JP4723349B2 - Connecting structure for infant vehicle with auxiliary operation rod and infant vehicle with auxiliary operation rod using the same - Google Patents

Description

  The present invention relates to an infant vehicle such as an infant motorcycle (infant bicycle), an infant tricycle, an infant vehicle equipped with a foot pedal, and the like. The present invention relates to a connection structure for an infant vehicle with an auxiliary operation rod provided with an auxiliary operation rod capable of assisting the child, and an infant vehicle with an auxiliary operation rod using the same.

  A general infant vehicle has a structure in which the front wheel is steered by a handle, the rear wheel is rotated by stepping on the pedal with both feet, and the braking force is applied to the rotation of the wheel by operating a brake lever provided on the handle. However, these infant vehicles are configured so that the infant can drive on their own, and when the guardian applies driving force by pushing from behind, the guardian tilts the posture forward and pushes the loading platform. Since the rear part of the vehicle body was pushed, the guardian had to take an unnatural posture, which caused problems such as low back pain.

  In order to solve this problem, the present inventor inserts a support shaft of a handle into a handle boss provided in front of a main body frame of an infant vehicle and supports the handle in a rotatable manner. The lower portion of the auxiliary operation rod that extends upward and obliquely rearward is inserted into the holding portion provided at the rear, and the auxiliary operation rod is rotatably supported. Have already been filed for an infant vehicle with an auxiliary operation rod in which the auxiliary operation rod and the handle are synchronized and interlocked with each other with a connector (for example, Patent Document 1). .

Specifically, the connecting tool fixes one wire operation plate to the lower end of the support shaft of the handle, and fixes the other wire operation plate to the lower end of the auxiliary operation rod. By connecting with two push bull wires, the auxiliary operating rod and the handle are synchronized and interlocked.
Infant vehicle described in JP 2004-314684 A

  However, since the conventional connector has a structure in which both wire operation plates are connected by two push-bull wires, the operation of the auxiliary operation rod and the handle operation of the infant vehicle are not completely synchronized with each other. There is a problem that so-called “play” tends to occur.

  In particular, the push bull wire is attached to the main body frame so as not to interfere with pedaling, and the push bull wire is not installed in a tensioned state, so that the play is likely to occur. There is.

  On the other hand, since it is an infant who rides on an infant vehicle, it is often the case that a guardian performs a sudden handle operation that is not expected by the guardian. Therefore, there is a desire to completely eliminate the “play” so that it can be dealt with directly.

  In addition, the infant vehicle with an auxiliary operation rod can be used in the same manner as a general bicycle if the auxiliary operation rod is removed as the child grows up. By the time it is exceeded, there are often occasions where the auxiliary operating rod and the connecting tool are attached or removed.

  However, in the structure using the conventional push-bull wire, the structure of the connector is a little complicated, and there is a problem that it takes time and effort to easily attach and remove it.

  The present invention aims to solve such a problem, and the operation of the auxiliary operating rod and the handle operation of the infant vehicle can be completely synchronized without causing play, and Provided is a connection structure for an infant operation vehicle with an auxiliary operation bar that can be easily attached and detached, and an infant operation vehicle with an auxiliary operation bar using the same.

In order to achieve the above object, in the connection structure for an infant vehicle with an auxiliary operation lever according to the present invention, a handle support shaft is fitted into a handle boss provided in front of the main body frame of the infant vehicle, The handle is rotatably supported, and the auxiliary operation rod can be rotated by inserting a lower portion of the auxiliary operation rod extending upward and obliquely rearward into a holding portion provided at the rear of the main body frame. A connecting structure for an infant vehicle with an auxiliary operation rod in which the auxiliary operation rod and the support shaft of the handle are connected by a connecting tool, and the auxiliary operation rod and the handle are synchronized with each other. The connecting tool extends to the side of the support shaft of the handle and extends to the side of the lower end of the auxiliary operation rod, and the support projecting piece having a shaft hole portion at the appropriate position. In front of the operation rod projecting piece with a shaft hole in the front of the rod-shaped body A rigid housing provided with a front mounting portion and a rear mounting portion that can be attached to and detached from the support shaft projecting piece and the operation rod projecting piece at the rear end, the support shaft projecting piece and the front mounting portion, and the operation And a fitting for pivotally attaching the projecting piece and the rear attachment portion, respectively , and the attachment includes a rotary shaft having a bolt shaft penetrating the shaft hole portion and the front attachment portion, and the bolt shaft. And at least a nut to be screwed together, and the rotating shaft and the nut, the supporting shaft protruding piece and the front mounting portion, and the operating rod protruding piece and the rear mounting portion are rotatably mounted respectively. Either the rotary shaft or the nut is fixed to the operation rod projecting piece in advance .

  That is, in this invention, it is comprised in the structure which connected the spindle protrusion provided in the spindle, and the operation rod protrusion provided in the lower end of the auxiliary operation rod with the rod-shaped hard housing.

  Therefore, when the support shaft of the handle is rotated, the rigid housing moves back and forth at the same time as the rotation of the support shaft. And a series of these operations can be perfectly synchronized without any play between the operation of the auxiliary control rod and the operation of the infant vehicle, resulting in the sudden handle of the infant. The guardian can respond directly to the operation.

  Here, the rod shape means a solid or hollow round bar or flat plate, or a long combination of these, and the hard casing is made of a metal such as iron, aluminum, stainless steel or the like. In addition to the housing, a housing formed of a hard resin such as plastic is also included.

  Further, the surface of the hard casing may be colored. For example, if it is colored corresponding to the body frame of the infant bicycle, it can be used in a state where the aesthetic appearance is improved without any sense of incongruity in design. .

  With such a bolt-shaped rotating shaft and nut screwing structure that is widely used as an attachment, even a person who is not good at assembly work can easily attach or remove it.

  However, the rotation shaft and nut need only be able to pivotally mount the support shaft projection piece and the front mounting portion, and the operating rod projection piece and the rear mounting portion, and only one end or upper and lower ends of the rotation shaft. It is also possible to form a screw thread and to engage the nut from one end or both ends.

  Further, if a locking portion is provided on one of the rotating shafts and a cap that can be locked is fitted to the locking portion, the rotating shaft and the nut can be supported by simply engaging and disengaging the cap with one touch. The shaft projecting piece and the front mounting part, and the operation rod projecting piece and the rear mounting part can also be rotatably mounted.

In addition, since either the rotating shaft or the nut is fixed in advance to the support shaft protruding piece and / or the operating rod protruding piece, only one of the rotating shaft or the nut is attached during the attaching operation or the removing operation. Therefore, the workability can be further improved.

  By the way, in the connection structure of the infant vehicle with an auxiliary operation rod according to the present invention, a bent escape portion is formed at an appropriate position of the rigid housing so as not to obstruct the passenger. desirable.

  In other words, the rigid housing may be a straight rod, but when the auxiliary operating rod and the handle shaft are connected by a rigid housing, the rigid housing is used when the passenger pedals a bicycle pedal or the like. There is a risk of the body getting in the way.

  On the other hand, since the rigid housing cannot be bent easily as in the case of a conventional push-bull wire, it is desirable to form a relief portion by bending in advance so as not to disturb the passenger.

  Specifically, when the front mounting portion and the rear mounting portion provided at the front and rear ends of the rigid housing are rotatably attached to the support shaft projecting piece and the operating rod projecting piece, respectively, the main body portion of the rigid housing is The escape portion is formed so as to be close to the main body frame of the infant vehicle. Since the main body frame is generally designed not to interfere with the passenger, if the main body portion of the hard casing is brought close to the main body frame, it does not interfere with the passenger.

  The present invention also provides an infant vehicle with an auxiliary operation bar provided with the above-described connection structure for an infant vehicle with an auxiliary operation bar.

  Specifically, a handle boss is provided in a handle boss provided in front of the main body frame of the infant vehicle so as to rotatably support the handle, and a holding portion provided at the rear of the main body frame. The lower part of the auxiliary operation rod that extends upward and obliquely rearward is inserted into and supported so that the auxiliary operation rod can be rotated, and the auxiliary operation rod and the support shaft of the handle are connected to each other. In the infant vehicle with an auxiliary operation rod, which is connected with a tool and the auxiliary operation rod and the handle are synchronized with each other, the connection device is extended to the side of the support shaft, and a shaft hole is formed at an appropriate position. The support shaft projecting piece which opened the part, the operation operation projecting piece which is extended to the side of the lower end of the auxiliary operation rod and opened the shaft hole at the appropriate position, and the front and rear ends of the rod-shaped main body, Rigid rod provided with a front mounting portion and a rear mounting portion that can be attached to and detached from the spindle protruding piece and the operation rod protruding piece, respectively. And providing a vehicle for an infant with an auxiliary operation rod having a structure comprising the support attachment piece and the front attachment portion, and an attachment that can attach and detach the operation rod protrusion piece and the rear attachment portion, respectively. Yes.

  Therefore, in the infant vehicle with an auxiliary operation lever of the present invention, the above-described effects can be effectively exhibited in an infant motorcycle (infant bicycle), an infant tricycle, an infant vehicle equipped with a foot pedal, and the like. is there.

According to the present invention, the following effects can be obtained.
According to the connection structure for an infant vehicle with an auxiliary operation rod according to claim 1, the support shaft protruding piece provided on the support shaft and the operation rod protruding piece provided on the lower end of the auxiliary operation rod are made of a rod-like rigid housing. As it is a connected structure, it can be perfectly synchronized without any play between the operation of the auxiliary operating rod and the steering wheel of the infant vehicle. There is an effect that the person can respond directly.

  Further, in the present invention, the support shaft projecting piece and the front mounting portion, and the operation rod projecting piece and the rear mounting portion have a simple structure mounted with a mounting tool, so that the mounting tool is attached or removed. It is possible to easily attach and detach the connector simply by doing.

Moreover, since the fixture has a structure including a rotating shaft and a nut, the fixture can be easily attached and detached using a general tool such as a spanner or a monkey wrench.

Furthermore, since either the rotating shaft or the nut is fixed to the support shaft protruding piece and / or the operation rod protruding piece in advance, it is possible to save the trouble of attaching or detaching either the rotating shaft or the nut. In addition, there is an effect that it can be easily attached and detached.

In addition, according to the connecting structure of the infant vehicle with an auxiliary operation rod according to claim 2 , a bent escape portion is formed at an appropriate position of the rigid housing so as not to obstruct the passenger. As a result, there is no risk that the passenger will be caught by the rigid housing during the front / rear movement of the rigid housing, and the vehicle can be driven safely.

According to the auxiliary operation-slider infant vehicle according to claim 3, is provided with the coupling structure of the auxiliary operation-slider infant vehicle according to claim 1 or 2, the effect according to claim 1 or 2 It can be effectively demonstrated as an infant vehicle with an auxiliary operation bar.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a connection structure for an infant vehicle with an auxiliary operation bar and an infant vehicle with an auxiliary operation bar using the same according to the present invention will be described with reference to the drawings.

  FIG. 1 is an overall side view schematically illustrating an infant vehicle with an auxiliary operation rod using the connection structure for an infant operation vehicle with an auxiliary operation rod according to the present invention, and FIG. 2 is surrounded by a dotted line B in FIG. FIG. 3 is an exploded perspective view in which a main part on the handle side of the connection structure in the infant vehicle with an auxiliary operation bar is enlarged, and FIG. It is the disassembled perspective view which expanded the principal part by the side of an operating rod. 4 is an overall view of the rigid housing shown in FIGS. 1 to 3, FIG. 4 (a) is a plan view of the rigid housing, and FIG. 4 (b) is a side view of the rigid housing. Respectively.

  Hereinafter, the present invention will be described with reference to FIGS. 1 to 4, but members common to FIGS. 1 to 4 are denoted by the same reference numerals, and redundant description will be omitted.

  In this embodiment, the infant vehicle A is described as an example of a two-wheeler for infants (a bicycle for infants). However, the present invention is not limited to this, and a tricycle for infants and a foot pedal are used. The present invention can also be applied to infant vehicles such as infant cars provided.

  This infant vehicle A is provided with a handle boss 11 at the front end of the main body frame 1. A support shaft 21 of the handle 2 is fitted into the handle boss 11 to rotatably support the handle 2. A front wheel 3 is pivotally attached to the lower end of the support shaft 21 in a rotatable manner.

  On the other hand, on the rear side of the main body frame 1, a saddle tube 12 that supports the column 41 of the saddle 4 is erected, and the frames 6, 7 are directed from the upper and lower ends of the saddle tube 12 toward the center of the rear wheel 5. Each frame is constructed, and the rear ends of both frames 6 and 7 are pivotally attached to the center of the rear wheel 5 so that the rear wheel 5 is rotatably supported.

  A pedal (not shown) for rotationally driving the rear wheel 5 is pivotally attached to the lower end of the saddle tube 12, and the pedal and the rear wheel 5 are connected by a chain (not shown) to rotate the pedal. Although the structure is such that the rear wheel 5 is rotated by force, the pedals and the like are omitted in FIG. 1 in order to clarify the connection structure of the present invention.

  Further, a tubular holding portion 8 is welded upward and obliquely rearward to the rear of the main body frame 1, and a lower shaft 91 of the auxiliary operation rod 9 is inserted into the holding portion 8 so that the auxiliary operation rod 9 is rotatably supported.

  Then, the lower end of the lower shaft 91 of the auxiliary operating rod 9 and the support shaft 21 of the handle 2 are connected by a connector 100, and the auxiliary operating rod 9 and the handle 2 are synchronized and interlocked. .

The structure of the connector 100 will be described in detail with reference to FIGS.
The connecting tool 100 extends to the side of the support shaft 21 and extends to the side of the lower end of the lower shaft 91 of the auxiliary operating rod 9 and the support projecting piece 101 having a shaft hole portion 111 at an appropriate position. The front and rear ends of the operation rod projecting piece 102 having the shaft hole portion 112 opened at the appropriate position and the front and rear ends of the rod-like main body portion 113 can be attached to and detached from the support shaft projection piece 101 and the operation rod projection piece 102. And the rigid housing 103 provided with the rear attachment portion 133, the support shaft protrusion piece 101 and the front attachment portion 123, and the operation lever protrusion piece 102 and the attachment portion 200 for attaching the rear attachment portion 133 in a rotatable manner. It is configured.

  The fixture 200 is provided with a rotary shaft 201 having a bolt shaft 211 that passes through a shaft hole 123 a formed in the shaft hole portion 111 and the front mounting portion 123, and a screw groove 212 that is screwed into the bolt shaft 211. And at least a nut 202.

  Here, a square block portion 221 is formed at the upper end of the bolt shaft 211, and the upper surface of the shaft hole portion 112 of the operation rod projecting piece 102 is formed in a square shape so as to block the operation rod projection piece 102. The part 221 is fitted and the idle rotation of the rotating shaft 201 is regulated.

  In addition, washers 203 and 204 that penetrate the bolt shaft 211 are provided above and below the front mounting portion 123 to make the front mounting portion 123 rotate smoothly. Since the front mounting portion 123 is easily damaged by contact with the washers 203 and 204, in this embodiment, the surface of the front mounting portion 123 is covered with a resin to prevent the front mounting portion 123 from being damaged. The rotation of 123 is configured to be smoother.

  Further, a spring washer 205 or a spring washer 225 is interposed between the lower washer 204 and the nut 202 to prevent loosening after the nut 202 is tightened.

  The fixture 200 configured as described above penetrates the bolt shaft 211 of the rotating shaft 201 into the shaft hole portion 111 and fits the block portion 221, and then the washer 203, the shaft hole 123 a, and the washer are fitted to the bolt shaft 211. 204, by sequentially passing through the spring washer 225 and screwing the nut 202 from the lower end of the bolt shaft 211, the support shaft projecting piece 101 of the support shaft 21 and the front mounting portion 123 of the rigid housing 103 can be rotatably mounted. It can be done.

  Although not shown, either the rotary shaft 201 or the nut 202 can be fixed to the support shaft protruding piece 101 by welding or the like in advance. Since the trouble of attaching or detaching any one of these can be omitted, the attachment tool 200 can be attached and detached more easily.

  By the way, as shown in FIG. 3, the rear mounting portion 133 of the rigid housing 103 and the operating rod projecting piece 102 can be mounted so as to be rotatable in the same manner as described above. Therefore, it is omitted.

  According to the structure for connecting an infant vehicle with an auxiliary operating rod according to the present invention configured as described above, the supporting shaft protruding piece 101 provided on the supporting shaft 21 of the handle 2 and the operating rod provided at the lower end of the auxiliary operating rod 9. Since the projecting piece 102 is connected by a rod-like rigid housing 103, it is perfectly synchronized without any play between the operation of the auxiliary operation rod 9 and the operation of the handle 2 of the infant vehicle A. As a result, the guardian can respond directly to the sudden handle 2 operation of the infant.

  In addition, the spindle protruding piece 101 provided on the spindle 21 of the handle 2, the front mounting portion 123 of the hard casing 103, the operating rod protruding piece 102 of the auxiliary operating rod 9, and the rear mounting portion 133 of the hard casing 103, Since it is a simple structure attached with the attachment tool 200, the attachment tool 100 can be easily attached or detached only by attaching or removing this attachment tool 200.

  The rigid housing 103 may be a straight rod, but in this embodiment, as shown in FIGS. 2 to 4, the rigid housing 103 is bent and attached to the main body 113 of the attached rigid housing 103. A bent escape portion is formed at an appropriate position so as not to obstruct the passenger, and there is no risk that the passenger will be caught by the rigid housing 103 by the front and rear movements of the rigid housing 103. It can be used safely.

FIG. 1 is an overall side view schematically showing an infant vehicle with an auxiliary operation lever using the connecting structure for an infant vehicle with an auxiliary operation rod according to the present invention. FIG. 2 is an exploded perspective view showing, in an enlarged manner, a main part on the handle side of the connection structure in the infant vehicle with an auxiliary operation rod surrounded by a dotted line B in FIG. 1. FIG. 3 is an exploded perspective view showing, in an enlarged manner, a main part on the auxiliary operation rod side of the connection structure in the infant vehicle with the auxiliary operation rod surrounded by a dotted line C in FIG. 1. 4 is an overall view of the rigid housing shown in FIGS. 1 to 3, FIG. 4 (a) is a plan view of the rigid housing, and FIG. 4 (b) is a side view of the rigid housing. Are shown respectively.

Explanation of symbols

A Infant vehicle 1 Body frame 11 Handle boss 2 Handle 21 Support shaft 8 Holding portion 9 Auxiliary operation rod 100 Connecting tool 101 Support shaft projection piece 102 Operation rod projection piece 103 Hard housing 111 Shaft hole portion 112 Shaft hole portion 113 Main body portion 123 Front mounting part 133 Rear mounting part 200 Mounting tool 211 Bolt shaft 201 Rotating shaft 202 Nut

Claims (3)

A handle fulcrum is fitted into a handle boss provided in front of the main body frame of the infant vehicle so as to rotatably support the handle, and a holding portion provided at the rear of the main body frame is inclined upward and obliquely. The lower part of the auxiliary operation rod extending rearward is inserted, the auxiliary operation rod is rotatably supported, and the auxiliary operation rod and the shaft of the handle are connected by a connector. In the connecting structure for an infant vehicle with an auxiliary operation rod in which the auxiliary operation rod and the handle are synchronized with each other, the connector is extended to the side of the support shaft of the handle, and the shaft hole is formed at a proper position. The support shaft projecting piece that opened the part, the operation operation projecting piece that extends to the side of the lower end of the auxiliary operation rod and opened the shaft hole at the appropriate position, and the front and rear ends of the rod-shaped main body, A front mounting portion and a rear mounting portion are provided on the support shaft protruding piece and the operation rod protruding piece, respectively. And rigid rod, the front attachment portion and said support shaft projecting piece, and, anda fitting for mounting said rear attachment portion and said operation杆突piece each rotatably,
The fixture includes at least a rotating shaft having a bolt shaft penetrating the shaft hole portion and the front mounting portion, and a nut screwed to the bolt shaft. The mounting portion, and the operating rod projecting piece and the rear mounting portion are each mounted rotatably.
Either the rotating shaft or the nut is fixed to the support shaft protruding piece and / or the operating rod protruding piece in advance . The connecting structure for an infant vehicle with an auxiliary operation rod according to claim 1, wherein a bent escape portion is formed at an appropriate position of the rigid housing so as not to obstruct the passenger. An infant vehicle with an auxiliary operation lever according to claim 1, comprising the connecting structure for an infant operation vehicle with an auxiliary operation rod.

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