JP3211117U - Carrier bag - Google Patents

Abstract

There is provided a carrier bag capable of smoothly pulling up a staircase even if the staircase is lifted while being inclined with respect to the step direction of the staircase. A carrier bag 10 includes a bag body 11 in which a stored item is stored, a handle 12 is disposed on an upper portion 11a, and a flat caster 13 is disposed on a bottom surface 11b, and a back surface 11f of the bag body 11. Stair casters 15 arranged in a row are provided. Since the stair caster 15 is formed of a free ball bearing, it can be rotated 360 degrees in all directions. Therefore, even if the carrier bag 10 is inclined with respect to the climbing direction of the stair, the stair caster 15 Can rotate in the direction of climbing stairs. [Selection] Figure 2

Description

  The present invention relates to a carrier bag that can be easily transported while rolling casters even on stairs.

The carrier bag having the casters at the bottom can be easily transported even if the weight of the carrier bag increases by pulling the handle extending from the top.
When the carrier bag is transported where there is a step, such as a staircase, rather than on a flat ground, the caster at the bottom is useless, so it is necessary to lift the carrier bag. Therefore, if the weight increases due to the stored items, the carrier bag cannot be easily transported.
A technique that can be easily transported even on such a staircase is not a carrier bag, but is disclosed in Patent Document 1.

  A polycontainer with a kerosene transport caster or a polycontainer transport caster described in Patent Document 1 is provided with a plurality of steps for raising and lowering a staircase in a handle storage cylinder in which an extendable handle capable of two-stage expansion and contraction is stored.

  According to the polycontainer with a kerosene transport caster or the polycontainer transport caster described in Patent Document 1, a roller for raising and lowering stairs is arranged on the back of the handle storage cylinder. If the roller for raising and lowering the stairs is brought into contact with the corner of the stairs during the movement of the stairs, the raising and lowering of the stairs can be facilitated.

Utility Model Registration No. 3167733

  However, in the polycontainer with a kerosene transport caster described in Patent Document 1 or the polycontainer transport caster, because the stair lift rollers through which the support shaft penetrates in the center of the disk are aligned in a line from the bottom to the top, It must be pulled straight and parallel to the direction of the stairs. If the pulling direction is tilted with respect to the level difference, the roller for raising and lowering the staircase is in contact with the tilted corner of the staircase, so that it becomes difficult to rotate.

  Therefore, an object of the present invention is to provide a carrier bag that can smoothly pull up the stairs even if it is lifted in a state inclined with respect to the step direction of the stairs.

  The carrier bag of the present invention comprises a bag body in which a stored item is stored inside, a handle is disposed at the top, and a flat caster is disposed on the bottom surface, and a stair caster arranged in a row on the back of the bag body. The stair caster is formed of a free ball bearing.

  According to the carrier bag of the present invention, when the user pulls the carrier bag and climbs the stairs or descends the stairs, the pulling direction may be inclined with respect to the climbing direction of the stairs. However, since the stair caster is formed by a free ball bearing, it can be rotated 360 degrees in all directions. Therefore, even if the carrier bag of the present invention is tilted in the pulling direction with respect to the climbing direction of the stairs, the stair caster can rotate in the climbing direction of the stairs.

  A ratchet caster can be provided below the stair caster. When climbing, the ratchet caster will rotate forward, but if the stair caster rolls due to the weight of the carrier bag and slips down, the ratchet caster will be restricted from rotating in reverse, so the ratchet caster will function as a brake Can do. Therefore, it is possible to prevent the carrier bag from moving backward on the stairs.

  When the ratchet type caster is switched between a normal rotation and non-reversible state and a reverse rotation and non-forward rotation state, the ratchet type caster can be reversed and not forward rotation not only when climbing stairs but also when descending. By switching to a different state, the carrier bag of the present invention can be lowered.

  A cover for exposing the ball portion of the stair caster and covering other portions can be provided. Since the cover exposes only the ball part, it is possible to improve the design and to prevent rainwater and dust from entering the stair caster and making it difficult for the stair caster to roll. Can do.

The stair casters are arranged in two rows as a first row and a second row, and each of the stair casters arranged in the second row is positioned between the stair casters arranged in the first row. Can be arranged to be.
The stair casters are arranged so that each of the stair casters arranged in the second row is located between the stair casters arranged in the first row, so that the stair casters are brought close to each other in one row. The interval between the casters for stairs can be set shorter than the case where they are arranged.
Therefore, even when the stairs corners fit between the stairs casters arranged in the first row, the stairs casters arranged in the second row can be brought into contact with the stairs corners, so that the stairs can be smoothly climbed. Can be made.

  Since the handle is formed so as to incline toward the front surface with the base end portion as the center, the user's hand pulling the carrier bag can be placed at a high position, so that the carrier bag can be pulled in an easy posture. Can be raised.

  According to the carrier bag of the present invention, since the stair caster is formed by a free ball bearing, it can be rotated 360 degrees in all directions. Even if it inclines, the caster for stairs can rotate toward the climbing direction of the stairs. Therefore, the carrier bag according to the present invention can smoothly pull up the stairs even if the carrier bag is lifted while being inclined with respect to the step direction of the stairs.

It is a side view of the carrier bag concerning an embodiment of the invention. It is a rear view of the carrier bag shown in FIG. It is sectional drawing for demonstrating the caster for stairs of the carrier bag shown in FIG. It is a figure for demonstrating the state which pulls up the carrier bag shown in FIG.

The carrier bag which concerns on embodiment of this invention is demonstrated based on drawing.
In addition, in this specification, up and down is demonstrated by making the carrier bag upright and the state at the time of making the flat caster contact the ground as a conveyance posture. In addition, when the carrier bag is opened in a lying state, the side serving as the lid is described as the front surface, and the side serving as the bottom is described as the back surface.

As shown in FIG. 1 and FIG. 2, the carrier bag 10 stores a stored item inside a bag body 11.
The bag body 11 is formed in a substantially rectangular parallelepiped shape, the handle 12 is disposed on the upper portion 11a on the back side, and four flat casters 13 are disposed on the bottom surface 11b.
Further, when the bag body 11 is lying down and the fastener 14 is opened, one (front side) of the bag body 11 becomes the lid part 111 and the other (back side) becomes the bottom part 112.
The fastener 14 is formed from the top surface 11c through one side surface 11d to the bottom surface 11b, and a hinge portion is formed on the other side surface 11e.

The handle 12 is stored in the bag body 11 when not in use, and is pulled upward when used.
The handle 12 includes a pair of parallel rod portions 121 and a grip portion 122 that connects upper end portions of the rod portions 121 to each other. The rod part 121 can be expanded and contracted in two stages or three stages by connecting pipes that become thinner in stages.

  An angle adjusting mechanism is formed at the base end portion 12 a of the handle 12. The angle adjusting mechanism is formed so as to be inclined stepwise toward the front surface side around the base end portion 12a. In the present embodiment, it is formed by a ratchet gear. The base end portion 12a of the handle 12 by the ratchet gear is operated when the handle 12 is tilted, fixed to maintain the tilted position of the handle 12, and the handle 12 is returned straight to the bag body 11. Can be switched to release.

On the back surface 11f of the bag body 11, stair casters 15 arranged in a line are provided.
The stair caster 15 is formed of a free ball bearing.
As shown in FIG. 3, the stair caster 15 includes a ball portion 15a serving as a wheel, a ball portion 15a accommodated therein, a pedestal portion 15b fixed to the bag body 11, and a pedestal portion 15b. In order to smoothly rotate the ball portion 15a, a small-diameter ball portion 15c disposed so as to surround the sliding surface of the ball portion 15a is provided.

  The pedestal portion 15b has a rhombus outer shape, and a circular opening smaller than the diameter of the ball portion 15a is formed in a storage portion in which the ball portion 15a is stored.

  A pair of stair casters 15 arranged in two rows as a first row 16 and a second row 17 are formed at both ends in the left-right direction. The stair casters 15 are arranged such that each of the stair casters 15 arranged in the second row 17 is positioned between the stair casters 15 arranged in the first row 16. In the present embodiment, the corners of the pedestal portions 15b arranged in the second row 17 are arranged so as to fill the gaps in the triangular gaps formed between the rhombus pedestal portions 15b arranged in the first row 16. Yes.

  A pair of ratchet casters 18 is provided below the stair caster 15. The ratchet type caster 18 freely rotates in the forward direction at the time of climbing, but the rotation is restricted when the reverse rotation is attempted. In addition, the ratchet caster 18 freely rotates in the reverse direction when descending, but is restricted when trying to rotate forward. The ratchet type caster 18 can be switched between a state in which forward rotation is possible and non-reversible, and a state in which reverse rotation is possible and the forward rotation is not possible.

The stair caster 15 is covered with a cover 19.
The cover 19 is formed so as to expose the ball portion 15a of the stair caster 15 and cover other portions.

The use state of the carrier bag according to the embodiment of the present invention configured as described above will be described with reference to the drawings.
As shown in FIGS. 1 and 2, on a flat road, the user grasps the grip portion 122 and extends the rod portion 121, thereby pulling the handle 12 from the bag body 11 and pulling the handle 12 in the traveling direction. . By doing so, since the flat caster 13 formed on the bottom surface 11b of the bag body 11 rolls, the carrier bag 10 can be easily transported.

In the step such as the staircase S shown in FIG. 4, the user makes the stair caster 15 on the back surface 11f of the carrier bag 10 abut on the corner of the staircase and slides it up or down. The carrier bag 10 can be transported even on stairs.
At this time, when the user pulls the carrier bag 10 and climbs or goes down the stairs S, the pulling direction may be inclined with respect to the climbing direction F of the stairs S. However, since the stair caster 15 is formed by a free ball bearing, the stair caster 15 can be rotated 360 degrees in all directions.
Therefore, even if the pulling direction is inclined with respect to the climbing direction F, the carrier bag 10 can be pulled up along the climbing direction F with the tilted state.

As shown in FIG. 2, the stair casters 15 are arranged such that each of the stair casters 15 arranged in the second row 17 is located between the stair casters 15 arranged in the first row 16. Therefore, the space | interval of the caster 15 for stairs can be arrange | positioned short rather than the case where the caster 15 for stairs is approached and it arranged in 1 row.
Therefore, even when the corner of the staircase S is located between the staircase casters 15 arranged in the first row 16, the corner of the staircase S can be brought into contact with the staircase casters 15 arranged in the second row 17. The stairs S can be climbed smoothly.

As shown in FIG. 4, when pulling up the stairs S, if the weight of the carrier bag 10 is heavy, the stairs S are likely to slide down. However, a ratchet caster 18 is provided below the stair caster 15 in the column direction. Therefore, when the climber climbs, the ratchet caster 18 rotates in the forward direction. However, when the stair caster 15 reverses due to the weight of the carrier bag 10, the ratchet caster 18 is restricted from rotating backward. 18 can function as a brake.
Therefore, it is possible to prevent the carrier bag 10 from retreating the stairs S.

  When going down the stairs S, the rotation direction of the ratchet caster 18 is switched. By doing so, it is possible to reverse the ratchet caster 18 even when going down the stairs S, so that the carrier bag 10 can be lowered along the stairs S.

When the carrier bag 10 is pulled up or down on the stairs S, if the handle 12 is pulled straight out from the bag main body 11, the position of the grip portion 122 of the handle 12 becomes close to the stairs S. The user's hand that pulls the carrier bag 10 is in a low position, and is difficult to pull up.
However, an angle adjustment mechanism is formed at the base end portion 12a of the handle 12, and is formed so as to incline toward the front surface with the base end portion 12a as the center. Since the carrier bag 10 can be pulled up in an easy posture.

  As shown in FIG. 2, since the cover 19 is formed so as to expose the ball portion 15a of the stair caster 15 and cover other portions, the pedestal portion 15b of the stair caster 15 can be hidden. The design can be improved, and rainwater and dust can be prevented from entering the pedestal portion 15b from the opening of the pedestal portion 15b and preventing the stair caster 15 from becoming difficult to roll.

  Since the present invention can easily raise steps such as stairs, carrier bags used for travel and business trips, such as those in which the bag body is made of a hard shell or made of soft cloth It is suitable for.

DESCRIPTION OF SYMBOLS 10 Carrier bag 11 Bag main body 11a Upper part 11b Bottom surface 11c Upper surface 11d, 11e Side surface 11f Rear surface 111 Lid part 112 Bottom part 12 Handle 12a Base end part 121 Rod part 122 Grasping part 13 Flat caster 14 Fastener 15 Stair caster 15a Ball part 15b Base Part 15c Small diameter ball part 16 1st row 17 2nd row 18 Ratchet caster 19 Cover S Stair F Climbing direction

Claims (6)

The bag body in which the stored items are stored, the handle is disposed at the top, and the flat casters are disposed on the bottom surface;
A stair caster arranged in a row on the back of the bag body,
The stair caster is a carrier bag formed by a free ball bearing.   The carrier bag according to claim 1, wherein a ratchet caster is provided below the stair caster.   The carrier bag according to claim 2, wherein the ratchet type caster is switched between a state in which the ratchet type caster is capable of normal rotation and cannot be reversely rotated, and a state in which the ratchet type caster is capable of reverse rotation and is not capable of normal rotation.   The carrier bag according to any one of claims 1 to 3, further comprising a cover that exposes a ball portion of the stair caster and covers other portions. The stair casters are arranged in two rows as a first row and a second row,
The carrier according to any one of claims 1 to 4, wherein each of the stair casters arranged in the second row is disposed between the stair casters arranged in the first row. bag   The carrier bag according to any one of claims 1 to 5, wherein the handle is formed so as to be inclined toward a front surface side with a base end portion as a center.

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