JP3147607U - Bag support - Google Patents

Abstract

An object of the present invention is to provide a bag support that can adjust the length of an arm so as to suit the size of a bag and the condition of an object and can be easily attached.
SOLUTION: Two arms (an outer cylinder 1 and an inner cylinder 2), which are connected so as to be relatively movable in the length direction and can be maintained in a relatively moved position, and two arms 1, 2 are connected. Provided at each end on the opposite side of the side, and provided with attachment portions 10 and 20 attached to the object, the bag 31 is supported by the arms 1 and 2. The object is a wheelbarrow (stroller) frame 30.
[Selection] Figure 10

Description

  The present invention relates to a bag support used by being attached to a handcart such as a stroller or a shopping cart.

A bag support that is attached to the handle of a bicycle and supports a bag containing small items such as rain gear is known (see Patent Document 1). The bag support described in Patent Document 1 is composed of one arm and a pair of attachments attached to the central portion of the handle in a state where the arm is substantially parallel to the bicycle handle. Each fixture has two gripping pieces having semi-cylindrical contact portions at both ends, and the arms and the handle are sandwiched with the contact portions at both ends of the two gripping pieces facing each other. This is a structure in which an arm is attached to a handle via a fixture by fitting a nut to a bolt passed through a through hole provided in each of the gripping pieces and tightening the nut. The bag is supported by hanging a suspension ring attached to the bag through the arm.
Utility Model Registration No. 3048728

  In the bag support described in Patent Document 1, since the arm length is constant, the arm length cannot be adjusted according to the size of the bag or the condition of the object that supports the bag, which is inconvenient. is there. Moreover, since it is necessary to attach a target object and an arm simultaneously with a pair of fixtures which are separate members, attachment operation is troublesome.

  The present invention has been made in view of the circumstances as described above, and the bag support that can adjust the length of the arm to suit the size of the bag and the condition of the object and is easy to install. The purpose is to provide ingredients.

  Another object of the present invention is to provide a bag support that can be more easily adapted to the situation of the attachment site of an object while being easier to attach.

  Another object of the present invention is to provide a bag support that can easily adjust the length of the arm and can more appropriately cope with the situation of the attachment site of the object. .

  Another object of the present invention is to provide a bag support that can be easily attached to a handcart.

The bag support device according to the first device is connected to the bag support device attached to the object so that the bag is supported by the object so as to be relatively movable in the length direction, and can be maintained at the relatively moved position. Each of the two arms and an attachment portion that is provided at each end opposite to the connected side of the two arms and is attached to the object, and the bag is supported by the arm. It is the structure.
In the bag support device according to the first device, the two arms connected to be movable relative to each other in the length direction are maintained in positions adjusted by the relative movement in the length direction. After attaching the attachment part provided in each edge part of the side which is not connected to a target object, a bag is supported by two arms.

  In the bag support according to the second device, the attachment portion is fixed to the end portion of the arm, and has a base portion having a through hole in a direction intersecting with the length direction of the arm, and an axial diameter on one end side. A screw shaft having a larger-diameter retaining portion and having the other end inserted through the through hole of the base portion, and a screw hole screwed to the other end of the screw shaft passing through the through hole of the base portion A gripping portion that is swingably coupled at a part of the screw rotating part, and that can grip the object from both sides at a position spaced from the part when swinging and facing. A pair of gripping pieces provided with through holes in which the direction of the holes is along the swinging direction and the positions of the holes coincide with each other, and the pair of gripping pieces are detached from the base portion. The screw shaft is inserted between the through-holes of the pair of gripping pieces and located between the stoppers.

  In the second device, the other end side of the screw shaft provided with a retaining portion having a larger diameter than the shaft diameter on one end side is separated from a part of the pair of gripping pieces that are swingably connected (connecting points). The pair of gripping pieces are positioned between the base portion and the retaining portion of the screw shaft by being inserted into both of the through holes at the above positions and the through hole of the base portion in the direction intersecting the length direction of the arm. A screw hole of the screw rotating portion is screwed to the other end side of the screw shaft. By rotating the screw rotating portion and bringing the retaining portion of the screw shaft closer to the base portion, the object is gripped from both sides by both gripping portions of the pair of gripping pieces, and conversely, the retaining portion of the screw shaft. By separating the object from the base part, the gripping of the object gripped by both gripping parts of the pair of gripping pieces is released.

  In the bag support according to a third aspect, one of the two arms is an outer cylinder, and the other is loosely fitted in the outer cylinder so as to be rotatable about the cylinder axis and movable in the cylinder axis direction. The inner cylinder is provided with a tapered portion at one end of the inner cylinder and a screw shaft adjacent to the small-diameter end of the tapered portion in the cylinder axis direction, and is screwed to the screw shaft. A cylindrical stopper provided with an expansion / contraction portion at the end on the taper portion side is provided in contact with the inner peripheral surface of the tube to follow the rotation of the outer tube, and the taper portion is provided at the expansion / contraction portion with the rotation of the stopper. The outer cylinder and the inner cylinder are brought into contact with each other and the cylinders are brought into contact with each other and the cylinders are moved relative to each other in the cylinder axis direction so that the length is adjusted. It is characterized by.

  In the third device, when the outer cylinder and the inner cylinder loosely fitted in the outer cylinder rotate relative to each other around the axis of the cylinder, a cylinder axis direction is provided on the small diameter side end of the tapered portion provided at one end of the inner cylinder. Since the cylindrical stopper screwed into the screw shaft adjacent to the shaft contacts the inner peripheral surface of the outer cylinder and rotates following the outer cylinder and moves in the direction of the cylindrical axis, the tapered portion of the cylindrical stopper The outer cylinder and the inner cylinder are rotated relative to each other so that the cylindrical stopper moves in the direction opposite to the direction in which the tapered portion is press-fitted into the expansion / contraction part of the side end, and the abutting and fixing of the outer cylinder and the inner cylinder is performed. In the released state, both cylinders are moved relative to each other in the cylinder axis direction to adjust the length of the entire cylinder. Next, when the outer cylinder and the inner cylinder are rotated relative to each other in the opposite direction, the taper portion is press-fitted into the expansion / contraction portion of the cylindrical stopper, the expansion / contraction portion expands, and the expanded / contraction portion is Thus, the outer cylinder and the inner cylinder are fixed in contact with each other, and both cylinders are moved relative to each other in the cylinder axis direction and maintained at the position where the length is adjusted.

The bag support according to a fourth aspect is characterized in that the object is a wheelbarrow frame.
In the fourth device, the attachment portions provided at the ends of the two arms not connected to each other, which are maintained at the positions adjusted in length, are attached to the wheelbarrow frame, and the arm is supported by the arm. .

  According to the bag support device of the first device, the lengths of the two arms connected so as to be relatively movable in the length direction are adjusted, and the attachment portions provided at the respective end portions of the two arms are targeted. Since the bag is supported by the arm after being attached to the object, the length of the arm can be adjusted to suit the dimensions of the bag and the situation of the object supporting the bag, and the attachment part is integrated with the arm. Therefore, a bag support that can hold the arm with one hand and attach the attachment portion to the object with the other hand and can be easily attached is provided.

  According to the bag support tool of the second device, the object can be turned into the pair of gripping pieces only by rotating the screw rotating part with the object sandwiched between the gripping parts of the pair of opposing gripping pieces. Since it is gripped and attached to the mounting portion, the mounting operation is easier, and the object is positioned at a position where the pair of gripping pieces are rotated at an appropriate angle around the axis of the screw shaft of the through hole of the base portion. Since it attaches to an attaching part, the bag support tool which can respond more appropriately to the condition of the attachment part of a subject is provided.

  According to the bag support of the third device, the two cylinders are moved relative to each other in the cylinder axis direction while the outer cylinder and the inner cylinder are rotated relative to each other around the axis of the cylinder to release the contact and fixation of both cylinders. After adjusting the length of the cylinder, by rotating the outer cylinder and the inner cylinder in opposite directions and abutting and fixing both cylinders, both cylinders are maintained in the position where the length has been adjusted. The length of the arm can be easily adjusted, and the object to be attached to the attachment part by appropriately changing the angle when the outer cylinder and the inner cylinder are relatively rotated around the cylinder axis and fixed in contact with each other Since the attachment angle of an object differs, the bag support which can respond | correspond more appropriately with the condition of the attachment site | part of an object is provided.

  According to the bag support tool concerning the 4th device, the bag support tool which can be simply attached to a handcart by using the frame of the handcart as an object is provided.

  Hereinafter, embodiments of a bag support according to the present invention will be described with reference to the drawings. 1 is a front view of a bag support according to the present invention, FIG. 2 is a plan view of the bag support shown in FIG. 1, FIG. 3 is a right side view of the bag support, and FIG. 4 is a rear view of the bag support. 5 is a bottom view of the bag support, FIG. 6 is a front view of the main part of the bag support, and FIG. 7 is a partial front sectional view showing the structure and operation of the main part of the bag support.

  The bag support according to the present invention has an outer cylinder 1 and an outer diameter that is slightly smaller than the inner diameter of the outer cylinder 1, and is rotatable within the outer diameter 1 around the axis of the cylinder and movable in the cylinder axis direction. The inner cylinder 2 is fitted. The relative length of the outer cylinder 1 and the inner cylinder 2 can be adjusted by moving the outer cylinder 1 and the inner cylinder 2 relative to each other in the length direction. The outer cylinder 1 and the inner cylinder 2 are made of a metal pipe material.

  A taper portion 3 and a screw shaft 4 adjacent to the end portion on the small diameter side of the taper portion 3 in the tube axis direction are provided coaxially at one end portion of the inner tube 2 inserted into the outer diameter 1. The tapered portion 3 has a conical shape having a small diameter on the side far from one end portion of the inner cylinder 2 and is fixed to the end portion of the inner cylinder 2, and the screw shaft 4 is fixed to the tip of the tapered portion 3. The screw shaft 4 has a screw portion 4a only at the central portion in the longitudinal direction. The taper portion 3 is made of a hard plastic material or the like, and the screw shaft 4 is made of metal, but the taper portion 3 may be made of metal and the screw shaft 4 may be made of a hard plastic material or the like. A cylindrical cap 8 that covers the gap between the end of the outer cylinder 1 and the outer peripheral surface of the inner cylinder 2 is loosely fitted on the outer periphery of the inner cylinder 2.

  A cylindrical stopper 6 that frictionally engages with the inner peripheral surface of the outer cylinder 1 is screwed onto the screw portion 4 a, and a nut portion 5 for preventing the stopper 6 from coming off is provided at the tip of the screw shaft 4. The stopper 6 is made of a hard plastic material or the like, and an expansion / contraction portion 6b that is elastically expandable / contractible is formed at an end portion of the stopper 6 on the tapered portion 3 side by a dividing groove 6a along the axial direction. The expansion / contraction part 6b is provided with a friction member 7 on the outer peripheral surface. Two split grooves 6a are provided at 180 ° rotationally symmetrical positions in the circumferential direction of the stopper 6, and the friction member 7 is made of a rubber sheet material having a large friction coefficient in the circumferential range of the stopper 6 excluding the split groove 6a. It is formed by pasting.

  An end of the stopper 6 opposite to the tapered portion 3 (expanded / reduced portion 6b) side is provided with a split groove 6c along the axial direction and is formed to have a larger diameter than the inner peripheral surface of the outer tube 1. A sliding contact portion 6d that elastically and frictionally engages is provided on the inner peripheral surface of the inner surface. The sliding contact portion 6d has a protrusion 6e on the outer peripheral surface. Four split grooves 6c are provided at 90 ° rotationally symmetrical positions in the circumferential direction of the stopper 6, and the protrusion 6e is an ellipse having a major axis along the circumferential direction in the center of each region of the stopper 6 between the split grooves 6c. It is formed into a shape.

  In the above configuration, when the outer cylinder 1 and the inner cylinder 2 are rotated relative to each other, the sliding contact portion 6d of the stopper 6 is frictionally engaged with the inner peripheral surface of the outer cylinder 1 at the protrusion 6e, and the outer cylinder 1 is rotated. The stopper 6 is screwed onto the screw shaft 4 and moves in the axial direction of the screw shaft 4. The stopper 6 moves due to the relative rotation of the outer cylinder 1 and the inner cylinder 2, and the tapered portion 3 is press-fitted into the expansion / contraction portion 6b to expand the diameter, whereby the outer cylinder 1 and the inner cylinder 2 are abutted and fixed, and the outer cylinder 1 The lengths of the cylinder 1 and the inner cylinder 2 are maintained at adjusted positions. By the relative rotation of the outer cylinder 1 and the inner cylinder 2, the stopper 6 moves in the opposite direction, the expansion / contraction part 6 b is detached from the taper part 3, and the diameter of the expansion / contraction part 6 b is not press-fitted, thereby reducing the diameter. The contact and fixation between the outer cylinder 1 and the inner cylinder 2 is released.

  Next, the structure for attaching the bag support according to the present invention to an object will be described. The bag support according to the present invention includes mounting portions 10 and 20 at each end on the opposite side of the outer cylinder 1 and the inner cylinder 2 connected to each other.

  The mounting part 10 provided at the end of the inner cylinder 2 and the mounting part 20 provided at the end of the outer cylinder 1 have the same structure. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 1, and FIG. 9 is a cross-sectional view taken along line IX-IX in FIG.

  The mounting portion 10 includes a through-hole 11 d that is oriented to intersect the cylinder axis direction of the inner cylinder 2, a base portion 11 that is fixed to an end portion that is not connected to the outer tube 1, and the base portion 11. A screw shaft 14 inserted through the through-hole 11d and having a nut portion 14a having a diameter larger than the shaft diameter on one end side, and an adjustment screw 15 having a screw hole 15a screwed to the other end side of the screw shaft 14; It has a pair of grip pieces 12 and 13 for gripping an object.

  The base portion 11 includes a cylindrical portion 11a that is externally press-fitted coaxially to the end portion of the inner cylinder 2, and a plate-like portion 11b that is connected to the lateral side portion of the cylindrical portion 11a. And a chrysanthemum 11c around the through hole 11d.

  The pair of gripping pieces 12 and 13 are flat, substantially rectangular parallelepiped shapes, are symmetrical, and are connected to one end side in the longitudinal direction so as to be swingable (openable / closable) by a pivot 17. The pair of gripping pieces 12, 13 have gripping recesses 12 a, 13 a at the same position on the other end side in the longitudinal direction when swinging and facing each other, and between the gripping recesses 12 a, 13 a and the pivot 17. There are through holes 12b, 13b penetrating both gripping pieces 12,13. In the through holes 12b and 13b, the direction of the holes is along the swinging direction, and the positions of the holes are the same. The through-hole 12b of one gripping piece 12 is formed as a round hole, and a chrysanthemum seat 12c is provided on the outer peripheral side of the edge, and the through-hole 13b of the other gripping piece 12 is formed as a long hole that is long in the longitudinal direction. .

  The gripping recesses 12a and 13a are fitted into the cylindrical portions on the inner wall side of the gripping pieces 12 and 13 by cylindrical ribs 18 provided at two locations, the center portion of the outer peripheral surface and the end portion of the extension portion toward the pivot 17 side. It is supported. One gripping recess 12a has a round hole having the same shape as the through hole 12b of the corresponding gripping piece 12, and the other gripping recess 13a has a long hole having substantially the same shape as the through hole 13b of the corresponding gripping piece 13. The holding recesses 12a and 13a are made of a relatively flexible synthetic resin material.

  A coil spring 16 is disposed between one gripping concave portion 12a and the other gripping piece 13, and the screw shaft 14 passes through the coil spring 16 in the axial direction so that the through holes 12b and 13b of the gripping pieces 12 and 13 and the plate-like portion. The through-hole 11d of 11b is inserted. By turning the adjusting screw 15 screwed to the tip of the screw shaft 14, the distance between the pair of gripping pieces 12, 13 is changed, and the gripping force is adjusted. The gripper 12c on the outer peripheral side of the edge of the through hole 12b can be satisfactorily maintained at the gripping position by engaging with the starboard 11c around the through hole 11d of the plate-like part 11b.

The mounting portion 20 has the same structure as that of the mounting portion 10 described above, and portions of the same structure corresponding to the mounting portion 10 are shown in parentheses in FIGS.
The mounting portion 20 includes a through-hole 21 d that is oriented to intersect the cylinder axis direction of the outer cylinder 1, a base portion 21 that is fixed to an end portion that is not connected to the inner tube 2, and the base portion 21. A screw shaft 24 that is inserted into the through-hole 21d and includes a nut portion 24a having a diameter larger than the shaft diameter on one end side, and an adjustment screw 25 including a screw hole 25a that is screw-coupled to the other end side of the screw shaft 24; It has a pair of gripping pieces 22 and 23 for gripping an object.

  The base portion 21 includes a cylindrical portion 21a that is coaxially fitted into the end portion of the outer cylinder 1 and a plate-like portion 21b that is connected to a lateral side portion of the cylindrical portion 21a. A through-hole 21d is formed at the center of the plate-like portion 21b. And a chrysanthemum 21c around the through hole 21d.

  The pair of gripping pieces 22 and 23 are flat, substantially rectangular parallelepiped shapes, are symmetrical, and are connected to one end side in the longitudinal direction so as to be swingable (openable / closable) by a pivot 27. The pair of gripping pieces 22, 23 have gripping recesses 22 a, 23 a at the same position on the other end side in the longitudinal direction when swinging and facing each other, and between the gripping recesses 22 a, 23 a and the pivot 27. There are through-holes 22b and 23b penetrating both gripping pieces 22 and 23. In the through holes 22b and 23b, the direction of the holes is along the swinging direction, and the positions of the holes are the same. The through-hole 22b of one gripping piece 22 is formed in a round hole, and a chrysanthemum seat 22c is provided on the outer peripheral side of the edge, and the through-hole 23b of the other gripping piece 22 is formed as a long hole that is long in the longitudinal direction. .

  The gripping recesses 22a and 23a are fitted into the cylindrical portions on the inner wall side of the gripping pieces 22 and 23 by cylindrical ribs 28 provided at two locations, the center portion of the outer peripheral surface and the end portion of the extension portion toward the pivot 27. It is supported. One gripping recess 22 a has a round hole having the same shape as the through hole 22 b of the corresponding gripping piece 22, and the other gripping recess 23 a has a long hole having substantially the same shape as the through hole 23 b of the corresponding gripping piece 23. The holding recesses 22a and 23a are made of a relatively flexible synthetic resin material.

  A coil spring 26 is disposed between one gripping recess 22a and the other gripping piece 23, the screw shaft 24 passes through the coil spring 26 in the axial direction, and the through holes 22b and 23b of the gripping pieces 22 and 23 and the plate-like portion. The through hole 21d of 21b is inserted. By turning the adjusting screw 25 screwed to the tip of the screw shaft 24, the distance between the pair of gripping pieces 22, 23 is changed, and the gripping force is adjusted. The gripper 22c on the outer peripheral side of the edge of the through hole 22b engages with the starboard 21c around the through hole 21d of the plate-like part 21b, so that the gripping position can be maintained well.

  FIG. 10 is a perspective view showing a state in which the bag support according to the present invention is attached to the stroller. After the outer cylinder 1 and the inner cylinder 2 are turned sideways and the length is adjusted to the distance between the vertical frames 30 on both sides of the stroller, the adjustment screw 15 of one mounting portion 10 is loosened to hold the holding recesses 12a, The gripping recesses 12 a and 13 a are externally fitted to one vertical frame 30 of the stroller in a state where the spaces 13 a are separated from each other, and the adjustment screw 15 is tightened to attach the mounting portion 10 to the one vertical frame 30. Similarly, the gripping recesses 22a and 23a are externally fitted to the other vertical frame 30 in a state where the gripping recesses 22a and 23a of the gripping pieces 22 and 23 are separated by loosening the adjustment screw 25 of the other mounting portion 20. The attachment portion 20 is attached to the other vertical frame 30 by tightening the screw 25. Finally, the hanging string 32 attached to the upper part of the bag 31 is hooked on the outer cylinder 1 and the inner cylinder 2 and supported. In addition, the string 33 attached to the lower part of the bag 31 is tied to the frame of the stroller so that the bag 31 does not swing during the movement of the stroller.

Next, FIG. 11 and FIG. 12 are perspective views showing other attachment forms of the bag support according to the present invention.
11 differs from the case of FIG. 10 in that the attachment angles of the attachment portions 10 and 20 with respect to the length direction of the outer cylinder 1 and the inner cylinder 2 are different in order to support the bag 31 on the lateral frame 30A of the stroller. The operation of the attachment portions 10 and 20 and the bag mounting procedure are the same as in FIG.
FIG. 12 shows an attachment portion that is attached to the horizontal frame 30A among the attachment portions 10 and 20 of both the outer cylinder 1 and the inner cylinder 2 in order to support the bag 31 on the vertical frame 30 and the horizontal frame 30A of the stroller. Although the attachment angle of 10 is different from that in FIG. 10, the operation of the other attachment portions 10 and 20 and the procedure for attaching the bag are the same as in FIG. Although not shown, the bag 31 can be supported on an oblique frame of a stroller.

  10 to 12, the frames 30 and 30A are located in the same plane, but the outer cylinder 1 and the inner cylinder 2 when the outer cylinder 1 and the inner cylinder 2 are fixed by adjusting their lengths. It is also possible to attach each attachment part 10 and 20 to the flame | frame which is not located in the same plane by adjusting the rotation angle of the periphery of an axis.

  In the above-described embodiment, the bag support of the present invention is attached to the stroller frame 30, 30A, but it can also be attached to the frame of a handcart such as a shopping cart.

  In the above-described embodiment, the two arms whose lengths are adjusted are constituted by the outer cylinder 1 and the inner cylinder 2, but two rods arranged in parallel to each other may be used.

  In the above-described embodiment, the screw shaft 4 is fixed adjacent to the tip of the small diameter side of the tapered portion 3 fixed to one end portion of the inner cylinder 2, but conversely, the screw shaft 4 is fixed to one end portion of the inner cylinder 2. It is good also as a structure which fixes the taper part 3 in the state which a small diameter side edge part adjoins the front-end | tip of this screw shaft 4. FIG. In this case, the positions of the expansion / contraction part 6b and the sliding contact part 6d provided at both ends of the stopper 6 are also switched.

It is a front view of the bag support according to the present invention. It is a top view of the bag support shown in FIG. It is a right view of the bag support shown in FIG. It is a rear view of the bag support shown in FIG. It is a bottom view of the bag support shown in FIG. It is a front view of the principal part of the bag support shown in FIG. It is a front fragmentary sectional view which shows the structure and operation | movement of the principal part of the bag support tool shown in FIG. It is sectional drawing in the VIII-VIII line of FIG. It is sectional drawing in the IX-IX line of FIG. It is a perspective view which shows the state which attached the bag support tool which concerns on this invention to the stroller. It is a perspective view which shows another attachment form of the bag support tool which concerns on this invention. It is a perspective view which shows another attachment form of the bag support tool which concerns on this invention.

Explanation of symbols

1 outer cylinder (arm)
2 Inner cylinder (arm)
DESCRIPTION OF SYMBOLS 3 Tapered part 4 Screw shaft 6 Stopper 6b Expansion / contraction part 10 Attachment part 11 Base part 11d Through-hole 12,13 Grasping piece 12a, 13a Grasping recessed part (gripping part)
12b, 13b Through-hole 14 Screw shaft 14a Nut (preventing part)
15 Adjustment screw (operation unit)
15a Screw hole 20 Mounting portion 21 Base portion 21d Through hole 22, 23 Holding piece 22a, 23a Holding recess (gripping portion)
22b, 23b Through-hole 24 Screw shaft 24a Nut (preventing part)
25 Adjustment screw (operation unit)
25a Screw hole 30 Vertical frame (object)
30A Horizontal frame (object)
31 bags

Claims (4)

In order to support the bag on the object, the bag support attached to the object,
Two arms that are connected to each other so as to be relatively movable in the length direction and that can be maintained at the position of the relative movement, and provided at each end of the two arms opposite to the connected side, A bag support, comprising: a mounting portion attached to an object; and a bag supported by the arm. The mounting portion includes a base portion that is fixed to an end portion of the arm and includes a through hole in a direction intersecting with the length direction of the arm, and a retaining portion having a diameter larger than the shaft diameter on one end side. A screw rotating portion having a screw shaft whose end side is inserted into the through hole of the base portion, a screw hole that is screwed to the other end side of the screw shaft that has passed through the through hole of the base portion, and a part thereof A gripping portion that can be swingably connected, and is capable of gripping the object from both sides at a position spaced from the part when swinging and facing, and a hole between the gripping part and the part And a pair of gripping pieces provided with through holes in which the positions of the holes are aligned along the swinging direction,
2. The bag according to claim 1, wherein the pair of grip pieces are positioned between the base portion and the retaining portion, and the screw shafts are inserted into both through holes of the pair of grip pieces. Support tool.   The two arms are formed of an inner cylinder, one of which is an outer cylinder, and the other of which is an inner cylinder that is freely fitted in the outer cylinder so as to be rotatable about the cylinder axis and movable in the cylinder axis direction. A tapered portion and a screw shaft adjacent to the end portion on the small diameter side of the tapered portion in the cylinder axis direction are coaxially provided, screwed to the screw shaft, and in contact with the inner peripheral surface of the outer cylinder. A cylindrical stopper having an expansion / contraction portion at the end on the taper portion side is provided, and the taper portion is press-fitted into the expansion / contraction portion with the rotation of the stopper, so that the expansion / contraction portion expands in diameter. 3. The structure according to claim 1, wherein the outer cylinder and the inner cylinder are fixed in contact with each other, and both the cylinders are relatively moved in the cylinder axis direction and maintained at a position whose length is adjusted. Bag supporter.   The bag support according to any one of claims 1 to 3, wherein the object is a wheelbarrow frame.

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