JP2006088795A - Detachable type carrier basket mounting device for carrier of bicycle or the like - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply detach a carrier basket mounting device mounting a carrier basket to a rear carrier of a bicycle. <P>SOLUTION: The detachable type carrier basket mounting device for the rear carrier of the bicycle or the like is equipped with a carrier basket mounting part 3 mounting the carrier basket A, a fixed side mounting base 1 equipped with a first hooking part 4 hooked to the rear carrier B at the lower surface end part, a movable side mounting base 2 equipped with a second hooking part 5 movably having opposed to the fixed side mounting base and hooked to the rear carrier B at the lower surface end part, an operation means 7 on the fixed side mounting base and the movable side mounting base, and a mounting base fastening structure 8 which can slide the movable side mounting base in the approaching or separating direction relative to the fixed side mounting base with the operation means, and fasten the fixed side mounting base and the movable side mounting base with the operation means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a detachable cargo loading device for a loading platform such as a bicycle, in which a loading platform with a loading platform can be easily attached to and detached from a loading platform such as a bicycle or a wheelbarrow.

  Conventionally, as this kind of bicycle luggage mounting device, a mounting base is fixed to the side of the bicycle loading platform, and the cargo can be removed from the mounting platform. With the mounting device, a plurality of locking projections project from the bottom of the container, and the container mounting plate that is mounted on the loading platform of a bicycle or the like and on which the container is placed is locked with a hole into which the locking projection is fitted. A structure in which an engagement portion of a protrusion is provided, a locking protrusion is inserted into a hole of the mounting plate body to be engaged with the engagement portion, and the movement in the disengagement direction by the locking means is known. (See Patent Document 1). The storage member mounting apparatus and the storage member-equipped bicycle include a storage member base that is attached to the bicycle and a mounted body that is provided on the storage member side, and the storage member is placed on the storage member base via the mounted body. The fitting body is provided with a fitting projection, the fitting member is provided with a fitting hole in which the fitting projection is detachably fitted, and the fitting projection is used as a fitting hole. A device provided with a lock member that locks in a fitted state (see Patent Document 2) has been proposed.

Japanese Utility Model Publication No. 51-57456 JP 2003-137157 A

In the container mounting device of Patent Document 1, a mounting base is attached to the bicycle carrier, and in the storage member mounting device of Patent Document 2, the storage member base is attached to the bicycle carrier, and the container and the storage member are removed. As a result, the mounting base and the storage member base are left on the bicycle carrier. Therefore, when using a bicycle with the container and the storage member removed, the mounting base and the storage member base remain attached to the cargo bed, so that the appearance is bad and it becomes an obstacle when placing children on the cargo bed. It has become.
In order to solve the above-described problem, the present invention provides a detachable load for a loading platform such as a bicycle, in which a mounting device for mounting a cargo can be easily attached to and detached from a bicycle loading platform, and the mounting device can be detached when the cargo handling is not used. The purpose is to provide a scissor mounting device.

  A detachable cargo loading device for a cargo bed of a bicycle or the like according to claim 1 of the present invention that solves the above-described problem is a cargo loading attachment portion that attaches a cargo bag to the upper surface and a first latching portion that latches the cargo bed at the lower surface edge A fixed-side mounting base provided with a movable side mounting base provided with a second hooking portion that is movably provided opposite to the fixed-side mounting base and that is hooked to the cargo bed at the lower end. The mounting base and the movable side mounting base have operating means, and the operating means can move the movable side mounting base toward or away from the fixed side mounting base, and the fixed side mounting base and the movable side mounting base. And a mounting base tightening structure capable of tightening the base.

  According to the invention configured as described above, the movable side mounting base is separated from the fixed side mounting base by the operating means, and the first latching portion and the second facing portion of the movable side mounting base and the fixed side mounting base are opposed to each other. Open the latching section, fit it across the loading platform, and then tighten the operating means to bring the movable mounting base closer to the fixed mounting base and the first and second latching sections facing each other To be held in the loading platform.

  According to a second aspect of the present invention, the mounting base fastening structure of the fixed side mounting base and the movable side mounting base includes a fixed side mounting base that is free to rotate and fixed in the axial direction, and an operating portion and a screw portion. The operating means having an operating shaft provided with the movable side mounting base is screwed with the screw portion of the operating means to convert the rotational movement of the operating means into a forward and backward movement and cooperates with the movable side mounting base. And a urging means mounted between the fixed side mounting base and the movable side mounting base of the operating means.

  With the invention configured as described above, the movable side mounting base is moved away from the fixed side mounting base by moving the advancing / retracting means provided on the movable side mounting base by the rotation of the screw portion of the operating shaft of the operating means. Open the first and second hooks facing each other on the movable side mounting base and the fixed side mounting base, fit them across the cargo bed, and then turn the operating means in reverse to tighten them. The movable side mounting base is brought close to the mounting base and is sandwiched between the first and second hooking portions facing each other. Since the biasing means is mounted between the fixed side mounting base and the movable side mounting base, when the operating means is tightened against the biasing means, the fixed side and the movable side mounting base are tightened and held accurately without causing looseness. it can.

  According to a third aspect of the present invention, the mounting base tightening structure of the fixed side mounting base and the movable side mounting base is provided on an operating means having an operating shaft provided with an operating portion and a screw portion, and the fixed side mounting base. A first support plate that freely supports the operation means in the rotation direction and receives movement in the axial direction; and is provided on the movable side mounting base, and an operating shaft of the operation means is the same as the first support plate A second support plate pivotally supported on the axis, a fixed shaft provided on the movable side mounting base in the rotational direction on the same axis as the second support plate, and provided so as to be capable of cooperating in the axial direction. And a biasing means mounted between the first support plate and the second support plate of the operation means.

  According to the invention configured as described above, the operating means is received by the first support plate of the fixed-side mounting base and is fixed in the axial direction and freely supported in the rotational direction. To rotate the screw part of the operating shaft to move the screwing member forward and backward in the axial direction, and move the movable side mounting base with the screwing member apart from the fixed side mounting base, and move the movable side mounting base and the fixed side. Open the first and second hooks facing each other on the mounting base, fit them across the loading platform, and then turn the operating means in the reverse direction to tighten them and attach them to the fixed side mounting base. The loading platform is clamped between the first latching portion and the second latching portion facing each other with the platform approaching. Since the biasing means is mounted between the first support plate and the second support plate, when the operating means is tightened against the biasing means, the fixed side and the movable side mounting base are securely tightened without causing looseness. it can.

According to a fourth aspect of the present invention, the fixed-side mount is provided with one or a plurality of guide means for guiding the movable-side mount that is moved relative to the mount.
With the invention configured as described above, the movable side mounting base is slid by being guided by the guide means of the fixed side mounting base when sliding.

  According to the present invention, the movable side mounting base is moved closer to or away from the fixed side mounting base by tightening or loosening the operating means, and the second hooking of the fixed side mounting base and the second hanging base of the movable side mounting base. The stop can be easily attached to and detached from the loading platform. Therefore, when using the cargo bar, the mounting device with the cargo bar attached can be easily and firmly attached to the carrier, and when the cargo bar is not used, the cargo bar can be removed together with the mounting device, so the appearance of the bicycle is good. And children can be placed on the carrier.

  According to this invention, the mounting base tightening structure causes the axial portion to move forward and backward by the screw portion of the operating shaft of the operating means and the forward / backward means provided on the movable side mounting base. For example, the screw portion of the operating shaft and the screwing member , And the screw member is moved forward and backward in the axial direction by rotating the screw part, and the movable side mounting base is moved toward and away from the fixed side mounting base to move with the first latching portion of the fixed side mounting base. The mounting device can be attached or detached easily by easily attaching and detaching the second latching portion of the side mounting base to the loading platform, and the operation means includes a fixed side mounting base (first support plate) and a movable side mounting base (second Since the urging means is mounted between the support plates) so that the urging force of the urging means is applied during tightening, the fixed side and the movable side mounting base can be tightened accurately without causing looseness.

  According to this invention, when the movable side mounting base is slid with respect to the fixed side mounting base, it is guided and moved by the guide means of the fixed side mounting base, so that the movable side mounting base can be smoothly approached or separated. Can do.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 is a plan view showing a detachable cargo loading device for a loading platform such as a bicycle according to the present invention, FIG. 2 is a bottom view thereof, FIG. 3 is a side sectional view of the same portion, FIG. 4 is a front sectional view of the same portion, and FIG. FIG. 6 is a partially cutaway side view of the fixed side and the movable side mounting base, FIG. 7 is a perspective view of the same part, and FIG. FIG. 8 is a sectional view of the state in which the latching portion is fastened and fixed, FIG. 9 is a plan view of the same, and FIG.

As shown in FIG. 7 to FIG. 10, A is a synthetic resin, metal, etc. bicycle luggage with a large number of lattice-shaped through holes and meshes formed around and / or the bottom surface, and is formed on the front and back of the bottom surface. Mounting holes 26 are provided on both sides of the installed portion 25. The mounting portion 25 is formed at a position where the cargo mounting portion 3 of the cargo mounting device according to the present invention, which will be described later, matches. When the cargo is attached to the cargo attachment part 3 of the cargo attachment device of the present invention, the installation part 25 of the cargo A is placed on the cargo attachment part 3, and the bolt 27 is attached to the attachment hole 26. And inserted into the mounting hole 3a of the cargo handling device and tightened and fixed with a nut 28. The cargo is not limited to the above, and can be attached to the cargo attachment portion 3 of the cargo attachment device of the present invention if the installation portion 25 is provided at the bottom.
B is a bicycle carrier. In the figure, an outer frame 30 that is bent into a substantially rectangular shape is combined with an inner frame 31 that is bent into a U-shape within the outer frame, and the front and rear parts of the outer frame and the lower surface of the inner frame are combined. In addition, a U-shaped horizontal hook 32 is fixed in the horizontal direction. The outer frame 30 of the bicycle carrier B of the embodiment has a shape in which the front part is narrow and the width is gradually increased to the rear part. The inner frame 31 has a tip fixed to a bicycle frame. Reference numeral 33 denotes a supporting leg rod that is applied to both sides of the horizontal rod 32 and the axle of the bicycle wheel. The loading platform is detachably equipped with a loading platform detachable cargo loading device according to the present invention. The shape of the loading platform is not limited to the above-described ones, and any conventional known loading platform can be used as long as the outer frame can be hooked by the mounting platform described below.籠 Attaching device can be installed.

1 to 6, a detachable cargo loading device for a loading platform such as a bicycle according to the present invention will be described in detail.
1 is a fixed side mounting base made of synthetic resin or the like on which a cargo bar A is placed. A cargo mounting part 3 for attaching the cargo bar A to both sides of the upper surface of the plate surface is formed as a U-shaped cross section, and one end of the lower surface of the mounting base A first hooking portion 4 that hooks on the outer frame 30 of the loading platform B is formed in the portion. 2 is a movable mounting base made of synthetic resin or the like, and is provided so as to be movable facing the fixed mounting base 1, and a second hooking portion 5 that hooks on the outer frame 30 of the cargo bed is provided on the lower surface of one end. Is formed. The first latching portion 4 and the second latching portion 5 are formed in a substantially symmetrical cross-sectional saddle shape so that they can be latched on both sides of the outer frame 30 of the loading platform.
The first hooking portion 4 of the fixed side mounting base 1 and the second hooking portion 5 of the movable side mounting base 1 are provided with hooking claws 4a and 5a on the inner surface. Since the outer frame 30 of the bicycle carrier B has a shape in which the width is slightly increased from the front portion to the rear portion, the shapes of the hooking claws 4a and 5a are made to match the shapes. In other words, the hooking claws 4a and 5a are formed so that the portion to be hooked on the narrow front portion side of the outer frame 30 of the loading platform B is long and the portion to be hooked on the wide rear portion is short, so On the other hand, when the movable side mounting base is tightened, the latching claws 4a and 5a match the shape of the outer frame 30 of the loading platform B and can be tightened accurately.
The cargo attachment portion 3 has an L-shaped cross section and is formed so that the cargo A is placed on the upper surface thereof, and attachment holes 3a for inserting bolts 27 for fixing the cargo A are provided at both ends thereof. The mounting hole 26 of the mounting portion 25 of the cargo container A is fitted in advance to the heel mounting portion 3 and is fastened and fixed with bolts 27, nuts 28, and the like. The mounting hole 3a is preferably a long hole in order to match the mounting hole 26 of the mounting portion 25 of the cargo container A. The height of the cargo attachment portion 3 is higher than the height of first and second support plates 12 and 18 described later, and when the cargo A is placed, the bottom surface of the cargo support mounting portion 3 is the first and second support plates. Do not hit 12, 18 etc.

The movable side mounting base 2 is movable between the fixed side mounting base 1 and the fixed side mounting base 1 so that the movable side mounting base 2 is opposite to the movable side mounting base 2 between the cargo attachment portions 3 on both sides. The U-shaped is provided with an opening 1a and a sliding surface 1c on the upper surface, the movable side mounting base 2 is formed to have a width that can be inserted between the cargo mounting parts 3, and the movable side mounting base 2 is fixed to the fixed side mounting base 1. Covering the upper surface of the opening 1a, the tip of the movable mounting base 2 is placed on the sliding surface 1c of the fixed mounting base 1 and is slidable on the fixed mounting base 1. The sliding surface 1c has an area capable of sliding the movable base 2 with a predetermined stroke from the inner end of the opening 1a. The length of the sliding surface 1c is longer than the stroke L. Ribs 1b and 2b are formed on the upper surface of the fixed-side mounting base 1 except for the sliding surface of the fixed-side mounting base 1 and the movable-side mounting base 2 at an arbitrary interval. Further, the movable side mounting base 2 is provided with a U-shaped opening 2a at the central portion on the side facing the fixed side mounting base 1, and a second support plate 18 is provided between the ribs 2b at the inner end of the opening 2a. It is fixed. The opening 2a of the movable side mounting base 2 is provided to prevent a spring 22 described later from hitting the mounting base.
The fixed side mount 1 is provided with one or a plurality of guide means 6 for guiding the movable side mount 2. In the embodiment, the guide means 6 has an interval H through which the movable side mounting base 2 is passed between the upper surface of the cargo side mounting part 3 on both sides of the fixed side mounting base 1 and the plate surface of the fixed side mounting base 1. A plurality of convex portions are provided protruding. Since the movable side mounting base 2 is guided between the fixed side mounting base 1 and the plurality of convex portions 6, the movable side mounting base 2 can be smoothly slid with respect to the fixed side mounting base 1 without moving upward. Can do.

  The detachable cargo loading device for a loading platform such as a bicycle according to the present invention includes a loading platform mounting portion 3 for mounting the loading platform A on the upper surface and a first latching portion 4 for latching the loading platform B on the lower end. A mounting base 1, a movable side mounting base 2 that is provided so as to be movable facing the fixed side mounting base 1, and that has a second hooking portion 5 that is hooked to the cargo bed B at the lower end; The mounting base 1 and the movable side mounting base 2 are provided with an operating means 7, and the operating means 7 can move the movable side mounting base toward or away from the fixed side mounting base. And a mounting base fastening structure 8 capable of fastening the movable side mounting base.

The operating means 7 is for operating a mounting base tightening structure 8 for moving the movable side mounting base toward or away from the fixed side mounting base. The operating means 7 is composed of an operating portion 9a and an operating shaft 9 having a screw portion 9c which can be screwed to the screwing member 11 on the tip end side. The operating shaft 9 of the operating means 7 is rotated in the rotational direction on the fixed side mounting base. It is rotatable and fixed in the axial direction. The length of the screw portion 9c provided on the operating shaft 9 is such that at least the width of the first hooking portion 4 of the fixed side mounting base 1 and the second hooking portion 5 of the movable side mounting base 2 is wider than the width of the cargo bed. The length is longer than the stroke L from the position to the position to be fastened to the loading platform. A shaft until the second latching portion 5 of the movable mounting base 2 hits the other side of the loading platform with the first latching portion 4 of the fixed-side mounting platform 1 applied to one side of the loading platform when the operating means 7 is tightened. It can be moved in the direction.
The operation part 9a on the base end side is provided with a handle part 9a and a cylindrical part 9b which are easily gripped with a circular hand or the like, and are fitted and fixed to the operating shaft 9. The outer diameter of the cylindrical portion 9 b is made larger than the diameter of the support hole 13. It is preferable to provide a plurality of concave surfaces for finger hanging on the outer periphery of the operation portion 9a. Since the operating shaft 9 is rotatably supported in the support hole 13 of the first support plate 12 and is fixed to the fixed side mounting base in the axial direction, the cylinder portion 9b of the operation portion 9a, the first support plate 12, A receiving member 14, such as a washer and a nut, is provided between the two. The receiving member 14 is separate from the cylindrical portion 9b of the operation portion 9a, but may be provided integrally with the cylindrical portion. Or you may make it contact | abut the cylinder part of an operation part directly to a support plate. Alternatively, a receiving portion larger than the diameter of the support hole 13 can be provided on the operating shaft.
The operating portion 9a of the operating shaft 9 protrudes outward from the fixed-side mounting base 1, and when attaching the cargo loading device to the loading platform, the operating portion 9a protrudes outward from the cargo handling A and can be turned by hand. It is preferable to do so. The operation shaft 9 is shown as having a screw portion at the tip, but the present invention is not limited to this, and the entire operation shaft 9 may be a screw thread. When the operation shaft 9 is a screw thread, the operation shaft 9 The tube portion 9b may be screwed and a nut may be fastened and fixed as a receiving member.

The mounting base fastening structure 8 between the fixed side mounting base and the movable side mounting base is:
An operating means 7 having an operating shaft provided with a fixed side mounting base 1 in a rotational direction and fixed in an axial direction and provided with an operating part and a screw part, and the movable side mounting base 2 includes the operating means 7 The screw portion 9c is screwed to convert the rotational movement of the operating means into forward and backward movement, and the forward / backward means 10 provided so as to be able to cooperate with the movable side mounting base, and the fixed side mounting base and the movable side mounting of the operating means. And the urging means 22 mounted between the platforms. The operating means 7 is supported on the fixed side mounting base freely in the rotational direction and receives the movement in the axial direction, and is provided on the movable side mounting base. The movable side mounting base can be tightened against the urging means 22 by screwing with the forward / backward moving means 10.

A specific structure in which the operating shaft 9 is supported by the fixed-side mounting base 1 and the movable-side mounting base 2 and the screwing member 11 is screwed into the screw portion 9c of the operating shaft will be described.
A first support plate 12 having a support hole 13 through which the operating shaft 9 is inserted is fixed to the center of the upper surface of the fixed-side mounting base 1 near one end. In the embodiment, a rectangular frame 15 is integrally formed on the back surface of the first support plate 12, and the back surface of the frame 15 is used as a spring receiving wall 16, and the operating shaft 9 is inserted through the first support plate 12. The support hole 13 and the spring receiving wall 16 are provided with an inverted U-shaped hole 17 through which the operating shaft can be inserted on the same axis as the support hole 13.
A second support plate 18 having a support hole 19 through which the operating shaft 9 is inserted in the same axis as the support hole 13 of the support plate 12 is fixedly provided at the center of the upper surface of the movable mounting base 2, and a second support is provided. A screwing member 11 for screwing the screw portion 9c of the operating shaft 9 to the same axis as the second support plate on the back surface of the plate 18 is fixedly provided in the rotational direction on the movable side mounting base and cooperates in the axial direction. It is provided to be movable.
As a structure in which the screw member 11 is fixedly provided on the movable side mounting base in the rotational direction and is provided so as to be capable of cooperating in the axial direction, the back surface of the second support plate 18 has a distance substantially equal to the outer diameter of the screw member 11 A holding plate 21 is provided to project from the frame plate 20 side with a space corresponding to the thickness of the screwing member 11 between the frame plate 20 and the second support plate 18. The joint member 11 is inserted between the second support plate 18 and the holding portion 21 and is fixedly provided in the rotational direction between the frame plates 20 on both sides, and is provided so as to be able to cooperate in the axial direction. In the screwing member 11, the screw hole 11a is positioned on the same axis as the support holes 13 and 19 of the first support plate 12 and the second support plate 18, and the screw portion 9c of the operating shaft is screwed. A nut is used as the screwing member 11. The frame plate 20 has a width that substantially matches both sides of the outer diameter of the hexagonal nut 11, and the interval between the second support plate 18 and the holding portion 21 is the interval that matches the thickness of the nut 11. (2) The support plate 18, the frame plate 20, and the holding portion 21 are fixedly provided in the rotational direction and the axial direction, and the screw portion 9 c of the operating shaft 9 is screwed. An interval for inserting the screw portion 9c of the operating shaft 9 is provided between the holding portions 21 protruding from the frame plate 20.
The operating shaft 9 having a screw portion 9c is supported on the fixed-side mounting base 1 in the support hole 13 of the first support plate 12 freely in the rotational direction and supported by receiving the movement in the axial direction. The threaded portion 9 c of the operating shaft 9 is screwed into the threaded member 11 so as to be pivotally supported in the support hole 19 of the second support plate 18 of the movable side mounting base 2. Thus, when the operating shaft 9 is rotated, the nut 11 is moved in the axial direction by the action of the screw portion 9c, and the second support plate 18 and the holding portion 21 are moved in the axial direction by a force that moves in the axial direction. The movable mounting base 2 on which the support plate and the holding plate are fixed is slid in the axial direction.

Reference numeral 22 denotes an urging means that urges the first support plate 11 and the second support plate 16 in a separating direction, for example, a spring, and the spring 22 is connected to the spring receiving wall 16 of the first support plate 12 and the second support plate 16. It is mounted around the operating shaft 9 with the support plate 18. The spring 22 has a diameter that does not contact the mounts 1 and 2.
Since the spring 22 is mounted between the first support plate 12 and the second support plate 18, when the operation portion is turned and tightened, the spring 22 is tightened against the pressure of the spring 22. The force acts in a direction that always separates the first support plate 12 and the second support plate 18, and the tightened screw can be prevented from loosening due to vibration or the like. Therefore, when the operating portion is turned to bring the first support plate 12 and the second support plate 18 closer to each other and the latching portion of the fixed side and movable side mounting bases is clamped, the holding of the cargo bed is loosened by the spring force of the spring. Can be held without.

A case will be described in which the detachable cargo-mounting device for a cargo bed according to the present invention is used by being attached to a bicycle cargo bed.
As shown in FIGS. 1 to 10, the operating portion 9 a is rotated, for example, counterclockwise to rotate the operating shaft 9, and the rotation of the screw portion 9 c causes the nut 11 screwed to the nut 11 to be separated in the axial direction. And the distance between the hooking portion 4 of the fixed side mounting base 1 and the hooking portion 5 of the opposed movable side mounting base 2 is set wider than the width of the cargo bed B and fitted. Thereafter, the operating portion 9a is rotated clockwise to move the nut 11 in a pulling direction against the spring 22 by the action of the screw portion, and the movable side mounting base is drawn toward the fixed side mounting base to bring about the first hook. The loading platform is clamped between the stopper and the second hook. Since the operating shaft 9 is tightened against the spring 22, the first support plate 12 and the second support plate 18 are pressed away from each other by the urging force of the spring after tightening, and the screw is held without loosening due to vibration or the like. The
When the cargo bar is not used or when it is used as a hand bag, as described above, the operation part is rotated counterclockwise to widen the interval between the latching parts and remove the entire mounting base. Therefore, since no cargo-loading attachment device is left on the bicycle carrier, the bicycle can be used only on the bicycle, the appearance is good, and a child or the like can be placed on the carrier.

  In addition, the detachable cargo loading apparatus for cargo bed according to the present invention is mounted by holding the fixed side mounting base and the movable side mounting base on the cargo bed at the operation section. In order to prevent it from being removed and stolen, for example, it is desirable to lock a wire or a chain of another locking means on a hole or the like provided in the cargo box and the loading platform.

  Although an example of an embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and can of course be implemented in various modes without departing from the gist of the present invention. is there.

It is a top view which shows the detachable cargo loading apparatus for loading platforms, such as a bicycle of this invention. It is the bottom view. It is the same part fracture side view. It is the same part fracture front view. It is a top view of a fixed side and a movable side mounting stand in an approach state. It is the same part fracture side view. It is a top view of the state which opened and set the latching | hanging part of the detachable cargo loading apparatus for loading platforms of this invention on the loading platform of a bicycle. It is sectional drawing of the state which clamped and fixed the latching part. It is the same top view. It is the same part fracture front view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixed side mounting base 2 Movable side mounting base 3 Cargo mounting part 4 1st latching part 5 2nd latching part 6 Guide means (convex part)
7 Operating means 8 Mounting base tightening structure 9 Operating shaft 9a Operating part 9c Screw part 10 Advance / Retreat means 11 Screwing member (nut)
12 First support plate 13 Support hole 14 Receiving member 16 Spring receiving wall 18 Second support plate 19 Support hole 21 Holding portion 22 Spring 25 Mounting portion 26 Mounting hole 30 Outer frame 31 Inner frame A Load B Load bed

Claims (4)

A fixed-side mounting base having a cargo mounting part for attaching the cargo bar on the upper surface and a first hooking part for hooking the cargo bed on the lower surface end;
A movable side mounting base provided with a second hooking portion that is provided so as to be movable facing the fixed side mounting base and is hooked to the cargo bed at the lower end;
The fixed side mounting base and the movable side mounting base include operating means, and the operating means can slide the movable side mounting base toward or away from the fixed side mounting base. A mounting base tightening structure capable of tightening the movable side mounting base;
A detachable loading attachment device for a loading platform such as a bicycle. The mounting base tightening structure of the fixed side mounting base and the movable side mounting base is:
Operating means having an operating shaft provided with an operating portion and a screw portion on the fixed-side mounting base in the rotational direction and fixed in the axial direction;
The movable side mounting base is screwed with the screw portion of the operating means to convert the rotational movement of the operating means into a forward / backward movement, and forward / backward means provided to be able to cooperate with the movable side mounting base,
A biasing means mounted between a fixed side mounting base and a movable side mounting base of the operating means;
The detachable cargo loading device for a loading platform of a bicycle or the like according to claim 1. The mounting base tightening structure of the fixed side mounting base and the movable side mounting base is:
An operating means having an operating shaft provided with an operating portion and a screw portion;
A first support plate provided on the fixed-side mounting base, which freely supports the operating means in the rotational direction and receives movement in the axial direction;
A second support plate provided on the movable mounting base and supporting the operating shaft of the operating means on the same axis as the first support plate;
A screwing member that is fixedly provided in the rotational direction on the movable side mounting base on the same axis as the second support plate and is capable of cooperating in the axial direction, and screwing the screw portion of the operating shaft;
Biasing means mounted between the first support plate and the second support plate of the operation means;
The detachable cargo loading device for a loading platform of a bicycle or the like according to claim 1 or 2. 4. The loading platform for a bicycle or the like according to any one of claims 1 to 3, wherein the stationary mounting base is provided with one or a plurality of guide means for guiding the movable mounting base that is moved relative to the mounting base. Detachable cargo loading device.

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