JP2000142420A - Small stroller mountable on bicycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small stroller which can be loaded with a baby and operated by pushing, carry the baby while mounted on as bicycle and is constituted in a state of being mountable on and dismountable from the bicycle in a extremely simple manner and suitable for especially the time taking the baby over to the shopping to the shop such as a convenience store comparatively far from the own house. SOLUTION: This small stroller can removably be mounted on a bicycle through a suspension frame B constituted in a state of being attachable to and detachable from the handle 1 of the bicycle C. The frame B is provided with the receiving part 6 for supporting the bottom of the stroller main body 13 provided with the seat 14 for loading the baby and the bottom of the stroller main body 13 can be fixed to the receiving part 6 of the frame attachably and detachably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stroller, that is, a stroller for carrying an infant.

[0002]

2. Description of the Related Art There are various types of baby strollers having different shapes and structures, but recently, a stroller having a foldable structure which is convenient for carrying, transporting, storing and the like has become mainstream.

[0003]

Since a baby stroller is originally a small four-wheeled vehicle that carries an infant and pushes it, and since the user is mainly a mother, for example, a convenience store that is relatively close to the home from an infant can be used. It is suitable for use when taking a shopping trip to a store or taking a stroll around the home, but it is relatively far away from home and a relatively short time if you use a bicycle Although it can go, it is not suitable for use when taking to a store such as a convenience store or a park or other place where a long time is required on foot. Even when going to such a distant place, it is extremely dangerous to leave the infant at home if no one is looking after the infant at home.

Therefore, in recent years, a small chair for carrying an infant formed by assembling metal wires is fixed to a handle portion so that the infant can be easily taken to such a distant place as described above. Bicycles have become commercially available.
However, this kind of bicycle with a small chair is convenient in that the infant can be easily and quickly taken to the destination or destination by putting the infant on the small chair for transporting the infant. After reaching the destination, it is impossible to remove the small chair from the bicycle with the child on it and run it on the ground like a stroller. Therefore, once you reach your destination or destination,
The child must be dropped off the chair. In this case, if the child is a toddler who cannot sleep or is still unable to walk, he / she must always hold the child after dropping it off, so not only is it burdensome, but also shopping for fresh foods such as vegetables and fish, etc. In both cases, both hands were not freely used, which was extremely inconvenient.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and it is possible to carry an infant by mounting it on a bicycle as well as walking by pushing an infant. Provides a small stroller that can be attached and detached very easily, especially suitable for taking an infant when shopping at a convenience store or the like that is relatively far from home. The main purpose is to do so.

[0006]

In order to achieve the above object, a small stroller according to the present invention is detachably attached to a bicycle via a suspension frame detachably mounted on a handle of the bicycle. Wherein the frame includes a holding portion for supporting a bottom portion of the main body of the stroller provided with a seat portion on which an infant is mounted, and the bottom portion of the main body of the stroller is detachably fixed to the holding portion of the frame. It is characterized by having been constituted so that it can be performed.

[0007] In one embodiment of the small stroller according to the present invention, it is desirable that a pair of rear legs of the pair of front and rear legs having wheels are configured to be foldable.

Further, as another embodiment of the small stroller according to the present invention, it is desirable that a pair of left and right handle support members having a handle attached to an upper end portion be configured to be extendable or foldable.

[0009] For other preferred embodiments of the small stroller according to the present invention, refer to claims 4 to 8.

[0010]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIGS. 1 and 2 are side views showing a state in which a small stroller A according to the present invention is detachably attached to a bicycle C via a suspension frame B, respectively.
FIG. 4 is a side view showing a state in which the suspension frame B is suspended from the handle 1 of the bicycle C and connected to a support shaft 2 of the handle via a connecting member 3 to which the frame B is attached. Rear view, FIG. 5 is a side view showing one embodiment of the small stroller A according to the present invention, FIG.
FIG. 6 is a front view of the embodiment of the stroller shown in FIG. 5.

A suspension frame (hereinafter, referred to as a frame) B as a suspension frame is, in the illustrated example,
It has a pair of left and right vertically long frame members 4, 4, and hooks 5, 5 formed by bending the upper portions of the frame members 4, 4, respectively, are engaged with the handle 1 of the bicycle C. The small stroller A is provided with a holding portion 6 for supporting a bottom portion of the main body of the small stroller A, and the holding portion 6 is provided with the pair of left and right when the frame is hung from a handle. A pair of left and right brackets 7, 7 projecting rearward from portions near the lower ends of the vertically elongated frame members 4, 4, respectively.
And a base plate 8 fixed between the pair of left and right brackets. The vertical frame members 4 and 4 are provided with safety hook pieces 5A and 5A, which will be described later, protruding rearward at appropriate positions in the middle portion.

The pair of lower right and left brackets 7, 7 are foldable in the illustrated example.
That is, as can be clearly understood from FIG.
Is a projecting piece 7A projecting rearward from a portion near the lower end of each of the above-described vertically elongated frame members 4, and a base end thereof is pivotally attached to the projecting piece 7A via a pivot 7B so as to be rotatable around a horizontal axis. A base portion of a link-shaped hook member 9 having a hook portion 9A at a distal end is provided at a portion near a base end portion of the support plate 7C. The hook 9A of the hook member 9 is located above the protrusion 7A,
And a tongue piece 1 protruding rearward from the vertically long frame member 4.
1 is releasably locked to a locking pin 12 projecting in the horizontal direction. Therefore, when the hook 9A of the hook member 9 is locked by the locking pin 12, the holding portion 6 projects rearward of the vertically long frame member 4 as shown in FIG. When the hook 9A is unlocked, the hook 9A can be turned upward and folded.

The small stroller A needs to be mounted on the bicycle C and has a size suitable for carrying an infant from 7 to 8 months of age to about 3 years old. The overall size is made smaller than a stroller. 5 and 6 show an example of a small stroller (hereinafter referred to as a stroller),
The stroller A is roughly composed of a main body 13, a seat portion 14 on which an infant is mounted, a pair of front legs 16 having front wheels 15, a pair of rear legs 18 having rear wheels 17, and a handle 19. And a pair of left and right handle support members 20 attached to the upper end.

The stroller body 13 has a pair of left and right side frame portions 13A, 13A having a substantially U-shaped side surface, and a substantially U-shaped plane, and each of the side frame portions 13A, 13A has an upper surface formed with a respective branch portion 13B. ′, 13B ′ to which the upper frame member 13B is fixed.
The side frame portions 13A and 13A and the upper frame member 13B are formed by bending an aluminum tube in the example shown in the figure, but are formed of a hard synthetic resin material. You may do so. Stroller body 13
Has a bottom portion 13C on which the stroller A is seated on the holding portion 6 of the frame B, and the bottom portion 13C is a lower frame portion 13A of the both side frame portions 13A, 13A in the illustrated example. , 13A 'and a bottom plate 13C' fixed between the two lower frame portions.

The bottom 13C of the stroller body 13 described above.
The bottom plate 13C ', which constitutes a main part of the frame B, is provided with an engaging member capable of engaging with the engaging portion provided on the holding portion 6 of the frame B,
The bottom portion 13C of the stroller body 13 can be detachably fixed to the holding portion 6 of the frame B by engaging the engaging member with the engaging portion of the holding portion 6 described above. In the stroller A shown in FIGS. 5 and 6, the engaging member as the engaging means is four engaging projections having a spherically bulging head 21A projecting downward from the lower surface of the bottom plate 13C '. It consists of 21. On the other hand, as shown in FIGS. 9 and 10, the engaging portion of the holding portion 6 of the frame B for engaging the engaging projections 21 is provided on the base plate 8 and has a slit 22A. And a hollow truncated cone 22C having an elastic fitting hole 22B for engagement.
It is composed of two elastic cylinders 22. Therefore, the former and the latter are elastically fitted to each other by press-fitting the head 21A of the engaging projection 21 into the elastic fitting hole 22B of the conical body 22C, so that the bottom 13C of the stroller main body 13 is framed. B can be easily and reliably locked and fixed to the supporting portion 6.

FIGS. 11 and 12 show modifications of the engagement projection 21 of the stroller A shown in FIGS.
In the stroller A, the engaging projection 23 of this modified example can be adopted instead of the engaging projection 21. In the illustrated example, two engagement projections 23 in this modified example are provided. Each of the engagement protrusions 23 is an elongated fitting body having a pair of elastic engagement portions 23B, 23B extending on both sides of the slit 23A, and the bottom plate 13 of the stroller main body 13 described above.
At the lower surface of C ', a predetermined interval is provided in the front-rear direction, and the projections are suspended and provided in parallel with each other. FIG. 13 corresponds to FIG. 11 and FIG.
2 shows a base plate 8 provided with two elongated fitting holes 24 for elastically fitting the engaging projections 23, 23 respectively shown in FIG. Therefore, also in this case, if the elastic engagement pieces 23B of the engagement protrusions 23 are press-fitted into the fitting holes 24, respectively, the former and the latter elastically fit together, as shown in FIG. The stroller body 13 is easily and securely locked and fixed to the support portion 6 of the frame B.

The connecting member 3 for connecting the frame B to the support shaft 2 of the handle 1 of the bicycle C is, in the illustrated example, a strip extending between the pair of left and right vertically long frame members 4 described above. A band 3B fixed to the front surface of a central portion of the frame-shaped horizontally long frame member 3A, and a wing bolt / nut 3C for fastening both ends of the band 3B to each other.
By tightening both ends of the band with the wing bolts and nuts while the handle support shaft 2 is slidably held by B, the frame B can be removably connected to the handle support shaft 2. It has become.

A pair of rear legs 1 of the stroller A described above.
8 and 18 show the configuration shown in FIG. 1 so that the stroller A is mounted on the bicycle C via the frame B and the bicycle C is depressed with its pedal P so as not to hinder the depressing operation of the pedal P. As shown, it is configured to be foldable. In the illustrated example, the rear leg 1
8 and 18 are lower frame portions 13 of the stroller body 13.
A 'and 13A' are supported by joint joints 18A fixed to the respective rear ends of the joint joints 18A 'via shaft pins 18A' so as to be able to swing back and forth, respectively.
The rear legs 18, 18 extend obliquely rearward and downward as shown in FIGS. 2 and 5 when the rear legs 18, 18 abut against the stopper 18A ''. Then, it is in an expanded state.

Reference numeral 25 designates a pair of support members for locking the rear legs 18, 18 in the expanded position together with the stopper portion 18A ".
At its upper end, a pair of front legs 1
6 and 16 are pivotally supported in the front-rear direction via a pivot 16A 'at a joint joint 16A fixed to the upper end of each of the upper and lower ends of the joints 16A. , So that it is detachably fixed to each of the rear legs 18, 18. Then, when the fastening tool 25A is loosened and the rear legs 18, 18 are removed from the support member 25 and pushed forward, the rear legs 18, 18 are folded forward as shown in FIG. The strut member 25 is folded forward in a similar manner. The rear legs 18, 18 or the strut members 25 folded in this way are latched (not shown) incorporated in the joints 18A, 16A, respectively, as shown in FIG.
Locked in the collapsed position shown in.

The above-mentioned pair of handle support members 20, 2
0 is a pivot 1 at an intermediate portion between lower frame portions 13A ', 13A' of both side frame portions 13A, 13A of the stroller body 13.
Front legs 16, 1 respectively pivotally connected via 6B
Outer tubes 20A, 2A, 2
0A and inner tubes 20B, 20B slidably fitted to the outer tubes 20A, 20A. When driving the bicycle C with the stroller A mounted on the bicycle C via the frame B, In order to prevent the stroller handle 19 or its support members 20, 20 from hindering the operation of the stroller, the stroller 19 can be gripped in a natural walking posture that is reasonable when a baby is pushed and walked. Therefore, by sliding the inner tube 20B inside the outer tube 20A, the length of the handle support members 20, 20 and, therefore,
The height of the handle 19 can be adjusted. Reference numeral 20C denotes a set screw screwed into a screw hole of the outer tube 20A. The inner tube 20B can be locked at a desired position by screwing the set screw 20C forward and backward. .

The seat section 14 for carrying an infant mounted on the stroller body 13 is suitable for the illustrated example. In order to ensure the safety of the infant, the seat section 14A, the side seat section 14B, and the backrest section 14C are provided. And a crotch band 14D for preventing the infant from dropping forward. The crotch band 14D is made of a flexible band-like piece, the base end of which is fixed to the front end of the seat portion 14A, and the other end of which is the front end of the fork 13B ', 13B' of the U-shaped upper frame member 13B. Connecting pipe section 13 for connecting the sections
B "is detachably fixed to the band portion near the base end.

The safety hook pieces 5A, 5A provided on the vertically elongated frame members 4, 4 of the frame B are provided to secure the stability or safety of the mounting state of the stroller A to the frame B, that is, to the bicycle C. When the bottom portion 13C of the stroller body 13 is locked and fixed to the holding portion 6 of the frame B, as a part of the fixing operation, the stroller A is directly or via a connection member such as a hook. B. In the illustrated example, the stroller body 13 described above is used.
The stroller A is held on the frame B by directly engaging the connecting pipe portion 13B "of the U-shaped upper frame member 13 with the safety hook pieces 5A, 5A.
As described above, the stroller A is configured such that the engagement protrusion 21 or 23 of the bottom portion 13C of the main body 13 is
Can be securely locked and fixed to the holding portion 6 of the frame by a simple operation of merely pressing the elastic hook hole 22B or the fitting hole 24 into the fitting hole 24B. In the event that the engaging projection is disengaged from the fitting hole by any means, it is held by the safety hook pieces 5A and 5A, so that the falling off is prevented. In addition, it is possible to effectively prevent the danger of injury to the infant due to falling off.

In order to remove the stroller A from the bicycle C, the stroller A is pulled up in the state shown in FIG. 1 or 2 to engage with the holding portion 6 of the frame B and engage with the safety hook pieces 5A, 5A. All you have to do is release
Extremely simple. Also, after removing the connection band 3B from the handle support shaft 2 by loosening the bolts and nuts 3C, the frame B is pulled up, and the stroller A is left mounted on the frame B from the bicycle C. It can be removed, and removal from the frame B may be performed later. Frame B removed from bicycle C
Can be folded flat by releasing the engagement between the hook portion 9A of the link-shaped hook member 9 and the locking pin 12 and rotating the holding portion 6 upward. Since the frame B is compact when folded in this manner, a large space is not required for storage.

The frame B is a stroller A carrying an infant.
In order to sufficiently withstand the load received when the device is mounted, in the illustrated example, it is made of a rigid thin strip steel plate, and the protrusions 7A, 7A and 1
Reference numerals 1 and 11 denote horizontal frame members 5B and 5C erected between the vertical frame members 4 and 4 in order to enhance load resistance.
Are formed integrally with each other.

As described above, the embodiments of the present invention have been described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments, but may be modified within the scope described in the claims. It can be implemented with various modifications. For example, instead of a stroller body having a structure formed by assembling tube materials bent as shown in the figure,
It is also possible to use a box-shaped resin material in which the bottom portion, both side portions and the backrest portion are integrally formed of a compatible resin material.

Since the present invention is configured as described above, it is possible to carry the infant by attaching it to a bicycle via a suspension frame, as well as being able to push and walk with the infant. A small stroller that can be attached and detached to and from a bicycle very easily can be obtained, especially when taking an infant when shopping at a convenience store or the like that is relatively far from home. Things. The suspension frame is detachable from the handle of the bicycle and can be compactly folded, so that it can be folded and stored in a relatively small space when not in use, which is extremely convenient. is there.

[Brief description of the drawings]

FIG. 1 is a side view showing a state in which a small stroller according to the present invention is detachably attached to a bicycle via a suspension frame, and a rear leg having a rear wheel is folded. FIG. 2 is a side view similar to FIG. 1 showing a state in which a rear leg is expanded. FIG. 3 is a side view showing a state where the suspension frame is suspended from the handle of the bicycle and connected to a support shaft of the handle via a connecting member attached to the frame. FIG. 4 is a rear view of the suspension frame shown in FIG. FIG. 5 is a side view showing one embodiment of the small stroller according to the present invention. FIG. 6 is a front view of the embodiment of the stroller shown in FIG. FIG. 7 is a bottom view showing the shapes and arrangements of the engagement projections projecting downwardly from the bottom plate of the pebble car main body. FIG. 8 is a sectional view taken along the line AA in FIG.
Sectional view by line. FIG. 9 is a plan view showing the shape and arrangement of members having elastic fitting holes provided in the base plate of the holding portion of the suspension frame. FIG. 10 is an enlarged cross-sectional view showing an elastic fitting state of the engaging projection shown in FIG. 8 and the elastic fitting hole shown in FIG. 9. FIG. 11 is a bottom view similar to FIG. 7 showing another example of the engagement protrusion. FIG. 12 is a cross-sectional view taken along line BB ′ in FIG. 11 showing the shape of the engagement protrusion. FIG. 13 is a plan view showing the shape and arrangement of fitting holes provided in the base plate of the holding portion in the suspension frame. FIG.
FIG. 14 is an enlarged cross-sectional view showing an elastic fitting state of the engaging projection shown in FIG. 13 and the fitting hole shown in FIG. 13.

[Explanation of symbols]

 Reference Signs List A Small stroller B Suspension frame C Bicycle 1 Bicycle handle 2 Handle shaft 3 Connecting member 4 Vertical frame member 5 Hook piece 5A Safety hook 6 Holder 7 Bracket 8 Base plate 13 Stroller body 13A Side frame 13A 'lower part Frame member 13C 底 Bottom portion of beaker body 13C 'bottom plate 19 Handle of stroller 20 Handle support member 21 Engagement projection 22B Elastic fitting hole 23 Engagement projection 24 Fitting hole

Claims (9)

[Claims] 1. A small stroller adapted to be detachably attached to a bicycle via a suspension frame detachably configured on a handle of the bicycle, wherein the frame is provided with a seat portion for carrying an infant. A supporting portion for supporting a bottom portion of the main body,
A small stroller characterized in that the bottom of the stroller body can be detachably fixed to the holding portion of the frame. 2. A small stroller adapted to be detachably attached to a bicycle via a suspension frame detachably mounted on a handle of the bicycle, wherein the frame is provided with a seat portion for carrying an infant. A supporting portion for supporting a bottom portion of the main body,
An engaging member is provided at the bottom of the stroller body, the engaging member being capable of engaging with an engaging portion provided on the holding portion of the frame. A small stroller characterized in that the bottom of the stroller body can be detachably fixed to the holding portion of the frame. 3. A pair of front and rear legs having wheels.
The stroller according to claim 1, wherein the pair of rear legs are configured to be foldable. 4. The small stroller according to claim 1, wherein the support members of the pair of left and right handles, each of which has the handle attached to the upper end thereof, are configured to be extendable or foldable. 5. The suspension frame has a pair of left and right vertically elongated frame members, and a hook formed by bending each upper end portion of each of the frame members is engaged with a handle of the bicycle so as to be disengaged from the handle. The frame is supported so as to be supported, and the holding portion of the frame for supporting the bottom of the stroller main body is provided from each lower portion of the pair of left and right vertical frame members in a state where the frame is suspended from the handle. The small stroller according to any one of claims 1 to 4, wherein the small stroller comprises a bracket projecting rearward and a base plate fixed between the pair of left and right brackets. 6. The stroller body has a bottom portion comprising a lower frame portion of a pair of left and right side frame portions of the stroller body, and a bottom plate fixed between the lower frame portions. The small beaker according to any one of 1 to 5. 7. The small stroller according to claim 1, wherein the engagement member provided on the bottom of the stroller body has one or more engagement projections protruding from a lower surface of the bottom plate. An engaging portion provided on the holding portion of the frame is provided on the base plate, and one or a plurality of engaging portions are formed so as to be elastically fitted to the engaging protrusions. A small stroller comprising an elastic fitting hole or a fitting member. 8. The compact device according to claim 1, wherein the suspension frame is detachably connected via a connecting member around a support shaft of the handle of the bicycle. stroller. 9. The suspension frame according to claim 1, further comprising a safety hook for holding the stroller directly or via a connecting member such as a hook. Small stroller.