JP2006044456A - Leg accommodation type handcart and its accommodating structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a leg accommodation type handcart assuring easiness in handling. <P>SOLUTION: The handcart 1 is configured so that an accommodator 3 to accommodate objects to be transported is set on a load placing part 5 fitted with a handle 52a for pushing by hand and the part 5 is supported by folding legs 7. A lock fixing piece 77 is fixed to a supporting link 7 on one side constituting the leg 7 and is furnished with a plurality of recesses 77a. The load placing part 5 is equipped rotatably with a lock moving piece 58 to be engaged with the recess 77a in the lock fixing piece 77, and the legs 7 can take the intermediate state supporting the load placing part 5 and able to run between the folded, accommodated condition and the rising condition able to run. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a leg retractable handcart.

As a prior art, there has been a hand cart that is provided with a pair of support legs on the lower surface of a table on which a transported article is placed, and which can be folded (see, for example, Patent Document 1). According to this prior art, since the support leg is fixed only at the two positions of the standing position where it can run and the folded position, for example, the cart is pulled out from the state where the support leg is folded and mounted on the loading platform of the vehicle. When the tip part is dropped by its own weight and changed to a state where it can run on the ground, if the height of the loading platform is insufficient, the support leg may not stand up sufficiently and remain fixed. In this case, it is necessary for the transporter to lift the table by himself and fix the support legs in an upright state, and the workability is poor.
JP-A-4-11558

  The present invention has been completed based on the above circumstances, and an object thereof is to provide a leg retractable handcart with good operability.

  As means for achieving the above-mentioned object, the invention of claim 1 comprises a loading part on which a transported article is placed, and a leg part having a wheel at the lower end part and supporting the aforementioned writing part from below. In a leg-retractable wheelbarrow that can be switched between a standing state in which the leg can run and a retracted state in which the size in the vertical direction is reduced by being folded, the leg is in the standing state from the retracted state In the middle of the change, the leg storage wheelbarrow is characterized in that it is fixed to at least one intermediate state that supports the above-mentioned coin part from below and can travel.

In the invention of claim 2, the lock fixing body is fixed to one side of the coin part and the leg part, and when the lock fixing body is engaged to the other side, the leg part is fixed to be able to run, When this engagement is released, a movable movable body is provided that enables the leg portion to change to the retracted state, and at least one of the fixed lock body and the movable movable body is changed in mutual engagement position. 2. The leg retractable handcart according to claim 1, further comprising a possible engaging portion.
According to a third aspect of the present invention, a plurality of engagement locations are set in the engagement portion, and the change of the engagement location is allowed in a direction in which the leg portion shifts from the retracted state to the standing state. The leg retractable handcart according to claim 2, wherein a detent mechanism for restricting the change in a reverse direction is set.

  According to a fourth aspect of the present invention, there is provided a storage structure for storing the leg storage wheelbarrow according to the second or third aspect in a cargo compartment of a vehicle, wherein the lock movable body includes a peripheral portion of the cargo compartment. And a contact portion that contacts with the peripheral edge portion, whereby the lock movable body is rotated and the engagement state with the lock fixed body is released. The retractable structure of the leg retractable wheelbarrow is used.

<Invention of Claim 1>
In the middle of changing from the stowed state to the standing state, the leg portion is fixed to at least one intermediate state that supports the loading portion from below and can run, so that the leg portion is raised from the stowing state to the standing state. When changing, even if the leg portion does not stand up sufficiently, the leg portion is fixed in the intermediate state and can travel.

<Invention of Claim 2>
According to the invention of claim 2, since the engaging portion of the lock fixing body and the lock movable body can change the engaging portion of each other, the leg portion can be fixed in an upright state and various intermediate states can be used. It can be changed.
<Invention of Claim 3>
According to the invention of claim 3, since the engaging portion functions as a detent mechanism, the leg portion can be fixed in an upright state by further lifting the loading portion without releasing the lock movable body. .

<Invention of Claim 4>
The movable movable body is formed with an abutting portion that comes into contact with another member in the traveling direction during traveling, and the movable movable body is rotated by the abutting portion coming into contact with the other member to engage with the lock fixed body. By adopting a configuration in which the state is released, even if the transporter does not rotate the lock movable body directly by hand etc., the lock movable body is rotated only by the operation of the wheelbarrow and the leg is stored. Can be changed.

<First Embodiment>
A first embodiment of the present invention will be described with reference to FIGS. In the description, the left side of FIG. 4 is the front side, and the left-right direction is the calling direction when the front side is viewed from the handle 52a. A cart 1 (corresponding to a leg retractable handcart of the present invention) according to the present embodiment includes a container 3 for storing a transported object (not shown), a loading part 5 on which the container 3 is placed, and a loading part 5. The leg part 7 supported from the downward direction is provided. As shown in FIG. 2, the container 3 is detachably attached to the loading unit 5. The container 3 is provided with a frame 31 formed in a substantially rectangular parallelepiped shape with a metal wire, and usually a box member in which a transported article is stored is housed therein. Although the container 3 is slidably attached to the loading part 5, the structure for the movement and the attachment / detachment method with respect to the loading part 5 are mentioned later.

  The loading unit 5 is formed by fixing an operating body 52 to the rear of a support body 51 that is formed symmetrically by bending a highly rigid metal pipe material. The operation body 52 is also formed by bending a pipe material similar to that of the support body 51 left and right symmetrically, and a handle 52a that is manually pushed by a transport operator extends in the left and right direction at the upper end portion thereof. A connection beam 53 is fixed to the lower side of the handle 52a so as to connect the left and right, thereby improving the rigidity of the operation body 52. A pair of guide rails 54 extending horizontally in the left-right direction when viewed from the handle 52a side are fixed to the upper side of the support 51 so as to be parallel to each other by welding or the like. The guide rail 54 will be described in detail later.

  In addition, a pair of left and right guide rollers 55 that perform a guiding function when the cart 1 is mounted in the luggage compartment LS of the vehicle AM as described later are rotatably attached to the front end portion of the support body 51. . The guide roller 55 is formed of a material that is less aggressive to other members such as synthetic rubber or synthetic resin material. Furthermore, a pair of left and right engaging portions 56 for fixing the cart 1 to the luggage compartment LS are provided at the lower end portion of the operation body 52 so as to protrude outward.

  An attachment block 57 is erected at the center of the lower side located on the left side of the operation body 52, and a lock movable body 58 is rotatably attached to this. The distal end of the lock movable body 58 is formed in a thin shape, and can be engaged with and disengaged from a lock fixing body 77 provided on a leg 7 described later. The lock movable body 58 is connected to the other end of a spring member (not shown) having one end coupled to the operation body 52, and is biased to rotate clockwise in FIG. A locking piece 58a protrudes from the lock movable body 58, and one end of the operation cable 59 is connected to this. The operation cable 59 is wound upward from the lower side of the operation body 52, and is connected to a release lever 60 attached to the left end of the handle 52a. By rotating the release lever 60, the lock movable body 58 is rotated counterclockwise in FIG. 4 against the urging force of the spring member via the operation cable 59.

  The leg portion 7 is formed by bending a highly rigid metal pipe material, and has a pair of left and right front legs 71 whose upper end portions are rotatably connected to the front end of the loading portion 5. A front beam 72 is provided between the two and couples them together (shown in FIG. 1). A pair of left and right rear legs 73 formed in an L shape with a pipe material similar to that of the front legs 71 is connected to a substantially intermediate position in the vertical direction of the front legs 71 so as to be rotatable at the front ends thereof. A rear beam 74 is connected between the legs 73. Casters 75 (corresponding to wheels of the present invention) are rotatably attached to the lower ends of the front legs 71 and the rear legs 73, respectively. The caster 75 is rotatable in the horizontal direction with respect to the front leg 71 or the rear leg 73, so that the traveling direction of the cart 1 can be easily changed. Further, a pair of left and right support links 76 are provided between the upper side of the support body 51 of the loading unit 5 and the rear leg 73, and these are rotatably connected to the support body 51 and the rear leg 73 at both ends thereof. ing. As a result, the leg portion 7 can change between an upright state (shown in FIG. 4) in which the cart 1 can travel and a retracted state (shown in FIG. 7) that is folded and reduced in size in the vertical direction. ing.

  A lock fixing body 77 formed of a metal material in a flat plate shape is fixed to the upper end portion of the support link 76 located on the left side of the cart 1. On the outer surface of the lock fixing body 77, a plurality of recesses 77a (corresponding to the engagement portion of the present invention) that engage with the above-described lock movable body 58 are formed so as to protrude. As shown in FIG. 4, the lock movable body 58 is brought into an upright state by engaging with the lowermost one of the plurality of recesses 77a and engaged with the other recesses 77a. The leg portion 7 is between the retracted state and the standing state, and the loading portion 5 is supported from below, and the cart 1 can be in an intermediate state.

  As shown in FIG. 4, the plurality of recesses 77a are formed in a sawtooth shape, and the slope of the lower slope forming the recess 77a is gentler than the slope of the upper slope. Accordingly, when the leg 7 changes from the retracted state to the standing state, the lock movable body 58 moves over the recess 77a while rotating against the urging force of the spring member, so that the lock fixing body 77 in FIG. The lock movable body 58 and the recessed portion 77a constitute a so-called one-way latch mechanism.

  Next, a method for loading the cart 1 into the cargo compartment LS of the vehicle AM and a method for unloading from the cargo compartment LS will be described with reference to FIGS. When the cart 1 is loaded into the luggage compartment LS of the vehicle AM, as shown in FIG. 3, the handle 52a of the cart 1 is manually pushed to approach the cargo compartment LS from the rear, and the left and right guide rollers 55 of the cart 1 are moved to the cargo compartment. The pair of guide rails 9 fixed to the floor surface of the LS are engaged with each other in the width direction (shown in FIG. 4). Each guide rail 9 extends in the front-rear direction of the cargo space LS, and a lower guide surface 91 is integrally formed at each lower end portion so as to face each other. The guide rollers 55 enter the respective guide rails 9 so as to be placed on the lower guide surface 91 while rotating.

  Next, when the release lever 60 is rotated forward, the lock movable body 58 rotates counterclockwise in FIG. 4 against the urging force of the spring member via the operation cable 59, and the lock fixing body 77. Is disengaged. Accordingly, the support link 76 of the leg portion 7 can be rotated together with the lock fixing body 77, and when the cart 1 is pushed into the cargo compartment LS as it is, the front leg 71 is pressed against the rear end portion of the cargo compartment LS. It begins to turn counterclockwise (rearward) together with 76 (shown in FIG. 5). When the cart 1 is further pushed along the guide rail 9 into the luggage compartment LS, the cart 1 moves further into the cargo compartment LS while the rotation of the front legs 71 and the support links 76 progresses to near horizontal. Enter. At this time, the guide roller 55 of the cart 1 is restrained in the vertical direction between the upper guide surface 92 formed at the upper end portion in front of the guide rail 9 and the lower guide surface 91 described above (see FIG. 6). ).

  In addition, the pair of engaging portions 56 of the cart 1 enters a slit 93 provided at the rear end portion of each guide rail 9, thereby projecting outward in the left-right direction of the guide rail 9. At the rear end of each guide rail 9, an engagement piece 94 is rotatably attached to the outside of each slit 93, and an elastic member 94 a is interposed between the engagement piece 94 and the guide rail 9. By being interposed, the engagement piece 94 always receives a biasing force in the clockwise rotation direction in FIG. As shown in FIG. 6, when the engaging portion 56 of the cart 1 enters the guide rail 9, it abuts against the engaging piece 94 to rotate it counterclockwise against the urging force of the elastic member. Move.

  Thereafter, when the cart 1 further advances into the luggage compartment LS, the engagement piece 94 gets over the engagement portion 56 and rotates clockwise in FIG. 6 by the urging force of the elastic member, and at the notch 94b. It engages with the engaging portion 56 (shown in FIG. 7). Thereby, the cart 1 is fixed in the front-rear direction, and loading into the vehicle AM is completed.

  When loading / unloading the cart 1 from the vehicle AM, the transporting operator manually rotates the engaging piece 94 of the guide rail 9 counterclockwise from the state shown in FIG. While releasing, the cart 1 is pulled out rearward of the luggage compartment LS along the guide rail 9. When the cart 1 is pulled out of the cargo space LS, the front leg 71 rotates clockwise (forward) by its own weight, so that the support link 76 connected thereto starts to rotate in the same direction together with the lock fixing body 77. At this time, the lock movable body 58 can get over the recess 77 a of the lock fixing body 77, so that there is no hindrance to the rotation of the lock fixing body 77. By further pulling out the cart 1 from the cargo space LS, when the front leg 71 is sufficiently rotated and the casters 75 of the front leg 71 and the rear leg 73 land, the lock movable body 58 is engaged with the recess 77a of the lock fixing body 77. Then, it is fixed again in the standing state.

  When the height of the cargo compartment LS with respect to the ground is not sufficient, when the casters 75 of the front legs 71 and the rear legs 73 have landed, the recess 77a that is in a position that can engage with the lock movable body 58 is the lock movable body. 5, the leg portion 7 can be fixed in an intermediate state in which the cart 1 can travel even before reaching the standing state in the state shown in FIG. 5. Moreover, it is also possible to raise the leg part 7 by lifting the loading part 5 of the cart 1 with the leg part 7 fixed to the intermediate state and moving the caster 75 away from the ground. When the cart 1 is lifted and the leg portion 7 is in a suspended state, the upper end portion of the lock fixing body 77 abuts on the upper side of the support body 51 from below so that the downward extension of the leg portion 7 is restricted. .

  Next, based on FIG. 8 thru | or FIG. 16, the structure of the container 3 and the attachment method to the loading part 5 are explained in full detail. Mounting brackets 32 are fixed to the four corners of the lower surface of the frame 31 of the container 3 (shown in FIG. 10). The mounting bracket 32 is formed of a metal plate, and has a bent portion 32a at an end portion. The bent portion 32a comes into contact with the frame 31 to be positioned with respect to the frame 31, and is fixed by welding or the like. . A storage hole 32b passes through the central portion of the mounting bracket 32, and a pair of mounting holes 32c are provided in the periphery thereof (shown in FIGS. 8 and 9).

  Below the pair of mounting brackets 32 that are located diagonally to each other, the slide lever 33 is mounted so as to contact the lower surface of the mounting bracket 32. The slide lever 33 is formed of a flexible metal plate or a spring plate material, and is formed in a long shape so as to extend from below the mounting bracket 32 when attached to the frame 31. The slide lever 33 is provided with a through hole 33a so as to coincide with the storage hole 32b of the mounting bracket 32, and has a pair of mounting holes 33b in the periphery thereof so as to coincide with the mounting hole 32c of the mounting bracket 32. is doing.

  A hook-like protrusion 33c protrudes downward from the peripheral edge of the slide lever 33, and has a vertical wall 33c1 extending downward from the peripheral edge and a protrusion 33c2 protruding inward in the horizontal direction from the tip. is doing. The portion of the slide lever 33 that extends to the opposite side of the through hole 33a is bent in the vertical direction, and then its tip is wound in a curl shape to form an operation portion 33d. The slide lever 33 can be bent upward by pressing the operation portion 33d. Further, an end locking portion 33e is cut and raised downward between the through hole 33a and the operation portion 33d.

  Further, a roller holder 34 is attached to the lower surface of the slide lever 33. The roller holder 34 has a holding portion 34a formed of a stainless material in a bowl shape that is upside down and a ball 34b that is held in a rollable manner. A flange portion 34a1 formed on the peripheral edge of the holding portion 34a has a pair of mounting holes 34a2 so as to coincide with the mounting holes 32c of the mounting bracket 32 described above. A ball 34b formed of a synthetic resin material protrudes below the holding portion 34a and can be locked on the guide rail 54 of the loading portion 5 described above. As shown in FIG. 9, the slide plate 33 and the roller holder 34 are stacked below the mounting bracket 32 fixed to the frame 31, and then mounting screws 35 are inserted into the respective mounting holes 34 a 2, 33 b, 32 c, It is fixed to the lower surface of the frame 31 by screwing a nut (not shown) from above.

  Of the mounting brackets 32 fixed to the four corners of the lower surface of the frame 31, except for the two diagonal positions where the slide lever 33 is attached, the operation portion 33d and the end locking portion are configured from the configuration of the slide lever 33. A metal plate 36 (having hook-like protrusions 33c), which is provided with a portion 33e, is attached to the lower surface thereof, and the roller holder 34 described above is attached to the lower side thereof (FIG. 10). Shown).

  On the other hand, as described above, the guide rails 54 fixed to the upper side of the support body 51 each have a length equal to or longer than the longitudinal direction of the container 3, and the cross-sectional shape of the guide rail 54 is bent substantially downward at the center. A recess capable of receiving the ball 34b of the roller holder 34 described above is provided. As shown in FIG. 10, projecting pieces 54a are provided so as to project sideways at two locations on the side surface of each guide rail 54, and these are the keys provided on the container 3 as described above. It is formed at an interval that coincides with the projection 33c.

  With the above-described configuration, the ball 34b provided on the container 3 can roll on the guide rail 54, and the container 3 is laterally viewed from the handle 52a side while being guided by the guide rail 54 on the loading unit 5. It can be moved to slide. As shown in FIGS. 10, 12, and 15, when the container 3 is in the mounting position on the loading part 5, the hook-like protrusions 33 c provided at the four corners of the container 3 are the protruding pieces of the guide rail 54. 54a.

  In this state, the projecting piece 33c2 extending to the side of the hook-shaped projection 33c can be locked with the projecting piece 54a in the vertical direction, and restricts the upward movement of the container 3 from the loading portion 5. Further, the vertical wall 33c1 extending up and down of the hook-shaped protrusion 33c can be locked in a direction crossing the protruding piece 54a and the guide rail 54, and restricts the movement of the cart 1 in the front-rear direction with respect to the loading portion 5 of the container 3. ing. Further, in this state, the pair of slide levers 33 protrude in the opposite directions from the longitudinal end portions 54 b of the guide rail 54, and both end locking portions 33 e are the longitudinal end portions of the one guide rail 54. 54b is in contact with the lengthwise end 54b of the other guide rail 54 located on the opposite side in the length direction, and restricts movement of the container 3 in the sliding direction relative to the loading portion 5.

  When the operation portion 33d of any one of the slide plates 33 provided in the container 3 is pulled upward, the slide plate 33 is bent and the end portion locking portion 33e and the lengthwise end portion 54b of the guide rail 54 are locked. Is released. Thereby, the container 3 can be slid with respect to the loading part 5 toward the slide plate 33 which is not operated (shown in FIGS. 11 and 13). Since the container 3 moves in one direction (leftward in FIG. 10) with respect to the loading unit 5, the position of the hook-shaped protrusion 33 c of the container 3 with respect to the protruding piece 54 a of the guide rail 54 is also shifted. Can be removed from the loading unit 5 (shown in FIGS. 14 and 16). Therefore, the container 3 can be removed while sliding on the loading unit 5.

  When the container 3 is attached to the loading section 5 again, the guide rail is arranged such that the hook-shaped projection 33c of the container 3 is shifted from the protruding piece 54a of the guide rail 54 as shown in FIG. 54, the ball 34b of the container 3 is placed. Thereafter, the container 3 is slid laterally (to the right in FIG. 11) toward the center of the loading unit 5, so that the hook-shaped protrusion 33 c of the container 3 coincides with the protruding piece 54 a of the guide rail 54. Move to. When the container 3 slides on the loading unit 5, the one-side slide lever 33 (located at the lower right in FIG. 11) bends upward, and the end locking portion 33 e abuts on the guide rail 54. When the container 3 moves to the center of the loading unit 5, the slide lever 33 returns to its lower shape, and the end locking portion 33 e locks with the longitudinal end 54 b of the guide rail 54. Thereby, the attachment to the loading part 5 of the container 3 is completed. Therefore, the container 3 can be attached while sliding on the loading unit 5.

  According to the present embodiment, the leg portion 7 is configured so as to support the loading portion 5 from below and to be fixed to an intermediate state in which the leg portion 7 can run while changing from the retracted state to the standing state. When the leg is changed from the retracted state to the standing state, the leg portion 7 is fixed in the intermediate state and can run even if the leg portion 7 does not stand up sufficiently. The lock fixing body 77 is provided with a plurality of recesses 77a for engaging the lock movable body 58 with one of them to fix the leg portion 7 in an upright state or an intermediate state. When moving from the retracted state to the standing state, the lock movable body 58 is configured to be able to get over the recessed portion 77a, so that the leg portion 7 that is fixed from the retracted state and temporarily fixed to the intermediate state is The cart 1 can be further changed by lifting and fixed in an upright state.

Second Embodiment
Next, based on FIG. 17, a leg retractable cart 1A according to a second embodiment of the present invention will be described focusing on differences from the first embodiment. In the present embodiment, the lock fixing body 78 is fixed to the upper end portion of the front leg 71, and a plurality of recesses 78a are formed in the same manner as in the first embodiment. On the other hand, the lock movable body 61 is rotatably attached to the front end portion of the support body 51, and similarly to the first embodiment, the lock movable body 61 is a spring member (not shown) having one end connected to the support body 51. The other end is connected and urged to rotate clockwise in FIG. One end portion of the lock movable body 61 can be engaged with the concave portion 78a of the lock fixing body 78, and an abutting portion 61a extends on the opposite side of the rotation center. The cart 1A in this embodiment is not provided with the release lever 60 and the operation cable 59.

  When the cart 1A in this embodiment is loaded on the vehicle AM, the handle 52a of the loading unit 5A is manually pushed to bring the cart 1A closer to the vehicle AM, and the contact portion 61a of the lock movable body 61 is in the traveling direction of the cart 1A. Press against the rear end of the AM. Thus, the lock movable body 61 is rotated counterclockwise in FIG. 17 against the urging force of the spring member, and the engagement with the lock fixing body 78 is released. Since other configurations and operation methods are the same as those in the first embodiment, the description thereof is omitted.

  According to the present embodiment, the lock movable body 61 is formed with the contact portion 61a that contacts the rear end portion of the vehicle AM in the traveling direction during traveling, and the contact portion 61a contacts the rear end portion of the vehicle AM. Since the lock movable body 61 is rotated by contact and the engagement state with the lock fixed body 78 is released, the carrier does not have to rotate the lock movable body 61 directly by hand or the like. The leg 7A can be changed to the retracted state by rotating the lock movable body 61 only by the running operation of the cart 1A.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention. Various modifications can be made without departing from the scope of the invention.
(1) A lock movable body may be provided on the leg portion, and a lock fixed body may be formed on the loading portion.
(2) A plurality of recesses may be formed in the lock movable body.
(3) A pair of lock fixed bodies and lock movable bodies may be provided on the left and right sides of the cart.
(4) There may be any number of positions where the intermediate state of the leg can be taken.
(5) The direction in which the legs are folded may be not only the front-rear direction of the cart, but also the lateral direction or other directions.
(6) A one-way bearing or the like may be used for the lock movable body and the lock fixing body, and the leg portion may be fixed steplessly while rotating from the retracted state to the standing state.
(7) In the first embodiment, the release lever for rotating the lock movable body may be provided in any part of the loading unit.
(8) The present invention can be applied to a handcart other than a cart such as a stroller.
(9) The lock movable body 61 may be rotated by contacting the other portion of the vehicle without contacting the contact portion 61a with the rear end portion of the vehicle AM.
(10) As a means for bringing the cart 1 to the intermediate state, it is not always necessary to adopt an engagement structure by the lock fixed body and the lock movable body, and the lock mechanism is operated only in one direction with a known release mechanism. Such a structure may be interposed between the upper end portion of the support link 76 and the loading portion.

1 is an overall perspective view of a cart according to a first embodiment. It is a perspective view showing the place which removed the container from the loading part of the cart shown in FIG. It is a perspective view showing the state before loading a cart in the luggage compartment of a vehicle. It is a side view showing the place which mounted the guide roller of the cart on the guide rail of a vehicle. It is a side view showing the place which started the folding of the leg part of a cart by operating a cancellation | release lever. It is a side view showing the place which put the cart into the luggage compartment of a vehicle with the leg part stored. It is a side view showing the place which locked the engaging piece of the vehicle to the engaging part of the cart, and fixed the cart to the luggage compartment of the vehicle. It is sectional drawing of the attachment site | part of the roller holding body of the lower surface of a container. FIG. 9 is an exploded perspective view of FIG. 8. It is a bottom view of a container when a container is attached to a loading part. It is a bottom view of a container when moving a container to the position which can be removed from a loading part. It is a side view of FIG. It is a side view of FIG. It is a side view when a container is removed from a loading part. It is a side view of the whole cart when a container is attached to a loading part. It is a side view of the whole cart when a container is removed from a loading part. It is a side view of the cart by 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1A ... Cart 3 ... Container 5 ... Loading part 7 ... Leg part 58, 61 ... Lock movable body 61a ... Contact part 75 ... Caster 77, 78 ... Lock fixed body 77a, 78a ... Recessed part

Claims (4)

It is provided with a loading part for placing a load, and a leg part having a wheel at the lower end part and supporting the above mentioned coin part from below, and a standing state in which the leg part can run and a vertical direction by being folded. In a leg retractable wheelbarrow that can be switched to a retracted state with a reduced size,
The leg retractable manual push, wherein the leg is fixed to at least one intermediate state that supports and supports the above-mentioned coin part from below while changing from the retracted state to the standing state. car. The lock fixing body is fixed to one side of the coin portion and the leg portion, and when engaged with the lock fixing body on the other side, the leg portion is fixed to be able to run, and the engagement is released. Sometimes a lock movable body is provided that allows the leg to change to the retracted state,
2. The leg retractable handcart according to claim 1, wherein at least one of the lock fixed body and the lock movable body is provided with an engagement portion capable of changing an engagement position of each other. A plurality of engagement locations are set in the engagement portion, and the change of the engagement location is allowed in the direction in which the leg portion moves from the retracted state to the standing state, and in the reverse direction, 3. The leg retractable handcart according to claim 2, wherein a detent mechanism for restricting the change to be released is set. A storage structure for storing the leg retractable wheelbarrow according to claim 2 or 3 in a luggage compartment of a vehicle,
The lock movable body is formed with an abutting portion that abuts on a peripheral portion of the cargo compartment, and the abutting portion abuts on the peripheral portion, whereby the lock movable body is rotated and the lock fixed body and The retractable structure of the leg-retractable handcart is released from the engagement state.

Images