JP3204181U - bag - Google Patents

Abstract

An object of the present invention is to provide a kite equipped with casters that can alleviate the impact from the wheels and improve the appearance. A bag comprising a case for storing articles and a caster 50 attached to the case. The caster 50 includes a caster head 51 that extends from the case, and a buffer mechanism 61 that is provided on the caster head 51 to reduce the impact and bias the wheels 52 to the initial position. Further, the buffer mechanism 61 is provided with an inner diameter support mechanism 71 that supports the inner diameter side of the wheel 52 so as to be movable in the urging direction. A through-hole 72 that penetrates in the rotation axis direction is formed on the rotation center side of the inner diameter support mechanism 71. [Selection] Figure 4

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.

  Some cages have casters attached to facilitate movement. The cage supported by the caster may vibrate due to unevenness of the road surface or floor surface when moving, and may generate noise. Various wrinkles having a structure for reducing vibration and noise have been proposed (see, for example, Patent Document 1 (FIG. 1)).

The basic principle of the bag disclosed in Patent Document 1 will be described with reference to FIG.
As shown in FIG. 9, in the bag 100, a caster 102 is provided in a case 101 that stores articles. The caster 102 is provided on a base 103 attached to the bottom of the case 101 so that a caster head 105 can pivot via a support shaft 104, and the caster head 103 relaxes an impact at a position away from the support shaft 104. A buffer means 106 is provided.

  A cavity 107 extending in the vertical direction is formed in the buffering means 106, and two elongated holes 108 extending vertically are formed in the opposite side walls across the cavity 107, and the axle 109 is supported in these elongated holes 108. The bearing guide member 110 is inserted so as to be movable up and down. In the cavity 107, a first elastic member 111 is provided above the bearing guide member 110, and a second elastic member 112 is provided below the bearing guide member 110. When the wheel 113 rides on the unevenness of the road surface or floor surface while the heel 100 is moving, the bearing guide member 110 moves up and down, and the first elastic member 111 and the second elastic member 112 expand and contract, so that an impact transmitted from the wheel 113 is received. The vibration of the heel 100 is weakened to some extent.

  By the way, in recent years, in addition to the functionality of the bag, it is desired to improve the appearance 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 102 has a general configuration in which a disk-shaped wheel 113 is attached to an axle 109 and has poor appearance. For this reason, it is desired to reduce the impact from the wheels and improve the appearance of the casters.

Utility Model Registration No. 3176328

  An object of the present invention is to provide a bag equipped with a caster that can alleviate the impact from the wheels and improve the appearance.

  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 an impact provided on the caster head. And a buffer mechanism that urges the wheel to the initial position, an inner diameter support mechanism that is movably provided in the buffer mechanism and supports the inner diameter side of the wheel, and is rotatable to the inner diameter support mechanism And a through-hole penetrating in the rotation axis direction is formed on the rotation center side of the inner diameter support mechanism.

  The invention according to claim 2 is characterized in that the maximum dimension of the penetrating portion in a side view of the wheel is 1/3 or more of the outer diameter of the wheel.

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

  In the invention according to claim 4, the shock absorbing mechanism includes a cylinder portion that is provided on the caster head and that opens downward, a support shaft that extends in an axial direction from the upper wall of the cylinder portion, and a part of which slides inside the cylinder portion. A cylindrical piston that can be provided and through which a support shaft is inserted, and an elastic member that is disposed between the upper wall of the cylinder portion and the upper end of the piston can be provided.

  In the invention according to claim 5, the inner diameter support mechanism includes an arm extending from the buffer mechanism, an annular support portion provided on the arm and formed annularly on the inner diameter side of the wheel, and an outer diameter side of the annular support portion. And a rolling element that rotatably supports the wheels.

  According to a sixth aspect of the present invention, the inner diameter support mechanism includes an arm extending from the buffer mechanism, an annular support portion provided on the arm and formed annularly on the inner diameter side of the wheel, and an outer diameter side of the annular support portion. And a bearing for rotatably supporting the wheel.

  In the invention according to claim 1, since the caster is provided with a buffer mechanism that reduces the impact and urges the wheel to the initial position, the impact from the wheel can be reduced and vibration and noise can be reduced. Further, the caster includes an inner diameter support mechanism that is provided in the buffer mechanism so as to be movable in the biasing direction and supports the inner diameter side of the wheel, and a wheel that is rotatably supported by the inner diameter support mechanism. Since the center side is formed with a penetrating portion that penetrates in the direction of the rotation axis, when the caster is viewed in the direction of the rotation axis of the wheel, the other side can be seen from the inside 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. That is, it is possible to provide a bag equipped with casters that can alleviate the impact from the wheels and improve the appearance.

  In the invention according to claim 2, since the maximum dimension of the penetrating part in the side view of the wheel is not less than 1/3 of the outer diameter of the wheel, the penetrating part is enlarged to make the wheel stand out and the appearance of the caster is further improved Can be improved.

  In the invention according to claim 3, since the caster is pivotably 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 shock absorbing mechanism includes a cylinder portion that is provided on the caster head and that opens downward, a support shaft that extends in an axial direction from the upper wall of the cylinder portion, and a part of which slides inside the cylinder portion. A cylindrical piston that can be provided and through which a support shaft is inserted, and an elastic member that is disposed between the upper wall of the cylinder portion and the upper end of the piston are provided. Since the cylindrical piston is guided by two members, the cylinder part and the support shaft, it is stably supported without rattling even if the piston slides, and the piston is smoothly slid to reduce the impact. Can support the wheel firmly.

  In the invention according to claim 5, the inner diameter support mechanism includes an arm extending from the buffer mechanism, an annular support portion provided on the arm and formed annularly on the inner diameter side of the wheel, and an outer diameter side of the annular support portion. And the rolling element that rotatably supports the wheel, the hollow wheel can be supported with a simple configuration in a side view. Furthermore, the appearance of the caster can be improved by combining the arm with a hollow wheel.

  According to a sixth aspect of the present invention, the inner diameter support mechanism includes an arm extending from the buffer mechanism, an annular support portion provided on the arm and formed annularly on the inner diameter side of the wheel, and an outer diameter side of the annular support portion. And a bearing for rotatably supporting the wheel. Since a general bearing is used, assembly is facilitated, and the number of assembling steps and part costs can be reduced.

It is a side view of a bag according to the present invention. It is a principal part enlarged view of the bag of FIG. FIG. 3 is a view taken in the direction of arrow 3 in FIG. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a sectional view taken along line 5-5 of FIG. It is a disassembled perspective view of an internal diameter support mechanism and a wheel. It is an effect | action figure of a caster. It is sectional drawing of the caster which concerns on another 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, an 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. In addition, by installing the caster 50 on the floor surface or the road surface 91, it is possible to make the bag 10 stand on its own, hold the upper gripping part 12 by hand, and move the bag 10.

  As shown in FIGS. 2 and 3, the case 21 on the main body side 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 at a corner portion of the case 21 on the main body side, a base 31 is provided so as to fit into the concave portion 25, and a caster 50 is provided on the base 31.

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

  The caster 50 includes a caster head 51 that extends downward from the base 31 and a buffer mechanism 61 that is provided on the caster head 51 and reduces the impact from the wheels 52 and biases the wheels 52 to the initial position. Further, the buffer mechanism 61 is provided with an inner diameter support mechanism 71 that supports the inner diameter side of the wheel 52 so as to be movable in the urging direction, and the wheel 52 is rotatably provided on the inner diameter support mechanism 71.

  On the rotation center side of the inner diameter support mechanism 71, a penetrating portion 72 penetrating in the rotation axis direction is formed. Since the penetrating portion 72 is formed, when the caster 50 is viewed in the direction of the rotation axis of the wheel 52, the other side can be seen from the inside of the wheel 52. Since the caster 50 has a unique hollow shape in which the other side can be seen from the inside of the wheel 52, the appearance of the caster 50 can be improved.

  The through portion 72 is formed in a circular shape in a side view of the wheel, and the dimension D1 of the through portion 72 is 1/3 or more of the outer diameter D2 of the wheel 52. Along the diameter of the wheel 52, a dimension L1 from the outer periphery of the wheel 52 to one end of the penetrating part 72, a dimension D1 of the penetrating part 72, and a dimension L2 from the other end of the penetrating part 72 to the outer periphery of the wheel 52 are L1 = D1. By setting = L2, the thickness of the wheel 52 and the size of the penetrating portion 72 can be made the same, and the appearance can be improved.

  Furthermore, by setting the dimensions so that L1 = L2 <D1, the penetrating portion 72 can be made larger. By making the penetration part 72 appear larger, the wheel 52 can be made conspicuous and the appearance of the caster 50 can be further improved.

  As shown in FIG. 4, a recess 25 is formed in the bottom 23 of the case 21 on the main body side, and a base 31 is disposed so as to fit into the recess 25, and the base 31 is fastened to the bottom 23 by a first fastening member 41. Has been.

  A counterbore hole 32 is provided in the center portion of the base 31, and a turning shaft 53 of the caster head 51 is inserted into the counterbore hole 32 from below, and the turning shaft 53 is fastened to the base 31 by a second fastening member 42 from above. Yes. The turning shaft 53 is provided with a flange portion 54, and the position of the turning shaft 53 is regulated by the flange portion 54 coming into contact with the base 31.

  The swivel shaft 53 extends substantially vertically from the case 21 on the main body side via the base 31. Since the caster 50 is provided so as to be able to turn on a turning shaft 53 extending vertically from the bottom 23 of the case 21, the direction of the caster 50 can be changed according to the traveling direction of the basket 10.

  The caster 50 includes a turning shaft 53 provided on the base 31, a caster head 51 provided on the turning shaft 53 so as to be turnable, a buffer mechanism 61 provided integrally with the caster head 51, and the buffer mechanism 61. The inner diameter support mechanism 71 is provided so as to be vertically movable, and the wheel 52 is rotatably supported by the inner diameter support mechanism 71.

  A swivel shaft 53 is inserted into the caster head 51, and a third fastening member 55 is fastened to the swivel shaft 53 from below the caster head 51. For example, the third fastening member 55 is a bolt, and the caster head 51 is rotatably supported on the turning shaft 53 by making the head of the bolt larger than the diameter of the turning shaft 53.

  In addition, in the Example, although the 3rd fastening member 55 was used as the volt | bolt, it is not limited to this, You may use a pin. Further, a claw may be provided at the lower end portion of the turning shaft 53 and the claw may be locked to the lower end of the caster head 51.

  As shown in FIGS. 4 and 5, the buffer mechanism 61 is provided integrally with the caster head 51 and opens downward, and is provided so as to penetrate the upper wall 63 of the cylinder portion 62 in the axial direction. A supporting shaft 64 that extends, and a cylindrical piston 65 that is slidably provided inside the cylinder portion 62 and through which the supporting shaft 64 is inserted.

  In the cylinder part 62, an elastic member 66 that biases the piston 65 downward is provided between the upper wall of the cylinder part 62 and the upper end of the piston 65. A fourth fastening member 67 is fastened to the lower end of the support shaft 64. For example, the fourth fastening member 67 is a bolt, and the head of the bolt is set larger than the diameter of the support shaft 64. For this reason, the downward movement of the cylindrical piston 65 is restricted by the fourth fastening member 67.

  In addition, in the Example, although the 4th fastening member 67 was used as the volt | bolt, it is not limited to this, You may use a pin. Further, a claw may be provided at the lower end portion of the support shaft 64 and the claw may be locked to the lower end of the piston 65.

  The impact from the cylindrical piston wheel 52 is alleviated by the elastic member 66. Further, since the cylindrical piston 65 is guided by two members of the cylinder portion 62 and the support shaft 64, even if the piston 65 slides, it is stably supported without rattling. As a result, the piston 65 can be smoothly slid to reduce the impact, and the wheel 52 can be firmly supported.

  Thus, since the caster 50 is provided with the buffer mechanism 61 that reduces the impact and biases the wheel 52 to the initial position, the impact from the wheel 52 can be reduced and vibration and noise can be reduced.

  As shown in FIGS. 5 and 6, the inner diameter support mechanism 71 is provided at the upper arm 73 and the lower arm 74 extending from the piston 65 of the buffer mechanism 61, and at the tips of the upper and lower arms 73 and 74. And an annular support portion 75 formed annularly on the inner diameter side of the wheel 52, and a rolling element 76 provided on the outer diameter side of the annular support portion 75 to rotatably support the wheel 52. The inner diameter support mechanism 71 has a symmetrical configuration with the piston 65 as the center.

  By supporting the inner diameter side of the wheel 52 with the upper and lower arms 73 and 74, the hollow wheel 52 having a hollow shape in a side view can be configured simply. Further, the appearance of the caster can be improved by combining the upper and lower arms 73 and 74 with hollow hollow wheels.

  The annular support portion 75 includes an inner regulating wall 77 that restricts the wheel 52 and the rolling element 76 from moving inward in the axial direction, and a rolling element recess 78 that houses the rolling element 76. A wheel cap 79 that restricts the wheel 52 and the rolling element 76 from moving outward in the axial direction is provided outside the annular support portion 75 in the axial direction. The wheel cap 79 is attached to the annular support portion 75 by a fifth fastening member 81. It is concluded.

  The wheel cap 79 includes an inner diameter cylindrical portion 79a that fits into the inner diameter of the annular support portion 75, and a restriction flange portion 79b that extends in the radial direction of the wheel 52 from one end of the inner diameter cylindrical portion 79a. The wheel 52 includes an annular wheel 56 disposed on the outer diameter side of the rolling element 76 and a tire 57 fitted on the outer diameter side of the wheel 56. A convex fitting portion 56a is provided on the outer diameter side of the wheel 56, and a tire 57 is fitted to the fitting portion 56a.

  A gap 82 is formed between the base end portion of the upper arm 73 and the lower end of the piston 65. For this reason, the piston 65 can be raised until the base end portion of the upper arm 73 comes into contact with the lower end of the piston 65 or until the elastic member 66 is completely compressed.

  As described above, the caster 50 includes the inner diameter support mechanism 71 that supports the wheel 52 having the penetrating portion 72 and the buffer mechanism 61 that reduces the impact from the wheel 52 having the penetrating portion 72. As a result, it is possible to provide the bag 10 provided with the casters 50 that can alleviate the impact from the wheels 52 and improve the appearance.

Next, the operation of the caster 50 described above will be described.
FIG. 7A is a diagram in which the position of the piston 65 is at the lower end, and a gap 82 is formed in the vertical direction between the base end portion of the upper arm 73 and the lower end of the cylinder portion 62. . When the wheel 52 rides on the convex portion 92 while moving on the road surface 91, the cylindrical piston 65 rises as indicated by the arrow (1).

  FIG. 7B is a diagram showing a state in which the piston 65 is lifted. When the piston 65 is lifted, the elastic member 66 is contracted to reduce the impact from the wheel 52. The vertical position of the caster head 51 is not substantially changed, and the impact on the case 21 is also reduced. As a result, the vibration and noise of the kite 10 can be reduced.

Next, another aspect of the inner diameter support mechanism 71 shown in FIG. 5 will be described.
As shown in FIG. 8, the inner diameter support mechanism 71 includes an upper arm 73 and a lower arm 74 extending from the piston 65 of the buffer mechanism 61, and wheels 52 provided at the tips of these upper and lower arms 73, 74. An annular support portion 75 that is formed in an annular shape on the inner diameter side thereof, and a bearing 83 that is provided on the outer diameter side of the annular support portion 75 and rotatably supports the wheel 52.

  Since the bearing 83 is a general bearing 83 including an inner ring, a rolling element, and an outer ring, the component cost can be reduced. Further, an inner ring of the bearing 83 is provided on the outer diameter side of the annular support portion 75, and a wheel 56 is provided on the outer ring of the bearing 83. Since a general bearing 83 is used, the assembly becomes easy and the number of assembling steps can be reduced.

  In addition, although the Example demonstrated the caster 50 provided in the case 21 of the main body side, the caster 50 provided in the case 22 of the lid | cover 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 ... Main body side case 22 ... Lid side case 23 ... Bottom 50 ... Caster 51 ... Caster head 52 ... Wheel 53 ... Rotating shaft 61 ... Buffer mechanism 62 ... Cylinder part 63 ... Upper wall 64 ... Support shaft 65 ... Piston 66 ... Elastic member 71 ... Inner diameter support mechanism 72 ... Penetration part 73 ... Upper arm 74 ... Lower arm 75 ... Ring support part 76 ... Rolling element 83 ... Bearing D1 ... Dimensions of penetration part D2 ... Wheel outer diameter

Claims (6)

A bag made up of a case for storing articles and a caster attached to the case,
The caster is provided with a caster head extending from the case, a buffer mechanism provided on the caster head to reduce impact and biasing the wheel to an initial position, and the buffer mechanism provided to be movable in the biasing direction. An inner diameter support mechanism for supporting the inner diameter side of the wheel, and the wheel rotatably supported by the inner diameter support mechanism,
A shaft having a through-hole penetrating in the rotation axis direction is formed on the rotation center side of the inner diameter support mechanism.   The bag according to claim 1, wherein a maximum dimension of the penetrating portion in a side view of the wheel is not less than 1/3 of an outer diameter of the wheel.   The scissor according to claim 1 or 2, wherein the caster is pivotably provided on a pivot shaft extending vertically from the bottom of the case.   The shock absorbing mechanism is provided on the caster head and is opened downward, a support shaft extending in an axial direction from the upper wall of the cylinder portion, and a part of the shock absorber is slidably provided inside the cylinder portion. The cylindrical piston into which the said support shaft is penetrated, The elastic member arrange | positioned between the upper wall of the said cylinder part, and the upper end of the said piston can be provided, The Claims 1-3 characterized by the above-mentioned. Any one of the above items.   The inner diameter support mechanism includes an arm extending from the buffer mechanism, an annular support portion provided on the arm and formed annularly on the inner diameter side of the wheel, and an outer diameter side of the annular support portion provided to rotate the wheel. The scissors according to any one of claims 1 to 4, further comprising a rolling element that can be supported.   The inner diameter support mechanism includes an arm extending from the buffer mechanism, an annular support portion provided on the arm and formed annularly on the inner diameter side of the wheel, and an outer diameter side of the annular support portion provided to rotate the wheel. The scissors according to any one of claims 1 to 4, further comprising a bearing that can be supported.

Images