JP3221441U - Folding carriage - Google Patents

Abstract

An object of the present invention is to provide a folding carriage which has a small storage space and is easy to carry. A folding carriage (42) is attached to a base (44), a plurality of aggregates (46) attached to the base, a plurality of wheels (8) attached to each of the aggregates, and each aggregate, and a load is loaded A plurality of top plates 48 to be placed are provided. Each aggregate has a proximal end 46a attached to the base so that the distal end 46b can be pivoted. The aggregate is pivotable at its tip to change its posture between a use posture in which the tips are separated from each other and a folding posture in which the tips are close to each other. The wheels can be grounded in the use position. [Selected figure] Figure 5

Description

  The present invention relates to a folding carriage.

  Patent Document 1 (Japanese Utility Model Application Laid-Open No. 5-49558) discloses a folding carriage. In this folding carriage, a rectangular base plate is foldable. Thus, the cart can be folded into a rectangular tube when not in use.

Japanese Utility Model Application Publication No. 5-49558

  The truck of Patent Document 1 (Japanese Utility Model Laid-Open Publication No. 5-49558) is less bulky than a conventional truck. The storage space of this dolly is smaller than that of a conventional dolly. However, as with this truck, just folding the base plate still requires a large storage space. In addition, this truck has the same weight as a conventional truck. Transporting this truck is not easy.

  The object of the present invention is to provide a folding carriage which has a small storage space and is easy to carry.

  The folding carriage according to the present invention comprises a base, a plurality of aggregates attached to the base, a plurality of wheels attached to each of the aggregates, and an aggregate on which the load is placed. It has a plurality of top plates. Each aggregate is attached at its proximal end to the base so that its distal end can be pivoted. In this folding carriage, the aggregate rotates the tip portion, and the posture can be changed between the use posture in which the tip portions are separated from each other and the folding posture in which the tip portions approach each other. The wheel can be grounded in the use position.

  Preferably, the width of the top plate is wider on the distal end side than on the proximal end side.

  Preferably, the top plate is formed of a non-slip material.

  Preferably, the top plate includes a top plate body and a non-slip sheet. The luggage is placed on the non-slip sheet attached to the top plate body.

  Preferably, the aggregate comprises the proximal end and a distal end movable in the longitudinal direction of the proximal end.

  In the folding carriage according to the present invention, a plurality of aggregates are rotatably attached to the base. The aggregate is changeable between a use position in which the tips are separated from each other and a folding position in which the tips are close to each other. This folding carriage is less bulky than a carriage with a square base plate. This folding carriage is lightweight compared to a carriage provided with a rectangular base plate. This folding carriage is easy to carry in the folding posture. This folding carriage is not bulky and easy to carry.

FIG. 1 is an external view of a folding carriage according to an embodiment of the present invention. FIG. 2 is a partially enlarged view in which the pivot axis of the folding carriage of FIG. 1 is shown together with a part of the aggregate. 3 (A) is a plan view of the base of the folding carriage of FIG. 1, and FIG. 3 (B) is a cross-sectional view of the base taken along line IIIB-IIIB of FIG. 3 (A); ) Is a bottom view of the base. FIG. 4 is a cross-sectional view showing the folding posture of the folding carriage of FIG. FIG. 5 is an external view of a folding carriage according to another embodiment of the present invention. 6 is a partial enlarged view of a portion of the aggregate of the folding carriage of FIG. 5; 7 (A) is a plan view of the base of the folding carriage of FIG. 5, and FIG. 7 (B) is a cross-sectional view of the base taken along line VIIB-VIIB of FIG. 7 (A). FIG. 8 is a sectional view showing the folding posture of the folding carriage of FIG. FIG. 9 (A) is an explanatory view showing the use condition of the aggregate of the folding carriage according to still another embodiment of the present invention, and FIG. 9 (B) is another use condition of the aggregate of this folding carriage Is an explanatory view shown.

  Hereinafter, the present invention will be described in detail based on preferred embodiments with reference to the drawings as appropriate.

  The folding carriage 2 shown in FIG. 1 includes a base 4, four aggregates 6, four casters 8 as wheels, a stopper 10 and a seat 12. FIG. 1 shows the use posture of the cart 2 for loading and carrying luggage. Arrow X in FIG. 1 represents forward and backward direction of the carriage 2, arrow Y represents leftward direction in the left and right direction, and arrow Z represents upward direction in the up and down direction.

  In the use posture shown in FIG. 1, the sheet 12 is spread flat. The sheet 12 has a rectangular planar shape. This sheet 12 is made of flexible cloth or vinyl. The sheet 12 is attached to the aggregate 6. The sheet 12 is supported by the aggregate 6. The proximal end 6 a of the aggregate 6 is attached to the base 4. The aggregate 6 extends from the base 4 towards the corners of the sheet 12. In the carriage 2, the tip 6b of the aggregate 6 is located at a corner of the sheet 12 which spreads in a planar manner.

  The caster 8 is attached to the aggregate 6. The caster 8 is attached to the tip 6b. The caster 8 comes in contact with the ground in the use posture shown in FIG. The caster 8 includes a support frame 14 and a tire 16 supported by the support frame 14. The support frame 14 is rotatable with the vertical direction as a rotation axis in this use posture. In plan view, the rotation axis of the support frame 14 is offset from the contact position of the tire 16. The tire 16 is rotatable with a direction orthogonal to the vertical direction as a rotation axis.

  As shown in FIG. 2, the carriage 2 further includes a pivot 18. The pivot shaft 18 is attached to the proximal end 6 a of the aggregate 6. The axis of the pivot shaft 18 extends parallel to the upper surface 6 c of the aggregate 6 supporting the sheet 12 in a planar manner. The proximal end 6 a of the aggregate 6 is attached to the base 4 via the pivot shaft 18. The aggregate 6 forms the frame of the truck 2. Examples of the material of the aggregate 6 include wood and metal. Moreover, as a material of the rotating shaft 18, wood and metal are exemplified.

  As shown in FIGS. 3 (a) to 3 (c), the base 4 is used as a base body 20, an aggregate groove 22, a shaft groove 24 as a rotating shaft holding portion, an inlay recess 26, and an attachment portion. Female screw 28 is provided.

  The base body 20 has a plate-like shape. Examples of the material of the base body 20 include wood and metal. Four aggregate grooves 22 are formed in the base body 20. Each aggregate groove 22 opens outward. The aggregate groove 22 extends from the upper surface 20 a to the lower surface 20 b of the base body 20. Four axial grooves 24 are formed in the base body 20. Each axial groove 24 opens in the upper surface 20a. The axial groove 24 extends orthogonal to the aggregate groove 22. The inlay recess 26 is formed at the center of the base body 20. The inlay recess 26 opens in the upper surface 20 a. A female screw 28 is formed on the bottom surface 26 a of the inlay recess 26. The female screw 28 penetrates from the bottom surface 26a to the lower surface 20b. The axis of the female screw 28 coincides with the axis of the inlay recess 26.

  FIG. 4 shows the folding posture of the carriage 2. In FIG. 2, the description of the sheet 12 is omitted. A cross section of the base 4 is shown in FIG. The tip portions 6b of the aggregate 6 are separated from each other in the use posture of FIG. 1, while the tip portions 6b are close to each other in this folded posture.

  The stopper 10 is provided with a head 30 as a stopper main body, an inlay convex portion 32 and an external thread 34 as a mounting portion. As shown in FIG. 4, the inlay convex portion 32 protrudes downward from the center of the lower surface 30 a of the head 30. A male screw 34 is formed downward from the lower surface 32 a of the inlay convex portion 32.

  As shown in FIG. 4, the inlay convex portion 32 of the stopper 10 is inserted into the inlay concave portion 26 of the base 4. The male screw 34 of the stopper 10 is screwed into the female screw 28 of the base 4. Thus, the stopper 10 is removably attached to the base 4. In the base 4 and the stopper 10, the upper surface 20a of the base main body 20 and the lower surface 30a of the head 30 are in contact with each other. Thereby, the opening of the axial groove 24 of the base 4 is closed by the head 30 of the stopper 10 on the upper surface 20 a.

  The proximal end 6 a of the aggregate 6 is located in the aggregate groove 22 of the base 4. Although not shown, the pivot shaft 18 is inserted into the axial groove 24. Thereby, the aggregate 6 is attached to the base 4 with the proximal end 6 a (pivot shaft 18) as the rotation center and the distal end 6 b made rotatable.

  In FIG. 4, the lower surface 6 d of the aggregate 6 is in contact with the bottom surface 22 a of the aggregate groove 22. As a result, the tip 6b of the aggregate 6 is prevented from rotating in the direction opposite to the rotating direction in which the folding posture is changed to the use posture. On the other hand, in the use posture of FIG. 1, the upper surface 6 c of the aggregate 6 is in contact with the lower surface 30 a of the head 30. As a result, the tip 6b of the aggregate 6 is prevented from rotating in the direction opposite to the rotating direction in which the use posture is changed to the folding posture. The carriage 2 can change its posture between the folded posture and the use posture shown in FIG.

  The carriage 2 includes a base 4 and an aggregate 6 rotatably attached to the base 4. The carriage 2 does not have a conventional rectangular base plate. The rod-like aggregate 6 forms a framework of the loading surface. Since the rectangular base plate is not provided, the dolly 2 in the folded posture can fit in a space-saving manner. The carriage 2 is lightweight and easy to transport in the folded position.

  Since the truck 2 is not bulky and lightweight, it is easy to be always equipped in a vehicle. The dolly 2 can be used when it is suddenly necessary to carry on the go. In addition, it is easy to always prepare as equipment of emergency evacuation area. This truck 2 can also be used when transportation is suddenly required at a disaster evacuation site.

  The carriage 2 includes the seat 12 in place of the conventional square base plate, but may not include the seat 12. If it is a load that can support the bottom with a plurality of aggregates 6 in the usage posture of the cart 2, the cart 2 can transport the load without using the seat 12.

  The carriage 2 includes a seat 12 attached to the aggregate 6. Tension acts on the sheet 12 spread in a planar manner between the adjacent aggregates 6. This trolley 2 can carry and carry bagged grains, flours, sand and the like on a sheet 12. Furthermore, in the carriage 2, the aggregate 6 extends from the base 4 to the end of the sheet 12 in the use posture. Thereby, tension can be applied to the whole of the sheet 12 spread in a planar manner. As a result, the carriage 2 can further easily carry bagged grains, flours, sand and the like.

  In the carriage 2, the aggregate 6 linearly extends from the proximal end 6 a toward the distal end 6 b. This further saves space in the folding posture. The carriage 2 is easy to carry in the folded position.

  In the base 4 of the carriage 2, the aggregate groove 22 extends through from the upper surface 20 a to the lower surface 20 b of the base body 20. The axial groove 24 extends orthogonal to the aggregate groove 22. The axial groove 24 opens in the upper surface 20 a of the base body 20. Thus, the proximal end 6a of the aggregate 6 can be inserted into the aggregate groove 22 from the upper surface 20a in a state where the pivot shaft 18 is integrated. The aggregate 6 can be pivoted downward with respect to the proximal end 6 a of the distal end 6 b. In the base body 20, the axial groove 24 is opened in the upper surface 20a of the base body 20, but may be opened in the lower surface 20b. Thereby, the base end 6a of the aggregate 6 may be insertable into the aggregate groove 22 from the lower surface 20b.

  The lower surface 30 a of the head 30 of the stopper 10 is in contact with the upper surface 20 a of the base 4. The head 30 of the stopper 10 closes the opening of the axial groove 24. Thus, the pivot shaft 18 is prevented from coming off the base 4. The aggregate 6 is retained from the base 4. Furthermore, in the base 4, the stopper 10 is detachably attached to the base 4. By removing the stopper 10, the aggregate 6 and the pivot shaft 18 can be easily attached to and removed from the base 4.

  Furthermore, the aggregate groove 22 can be easily formed in the base body 20 by cutting. For example, it can be easily cut by moving the end mill while rotating from the upper surface 20a to the lower surface 20b of the base body 20. The axial groove 24 can be easily formed in the base body 20 by cutting. For example, an end mill is inserted into the aggregate groove 22 from the top surface 20a. By rotating the end mill and moving in a direction perpendicular to the aggregate groove 22 from the aggregate groove 22, cutting can be easily performed.

  Although the axial groove 24 is formed in the carriage 2 from the viewpoint of easily attaching the aggregate 6 to the base 4, the pivot shaft holding portion according to the present invention is not limited to this. For example, an axial hole orthogonal to the aggregate groove 22 may be formed as a rotation axis holding portion.

  Although this truck 2 is provided with four aggregates 6, the number of aggregates 6 may be two or more. It is preferable that the number of aggregates 6 is a plurality of three or more from the viewpoint of facilitating loading of luggage. In this dolly 2, although four aggregates 6 extend in a rectangular corner, it is not limited to this. Three aggregates 6 may extend in triangles, or five or more aggregates 6 may extend in polygons of five or more polygons. Furthermore, a plurality of aggregates 6 may extend in a circular radial direction.

  FIG. 5 shows a folding carriage 42 according to another embodiment of the present invention. Here, a configuration different from that of the carriage 2 will be described for the carriage 42. The description of the same configuration as the carriage 2 is omitted. The same configuration as that of the carriage 2 will be described using the same reference numerals.

  The carriage 42 includes a base 44, four aggregates 46, four casters 8 as wheels, and four top plates 48. FIG. 5 shows the use posture of the carriage 42 for loading and carrying the load. Arrow X in FIG. 1 represents forward and backward direction of the carriage 42, arrow Y represents leftward direction in the left and right direction, and arrow Z represents upward direction in the vertical direction.

  The proximal end 46 a of the aggregate 46 is attached to the base 44. The dashed-two dotted line 50 of FIG. 5 represents the substantially rectangular virtual mounting surface of this trolley | bogie 42. As shown in FIG. The mounting surface 50 is a virtual surface on which a load is placed. The aggregate 46 extends from the base 44 toward the corners of the mounting surface 50. The tip 46 b of the aggregate 46 is located at the corner of the mounting surface 50.

  Each top plate 48 includes a top plate main body 48 a and a non-slip sheet 48 b. The top plate main body 48a is made of, for example, a rigid resin plate, a wood plate, a metal plate or the like. The top plate main body 48 a is attached to the aggregate 46. The top plate main body 48 a is supported by the aggregate 46. In this usage posture, four top plates 48 are spread on one plane. The top board main body 48a has a trapezoidal shape when viewed from the upper side to the lower side. The width of the top plate main body 48a is made larger at the outer end 48d on the tip 46b side of the aggregate 46 than on the inner end 48c on the base 44 side. The width of the top plate body 48a gradually increases from the inner end 48c to the outer end 48d.

  The non-slip sheet 48b is attached to the upper surface of the top plate 48a. The non-slip sheet 48b is attached to the top surface of the top plate 48a by, for example, an adhesive. The non-slip sheet 48b is made of a non-slip material. The sliding material may be any material that exerts a non-slip function to the loaded luggage. The non-slip sheet 48b is made of, for example, a rubber sheet.

  As shown in FIG. 6, in the aggregate 46, an axial hole 46e is formed at the proximal end 46a. The axis of the axial hole 46 e extends parallel to the upper surface 46 c of the aggregate 46. In the use posture, the axis of the shaft hole 46e extends parallel to the mounting surface 50 of which the top plate 48 forms a part. Furthermore, a notch 46 f is formed above the proximal end 46 a of the aggregate 46. Since the notch 46f is formed, the upper end of the proximal end 46a is located below the upper surface 46c.

  As shown in FIGS. 7A and 7B, the carriage 42 further includes four pivot shafts 54. The base portion 44 includes a base body 52 and two sets of shaft support portions 56 as pivot shaft holding portions. The base body 52 has a plate-like shape. Although this base main body 52 is disk shape, the shape in particular is not limited. The base body 52 has an upper surface 52a facing upward and a lower surface 52b facing downward. The base body 20 is made of, for example, metal.

  Each shaft support 56 includes a first support plate 58 and a second support plate 60. The first support plate 58 and the second support plate 60 are made of, for example, metal. The first support plate 58 and the second support plate 60 are bent at the center in the longitudinal direction. The first support plate 58 and the second support plate 60 are fixed to the lower surface 52 b of the base main body 52. For example, the first support plate 58 and the second support plate 60 are welded to the base body 52. The first support plate 58 and the second support plate 60 extend in parallel with each other in the longitudinal direction.

  Each pivot shaft 54 is supported by the first support plate 58 and the second support plate 60. The axis of the pivot shaft 54 extends parallel to the upper surface 52 a of the base body 52. The axis extends orthogonal to the first support plate 58 and the second support plate 60. The pivot shaft 54 is made of, for example, metal.

  The folding posture of the carriage 42 is shown in FIG. While the tips 46b of the aggregate 46 are separated from each other in the use posture of FIG. 5, the tips 46b are closer to each other in this folded posture.

  The proximal end 46 a of the aggregate 46 is supported by the shaft support 56. The proximal end 46 a is located between the first support plate 58 and the second support plate 60. The pivot shaft 54 is passed through the axial hole 46 e of the aggregate 46. The aggregate 46 is attached to the base 44 with the proximal end 46 a (pivot shaft 54) as a rotation center and the distal end 46 b made rotatable.

  Although not shown, in this folded posture, the adjacent top plates 48 abut. As a result, the tip 46 b of the aggregate 46 is prevented from rotating in the direction opposite to the rotating direction in which the folding posture is changed to the use posture. On the other hand, in the use posture of FIG. 5, the notch 46 f of the aggregate 46 is in contact with the lower surface 52 b of the base main body 52. As a result, the tip 46 b of the aggregate 46 is prevented from rotating in the direction opposite to the rotating direction in which the use posture is changed to the folding posture. The carriage 42 can change its posture between the folded posture and the use posture shown in FIG. In the carriage 42, the base 44 has the function of the stopper 10 of the carriage 2.

  The carriage 42 includes a base 44, an aggregate 46 rotatably attached to the base 44, and a top plate 48 attached to the aggregate 46. The carriage 42 does not have a conventional square base plate. Since the rectangular base plate is not provided, the dolly 42 in the folded posture fits in a space-saving manner. The four top plates 48 of the carriage 42 are smaller and lighter than the conventional square-shaped base plate. The carriage 42 is easy to carry in the folded position.

  The carriage 42 is provided with a top plate 48 on which a load is placed. Even in the folded position, it is not necessary to press the sheet 12 between the aggregates 46 so as not to protrude outside like the carriage 2. The carriage 42 is easier to fold. Since the top plate 48 has rigidity, it is also excellent in durability. Moreover, it is excellent also in the aesthetics in a folding attitude | position.

  The width of the top plate 48 is wider on the side of the tip end 46 b than on the side of the base end 46 a of the aggregate 46. In the use posture of the carriage 42, the top plate 48 reduces the distance between the top plates 48 on the side of the tip 46b where the distance between the aggregates 46 is wide. Thereby, the loading of the top plate 48 is facilitated. On the other hand, since the width of the top 48 is narrow on the side of the base end 46a, inhibition of the change to the folding posture is suppressed.

  The width of the top plate body 48a gradually increases from the inner end 48c to the outer end 48d. This makes it possible to further facilitate the placement of the load and to inhibit the change to the folding posture. Further, the top board main body 48a also contributes to an improvement in the aesthetic appearance of the dolly 42 in the folding posture. From these points of view, in the carriage 42, the top plate main body 48a has a trapezoidal shape.

  The top plate 48 of the carriage 42 is provided with a non-slip seat 48 b. It is suppressed that the luggage placed on the top plate 48 slips on the top plate 48. The top plate 48 facilitates the transportation of the load. Although the top plate 48 includes the top plate main body 48 a and the non-slip sheet 48 b, the present invention is not limited to this. In the carriage 42, even when the top plate 48 does not include the anti-slip sheet 48b, the top plate 48 (the top plate main body 48a) may be made of an anti-slip material. Furthermore, both the top plate main body 48a and the non-slip sheet 48b may be made of non-slip material. Although this non-slip material is not particularly limited, for example, rubber is exemplified.

  In the carriage 42, the number of aggregates 46 may be two or more. The number of aggregates 46 is preferably a plurality of three or more. In this carriage 42, four aggregates 46 extend in a rectangular corner, but the present invention is not limited to this. Three aggregates 46 may extend in the triangle triangle, or five or more aggregates 46 may extend in the pentagon or more polygon corner. Furthermore, a plurality of aggregates 46 may extend in a circular radial direction.

  FIGS. 9A and 9B show an aggregate 64 of a folding carriage 62 according to still another embodiment of the present invention. Here, the configuration of this carriage 62 different from that of the carriage 42 will be described. The description of the same configuration as the carriage 42 is omitted. The same configuration as that of the carriage 42 will be described using the same reference numerals.

  Although not shown, the carriage 62 includes a base 44, four aggregates 64, four casters 8 as wheels, and four top plates 48. The dolly 62 has the same configuration as the dolly 42 except that it includes the aggregate 64 in place of the aggregate 46 of the dolly 42.

  The aggregate 64 of FIG. 9A includes a proximal end 64a and a distal end 64b. The proximal end portion 64a includes a proximal end body 64e and a slide shaft 64f extending from the proximal end body 64e. The distal end portion 64b is provided with a distal end portion main body 64g and a slide hole 64h opened in the longitudinal direction end surface of the distal end portion main body 64g. The slide shaft 64f of the proximal end 64a is inserted into the slide hole 64h. FIG. 9A shows a shortened posture in which the total length of the aggregate 64 is short.

  FIG. 9B shows a state in which the distal end 64b is moved away from the proximal end 64a with respect to the shortening posture shown in FIG. 9A. In 9 (B), the extended posture in which the total length of the aggregate 64 is long is shown. As shown in FIGS. 9A and 9B, the slide shaft 64f of the proximal end 64a is movable in the longitudinal direction with respect to the slide hole 64h of the distal end 64b. Thereby, the total length of the aggregate 64 can be changed.

  In the carriage 62, the total length of the aggregate 64 can be changed in accordance with the size of the load to be placed. The total length of the aggregate 64 can be changed in accordance with the space in which the carriage 62 is used, such as the width of the passage through which the carriage 62 travels. In the carriage 62, the carriage 62 can be in a shortened position during transport and in an extended position when the carriage 62 is used. The carriage 62 can be compact, but can also facilitate the transport of large packages.

  In the carriage 62, the proximal end 64a includes the slide shaft 64f, and the distal end 64b includes the slide hole 64h, but the distal end 64b may move relative to the proximal end 64a. For example, the proximal end 64a may include the slide hole 64h, and the distal end 64b may include the slide shaft 64f.

  In the carriage 62, although not shown, the top plate 48 is attached to the tip portion 64b. Further, the top plate 48 may be divided, and one may be attached to the proximal end 64 a and the other to the distal end 64 b.

  The carriages described above can be widely applied to transport carriages.

2, 42, 62 ... Bogie 4, 44 ... base 6, 46, 64 ... aggregate 6a, 46a, 64a ... base end 6b, 46b, 64b ... tip 8 ... · Caster 10 · · · Stopper 12 · · · seat 18, 54 · · · rotary shaft 20, 52 · · · base body 22 · · · aggregate groove 24 · · · axial groove 28 · · · female screw 30 · · · · · Head 34 · · · male screw 48 · · · top plate 48a · · · body top plate 48b · · · non-slip seat

Claims (5)

A base, a plurality of aggregates attached to the base, a plurality of wheels attached to the respective aggregates, and a plurality of top plates attached to the respective aggregates and on which the luggage is placed Yes,
Each aggregate is attached at its proximal end to the base so that its distal end can be pivoted,
The aggregate rotates the tip to change its posture between a use posture in which the tips are separated from each other and a folding posture in which the tips approach each other,
A folding carriage, wherein the wheel can be grounded in the use position.   The folding trolley according to claim 1, wherein the width of the top plate is wider on the tip end side than on the base end side.   The folding carriage according to claim 1, wherein the top plate is formed of a non-slip material.   The folding carriage according to claim 1 or 2, wherein the top plate comprises a top plate main body and a non-slip sheet, and the luggage is placed on the non-slip sheet attached to the top plate main body.   The folding carriage according to any one of claims 1 to 4, wherein the aggregate comprises the proximal end and the distal end movable in the longitudinal direction of the proximal end.

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