JP2017100481A - Carriage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate handling, and enable use for carrying not only tatami but also the other article.SOLUTION: In a carriage 11 which includes a base part 12 having wheels 17, and a standing part 13 pivoted on the lower end part to one side edge part 12a of the base part 12, it is possible to change an attitude of the standing part 13 between a falling attitude along the top face of the base part 12 and a standing attitude standing from the base part. The standing part 13 has a pair of support rods 31 along the side edge part 12a of the base part 12, and the upper end parts of leaning frame parts 35 are pivoted to the inside in the upper end part of the support rod 31. There are provided in a lateral rod 37 and the base part 12 in the bottom edge of the leaning frame part 35, an engagement structure 41 and an insertion shaft 42 which put the standing part 13 into a standing attitude, and hold the leaning frame part 35 in an inclination attitude inclining to the side of the one side edge part 12a toward the upper side.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a carriage for carrying an article, and more particularly to a carriage that is easy to handle and can carry unique articles such as tatami mats and can be used to move other articles.

  As a trolley | bogie used for tatami conveyance, there existed the thing of FIG. 23 disclosed by the following patent document 1 as a prior art. This cart has a structure including a loading platform having a lower wheel and an inclined mounting surface, and a triangular frame having lower ends pivotally attached to two opposite sides on the loading platform. In use, the two frame bodies are erected and a rod-shaped body is held between the upper ends thereof to maintain the erected state of the frame body. In this state, place one side of the lower end of the tatami on the loading surface of the loading platform and close the upper side of the tatami to the frame.

  However, when assembling, the two frames must be erected, which is cumbersome. Further, since the two frames are folded so as to be folded, the upper surface of the cart in the folded state is not flat and is difficult to use for transporting articles.

  The invention described in Patent Document 1 is a cart with a single support frame that stands up during use. The support frame of this cart holds the standing state with support arms on both the left and right sides, and is supported during assembly. It must be supported by two support arms while raising the frame. For this reason, although there is one support frame, the work is troublesome. In addition, since the support frame is one, the upper surface of the cart in the folded state is flat compared to the cart shown in FIG. 23 of Patent Document 1, but only the rear surface of the support frame (the upper surface when tilted) is on. Since it becomes a surface, the area that appears above is small.

Japanese Patent Application Laid-Open No. 11-78902

  Therefore, the main object of the present invention is to be easy to handle and to be used not only for tatami mats but also for other transportation.

  Means therefor is a carriage including a base portion having wheels and an upright portion having a lower end pivotally attached to one side edge of the base portion, wherein the upright portion is an upper surface of the base portion. Can be changed between a lying posture and a standing posture raised from the base, and the standing portion has a pair of support rods along the one side edge of the base, and these The upper end portion of the leaning frame portion is pivotally attached to the inner side of the upper end portion of the support rod, and the upright portion is placed in an upright posture on the horizontal rod at the lower end of the leaning frame portion and the base portion. In addition, the carriage is provided with a fixing device that holds the leaning frame portion in an inclined posture in which the one side edge portion is inclined toward the upper side.

  In this configuration, when the upright portion is raised from the base portion, the frame frame portion rises by relative rotation with the pair of support rods, and the horizontal frame at the lower end of the leaning frame portion is raised. Move on the base in the direction away from the one side edge. The recumbent frame is held by the fixing device and leans so that the frame portion is inclined. When the standing part is laid down and folded, the upper surface of the standing part in the lying posture and the upper surface of the leaning frame part lying on the inside of the standing part are present at positions close to each other.

  According to the present invention, the operation of setting the leaning frame portion to the inclined posture is a series of operations with the standing portion being raised, and the need for simultaneous operation of a plurality of parts can be eliminated, so that handling is easy. is there. In addition, since the upper surface of the standing frame portion and the leaning frame portion are close to each other in the folded state, the upper surface can be used to transport the article.

The perspective view of the unfolding state of a trolley | bogie. The front view of the use condition of a trolley | bogie. FIG. The top view of a base part. FIG. FIG. The top view of the folded state of a trolley | bogie.

An embodiment for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 shows a perspective view of the assembled state of the carriage 11. The carriage 11 is mainly used for transporting tatami mats, and can be placed in a state where a plurality of tatami mats X are leaned as shown in FIG. In the folded state, as shown in FIG. 3, the carriage 11 can also be used for transporting articles other than tatami mats by placing a separate plate material Y on the upper surface.

  The carriage 11 has a base part 12 and an upright part 13. The base portion 12 has a rectangular frame shape in plan view, and is formed of a square pipe. Both corners 15 of the one side edge portion 12a of the base portion 12 form a right angle, but both corners 16 on the opposite side to the one side edge portion 12a have a corner radius.

  A wheel 17 is provided below the base portion 12. The wheels 17 are provided directly on the main wheels 17a provided at both ends of the axle 19 extending in the direction orthogonal to the longitudinal direction of the one side edge 12a and on the lower surfaces of both sides in the longitudinal direction of the one side edge 12a. This is the slave wheel 17b. One main wheel 17a is provided on each of the left and right sides, and the sub wheel 17b is formed of casters, and two on each of the front and rear sides. 2 and 3, the lower end position of the sub wheels 17b is slightly higher than the lower end position of the main wheel 17a, in other words, the height of each wheel 17 so that the sub wheels 17b are slightly lifted. Is set.

  FIG. 4 is a plan view of the base portion 12. As shown in this figure, the base 12 is provided with a receiving rod 21 made of a square pipe at one side from the intermediate position in the left-right direction in which the axle 19 extends, that is, at the position where the one side edge 12a approaches the side, A connecting rod 22 is provided in an orthogonal state on the surface of the receiving rod 21 opposite to the one side edge portion 12a at an intermediate position in the longitudinal direction. The upper surfaces of the receiving rod 21 and the connecting rod 22 are flush with the upper surface of the base 12. The axle 19 to which the main wheel 17 a described above is attached is fixed at a position corresponding to the connecting rod 22 on the lower surface of the square pipe constituting the base portion 12.

  A brake bar 23 is also provided below the base 12 in parallel with the axle 19. The brake bar 23 has a length in contact with a pair of spaced apart main wheels 17 a, two left and right pivot shafts 24 provided on the base portion 12, and arms 25 and 26 integrated with the pivot shafts 24. It is attached to the base. One of the two arms 25, 26, that is, the arm 25 provided with the one side edge portion 12a is extended with an operation portion 25a for rotating the arm 25 for ON / OFF switching of the brake. ing. In the figure, reference numeral 27 denotes a spring for urging to give moderation. As shown by the phantom lines in FIGS. 5 and 6, the brake bar 23 hits the main wheel 17a at both ends, and restricts the rotation of the main wheel 17a.

  Further, a stopper 28 that protrudes upward from the upper surface of the base portion 12 is formed on the outer surface of the base portion 12 opposite to the aforementioned one side edge portion 12a. The stopper 28 has a round pipe formed in a gate shape, is set to a size that does not interfere with the main wheel 17a, and is fixed so as to surround the upper portion of the main wheel 17a as shown in FIGS. .

  The upright portion 13 is pivotally attached to the base portion 12. As shown in FIGS. 1, 2, and 3, the pivot is made on the upper surface of one side edge 12 a of the base 12, and a hinge 29 is used. The standing portion 13 can be changed between a lying posture along the upper surface of the base portion 12 and a standing posture that has risen from the base portion 12. In this example, the standing posture is not a posture standing upright with respect to the base portion 12, but is standing at an angle slightly smaller than a right angle, and as shown in FIGS. It leans to the state.

  As shown in FIG. 1, the upright portion 13 has support rods 31 that form a pair along one side edge 12 a of the base 12, and the lower ends of these support rods 31 are connected to the base portion 12 via the hinges 29. It is pivotally attached to the upper surface. The pivot position of the support rod 31 is both ends in the longitudinal direction of the one side edge portion 12a. The pair of support rods 31 are integrally formed with upper ends connected by a connection rod 32. The connecting rod 32 is formed on the surface which becomes the back surface in the raised posture of the support rod 31 and the upper surface in the tilted posture. The surface of the support rod 31 that forms the connection rod 32 and the connection rod 32 can be flush with each other so that the connection rod 32 does not protrude.

  The upper end portion of the leaning frame portion 35 is pivotally attached to the upper end portion of the upright portion 13, that is, inside the upper end portions of the pair of support rods 31. The leaning frame portion 35 includes a pair of vertical rods 36 that can be parallel to the support rod 31, a horizontal rod 37 that connects and integrates the lower ends of the vertical rods 36, and the horizontal rod 37 that is parallel to the vertical rod 36. It is a substantially rectangular frame shape having an auxiliary connecting rod 38 for connecting the upper portions.

  The lateral frame 37 and the base portion 12 at the lower end of the leaning frame portion 35 have the standing portion 13 in the standing posture, and the one side edge portion 12a is inclined toward the upper portion of the leaning frame portion 35 upward. A fixing device that holds the tilted posture is provided. A part of the structure for holding the leaning frame portion 35 in the inclined posture is the receiving rod 21 of the base portion 12 described above. That is, the receiving rod 21 is provided at a position where the upright portion 13 and the leaning frame portion 35 are inclined to support each other.

  The fixing device includes a locking structure 41 that locks to the base portion 12, that is, the receiving rod 37 when the horizontal rod 37 of the leaning frame portion 35 is moved from the side edge 12 a, and the horizontal rod 37. It has the insertion shaft part 42 inserted with respect to the receiving rod 21. FIG.

  As shown in FIG. 2, the locking structure 41 is configured so that one side edge portion 12 a of the receiving bowl 21 is positioned on one side of the receiving bowl 21 when the lateral wall 37 a and the horizontal basket 37 are placed on the receiving bowl 21. The edge part 12a is comprised by the hanging piece 41b hung in the position corresponding to the side surface of a wrinkle. A plurality of the hanging pieces 41b may be equally arranged in the longitudinal direction of the horizontal rod 37. When the hanging piece 41b abuts on the side surface 41b of the receiving rod 21 and the horizontal rod 37 rests on the receiving rod 21, the positional relationship between them becomes constant. The movement away from the portion 12a is prevented.

  The insertion shaft portion 42 is held at an intermediate position in the longitudinal direction of the recumbent rod 37, the upper surface of the recumbent rod 37 in an inclined posture exposes the head, and the distal end of the insertion shaft portion 42 extends from the lower surface of the recumbent rod 37. It is biased in the protruding direction. As shown in FIGS. 4 and 7, the insertion hole 43 into which the insertion shaft portion 42 is inserted is formed at an intermediate position in the longitudinal direction of the receiving rod 21.

  Further, as shown in FIG. 7, the upright portion 13 and the leaning frame portion 35 are placed in a lying posture and the leaning frame portion 35 is placed inside the upright portion 13. The upper surface height of the leaning frame portion 35 is configured to be the same as or substantially the same as the upper surface of the upright portion 13. Specifically, the thickness of the support frame 31 constituting the upright portion 13 and the leaning frame portion 35 are set to be the same or substantially the same, and the pivot shaft 39 (see FIG. 1 (see one-dot chain line in FIG. 7) is provided at an intermediate position in the thickness direction. The height of the upper surface of the leaning frame portion 35 may be the same as or substantially the same as the upper surface of the upright portion 13 in other configurations. As described above, when the connecting rod 32 is flush with the surface of the support rod 31 that forms the connecting rod 32, a space for preventing interference with the connecting rod 32 is provided on the back side (upper surface side) of the supporting rod 31. It is good to form.

  The standing portion 13 and the base portion 12 are formed with a folding fixing structure 45 that holds the lying posture of the standing portion 13. One of the folding fixing structures 45 is a fixing shaft 45a urged in a protruding direction, and is a back surface of the connecting rod 32 of the upright portion 13, and is a surface that becomes an upper surface in a lying posture as shown in FIG. Is formed at a position facing the stopper 28 of the base 12. The other of the folding fixing structure 45 is a fixing hole 45b formed at a position facing the fixing shaft 45a in the stopper 28. The fixing hole 45b is formed in the maximum diameter portion of the round pipe. In this folding and fixing structure 45, when the upright portion 13 is in the lying posture, the fixed shaft 45a hits the curved surface of the stopper 28 and is pushed in against the urging force, and the fixed shaft 45a is lowered to the position corresponding to the fixing hole 45b. It protrudes by the urging force and enters the fixing hole 45b.

  Extending members 46 that can be protruded and retracted in the longitudinal direction of the vertical rod 36 are inserted and held in the two vertical rods 36 constituting the leaning frame portion 35. As shown in FIG. 1 (see the phantom line) and FIG. 2, the extension member 46 supports the tatami mat X that can be pulled out and used as necessary.

  The holder 47 that holds the extended state and the retracted state of the extending member 46 is formed on the same axis as the pivot shaft 39 of the support rod 31 of the upright portion 13 and the vertical rod 36 of the leaning frame portion 35. . The holder 47 has a shaft shape urged toward the extension member 46 and is inserted into a holding hole 48 (see a virtual line in FIG. 1) formed at a necessary portion of the extension member 46 on the distal end side.

  A protrusion 49 protruding above the upper end surface of the support rod 31 is formed at the upper end of the support rod 31 constituting the upright portion 13. The protrusion 49 is used when the tatami X is stacked with a band or the like (not shown) when the tatami X is stacked.

When carrying the tatami mat X with the cart 11 configured as described above, it is used as follows.
First, the cart 11 in a folded state as shown in FIG. 5 is developed. The unfolding is performed by pulling up the upper portion of the frame portion 35 while leaning against the upright portion 13 on the opposite side of the one side edge portion 12a of the base portion 12 while pulling the fixing shaft 45a of the folding fixing structure 45, and then lowering the one end. The horizontal rod 37 at the lower end of the leaning frame portion 35 that rotates in the direction away from the side edge portion 12 a is fixed to the receiving rod 21 of the base portion 12. The drooping piece 41b of the horizontal rod 37 abuts on the side surface 41a of the receiving rod 21 with the rotation, so that the horizontal rod 37 is placed on the vertical rod 21 in this state. Since the horizontal shaft 37 on the receiving rod 21 has the insertion shaft portion 42, when the insertion shaft portion 42 is inserted into the insertion hole 43 of the flange 21, the fixed state by the fixing device is maintained.

  In this way, a fixed posture is automatically obtained by a series of operations accompanying the operation that causes the upright portion 13, and the fixed posture is held by one insertion shaft portion 42, so that the deployment can be performed very easily. Moreover, since the fixing device has the insertion shaft portion 42 in addition to the locking structure 41 constituted by the hanging piece 41b, the fixed state is firmly held.

  Thereafter, the extension member 46 of the leaning frame portion 35 is extended as necessary. Since the holding tool 48 that holds the protruding state of the extending member 46 is formed on the same axis as the pivoting shaft 39 of the frame part 35 that is close to the upright part 13, the holding tool 48 is provided separately. In addition, the structure can be simplified, and the operability can be improved by eliminating the parts that are unexpectedly caught during the folding and unfolding operations.

  Next, as shown in FIG. 2, the tatami mat X is placed on the base portion 12 and leaned against the frame portion 35. A plurality of tatami mats X can be placed, and the lower end of the tatami mat X on the carriage 11 is regulated by the stopper 28, so that a stable placement state is obtained.

  If the tatami mat X or the carriage 11 is pushed, the wheel 17 provided under the base part 12 can be freely moved in any direction.

  When the carriage 11 is folded, the insertion shaft part 42 is removed from the receiving rod 21 and the leaning frame part 35 is slightly lifted, and the standing frame 13 and the leaning frame part 35 are placed in a lying posture. Since the folding fixing structure 45 as described above is provided, when the upright portion 13 is tilted, the fixing shaft 45a automatically enters the fixing hole 45b and the folded state is maintained.

  When the trolley 11 in the folded state is not used, it is stored and managed as it is. However, if there is an article that needs to be moved when the tatami X is installed or removed, an appropriate plate Y is used as shown in FIG. In this case, the mounting surface Ya on which the article is placed can be formed. The upper surface of the cart 11 in the folded state is composed of the upright portion 13 and the leaning frame portion 35, and these are close to each other, so that the upper surface is wide and stable compared to the case where the upper surface is constituted by only one frame material. It becomes a surface. For this reason, the stability of the plate Y is good. In addition, since the folding fixing structure 45 is provided, the folded state is stable and suitable for transporting articles.

  Thus, since it can be used not only for the tatami mat X but also for transporting other articles, it is possible to smoothly perform other operations associated with the transport of the tatami mat X. Become.

  The above configuration is one configuration for carrying out the present invention, and the present invention is not limited to the above-described configuration, and other configurations can be adopted.

  For example, only one of the locking structure 41 and the insertion shaft portion 42 that are a part of the fixing device may be used, and other structures may be added or the fixing device may be configured with other structures.

DESCRIPTION OF SYMBOLS 11 ... Carriage 12 ... Base part 12a ... One side edge part 13 ... Standing part 17 ... Wheel 21 ... Receiving rod 31 ... Supporting rod 35 ... Leaning frame portion 36 ... Vertical shaft 37 ... Recumbent 39 ... Pivoting shaft DESCRIPTION OF SYMBOLS 41 ... Locking structure 41a ... Side surface 41b ... Dripping piece 42 ... Insertion shaft part 45 ... Folding fixing structure 45a ... Fixed shaft 45b ... Fixing hole 46 ... Elongation member 47 ... Holder

Claims (6)

A carriage having a base portion having wheels, and a standing portion having a lower end pivotally attached to one side edge portion of the base portion,
The standing portion can be changed to a lying posture along the upper surface of the base portion and a standing posture raised from the base portion,
The upright portion has a support rod which makes a pair along the one side edge portion of the base portion,
Inside the upper end of these support rods, the upper end of the leaning frame is pivotally attached,
An inclined posture in which the upright portion of the side frame at the lower end of the leaning frame portion and the base portion are in a standing posture and the one side edge portion is inclined toward the upper side of the leaning frame portion. A trolley equipped with a fixing device to hold it. When the upright portion is in the lying posture and the leaning frame portion is stored inside the upright portion, the upper surface height of the leaning frame portion is the same as or substantially the same as the upper surface of the upright portion. The carriage according to claim 1. 3. The locking device according to claim 1, wherein the fixing device has a locking structure for locking to the base portion when the lateral edge of the side frame portion is moved from the side of the leaning frame portion. Trolley. In each of the pair of vertical hooks constituting the leaning frame portion, an extending member that can freely protrude and retract in the longitudinal direction of the vertical hook is inserted and held,
The holder for holding the protruding state of the extending member is formed on the same axis as the pivot shaft of the upright portion and the leaning frame portion. Trolley. The cart according to claim 3 or 4, wherein the fixing device includes an insertion shaft portion that is inserted into the base portion from the reed in addition to the locking structure. The trolley | bogie as described in any one of Claims 1-5 in which the foldable fixing structure holding the lying posture of the said standing part was formed in the said standing part and the said base part.

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