JP3202015U - bag - Google Patents

Abstract

An object of the present invention is to provide a bag having a caster for improving appearance. The case includes a case for storing an article and a caster 50 attached to the case. The caster 50 includes a caster head 57 extending from the case, an inner ring holding portion 60 provided on the caster head 57 for holding the inner ring 72 of the bearing 71, and a rotating wheel 56 provided on the outer ring 73 of the bearing 71. ing. A through portion 61 penetrating in the rotation axis direction is formed on the rotation center side of the inner ring holding portion 60. [Selection] Figure 5

Description

  The present invention relates to suitcases, trunks, and other bags that are carried for business or travel, and more particularly, to bags that are equipped with casters.

  There are two types of kites: a kite that is carried by grabbing a handle with a hand, and a kite with a caster that moves by touching and pulling the caster on the road surface. Various types of kites that have such casters to facilitate movement have been proposed (see, for example, Patent Document 1 (FIG. 3)).

The basic structure of the bag disclosed in Patent Document 1 will be described with reference to FIG.
As shown in FIG. 10, the caster 100 is provided in a bag such as a suitcase. The caster 100 includes an attachment base 101 provided at the bottom of the ridge, a turning shaft 102 provided on the attachment base 101, a fork portion 103 provided on the turning shaft 102 so as to be turnable, and a rotatable on the fork portion 103. And a wheel 104 provided.

  The wheel 104 includes an axle 105 provided at the lower end of the fork 103, a disc-shaped rim 106 provided rotatably on the axle 105, and a tire 107 provided on the outer periphery of the rim 106.

  In recent years, not only the functionality of the cocoon but also the appearance has been desired due to market needs. It is preferable if the appearance of not only the main body but also the caster can be improved. However, the conventional caster 100 has a general configuration in which a wheel 104 including an axle 105, a disk-shaped rim 106, and a tire 107 is attached to a fork portion 103, and has poor appearance. For this reason, improvement in the appearance of casters is desired.

JP2013-52755A

  This invention makes it a subject to provide the bag provided with the caster which improves an external appearance property.

  The invention according to claim 1 is a bag comprising a case for storing articles and a caster attached to the case, the caster extending from the case, and a bearing provided on the caster head. An inner ring holding portion for holding the inner ring and a rotating wheel provided on the outer ring of the bearing, and a rotation center side of the inner ring holding portion is formed with a penetrating portion penetrating in the rotation axis direction. To do.

  The device according to claim 2 is characterized in that the maximum dimension of the penetrating portion in a side view of the wheel is larger than the radius of the wheel.

  The invention according to claim 3 is characterized in that the caster is rotatably provided on a pivot shaft extending vertically from the bottom of the case.

  According to a fourth aspect of the present invention, the inner ring holding portion includes one end side restricting portion that restricts movement of the inner ring toward one end side in the rotation axis direction, and the other end that restricts movement of the inner ring toward the other end side in the rotation axis direction. The other end side restricting portion is fastened to the one end side restricting portion with a fastening member, and movement of the inner ring is restricted.

  The invention according to claim 5 is characterized in that, at the lower end of the caster head, a lateral spring portion extending in the lateral direction and having elasticity is provided, and an inner ring holding portion is provided in the lateral spring portion.

  The invention according to claim 6 is characterized in that an anti-vibration rubber having elasticity is provided between the lower surface of the lateral spring part and the lower part of the inner ring holding part.

  In the invention according to claim 7, the wheel has elasticity, and an annular groove along the rotation direction is provided on the outer diameter surface of the wheel.

  In the invention according to claim 1, the caster includes a caster head extending from the case, an inner ring holding portion that is provided on the caster head and holds the inner ring of the bearing, and a wheel that is provided on the outer ring of the bearing and rotates. Since a through-hole penetrating in the rotation axis direction is formed on the rotation center side of the inner ring holding portion, the other side can be seen from the inside of the wheel when the caster is viewed in the rotation axis direction of the wheel.

  Since the caster has a unique hollow shape in which the other side can be seen from the inside of the wheel, the appearance of the caster can be improved. Further, since the wheel portion of the caster has a hollow shape without a disc-shaped rim, the weight of the entire caster can be reduced.

  In the invention according to claim 2, since the maximum dimension of the penetrating portion in the side view of the wheel is larger than the radius of the wheel, the penetrating portion is enlarged to make the wheel stand out and the appearance of the caster can be further improved.

  In the invention according to claim 3, since the caster is rotatably provided on the pivot shaft extending vertically from the bottom of the case, the direction of the caster can be changed according to the traveling direction of the kite.

  In the invention according to claim 4, the inner ring holding portion includes one end side restricting portion that restricts movement of the inner ring toward one end side in the rotation axis direction, and the other end that restricts movement of the inner ring toward the other end side in the rotation axis direction. Side regulating part. Since the other end side restricting portion is fastened to the one end side restricting portion by a fastening member and the movement of the inner ring is restricted, the support structure for the inner ring of the bearing can be simplified.

  According to a fifth aspect of the present invention, the lower end of the caster head is provided with a lateral spring portion that extends in the lateral direction and has elasticity. Since the inner ring holding portion is provided in the lateral spring portion, the impact from the road surface can be absorbed by the lateral spring portion, and the vibration of the kite can be reduced.

  According to the sixth aspect of the present invention, since the vibration-proof rubber having elasticity is provided between the lower surface of the lateral spring part and the lower part of the inner ring holding part, the shock from the road surface is also absorbed by the vibration-proof rubber. Can be further reduced.

  In the invention according to claim 7, since the wheel has elasticity and an annular groove along the rotational direction is provided on the outer diameter surface of the wheel, the ground contact surface of the wheel is divided, and the road surface (floor surface) is separated. The contact area can be reduced. As a result, it is possible to reduce the influence received from the unevenness of the road surface (floor surface), and to reduce the noise of the wheel during movement.

It is a side view of a bag according to the present invention. 1 is an exploded sectional view of a caster according to Embodiment 1. FIG. It is a side view of the caster concerning Example 1. FIG. 4 is a view taken along arrow 4 in FIG. 3. FIG. 5 is a sectional view taken along line 5-5 of FIG. It is an effect | action figure of a wheel. It is a side view of the caster concerning Example 2. FIG. 8 is a view taken in the direction of arrow 8 in FIG. 7. It is a figure explaining the other aspect of FIG. It is a figure explaining the basic composition of a prior art.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

First, a first embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the bag 10 includes a main body side case 21 for storing articles, a lid side case 22 attached to the main body side case 21 via a hinge, and a main body side. The case 21 is provided with an extendable handle 11 that can be pulled out.

  In the upper part of the case 21 on the main body side, a portable upper grip 12 is provided separately from the extendable handle 11 so as to be swingable, undulating or pulling out. Further, a side grip 13 for carrying is provided on the side of the case 21 on the main body side so as to be swingable, undulating or pulling out. Note that the shape of the upper gripping portion 12 and the shape of the side gripping portion 13 are not limited to the shapes of the embodiments, but may be fixed, and other general handles can be used as long as they can be gripped by hand. Even if it is a shape, it does not interfere. Further, the side grip 13 may be omitted.

  A base 31 is attached to the bottom 23 of the cases 21 and 22, and a caster 50 is attached to the base 31. When the caster 50 is attached at the lower part of the cases 21 and 22, the extendable handle 11 is located at the upper back of the case 21 on the main body side, and by pulling out the extendable handle 11 and holding it by hand, the bag 10 Can be towed. Moreover, by installing the caster 50 on the road surface or the floor surface 81, the bag 10 can be moved independently by holding the bag 10 by itself and holding the upper holding part 12 by hand.

  As shown in FIGS. 2 and 3, the lid-side case 22 includes a bottom 23 and a side wall 24 that rises from the outer periphery of the bottom 23 in a state where the bag 10 is self-supporting. A concave portion 25 that is recessed upward is formed in a corner portion of the case 22 on the lid side, and a caster 50 is disposed in the concave portion 25. A base 31 is disposed on the bottom 23 of the case 22 on the lid side so as to fit into the recess 25, and the base 31 is fastened to the bottom 23 by a first fastening member 41.

  For convenience, the caster 50 attached to the case 22 on the lid side via the base 31 will be described. However, since the case 21 on the main body side has the same configuration, the description of the case 21 on the main body side will be omitted hereinafter. To do.

  The caster 50 includes a caster base 51 having a hole 51 a formed in the center, an upper holding portion 53 provided below the caster base 51 and holding the axial raceway 52 a of the thrust bearing 52, and the upper holding portion 53. A thrust bearing 52 provided on the lower side, a lower holding part 54 provided on the lower side of the thrust bearing 52 and holding the housing washer 52b of the thrust bearing 52, and an inner ring holding part 60 extending downward from the lower holding part 54 The caster head 57 which supports the wheel 56 via this is provided.

  A hollow portion 57a is formed in the caster head 57, and a shaft hole 57b is formed in the upper portion of the hollow portion 57a. A cup-shaped pivot shaft 58 is inserted into the shaft hole 57b from below, and the cup-shaped pivot shaft 58 is Two fastening members 42 are fastened to the base 31. The cup-like turning shaft 58 has a flange portion 58a, and the upper portion of the caster head 57 is supported by the flange portion 58a.

  The pivot shaft 58 extends vertically from the bottom 23 of the case 22 on the lid side. For this reason, the direction of the caster 50 can be changed according to the traveling direction of the rod 10. The caster base 51 and the upper holding portion 53 are covered with the boot 32. The base 31 is formed with an attachment portion 31 a for attaching the caster base 51 covered with the boot 32.

  As shown in FIG. 4, the caster head 57 includes two leg portions 57c and 57c that are separated from an intermediate portion in the vertical direction and extend obliquely downward, and wheels 56 and 56 are provided on the two leg portions 57c and 57c, respectively. It has been. In addition, in the Example, although the caster 50 was set as the aspect provided with the two wheels 56, it is not limited to this, The caster 50 may be set as the aspect provided with one wheel 56 via the one leg part 57c.

  As shown in FIGS. 2, 3, and 5, the caster 50 holds a caster head 57 extending downward from the lower holding portion 54 and an inner ring 72 of a bearing 71 provided on a leg portion 57 c of the caster head 57. An inner ring holding portion 60 that rotates, and a wheel 56 that is provided on the outer ring 73 of the bearing 71 and rotates. A through portion 61 that penetrates in the direction of the rotation axis C is formed on the rotation center side of the inner ring holding portion 60.

  Since such a penetration part 61 is formed, when the caster 50 is viewed in the direction of the rotation axis C of the wheel 56, the other side can be seen from the inside of the wheel 56. Since the caster 50 has a unique hollow shape in which the other side can be seen from the inside of the wheel 56, the appearance of the caster 50 can be improved. Furthermore, since the wheel 56 portion of the caster 50 has a hollow shape without a disk-shaped rim, the entire caster 50 can be reduced in weight.

  Further, the maximum dimension d1 of the through portion 61 in the side view of the wheel is larger than the radius R1 of the wheel 56. For this reason, the penetration part 61 can be enlarged and the wheel 56 can be made conspicuous, and the external appearance property of the caster 50 can be improved further.

  The bearing 71 includes an inner ring 72, an outer ring 73, and a rolling element 74, and is a type that is sealed so that water, dust, and the like do not enter between the inner ring 72 and the outer ring 73. Is preferred. In the embodiment, the bearing 71 has the rolling element 74. However, the bearing 71 may be a sliding bearing without the rolling element 74.

  The inner ring holding part 60 includes a first end restricting part 62 that restricts movement of the inner ring 72 toward one end in the direction of the rotation axis C, and a second end restriction that restricts movement of the inner ring 72 toward the other end in the direction of the rotation axis C. The other end side restricting portion 63 is fastened to the one end side restricting portion 62 by the third fastening member 43, and the movement of the inner ring 72 is restricted. The inner diameter side of the inner ring 72 is supported by the one end side restricting portion 62. Thus, the other end side restricting portion 63 is fastened to the one end side restricting portion 62 by the third fastening member 43 and the movement of the inner ring 72 is restricted, so that the support structure of the inner ring 72 of the bearing 71 can be simplified. .

  The outer ring 73 of the bearing 71 is provided with outer ring holding members 64 and 65 that hold one end side and the other end side of the outer ring 73 in the rotation axis C direction, respectively. The wheel 56 has elasticity, and a bearing concave portion 56g for fitting the outer ring holding members 64 and 65 is formed on the inner diameter side. The outer ring 73 is fitted in the bearing recess 56g with the outer ring holding members 64 and 65 attached.

  An annular groove 56b is provided on the outer diameter surface 56a of the wheel 56 along the rotational direction. The wheel 56 includes a first grounding part 56c, a second grounding part 56d, a third grounding part 56e, and a fourth grounding part 56f. In the embodiment, the number of the annular grooves 56b is three. However, the number is not limited to this, and there may be two, four, or the like.

Next, the operation of the wheel 56 will be described.
As shown in FIG. 6A, a small convex portion 82 is formed on the floor surface 81. The wheel 56 rotates as indicated by the arrow (1) and rides on the convex portion 82.
As shown in FIG. 6 (b), only the third grounding portion 56e and the fourth grounding portion 56f of the wheel 56 ride on the convex portion 82 and are deformed. Since the annular groove 56b is formed in the wheel 56, the elastic wheel 56 can be easily deformed. As a result, even with the wheels 56 alone, it is possible to absorb the impact of small irregularities, and the noise reduction effect can be further improved.

Next, a second embodiment of the present invention will be described with reference to the drawings. The same components as those shown in FIGS. 3 and 4 are denoted by the same reference numerals, and detailed description thereof is omitted.
As shown in FIGS. 7 and 8, the caster 50 includes a caster head 57 extending downward from the lower holding portion 54. At the lower end of the caster head 57, a lateral spring portion 59 extending in the lateral direction and having elasticity is provided, and inner ring holding portions 60 are provided at both ends of the lateral spring portion 59.

  A gap 66 that is bent along the inner diameter of the wheel 56 is formed between the lower surface 59 a of the lateral spring portion 59 and the inner ring holding portion 60. Since the inner ring holding part 60 is provided in the elastic lateral spring part 59 and the gap 66 is formed below the lateral spring part 59, the impact from the road surface 81 (see FIG. 1) is absorbed by the lateral spring part 59. The vibration of the ridge 10 can be reduced.

Next, another aspect of FIG. 7 will be described.
As shown in FIG. 9, a gap 66 bent along the inner diameter of the wheel 56 is formed between the lower surface 59 a of the lateral spring part 59 and the lower part of the inner ring holding part 60, and the gap 66 is elastic. An anti-vibration rubber 67 is provided.

  Since the anti-vibration rubber 67 having elasticity is provided, the vibration from the road surface 81 can be absorbed by the anti-vibration rubber 67 and the vibration of the eaves 10 can be further reduced.

  In addition, although the Example demonstrated the caster 50 provided in the case 22 of the lid | cover side, the caster 50 provided in the case 21 of the main body side is also the same structure. In the embodiment, the bag is a suitcase. However, the bag is not limited to this. A trunk or the like may be used, and any other general bag may be used as long as the baggage can be stored and moved by a caster.

  The present invention is suitable for a bag equipped with casters.

DESCRIPTION OF SYMBOLS 10 ... 鞄 21 ... Body side case 22 ... Lid side case 23 ... Bottom 50 ... Caster 56 ... Wheel 56a ... Outer diameter surface 56b ... Annular groove 57 ... Caster head 58 ... Rotating shaft 59 ... Horizontal spring part 59a ... Horizontal spring The lower surface of the part 60 ... the inner ring holding part 61 ... the through part 62 ... one end side restricting part 63 ... the other end side restricting part 66 ... the gap 67 ... the vibration isolating rubber 71 ... the bearing 72 ... the inner ring 73 ... the outer ring

Claims (7)

A bag made up of a case for storing articles and a caster attached to the case,
The caster includes a caster head extending from the case, an inner ring holding portion that is provided on the caster head and holds an inner ring of the bearing, and a wheel that is provided on the outer ring of the bearing and rotates.
The inner ring holding part is formed with a penetrating part penetrating in the rotation axis direction on the rotation center side.   The bag according to claim 1, wherein a maximum dimension of the penetrating portion in a side view of the wheel is larger than a radius of the wheel.   The scissor according to claim 1 or 2, wherein the caster is rotatably provided on a pivot shaft extending vertically from the bottom of the case. The inner ring holding portion includes a first end restricting portion that restricts movement of the inner ring toward one end side in the rotation axis direction, and a second end side restricting portion that restricts movement of the inner ring toward the other end side in the rotation axis direction. Have
The scissors according to any one of claims 1 to 3, wherein the other end side restricting portion is fastened to the one end side restricting portion by a fastening member to restrict movement of the inner ring. The lower end of the caster head is provided with a lateral spring portion that extends in the lateral direction and has elasticity,
The scissors according to any one of claims 1 to 4, wherein the inner ring holding portion is provided in the lateral spring portion.   6. The scissors according to claim 5, wherein a vibration-proof rubber having elasticity is provided between a lower surface of the horizontal spring portion and a lower portion of the inner ring holding portion. The wheel has elasticity;
The bag according to any one of claims 1 to 6, wherein an annular groove along a rotation direction is provided on an outer diameter surface of the wheel.

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