JP2018127019A - Cart apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To readily perform a swiveling motion and a decelerating motion.SOLUTION: A cart apparatus includes: a cart body having a pair of wheels 3 disposed apart in right-and-left directions crossing an advancing direction; a pair of brake units 5 disposed in association with the pair of wheels 3 and capable of braking the respective wheels 3; a handle 4 capable of being operated in the right-and-left directions of the cart body and in a second direction different from the right-and-left directions; and a motion converter 10 for braking one of the wheels 3 by transmitting a motion of the handle 4 in one of the right-and-left directions to one of the brake units 5, braking the other wheel 3 by transmitting a motion of the handle 4 in the other one of the right-and-left directions to the other brake unit 5, and braking both the wheels 3 by transmitting a motion of the handle 4 in the second direction to both the brake units 5.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a cart apparatus.

For example, as a cart device (movable cart) that transports a transported object such as food provided in a facility such as a hotel or a hospital, a device that is operated using a handle provided in front of the cart device is generally used. Is.
As such a cart apparatus, an electric cart using a driving force of an electric motor and a manual cart that is driven by human power are known (for example, see Patent Document 1).

JP 2002-154436 A

  In the case of a manual cart provided with a handle at the front of the cart, the cart can be moved forward by pulling the handle forward. However, when a large cart is operated, there is a problem that the turning operation is difficult.

  An object of this invention is to provide the trolley | bogie apparatus which can perform turning operation | movement and deceleration operation | movement easily.

  According to the first aspect of the present invention, the carriage device is provided corresponding to the carriage main body having a pair of wheels spaced apart in the left-right direction intersecting the traveling direction, and the pair of wheels, A pair of braking devices capable of braking each of the wheels, a handle of the carriage body operable in a second direction different from the left-right direction and the left-right direction, and an operation of the handle in one of the left-right direction. One of the brake devices is transmitted to brake one of the wheels, and the operation of the handle in the left-right direction is transmitted to the other brake device to brake the other wheel. An operation conversion unit that transmits the operation in the second direction to both the braking devices to brake both the wheels.

  According to such a configuration, by operating one handle in the left-right direction and the second direction different from the left-right direction, the cart body can be turned left and right, and the cart body can be decelerated. Become. Thereby, turning operation | movement and deceleration operation | movement of a trolley | bogie apparatus can be performed easily.

  In the above-described cart device, each of the braking devices includes a braking device main body that brakes the wheel, and a braking device operation unit that operates the braking device main body, and the operation conversion unit is configured so that the left and right of the handle are A pair of first transmission devices that transmit a motion in the direction to the braking device operation portion; and a pair of second transmission devices that transmit the motion in the second direction of the handle to the braking device operation portion. It's okay.

  According to such a configuration, the configuration of the device can be simplified by configuring the first transmission device and the second transmission device to operate the same braking device operation unit.

  In the above-described carriage device, the first transmission device has a first transmission member that transmits a left-right movement of the handle, a first end portion, and a second end portion. A first arm portion swingably provided around an arm rotation shaft disposed on the second end side between the end portion and the second end portion, wherein the first end portion The first transmission member is transmitted to the second arm, and the second end portion is disposed at a position where the brake device operation unit can be operated. The device has a rod shape having a second transmission member to which the movement of the handle in the second direction is transmitted, a first end and a second end, and the first end and the second end. A second arm portion swingably provided around an arm rotation shaft disposed on the second end side between the first end portion and the first end portion; Together with the operation of the second transmission member to the end portion is transmitted, the second end may have a second arm portion which is positioned so as to be operated the brake device operating unit.

  According to such a configuration, a large force can be applied to the braking device operating portion based on the lever principle in which the rotation shaft is a fulcrum, the first end is a force point, and the second end is an action point. .

  In the cart apparatus, the second direction is a front-rear direction, and the handle is provided across a left-right direction of the cart body, and is operable with respect to the handle body, the handle body being operable in the front-rear direction of the cart body. A rotating handle that is operatively mounted in the left-right direction of the cart body, wherein the first transmission member connects the rotating handle and the first arm portion, and the second transmission member. May connect the handle body and the second arm part.

  According to the present invention, by operating one handle in the left-right direction and the second direction different from the left-right direction, the cart body can be turned left and right, and the cart body can be decelerated. Thereby, turning operation | movement and deceleration operation | movement of a trolley | bogie apparatus can be performed easily.

It is a perspective view of the cart apparatus of a first embodiment of the present invention. It is a conceptual diagram explaining schematic structure of the trolley | bogie apparatus of 1st embodiment of this invention. It is a perspective view of the handle | steering-wheel apparatus of 1st embodiment of this invention. It is a perspective view of the operation | movement conversion part and braking device of the trolley | bogie apparatus of 1st embodiment of this invention. It is a figure explaining the effect | action of the operation | movement conversion part of the trolley | bogie apparatus of 1st embodiment of this invention. It is a figure explaining the effect | action of the operation | movement conversion part of the trolley | bogie apparatus of 1st embodiment of this invention. It is a side view of the 2nd transmission device of the trolley | bogie apparatus of 1st embodiment of this invention. It is a side view explaining the effect | action of the 2nd transmission device of the trolley | bogie apparatus of 1st embodiment of this invention. It is a perspective view of the handle | steering_wheel of the trolley | bogie apparatus of 2nd embodiment of this invention. It is a top view of the handle | steering-wheel of the trolley | bogie apparatus of 2nd embodiment of this invention. It is a top view explaining the effect | action of the handle | steering_wheel of the trolley | bogie apparatus of 2nd embodiment of this invention. It is a top view of the handle | steering_wheel of the trolley | bogie apparatus of 3rd embodiment of this invention.

[First embodiment]
Hereinafter, a cart apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings. The drawings used in the following description are for explaining the configuration of the embodiment of the present invention, and the sizes, thicknesses, dimensions, etc. of the respective parts shown in the drawings are different from the dimensional relationships of the actual cart apparatus. There is.
FIG. 1 is a perspective view schematically showing a cart apparatus 1 according to a first embodiment of the present invention. FIG. 2 is a conceptual diagram illustrating a schematic configuration of the cart apparatus 1 of the present embodiment.

As shown in FIGS. 1 and 2, the carriage device 1 includes a carriage body 2 having a pair of wheels 3 (only one side is shown in FIG. 1) spaced apart in the left-right direction W intersecting the traveling direction T. The pair of braking devices 5 provided corresponding to the pair of wheels 3 and capable of braking the wheels 3, respectively, and the front-rear direction X which is a second direction different from the left-right direction W and the left-right direction W of the carriage body 2 And a motion conversion unit 10 that converts the motion of the handle 4 into a motion for operating the braking device 5.
The X direction shown in FIG. 1 indicates the front-rear direction X of the carriage device 1. The W direction shown in FIG. 1 indicates the left-right direction W of the carriage device 1. Moreover, the arrow T shown in FIG. 1 points to the front of the traveling direction T of the carriage device 1.

As the cart body 2, for example, a box-shaped one having the inside as a storage portion can be adopted. A door 8 can be attached to the cart body 2.
The pair of wheels 3 are spaced apart from each other in the left-right direction W of the carriage body 2.
The pair of wheels 3 are arranged at the approximate center in the front-rear direction X of the carriage body 2. Casters 9 are attached in the vicinity of both ends in the front-rear direction X of the main body 2 and in the vicinity of both ends in the left-right direction W.

  The handle 4 includes a handle main body 12 extending in the left-right direction W of the carriage main body 2 and a slider portion 13 (rotating handle) that is slidably attached to the handle main body 12. The operator can simultaneously operate the handle body 12 and the slider unit 13. That is, the slider portion 13 can be slid while performing an operation of tilting the handle body 12 while holding the slider portion 13.

The operator can move the cart body 2 by holding the handle 4 and pulling it in the traveling direction T.
The cart apparatus 1 of this embodiment has a function of turning the cart body 2 by operating the slider portion 13 of the handle 4 to selectively brake one of the pair of wheels 3. That is, when the carriage main body 2 is moved, the carriage main body 2 can be bent rightward by sliding the slider portion 13 in the right-and-left direction W, for example, to the right to brake the right wheel 3. In other words, the cart apparatus 1 of the present embodiment turns the cart body 2 left and right by creating a speed difference between the left and right wheels 3 using a braking device 5 described later.

  Moreover, the cart apparatus 1 of this embodiment can decelerate or stop the cart body 2 by operating the handle body 12 of the handle 4 and braking both wheels 3. The cart apparatus 1 of the present embodiment has a function capable of braking both wheels 3 by tilting the handle body 12 forward in the front-rear direction X.

  As shown in FIG. 3, the handle 4 is attached to the front side of the carriage body 2 so as to be rotatable about the rotation center axis A. The handle 4 is attached to a first base portion 21 that is fixed to the front surface of the cart body 2. The first base portion 21 is a plate-like member.

  The handle body 12 is urged by an urging member (not shown) such as a torsion coil spring so that the central portion in the left-right direction W always faces upward in the vertical direction (position shown in FIG. 3). . As a result, the handle main body 12 is in close contact with the carriage main body 2 without any operation by the operator, and the operator operates the counter member against the urging force of the urging member to tilt the central portion forward in the traveling direction T. Can do. The rotation angle of the handle body 12 is about 90 °.

  The handle body 12 is formed by a tubular member having a circular cross section, and has a tubular shape curved in an arc shape so as to draw a semicircle. The handle body 12 is attached such that the center of an arc (semicircle) drawn by the center axis of the handle body 12 is positioned on the rotation center axis A.

  At both ends of the handle body 12, projecting shaft portions 14 extending outward in the left-right direction W along the rotation center axis A are formed. The pair of projecting shaft portions 14 are supported by a pair of bearings 15 provided on the first base portion 21 so as to be rotatable about the rotation center axis A. The handle body 12 is attached so that the protruding shaft portions 14 have the same height.

The slider portion 13 is slidably attached in the extending direction of the handle body 12.
The slider portion 13 is a cylindrical member bent in an arc shape, and is attached to the handle body 12 so as to cover the peripheral surface of the handle body 12. Usually, when operating the handle 4, the operator holds the slider portion 13. The slider portion 13 is urged in a direction toward the central portion in the left-right direction W of the handle body 12 by a predetermined urging member. In other words, the slider portion 13 is positioned at the center portion of the handle body 12 without being operated by the operator, and is operated by the operator against the urging force of the urging member. It is comprised so that it can be slid to either.

  As shown in FIG. 2, the braking device 5 connects a braking device body 6 that brakes the wheel 3, a braking device operation unit 7 that operates the braking device body 6, and the braking device body 6 and the braking device operation unit 7. And a brake hose 16 to be used. The braking device 5 of the present embodiment is a hydraulic disc brake that transmits a braking force to the wheels 3 using liquid. As the braking device 5, a bicycle braking device 5 can be used.

  In the braking device 5 of the present embodiment, the left braking device body 6 in the left-right direction W is operated by operating the right braking device operation unit 7 in the left-right direction W, and the left braking device operation unit in the left-right direction W is operated. 7 is configured such that the brake device body 6 on the right side in the left-right direction W operates. That is, one of the pair of brake hoses 16 connects the right brake device operating unit 7 and the left brake device body 6, and the other pair of brake hoses 16 connects the left brake device operating unit 7 and the right brake device. The apparatus main body 6 is connected.

The braking device body 6 includes a pair of brake rotors 17 that rotate together with the wheels 3 and a pair of brake calipers 18 that are disposed at positions where the brake rotor 17 is sandwiched.
The braking device 5 is not limited to a hydraulic brake, and other types of braking devices may be employed. A mechanical disc brake may be used as the mechanism of the braking device. Further, not only the disc brake but also a rim brake such as a drum brake or a V brake may be used.

  As shown in FIG. 4, the braking device operation unit 7 includes an attachment bar 23 fixed to the second base portion 22 and a pair of brake levers 19 attached to the attachment bar 23. The attachment bar 23 is a rod-shaped member having a circular cross section that extends in the left-right direction W. Both ends of the mounting bar 23 are supported by the bar support member 20.

  The brake lever 19 has a bracket portion 24 attached to the attachment bar 23 and a lever portion 25 attached to the bracket portion 24 so as to be rotatable. The braking device operating unit 7 is arranged to operate the braking device main body 6 to brake the wheel 3 by pressing the lever unit 25 downward. The brake lever 19 is disposed so that the lever portion 25 protrudes upward. Specifically, the force applied to the lever portion 25 is converted into hydraulic pressure through a master cylinder provided in the bracket, and the brake caliper 18 is operated through the brake hose 16.

  The operation conversion unit 10 is a part that converts the operation of the handle 4 into an operation for operating the braking device 5. As shown in FIG. 2, the motion conversion unit 10 includes a first transmission device 27 that transmits the operation of the handle 4 in the left-right direction W to the brake device operation unit 7, and the operation of the handle 4 in the front-rear direction X. And a second transmission device 37 that transmits to the second transmission device 37.

  As shown in FIGS. 3 and 4, the first transmission device 27 includes a first transmission member 28 to which the operation of the handle 4 in the left-right direction W is transmitted, and a rod-shaped first arm connected to the first transmission member 28. Part 31.

The first transmission member 28 includes a cylindrical first outer cable 29 and a first inner cable 30 inserted into the first outer cable 29. One end 30 a of the first inner cable 30 is connected to a bracket 13 a formed on the slider portion 13. The other end 30 b of the first inner cable 30 is connected to the first end portion 31 a of the first arm portion 31.
One end of the first outer cable 29 is fixed to the handle body 12 via the bracket 12a. The other end of the first outer cable 29 is fixed to the second base portion 22 via the first cable bracket 34.

  The first transmission member 28 is configured to pull the inner cable of the first transmission member 28 disposed on the other side in the left-right direction W upward by moving the slider portion 13 in one side in the left-right direction W. .

  The first arm portion 31 has a rod shape having a first end portion 31a and a second end portion 31b. The first arm portion 31 is attached to the second base portion 22 so as to be swingable about the arm rotation shaft 32. The arm rotation shaft 32 is disposed on the second end portion 31b side between the first end portion 31a and the second end portion 31b of the first arm portion 31. The arm rotation shaft 32 is fixed to the second base portion 22 via the rotation shaft bracket 33 so that the axis is orthogonal to the main surface of the second base portion 22.

  The operation of the first arm portion 31 is restricted by a pair of restricting portions 46 attached to the second base portion 22. The restricting portion 46 is a member provided so as to protrude forward from the second base portion 22. The restricting portion 46 is disposed outside the arm rotation shaft 32 in the left-right direction W. When the first arm portion 31 extends in the horizontal direction, the restricting portion 46 is on the first end portion 31a side of the first arm portion 31, and above and below the first arm portion 31. Has been placed.

  The second end portion 31 b of the first arm portion 31 is biased upward by a tension coil spring 35 attached to the second base portion 22. That is, in a state where the first end 31 a of the first arm portion 31 is not pulled by the first transmission member 28, the second end 31 b of the first arm portion 31 is the first end of the first arm portion 31. It is located above the end portion 31a.

The second end portion 31 b of the first arm portion 31 is disposed at a position where the braking device operation unit 7 of the braking device 5 can be operated.
When the first end portion 31 a of the first arm portion 31 is pulled upward by the first inner cable 30 of the first transmission member 28, the first arm portion 31 swings, so that the first arm portion 31 The second end 31b is lowered downward. When the second end portion 31b of the first arm portion 31 is lowered, the brake lever 19 of the braking device operating portion 7 is operated.

The second transmission device 37 includes a cable fixture 38 attached to the end of the protruding shaft portion 14 of the handle body 12, a second transmission member 39 that transmits the operation of the handle 4 in the front-rear direction X, And a bar-shaped second arm portion 42 connected to the transmission member 39.
The shape of the second arm portion 42 is the same as that of the first arm portion 31. The second arm part 42 is swingably attached to the arm rotation shaft 32 together with the first arm part 31.

The second transmission member 39 includes a cylindrical second outer cable 40 and a second inner cable 41 inserted through the second outer cable 40. One end 41 a of the second inner cable 41 is connected to the cable fixture 38. The other end 41 b of the second inner cable 41 is connected to the first end portion 42 a of the second arm portion 42.
One end of the second outer cable 40 is fixed to the first base portion 21 via the second cable bracket 43. The other end of the second outer cable 40 is fixed to the second base portion 22 via the first cable bracket 34 together with the other end of the first outer cable 29.

  The cable fixture 38 is a member that rotates as the handle 4 rotates along the front-rear direction X, and pulls the inner cable of the second transmission member 39 upward as the handle body 12 rotates forward. It is a member. The cable fixture 38 is attached to each of the pair of protruding shaft portions 14 provided at both ends of the handle body 12. When the handle body 12 is rotated in the front-rear direction X, both the pair of cable fixtures 38 are rotated.

  The cable fixture 38 is disposed below the rotation center axis A when the handle body 12 is upright, and the cable connecting portion 47 is disposed above the rotation center axis A when the handle body 12 is upright. A cable hooking portion 49, and a cable connecting portion 47 and an intermediate portion 48 for connecting the cable hooking portion 49.

The intermediate portion 48 has a plate shape, and is attached to the end surface of the protruding shaft portion 14 so that the main surface of the intermediate portion 48 is orthogonal to the rotation center axis A.
The cable connecting portion 47 has a plate shape, and the cable connecting portion 47 and the intermediate portion 48 are connected so that the main surface of the cable connecting portion 47 and the main surface of the intermediate portion 48 are orthogonal to each other. The cable hooking portion 49 has a plate shape, and the cable hooking portion 49 and the intermediate portion 48 are such that the main surface of the cable hooking portion 49 and the main surface of the intermediate portion 48 are orthogonal to each other and the main portion of the cable hooking portion 49 is. The surface and the main surface of the cable connecting portion 47 are connected in parallel.

  The cable fixture 38 is disposed above the upper end of the second outer cable 40 of the second transmission member 39. The cable hooking portion 49 of the cable fixture 38 is formed to interfere with the second inner cable 41 so as to pull the second inner cable 41 by rotating the handle body 12 forward.

  The length of the second inner cable 41 of the second transmission device 37 is adjusted such that the brake device operation unit 7 is operated in a state where the handle body 12 is inclined by about 90 ° from the upright state. Thereby, the brake device 5 does not operate in a state in which the handle body 12 is tilted by 60 °, for example.

Next, the operation of the cart apparatus 1 of this embodiment will be described.
The operator can run the cart device 1 by gripping the handle 4 and pulling the handle 4.

The operator can turn the carriage device 1 by moving the slider portion 13 of the handle 4 in the left-right direction W. As shown in FIG. 5, when the user moves the slider portion 13 of the handle 4 to the right side in the left-right direction W, the first inner cable 30 of the first transmission device 27 on the left side in the left-right direction W is pulled, The first end 31a of the first arm 31 is rotated so as to move upward. Thereby, the 2nd end part 31b of the 1st arm part 31 moves below, and the braking device operation part 7 of the braking device 5 of the left side is operated.
Since the left brake device operation unit 7 is configured to operate the right brake device body 6, the right wheel 3 is braked. That is, by moving the slider portion 13 to the right side, the carriage device 1 turns to the right side.

  As shown in FIG. 6, the carriage device 1 turns to the left by moving the slider portion 13 to the left. At this time, the second end 31b of the left first arm portion 31 is moved upward by the first inner cable 30 of the left first transmission device 27 in the left-right direction W, and the left brake device operation portion 7 is moved. Is no longer operated.

Further, the operator can decelerate the carriage device 1 by tilting the handle body 12 of the handle 4 forward.
As shown in FIG. 7, when the handle main body 12 is in the upright state, the left and right second inner cables 41 are not pulled. As shown in FIG. 8, when the handle body 12 is tilted forward, the cable hooking portions 49 of both the left and right cable fixtures 38 rotate upward and interfere with the second inner cable 41. Thereby, both the left and right second inner cables 41 are pulled upward.
That is, when the operator tilts the handle body 12 of the handle 4 forward, the second inner cable 41 is pulled upward while being wound around the cable fixture 38 simultaneously with the rotation of the handle body 12 about the rotation center axis A. It is done.

  When both the left and right second inner cables 41 are pulled upward, the first end portions 42a of both the left and right second arm portions 42 rotate so as to move upward. As a result, the second end portions 42b of both the left and right second arm portions 42 move downward, and the braking device operating portions 7 of both the left and right braking devices 5 are operated. Thereby, both the left and right wheels 3 are braked.

  According to the embodiment, the braking device 5 can be operated by operating the slider portion 13 regardless of the position of the handle body 12 in the front-rear direction X. That is, as shown in FIGS. 5 and 6, the braking device operating unit 7 is operated by the operation of the slider unit 13 in the left-right direction W, whereby the braking device main body 6 can be operated.

Regardless of the position of the slider portion 13 in the left-right direction W, by tilting the handle body 12 to a position of about 90 °, both wheels 3 can be braked and the carriage device 1 can be decelerated.
That is, by operating one handle 4 in the left-right direction W and the front-back direction X, the cart body 2 can be operated to turn left and right, and the cart body 2 can be decelerated.

  In addition, the brake device 5 can be shared by configuring the first brake device 27 and the second transmitter 37 that transmit the operation of the handle 4 to operate the same brake device operating unit 7. That is, the device configuration can be simplified by using the same braking device 5 for the turning operation and the braking operation of the carriage device 1.

  Further, in the first arm part 31 and the second arm part 42, the arm rotation shaft 32 is a fulcrum, the first end part is a power point, and the second end part is an action point. A great force can be applied to the part 7. Thereby, the burden on the operator when braking the wheel 3 can be reduced.

  In the above embodiment, the first outer cable 29 constituting the first connection member is exposed, but the first outer cable 29 may be built in the handle body 12. With such a configuration, it is possible to prevent a problem that the cable is caught and damaged.

  Moreover, in the said embodiment, although the urging | biasing force is provided to the 1st arm part 31 and the 2nd arm part 42 with the tension coil spring 35, it is not restricted to this, A biasing force is provided to an arm part with a torsion spring. It is good also as a structure.

Moreover, in the said embodiment, although it has set as the structure which brakes both the wheels 3 by tilting the handle main body 12, it does not restrict to this. For example, by sliding the handle body 12 upward, both the left and right second inner cables 41 may be pulled to brake both wheels 3.
In other words, any configuration may be used as long as both wheels 3 are braked via both braking devices 5 by operating the handle 4 in a second direction different from the left-right direction W.

[Second Embodiment]
Hereinafter, the cart apparatus of 2nd embodiment of this invention is demonstrated in detail with reference to drawings. In the present embodiment, differences from the first embodiment described above will be mainly described, and description of similar parts will be omitted.
The cart apparatus 1 of this embodiment differs in the structure of the handle | steering-wheel 4 from 1st embodiment. The cart apparatus 1 of the first embodiment operates the first transmission device 27 by moving the slider portion 13 in the left-right direction W, whereas the cart apparatus 1 of the present embodiment swings the handle body 12. As a result, the first transmission device 27 is operated.

  As shown in FIG. 9, the handle 4 of the present embodiment has a handle swing mechanism 51 as an alternative to the slider portion 13. The handle 4 of this embodiment performs the turning operation of the cart body 2 by swinging the handle body 12 using the handle swing mechanism 51.

  As shown in FIGS. 9 and 10, the handle swing mechanism 51 includes a first bracket 53 fixed to the first base portion 21 and a handle in which the handle main body 12 is rotatably attached in the front-rear direction X. A base portion 52, a second bracket 54 fixed to the handle base portion 52, and a handle rotation shaft 55 that rotatably connects the first bracket 53 and the second bracket 54 are provided.

Since the connection configuration between the handle body 12 and the handle base portion 52 is substantially the same as the connection configuration between the handle body 12 and the first base portion 21 of the first embodiment, the description thereof is omitted.
The first bracket 53 and the second bracket 54 are arranged at the center in the left-right direction W.
The handle base portion 52 can be rotated around the handle rotation shaft 55 from a state in which the main surface of the first base portion 21 and the main surface of the handle base portion 52 are parallel to each other. The handle base portion 52 can be rotated via the handle body 12.

  The first inner cable 30 of the first transmission member 28 is connected to both end sides of the handle base portion 52 in the left-right direction W. Specifically, the first inner cable 30 is connected so as to extend behind the handle base portion 52. The first outer cable 29 of the first transmission member 28 is fixed to the first base portion 21 via the third cable bracket 56.

As shown in FIG. 11, the operator can turn the cart device 1 by turning the handle body 12 to the right. When the user turns the handle body 12 to the right in the left-right direction W, the first inner cable 30 of the first transmission device 27 on the left side in the left-right direction W is pulled. As a result, the braking device operating section 7 of the left braking device 5 is operated, and the right wheel 3 is braked. That is, by turning the handle body 12 to the right, the cart apparatus 1 turns to the right.
Similarly, when the handle body 12 is turned to the left, the cart apparatus 1 is turned to the left.

  Moreover, similarly to the cart apparatus 1 of the first embodiment, the operator can decelerate the cart apparatus 1 by tilting the handle body 12 of the handle 4 forward.

[Third embodiment]
Hereinafter, the cart apparatus of 3rd embodiment of this invention is demonstrated in detail with reference to drawings. In the present embodiment, differences from the second embodiment described above will be mainly described, and description of similar parts will be omitted.
The cart apparatus 1 of this embodiment differs in the structure of the handle | steering-wheel 4 from 2nd embodiment. Whereas the cart apparatus 1 of the second embodiment operates the first transmission device 27 by swinging the handle body 12, the cart apparatus 1 of the present embodiment slides the handle body 12 in the left-right direction W. The first transmission device 27 is operated by moving it.

  As shown in FIG. 12, the handle 4 of this embodiment has a handle slide mechanism 58 as an alternative to the handle swing mechanism 51. The handle 4 of the present embodiment performs the turning operation of the cart body 2 by sliding the handle body 12 using the handle slide mechanism 58.

  As shown in FIG. 12, the handle slide mechanism 58 includes a linear motion guide 59 fixed to the first base portion 21, and a handle base portion 52 to which the handle body 12 is rotatably attached in the front-rear direction X. ,have.

  The linear motion guide 59 has a rail portion 60 and a block portion 61. The rail portion 60 is fixed to the first base portion 21 so as to extend in the left-right direction W. The block part 61 is a part that slides on the rail part 60, and has a connection surface parallel to the main surface of the first base part 21.

  The handle base portion 52 is attached to the block portion 61 of the linear motion guide 59. That is, the handle base 52 and the handle 4 can slide in the left-right direction W.

  The first inner cable 30 of the first transmission member 28 is connected to the vicinity of the center in the left-right direction W of the handle base portion 52 via the fourth cable bracket 62. Specifically, the first inner cable 30 is connected so as to extend from the vicinity of the center of the handle base portion 52 to the outside in the left-right direction W. The first outer cable 29 of the first transmission member 28 is fixed to the first base portion 21 via the fifth cable bracket 63.

The operator can turn the carriage device 1 by sliding the handle body 12 in the left-right direction W. When the operator moves the handle body 12 to the right side in the left-right direction W, the first inner cable 30 of the first transmission device 27 on the left side in the left-right direction W is pulled. As a result, the braking device operating section 7 of the left braking device 5 is operated, and the right wheel 3 is braked. That is, when the handle body 12 is slid to the right side, the carriage device 1 turns to the right side.
Similarly, when the handle body 12 is slid to the left, the carriage device 1 turns to the left.

  Moreover, similarly to the cart apparatus 1 of the first embodiment, the operator can decelerate the cart apparatus 1 by tilting the handle body 12 of the handle 4 forward.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design changes and the like within a scope not departing from the gist of the present invention. .
In the above embodiment, the first transmission member 28 and the second transmission member 39 are brake cables including an outer cable and an inner cable. However, the present invention is not limited to this. For example, the operation of the handle is performed using a rod. It is good also as a structure to transmit.
The handle 4, the motion conversion unit 10, and the braking device 5 according to the above-described embodiment can also be applied to a so-called power assist cart that assists an operator using the driving force of a driving device such as an electric motor.

DESCRIPTION OF SYMBOLS 1 Carriage device 2 Carriage body 3 Wheel 4 Handle 5 Braking device 6 Braking device body 7 Braking device operation part 10 Motion conversion part 12 Handle body 13 Slider part (rotating handle)
DESCRIPTION OF SYMBOLS 14 Projection shaft part 16 Brake hose 19 Brake lever 21 1st base part 22 2nd base part 24 Bracket part 25 Lever part 27 1st transmission device 28 1st transmission member 29 1st outer cable 30 1st inner cable 31 1st arm Portion 32 Arm rotation shaft 34 First cable bracket 35 Tensile coil spring 37 Second transmission device 38 Cable fixture 39 Second transmission member 40 Second outer cable 41 Second inner cable 42 Second arm portion 43 Second cable bracket 47 Cable connection Section 48 Middle section 49 Cable hook section 51 Handle swing mechanism 52 Handle base section 55 Handle rotation shaft 56 Third cable bracket 58 Handle slide mechanism 59 Linear motion guide 60 Rail section 61 Block section 62 Fourth cable bracket G 63 Fifth cable bracket A Rotation center axis T Traveling direction X Front-rear direction W Left-right direction

Claims (4)

A carriage main body having a pair of wheels spaced apart in the left-right direction intersecting the traveling direction;
A pair of braking devices provided corresponding to the pair of wheels and capable of braking the wheels;
A handle operable in a second direction different from the left-right direction and the left-right direction of the cart body;
The operation of the handle in the left-right direction is transmitted to one of the braking devices to brake one of the wheels, and the operation of the handle in the left-right direction is transmitted to the other braking device. And a motion conversion unit that brakes the other wheel and transmits the motion of the handle in the second direction to both the braking devices to brake both the wheels. Each of the braking devices includes a braking device body that brakes the wheel, and a braking device operation unit that operates the braking device body.
The motion conversion unit is
A pair of first transmission devices for transmitting the left-right movement of the handle to the braking device operation section;
The cart apparatus according to claim 1, further comprising: a pair of second transmission devices that transmit the operation of the handle in the second direction to the braking device operation unit. The first transmission device is
A first transmission member that transmits the left-right movement of the handle;
It has a rod shape having a first end and a second end, and is centered on an arm rotation axis disposed on the second end side between the first end and the second end. A first arm portion swingably provided, wherein the operation of the first transmission member is transmitted to the first end portion, and the second end portion is capable of operating the brake device operation portion. A first arm portion arranged at a position,
The second transmission device is
A second transmission member that transmits the movement of the handle in the second direction;
It has a rod shape having a first end and a second end, and is centered on an arm rotation axis disposed on the second end side between the first end and the second end. A second arm portion swingably provided, the operation of the second transmission member being transmitted to the first end portion, and the second end portion being capable of operating the braking device operation portion The cart device according to claim 2, further comprising: a second arm portion arranged at a certain position. The second direction is a front-rear direction,
The handle is
A handle body provided over the left and right direction of the carriage body, operable in the front-rear direction of the carriage body;
A rotating handle that is operably attached to the handle body in the left-right direction of the carriage body,
The first transmission member connects the rotation handle and the first arm part,
The cart apparatus according to claim 3, wherein the second transmission member connects the handle body and the second arm portion.

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