JP4583165B2 - trailer - Google Patents

Description

  The present invention relates to a trailer, and more particularly, to a trailer suitable for mounting a pair of left and right endless tracks, or a small farm vehicle that travels with one or two or more wheels or tires.

  Conventionally, as shown in Patent Documents 1 to 4, for example, various types of trailers that are loaded with some luggage, equipment, machines, instruments, vehicles, small ships, etc. and are driven by towing vehicles have been proposed. ing. However, no trailer suitable for mounting a pair of left and right endless tracks, or a small farm vehicle that travels with one or two or more wheels or tires on the left and right has been proposed. The present situation is that, for example, a trailer for a small ship is remodeled and a loading plate is attached to both sides of the trailer wheel, and is used as an emergency.

However, these small boat trailers are modified with extra carrier plates on both sides of the trailer wheels, which increases the weight and removes only the trailer part from the towing vehicle. In some cases, a great deal of labor is required and handling is not easy. Also, because it is not originally made for agricultural vehicles, it contains a lot of unnecessary members, the structure is complicated, it is somewhat unstable or it comes in contact with the agricultural vehicle to be mounted, There was a problem that they could be damaged each other.
JP-A-8-225037 JP 2000-33888 A JP 2002-46662 A JP 2004-183398 A

  The present invention has been made to solve the above-described conventional problems, and is a small farm work that is simple and lightweight in structure and can be easily transported and moved even when detached from a towing vehicle. It is an object to provide a trailer suitable for transporting vehicles.

  The present invention relates to a pair of left and right wheels; a pair of left and right vertical members that support the axles of these wheels via a suspension device and are perpendicular to the axle at a position higher than the axle, and left and right vertical members near the front end thereof. An upper frame including a connecting member to be connected as a component; connected to a plurality of leg members lowered from the upper frame, and sandwiching a pair of left and right wheels from the front and rear at a position below the upper frame Two front and rear projecting lateral members parallel to the axle and having projecting portions arranged close to the wheels and projecting outward from the left and right wheels; left and right wheels of the two front and rear projecting lateral members A pair of left and right cargo bed plates perpendicular to the axle, which extend over the left and right portions extending outward and extend forward and rearward than the two front and rear protruding lateral members; one end connected to the connecting member The other end It is intended to solve the above problems by providing a trailer comprising a tow bar having a connection mechanism between the towing vehicle.

  In the trailer of the present invention, the tow bar can be rotated around an axis parallel to the axle with respect to the connecting member, and the rotation position can be temporarily fixed at a position parallel to the pair of left and right vertical members. It is desirable that it is attached. As a result, when mounting a farm vehicle, etc. on the trailer, release the temporary fixing of the tow bar and tilt the trailer's loading plate backwards to facilitate the mounting of the farm vehicle, etc. The traction bar can be temporarily fixed at a position parallel to the pair of vertical members to perform traction.

  The trailer of the present invention preferably has a brake mechanism for the left and / or right wheels, and the operation end of the brake mechanism is provided in front of the front end of the cargo bed plate. Thus, by providing the operation end of the brake mechanism in front of the front end of the load carrier plate, even when a farm vehicle or the like is mounted, the operator can easily operate the operation end to apply the brake, Or cancel it. Furthermore, the trailer of the present invention can be equipped with a winch mechanism having a hook that engages with the engaging portion of the towing vehicle. When the trailer of the present invention includes the winch mechanism, the trailer is pulled. Approaching the vehicle can be easily performed with little effort.

  The trailer of the present invention is configured as described above, and the load carrier plate is supported by the two front and rear projecting lateral members connected to the plurality of leg members lowered downward from the upper frame. In addition to being simple, it is lightweight and has the advantage of being easy to handle. Moreover, since the height of the loading platform plate can be kept low while the shock absorber for the wheels is provided, there is also an advantage that it can be easily mounted on a trailer such as a farm vehicle and loaded / unloaded from the trailer. Furthermore, since the tow bar is temporarily fixed in parallel with the pair of left and right vertical members at the same height as the pair of left and right vertical members constituting the upper frame, the traction force by the tow vehicle is directly applied to the trailer. There is an advantage that traction is performed smoothly and efficiently. In addition, since the operation end of the brake is in front of the front end of the load carrier plate, there is an advantage that the brake operation can be easily performed even when a farm vehicle or the like is mounted. In addition, when the trailer of the present invention includes a winch mechanism, it is possible to obtain an advantage that the trailer can be easily approached with little effort with less effort.

  Hereinafter, the present invention will be described in detail with reference to the drawings, but the present invention is not limited to the illustrated one.

  FIG. 1 is a plan view showing an example of the trailer of the present invention, and FIG. 2 is a perspective view showing only the frame portion taken out. In FIG. 1, 1 is a trailer of the present invention, 2a and 2b are a pair of left and right wheels, and 3 is an axle. In the illustrated example, the wheels 2a and 2b are wheels with tires, but may be simple wheels without tires depending on circumstances. 4a and 4b are suspension devices that support the wheels 2a and 2b in a suspended state, respectively. The suspension devices 4a and 4b are supported by a pair of left and right vertical members 5a and 5b perpendicular to the axle 3. Thus, the wheels 2a and 2b are supported by the vertical members 5a and 5b via the suspension devices 4a and 4b, respectively. Any suspension device 4a, 4b may be used as long as it can maintain the wheels 2a, 2b in a suspended state, and for example, a leaf spring, a torsion axle, or the like can be used.

  As shown in FIG. 2, the front ends of the vertical members 5a and 5b are connected by a connecting member 6, and the pair of vertical members 5a and 5b and the connecting member 6 constitute a U-shaped upper frame. Yes. In the illustrated example, only the front ends of the vertical members 5a and 5b are connected by the connecting member 6, and the rear ends of the vertical members 5a and 5b are not connected. However, if necessary, the rear ends of the vertical members 5a and 5b are also connected. The upper frame may be formed in a square shape having four sides by being connected by another connecting member. Moreover, you may make it connect the intermediate part before and behind the vertical members 5a and 5b with another connection member. The connecting position of the connecting member 6 may be in the vicinity of the front ends of the vertical members 5a and 5b, and the front ends of the vertical members 5a and 5b may protrude forward from the connecting member 6. In this specification, “front” refers to the front of the trailer 1 in the direction of travel (leftward in FIG. 1), and “rear” refers to the back of the trailer 1 in the direction of travel (rightward in FIG. 1). It shall be said.

  Four leg members 7a to 7d are lowered downward from the upper frame constituted by the vertical members 5a and 5b and the connecting member 6, and these leg members 7a to 7d include two front and rear members. The protruding lateral members 8a and 8b are connected. In the illustrated example, the leg members 7a and 7b are lowered from the vertical member 5a, and the leg members 7c and 7d are lowered from the vertical member 5b, but the positions of the leg members 7a to 7d are as shown. Not limited to. For example, one or a plurality of leg members may be lowered from the connecting member 6, and the protruding horizontal member 8 a may be connected to the leg member, or there is a connecting member that connects the rear ends of the vertical members 5 a and 5 b. In this case, one or more leg members may be lowered from the connecting member, and the projecting lateral member 8b may be connected to the leg member.

  The overhanging lateral members 8a, 8b have portions that protrude outward from the left and right wheels 2a, 2b, and a pair of left and right cargo bed plates 9a, 9b are stretched over the portions protruding outward. Thus, the pair of left and right cargo bed plates 9a and 9b are supported by the two front and rear projecting lateral members 8a and 8b. 10a and 10b are side vertical members extending in the front-rear direction by connecting the left ends and right ends of the overhanging horizontal members 8a and 8b, respectively. The front ends of these side vertical members 10a and 10b are front horizontal members. 11 are connected. 12, 12, 12... Are reinforcing vertical members. The side vertical members 10a and 10b, the front horizontal member 11, and the reinforcing vertical members 12, 12, 12... 13a and 13b are a pair of left and right treads that are rotatably attached to the rear ends of the left and right cargo bed plates 9a and 9b.

  Thus, in the trailer 1 of the present invention, the plurality of leg members 7a to 7d are lowered downward from the upper frame including the vertical members 5a and 5b and the connecting member 6 as components, and the plurality of leg members 7a to 7d. The pair of left and right overhanging lateral members 8a and 8b connected to each other support the pair of left and right cargo bed plates 9a and 9b, so that the structure of the frame constituting the trailer 1 can be simplified. . Moreover, as is apparent from FIG. 1, the two front and rear projecting lateral members 8a and 8b sandwich the pair of left and right wheels 2a and 2b from the front and rear, and are arranged at positions close to the wheels 2a and 2b. Therefore, it is possible to shorten the length of the vertical members 5a and 5b of the upper frame that supports the projecting horizontal members 8a and 8b via the leg members 7a to 7d, and the upper frame can be made smaller. There is an advantage that the weight of 1 can be reduced.

  The positions of the two front and rear projecting lateral members 8a and 8b are preferably as close to the wheels 2a and 2b as possible, and the distance between the two projecting lateral members 8a and 8b in the front-rear direction of the trailer 1 is: Although it depends on the size of the wheels 2a, 2b, it is preferably 2/3 or less of the length in the front-rear direction of the carrier plates 9a, 9b, more preferably 1/2 or less. Accordingly, the length of the pair of left and right vertical members 5a and 5b constituting the upper frame is preferably as close as possible to the distance between the two protruding horizontal members 8a and 8b. It is preferably 2/3 or less, more preferably 1/2 or less. Thereby, the structure of an upper frame becomes simple and can implement | achieve weight reduction.

  Furthermore, in the trailer 1 of the present invention, the loading platform plates 9a and 9b are laid on the trailer 1 and the overhanging lateral members 8a and 8b that support the loading platform plates 9a and 9b are in a position lowered below the upper frame. By supporting the wheels 2a and 2b via the suspension devices 4a and 4b, the height of the carrier plates 9a and 9b can be kept low even when the height of the upper frame is increased. It is also possible to obtain an advantage that it is easy to mount the unit on the trailer 1 and to load and unload the trailer 1.

  In FIG. 1, reference numeral 14 denotes a tow bar, and a rear end thereof is attached to a connecting member 6 via a support 15 so as to be rotatable around an axis parallel to the axle 3. However, the rotatable range is limited by contacting the front lateral member 11 on the lower side and limited by the guide tool 16 on the upper side. The guide 16 will be described later. The rotation position of the tow bar 14 can be temporarily fixed at a position parallel to the vertical members 5a and 5b by attaching a fixing pin (not shown) to the support tool 15. Of course, the means for temporarily fixing the rotational position of the tow bar 14 is not limited to the fixing pin. At the front end of the tow bar 14, a connection mechanism 17 with a tow vehicle (not shown) is provided. Although the specific structure of the connection mechanism 17 may be anything, for example, a ball coupler type connection mechanism can be used. An electric wire plug 18 is connected to a corresponding portion of the tow vehicle, and can receive electric power from the tow vehicle and an electric signal as required.

  Reference numerals 19a and 19b denote brake mechanisms for the left and right wheels 2a and 2b, respectively. In the illustrated example, the brake mechanisms 19a and 19b are configured as rod-like members that penetrate the front projecting lateral member 8a and the front lateral member 11. Reference numerals 20a and 20b denote operation ends of the brake mechanisms 19a and 19b, respectively, which protrude to the front side from the front lateral member 11, and are located in front of the front ends of the cargo bed plates 9a and 9b. 21a and 21b are contact ends that contact the ground contact surfaces of the wheels 2a and 2b, respectively, and prevent the rotation of the wheels 2a and 2b. In the illustrated example, when the operation ends 20a and 20b are rotated, the rod-shaped members constituting the brake mechanisms 19a and 19b are moved in the front-rear direction by the screw mechanism, and when the operation ends 20a and 20b are moved rearward, the contact end 21a. , 21b abuts against the ground contact surfaces of the wheels 2a, 2b, respectively, and prevents the wheels 2a, 2b from rotating and functions as a brake. Needless to say, the brake is released if the operation ends 20a and 20b are operated to move the contact ends 21a and 21b forward to release the contact with the ground contact surfaces of the wheels 2a and 2b. As described above, in the trailer 1 of the present invention, the operation ends 20a, 20b of the brake mechanisms 19a, 19b are provided in front of the front ends of the cargo bed plates 9a, 9b. Even in a state in which the operator is mounted, there is an advantage that the operator can easily perform the brake operation in the vicinity of the operation ends 20a and 20b. In the illustrated example, brake mechanisms 19a and 19b are provided for both the left and right wheels 2a and 2b. However, if the brake is sufficient, a brake mechanism is provided only for either the right or left wheel. You may do it. Needless to say, the brake mechanism that can be employed is not limited to that shown in the drawings, and other appropriate brake mechanisms that are generally used in general vehicles may be employed. 22 and 22 are bumpers, and 23 and 23 are vehicle width lights.

  FIG. 3 is a front view of the trailer 1 of FIG. 1 as viewed from the front. The same components as those described above are denoted by the same reference numerals, but the bumpers 22, 22 and the like are partially omitted. The agricultural vehicle X mounted on the trailer 1 according to the present invention, as shown by broken lines in the figure, has its left and right endless tracks mounted on the left and right cargo bed plates 9a and 9b, respectively, and straddles the wheels 2a and 2b. It will be mounted on the trailer 1. As shown in the drawing, the guide 16 forms a vertically long space whose upper portion is closed in an arch shape, and the axle of the tow bar 14 is accommodated by the tow bar 14 being accommodated in the vertically long space. 3 is used to guide the rotation around an axis parallel to 3. Further, since the upper portion of the guide tool 16 is closed in an arch shape, the upper end of the tow bar 14 is closed even if the tow bar 14 tries to rotate upward from a position parallel to the vertical members 5a and 5b. It also plays a role of abutting the arch portion and limiting the upward rotation range of the tow bar 14.

  FIG. 4 is a cross-sectional view taken along the line AA in FIG. 1, and the same components as those described above are denoted by the same reference numerals. As FIG. 4 shows, the wheel 2b is supported by the vertical member 5b via the suspension apparatus 4b. Leg members 7c and 7d are lowered downward from an upper frame including the vertical member 5b and the connecting member 6 as components, and support the two front and rear projecting horizontal members 8a and 8b. The overhanging lateral members 8a and 8b support the loading platform plate 9b, and the loading platform plate 9b is mounted with, for example, a farm vehicle X indicated by a broken line in the figure. In addition, the tread 13b of the loading platform 9b rotates around the rotation shaft 24 and rotates to a position indicated by a broken line in the drawing, connects the ground and the loading platform 9b, and is mounted on the mounted vehicle. Easy loading and unloading.

  As shown in FIG. 4, the tow bar 14 is usually temporarily fixed at a position parallel to the vertical member 5b at the same height as the vertical member 5b. When the tow bar 14 is connected to a towing vehicle (not shown), the tow bar 14 is usually horizontal, and therefore the vertical member 5b is also horizontal, and the tow bar 14 and the vertical member 5b are on the same horizontal plane. The positions are parallel to each other. In this state, when the tow bar 14 is pulled in the direction of the arrow in the drawing by a towing vehicle (not shown), the pulling force is transmitted horizontally to the connecting member 6 and further to the vertical member 5b, and the trailer 1 is towed. In this way, in the trailer 1 of the present invention, the traction force by the towing vehicle is transmitted to the upper frame constituting the trailer 1 horizontally through the horizontal traction bar 14, so that the traction is performed smoothly and efficiently. Is obtained.

  FIG. 5 is a diagram showing a state when the vehicle is mounted on the trailer 1 in the side sectional view of FIG. 4. Prior to the start of mounting, as shown in FIG. 5, the tread 13 b is rotated to lower its tip to the ground, and a fixing pin (not shown) attached to the support 15 is removed to attach the tow bar 14 to the support 15. On the other hand, it is allowed to rotate around an axis parallel to the axle 3. At this time, since the front end of the tow bar 14 is normally connected to a tow vehicle (not shown), the tow bar 14 is maintained in a horizontal state as it is.

  In this state, when the vehicle X is advanced from the right side in the drawing and mounting is started, when the vehicle X gets on the tread 13b, the cargo bed plate 9b is inclined rearward, but the tow bar 14 is Since the support tool 15 is rotatable about an axis parallel to the axle 3, the tow bar 14 can be kept in a horizontal state with its tip connected to a towing vehicle (not shown). is there. Note that the lower limit of the downward rotation range of the tow bar 14 is set so that the horizontal state can be maintained even when the loading platen 9b is inclined most backward due to the weight of the vehicle X.

  When the vehicle X further travels and rides on the carrier plate 9b and the center of gravity of the vehicle X approaches the axle 3, the carrier plate 9b gradually returns to the horizontal state, and when the loading is completed, the carrier plate 9b Become. At this point, the tread 13b is rotated to return to the vertical position, and a fixing pin (not shown) is attached to the support 15 to fix the tow bar 14 to the original horizontal position. Thereby, the mounting of the vehicle X on the trailer 1 is completed. When the vehicle X is taken down from the trailer 1, the above may be reversed.

  FIG. 6 is a perspective view showing an example when the trailer 1 of the present invention is connected to a towing vehicle. In FIG. 6, the connection mechanism 17 provided at the tip of the traction bar 14 is a ball coupler type connection mechanism, and a hitch ball as a connection part attached to a hitch member 25 attached to the rear part of the tow vehicle Y. The traction bar 14 is connected to the traction vehicle Y by engaging with the traction vehicle 26. Reference numeral 27 denotes a winch, and a hook 29 is attached to the tip of the wire 28 of the winch 27. When the hook 29 is engaged with the engaging portion 30 provided on the hitch member 25 and the winch 27 is wound up in this state, the trailer 1 (not shown) to which the tow bar 14 is connected is indicated by an arrow in the drawing together with the tow bar 14. The ball coupler type connecting mechanism 17 and the hitch ball 26 can be easily engaged by moving in the direction and approaching the towing vehicle Y. As described above, when the winch 27 is attached to the tow bar 14 of the trailer 1, the operator causes the hook 29 of the winch 27 to be the engaging portion 30 of the towing vehicle Y and winds the winch 27 by a simple operation. The trailer 1 can be brought close to the towing vehicle Y without requiring much labor. Instead of attaching the winch 27 to the tow bar 14, the winch 27 may be attached to the towing vehicle Y, and the engaging portion 30 that engages the hook 29 of the winch 27 may be provided on the tow bar 14 or the trailer 1 body. . Further, instead of attaching the winch 27 to the tow bar 14, the winch 27 may be attached to an appropriate place in the trailer 1 body.

  FIG. 7 is a plan view showing another example when the trailer 1 of the present invention is connected to a towing vehicle. In the example of FIG. 7, two winches 27 a and 27 b are attached to the tow bar 14, and each of the hooks 29 a and 29 b has two right and left engaging portions 30 a attached to the hitch member 25. , 30b. When the winch 27a or 27b is wound up in this state, the tow bar 14 and the trailer 1 (not shown) connected thereto are pulled in the direction of the towing vehicle Y with which the hook of the wound winch is engaged. . Therefore, for example, even when the tow bar 14 is at a position that is obliquely displaced with respect to the hitch member 25, the hitch ball 14 is correctly perpendicular to the hitch member 25 by rolling up one of the winches 27a or 27b. 26 can be moved to a central position facing 26. After the tow bar 14 moves to the center position at a right angle with respect to the hitch member 25, the winches 27a and 27b may be wound up evenly. In this case, it is needless to say that the winches 27a and 27b may be attached to appropriate positions of the trailer 1 main body (not shown) instead of the tow bar 14. Further, the winches 27 a and 27 b may be attached to the hitch member 25 side, and the engaging portions 30 a and 30 b may be attached to the tow bar 14 or the main body side of the trailer 1.

  FIG. 8 is a perspective view showing still another example when the trailer 1 of the present invention is connected to a towing vehicle. In FIG. 8, as a hitch member, a hitch bracket 31 is attached to a towing vehicle Y (not shown) instead of the hitch member 25, and the hitch bracket 31 includes two guide members 32 a whose intervals increase toward the tip. 32b is detachably attached. Thus, by attaching the two guide members 32a, 32b to the hitch bracket 31, the hook 29 of the winch 27 (not shown) is engaged with the engaging portion 30, and when the winch 27 is rolled up, the connection mechanism of the tow bar 14 The ball coupler 17 is gradually guided to the guide members 32a and 32b after gradually approaching the hitch bracket 31, and is naturally guided to a predetermined position suitable for connection immediately above the hitch ball 26 as a connection portion. The ball coupler 17 is easily engaged with the hitch ball 26 by moving the ball coupler as the connection mechanism 17 downward at that position. Thus, by providing the guide members 32 a and 32 b on the hitch bracket 31, the connection mechanism 17 of the tow bar 14 is suitable for engagement close to the hitch ball 26 as a connection portion provided on the hitch bracket 31. It becomes easier to move to a predetermined position. When the engagement between the ball coupler as the connection mechanism 17 and the hitch ball 26 is completed, the guide members 32a and 32b are removed from the hitch bracket 31 so as not to hinder the movement of the tow bar 14 relative to the towing vehicle Y. When the guide members 32a and 32b do not hinder the movement of the tow bar 14 relative to the towing vehicle Y, it is not necessary to remove the guide members 32a and 32b. In this case, the guide members 32a and 32b are not hitch brackets. It may be fixedly attached to 31.

  In the illustrated example, the case where the guide members 32a and 32b are provided in the hitch bracket 31 has been described. However, the guide member 32a, 32b is not the hitch bracket 31 but the hitch member 25 attached to the tow vehicle Y. Similarly, by attaching the members 32 a and 32 b to appropriate positions of the hitch member 25, it is possible to easily move the connection mechanism 17 of the tow bar 14 to a predetermined position close to the hitch ball 26. is there.

The guide members 32a and 32b have any shape as long as they can guide the connection mechanism 17 provided on the traction bar 14 to a predetermined position suitable for connection. Also good. For example, when the hitch member attached to the towing vehicle is a hitch bracket 31 as shown in FIG. 8, instead of the guide members 32a and 32b, a plate-like member is formed so as to form a part of a cylinder. A member bent with a curvature larger than that of the hitch ball 26 is erected on the rear side of the hitch ball 26, that is, on the side close to the towing vehicle Y, with the inner side of the curve directed toward the hitch ball 26, and the guide member 32. It is good. When the distal end portion of the connecting mechanism 17 of the tow bar 14 comes into contact with the guide member 32, the connection mechanism 17 is guided to the deepest position of the curve along the curved surface of the guide member 32, and is moved downward at that position. Thus, the hitch ball 26 is easily engaged. In the case of the guide member 32 having such a shape and arrangement, even after the traction bar 14 and the traction vehicle Y are connected, the movement of the traction bar 14 with respect to the traction vehicle Y is not hindered.

  Note that the connection mechanism described based on FIGS. 6 to 8 is not used only when the trailer 1 of the present invention is connected to a towing vehicle. Even when a trailer other than the trailer of the present invention described based on FIGS. 1 to 5 is connected to a towing vehicle, a winch or a guide member as described based on FIGS. 6 to 8 can be used. Of course, the winch is particularly effective when bringing a large and heavy trailer close to the towing vehicle, and even a heavy trailer can easily approach the towing vehicle without requiring labor. The advantage that it can be made is obtained.

  As described above, the trailer 1 according to the present invention is mounted on the left and right carrier plates 9a and 9b with the left and right endless tracks or the left and right wheels, tires, and the like of the mounted vehicle mounted thereon. Tea plantation suitable for mounting a small farm vehicle that travels with one or more pairs of wheels or tires, and in particular, has a relatively high space between a pair of left and right endless tracks It is suitable for installing a control machine and a tea garden plucking machine. However, any vehicle can be used for the trailer 1 according to the present invention as long as the vehicle can be mounted on the left and right carrier plates 9a and 9b with the left and right endless tracks or the left and right wheels or tires mounted thereon. The vehicle mounted as a target is not limited to a farm vehicle including a tea garden control machine or a tea garden plucking machine.

  As described above, the trailer of the present invention has a simple structure and can be made lightweight, so that it can be easily removed from the towing vehicle and moved. In addition, since the trailer of the present invention can suppress the height of the carrier plate while having a suspension device for wheels, the mounted vehicle can be transported stably and safely, and mounted on the trailer of the vehicle. It has the excellent advantage of easy loading and unloading work from the trailer. Furthermore, the trailer of the present invention can perform traction stably and efficiently because the traction bar can transmit the traction force horizontally to the trailer. Thus, the trailer according to the present invention having various advantages, for example, is effective in mounting and transporting a tea garden control machine used in a tea garden or a tea garden plucking machine, contributing to work efficiency and mechanization. It is.

It is a top view which shows an example of the trailer of this invention. It is the perspective view which took out only the frame part of the trailer of this invention shown in FIG. It is a front view of the trailer of this invention shown in FIG. It is an AA cross section side view of FIG. It is a cross-sectional side view which shows the condition when mounting a vehicle on the trailer of this invention. It is a perspective view which shows an example in the case of connecting the trailer of this invention to a tow vehicle. It is a top view which shows the other example at the time of connecting the trailer of this invention to a towing vehicle. It is a perspective view which shows the further another example in the case of connecting the trailer of this invention to a towing vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Trailer 2a, 2b Wheel 3 Axle 4a, 4b Suspension device 5a, 5b Vertical member 6 Connecting member 7a-7d Leg member 8a, 8b Overhanging horizontal member 9a, 9b Loading board 10a, 10b Side vertical member 11 Front side horizontal member 12 Reinforcing member 13a, 13b Tread 14 Pulling bar 15 Support 16 Guide 17 Connection mechanism 18 Electrical plug 19a, 19b Brake mechanism 20a, 20b Operation end 21a, 21b Contact end 22 Bumper 23 Vehicle width light 24 Rotating shaft 25 Hitch member 26 Hitch ball 27 Winch 28 Wire 29 Hook 30 Engaging portion 31 Hitch bracket 32a, 32b Guide member X mounted vehicle Y towing vehicle

Claims (4)

  A pair of left and right wheels; a pair of left and right vertical members that support the axles of these wheels via a suspension device and are perpendicular to the axle at a position higher than the axle, and a connecting member that connects the left and right vertical members in the vicinity of the front end thereof An upper frame that includes a pair of left and right wheels that are connected to a plurality of leg members that are lowered from the upper frame and sandwich the pair of left and right wheels from the front and rear. Two projecting lateral members parallel to the axle and having projecting portions that protrude outward from the left and right wheels; outwardly from the left and right wheels of the two lateral projecting lateral members A pair of left and right cargo bed plates perpendicular to the axle, which are stretched between the left and right protruding parts and extend forward and rearward than the two front and rear protruding horizontal members; one end connected to the connecting member and the other end Tow vehicle Trailer comprising a tow bar having a connection mechanism.   The tow bar is attached to the connecting member so as to be rotatable about an axis parallel to the axle and to be temporarily fixed at a position parallel to the pair of left and right vertical members. trailer.   The trailer according to claim 1, further comprising a brake mechanism for the left and / or right wheels, wherein the operation end of the brake mechanism is provided in front of the front end of the loading platform plate.   The trailer according to any one of claims 1 to 3, further comprising a winch mechanism having a hook that engages with an engaging portion of the tow vehicle.

Images