JP2006015937A - Lorry with sledge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manual luggage lorry usable on both of a snow-covered road and an uncovered road. <P>SOLUTION: A sledge is provided to a luggage lorry with wheels, so that the wheels are easily switched to the sledge for sliding by an operation of an associated handle, or the sledge is accommodated to convert the traveling into the traveling with wheels. Even if a sledge sliding condition is set, when a distance is short, the lorry can travel even on the road not covered with snow with the wheels and auxiliary wheels provided to the sledge. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a manual transport vehicle capable of transporting a baggage carrying a baggage on land or on snow.

  Conventional baggage transport vehicles are two-wheeled or real four-wheel trucks that are used for transporting luggage during shopping and travel, but only for traveling on land. There is no one that has both uses for the operation on the snow.

  The conventional baggage transport vehicle has a structure that takes into account only land and snow only, so it cannot be used effectively throughout the year in snowy regions. Also, snow-covered roads and snow-removed roads alternate. If the vehicle continues intermittently, the transporter cannot be used.

  The present invention is equipped with both a wheel for running on land and a sled for sliding on snow, and can be easily switched. Further, when sliding is a short distance, it can be used both on land and on snow. It aims to provide possible structures and methods.

  In order to achieve the above-mentioned object, the sled transport vehicle of the present invention is equipped with a normal baggage transport vehicle equipped with a snow sled, and the baggage transport vehicle can be set to slide with the sled by operating the attached handle. The sled is pulled up from the ground surface and stored, and it is set to a running state by wheels so that the operation on the snow and the land can be switched.

Also, if the snow-covered road and the road where the road surface is exposed after snow removal are alternately interrupted at short distances, the wheel is supported by the wheels while the sled is set on the snow to avoid frequent conversion. The support wheel attached to the sled is set to support a part of its own weight, and it can be used on land and on snow although there is some resistance of the wheel due to snow.

  Also, the sled is set to the sliding state, and depending on the angle of the carriage frame and the horizontal plane of the road, the wheel rises from the road surface so that the sled receives the full load, or the wheel and the sled auxiliary wheel run. For example, even if the transport vehicle is stopped and the towing hand is released to stop the towing, the transport vehicle is kept in a stable state.

  As described above, the sled transport vehicle of the present invention can exhibit the following effects.

  In other words, a conventional baggage transport vehicle can travel with a slight snowfall, but it is extremely difficult to travel with snow that is greater than the radius of the wheels.

  In this invention, it is equipped with a sled in addition to the main wheel, and the operation of both can be easily converted by the handle operation, and even if it is set to the sled operating state, it can be transported on land or on snow in a short distance In addition, the operation can be easily converted and conveyed in response to the road conditions.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  FIG. 1 is a perspective view of a case where a person is towed in an operating state of sliding on snow by adding a device having the function of a carrier with a sled according to the present invention to a normal shopping cart which is a kind of baggage carrier. It is equipped with a main wheel 3 that is pivotally supported by a support shaft 2 provided on the left and right frames 1, and the sled 4 is fitted to a sled support 5 mounted on the sled 4. 6 is pivotally suspended from the tip of the moving body 7 via 6 and is indirectly suspended on the frame 1. However, the inclination angle of the frame 1 with respect to the ground surface with which the main wheel 3 contacts is determined. Depending on the degree, the sled 4 supports the entire load other than the sled 4 via the shaft core 6 and the moving body 7.

  The moving body 7 is mounted on the upper derivative 8 and the lower derivative 9 that move along the groove 13 of the guide 10 fixed to the frame 1, and moves up and down via the connecting rod 12 and the like by the rotation of the handle 11. In the case where the sled 4 is located at the lower limit, the sled 4 comes to the operating position and can be slid on the snow. It becomes a running state.

  The cargo bag 14 for loading or storing the articles protrudes to prevent and stabilize a fall when the traveling of the side station 16 joined by connecting the left and right frames 1 and the carriage with the sled is stopped. The frame holder 17 is suspended and held.

  FIG. 2 is a front view of the carriage with a sled according to the present invention when used on snow, that is, when the sled 4 is in an activated state and the frame 1 is set up perpendicular to the ground surface. 3 is a side view thereof, and FIG. 3 is a side view thereof. The sled 4 is suspended from the sled support 5 mounted on the sled 4 and the movable body 7 via the shaft core 6, and the shaft core. 6 can be turned around.

  Since the movable body 7 is mounted on the upper derivative 8 and the lower derivative 9 that are movable along the groove 13 of the guide 10, it follows the vertical movement of the connecting rod 12 that is slid onto the end of the upper derivative 8. In order to disperse the load applied to the upper derivative 8 to the lower derivative 9, the distance plates 18 are joined together.

  One end of the connecting rod 12 is pivotally supported in a sliding state with the upper derivative 8, and the other end is pivotally supported in a sliding manner with a crankshaft 20 fixed to the handle 11 and joined to the crank 19. The crank 19 is also rotated by the rotation of 11, and the connecting rod 12 is moved up and down. However, the movable body 7 is also at the lower limit at the lowest position, and the sled 4 can slide on the snow. At the uppermost position, the moving body 7 is also at the uppermost limit, and as shown in FIG. 4, the sled 4 is pulled up and stored, and the main wheel 3 can travel.

The handle 11 is provided with a handle support shaft 21 joined to the handle 11 as a center, and since the handle support shaft 21 and the crank 19 are joined, the handle 11 is connected to the crank shaft 20 joined to the crank 19. The four members are integrated, and the handle support shaft 21 is fitted in the metal hole 22 formed in the frame 1 in a sliding state as shown in FIG. 5, so that the handle support shaft 21 is rotated about the fulcrum. It has become.

  Although the rotation of the handle 11 and the moving body 7 are interlocked, the position of the moving body 7 is moved from the uppermost limit to the lowermost limit and moved from the lowermost limit to the uppermost limit by half rotation of the handle 11. That is, the sled 4 changes from the stored state to the activated state on the snow or from the activated state to the stored state on the snow, but the left and right frames 1 are connected to fix each state. A space between the side stay 23 and the handle 11 is temporarily fixed by a stopper 24.

  FIG. 3 shows that the operation state on the snow is set, and the sled 4 is on the traveling side of the carriage with the sled, that is, the frame 1 with respect to the shaft core 6 which is a suspended fulcrum. On the other hand, since the opposite side of the bag 14 is long and heavy, the traveling side of the sled 4 always rotates in the direction of the ground surface, and in the sliding state, the auxiliary wheel 15 provided at the tip of the sled 4 is the ground surface or It rotates in contact with the snow.

  In FIG. 3, since the frame 1 stands perpendicular to the ground surface, the entire sled 4 is lifted from the ground surface, but the sled 4 has the shaft core 6 as a fulcrum. This is because the guide wheel 26 that joins between the left and right frames 1 prevents the auxiliary wheel 15 from coming into contact with the ground surface. 3 is rotated in the direction of travel, that is, in the direction F shown in FIG. 3, the sled 4 is lowered and comes into contact with the ground surface, and when further rotated, the main wheel 3 has the shaft core 6 as a fulcrum as the ground surface or on the snow Will emerge from.

  Further, when the frame 1 is tilted in the R direction shown in FIG. 3, that is, in the direction of the cargo bag 14, the frame holder 17 attached to the frame 1 is grounded as shown in FIG. 3 and the frame holder 17 are supposed to move and stabilize.

  FIG. 4 is a side view showing that the sled 4 is switched from the operating state on the snow to the stored state setting, and the sled 4 is pulled up by rotating the handle 11 and moving the moving body 7 up. The slide guide 25 provided on the sled 4 is blocked by the guide stay 26 and slides on the guide stay 26 while the position is regulated, and the sled 4 itself rotates about the shaft core 6 to be in the housed state. .

  6, 7, 8, and 9 are mechanism diagrams showing changes in the position and operation of the sled 4 due to a change in the tilt angle of the frame 1 with respect to the ground surface when the sled 4 is in an operating state on snow. FIG. 6 shows a state in which the frame 1 is perpendicular to the ground surface. The sled 4 is blocked by the guide stage 26 and floats from the ground surface together with the auxiliary wheel 15. .

  FIG. 7 shows the state in which the frame 1 is tilted in the direction F of the traveling vehicle with the warp, and the main wheel 3 and the auxiliary wheel 15 are in contact with each other. In this case, it slides in this state and slides with the sled 4 on the snow. However, although the main wheel 3 and the auxiliary wheel 15 protrude, it receives some resistance, but the resistance area is small, so the influence of the load is small. Few.

  In addition, on a road surface without snow, the main wheel 3 travels with a main load applied, and a part of the load of the sled 4 is applied to the auxiliary wheel 15. There is no hindrance, and in the case of long distances, it is only necessary to switch to each operation state on land and on snow.

  FIG. 8 shows a state in which the frame 1 is further tilted to the F side in the traveling direction from the state of FIG. 7, the main wheel 3 is lifted from the ground surface or snow, and the load is entirely applied to the sled 4. In addition, although there is some resistance of the auxiliary wheel 15 when sliding on the snow, it can slide lightly on the snow, but on a road without snow, the frictional resistance between the sled 4 and the road surface cannot travel greatly, so it is inevitable Then, the frame 1 is moved back to the state shown in FIG.

  The sled 4 is heavier because the advancing side equipped with the auxiliary wheel 15 around the shaft core 6 is larger in area than the opposite side, and in the state where the sled 4 is lifted, the advancing side is the axis. The core 6 is pivoted in the direction of the ground surface, but when sliding on the snow, the load per unit area is small as the area on the advancing side is large. The 15 side tends to rise, and it is possible to prevent the tip from being pushed into the snow on the front surface during sliding.

  FIG. 9 shows a state where the frame 1 is tilted from the vertical state with respect to the ground surface to the R side shown in FIG. 9 on the opposite side of the traveling direction, and the tip of the frame holder 17 is grounded. The center of gravity moves between the main wheel 3 and the frame holder 17, and a stable state can be maintained even if the puller's hand is released from the handle 11.

  Although the structure and operation method of the present invention have been described above, the shape of the sled 4 is not limited to the one-piece type described, it may be divided into a plurality of pieces, and the handle 11 for operation also has the structure and The mounting position is not limited to that described.

It is a perspective view which shows the state which pulls the carrier vehicle with a sled of this invention on snow. It is a front view at the time of making the carrier vehicle with a sled into the operation state on snow, and standing a frame perpendicularly | vertically with respect to the ground surface, and a part of sled is sectional drawing. FIG. 3 is a side view of FIG. 2. It is a side view at the time of accommodating the sled of the carrier vehicle with a sled, making it the operation state by a main wheel, and standing the frame perpendicularly | vertically with respect to the ground surface. It is sectional drawing of the relevant part of the handle | steering-wheel which converts an operation state. It is a mechanism figure which shows that a sled floats from a ground surface when a carrier vehicle with a sled is put into an operating state on snow and a frame is set up perpendicular to the ground surface. FIG. 7 is a mechanism diagram showing a state where the frame is tilted in the F direction from the state of FIG. 6 and the auxiliary wheel is grounded on the ground surface and travels. FIG. 8 is a mechanism diagram showing that the main wheel is lifted and is in a sliding state by a warp because it is further tilted in the F direction from the state shown in FIG. 7. FIG. 7 is a mechanism diagram showing a state where the frame is tilted in the R direction from the state shown in FIG. 6 and traction is stopped.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frame 2 Support shaft 3 Main wheel 4 Sled 5 Sled support body 6 Shaft core 7 Moving body 8 Upper derivative 9 Lower derivative 10 Guide 11 Handle 12 Connecting rod 13 Groove 14 Bag 15 Auxiliary wheel 16 Side stage
17 Frame holder
18 Distance plate 19 Crank 20 Crankshaft 21 Handle support shaft 22 Metal hole 23 Side stay
24 Stopper
25 Slide guide 26 Guide step
F Clock hand advancing direction right rotation R Clock hand advancing direction left rotation

Claims (2)

  A wheeled manual transport vehicle is equipped with a separate snow sled, and it is possible to convert between running with a wheel and sliding with a sled by operating the attached handle. A sled transport vehicle that can be transported for both snow and land use, with the upper surface being lifted and stored.   When a sled is suspended on the frame of a manual carrier vehicle with wheels and set to a state in which it can be transported by sliding, the rotation of the wheels and the rotation of the auxiliary wheels equipped on the sled can be used both on snow and on land. The carrier vehicle with a sled according to claim 1, wherein the carrier vehicle can also be used for conveyance.

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