JP5832226B2 - Coffin with casters - Google Patents

Description

  The present invention relates to a bag having a caster provided with a caster on the bottom and a telescopic support column with a grip on the upper end.

  Casters with casters equipped with pullable handles have already been developed and used a lot. Many types of kites with this structure are of a size that can be brought into an aircraft, or that are slightly larger. For example, U.S. Pat. No. 4,995,487 (Patent Document 1), Japanese Patent Publication No. 4-76686 (Patent Document 2), Japanese Utility Model Publication No. 57-179824 (Patent Document 3), and Japanese Utility Model 63-131634 (Patent Document 4). The scissors described in these publications are provided with two casters 96 on one side of the bottom as shown in FIG. A short leg 98 is fixed to the opposite side of the caster 96. When the heel is raised vertically, the casters 96 and the legs 98 come into contact with the floor. In this state, the leg 98 that does not rotate contacts, so that the heel does not move but stands vertically. Furthermore, a handle 97 is provided so that it can be pulled out to the upper surface in order to pull and move the bag. The handle 97 is provided on the same side as the caster 96 because the handle 97 is pulled and moved while the heel is inclined.

  As shown in FIG. 1, the bag having this structure can be moved by tilting the bag and pulling the handle 97. When the heel is tilted, the caster 96 contacts the floor and the legs 98 move away from the floor. When the handle 97 is pulled in this state, the caster 96 rotates and can be moved easily. However, the heel that is moved in this way has a drawback that the heel cannot be moved while applying weight like a wand. This is because the heel cannot be moved in a vertical posture. The user may need to move a heavy bag without placing a strain on the waist. In particular, when it is necessary to move a heavy heel in a state where the waist hurts, the heel shown in FIG. 1 cannot be moved while being used instead of a wand.

  The present inventor has developed a bag having a structure shown in FIG. 2 in order to eliminate such a drawback (see Patent Document 5). The bag in this figure has casters 86 connected to both sides of the bottom of the bag portion. The casters 86 are provided at the four corners of the bottom surface so that the bag portion 81 can stand independently in a vertical posture. The handle 87 fixes the telescopic support 85 to one side of the bag part 81, and a grip 84 is fixed to the upper end thereof. In order to position the grip 84 in the middle of both sides of the bag part 81 in a state where the telescopic support 85 is extended upward and the grip 84 at the upper end is disposed above the bag part 81, the extendable support 85 is curved. A wrinkle of this structure can move while putting a weight on the grip 84 in a self-supporting posture, that is, while applying a vertical load to the grip 84. This is because the vertical load acting on the grip 84 acts between the casters 86 on both sides and can move while holding the heel in a self-supporting posture. Accordingly, the bag can be moved while the weight of the bag 81 or a heavy article housed in the bag 81 does not act on the grip 84, and the grip 84 is applied to the grip 84. Can move easily.

US Pat. No. 4,995,487 Japanese Examined Patent Publication No. 4-76686 Japanese Utility Model Publication No. 57-179824 Japanese Utility Model Publication No. 63-131634 Japanese Patent Laid-Open No. 10-137022

  This type of bag has a feature that all users, that is, elderly users and women who are difficult to carry heavy luggage, that is, all users of both young and old can easily move by pressing a heavy bag. In most of the usage conditions, this type of kite can be moved by a caster while standing in a vertical position, but cannot be moved by a caster in all usage conditions, for example, when going up and down stairs, over a step, or on a caster. On uneven road surfaces that cannot be moved, it is necessary to lift and move the eaves. For this reason, it is important to lighten the bag. However, this heel does not move by pulling the user like the heel shown in FIG. 1, but the user may move while putting his / her weight on the grip. There is. For this reason, there exists a fault which a telescopic support | pillar becomes thick and heavy, and the weight of the whole cage | basket becomes heavy.

  Further, the bag shown in FIG. 2 has two telescopic struts 85 fixed in parallel on one side of the bag portion 81 and the upper ends of these telescopic struts 85 are connected by a grip 84. The upper part can be reinforced with a frame shape, and the load resistance of the telescopic support 85 can be increased. However, the handle 87 of this structure can increase the load resistance in the direction parallel to the grip 84 connecting the two telescopic struts 85 (the direction indicated by the arrow X in the figure), but the two telescopic struts 85 are fixed. The load resistance in the direction intersecting the side surface 81X of the bag portion 81 to be performed (the direction indicated by the arrow Y in the figure) cannot be increased. The handle 87 desirably increases the load resistance in all directions while lightening the telescopic support column 85.

  The present invention was further developed to solve this drawback. An important object of the present invention is that the user can easily lift and move the heel so that the user can easily lift and move the weight. It is very easy to store heavy luggage, especially without any burden on the user's waist, and to provide a bag that allows all users of young and old to move heavy luggage in various usage situations. is there.

Means for Solving the Problems and Effects of the Invention

  A bag having casters includes a bag part 1, casters 6 provided at four positions on both sides of the bottom surface of the bag part 1 to run the bag part 1 independently, and a handle 7 connected to one side of the bag part 1. It has. The handle 7 connects a plurality of telescopic struts 5 that can be expanded and contracted vertically to one side of the bag portion 1 in a parallel posture at a predetermined interval, and fixes the grip 4 to the upper end of the telescopic struts 5. The bag supports the bag portion 1 in a self-supporting state with the casters 6. The telescopic support column 5 is a hollow pipe, and includes a fixed pipe 5B fixed to the bag portion 1 and an expandable pipe 5A inserted into the fixed pipe 5B so as to expand and contract. The telescopic pipe 5A has a thickness (dy) of the horizontal portion 5Ay orthogonal to the vertical portion 5Ax rather than the thickness (dx) of the vertical portion 5Ax parallel to the both side surfaces 1X of the bag portion 1.

  The bag can be moved by pushing the heavy load very easily while the user puts a strong weight on the grip of the handle. In particular, it is possible to move easily by pushing a bag with heavy luggage and moving it with less burden on the user's waist than when the bag is not used. This is because the weight above the waist can be pushed and moved while being applied to the grip of the hand. Furthermore, it is possible to lighten the heel while increasing the load resistance of the grip, and to lift and move easily. For this reason, all users, young and old, can move very easily in a variety of usage conditions. The handle of this bag is a handle in which a plurality of telescopic struts are connected to one side of the bag portion in a parallel posture at a predetermined interval, and a grip is fixed to the upper end of the telescopic strut, and a grip is provided at the upper end. This is because the thickness of the horizontal portion perpendicular to the vertical portion is larger than the thickness of the vertical portion parallel to both side surfaces of the bag portion.

  The expansion pipe having the above structure is subjected to bending stress in a state where a load is applied to the grip at the upper end. This bending stress includes a bending stress due to a longitudinal load acting in a direction parallel to the grip and a bending stress due to a lateral load acting in a direction parallel to both sides of the lateral portion of the expandable pipe. The handle having the above structure connects a plurality of telescopic struts to the bag portion in a parallel posture at a predetermined interval, and further, the grip is fixed to the upper end of the telescopic strut, so that it acts in a direction parallel to the grip. Extremely strong strength against vertical weight. In addition, because the expansion pipe has a greater thickness at the horizontal part than at the vertical part, it is extremely strong against bending stress caused by lateral load acting in a direction parallel to both sides of the expansion pipe. And prevents the lateral portion of the expansion pipe from bending due to the lateral load of the grip. Therefore, the handle of this structure increases the load resistance against the load in all directions acting on the grip, and effectively prevents the expansion pipe from bending. Furthermore, since the above-mentioned ridges make the thickness of the horizontal part of the expansion and contraction pipe thicker than the vertical part and remarkably improve the strength against bending stress, the vertical part can be made thin. For this reason, an increase in the weight of the expansion / contraction pipe can be limited by the thin vertical portion, or the expansion / contraction pipe can be hardly bent with respect to a vertical load with a large grip while making the expansion / contraction pipe lighter. In addition, while making the telescopic pipe lighter and lightening the entire bag, it realizes a tough structure that will not bend even if a large vertical load is applied to the grip. Therefore, the user can easily lift and carry the vehicle with a light bag, and can realize an extremely excellent operation and effect that the user can easily move a heavy load by placing a weight on the grip and lightly pushing it.

In the bag having the casters of the present invention, the thickness of the horizontal portion 5By perpendicular to the vertical portion 5Bx is larger than the thickness (Dx) of the vertical portion 5Bx in which the fixed pipe 5B is parallel to the both side surfaces 1X of the bag portion 1 ( Dy) can be increased.
The above heels can improve the bending strength while lightening not only the telescopic pipes but also the fixed pipes, so while making the weight of the whole heel lighter, applying a large vertical load to the grip, that is, putting the weight on the grip You can move very easily.

  In the bag having casters of the present invention, the telescopic strut 5 is curved or inclined so that the grip 4 at the upper end is unevenly distributed from one side of the bag part 1 to the center part, and the vertical load acting on the grip 4 is applied to the bag part 1. It can act on the middle of the casters 6 provided on both sides.

  In the bag having the caster of the present invention, the telescopic support column 5 can be formed in a rectangular tube shape.

  The bag having casters according to the present invention includes a bag unit 1 having a bag body 3 and a base frame 2 formed by connecting the bag body 3 to the upper side. A caster 6 and a fixing pipe 5B are attached to the base frame 2. Can be fixed.

  In the bag having the caster of the present invention, the handle 7 includes a stopper 15 for stopping the grip 4 at the upper end of the extended telescopic column 5 at a fixed position, and the telescopic column 5 is extended and stopped by the stopper 15. Thus, the height from the lower end of the caster 6 to the grip 4 can be set to 60 to 100 cm.

It is a perspective view which shows the scissors which have the conventional caster. It is a perspective view of the bag which has the caster which this inventor developed previously. It is a perspective view of the bag which has the caster concerning one Example of this invention. It is a perspective view of the bag which has the caster concerning the other Example of this invention. It is a perspective view of the bag which has the caster concerning the other Example of this invention. It is a perspective view of the bag which has the caster concerning the other Example of this invention. It is a perspective view of the bag which has the caster concerning the other Example of this invention. It is a disassembled perspective view of the bag which has a caster shown in FIG. It is a front view of the bag which has a caster shown in FIG. It is a front view of the bag which has the caster concerning the other Example of this invention. It is a perspective view of the bag which has the caster concerning the other Example of this invention. It is a disassembled perspective view of the bag which has a caster shown in FIG. It is a perspective view of the bag which has the caster concerning the other Example of this invention. It is a perspective view which shows the other use condition of the bag which has a caster shown in FIG. It is a partially expanded schematic plan view of a bag having a caster according to an embodiment of the present invention. It is an expanded sectional view which shows an example of the stopper of an expansion-contraction support | pillar. It is an expanded sectional view which shows the state which cancelled | released the 2nd stopper of the expansion-contraction support | pillar shown in FIG. FIG. 17 is an enlarged cross-sectional view illustrating a state in which the first stopper of the telescopic column illustrated in FIG. 16 is released.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiment described below exemplifies a bag having casters for embodying the technical idea of the present invention, and the present invention does not specify the bag having casters as the following. Further, in this specification, in order to facilitate understanding of the scope of claims, numbers corresponding to the members shown in the embodiments are indicated in the “claims” and “means for solving problems” sections. It is appended to the members shown. However, the members shown in the claims are not limited to the members in the embodiments. In particular, the dimensions, materials, shapes, relative arrangements, and the like of the component parts described in the embodiments are not intended to limit the scope of the present invention unless otherwise specified, and are merely explanations. It is just an example. Note that the size, positional relationship, and the like of the members shown in each drawing may be exaggerated for clarity of explanation. Furthermore, in the following description, the same name and symbol indicate the same or the same members, and detailed description thereof will be omitted as appropriate. Furthermore, each element constituting the present invention may be configured such that a plurality of elements are constituted by the same member and the plurality of elements are shared by one member, and conversely, the function of one member is constituted by a plurality of members. It can also be realized by sharing. In addition, the contents described in some examples and embodiments may be used in other examples and embodiments.

  A bag having casters shown in FIGS. 3 to 14 includes a bag part 1, casters 6 that are provided at four locations on both sides of the bottom surface of the bag part 1 and run the bag part 1 independently, and one side of the bag part 1. And a handle 7 connected to the. The handle 7 connects a plurality of telescopic struts 5 that can be expanded and contracted vertically to one side of the bag portion 1 in a parallel posture at a predetermined interval, and fixes the grip 4 to the upper end of the telescopic struts 5. The handle 7 is disposed so that the grip 4 at the upper end is located in a region extending from the upper side of one side of the bag part 1 to the upper side of the central part in a state where the telescopic support column 5 is extended. A load is applied to the casters 6 provided on both sides of the bag portion 1 so that the bag portion 1 is supported by the casters 6 in a self-supporting state.

  The cage shown in FIGS. 3 to 14 is provided with casters 6 at the four corners of the bottom surface of the bag portion 14. The casters 6 provided at the four corners of the bottom surface of the bag portion 1 are swing-type casters that can run in any direction. These bags can be moved in a free direction by pushing the handle 7 or pulling the handle 7 in a state where the bag portion 1 is self-supported by the casters 6 at the four corners.

  In the bag shown in FIGS. 3 to 6, casters 6 are fixed to four corners of the bottom surface of the bag body 3 that is the bag unit 1, and a handle 7 is fixed to one side of the bag body 3. Further, in the bag shown in FIGS. 7 to 14, the bag portion 1 is constituted by a bag body 3 and a base frame 2 connecting the bag body 3 on the upper side. The handle 7 is fixed. 7 to 14 are attached to the base frame 2 so that the main body 3 can be attached and detached. This kite has the feature that the kite body 3 can be easily replaced. However, the bag body can be fixed to the base frame so that it cannot be removed.

  The main body 3 includes a hard material having sufficient strength, for example, a hard plastic such as ABS resin, a fiber material formed by curing and bonding with a binder, a water-resistant hard paper surface coated with a paint, aluminum Or a soft material such as a flexible sheet, or a combination of these. The bag body made of a flexible sheet can be shaped by arranging a reinforcing frame material on the inside. However, it is not always necessary to reinforce the bag body made of a soft material such as a flexible sheet with a reinforcing agent, and the entire bag can have a flexible structure. This bag body is used by being connected to a base frame, for example.

  The bag main body 3 shown in FIGS. 3 to 5 and FIGS. 7 to 10 includes a main body 3A and a lid 3B. The lid 3B is connected to the main body 3A so that it can be opened and closed. Since the handle body 3 shown in these drawings has a handle 7 disposed on one side surface, a lid 3B is provided so that it can be opened and closed on one surface of the body portion 3 on the side where the handle 7 is not disposed. The bag main body 3 can be conveniently used by providing a pocket on the surface of the main body 3A or the lid 3B. 6 is divided into a first case 3C and a second case 3D in the middle of both sides (left and right in the drawing), and the first case 3C and the second case 3D can be opened and closed. They are connected.

  7 to 12 has a structure that can be attached to and detached from the base frame 2. The bag main body 3 in these figures has a structure in which a strip-shaped connecting piece 3R provided on the bag main body 3 is inserted and connected to a slit-shaped connecting portion 2R provided on the base frame 2 so as to be detachable. . The connecting piece 3R is provided with a connecting mechanism such as a magic tape (registered trademark), a button, a hook, or a hook, and can be easily attached and detached. A belt, a band, a ring, a hook, or the like can be used for the connection structure of the main body and the base frame.

  Furthermore, the bag main body 3 shown in FIGS. 13 and 14 is manufactured in a bag shape by sewing a flexible sheet. As shown in the figure, the heel body 3 has an insertion band 3S that is open in the vertical direction on one side surface 1X. In this saddle body 3, the handle 7 is inserted from below the opening of the insertion band 3 </ b> S, and the upper part of the handle 7 is pulled out above the opening to allow the telescopic support 5 to be inserted into the insertion band 3 </ b> S. Thereby, the bag main body 3 can be connected to the fixed position of the base frame 2 as the state mounted in the upper surface of the base frame 2. As shown in FIG. Further, when the heel body 3 is detached from the base frame 2, it is realized by raising the heel body 3 and releasing the handle 7 inserted through the insertion band 3S. As described above, the handle 7 fixed to the base frame 2 has a connecting structure in which the handle 7 is inserted into the insertion portion 3 </ b> S of the heel body 3, so that the heel body 3 and the base frame 2 can be easily attached and detached.

  The handle 7 includes a pair of telescopic struts 5 that extend upward from one side of the bag portion 1 and are self-supporting and extendable in the vertical direction. The handle 7 has two telescopic struts 5 connected to the bag portion 1 in a parallel posture at a predetermined interval, and the grip 4 is fixed to the upper ends of the two telescopic struts 5. The handle 7 in the figure includes two telescopic struts 5. However, the handle can also connect three or more telescopic struts to the bag portion in a parallel posture at a predetermined interval. The telescopic support column 5 is a hollow pipe, and is composed of a fixed pipe 5B fixed to the bag portion 1 and an expandable pipe 5A inserted so as to be able to expand and contract on the fixed pipe 5B. Further, as will be described in detail later, the handle 7 includes a stopper that stops the telescopic support column 5 that expands and contracts at the extended position.

  The handle 7 is connected to the bag portion 1. 3 to 6, the handle 7 shown in FIGS. 3 to 6 is provided with a fixed pipe 5B inside the bag body 3 so that the grip 4 can be stored in the bag body 3 so that the telescopic column 5 is retracted. It is arranged on the upper surface of the main body 3. In particular, the heel body 3 shown in the figure has an insertion recess 14 provided on the upper surface of the heel body 3 so that the grip 4 of the stored handle 7 can be easily grasped, and the grip 4 is stored in the insertion recess 14. ing.

  Furthermore, the handle 7 shown in FIGS. 7 to 14 is fixed to one side of the base frame 2 in a self-supporting posture. The base frame 2 shown in these figures is manufactured by integrally molding the whole with a light metal such as plastic or aluminum. The base frame 2 is provided with casters 6 at the four corners of the lower surface, the saddle body 3 is placed on the upper surface, and a fixed pipe 5B is fixed on the upper surface on one side so as to be self-supporting. As described above, the structure in which the telescopic support 5 is disposed on one side of the base plate has the advantage that the bottom surface of the collar body 3 placed on the base plate can be widened because the collar body 3 can be disposed on almost the entire upper surface of the base plate 2. The scissors in these figures are the top surface of the base frame 2, and the scissors main body 3 is disposed adjacent to the telescopic support columns 5.

  The base frame 2 shown in FIG. 7 to FIG. 14 has a rectangular planar shape, and a pair of telescopic columns 5 are fixed to the side portion that is the long side of the rectangle. These base frames 2 are integrally formed with a support cylinder 8 that is inserted through and connected to a telescopic support column 5. The base frame 2 shown in the figure is provided with two support cylinders 8 on the side, and the support cylinders 8 are inserted through and connected to the support columns 5. The base frame 2 shown in the figure is formed by integrally connecting a reinforcement wall 9 to a pair of support cylinders 8, and the expansion / contraction column 5 fixed to the support cylinder 8 is reinforced by the reinforcement walls 9.

  The base frame 2 shown in FIGS. 7 to 10 is provided with a pair of indicating cylinders 10 at the center of the side which is the long side of the rectangle, and the support cylinders 8 support the telescopic columns 5. In the illustrated base frame 2, a support cylinder 8 is provided so as to protrude from the upper and lower surfaces, and a reinforcing wall 9 is formed integrally with a protruding portion 8 </ b> A protruding from the lower surface. The reinforcing wall 9 is connected to the support cylinder 8 and the lower surface of the base plate 2. The reinforcing wall 9 is provided by effectively using the space between the casters 6 which can be obtained by providing the casters 6 on the lower surfaces of the four corners of the base plate 2. Furthermore, the base frame 2 is provided with a support cylinder 8 and a reinforcing wall 9 by effectively utilizing the space that can be lifted by the casters 6 and formed on the lower surface.

  The base frame 2 shown in FIG. 11 to FIG. 14 is provided with a pair of support cylinders 8 at the corners which are both ends of the side part which is the long side of the rectangle. Yes. In the base frame 2 of FIGS. 11 and 12, the support cylinder 8 to which the telescopic support column 5 is fixed is reinforced by the reinforcing wall 9. The reinforcing walls 9 are provided along both end edges of the base plate 2. The base frame 2 is configured as a bag portion 1 by attaching a bag main body 3 to a portion surrounded by a telescopic support column 5 and a reinforcing wall 9. The base frame 2 shown in FIGS. 13 and 14 has a reinforcing wall 8 connecting the support cylinder 8 and the base frame 2 between the pair of support cylinders 8 at the rising portion of the support cylinder 8 protruding upward from the upper surface. Provided. The reinforcing wall 9 shown in the figure has a triangular shape so that the support cylinder 8 and the base plate 2 can be integrally connected and reinforced. However, the reinforcing wall can have various shapes. Further, the base frame 2 shown in the figure provides a reinforcing base 10 that protrudes in the thickness direction of the reinforcing wall 9 at the rising portion of the supporting cylinder 8 to reinforce the supporting cylinder 8 more firmly.

  The handle 7 is pulled upward when the bag is moved by the caster 6. When the bag is not moved by the caster 6, the handle 7 is contracted and pushed. The grip 4 of the handle 7 is connected to the bag portion 1 via a telescopic column 5 so as to be telescopic. The bag handle 7 shown in FIGS. 3 to 14 is arranged on one side (right side in the figure) of the bag portion 1, and the grip 4 on the upper end is attached to the one side of the bag portion 1 in a state where the telescopic support column 5 is extended. It arrange | positions so that it may be located in the area | region from upper direction to the upper direction of a center part.

  In the bag shown in FIG. 3, when the handle 7 is extended and pulled up, the grip 4 at the upper end of the telescopic support column 5 is moved vertically upward so as to be positioned above one side of the bag portion 1. 3 has a telescopic support column 5 fixed to the right side of the bag portion 1, so that when the handle 7 is pulled up, the grip 4 moves upward on the right side of the bag portion 1. The handle 7 fixes a linear stretchable column 5 to one side of the bag portion 1 in a vertical posture so that the grip 4 can be pulled up. The position of the lifted grip 4 is in the middle of the casters 6 disposed on the front and rear of one side of the bag portion 1 on which the telescopic support columns 5 are disposed, and is on a line connecting these casters 6. . However, the position of the grip to be pulled up can be inside or outside the line connecting the casters arranged on one side of the bag portion to which the telescopic column is fixed. In addition, the handle is not necessarily limited to a structure in which the grip is moved vertically upward, and the grip may be moved while being slightly inclined or curved inward from the side surface of the bag portion or inclined or curved outward. it can.

  4 to 14 is configured such that when the handle 7 is extended and pulled up, the grip 4 at the upper end of the telescopic support column 5 moves from one side toward the center. As shown in the figure, when the telescopic strut 5 is fixed to one side of the bag part 1, the center of the bag part 1 is between both side surfaces 1X of the bag part 1 and means the center in the left-right direction. To do.

  The handle 7 shown in FIGS. 4, 6 to 9, and 11 to 14 moves the grip 4 from one side of the bag portion 1 toward the center when the grip 4 is pulled up and the telescopic support 5 is extended. The telescopic support 5 is curved so that The hooks in these figures fix the telescopic support column 5 to the right side of the bag portion 1, so that when the handle 7 is pulled up, the telescopic support column is moved so that the grip 4 moves from the right side to the left side of the bag unit 1. 5 is curved. In other words, the telescopic strut 5 is curved in a direction in which the central portion protrudes outward, and the lifted grip 4 is moved from the side portion of the bag portion 1 in a direction approaching the center.

  Furthermore, the handle 7 in FIGS. 5 and 10 tilts the telescopic support column 5 so that when the grip 4 is pulled up and the telescopic column 5 is extended, the grip 4 is moved from one side of the bag portion 1 toward the center. ing. 4 and 9 has the telescopic support column 5 fixed to the right side of the bag portion 1, so that the telescopic support column 5 is inclined so that the grip 4 to be lifted moves from the right side to the left side of the bag unit 1. I am letting.

  As described above, the handle 7 that is bent so that the telescopic support 5 is positioned so that the grip 4 at the upper end is located at the center of the bag portion 1 or is inclined in the direction that positions the grip 4 at the center of the bag portion 1 Since the grip 4 is located at the center of the bag portion 13 in a state where the bag is pulled up, there is a feature that the grip 4 can be gripped and the bag can be moved smoothly. However, the handle does not necessarily have to be positioned at the center of the bag portion with the grip pulled up. This is because even if the grip is not completely centered, it can be moved forward so as not to bend the heel by pushing the grip. As shown in FIG. 15, the lifted grip 4 is positioned between the casters 6 disposed on both sides of the bottom surface of the bag portion 1 in which the telescopic struts 5 are disposed on one side and on one side portion. The line connecting the casters 6 provided (indicated by the alternate long and short dash line A in FIG. 15) is the reference 0 point, and the line connecting the casters 6 provided on the opposite side (indicated by the alternate long and short dash line B in FIG. 15) is 100. Thus, for example, the position is 15 to 80, preferably 20 to 60, and more preferably 25 to 50.

  Furthermore, although not shown, the bag can be moved from one side of the bag portion toward the center by tilting the curving telescopic strut and fixing it to one side of the bag portion, pulling up the grip. This bag can increase the radius of curvature to bend and can be brought close to a right angle to raise the grip and approach the center of the bag portion. This is because the lifted grip 4 can be moved from the side of the bag portion 1 to the center by both inclining and bending.

  In the contracted state of the telescopic strut 5, in other words, when the grip 4 is pushed down most, the handle 7 is stopped by a stopper with the grip 4 positioned on one side of the bag portion 1 or above. The handle 7 is a position where the telescopic support column 5 is contracted to make the grip 4 the lowest, and the distance from the lower end of the caster 6 to the upper end of the grip 4 is about 50 cm. However, the handle 7 is a position where the telescopic support column 5 is contracted to make the grip 4 the lowest, and the distance from the lower end of the caster 6 to the upper end of the grip 4 is preferably 30 to 80 cm, more preferably 35 to 70 cm. You can also The bag portion 1 is made lower than the grip 4 so that the grip 4 can be easily gripped in a state where the telescopic support column 5 is contracted to make the grip 4 the lowest. Furthermore, the handle 7 has a height from the lower end of the caster 6 to the center of the grip 4 of 60 to 100 cm, preferably 65 to 85 cm when the telescopic column 5 is extended, in other words, when the grip 4 is pulled up to the highest. Stopped by the stopper at the position.

  The telescopic strut 5 is provided with a fixed pipe 5B arranged and fixed on one side of the bag portion 1 and a telescopic pipe 5A inserted so that it can be taken in and out of the fixed pipe 5B. The grip 4 is fixed to the upper end of the telescopic pipe 5A. 3 to 6 is on one side of the bag unit 1 and on one side of the bag body 3, and the bag shown in FIGS. 7 to 14 is on one side of the bag unit 1 and on the side of the base frame 2. The pair of fixed pipes 5B are fixed. The fixed pipe 5B and the telescopic pipe 5A can be rectangular metal tubes having different thicknesses. However, the fixed pipe 5B and the telescopic pipe can also be manufactured by molding plastic into a rectangular tube shape.

As shown in a partially enlarged cross-sectional view of FIG. 15, the rectangular tubular expandable pipe 5 </ b> A is orthogonal to the vertical portion 5 </ b> Ax rather than the thickness (dx) of the vertical portion 5 </ b> Ax parallel to both side surfaces 1 </ b> X of the bag portion 1. The thickness (dy) of the horizontal portion 5Ay is increased. Here, the both side surfaces 1X of the bag portion 1 are one side of the bag portion 1 and the side surface 1X (the right side surface in FIG. 15) on the side where the handle 7 is arranged, and the opposite side surface 1X (FIG. 15). In the left side). That is, as shown in the figure, in the bag portion 1 having a rectangular planar shape, the surface corresponding to the long side of the rectangle is the side surface 1X. In this way, the expandable pipe 5A that makes the thickness (dy) of the horizontal portion 5Ay thicker than the thickness (dx) of the vertical portion 5Ax is in a direction parallel to the opposing horizontal portion 5Ay (indicated by an arrow Y in the figure). It has an extremely strong strength against bending stress due to working lateral load, and effectively prevents the expansion pipe 5A from bending due to the lateral load acting on the grip 4. Further, the expansion pipe 5A can be reduced in weight by reducing the overall thickness (dx) of the vertical portion 5Ax rather than the thickness (dy) of the horizontal portion 5Ay. Here, the thickness (dy) of the horizontal portion 5Ay of the stretchable pipe 5A can be 1.5 to 5 times, preferably 1.5 to 3 times the thickness (dx) of the vertical portion 5Ax. .
Note that, in the partially enlarged sectional view of FIG. 15, in order to make the shapes of the expandable pipe 5 </ b> A and the fixed pipe 5 </ b> B easier to understand, a built-in stopper or the like is omitted.

  Further, in the telescopic support column 5 shown in the partially enlarged cross-sectional view of FIG. 15, the thickness of the vertical portion 5Bx and the horizontal portion 5By is also changed for the rectangular tubular fixed pipe 5B into which the expandable pipe 5A is inserted. In the illustrated fixed pipe 5B, the thickness (Dy) of the horizontal portion 5By orthogonal to the vertical portion 5Bx is thicker than the thickness (Dx) of the vertical portion 5Bx parallel to both side surfaces 1X of the bag portion 1. . As described above, the expansion / contraction column 5 that makes the thickness (Dy) of the horizontal portion 5By larger than the thickness (Dx) of the vertical portion 5Bx of the fixed pipe 5B also improves the bending strength against the lateral load while further reducing the overall thickness. Therefore, even if a large lateral load is applied to the grip 4 while reducing the weight of the entire bag, it is possible to effectively prevent the telescopic column 5 from bending. Here, the thickness (Dy) of the horizontal portion 5By of the fixed pipe 5B can also be 1.5 to 5 times, preferably 1.5 to 3 times the thickness (Dx) of the vertical portion 5Bx. .

  Here, the handle 7 shown in FIG. 3 to FIG. 14 connects the two telescopic struts 5 to the bag portion 1 in a parallel posture at a predetermined interval, and further grips the upper ends of the two telescopic struts 5 with the grip 4. It is connected with. The handle 7 having this structure can increase a load resistance against a longitudinal load acting in a direction parallel to the grip 4 (indicated by an arrow X in the figure). Since the upper ends of the two telescopic struts 5 are connected by the grip 4, even if the handle 7 receives a longitudinal load in a direction parallel to the grip 4, the connecting portion between the telescopic strut 5 and the grip 4 is predetermined. This is because the angle is maintained and deformation in the direction parallel to the grip 4 is prevented.

  Therefore, the handle 7 having the above structure has a structure in which two telescopic struts 5 are coupled to the bag portion 1 in a parallel posture at a predetermined interval, and the upper ends of the two telescopic struts 5 are coupled by the grip 4. As a result, it is possible to increase the load resistance to the vertical load acting in the direction parallel to the grip 4 (indicated by the arrow X in the figure), and for each of the telescopic struts 5, By making the thicknesses (dy) and (Dy) of the portions 5Ay and 5By thicker than the thicknesses (dx) and (Dx) of the vertical portions 5Ax and 5Bx, the direction parallel to the horizontal portions 5Ay and 5By, that is, the bag portion The load resistance to the lateral load acting in the direction intersecting with the side surface 1X of 1 (indicated by the arrow Y in the figure) can be increased, and the load resistance in all directions can be increased. In addition, the telescopic support column 5 has the thicknesses (dx) and (Dx) of the vertical portions 5Ax and 5Bx thinner than the thicknesses (dy) and (Dy) of the horizontal portions 5Ay and 5By of the telescopic pipe 5A and the fixed pipe 5B. This can reduce the overall weight and reduce the weight.

  The telescopic strut 5 shown in FIG. 15 changes the thickness of the vertical portion 5Bx and the horizontal portion 5By not only for the telescopic pipe 5A but also for the fixed pipe 5B. Without changing the wall thickness, only the telescopic pipe can be made thicker in the horizontal part than in the vertical part.

  The telescopic strut 5 shown in FIGS. 3 to 10, 13 and 14 includes a two-stage telescopic pipe 5A inserted so that it can be taken in and out of the fixed pipe 5B. The two-stage expansion pipe 5A is inserted so that the upper expansion pipe 5Aa is thinner than the lower expansion pipe 5Ab so that the upper expansion pipe 5Aa can be taken in and out of the lower expansion pipe 5Ab. Further, the telescopic support 5 is inserted so that the lower telescopic pipe 5Ab is thinner than the fixed pipe 5B and the lower telescopic pipe 5Ab can be taken in and out of the fixed pipe 5B. The telescopic struts 5 in these figures have a structure that can be expanded and contracted in two stages. Further, the telescopic strut 5 shown in FIGS. 11 and 12 includes a one-stage telescopic pipe 5A that can be taken in and out of the fixed pipe 5B, and has a one-stage telescopic structure. However, although not shown in the drawing, the expansion / contraction strut can be structured so that it can be expanded / contracted to four or more stages, with three or more expansion / contraction pipes to be taken in and out of the fixed pipe.

  In the bag shown in the above figures, two telescopic struts 5 are arranged on one side of the bag portion 1, and the grip 4 is connected to the upper ends of the two telescopic struts 5. As shown in FIGS. 7 to 14, the handle 7 connected to the base plate 2 connects the upper ends of the two fixed pipes 5 </ b> B with a connecting rod 11. In the handle 7 in these figures, the lower end of the fixed pipe 5B is fixed to the base plate 2 and the upper end portion is connected by the connecting rod 11. In this way, the structure in which the upper end of the fixed pipe 5B is connected by the connecting rod 11 can reinforce the two telescopic struts 5 and can stand more stably. Further, as shown by a chain line in FIG. 7, an insertion gap 12 for inserting a hand is provided between the grip 4 and the connecting rod 11 that are lowered most. This is to make it easier to grip the lowered grip 4. The grip 4 shown in the figure is made of plastic and formed into a U shape, and the bent portions at both ends are connected to the expansion pipe 5A to provide an insertion gap 12. In this way, the grip that is formed into a U-shape as a whole reinforces the connecting portion between the telescopic rod 5A and the grip 4 in a state where the grip is connected to the two telescopic rods 5A, and acts in a direction parallel to the grip 4. It is possible to further increase the load resistance against vertical load.

  The above handle 7 is stopped by the stopper in the extended state and the contracted state of the telescopic support column 5 to stop the grip 4 at a desired position. This stopper can use any mechanism that can stop the expansion and contraction of the telescopic support column 5. The stopper is preferably structured so that the handle can be stopped at an intermediate pulling position. This is because the handle including the stopper having this structure can stop the expansion and contraction of the expansion and contraction column while suitably selecting the position of the grip.

  An example of the stopper is shown in FIGS. The telescopic struts 5 shown in these drawings have a structure in which a two-stage telescopic pipe 5A can be expanded and contracted, and therefore have two stoppers 15 at the top and bottom. The first stopper 15A stops the expansion and contraction of the upper expansion pipe 5Aa and the lower expansion pipe 5Ab. The second stopper 15B stops the extension of the lower telescopic pipe 5Ab and the fixed pipe 5B. Further, the contraction of the lower telescopic pipe 5Ab and the fixed pipe 5B is stopped by the first stopper 15A.

  The first stopper 15A is provided at the lower end of the upper expansion pipe 5Aa and is provided on the lower expansion pipe 5Ab and the lower expansion pipe 5Ab. The locking part 17 into which 16 is inserted, and the 1st cancellation | release mechanism 18 which forcibly pulls out the protrusion pin 16 from the locking part 17 are provided. The second stopper 15B is disposed at the lower end of the lower telescopic pipe 5Ab, and is provided on the fixed pipe 5B with a protruding pin 36 that elastically protrudes toward the fixed pipe 5B, and the protruding pin 36 is inserted into the second stopper 15B. And a second release mechanism 38 that forcibly pulls out the protruding pin 36 from the locking portion 37.

  The protruding pin 16 is disposed inside the lower end portion of the upper expansion pipe 5Aa via an elastic member 19 so as to elastically protrude in the outer peripheral direction of the expansion pipe 5A. The protruding pin 36 is disposed inside the lower end of the lower expansion pipe 5Ab via an elastic member 39 so as to elastically protrude in the outer peripheral direction of the expansion pipe 5A. These protruding pins 16 and 36 are pressed by the elastic members 19 and 39 and elastically protrude from the telescopic pipe 5A. The projecting pins 16 and 36 are disposed on the telescopic pipe 5A so as to project in opposite directions. The telescopic support 5 shown in the figure has the protruding pin 16 protruding inward, that is, in the direction of the opposing telescopic support 5, and the protruding pin 36 is protruded outward, that is, in the direction opposite to the opposing telescopic support 5.

  The locking portions 17 and 37 are through holes or recesses into which the protruding pins 16 and 36 are inserted. The lower telescopic pipe 5Ab and the fixed pipe 5B shown in the drawing have through holes through which the projecting pins 16 and 36 are inserted to form locking portions 17 and 37, respectively. As described above, the structure having the locking portions 17 and 37 as the through holes has a feature that the projecting pins 16 and 36 inserted therein are projected through the through holes and the telescopic support column 5 can be surely stopped. . In particular, this can be used very safely when the body is supported as a posture to put weight on the grip 4 by using the telescopic support column 5 instead of the cane. This is because it is possible to effectively prevent the protruding pins 16 and 36 from being unexpectedly detached from the locking portions 17 and 37 and the telescopic support column 5 being pushed in. In addition, there is also a feature that the stretchable support 5 can be prevented from being pulled out unexpectedly when the entire bag is lifted with the grip 4. As described above, the stopper 15 that can reliably fix the position of the telescopic pipe 5A has an advantage that it can be used extremely safely even when the grip 4 is set to the raised position or the lowered position. However, the locking portion can be a recess into which the tip of the protruding pin is inserted.

  The stopper 15 in the figure having the engaging portions 17 and 37 as through holes is provided with an engaging portion 17 into which the protruding pin 16 is inserted and opened in the lateral portion 5Ay of the expansion / contraction pipe 5A, and the engaging pin 36 is inserted therein. The stop portion 37 is provided to open to the lateral portion 5By of the fixed pipe 5B. That is, the stopper 15 shown in the figure has the protruding pin 16 protruding in the direction penetrating the horizontal portion 5Ay of the telescopic pipe 5A and inserted into the locking portion 17, and the protruding pin 36 is connected to the horizontal portion 5By of the fixed pipe 5B. The structure is such that it protrudes in the penetrating direction and is inserted into the locking portion 37. Here, as shown in the partially enlarged cross-sectional view of FIG. 15, the telescopic support 5 shown in the figure has a thickness (dy) of the horizontal portion 5Ay of the expandable pipe 5A larger than a thickness (dx) of the vertical portion 5Ax. The thickness (Dy) of the horizontal portion 5By of the fixed pipe 5B is made thicker than the thickness (Dx) of the vertical portion 5Bx. For this reason, the engaging portions 17 and 37 which are through holes opened in the telescopic pipe 5A and the fixed pipe 5B are also formed thick. In this way, the structure of increasing the thickness of the locking portions 17 and 37 that are through-holes is the outer peripheral surface of the projecting pins 16 and 36 inserted therein and the open ends of the locking portions 17 and 37 that are through-holes. The area in contact with becomes larger. For this reason, in a state where the telescopic support column 5 is extended and the protruding pins 16 and 36 are inserted into the locking portions 17 and 37 and the grip 4 is put on a weight and a large load is applied, The pressure with which the open ends of the locking portions 17 and 37 press the outer peripheral surfaces of the projecting pins 16 and 36 can be reduced. Therefore, even when a large load is applied to the grip 4, this load effectively prevents the outer peripheral surfaces of the projecting pins 16 and 36 from being deformed by being pressed against the opening ends of the locking portions 17 and 37. Can be prevented.

  On the other hand, if the lateral part of the telescopic strut is not formed thick and the thickness of the locking part, which is a through hole, is thin as in the prior art, the outer peripheral surface of the protruding pin inserted here is The pressure that the open end presses increases. For this reason, in a state where a large load is applied to the grip, the outer peripheral surface of the protruding pin is strongly pressed against the opening end of the locking portion and may be deformed or damaged. Thus, when the outer peripheral surface of the projecting pin is deformed or damaged, the deformed part or the damaged part is caught by the opening end of the latching part in a state in which the stopper is operated and the projecting pin is put in and out of the latching part. As a result, there were problems such as the inability to smoothly put in and out. Therefore, as described above, the structure in which the lateral portions 5Ay and 5By of the telescopic support column 5 are formed thickly increases the thickness of the locking portions 17 and 37 provided through the lateral portions 5Ay and 5By. It is possible to effectively prevent the outer peripheral surfaces of the projecting pins 16 and 36 inserted into the stoppers 17 and 37 from being pressed against the opening ends of the locking portions 17 and 37, thereby causing deformation and damage. Further, the feature that the stopper 15 can be operated comfortably by putting it in and out of the locking portions 17 and 37 is also realized.

  Although not shown, the locking portion 17 provided in the lower expansion pipe 5Ab inserts the protruding pin 16 in a state where the upper expansion pipe 5Aa is pulled up most, a state where it is pulled up to the middle, and a state where it is lowered most. It is provided at a plurality of positions. When the upper expansion pipe 5Aa is pulled up most, the protruding pin 16 is inserted into the uppermost locking part 17, and when the upper expansion pipe 5Aa is moved down most, it protrudes into the lowermost locking part 17. In a state where the pin 16 is inserted and the upper expansion pipe 5Aa is pulled up to the middle, the protruding pin 16 is inserted into the intermediate locking portion 17 and the expansion and contraction of the upper expansion pipe 5Aa is stopped. As described above, the telescopic support column 5 provided with the locking portion 17 in the middle of the lower telescopic pipe 5Ab has a feature that the upper telescopic pipe 5Aa can be expanded and contracted in a plurality of stages. In particular, the telescopic column 5 provided with a plurality of locking portions 17 in the middle of the lower telescopic pipe 5Ab can stop the upper telescopic pipe 5Aa pulled up to the middle at a plurality of lifting positions, so that the position of the grip 4 is moved up and down little by little. There is a feature that allows you to select the optimal position. However, the upper telescopic pipe does not necessarily have a structure that can be stopped at the intermediate position, and can be stopped only at the raised position and the lowered position.

  The locking portion 37 provided in the fixed pipe 5B is provided at a position where the protruding pin 36 is inserted in a state where the lower expansion pipe 5Ab is pulled up most. In a state where the lower expansion pipe 5Ab is pulled up most, the protruding pin 36 is inserted into the locking portion 37, and the expansion of the lower expansion pipe 5Ab is stopped. Further, the fixed pipe can be provided with a plurality of locking portions at positions where the protruding pins are inserted in a state where the lower expansion pipe is pulled up to the middle. The telescopic strut 5 also has a feature that the lower telescopic pipe pulled up to the middle can be stopped at a plurality of pulling positions, so that the grip position can be moved up and down little by little to select the optimum position.

  Further, as shown in FIG. 17, the fixed pipe 5 </ b> B is provided with a locking portion 30 into which the protruding pin 16 is inserted in a state where the upper expansion pipe 5 </ b> Aa and the lower expansion pipe 5 </ b> Ab are lowered most. The locking portion 30 is provided at a position where the protruding pin 16 that penetrates the lowermost locking portion 17 of the lower expansion pipe 5Ab in the lowered position is inserted. That is, the telescopic strut 5 is connected to the latching portion 17 of the lower telescopic pipe 5Ab and the latching portion 30 inside the fixed pipe 5B with the upper telescopic pipe 5Aa and the lower telescopic pipe 5Ab lowered most. The protruding pin 16 is inserted to stop the telescopic support column 5 in the most contracted state. In this manner, the protruding pin 36 is inserted into the engaging portion 37 provided outside the fixed pipe 5B, and the extension of the lower telescopic pipe 5Ab is stopped, and the protruding portion 36 protrudes into the engaging portion 30 provided inside the fixed pipe 5B. The pin 16 is inserted, and the contraction of the lower expansion pipe 5Ab is stopped.

  As shown in FIG. 18, the first release mechanism 18 includes a push button 20 provided on the grip 4, a drive rod 21 connected to the push button 20 and moved up and down by the push button 20, and a drive rod. And a rotating piece 22 that is pressed by the lower end of 21 and rotates in a direction in which the protruding pin 16 is forcibly retracted.

  The push button 20 is disposed at the center of the upper surface of the grip 4 so as to be movable up and down. The push button 20 is connected to the lower surface of the grip 4 through an elastic body 23, and is pushed out elastically through the elastic body 23. This push button 20 has a drive rod 21 connected to its lower surface, and when the push button 20 is moved up and down with a finger, the drive rod 21 is driven up and down.

  The drive rod 21 is disposed inside the grip 4 and the upper telescopic pipe 5Aa, and is driven up and down by the push button 20 to rotate the rotating piece 22. The drive rod 21 shown in FIG. 18 includes a horizontal rod 21A connected to the lower surface of the grip 4 and a vertical rod 21B inserted through the upper telescopic pipe 5Aa. Both ends of the horizontal rod 21A are located above the upper end of the vertical rod 21B. When the horizontal rod 21A is pressed downward, the vertical rod 21B is pressed downward. The vertical rod 21B has an upper end inserted through an insertion cap 24 that moves up and down in the upper telescopic pipe 5Aa so that the vertical rod 21B can be accurately moved up and down in the upper telescopic pipe 5Aa. However, both ends of the horizontal rod can be connected to the upper end of the vertical rod. For example, the drive rod may be a single rod that is bent in a U shape. The lower end of the drive rod 21 is extended to the lower end of the upper telescopic pipe 5Aa.

  The rotating piece 22 is disposed at the lower end of the upper telescopic pipe 5Aa, and is pressed by the lower end of the drive rod 21 to rotate in the direction in which the protruding pin 16 is forcibly drawn. The upper expansion pipe 5Aa shown in the figure has a guide cap 25 connected to the lower end, and a turning piece 22 is mounted inside the guide cap 25 so as to be able to turn in a vertical plane. The guide cap 25 has an insertion hole 26 </ b> A through which the drive rod 21 is inserted in the connecting cylinder portion 26 inserted into the upper telescopic pipe 5 </ b> Aa so that the lower end portion of the drive rod 21 can be accurately moved up and down. . The rotating piece 22 is bent in an L shape as a whole, and one end is connected to the guide cap 25 via the rotating shaft 27 and protrudes toward the protruding pin 16 on both sides of the other end. A pin 22A is provided. When the rotating piece 22 is pressed by the driving rod 21 and rotates, the tip of the pin 22A is brought into contact with the protruding portions 16A provided on both sides of the protruding pin 16, and the protruding pin 16 is rotated by the rotating pin 22A. Press to forcibly retract. When the pressing of the drive rod 21 is released, the projecting pin 16 is not pressed by the pin 22A of the rotating piece 22, and is elastically pushed out by the elastic member 19 to rotate the rotating piece 22 to the original posture.

  In the first release mechanism 18 described above, when the push button 20 is pressed, the drive rod 21 is pushed down, and the rotating piece 22 disposed at the lower end of the drive rod 21 is rotated. The rotating piece 22 that rotates rotates the protruding pin 16 at the tip of the pin 22 </ b> A in a direction in which the protruding pin 16 is pulled out, and pulls the protruding pin 16 out of the locking portion 17. In this state, the first stopper 15A is released, and the upper expansion pipe 5Aa can move up and down in the lower expansion pipe 5Ab. When the push button 20 is released, the projecting pin 16 is pressed by the elastic member 19 so that it can project toward the lower telescopic pipe 5Ab.

  The first stopper 15 </ b> A pushes the push button 20 of the first release mechanism 18 provided on the grip 4 to forcibly retract the protruding pin 16 to release the locked state. In this state, the upper expansion pipe 5Aa is pulled up or lowered. The upper expansion pipe 5Aa into which the protruding pin 16 is drawn moves up and down in the lower expansion pipe 5Ab. When the grip 4 is adjusted to a predetermined height after the push button 20 is released, the projecting pin 16 is guided to the locking portion 17 and the expansion / contraction of the upper expansion / contraction pipe 5Aa is stopped. Stopped.

  The second release mechanism 38 includes an insertion rod 31 provided at the lower end of the upper telescopic pipe 5A, and a rotating piece that is pressed by the lower end of the insertion rod 31 and rotates in a direction in which the protruding pin 36 is forcibly pulled. 32.

  The insertion rod 31 protrudes downward from the lower surface of the guide cap 25 fixed to the lower end of the upper telescopic pipe 5A. The insertion rod 31 is inserted into the insertion hole 35A of the guide cap 35 fixed to the lower end of the lower expansion pipe 5Ab, and the upper end of the rotating piece 32 is pressed at the lower end to rotate the rotating piece 32. .

  The rotating piece 32 is disposed at the lower end of the lower expansion pipe 5Ab and is pressed by the lower end of the insertion rod 31 to rotate in the direction in which the protruding pin 36 is forcibly drawn. The lower expansion pipe 5Ab shown in the drawing has a guide cap 35 connected to the lower end, and a turning piece 32 is mounted inside the guide cap 35 so as to be able to turn in a vertical plane. The guide cap 35 has an insertion hole 35A on the upper surface so that the insertion rod 31 can be inserted. The rotating piece 32 is bent in an L shape as a whole, and one end is connected to the guide cap 35 via the rotating shaft 33 and protrudes toward the protruding pin 36 on both sides of the other end. A pin 32A is provided. When the rotating piece 32 is pressed by the insertion rod 31 and rotates, the tip of the pin 32A is brought into contact with the protruding portions 36A provided on both sides of the protruding pin 36, and the protruding pin 36 is moved by the rotating pin 32A. Press to forcibly retract. When the pressing of the insertion rod 31 is released, the protruding pin 36 is no longer pressed by the pin 32A of the rotating piece 32, and is elastically pushed out by the elastic member 39 to rotate the rotating piece 32 to the original posture.

  In the second release mechanism 38 described above, when the upper expansion pipe 5Aa is pushed to the deepest part of the lower expansion pipe 5Ab, the insertion rod 31 is inserted into the insertion hole 35A of the guide cap 35, and the lower end of the lower expansion pipe 5Ab. The rotating piece 32 disposed on is rotated. The rotating piece 32 that rotates rotates the protruding pin 36 at the tip of the pin 32 </ b> A in the direction in which the protruding pin 36 is pulled out, and pulls the protruding pin 36 out of the locking portion 37. In this state, the second stopper 15B is released, and the lower telescopic pipe 5Ab can move up and down in the fixed pipe 5B. At this time, the protruding pin 16 of the upper stopper 15 </ b> Aa is inserted through the locking portion 17 provided at the bottom of the lower expansion pipe 5 </ b> Ab, and the insertion rod 31 is held in the state of being inserted into the insertion hole 35 </ b> A of the guide cap 35. Has been. For this reason, the protruding pin 36 is held in a state of being moved in the pulling direction by the rotating piece 32. In this state, the upper expansion pipe 5Aa and the lower expansion pipe 5Ab are connected in a contracted state, and the upper expansion pipe 5Aa and the lower expansion pipe 5Ab are integrally connected to each other in the fixed pipe 5B. Move up and down.

  Further, when the upper and lower stretchable pipes 5Aa and 5Ab that are integrally connected are inserted into the fixed pipe 5B most deeply, the protruding pin 16 of the first stopper 15A is provided on the inner side of the fixed pipe 5B. 30 is inserted. In this state, the contraction of the telescopic strut 5 is stopped, and the grip 4 is stopped in the state where it is lowered most. When releasing the locking state between the protruding pin 16 and the locking portion 30, the push button 20 of the first release mechanism 18 is pressed to pull out the protruding pin 16 from the locking portion 30. In this state, the lower telescopic pipe 5Ab can move up and down in the fixed pipe 5B.

  Further, when stopping the pulling out of the lower expansion pipe 5Ab, the push button 20 of the first release mechanism 18 is pressed to forcibly retract the protruding pin 16 to release the first stopper 15A, and the upper expansion pipe 5Aa is moved to the lower stage. Pull out from the telescopic pipe 5Ab. At this time, the insertion rod 31 is pulled out from the insertion hole 35 </ b> A of the guide cap 35, and the protruding pin 36 is protruded by the elastic member 39. In this state, the lower expansion pipe 5Ab is pulled out, the projecting pin 36 is inserted into the locking portion 37 provided at the upper end of the fixed pipe 5B, and the pulling out of the lower expansion pipe 5Ab is stopped.

  The stopper 15 having the above-described structure can stop the telescopic column 5 where the telescopic pipe 5A is expanded and contracted in two stages at a predetermined position. However, the bag of the present invention does not specify the stopper as described above. The stopper can be any mechanism that can stop the telescopic support column 5 at a predetermined position.

DESCRIPTION OF SYMBOLS 1 ... Bag part 1X ... Side surface 2 ... Base frame 2R ... Connection part 3 ... Bag main body 3A ... Main body
3B ... Lid
3C ... 1st case
3D ... 2nd case
3S ... insertion zone
3R ... Connecting piece 4 ... Grip 5 ... Expandable support 5A ... Expandable pipe
5Aa ... Upper expansion pipe
5Ab ... Lower expansion pipe
5Ax ... Vertical
5Ay ... Horizontal
5B ... Fixed pipe
5Bx ... Vertical
5By ... Lateral part 6 ... Caster 7 ... Handle 8 ... Supporting cylinder 8A ... Projection part 9 ... Reinforcement wall 10 ... Reinforcement base 11 ... Connecting rod 12 ... Insertion gap 14 ... Insertion recess 15 ... Stopper 15A ... First stopper
15B ... 2nd stopper 16 ... Projection pin 16A ... Projection part 17 ... Locking part 18 ... 1st release mechanism 19 ... Elastic member 20 ... Push button 21 ... Drive rod 21A ... Horizontal rod
21B ... Vertical rod 22 ... Rotating piece 22A ... Pin 23 ... Elastic body 24 ... Insertion cap 25 ... Guide cap 26 ... Connecting cylinder part 26A ... Insertion hole 27 ... Rotating shaft 30 ... Locking part 31 ... Inserting rod 32 ... Rotation Piece 32A ... Pin 33 ... Rotating shaft 35 ... Guide cap 35A ... Insertion hole 36 ... Projection pin 36A ... Projection portion 37 ... Locking portion 38 ... Second release mechanism 39 ... Elastic member 81 ... Bag portion 81X ... Side surface 84 ... Grip 85 ... telescopic support 86 ... caster 87 ... handle 96 ... caster 97 ... handle 98 ... leg

Claims (6)

Bag part (1),
A caster (6) that is provided at four locations on both sides of the bottom surface of the bag portion (1) and runs the bag portion (1) independently;
A handle (7) connected to one side of the bag portion (1),
The handle (7) is connected to one side of the bag portion (1) in a parallel posture with a plurality of telescopic struts (5) that can be expanded and contracted vertically, and is attached to the upper end of the telescopic strut (5). The grip (4) is fixed,
A bag having a caster configured to support the bag part (1) in a self-supporting state with the caster (6),
The telescopic strut (5) is a hollow pipe, a fixed pipe (5B) that is fixed to the bag part (1), and an elastic pipe (5A) that is inserted into the fixed pipe (5B) so as to expand and contract. Consists of
The stretchable pipe (5A) is thicker than the vertical part (5Ax) parallel to the both side surfaces (1X) of the bag part (1), and the horizontal part (5Ay) is perpendicular to the vertical part (5Ax). A spear with a caster with an increased thickness.   The fixed pipe (5B) is thicker than the vertical part (5Bx) parallel to both side surfaces (1X) of the bag part (1), and the horizontal part (5By) is perpendicular to the vertical part (5Bx). A bag having a caster according to claim 1, wherein the caster is made thick.   The telescopic strut (5) is bent or inclined so that the grip (4) at the upper end is unevenly distributed from one side of the bag part (1) to the center part, and a vertical load acting on the grip (4) is applied to the bag part ( A scissor having casters according to claim 1 or 2, wherein the casters are made to act in the middle of casters (6) provided on both sides of 1).   The eaves having casters according to any one of claims 1 to 3, wherein the telescopic strut (5) has a rectangular tube shape.   The bag portion (1) includes a bag main body (3) and a base frame (2) formed by connecting the bag main body (3) to the upper part, and the caster (6) and the base frame (2) are attached to the base frame (2). A bag having a caster according to any one of claims 1 to 4, wherein the fixed pipe (5B) is fixed.   The handle (7) includes a stopper (15) for stopping the telescopic column (5) at the extended position, and the caster (5) is extended and stopped by the stopper (15). The bag having casters according to any one of claims 1 to 5, wherein a height from a lower end of 6) to the grip (4) is 60 to 100 cm.

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