JP2013075657A - Carrier attachment for bicycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily achieve the position adjustment (positioning) of a mounting means with respect to even a carrier different in distance between a first frame and a second frame, in mounting a carrier attachment on the carrier by enhancing accuracy to keep firmer mounting against an external force such as vibration or an impact, and to apply those even to a carrier attachment without having favorable dimensional accuracy, in a carrier attachment for a bicycle.SOLUTION: After a second connection means is hooked to a second frame of a carrier, in a state that an engagement part 31b of a movable frame 31 of a first connection means is not engaged with a connection piece 32, the movable frame is moved to hook a hooking part to a first frame of the carrier to be positioned, and thereafter, the connection piece is fixed by a latching part 33 to be engaged with the engagement part of the movable frame with the connection piece, whereby the movable frame is fixed and the carrier attachment is fixed.

Description

  The present invention relates to a cargo bed having a mounting structure for easily attaching and detaching a load carrier mounted on a bicycle cargo bed, which is either a luggage basket, a child seat, or a relay board for attaching a luggage basket, a child seat, or other luggage. It relates to the load.

In the bicycle luggage cage mounting structure described in Patent Literature 1 and Patent Literature 2, all the fixtures are mounted on the luggage cage side, and the luggage cage can be easily attached to and detached from the bicycle carrier. In addition, the carrier can be used for other purposes immediately after the luggage basket is removed, and the luggage basket can be replaced with another bicycle immediately.

The technique described in Patent Document 1 will be considered. The first connecting means is provided at the lower front or lower front of the luggage car, and the second connecting means is provided at the lower part of the luggage car. The first connecting means is composed of a movable frame, a mounting plate, and a spring (biasing portion), the movable frame is coupled with the mounting plate and the spring, and the biasing force of the movable frame is obtained by the spring,
After the second connecting means is inserted into the second frame portion of the loading platform in a direction against the urging force of the first connecting means, the spring of the first connecting means is not biased (or weakly biased). The hook is moved against the urging force until it is hooked on the first frame portion of the loading platform, and then the hook is hooked and fixed in a biased state (lock mechanism). A luggage basket is attached to the loading platform (FIGS. 3 and 6 of Patent Document 1).

The second connecting means is inserted into the second frame part of the loading platform, but the second connecting means is screwed in order to accommodate the difference in the distance between the first frame part and the second frame part. An attachment hole at the lower part of the luggage car attached by tightening is an elongated hole for adjusting the position (FIG. 6 of Patent Document 1). This is a position adjustment mechanism.
In commercialized luggage cages, the position is adjusted by a plurality of holes in order to strengthen the installation. The slight difference in the distance between the first frame portion and the second frame portion of the loading platform is absorbed by the small difference in the elastic biasing force when the movable frame is fixed.

The technique described in Patent Document 2 will be considered. A locking hook having a locking hook and a locking operation mechanism that are engaged with the first and second cargo bed components, and a position adjusting mechanism on one of the hooks.
As a specific technique, a plurality of engaging portions corresponding to the position adjustment range are provided as components of the position adjustment mechanism on the lower surface of the cargo cage on the lock hook side, and a stopper portion is provided as a component of the lock operation mechanism on the lock hook. When the spring piece of the elastic biasing means is in a normal state (non-biased), the stopper part (the surface) is in contact with the engaging part (the surface), and the operating part is operated or some external force is applied. Shows a structure in which when the spring piece of the elastic urging means bends and the stopper part is displaced in a direction away from the engaging part, an elastic urging force as a restoring force works in proportion to the displacement (Patent Document) 2 to FIG. 1 to FIG. 5 or FIG. 7 and FIG.

As another specific technique, two or one elongated holes are provided on the bottom surface of the loading platform on the side of the stopper hook, and the stopper hook is adjusted by two fasteners and fixed (see FIG. 2). 12, FIG. 13), the lock hook projecting downward on the lever body is the second load carrier component in a state where the lever body of the lock operation mechanism on the lock hook side is biased downward by the elastic biasing force. The structure engaged with is shown (FIGS. 14 and 15 of Patent Document 2).

JP 2001-206268 A JP2011-037365

In the mounting structure described in Patent Document 1, the mounting hole at the lower part of the luggage cage to which the second connecting means is mounted by screw tightening is a long hole so that the position can be adjusted. There is a problem that the connecting means is likely to be displaced in the longitudinal direction of the long hole, and the luggage basket is easily detached from the loading platform.
In order to prevent this, the productized luggage cage is adjusted in position with a plurality of holes in order to strengthen the mounting, but cannot be absorbed by the elastic biasing performance of the first connecting means. There is a problem that the hole for attaching the second connecting means by screwing has to be changed each time the load is changed to a loading platform in which the distance between the first frame portion and the second frame portion is different.

In the technique shown in FIG. 1 to FIG. 5 or FIG. 7 and FIG. 10 described in Patent Document 2, the stopper portion is engaged when the height dimension of the stopper portion (triangular teeth) that makes contact with the engaging portion substantially perpendicularly is reduced. There is a problem that it is easy to come off the part.
The first reason is that when the stopper portion, which is a part of the spring piece, is engaged with the engaging portion, the spring piece of the elastic biasing means is in a non-biased state or a relatively small biased state. The spring piece bends and the stopper part is displaced in the direction away from the engaging part.It depends only on the elastic urging force as a restoring force that works in proportion to the displacement, and it is a locking mechanism by engaging only at one place. For this reason, if the height of the stopper portion (triangular teeth) is small, the stopper portion (triangular teeth) is easily affected by external forces such as vibration and impact. The second reason is that the engaging part is attached to the cargo cage side and the stopper part is attached to the locking hook side so that it can be moved together with the cargo cage. This means that it is required to mount with accurate dimensions, but it is never easy. The above two reasons make it difficult to firmly engage the stopper portion and the engaging portion.
On the other hand, if the height dimension of the stopper portion (triangular teeth) is increased in order to make it engage as much as possible, there arises a problem that the position adjustment accuracy becomes coarse. In addition, this technique cannot be applied to a steel cargo cage having a low dimensional accuracy especially for the second reason described above.

In the technique of FIGS. 12 and 13 described in Patent Document 2, the position of the stopper hook is adjusted and fixed by a fastener to a long hole provided in the bottom of the cargo cage. Therefore, there is a problem that the retaining hook is easily displaced in the longitudinal direction of the elongated hole due to a large external force, and the cargo basket is easily detached from the loading platform.
The above-mentioned problems are loads on the cargo bed, which is either a luggage basket, a child's seat, or a relay board for attaching a luggage basket, a child's seat, or other luggage, and a similar installation for easy attachment to and removal from the cargo bed This is a common problem with the load carrying structure.

The present invention solves these problems, and the position adjustment (positioning) of the fixture when mounting the loading platform on the loading platform is performed even on the loading platform having a different interval between the first frame portion and the second frame portion. Mounting structure that can be realized easily and with high accuracy, can hold a stronger mounting against external forces such as vibrations and shocks, and can be applied to a load carrier with poor dimensional accuracy. It aims at providing the loading platform load of the bicycle which has.

The structural features and actions of the invention of claim 1 are shown. The invention according to claim 1 has an attachment structure for attaching and detaching a load carrier mounted on a bicycle carrier, which is either a luggage car, a child seat, or a relay board for attaching a luggage car, a child seat or other luggage. It is a platform loading object, and has a first connecting means that is hooked and coupled to the first frame portion of the loading platform on the lower surface of the loading platform loading, and is substantially the same as the first frame portion on the lower surface of the loading platform loading object. A second connecting means connected to the second frame portion of the loading platform in parallel relation by being hooked in the opposite direction to the first connecting means;
The first connecting means includes a movable frame comprising a hook portion and a hook portion that are hooked on the first frame portion of the loading platform, at least one coupling piece that is hooked with the hook portion of the movable frame, and the hook is released. There are locking parts to prevent them and supports to which these are attached, and either one of the engaging part of the movable frame or the coupling piece has a plurality of engaging parts over the length necessary to position the engaging part. Having a location and the other having at least one engagement location.
After the second connecting means is hooked on the second frame portion of the loading platform, the movable frame is moved and hooked in a state where the engaging portion of the movable frame of the first connecting means and the coupling piece are not hooked. After the part is hooked on the first frame part of the loading platform and positioned, the engaging part of the movable frame and the connecting piece are engaged with each other, and then the connecting piece is fixed directly or indirectly to the support by the detachment preventing part. Thus, even if the shape and height of the engaging portion are small, it acts to securely hold the engaging portion, and it is possible to prevent the movement of the movable frame in the moving direction and fix the loading platform load. Further, the small size of the engaging portion acts so that the connecting portion of the movable frame is positioned with high accuracy.

The structural features and actions of the invention of claim 2 will be described. The invention according to claim 2 is characterized in that the locking portion for preventing the engaging portion of the movable frame and the connecting piece of the first connecting means from coming off is connected to the inner surface of the support body located in the direction in which the engaging portion is released. The movable frame is inserted between the two pieces, or by being inserted so as to fill a space between the lower surface of the load carrier and the coupling piece in a state where the first connecting means is attached to the lower surface of the load carrier. The engagement portion and the coupling piece are engaged with each other, and a space for moving in the direction in which the coupling piece is released is eliminated and fixed, and the detachment prevention portion is held by the support.
When the locking part is inserted and held on the support, the coupling piece is fixed, and even if the shape and height of the engaging part are small, it acts to hold the engaging part securely and the movable frame moves. The load on the platform can be fixed by preventing movement in the direction. Further, the small size of the engaging portion acts so that the connecting portion of the movable frame is positioned with high accuracy.

The structural features and actions of the invention of claim 3 will be described. The invention of claim 3 is such that the cross-sectional shapes of the engaging portion of the movable frame and the engaging portion of the coupling piece cut in the moving direction of the movable frame are substantially the same, in other words, fitting. It is configured.
When the movable frame and the coupling piece are connected by fitting, there is no rattling of the fitting part, there is little damage, and even if the fitting shape size is small, the coupling between the movable frame and the coupling piece is more dense, It acts so as to be strong, and it is possible to more firmly prevent the movement of the movable frame in the moving direction, and the hooking portion of the movable frame is positioned more accurately.

The structural features and actions of the invention of claim 4 will be described. According to a fourth aspect of the present invention, in the first connecting means, the first connecting means includes at least two motion stoppers, and each of the motion stoppers is provided on one side and the other side of the support body in the moving direction of the movable frame. Provided with a spring urging portion between each movement stop portion and the side surface, and a position stop portion for temporarily stopping the position of the movement stop portion on the side resisting the movement of the hooking portion of the movable frame. It is comprised so that it may provide.
The movement stopper is stopped at a position where it is strongly biased in the direction of hooking the hook of the movable frame on the inner surface of the support by the position stopper, and the hook is moved by moving the movable frame. After engaging with the first frame part of the frame, engage the engaging part of the movable frame with the coupling piece, fix the coupling piece with the locking part, and then release the positioning stopper. The urging force of the urging portion acts to absorb the rattling that occurs by the amount of the engaging pitch that is the positioning resolution.

According to the bicycle loading platform of the present invention, the loading platform can be easily attached to and detached from the bicycle loading platform, and the loading platform can be used for other purposes immediately after the loading platform is removed. In addition to being able to replace the bicycle immediately, the position adjustment of the mounting tool when positioning the load on the loading platform (positioning) for the loading platform where the distance between the first frame portion and the second frame portion is different Can be realized easily and with high accuracy, and it can hold a stronger mounting against external forces such as vibrations and shocks. There is an effect that it can be applied.

A conventional luggage car mounting structure (FIG. 3 of Patent Document 1) is shown. A conventional luggage car mounting structure (FIG. 6 of Patent Document 1) is shown. Indicates a bicycle carrier. 1 shows a load carrier (luggage car) of Example 1; 1 shows a load carrier (children's seat) of Example 1. 1 shows a load carrier (relay plate) of Example 1. The 2nd connection means of Example 1 is shown. The external appearance of the 1st connection means of Example 1 is shown. The detail of the 1st connection means of Example 1 is shown. The cross section of the 1st connection means of Example 1 is shown. The other example 1 of a fixing material is shown. The other example 2 of a fixing material is shown. The other example of the fitting part of a movable frame is shown. Another example of the locking part and the coupling piece is shown. An engagement shape and a fitting shape are shown. The detail of the 1st connection means of Example 2 is shown.

FIG. 4 shows the overall configuration of the luggage car 2 as a loading platform, FIG. 5 shows the overall configuration of the child seat 2A as the loading platform, and FIG. 6 shows a store for the store via the relay plate 2B as the loading platform. The whole structure in the case of attaching shopping basket 2Ba to the loading platform 1 is shown. Moreover, the 2nd connection means 4 is shown in FIG. 4 to 7 are common to the first embodiment and the second embodiment. Hereinafter, the luggage car 2 will be described as an example.
In the embodiment, an example in which the engagement of the engagement portion is more closely coupled will be described. Therefore, for the sake of easy understanding, the expressions “engagement” and “engagement” are expressed as “fitting” and “fitting”, and the expression “interaction part 31b” of the movable frame is also expressed as “fitting part 31b”. write.

A first embodiment will be described with reference to FIGS. The second connecting means 4 shown in FIG. 7 is attached to the center of the lower surface of the luggage car 2, and the first connecting means 3 whose appearance is shown in FIG. 8 is attached to the lower front part of the luggage car 2, The connecting means 4 is hooked and connected to the second frame portion 1b at the rear of the loading platform 1, and the first connecting means 3 is a first front portion of the loading platform 1 in a substantially parallel relationship with the second frame portion 1b. The frame part 1a is hooked and connected.
FIG. 9 shows details of the inside of the support 36 outside the first connecting means 3 with the upper surface (lid 36a) or side surfaces removed, and FIG. 10 shows a sectional view thereof. 11 to 15 show another partial example of the first connecting means 3.

The first connecting means 3 has a unit structure in which the movable frame 31, the coupling piece 32, and the anti-separation portion 33, which are constituent elements, are attached to and supported by the support body 36, and have a unit structure. It is attached to the front with screws.
The front end side of the movable frame 31 is a hook portion 31a shaped to be hooked on the central portion of the first frame portion 1a of the loading platform, and is engaged with the coupling piece 32 at a plurality of positions on the rear side of the hook portion 31a. (Hereinafter referred to as “fitting”) is followed by an engaging portion 31b (hereinafter referred to as “fitting portion 31b”), and the fitting portion 31b has a rectangular shape with a cross section perpendicular to the longitudinal direction being a horizontally long rectangle. Yes. The fitting portion 31b has a generally triangular fitting shape on the upper surface and the lower surface as fitting in the vertical direction, and a plurality of fitting portions are provided over the required length. The movable frame 31 is movable in the front-rear direction through the holes 36 c on the front-rear surface of the support 36 when the fitting is disengaged.

  The coupling piece 32 is fitted to the fitting portion 31b of the movable frame 31 to position and fix the movable frame 31 together with the locking portion 33 and the like, and is divided into an upper coupling piece 32A and a lower coupling piece 32B. Each of the coupling pieces 32A and 32B has a groove 32d having a rectangular cross section extending in the front-rear direction, and a plurality of generally triangular fitting shapes are applied to the grooves as fittings in the vertical direction. The part 31b is fitted so as to be sandwiched from above and below. The upper coupling piece 32A and the lower coupling piece 32B are aligned with each other by a guide 32c having one convex portion and the other concave portion. Each coupling piece 32A, 32B is stopped on the front side surface and the rear side surface of the support 36 so as not to move in the moving direction (front-rear direction) of the movable frame 31.

In the first embodiment, the elastic biasing portion 32f is used to positively remove the fitting. On both the contact surfaces of the lower surface of the upper coupling piece 32A and the upper surface of the lower coupling piece 32B, a groove 32e having a quadrangular cross section extending in the front-rear direction in one row on the left and right is provided so that the position of the groove matches The elastic urging portion (leaf spring) 32f is housed in a semicircular shape or a wavy shape. The upper coupling piece 32A and the lower coupling piece 32B are separated by this urging force, and the fitting with the fitting portion 31b of the movable frame 31 is released.

The come-off preventing portion 33 is for preventing the fitting between the fitting portion 31b of the movable frame 31 and the coupling piece 32 from being removed. The front part of the locking part 33 has such a thickness that the space formed between the inner surface of the lid 36a of the support 36 and the coupling piece 32 located in the direction in which the fitting is released when in the fitted state is completely filled, The rear part of the stopper part 33 has a thickness that allows it to be inserted even when the fitting is disengaged. When the front part of the locking part 33 is inserted when the fitting is disengaged, the movable frame 31 is fixed in a fitting state, and conversely, when the locking part 33 is pulled out when it is in the fitting state. When the front part is separated from the coupling piece 32, the upper coupling piece 32A is lifted by the elastic urging portion 32f, the fitting is released, and the movable frame 31 becomes a smooth movable state.
The elastic urging portion 32f improves the operability because the movement of the movable frame 31 is smooth when it is present, but is not an essential component. If the front part is separated from the coupling piece 32 while the release stopper 33 is being pulled out, a space is created above the coupling piece 32 and the position of the coupling piece 32 can be easily changed upward. It is possible to move the movable frame 31 while repeating the jumping operation. As the slant angle of the engaging shape of the engaging part 31b of the movable frame 31 and the coupling part 32 is loosened, or the fitting is made so that the slant angle can be loosened, the movement of the movable frame 31 can be operated.
When the disengagement preventing portion 33 is pulled out until the fitting is released, the disengagement portion 33a hits the support body 36, and the movement of the disengagement prevention portion 33 is once stopped so that it is difficult to pull out from the support body any more.
As described above, the detachment preventing portion 33 is inserted up to the front portion thereof to be fitted, and the coupling piece 32 and the movable frame 31 are fixed. Therefore, if the locking part 33 is held on the support 36 by the fixing member 33d, the locking part 33 can no longer be pulled out, and the coupling piece 32 is securely fixed and the fitting is held.

The fixing member 33d according to the first embodiment tightens the makeup male screw 33dc attached to the female screw base 33db at the center of the attachment plate 33da screwed to the left and right of the front portion of the support 36, and The front end of the cosmetic male screw 33 dc is inserted into the hole 33 b vacated in the vertical direction at the front portion, thereby preventing the movement preventing portion 33 from moving in the front-rear direction. Conversely, the makeup male screw 33 dc is loosened, and the leading end of the makeup male screw 33 dc is removed from the hole 33 b, thereby enabling the movement preventing portion 33 to move in the front-rear direction.

  The procedure for attaching the luggage car 2 is as follows. After the two second connecting means 4 attached to the center of the lower surface of the luggage car 2 are hooked on the left and right parts of the second frame part 1b of the cargo bed 1, the luggage car 2 is placed on the cargo bed 1, and then the luggage The locking part is released until the fitting part 31b of the movable frame 31 and the coupling piece 32 are detached from each other after the fixing of the locking part 33 of the first connecting means 3 attached to the lower front part of the car 2 is released. 33 is pulled out, the movable frame 31 in the movable state is moved forward, and the hook portion 31a on the front tip side is hooked on the central portion of the first frame portion 1a of the loading platform 1. Thereafter, after confirming that the hooked portion 31a of the movable frame 31 of the first connecting means 3 and the hooked state of the second connecting means 4 are not loose, the stopper 33 is inserted to the end. In the middle of this insertion, when the front part of the locking part 33 is inserted, the fitting part 31b of the movable frame 31 and the coupling piece 32 are fitted, the movable frame 31 is fixed, and the luggage car 2 is fixed. When the stopper 33 is held on the support 36 by the fixing member 33d, the luggage car 2 is fixed securely.

FIG. 11 shows another example 1 of the fixing material. The fixing member 33d1 has an operation portion 33d1c and an operation portion lower base 33d1d assembled in a left and right elongated hole 33d1b in the center of a mounting plate 33d1a screwed to the front left and right of the support 36. The upper half of the operation unit lower base 33d1d has a dimensional shape that can pass through the elongated hole 33d1b of the mounting plate, and the lower half has a cylindrical shape that cannot pass. In FIG. 11, when the lever of the operation unit 33d1c is facing right, the upper half of the operation unit lower base 33d1d can pass through the elongated hole 33d1b of the mounting plate, and the entire operation unit is pushed up by the spring 33d1h of the operation unit shaft. The lower half of the lower part base 33d1d is in a position where it does not hit the stopper part 33c of the stopper part 33.
When the operation part 33d1c is pushed down 90 degrees against the elastic force of the spring 33d1h and then rotated clockwise by 90 degrees, when the lever of the operation part 33d1c is directed forward, the upper surface of the upper half of the operation part lower base 33d1d is the mounting plate The entire operation portion is held in a pushed-down position by being caught by the edge of the elongated hole 33d1b, and the lower half of the operation portion lower base 33d1d is in a position where it comes into contact with the stopper portion 33c of the come-off prevention portion 33. This will prevent the portion 33 from being pulled out. At this time, since the concave stopper 33d1e on the mounting plate side and the convex stopper 33d1f on the upper surface of the upper half of the operation portion lower base 33d1d are fitted together, the operation portion 33d1c cannot be easily rotated. That is, the withdrawal of the detachment preventing portion 33 is prevented. A 90-degree rotation stop (convex shape) 33d1g is provided on the lower surface of the mounting plate so that the operation lever does not rotate 90 degrees or more.

FIG. 12 shows another example 2 of the fixing material. The fixing member 33d2 has an operation portion 33d2c and an operation portion lower base 33d2d assembled in a left and right elongated hole 33d2b in the center of a mounting plate 33d2a screwed to the front and left of the support 36. The operating portion shaft 33d2g is dimensioned to pass through the long hole 33d2b of the mounting plate, but the operating portion 33d2c and the operating portion lower base 33d2d are dimensioned to prevent passage. In FIG. 11, when the operation portion 33 d 2 c is on the left side of the long hole 33 d 2 b of the mounting plate, the operation portion lower base 33 d 2 d is in a position where it does not hit the stopper portion 33 c of the come-off prevention portion 33. Conversely, when the operating portion 33d2c is on the right side of the long hole 33d2b of the mounting plate, the operating portion lower base 33d2d is in a position where it comes into contact with the stopper portion 33c of the locking portion 33 and prevents the locking portion 33 from being pulled out. Become.
When the operation portion 33d2c is on the left (right) side of the long hole 33d2b of the mounting plate, the concave stopper 33d2e on the lower left (right) side of the mounting plate 33d2a and the upper left (right) side of the upper surface of the operation portion lower base 33d2d Since the convex stopper 33d2f is fitted, the operation portion 33d2c cannot be easily moved. The thickness of the central portion of the mounting plate is slightly thinner, and the convex stopper 33d2f on the upper surface of the operation unit lower base 33d2d is easy to move.

Although Example 1, Example 1 and Example 2 are given as the fixing material 33d, various other forms are conceivable. There may be a method of generating friction between the detachment preventing portion 33 itself and the support 36, a method of fitting a concavo-convex stopper or a hooking claw. By these methods, unintentional pulling out of the stopper 33 caused by an external force such as vibration can be prevented.

In the first embodiment, the coupling piece 32 is divided into the upper coupling piece 32A and the lower coupling piece 32B. However, if the dimensional accuracy of the support 36 and each component is good, only the upper coupling piece 32A is fitted. It may be. There is an advantage that the thickness dimension of the support 36 is reduced and the size can be reduced.

  In the first embodiment, the fitting portion 31b of the movable frame 31 has a rectangular shape in which the cross section of the surface perpendicular to the longitudinal direction is a horizontally long rectangle, but the shape is not limited to a rectangular shape. For example, as shown in FIG. It may have a rod shape (circular cross section) and a fitting shape on its circumference.

In the first embodiment, the detachment preventing portion 33 includes the inner surface of the lid 36a of the support 36 and the coupling piece 32 that are located in a direction in which the fitting portion 31b of the movable frame 31 and the coupling piece 32 are fitted and disengaged. The first connecting means 3 is inserted into the space between the lower surface of the luggage car 2 and the coupling piece 32 in a state where the first connecting means 3 is attached to the lower surface of the luggage car 2. It may be a thing. However, since the first embodiment shown in FIGS. 8 to 10 and the like can be combined as one closed unit in which the support 36 has the lid 36a, the dimensional accuracy is excellent and stable, so that the steel luggage basket There is an advantage that it can be applied to a luggage basket with poor dimensional accuracy.

  As another example, as shown in FIG. 14, the locking part 33 may be a decorative screw 33 </ b> A (or a butterfly screw) integrated with the coupling piece 32. A procedure for fitting and a procedure for removing the fitting are shown. The shaft support 36b that receives the shaft portion 32g at the rear end of the upper coupling piece 32A has a shape as shown in the sectional view of FIG. At the time of fitting, the upper coupling piece 32A is pushed into the rearmost portion so that the shaft portion 32g at the rear end does not move, and then the decorative screw 33A on the front end side while being fitted into the fitting portion 31b of the movable frame 31. The coupling piece 32 is fixed to the support body 36 by tightening the (preventing part 33). On the other hand, when releasing the fitting, when the decorative screw 33A is loosened, the front portion of the upper coupling piece 32A is lifted by the urging force of the elastic urging portion 32f with the shaft portion 32g at the rear end as a fulcrum, and then the fitting is released. When the upper coupling piece 32A is pulled forward, the shaft portion 32g at the rear end rises along the shape of the shaft support 36b, and the movable frame 31 can move in the front-rear direction.

FIG. 15 shows an example of the fitting shape according to the first embodiment, another example of the fitting shape, and an example of the engagement shape. About the fitting shape of Example 1 shown to Fig.15 (a), the fitting shape in the cross section cut in the movable frame moving direction of the fitting part 31b and the coupling piece 32 of the movable frame 31 of the 1st connection means 3 is. It is generally triangular. Since there is the detachment preventing portion 33, members such as the upper coupling piece 32A, the lower coupling piece 32B, and the fitting portion 31b of the movable frame 31 that are in a fitted state cannot move, so that the breaking strength of the member is reduced in the fitting portion. Unless the excess force is applied, the hooking portion 31a of the movable frame 31 cannot be removed. For this reason, the attachment is strong, and there are few restrictions on the shape as long as it is fitted, and the size can be reduced. In addition, the movement can be prevented in both the front and rear directions, and stable fixation can be ensured.
FIG. 15B shows a semicircular fitting shape as another example. Performance equivalent to triangular fitting.
FIG. 15C shows an example of the engagement shape. In general, a serrated engagement is considered, one of which is a steep slope and the other is a gentle slope, and is configured to prevent movement in a direction in which the steep slopes are pressed against each other. It cannot be configured to prevent movement in the opposite direction (direction in which gentle slopes are pressed against each other). However, according to the present application, this is possible but not a preferred structure.

In the first embodiment, the second connecting means 4 is hooked on the second frame portion 1 b of the loading platform 1 from behind, and the hooking portion 31 a of the movable frame 31 of the first connecting means 3 is the first loading platform 1. Although it is structured to be hooked from the front to the frame part 1a, as another example, the second connecting means 4 is hooked from the front to the second frame part 1b of the loading platform, and the first connecting means 3 It is also possible to adopt a structure in which the hooking portion 31a of the movable frame 31 is hooked on the first frame portion 1a of the loading platform 1 from the rear.
If an engaging shape is applied between the movable frame 31 and the coupling piece 32, in the case of the former hooking method of the first and second connecting means (Example 1), the one shown in FIG. Applied. In the case of the latter method of hooking the first and second connecting means, it is better to reverse the positions of the steep slope and the gentle slope (sawtooth direction).

A second embodiment will be described with reference to FIG. The second embodiment is another example of the first connecting means 3, and the front side motion stop portion 34 </ b> A and the rear side motion stop are respectively provided inside the front side surface and the rear side surface of the support 36 in the moving direction of the movable frame 31. The portion 34B is provided so as to be juxtaposed with the side surface, and a spring urging portion 34d that is urged between each of the movement stoppers 34A, 34B and the side surface is provided, and each of the movement stoppers 34A, 34B is coupled to the lower side The position of the coupling piece 32 is moved up to the positioning resolution position of the movable frame 31 by fitting by the urging force of the spring urging portion 34d by being pressed against the front and rear surfaces of the piece 32B (the movable frame in the fitted state). The position 31 can also be changed slightly.
The upper coupling piece 32A aligned with the lower coupling piece 32B and the guide 32c is longer in the front-rear direction than the lower coupling piece 32B so that the fitting is smoothly released by the urging force of the elastic urging portion 32f. The movement stoppers 34A and 34B do not make strong contact with the upper coupling piece 32A.
The movement stopper 34 (the front movement stopper 34A in the second embodiment) on the side that resists the movement of the hook 31a of the movable frame 31 is temporarily stopped and fixed as a position stopper 34e. A decorative screw is provided. A side surface of the support 36 has a hole 36d through which the screw passes from the outside, and the front movement stopper 34A has a female screw hole 34f. The length of the female screw hole 34f is such that the tip of the screw does not hit the coupling pieces 32A and 32B even if the decorative screw is turned in the tightening direction. Alternatively, a concave shape may be provided on the coupling piece side.

  The hooking procedure of the hooking portion 31a of the movable frame 31 of the first connecting means 3 attached to the lower front portion of the luggage car 2 to the central portion of the first frame portion 1a of the loading platform 1 is as follows. . After releasing the locking part 33 of the first connecting means 3, the locking part 33 is pulled out until the fitting part 31 b of the movable frame 31 is disengaged from the coupling piece 32, and the movable part becomes movable. The frame 31 is moved forward, and the hook portion 31 a on the front tip side is hooked on the center portion of the first frame portion 1 a of the loading platform 1. Thereafter, the decorative screw, which is the position stopper 34e of the movement stopper 34, is turned in the tightening direction to strengthen the movement stopper 34 on the inner surface of the support 36 in the direction of hooking the hook 31a of the movable frame 31. The hooking portion 31a of the movable frame 31 of the first connecting means 3 and the pulling of the second connecting means 4 are stopped at the position biased to the position (in this example, the position close to the inner surface of the support 36). Adjust so that the hanging state is as loose as possible, and after confirming that, insert the stopper 33 to the end. During the insertion, when the front part of the locking part 33 is inserted, the fitting part 31b of the movable frame 31 and the coupling piece 32 are fitted to fix the movable frame 31, but then the decorative screw 34e is loosened. When the position stop is released, the movable frame 31 is fixed without rattling and the luggage basket is fixed. When the stopper 33 is held on the support 36 by the fixing member 33d, the luggage car 2 is fixed securely. In this way, the urging force of the spring urging portion 34d acts to absorb the rattling that occurs for the length of the engagement pitch that is the positioning resolution.

The present invention is used in the industry of manufacturing a load carrying platform which is either a bicycle luggage car, a child seat, or a relay board for attaching a luggage car, a child seat, or other luggage.

DESCRIPTION OF SYMBOLS 1 Loading platform 1a 1st frame part 1b 2nd frame part 1c Outer frame 1d Inner frame 2 Luggage basket 2A Child seat 2B Relay board 2Ba Shop shopping basket 3 First connection means 31 Movable frame 31a Hook 31b Engagement Part (fitting part)
31c handle 32 coupling piece 32A upper coupling piece 32B lower coupling piece 32c guide 32d groove (engagement groove or fitting groove)
32e groove (groove into which the elastic biasing portion 32f enters)
32f Elastic urging portion 32g Shaft portion 33 Detachment portion 33A Makeup screw (or butterfly screw)
33a Stop 33b Hole 33c Stopper (of the stopper)
33d fixing material 33da mounting plate 33db female screw base 33dc makeup (male) screw 33d1 another example of fixing material
33d1a mounting plate 33d1b long hole (for mounting plate)
33d1c Operation part 33d1d Operation part lower base 33d1e Concave stopper (Mounting plate side)
33d1f Convex stopper (lower base side)
33d1g 90 degree rotation stop 33d1h Spring 33d2 Another example of fixing material 2
33d2a mounting plate 33d2b long hole (for mounting plate)
33d2c Operation part 33d2d Operation part lower base 33d2e Concave stopper (mounting plate side)
33d2f Convex stopper (lower base side)
33d2g Operation part shaft 34 Movement stop part 34A Front side movement stop part 34B Rear side movement stop part 34c Stop part 34d Spring urging part 34e Position stop part (decorating screw)
34f Female screw hole 36 Support body 36a Lid 36b Shaft support 36c Hole (Interlocking part 31b of the movable frame 31,
Or a hole through which the fitting portion 31b passes)
36d hole (hole through which screw of decorative screw 34e passes)
4 Second connection means

Claims (4)

A load carrying platform having a mounting structure for attaching and detaching a load carrying platform, which is either a luggage cage, a child seat, or a relay plate for attaching a luggage cage, a child seat, or other luggage, There is a first connecting means that is hooked and connected to the first frame portion of the loading platform on the lower surface of the loading platform, and the loading platform that is substantially parallel to the first frame portion on the lower surface of the loading platform Having second connecting means connected to the second frame portion by being hooked in the opposite direction to the first connecting means;
The first connecting means includes a movable frame comprising a hook portion and a hook portion that are hooked on the first frame portion of the loading platform, at least one coupling piece that is hooked with the hook portion of the movable frame, and the hook is released. There are locking parts to prevent them and supports to which these are attached, and either one of the engaging part of the movable frame or the coupling piece has a plurality of engaging parts over the length necessary to position the engaging part. Having a location and the other having at least one engagement location,
After the second connecting means is hooked on the second frame portion of the loading platform, the movable frame is moved and hooked in a state where the engaging portion of the movable frame of the first connecting means and the coupling piece are not hooked. After the part is hooked on the first frame part of the loading platform and positioned, the engaging part of the movable frame and the connecting piece are engaged with each other, and then the connecting piece is fixed directly or indirectly to the support by the detachment preventing part. A bicycle load carrier mounted on the bicycle, characterized in that it holds the engagement and prevents movement of the movable frame in the moving direction to fix the load carrier load.   A locking portion that prevents the engaging portion of the movable frame of the first connecting means from engaging with the coupling piece is disposed between the inner surface of the support and the coupling piece positioned in the direction in which the engagement is released, or By inserting the connecting means 1 so as to fill a space between the lower surface of the load carrier and the connecting piece in a state where the connecting means is attached to the lower surface of the load carrier, the engaging portion and the connecting piece of the movable frame are The bicycle bed mounting according to claim 1, wherein the bicycle carrier is fixed so that there is no space in which the coupling piece moves in a direction in which the coupling piece is detached, and the stopper is held by the support. object.   The cross-sectional shapes of the engaging part of the movable frame and the engaging part of the coupling piece cut in the moving direction of the movable frame are substantially the same, in other words, they are fitted. The bicycle carrier load according to claim 2. The first connecting means has at least two movement stoppers, and each movement stopper is provided on one side and the other side of the support in the moving direction of the movable frame, A spring urging portion is provided between the stop portion and the side surface, and a position stop portion is provided to temporarily stop the position of the motion stop portion on the side that resists the movement of the hooking portion of the movable frame. ,
The movement stopper is stopped at a position where it is strongly biased in the direction of hooking the hook of the movable frame on the inner surface of the support by the position stopper, and the hook is moved by moving the movable frame. After engaging with the first frame part of the frame, engage the engaging part of the movable frame with the coupling piece, fix the coupling piece with the locking part, and then release the positioning stopper. The bicycle platform load according to any one of claims 1 to 3, wherein the urging force of the urging portion absorbs rattling generated by the amount of the engagement pitch that is the positioning resolution.

Images