantially central portion of the horizontal rod 26.

The shape and size of the stopper 20 can be freely designed, and the protrusion 4 provided at the upper end thereof.
The shape and size of 4 can be freely designed. For example, it is possible to form the stopper 20 that slides in the vertical direction so as to slide in the horizontal direction, and the mounting position thereof may not be provided below the cylindrical housing 41 but may be provided at another position. It is possible. The spring for applying the urging force to the stopper 20 may be another type of spring instead of the coil spring 21, and the design of these stoppers 20 can be variously changed.

The shape of the brake operating rod 16 and the shapes of the brake shoe 28 and the stop lock stopper 30 provided therein can be freely changed in design. As described above, in these configurations, braking is performed by rotating the brake actuating rod 16 at its shaft attachment portion 33, that is, by rotating in one direction, and in the other opposite direction. Therefore, the stop lock stopper 30 may be configured to operate. Further, in the above-described embodiment, the rotating direction is also axially mounted so as to rotate in a substantially vertical plane. However, this rotating direction is arranged so as to rotate in a substantially horizontal plane, that is, in the shaft mounting portion. It is also possible to mount the brake operating rod 16 on the inclined frame 3 with the shaft portion in the vertical direction. As described above, the present invention
The design can be changed freely within the scope of the claims.

[0033]

The present invention has the following effects. In both the first and second aspects of the present invention, a stop lock mechanism for completely stopping the movements of the braking mechanism and the handcart is 1
They could be combined into one mechanism, and both functions could be realized by one mechanism. Therefore, both mechanisms can be operated only by the operation of the handle portion, and the convenience thereof can be improved. Especially for the elderly, both operations can be performed only by the operation at hand, which is extremely convenient. Furthermore, the structure of the braking mechanism and the stop lock mechanism can be simplified, which contributes to reduction of manufacturing cost and product cost. As described above, the present invention exerts a great effect.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an elderly car showing an embodiment of the present invention as seen obliquely from the rear.

FIG. 2 is an enlarged perspective view of a portion of a brake handle of the elderly car shown in FIG. 1, showing a neutral position of the brake handle in a movable state of the elderly car.

3 is an enlarged perspective view of a portion of a brake handle of the elderly car shown in FIG. 1, showing a braking position of the brake handle in a braked state.

4 is an enlarged perspective view of a portion of a brake handle of the elderly car shown in FIG. 1, showing a position of the brake handle in a stop lock state.

5 is an enlarged perspective view of a portion of a brake operating rod of the elderly car shown in FIG. 1. FIG.

FIG. 6 is a brake handle 12 of the elderly car shown in FIG.
Is in a neutral position, (A) is a schematic sectional view of a root portion of the brake handle 12, and (B) is an explanatory view showing a side of the brake operating rod 16.

FIG. 7 is a brake handle 12 of the elderly car shown in FIG.
Shows a state when is in the braking position, (A) is a schematic cross-sectional view of the root portion of the brake handle 12, and (B) is an explanatory view showing the side of the brake operating rod 16.

FIG. 8 is a brake handle 12 of the elderly car shown in FIG.
Shows the state when the vehicle is in the stop lock position.
Is a schematic cross-sectional view of the root portion of the brake handle 12,
(B) is an explanatory view showing the side of the brake operating rod 16.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Front wheel, 4 ... Rear wheel, 10 ... Handle part, 11 ... Leg part, 12 ... Brake handle, 13 ... Shaft part, 15 ... Brake wire, 16 ... Brake actuating rod, 19, 21 ... Coil spring, 20 ... Stopper , 25 ... ridges, 28 ... brake shoes, 30 ... stop lock stoppers, 33 ... shaft mounting portion

Claims (2)

[Claims] 1. A handcart such as an elderly car, a stroller, or a shopping cart equipped with wheels, a luggage receiving portion, and a handle portion such as a puller or pusher, and a brake handle (12) at an appropriate position thereof. The brake wire (15) is pulled by actuating the brake handle (12), which increases the frictional resistance of the wheel (4) and brakes the wheel (4). When the operation of (12) is released, the brake handle (12) returns to its original neutral position by the urging force of the elastic body (19) such as a spring, which releases the braking of the wheels (4) and A stopper (2) that determines the neutral position of the brake handle (12) is located near the mounting position of the handle (12).
0) is provided and the stopper (20) is released, and the brake handle (1
2) shifts from the neutral position to the direction opposite to the braking direction, and along with this shift, the stop lock stopper (30) that disables rotation of the wheels (4) interlocks and the wheels (4 ) A brake and stop lock mechanism for a handcart, which is characterized by blocking the rotation of the. 2. A wheelbarrow such as an elderly car, a stroller, or a shopping cart equipped with a wheel, a luggage receiving portion, and a handle portion such as a puller or pusher is provided at an appropriate position of the handle portion (10). By installing the brake handle (12) and operating this brake handle (12),
The brake wire (15) is pulled, and the brake operating rod (16) connected to the tip of the brake wire (15) is interlocked, whereby the brake shoe (28) provided on the brake operating rod (16) is attached to the wheel. When the wheel (4) is braked by touching (4) and the brake handle (12) is released, the braking force is applied by the elastic body (19) such as a spring attached to the brake operating rod (16). The handle (12) returns to its original neutral position,
As a result, the braking of the wheels (4) is released, and the stopper (2) that determines the neutral position of the brake handle (12) is located near the position where the brake handle (12) is attached.
0) is provided and the stopper (20) is released, and the brake handle (1
2) shifts from the neutral position to the direction opposite to the braking direction, and along with this shift, the stop lock stopper (30) provided on the brake lever (16) is interlocked, and this stopper (3
0) engages with a plurality of engagement receiving portions (25) provided at predetermined intervals on one surface of the wheel (4) and prevents rotation of the wheel (4). Brake and stop lock mechanism for wheelbarrow.