JP2006213111A - Braking device in baggage cart - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily perform, in a baggage cart such as a meal serving wagon having both the maintaining function of a halt condition and the speed reduction function on the move, these operations. <P>SOLUTION: In this brake device, the upper end of a first connecting member 18 is rotatably connected via a hinge 15 to a base part of at least its one handle lever 11 among handle levers 11 and 41 installed in both side parts 1a and 1b of the meal serving wagon 1. One end of a substantially toppled L-shaped second connecting member 21 rotatably journaled to an outside bottom surface of a meal serving wagon 1 body, is rotatably connected via a pin to the lower end of the first connecting member 18. One end of a third connecting member 26 is also rotatably connected via a pin to the other end of the second connecting member 21, and the other end of the third connecting member 26 is connected to a fourth connecting member 31 installed in an operation part 28a of a brake drum 28 of a wheel 27, and operation of the handle lever 11 and operation of the brake drum 28 are interlocked. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a brake device in a cart used for distributing food in a hospital, a nursing home, etc., and a cart such as a cart used for carrying goods and luggage in a home center, a supermarket, or an airport.

  As shown in FIGS. 15 and 16, in the conventional distribution vehicle 71, a floor stopper 76 having a lock pedal 73, a release pedal 74, and a stopper pad 75 is attached between the front and rear wheels 72 at the end of the bottom surface 71 a. It was.

  And when serving food in a hospital or the like, after the user moves the distribution car to the vicinity of the entrance of each room, the user steps on the lock pedal 73 in the floor stopper 76 to bring the stopper pad 75 into contact with the floor, By suspending the wheel 72 of the layout vehicle 71 from the floor, the layout vehicle 71 was stopped. After that, when moving the distribution vehicle 71 to the next room, the release pedal 74 was stepped on to bring the wheel 72 into contact with the floor.

  A brake lever 82 to which one end of the brake wire 83 is connected is provided at the center of the U-shaped handle 81 attached to the side wall 71b of the layout wheel 71, and the other end of the brake wire 83 is connected to the layout bar. It was arranged on the bottom surface 71a of the car 71, and its tip was connected to a drum brake (both not shown) provided on the wheel of the bottom surface 71a.

When the user holds the handle 81 and pushes or pulls the layout vehicle 71 to move the brake, the brake is released by holding the brake lever 82 when the traveling speed of the layout vehicle 71 is reduced. It worked.
JP 2002-264794 A

  In the conventional distribution vehicle 71 described above, when food is distributed in a hospital or the like, the user steps on the lock pedal 73 in order to maintain the stopped state of the distribution vehicle 71 at the entrance of each room, and after the distribution is completed, When moving to the room, the user must repeatedly perform the operation of stepping on the release pedal 74. Further, when it is necessary to hurry up, there is a risk of forgetting to step on the lock pedal 73.

  Further, when the speed of the layout car 71 is reduced, when the speed of the movement is reduced, the handle 81 of the layout car 71 is held with one hand while pushing or pulling the layout car 71 and the brake lever 82 with the other hand. This situation is difficult because it is necessary to hold

  In the above-described conventional layout vehicle 71, it is necessary to provide the floor stopper 76 in order to maintain the stop state, and to provide the brake lever 82 in order to decelerate at the time of movement. The car 71 required two brake devices.

  An object of the present invention is to provide a brake device that has both a maintenance function of a stopped state and a deceleration function during movement in a wheelbarrow such as a wheelbarrow and that can be easily operated.

  The present invention according to claim 1 includes a handle lever attached to one side of the handcart main body, a braking means provided on the wheel, and an interlocking means for interlocking the braking means and the handle lever. When the wheel is in the fixed position, the braking means stops the wheel via the interlocking means, and when the handle lever is rotated from the fixed position, the stopping state of the wheel by the braking means is released via the interlocking means. The present invention relates to a brake device in a handcart.

  According to a second aspect of the present invention, the brake device for a handcart according to the first aspect further includes a spring for returning the handle lever to a fixed position.

  According to a third aspect of the present invention, in the brake device for a handcart according to the second aspect, the interlocking means is an axial first connecting member whose one end is rotatably connected to the base of the handle lever via a pin. A second connection member having a substantially inverted L shape when viewed from the front, one end of which is rotatably connected to the other end of the shaft-shaped first connection member via a pin, and one end of the second connection member. A shaft-like third connecting member that is pivotally connected to the end via a pin, one end side portion is connected to the shaft-like third connecting member, and the other end side portion is connected to the operating portion of the braking means in the wheel. A fourth connecting member and a spring for returning the fourth connecting member to a fixed position, and the shaft-like first connecting member extends from one side of the handcart body to the outer bottom surface of the handcart body, The bent portion of the second connecting member, which is substantially inverted L-shaped, rotates to a portion closer to one side of the outer bottom surface of the handcart main body. The shaft-like third connecting member extends from the portion closer to one side of the outer bottom surface of the handcart main body to the vicinity of the wheel, and the fourth connecting member is provided between the pair of wheels. Is.

  According to a fourth aspect of the present invention, in the brake device for a handcart according to the third aspect, a shaft portion in which the fourth connecting member is secured between the operating portions of the braking means in the pair of wheels, and a shaft in the shaft portion. And a V-shaped portion formed on the side edge of the third connecting member, and the tip of the V-shaped portion is connected to the other end of the shaft-shaped third connecting member.

  The present invention according to claim 5 is the brake device in the handcart according to any one of claims 1 to 4, wherein the other side handle lever attached to the other side portion of the handcart main body, It further comprises an other side spring for returning the other side handle lever to a fixed position, and another side linkage means for linking the other side handle lever and the wheel braking means. When the other side handle lever is in a fixed position, the other side is linked. The braking means is configured to stop the wheel via the means, and when the other side handle lever is rotated from the fixed position, the wheel stopping state by the braking means is released via the other side interlocking means. It is.

  According to a sixth aspect of the present invention, in the brake device for a handcart according to the fifth aspect, the other-side interlocking means has one end rotatably connected to the base of the other-side handle lever via a pin. A shaft-like first connecting member; and a second L-side second connecting member having an L-shape when viewed from the front in which one end is rotatably connected to the other end of the other-side shaft-like first connecting member via a pin; One end is rotatably connected to the other end of the other side second connecting member via a pin, and the other end has an other side shaft-like third connecting member connected to the fourth connecting member. The side shaft-shaped first connecting member extends from the other side portion of the handcart main body to the outer bottom surface of the handcart main body, and the bent portion of the substantially L-shaped second side second connecting member has an outer bottom surface of the handcart main body. The other side shaft-like third connecting member is pivotally supported by a portion near the other side portion, and the other side portion near the other side portion of the outer bottom surface of the handcart main body. And it is characterized in that it extends to near Luo wheels.

  According to a seventh aspect of the present invention, in the brake device for a handcart according to the first aspect, the interlocking means includes a brake wire having one end connected to the base portion of the handle lever, and one end side to the other end of the brake wire. The other end side is connected to the operating part of the braking means in the wheel, and a spring for returning the member to a fixed position is attached to the connecting member.

  The present invention according to claim 8 is the brake device for a handcart according to claim 7, wherein the connecting member includes a shaft portion secured between the operating portions of the braking means in the pair of wheels, and the handcart in the shaft portion. A V-shaped part formed on one side of the main body, and the other end of the brake wire is connected to the tip of the V-shaped part.

  The present invention according to claim 9 is characterized in that, in the brake device according to any one of claims 1 to 8, the wheelbarrow is a barge.

  According to the brake device for a handcart according to the present invention, when the user pulls the handle lever with his hand to move the handcart, the wheel brake is automatically released as the handle lever rotates. Therefore, the user can move the wheelbarrow as it is without performing any other operation.

  In addition, when you want to decelerate the speed of the wheelbarrow while the wheelbarrow is moving, the wheel brake is activated simply by temporarily returning the handle lever to its original position. Is possible.

  Furthermore, when the user moves the handcart to the desired position, the wheel brake is automatically activated when the user releases the handle lever and the handle lever returns to the original position. The stop state is maintained.

  As described above, according to the handcart brake device according to the present invention, the brake operates in conjunction with the operation of the user moving the handle lever of the handcart. In addition, it is not necessary to provide two brake devices for deceleration during movement and maintenance of a stop state when the vehicle is stopped, and of course, since the brake operation can be performed more easily and appropriately than in the past, The operation of moving the wheelbarrow can be very easy.

  Next, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to such embodiments, and various modifications can be made within the scope of the gist.

  In the present embodiment, front and rear, left and right, and top and bottom are based on FIG. 1, front refers to the front side of the drawing paper sheet of FIG. 1, and back refers to the back side of the drawing paper sheet of FIG. Further, the left means the left side of FIG. 1, and the right means the right side of FIG. Further, “up” refers to the upper side of FIG. 1, and “lower” refers to the lower side of FIG.

  (Embodiment 1)

  As shown in FIG. 1, the allocation vehicle 1 is provided with storage rooms 3A and 3B on both sides of the central wall 2 thereof, and tray receiving plates 5A and 5B attached to the both side walls 4 of the storage rooms 3A and 3B. A tray receiving unit 8 having a horizontal bar 6 installed between the tray receiving plates 5A and 5B and a partition wall member 7 supported by the horizontal bar 6 by passing through the horizontal bar 6 is vertically Are arranged in multiple stages at regular intervals.

  As shown in FIG. 1, FIG. 2 and FIG. 4, a handle lever 11 is provided on the left side 1a of the distribution vehicle 1 body, and the handle lever 11 is channel-shaped at both ends of a U-shaped upper member 11a having a downward opening. The member 11b is integrally attached, and is rotatable by a bolt shaft 12. Then, the upper end of the coil spring 14 is hooked on the channel-shaped member 11b, and the lower end of the coil spring 14 is hooked on the protruding portion 13 provided on the left side 1a of the distribution wheel 1 main body. 1 and 2, the handle lever 11 is maintained in a substantially vertical state, and even when the upper side of the handle lever 11 is pulled to the left side by hand, when the hand is released from the handle lever 11, the handle lever 11 becomes a spring of the coil spring 14. It is made to return to a substantially vertical state by force.

  A hinge 15 is fixed to the lower side of the channel-like member 11b of the handle lever 11 with a rivet 16, and an upper end 18a of a shaft-shaped first connecting member 18 to be described later is connected to the channel-like member 11b via a pin 17 in the hinge 15. And are pivotally connected.

  As shown in FIGS. 1, 2, and 5, the lower end 18 b of the shaft-shaped first connecting member 18 protrudes through the through hole 19 formed in the bottom portion 1 c of the distribution vehicle 1 to the outer bottom surface of the distribution vehicle 1 main body. ing. In addition, a substantially reverse L-shaped second connecting member 21 is supported on the portion by a shaft 22 from the front. The shaft 22 is secured between a pair of left and right hanging members 23 provided on the outer bottom surface of the distribution vehicle 1.

  The left end 21 a of the second connecting member 21 is pivotally supported by the lower end 18 b of the shaft-like first connecting member 18 via a pin 24, and the right end 21 b of the second connecting member 21 is interposed via a pin 25. A left end 26a of a shaft-shaped third connecting member 26 described later is rotatably connected.

  As shown in FIGS. 1 to 6, the right end 26 b of the shaft-shaped third connecting member 26 extends to the vicinity of the front and rear wheels 27 provided at the center of the outer bottom surface of the trolley 1, It is connected. That is, the fourth connecting member 31 includes a shaft portion 31a secured between the operating portions 28a of the drum brake 28 provided as braking means on the front and rear wheels 27, and a side edge of the shaft-shaped third connecting member 26 in the shaft portion 31a. The right end 26b of the shaft-shaped third connecting member 26 is connected to the tip of the V-shaped portion 31b.

  As shown in FIGS. 3 and 6 to 8, one end of the coil spring 32 is hooked on the portion near the both ends of the shaft portion 31 a of the fourth connecting member 31, and the other end of the coil spring 32 is on the arrangement side. It is hooked on a frame 33 at the bottom of the car 1.

  The actuating portion 28a of the drum brake 28 in the wheel 27 has a vertically rectangular plate shape as viewed from the front, and its base is attached to the main body portion of the drum brake 28 with a bolt shaft 34 and a nut 35, and the actuating portion 28a rotates. Thus, the position of the brake shoe in the main body portion of the drum brake 28 is changed. More specifically, in the state where the coil spring 32 hooked on the fourth connecting member 31 is not extended, as shown in FIG. 8, the operating portion 28a of the drum brake 28 is in the position represented by the solid line in FIG. In this case, the wheel 27 is stopped by the brake shoe in the main body portion of the drum brake 28. On the other hand, when the fourth connecting member 31 moves to the left side and the coil spring 32 extends, the operating portion 28a of the drum brake 28 rotates to the position indicated by the dotted line in FIG. The restrained state of the wheel 27 by the brake shoe in the main body portion is released.

  In the present embodiment, the layout vehicle 1 further includes a pair of wheels 36 and 37 at the left and right side portions in addition to the central wheel 27 described above.

  As shown in FIGS. 1, 2, and 9, in the present embodiment, a handle lever 41 is similarly provided on the right side 1 b of the trolley 1, and a right side via a hinge 42 is provided at the base of the handle lever 41. The upper end 43a of the shaft-shaped first connecting member 43 is rotatably connected.

  The lower end 43b of the right shaft-shaped first connecting member 43 projects through the through hole 44 formed in the bottom portion 1c of the distribution vehicle 1 to the outer bottom surface of the distribution vehicle 1, and the portion is substantially omitted when viewed from the front. An L-shaped right second connecting member 40 is rotatably supported by a shaft 45. The shaft 45 is secured between a pair of front and rear hanging portions 46 provided on the outer bottom surface of the distribution vehicle 1.

  The right end 40a of the right second connecting member 40 is pivotally supported by the lower end 43b of the right shaft-shaped first connecting member 43 via a pin 47, and the left end 40b of the right second connecting member 40 has a pin A right end 49a of a right shaft-shaped third connecting member 49, which will be described later, is rotatably connected via 48.

  As shown in FIGS. 2, 3, 6, and 7, the left end 49 b of the right shaft-shaped third connecting member 49 extends to the vicinity of the front and rear wheels 27 at the center of the outer bottom surface of the distribution vehicle 1. 31 is connected to the shaft portion 31a.

  Next, the operating procedure of the brake device in the layout vehicle 1 of this embodiment will be described. As shown in FIG. 2, when the layout vehicle 1 is moved by pulling the handle lever 11 on the left side of the layout vehicle 1, the handle lever 11 As the shaft rotates, the shaft-like first connecting member 18 is pulled up, and the left end 21a of the substantially inverted L-shaped second connecting member 21 is also lifted. At this time, the right end 21b of the second connecting member 21 moves to the left, and accordingly, the shaft-like third connecting member 26 and the fourth connecting member 31 are pulled to the left against the spring force of the coil spring 32. As a result, as shown in FIG. 8, the actuating portion 28a of the drum brake 28 in the wheel 27 is rotated to the left, the brake shoe (not shown) in the drum brake 28 is moved, and the restrained state of the wheel 27 is released. Is done. Therefore, by pulling the handle lever 11, the restrained state of the wheel 27 by the drum brake 28 is automatically released, and the arrangement vehicle 1 can be moved.

  On the other hand, when the user moves the laying wheel 1 to the target position and performs the laying work, when the hand is released from the handle lever 11, the handle lever 11 is moved back to the original position by the spring force of the coil spring 14 of the handle lever 11. While returning to the vertical state, the fourth connecting member 31 and the shaft-like third connecting member 26 are pulled back to the right side by the spring force of the coil spring 32 attached to the fourth connecting member 31. The right end 21b of the second connecting member 21 is also pulled back to the right side. At this time, the left end 21a of the substantially inverted L-shaped second connecting member 21 is pulled down, and the shaft-like first connecting member 18 is also pulled down to return to the original state.

  In this case, as the fourth connecting member 31 returns to the original position, the operation portion 28a of the drum brake 28 in the wheel 27 is also rotated to the original right side. Since the brake shoe (not shown) also returns to the original position, the restrained state of the wheel 27 is maintained again. Therefore, when the handle lever 11 is released, the state where the wheel 27 is stopped by the drum brake 28 is automatically maintained again, and the stopped state of the layout vehicle 1 is continued.

  As shown in FIGS. 1 to 3 and FIG. 9, when the handle lever 41 of the right side portion 1 b of the distribution vehicle 1 is pulled, the right shaft-shaped first connecting member 43 is pulled up along with this and the substantially L-shaped. The right end 40a of the right second connecting member 40 is also lifted, and accordingly, the left end 40b of the right second connecting member 40 moves to the left, and the right shaft-shaped third connecting member 49 and the fourth connecting member 31 are coil springs. As a result, the actuating portion 28a of the drum brake 28 in the wheel 27 is rotated to the left, and the restrained state of the wheel 27 is released as shown in FIG. Therefore, even if the handle lever 41 is pulled, the restrained state of the wheel 27 by the drum brake 28 is automatically released, and the arrangement vehicle 1 can be moved.

  On the other hand, when the user moves the laying wheel 1 to the target position and performs the laying work, when the hand is released from the handle lever 41, the handle lever 41 is moved by the spring force of the coil spring (not shown) of the handle lever 41. Is returned to the original vertical state, and the fourth connecting member 31 and the right shaft-shaped third connecting member 49 are pulled back to the right by the spring force of the coil spring 32 hooked on the fourth connecting member 31. At this time, the left end 40b of the substantially L-shaped right second connecting member 40 is pulled back to the right and the right end 41a is pulled down, and the right shaft-shaped first connecting member 43 is also pulled down to return to the original state. . At this time, in conjunction with the return of the fourth connecting member 31 to the original position, the operation portion 28a of the drum brake 28 in the wheel 27 rotates to the original right side, and the brake shoe ( (Not shown) also returns to its original position, so that the restrained state of the wheel 27 is maintained again. Therefore, by releasing the handle lever 41, the state where the wheel 27 is stopped by the drum brake 28 is automatically maintained again, and the stopped state of the laying wheel 1 is continued.

  In the present embodiment, the structure is such that the restrained state of the wheel 27 by the drum brake 28 is released by pulling one of the handle levers 11 and 41 on both sides of the distribution vehicle 1. There is a case where the interlocking means as described above is not provided for either one of the handle levers 11 and 41 on both sides.

  (Embodiment 2)

  The arrangement vehicle according to the present embodiment is provided with the same tray receiving unit as that of the first embodiment. As shown in FIGS. 10 to 14, in the layout vehicle 51 of the present embodiment, one end 53 a of the brake wire 53 is connected to the base portion 52 a of the handle lever 52 of the left side portion 51 a, and the brake wire 53 is The vehicle 51 is disposed from the left side 51a to the vicinity of the front and rear wheels 27 on the outer bottom surface. A bracket 55 is provided on the outer bottom surface of the layout wheel 51, and the other end 53b portion of the brake wire 53 is inserted into a hole (not shown) of the bracket 55 and fixed by nuts 54a and 54b.

  A wire connector 57 for connecting the other end 53 b of the brake wire 53 is provided adjacent to the bracket 55, and the wire connector 57 is a screw that connects the upper and lower rectangular plates 59 and the two plates 59 to each other. 61, and a circular hole 62 corresponding to each other is formed in a portion near the end of the both-shaped plate 59, and a columnar member 63 attached integrally to the other end 53b of the brake wire 53 is formed in the circular hole 62. The other end 53 b of the brake wire 53 is connected to the wire connector 57 by fitting.

  Since the connection member 31 is the same as the fourth connection member 31 in the first embodiment described above, and the relationship between the drum brake 28 of the wheel 27 and the coil spring 32 is the same as that of the fourth connection member 31, the same reference numerals are used. Description is omitted by using.

  A base plate 65 is interposed between the wire connector 57 and the connecting member 31, both ends of the base plate 65 are connected to the connecting member 31 with screws 66, and the base plate 65 and the wire connector 57 are bolts 67. And a nut 68.

  According to the allocation vehicle 51 of the present embodiment, the brake wire 53 is pulled by pulling the handle lever 52 of the left side 51a, and accordingly, the connecting member 31 also moves to the left against the spring force of the coil spring 32. As a result of the pulling, the restrained state of the wheel 27 by the drum brake 28 is released, and as a result, the arrangement vehicle 57 can be moved.

  On the other hand, when the handle lever 52 is released, the handle lever 52 returns to its original state, and the connecting member 31 and the brake wire 53 are also pulled back to the right side by the spring force of the coil spring 32. As a result, the drum brake 28 27 becomes a stop state again.

  The brake device of the present invention can be used for various wheelbarrows such as an airport luggage transport cart and a supermarket shopping cart, in addition to a distribution vehicle.

It is a side view of the distribution vehicle which concerns on Embodiment 1. FIG. It is an enlarged side view of the brake device in the same embodiment. It is a bottom view of the allocation vehicle of the embodiment. It is a perspective view of the handle lever in the left side of a layout vehicle. It is a perspective view of the left side part of a layout vehicle bottom part. It is a perspective view of the layout vehicle center bottom part. Similarly, it is a perspective view of the center of the distribution vehicle. It is a side view of the wheel in the center of the layout vehicle. It is a perspective view of the right side part of a layout vehicle bottom part. It is a side view which shows the brake device in Embodiment 2. It is a perspective view of the handle lever in the side of the distribution vehicle which concerns on the same embodiment. It is a partial expansion perspective view of a handle lever similarly. It is a bottom view of the distribution vehicle which concerns on the same embodiment. It is a perspective view of the layout vehicle center bottom part. It is a side view which shows the prior art example of a brake device. It is a side view which shows the other conventional example of a brake device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wheel arrangement 11/41 Handle lever 14 Coil spring for handle levers 15/42 Hinge 17/24/25/47/48 Pin 18 Shaft-shaped first connecting member 21 Substantially inverted L-shaped second connecting member 22/45 Shaft 26 Shaft-like third connecting member 27 Wheel 28 Drum brake 28a Drum brake operating part 31 Fourth connecting member 31a Shaft part of fourth connecting member 31b V-shaped part 32 Coil spring for fourth connecting member 40 Substantially L-shaped second connection Member 43 Right shaft first connecting member 49 Right shaft third connecting member

Claims (9)

  Provided with a handle lever attached to one side of the handcart main body, braking means provided on the wheel, and interlocking means for interlocking the braking means and the handle lever. When the handle lever is in a fixed position, the interlocking means The braking device in the handcart is configured such that the braking means is in a stopped state via the brake and the wheel is stopped by the braking means via the interlocking means when the handle lever is rotated from a fixed position. .   The brake device for a handcart according to claim 1, further comprising a spring for returning the handle lever to a fixed position.   The interlocking means includes a shaft-like first connecting member whose one end is rotatably connected to the base of the handle lever via a hinge, and one end which is freely rotatable via a pin to the other end of the shaft-like first connecting member. A second connection member having a substantially inverted L shape when viewed from the front, a third connection member having one end rotatably connected to the other end of the second connection member via a pin, and one end A fourth connecting member whose side is connected to the shaft-like third connecting member and whose other end is connected to the operating portion of the braking means in the wheel; and a spring that returns the fourth connecting member to a fixed position. The shaft-shaped first connecting member extends from one side of the wheelbarrow main body to the outer bottom surface of the wheelbarrow main body, and the bent portion of the substantially inverted L-shaped second connecting member is outside the wheelbarrow main body. It is pivotally supported by a part near one side of the bottom, and the shaft-like third connecting member is a part near one side on the outer bottom of the handcart main body. Extends to the vicinity of the wheels, the fourth connecting member, characterized in that provided between a pair of wheels, the braking device in the wheelbarrow according to claim 2, wherein.   The fourth connecting member has a shaft portion secured between the operating portions of the braking means in the pair of wheels, and a V-shaped portion formed on the side edge of the shaft-shaped third connecting member in the shaft portion. The brake device for a handcart according to claim 3, wherein the tip of the hook-like portion is connected to the other end of the shaft-like third connecting member.   The other side handle lever attached to the other side part of the handcart main body, the other side spring for returning the other side handle lever to a fixed position, and the other side interlocking means for interlocking the other side handle lever and the wheel braking means. Further, when the other side handle lever is in a fixed position, the braking means stops the wheel via the other side interlocking means, and when the other side handle lever is rotated from the fixed position, the other side interlocking means is passed through the other side interlocking means. The brake device for a handcart according to any one of claims 1 to 4, wherein the restrained state of the wheel by the braking means is released.   The other-side interlocking means has one end connected to the base of the other-side handle lever via a hinge so as to be rotatable, and one end connected to the other end of the other-side shaft-shaped first connecting member. The other second connecting member, which is substantially L-shaped when viewed from the front and connected through a pin, is pivotally connected to the other end of the other second connecting member through the pin. The other end shaft-like third connecting member connected to the fourth connecting member, and the other side shaft-like first connecting member extends from the other side of the handcart main body to the outer bottom surface of the handcart main body. The other side second connecting member of the substantially L shape is pivotally supported by a portion near the other side of the outer bottom surface of the handcart main body so that the other side shaft third connecting member can be rotated. 6. The blur of the handcart according to claim 5, wherein the member extends from a portion closer to the other side of the outer bottom surface of the handcart main body to the vicinity of the wheel. Key equipment.   The interlocking means has one end connected to the base of the handle lever, one end side connected to the other end of the brake wire, and the other end connected to the operating part of the braking means in the wheel. The brake device for a handcart according to claim 1, wherein a spring for returning the member to a fixed position is attached to the member.   The connecting member has a shaft portion secured between the operating portions of the braking means in the pair of wheels, and a V-shaped portion formed on one side of the wheelbarrow main body in the shaft portion, and is V-shaped. The brake device in the handcart of Claim 7 with which the other end part of the brake wire is connected with the front-end | tip part of the part.   The brake device according to any one of claims 1 to 8, wherein the wheelbarrow is a barge.

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