JP2015140169A - Traction rear car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a traction rear car which can load cargo also on a platform of a traction vehicle to raise cargo loading efficiency, can be miniaturized as a rear car itself, and is easy to use and keep at a place of a small parking space.SOLUTION: A traction rear car comprises a rear car body which includes a vehicle body on which cargo can be loaded and wheels that are arranged as rotatable at the right and left outsides of the vehicle body, and a coupling platform which couples the vehicle body front end part of the rear car body and the platform part of a traction vehicle to each other. At the coupling platform, the rear end part is coupled to the vehicle body front end part of the rear car body, the front end part is coupled to the platform part of the traction vehicle as detachable and rotatable, and a flat loading surface on the upper surface of which cargo can be loaded is included. The coupling platform includes, at the rear end part of the loading surface, support pillar parts each of which extends downward, the lower end part of the support pillar part is coupled detachable to the vehicle body front end part of the rear car body, and the support pillar part is arranged so as to be foldable against the loading surface.

Description

  The present invention relates to a towing rear car that can be towed by a towing vehicle such as a bicycle or a motorcycle.

  Conventionally, this type of traction rear car is disclosed in, for example, Patent Document 1. This towed rear car is composed of a socket member having a saddle member and a socket attached to a bicycle carrier, and a plug member having a lock end member, a rotating rod and a plug attached to the front end portion of the tow frame of the rear car. Then, by inserting the plug of the plug member into the socket of the socket member, the plunger of the plug bites into the plunger receiving portion of the socket, and the socket member and the plug member, that is, the rear car and the bicycle carrier are connected. .

JP2013-67226A

  However, in such a towed rear car, various types of luggage can be loaded and transported on the loading platform of the rear car, but since the towing frame of the rear car is positioned on the loading platform of the bicycle, the luggage is loaded on the loading platform of the bicycle. It is difficult to load, and the load efficiency of the load that can be loaded on the towing rear car itself is inferior. In addition, when it is desired to increase the amount of luggage that can be loaded, it is necessary to enlarge the loading surface of the rear car, and the towing rear car itself tends to be large. (Parking) becomes difficult.

  The present invention has been made in view of such circumstances, and an object of the present invention is to be able to load a load on the platform of a towing vehicle, thereby improving the load efficiency of the load and reducing the size of the rear car itself. It is possible to provide a towing rear car that can be used and stored in a small parking space.

  In order to achieve the above object, the invention according to claim 1 of the present invention is a rear car body having a vehicle body on which a load can be loaded, a wheel rotatably disposed on the left and right sides of the vehicle body, and the rear car body. A connecting cargo bed that couples a front end portion of the vehicle body and a loading platform portion of the towing vehicle, the connecting cargo bed having a rear end portion connected to the vehicle body front end portion of the rear car body, and a front end portion thereof being the loading platform of the towing vehicle. It is characterized in that it is detachably and rotatably connected to the part and has a flat loading surface on which the load can be loaded.

  According to a second aspect of the present invention, the connecting cargo bed has a column portion extending downward at a rear end portion of the loading surface, and a lower end of the column portion is provided at a vehicle body front end portion of the rear car body. The support column is detachably connected, and the column portion is arranged to be foldable with respect to the loading surface. At this time, as in the invention described in claim 3, the support column is detachably connected to the front end portion of the vehicle body of the rear car body by the operation of the first operation lever, and is connected to the loading surface. It is preferable that it can be folded by the operation of the operation lever.

  Furthermore, the invention according to claim 4 is characterized in that the connecting platform is connected to the platform portion of the towing vehicle through a universal joint provided at a front end thereof so as to be rotatable by a predetermined angle in the horizontal direction and the vertical direction. It is characterized by. The invention according to claim 5 is characterized in that the connecting cargo bed is provided with a narrow portion at the left and right corners on the front end side. The invention according to claim 6 is characterized in that the rear car body is foldable.

  According to the invention described in claim 1 of the present invention, the rear end portion of the coupled cargo bed is coupled to the vehicle body front end portion of the rear car body, and the front edge portion of the coupled cargo bed is detachable and rotatable on the platform portion of the towing vehicle. Since it is connected and has a flat loading surface on which the load can be loaded on the upper surface of the connected loading platform, the load can be loaded on the flat loading surface of the connected loading platform arranged on the loading platform of the towing vehicle, It is possible to increase the load efficiency of the load, and to obtain a towed rear car that can reduce the size of the rear car body and can be easily used and stored (parked) in a small parking space.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the support column has a support column extending downward at the rear end of the loading surface of the coupled cargo bed. The lower end of the rear car body is detachably connected to the front end of the car body of the rear car body, and the support post part is configured to be foldable with respect to the loading surface, so that the connected cargo bed can be easily removed from the rear car body and the towing vehicle, By folding the connection platform, the outer shape can be reduced, and the space for storing the towing rear car can be further reduced.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the support column is detachably connected to the vehicle body front end of the rear car body by the operation of the first operation lever. Since the column can be folded by operating the second control lever on the loading surface, the positional relationship between the column and the loading surface during use can be maintained stably, and the loading condition of the load on the loading surface can be maintained. In addition to being able to stabilize, it is possible to reliably and easily remove and fold the coupled cargo bed by operating the operation levers, and to obtain a towing rear car excellent in usability.

  Further, according to the invention described in claim 4, in addition to the effects of the invention described in claims 1 to 3, the connecting cargo bed is disposed in the horizontal direction on the cargo bed portion of the towing vehicle via a universal joint provided at the front end thereof. Since the rear car body can follow the running of the towing vehicle through the connecting cargo bed, and the towing rear car can stably run because it is connected to the vertical direction so as to be rotatable by a predetermined angle.

  According to the invention described in claim 5, in addition to the effects of the invention described in claims 1 to 4, the narrow portion is provided in the left and right corners on the front end side of the coupled cargo bed. Even when the handle portion or the like is rotated to nearly 90 degrees with respect to the coupled cargo bed, the body of a person operating the towing vehicle can be prevented from coming into contact with the coupled cargo bed, and the towing rear car can travel more stably.

  According to the sixth aspect of the invention, in addition to the effects of the first to fifth aspects of the invention, the rear car body can be folded. The space for storing the towing rear car can be further reduced.

The perspective view which shows one Embodiment of the towing rear car concerning this invention Half plan view of the rear car body The side view Top view of the same cargo bed The side view Rear view (A) of the A section of FIG. 4 is an enlarged view, and (b) is a CC line arrow view of (a). 5A is an enlarged view showing a connected state, and FIG. 5B is an enlarged view showing a disconnected state. (A) which shows the connection state of the connection loading platform and a rear-car main body, (a) is a longitudinal cross-sectional view, (b) is the DD line arrow directional view of (a). The perspective view of the installation state of the connection member for connecting the connection carrier to the towing vehicle Top view of the connecting member The side view Front view of the connecting pin Longitudinal sectional view showing the connected state of the connected carrier to the towing vehicle carrier

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
1 to 14 show an embodiment of a towing rear car according to the present invention. As shown in FIG. 1, the towing rear car 1 includes a rear car main body 2 and a connecting cargo bed 3 connected to a front end portion of a vehicle body 2 a of the rear car main body 2. The front end of the vehicle body 2a of the rear car body 2 is opened by a bottom plate, left and right side plates, a back plate, and the like, and the loading surface of the rear car body 2 is placed inside each plate by the plates and pipe-like frames that support the plates. 2b is formed, and on both sides of the front end portion of the vehicle body 2a, pipe-like frames 2c and the like are provided in a standing state.

  In addition, as shown in FIGS. 1 to 3, a flat plate (or lattice-like) shelf 2d is detachably disposed on the upper portion of the frame 2c in the height direction, and the front and rear of the vehicle body 2a. Wheels 2e are rotatably disposed on both outer sides at intermediate positions in the direction. The rear car body 2 has a bottom plate and a back plate that are divided into two at the center, and is formed so that it can be folded inward about the divided portion by removing or rotating one end of the frame that supports the back plate of each frame. ing.

  The rear car body 2 is formed so that a load can be loaded on the loading surface 2b, and can be loaded on the shelf plate 2d. In addition, to each front end portion of the two bottom plates, an inverted U-shaped bar-shaped locking metal fitting 2f for locking a hook member 14 of a connecting cargo bed 3 described later is fixed, respectively, and the frame 2c A support block 4 having a tightening screw 4a is welded and fixed at a predetermined position in the height direction.

  As shown in FIGS. 1 and 4 to 6, the connecting cargo bed 3 includes a horizontal cargo bed portion 3 a and a column portion 3 b erected in a vertical state downward at the rear end portion of the cargo bed portion 3 a. ing. The loading platform 3a has, for example, five square pipes welded and fixed in a lattice shape, and two round pipes having a U-shape in plan view welded and fixed to the side surfaces of the left and right square pipes. The upper surface of is set to be flush. In addition, a fence 5 having a predetermined height is welded and fixed in a vertical state to the upper surfaces of the front and rear square pipes and the left and right round pipes. Thereby, the flat loading surface 6 is formed inside the fence 5 on the upper surface of each pipe. At this time, the narrow portions 7 are provided on both sides of the front end side of the cargo bed portion 3a by setting the length of the round pipe shorter than the length of the square pipe to which both ends thereof are fixed by welding. .

  A universal joint 8 is disposed on the square pipe in front of the loading platform 3a. As shown in FIG. 7, the universal joint 8 has a threaded portion 8a at the rear end portion, and a joint body 8c having an inner surface formed in a spherical surface 8b and a peripheral surface formed in a spherical surface on a front end side. It is stored so as to be rotatable by a predetermined angle in the direction perpendicular to the direction. Further, the joint body 8c is provided with a through hole 8d penetrating in the vertical direction at the center position thereof.

  Then, the screw hole 9a of the joint support pipe 9 fixed in a state where the screw portion 8a of the universal joint 8 protrudes forward to the lower surface of the intermediate position in the longitudinal direction of the square pipe of the loading platform 3a (FIGS. 5 and 14). The universal joint 8 is disposed on the front end side of the loading platform 3a by being fixed with a screw nut 18 (see FIG. 14). It should be noted that a plurality of band locking portions 10 are provided at predetermined positions on the lower surface side (or side surface side) of each square pipe of the cargo bed portion 3a to lock the fall-preventing band of the load loaded on the loading surface 6. It has been.

  The column part 3b has a pair of left and right vertical columns 11 made of square pipes and a pair of horizontal columns 12 that connect the upper and lower ends of the vertical column 11. The upper end of the vertical column 11 is connected to the lower surface of the rear end of the square pipe of the loading platform 3a so as to be rotatable as shown by the arrow A in FIG. Hook members 14 are respectively disposed. As shown in FIG. 8, the hook member 14 has a pair of side plates 14b each having a locking groove 14a that opens downward. Between the side plates 14b, the locking plate 14c and the operation plate 14d each have an axis. It is rotatably arranged at the center.

  That is, as shown in FIG. 8A, in the locked state in which the locking fitting 2f is pushed into the locking groove 14a, the locking portion of the locking plate 14c is locked to the locking fitting 2f. Thus, the locking plate 14c (hook member 14) is prevented from coming off from the locking metal fitting 2f. From this state, when the operation lever 14d1 of the operation plate 14d is pushed downward as shown by the arrow C in the figure against the urging force of the spring 14e, as shown in FIG. The locking plate 14c is also rotated as shown by the arrow in the figure so that the locked state of the operation plate 14d and the locking plate 14c is released, that is, the locked state of the locking bracket 2f is released. It has become. The configuration of the locking plate 14c and the operation plate 14d of the hook member 14 is not limited to the illustrated example, and an appropriate configuration can be adopted.

  Further, as shown in FIGS. 5 and 6, hinge fixing blocks 15 are fixed by welding at predetermined positions of the vertical columns 11, and the hinge fixing blocks 15 and the square pipes of the loading platform 3a are fixed by hinges. A hinge 16 that can be rotated about a shaft 16a is disposed between each portion. That is, the end of one hinge member 16b is rotatably supported by the square pipe of the loading platform 3a, and the end of the other hinge member 16c is rotatably supported by the hinge fixing block 15. At this time, the hinge members 16b and 16c rotate about the shaft 16a by releasing the locked state by the operation of the operation lever 16d in the direction of the arrow D, that is, the direction of the arrow B (or the direction opposite to the arrow B). The support column 3b can be folded with respect to the loading platform 3a as shown by an arrow A in FIG.

  Further, at the position where the operation lever 16d is not operated, the position is maintained without the hinge members 16b and 16c rotating. The hinge 16 may be a suitably configured hinge that can be folded by manual operation or the like. Furthermore, as shown in FIG. 6, the upper side surface of the vertical column 11 is formed of a substantially L-shaped round pipe, and a support pipe 17 whose tip is supported by the support block 4 of the rear car body 2 as will be described later. The base end portions are fixed by welding in a state of projecting to the left and right sides of the vertical column 11.

  When the towed rear car 1 is used, the coupled cargo bed 3 configured in this way is configured so that the hook member 14 at the lower end of the vertical column 11 is attached to the locking fitting 2f of the rear car body 2 as shown in FIGS. The front end of the support pipe 17 is fitted and fixed to the support block 4 of the rear car body 2 while being locked. At this time, as shown in FIG. 9, the support pipe 17 is closely fitted in the fitting hole 4b of the support block 4, and the position thereof is fixed by the tightening rotation operation of the fastening screw 4a. .

  Then, the height position of the loading surface 2b changes depending on the weight of the load loaded on the loading surface 2b of the rear car body 2 and road conditions, and a force acts so as to bend into the fitting hole 4b portion of the support block 4. Even in this case, the fitted state, that is, the connected state of the connecting cargo bed 3 and the rear car body 2 is stably maintained.

  Next, the connection structure of the connection carrier 3 and, for example, a bicycle as a towing vehicle will be described with reference to FIGS. First, as shown in FIG. 10, the connecting carrier 3 is connected to the bicycle carrier 20 by a connecting member 21 including an upper mounting plate 22, a pair of lower mounting plates 23, and a connecting pin 24. As shown in FIG. 11 and FIG. 12, the upper mounting plate 22 has a central portion formed one step higher, and sandwiching portions 22a are provided on both sides of the central portion in the front-rear direction. Two fixing holes 25 are respectively formed.

  Further, the lower end of the connecting pin insertion tube 26 is fixed to the holding portion 22a on the rear side (left side in FIG. 11) with the lower end of the connecting pin insertion tube 26 standing upright at the center in the longitudinal direction. A joint engaging portion 26a having an outer diameter smaller than that of the lower portion and the same length as the thickness of the universal joint 8 is formed, and an insertion hole 26b is formed in the center position so as to penetrate vertically. The lower mounting plate 23 facing each clamping portion 22 a of the upper mounting plate 22 is formed with a fixing hole 27 having the same inner diameter at a position corresponding to the fixing hole 25 of the upper mounting plate 22. Each of the lower mounting plates 23 is provided with a bent portion 23a that can contact the back surface of the upper mounting plate 22 at one end in the front-rear direction. A fixing hole 29 (see FIG. 11) for fixing the end of the wire 28 connected to the connecting pin 24 described later is provided at the end of the central portion of the upper mounting plate 22.

  As shown in FIG. 13, the connecting pin 24 is cylindrical and has a locking portion 24 a having a predetermined length in which a pair of pins 24 a 1 are arranged at the lower end of the connecting pin 24 so as to protrude and retract with respect to the outer peripheral surface. The operation part 24b integrated in the upper part of the part 24a is provided. The operation portion 24b is provided with an operation button 24b1, and when the operation button 24b1 is pushed as shown by an arrow D in the figure, the pin 24a1 at the lower end of the locking portion 24a resists the biasing force of a spring (not shown) from the outer peripheral surface. It is designed to retract (sink). In addition, one end of the wire 28 for preventing loss is connected to the operation unit 24 b via a ring 30. The length of the locking portion 24a of the connecting pin 24 is set to be the same as the entire length of the insertion hole 26b of the connecting pin insertion tube 26.

  As shown in FIGS. 10 and 14, the connecting member 21 configured as described above includes a metal rod 20 a that constitutes a bicycle carrier 20 between the holding portion 22 a of the upper mounting plate 22 and each lower mounting plate 23. In this state, the metal rods 20a are clamped by the clamping portions 22a and the lower mounting plates 23 using the fixing holes 25 and 27 of the clamping portions 22a and the lower mounting plate 23, the bolts 31 and the nuts 32, respectively. . As a result, the connecting member 21 is fixedly installed on the bicycle carrier 20. Then, as shown in FIG. 14, the through hole 8 d of the universal joint 8 of the connection carrier 3 is fitted from above into the joint engagement portion 26 a of the connection pin insertion cylinder 26 of the connection member 21 fixedly installed.

  In this state, while pressing the operation button 24b1 of the operating portion 24b of the connecting pin 24, the engaging portion 24a is inserted into the through hole 26b of the connecting pin insertion tube 26 from above. When the connecting pin 24 is pushed to a predetermined position (a position where the pin 24a1 becomes the back surface of the upper mounting plate 22) and the pressing operation of the operation button 24b1 is released, the pin 24a1 is moved from the outer peripheral surface which is the initial position by the biasing force of the spring. Returning to a position protruding by a predetermined dimension, the protruding pin 24 a 1 is locked to the back surface of the upper mounting plate 22. As a result, the universal joint 8 is engaged with the joint engaging portion 26a of the connecting pin insertion tube 26 of the upper mounting plate 22, and at this time, the universal joint 8 is rotatable by a predetermined angle in the horizontal direction and the vertical direction. For this reason, the connecting platform 3 is connected to the bicycle platform 20 via the connecting member 21 so as to be rotatable at a predetermined angle, that is, to be rotatable at a predetermined angle in the horizontal and vertical directions.

  That is, in the case of the towed rear car 1, the hook member 14 and the support pipe 17 of the support column 3b of the connecting cargo bed 3 are connected to the front end of the vehicle body 2a of the rear car body 2 by using the locking metal fitting 2f and the support block 4. At the same time, the universal joint 8 of the loading platform 3a of the coupled loading platform 3 is rotatably fitted to the coupling engaging portion 26a of the coupling member 21 of the bicycle loading platform 20 fixed by the stand and coupled by the coupling pin 24. . As a result, the rear car body 2 is connected to the bicycle. In this state, on the stacking surface 2b (bottom plate) of the rear car body 2, for example, a cool box containing food to be delivered is loaded, and a cool box is also mounted on the stack surface 6 of the coupled cargo bed 3, In addition, a shoulder box or the like used for delivery is loaded on the shelf 2d of the rear car body 2, and the delivery person runs the bicycle toward the delivery place.

  At this time, if a load is loaded on the loading surface 2b or shelf plate 2d of the rear car body 2 or the loading surface 6 of the coupled loading platform 3, the weight of the rear car body 2 is increased by that weight, and the load is not loaded. In comparison, the height position of the rear car body 2 is lowered, and this height position is a universal joint which is provided at a connecting portion between the connecting cargo bed 3 and the bicycle cargo bed 20 and is rotatable by a predetermined angle in the vertical direction. 8 is absorbed. As a result, the position change in the height direction of the coupled loading platform 3 due to the unevenness of the road as well as the position variation in the height direction of the coupled loading platform 3 due to the weight of the load is well absorbed by the universal joint 8.

  Further, when the delivery person tries to travel with the direction of the bicycle changed by about 90 degrees, the universal joint 8 can be rotated by a predetermined angle in the horizontal direction and is narrow on the left and right front end sides of the loading surface 6 of the coupled cargo bed 3. Since the part 7 is provided, the delivery person's body is located in the narrow part 7, and the delivery person contacts the coupled loading platform 3 when the towing rear car 1 is going to be largely curved. Will be prevented. As a result, when the rear car body 2 is connected, the towed rear car 1 can be traveled more smoothly by bicycle regardless of various loading conditions, road conditions, traveling conditions, etc., when the delivery person delivers the luggage. .

  On the other hand, when the delivery is finished and the towing rear car 1 is stored (parked) in a garage or the like, it is performed as follows. That is, first, the cold storage box or the shoulder box whose contents are empty is lowered from the loading surfaces 2b and 6 and the shelf 2d, and the connecting pin 24 of the connecting member 21 is pulled upward as indicated by the arrow in FIG. During this pulling, the pin 24a1 is retracted from the outer peripheral surface of the locking portion 24a by pressing the operation button 24b1 of the operating portion 24b, and the locking state between the pin 24a1 and the upper mounting plate 22 is released, and the connecting pin 24 Is pulled out from the insertion hole 26 b of the connecting pin insertion cylinder 26.

  As a result, the locking state of the upper mounting plate 22 and the universal joint 8 is released. In this state, the universal joint 8 is lifted upward so that the universal joint 8 is connected to the joint engaging portion of the connection pin insertion tube 26. 26a is extracted, and the connection state of the connection carrier 3 and the connection member 21 is released. In addition, since the connecting pin 24 pulled out from the connecting pin insertion cylinder 26 is connected to the upper mounting plate 22 by the wire 28, the loss is prevented.

  In this state, the bicycle is parked at a predetermined position, and the connection between the connection loading platform 3 of the towed rear car 1 and the rear car body 2 released from the connection state with the bicycle is released. For this release, first, using the coupled cargo bed 3 as a towing frame, the towing rear car 1 is moved to a predetermined storage position, and the operation lever 14d1 of the hook member 14 of the support column portion 3b of the coupled cargo bed 3 is operated. The locked state between the member 14 and the locking bracket 2f is released. This release is achieved by loosening the tightening screw 4a of the support block 4 and lifting the connecting cargo bed 3 upward and operating the operating lever 14d1 to release the locked state of the hook member 14 and the locking bracket 2f. This can be done by removing 17 from the fitting hole 4 b of the support block 4.

  Then, by operating the operation lever 16d of the hinge 16 of the coupled cargo bed 3 separated from the rear car body 2 to bend the pair of hinge members 16b and 16c, the cargo bed portion 3a and the column portion 3b are folded. Become. The folded connection carrier 3 is stored in a predetermined position. Next, the rear car body 2 is folded by storing one end of the round pipe on the back plate side of the rear car body 2 and stored in a predetermined position together with the connecting cargo bed 3.

  That is, in the case of the towed rear car 1, both the coupled cargo bed 3 and the rear car body 2 can be folded, so that the outer shape of the towed rear car 3 can be stored in a small state. The plates and pipes of the rear car body 2 of the towed rear car 1 and the pipes of the connecting cargo bed 3 are made of aluminum to reduce the weight thereof, and each corner pipe forming the loading surface 6 of the connecting cargo bed 3 is made of aluminum. A narrow groove for preventing slipping of luggage is formed on the surface.

  As described above, according to the towing rear car 1, the rear end portion of the connecting cargo bed 3 is connected to the front end portion of the vehicle body 2a of the rear car body 2, and the front end portion of the connecting cargo bed 3 is detachable and rotatable on the bicycle cargo bed 20. In addition to being connected and having a flat loading surface 6 on the upper surface of the connection carrier 3, it is possible to load a load on the loading surface 6 of the connection carrier 3 disposed on the bicycle carrier 20, and the tow rear car 1 The loading efficiency of luggage can be increased.

  At the same time, the load on the loading surface 2b of the rear car body 2 can be reduced by loading the load on the loading surface 6 of the coupled loading platform 3 capable of securing a relatively large area. Thus, the towed rear car 1 can be obtained which allows the rear car body 2 to be miniaturized and can be used and stored easily in a small parking space.

  In addition, it has a column portion 3b that extends downward at the rear end portion of the loading surface 6 of the connecting cargo bed 3, and the lower end of the column portion 3b is connected to the front end portion of the vehicle body 2a of the rear car body 2 via a locking hook 14. Since the support bracket 3f is detachably connected to the locking bracket 2f and is configured to be foldable with respect to the loading platform 3a, the coupling loading platform 3 can be easily detached from the rear car body 2 and the bicycle, and the coupled loading platform By folding 3, the outer shape can be reduced, and the space for storing the towed rear car 1 can be further reduced.

  Further, the support column 3b is detachably connected to the front end of the vehicle body 2a of the rear car body 2 by the operation of the operation lever 14d1, and the support column 3b can be folded with respect to the loading platform 3a by the operation of the operation lever 16d. In addition, it is possible to stably maintain the connection positional relationship between the support column 3b and the loading platform 3a during use, to stabilize the loading state of the luggage on the loading surface 6 of the loading platform 3a, and to remove and fold the coupling loading platform 3 Can be reliably and easily performed by operating the operation levers 14d1 and 16d, and the towing rear car 1 excellent in usability can be obtained.

  Further, since the coupled cargo bed 3 is connected to the bicycle cargo bed 20 via a universal joint 8 provided at the front end thereof so as to be rotatable at a predetermined angle in the horizontal direction and the vertical direction, the rear car body 2 is connected via the coupled cargo bed 3. It is possible to follow the bicycle traveling well, and the towing rear car 1 can stably travel. Furthermore, since the narrow portion 7 is provided at the left and right corners on the front end side of the coupled cargo bed 3, the bicycle is operated even when the handle portion of the bicycle is rotated to nearly 90 degrees with respect to the coupled cargo bed 3. It is possible to prevent the delivery person's body from coming into contact with the coupled carrier 3, and the towed rear car 1 can travel more stably.

  Further, since the rear car body 2 can be folded, the outer shape of the rear car body 2 can be reduced by folding the rear car body 2 when the towing rear car 1 is stored, and the space for storing the towing rear car 1 can be further reduced. Further, the operation portion 24b of the connection pin 24 of the connection member 21 is provided with an operation button 24b1 that can be pressed from above, and is connected to the upper mounting plate 22 by the wire 28. The pulling rear car 1 can be obtained easily and can be easily performed, and the connecting pin 24 itself can be prevented from being lost.

  In addition, in the said embodiment, although the connection loading platform 3 had the loading platform part 3a and the support | pillar part 3b, and comprised these so that these could be folded, this invention is not limited to this structure, For example, the member corresponded to the support | pillar part 3b Can be fixed to the front end portion of the rear car body 2 in advance, and the connected loading platform 3 having the loading platform portion 3a can be detachably disposed thereon, or the loading platform portion 3a can be fixedly disposed on the rear car body 2 in advance. You can also. Further, in the above embodiment, the connecting platform 3 is detached from the rear car body 2 and the loading platform 3a and the column 3b are folded manually by operating the operation levers 14d1 and 16d. In addition, an appropriate configuration that can be automatically attached and detached or folded can be employed.

  Further, in the above-described embodiment, for example, a locking means for locking the connected cargo bed 3 is provided at a predetermined position of the rear car body 2, and when these are stored, the connected cargo bed 3, the rear car body 2, May be stored in an integrated state. In this case, it is preferable that the folded coupled cargo bed 3 is stored using the dead space of the folded rear car body 2. Further, in the above-described embodiment, the shape of the rear car body 2 and the connecting platform 3, the configuration such as whether or not it can be folded, the configuration of the connecting member 21, etc. are examples, and for example, the connecting member 21 is used. An appropriate configuration can be employed without departing from the gist of each invention according to the present invention, such as a configuration corresponding to the configuration of the loading platform 20 of the bicycle (towing vehicle).

  The present invention is not limited to a towed rear car used for storing and delivering food in a cold box or the like, but for example, a towed rear car for loading and delivering various packages packed as in a courier service etc. It can also be used for various towing rear cars.

1. Towing rear car 2 .... Rear car body 2a ... Car body 2b ... Loading surface 2d ... Shelf 2f ... ································································································ Support block · Loading surface 7 ········· Narrow portion 8 ·························· 8d ················································································ 14 .... Hook member 14d1 ... Operating lever 16 ... Hinge 16d ... Operating lever 17 ... Support pipe 20 ... Load 21 ··································· 22 6a: Joint engaging part

Claims (6)

A rear car body having a vehicle body on which a load can be loaded and wheels rotatably disposed on the left and right outer sides of the vehicle body; and a connecting load bed for connecting a front end portion of the vehicle body of the rear car body and a load carrier portion of the towing vehicle. ,
The connecting cargo bed has a rear end portion connected to a front end portion of the rear car body, and a front end portion of the connecting cargo bed that is detachably and rotatably connected to the loading platform portion of the towing vehicle. A towing rear car characterized by having a flat loading surface.   The connecting cargo bed has a column portion extending downward at the rear end portion of the loading surface, and the lower end of the column portion is detachably connected to the vehicle body front end portion of the rear car body, and the column portion The traction rear car according to claim 1, wherein the traction rear car is arranged to be foldable with respect to the loading surface.   The support column is detachably coupled to the front end of the rear car body by operating a first operating lever, and is foldable with respect to the stacking surface by operating a second operating lever. A towing rear car according to claim 2.   4. The connecting carrier is connected to a carrier part of the towing vehicle via a universal joint provided at a front end portion thereof so as to be rotatable at a predetermined angle in a horizontal direction and a vertical direction. The towed rear car described in Crab.   The towed rear car according to any one of claims 1 to 4, wherein the connecting cargo bed is provided with narrow portions at left and right corners on a front end side thereof.   The towed rear car according to any one of claims 1 to 5, wherein the rear car body is foldable.

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