JP3018647U - Toddler tricycle with pusher - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a tricycle with pushers equipped with footrests for infants. [Structure] Infant footrests (R) are detachably suspended from a total of three locations including a vehicle body frame (F) and a rear fork (12) forming a rear end portion, and one of the footrests (R) used for suspension is suspended. The steering handlebar stem (21) of the front wheel (24) was fixed to be unsteerable by pressing and locking the part to the mudguard cover (26) of the front wheel (24).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an infant tricycle with a pusher, and is equipped with a footrest for an infant especially when the pusher is used.

[0002]

[Prior art]

 In a tricycle for infants, the front wheel is the steering drive wheel, and it is customary to step on a pair of left and right pedals attached to both ends of the crankshaft, but the guardian of the infant pushes it from behind with a pusher. When using it, it is rather dangerous to put your foot on the pedal.

Therefore, in a conventional tricycle with a pusher, an auxiliary sheet framed from a metal pipe is separately fixed on the saddle in a stacked state so that the infant's foot does not reach the saddle.

[0004]

[Problems to be solved by the device]

 However, according to the above configuration, it takes time and effort to attach and detach the auxiliary seat and to put a baby on it, which hinders the graceful exterior design of the tricycle, and as a result of the higher center of gravity, there is a risk of rollover.

[0005]

[Means for Solving the Problems]

 The present invention intends to improve such a problem, and because of the structure for that purpose, the rear end of the vehicle body frame is branched as a rear fork, the rear axle is laid horizontally on the rear fork, and a pusher is also raised from the rear fork. On the other hand, in a tricycle for infants with a pusher, in which the steering handlebar stem of the front wheel is pivotally connected to the front end of the vehicle body frame, and the mudguard cover of the front wheel is fixed to the midway position of the steering handlebar stem. ,

Firstly, a footrest is detachably hung from a total of three positions of the body frame and the rear fork, and a part of the hung footrest is locked in a holding state of the mudguard cover. The steering handle stem is fixed so that it cannot be steered.

Secondly, the footrest is detachably suspended from a total of four positions of the rear fork and the steering handle stem of the vehicle body frame, and a part of the suspended footrest is put on the mudguard cover. It is characterized in that the steering handle stem is fixed and held unsteerable by locking.

[0008]

[Action]

 According to the above structure of the present invention, the footrest is adapted to be used by being suspended from three portions of the vehicle body frame including the rear forks, or four portions of the vehicle body frame and the steering handle stem, so that the infant can use the saddle. You can rest your foot on the footrest while sitting on your back, and the position of the center of gravity does not rise, so it is extremely stable.

In addition, when the footrest is being used for suspension, the mudguard cover of the front wheel is pressed and locked by a part of the footrest, and the steering handle stem is fixed so that it cannot be steered. It can be used safely by hand.

Moreover, the footrest can be detached from the vehicle body frame or the steering handle stem in a one-touch operation type, and can be used as an ordinary tricycle, which is extremely convenient.

[0011]

【Example】

 A specific configuration of the present invention will be described in detail below with reference to the drawings. In FIGS. 1 to 12 showing a first embodiment of the tricycle, (F) is a vehicle body of a metal pipe material extending along the front-rear direction. It is a frame, and a saddle (11) is mounted on the middle portion thereof by a known mounting means.

The lower rear end of the body frame (F) is bifurcated as a rear fork (12), and a pair of left and right rear axles are provided at both ends of the rear axle (13) passing through the rear end. A wheel (14) is rotatably supported, and a step (15) is fixedly inserted in the middle of the rear axle (13). (16) is an accessory case made of synthetic resin which is detachably attached to the step (15) from above, and (17) is a top cover for opening and closing the same.

Further, (18) is a backrest integrally erected from the rear forks (12) of the body frame (F), and (19) is vertically adjustable to a support frame (20) of the backrest (18). It is an attached pusher that stands up taller than the backrest (18). Moreover, the push (19) can be removed from the support frame (20) of the backrest (18).

On the other hand, (21) is a pair of left and right steering handle stems made of a metal pipe material, and a predetermined number of connecting plates (22) interposed at a midway position thereof enable mutual operation. It is assembled. (23) is a front axle that penetrates and traverses the lower ends of both steering handle stems (21), and is made up of a crankshaft of a metal rod, and a front wheel (24) interposed in the middle of the front axle (24) also has both ends. It goes without saying that it is rotationally driven by stepping on the pedal (25) pivotally supported by the section. Reference numeral (26) denotes a synthetic resin mudguard cover for the front wheel (24), which is fixed and laterally mounted between the steering wheel stems (21).

The middle height position of both steering handle stems (21) is rotatably pivotally connected to the upper front end of the body frame (F) through one vertical axis (27). There is. (28) is a decorative cover of the pivotal support portion, which is also made of synthetic resin. Reference numeral (29) is a pair of left and right handlebars that extend outward from the upper ends of both steering handlebar stems (21) and are bent. The steering handle stem (21) may be one similar to that of the bicycle, and only the lower end of the steering handle stem (21) may be branched into a bifurcated shape that straddles the front wheel (24).

(R) is a footrest that is used by being suspended from the vehicle body frame (F) including the rear forks (12), and stands up from the footrest bottom surface (30) as shown in FIGS. A synthetic resin is integrally molded as a U-shaped section having a front surface (31), a rear surface (32), and a pair of left and right side surfaces (33).

(34) A group of non-slip protrusions provided on the bottom surface (30) of the footrest (R), (35) a group of reinforcing ribs that also hang down from the bottom surface (30) in a short length, (36) Is a pair of left and right rollover prevention pieces that are longer than the reinforcing rib group (35) and hang down from both side positions of the bottom surface (30), and they move quickly when the vehicle body or its attached footrest (R) tilts. It acts on the ground to prevent the risk of rollover.

Further, (37) is a pair of left and right hanging hooks that stand upright from the rear surface (32) of the footrest (R), and is fitted into and dismounted from the rear forks (12) of the vehicle body frame (F) from above. Can be fitted freely. Moreover, the bent tip of each hook (37) is provided with a notch (38) for exhibiting elasticity and a wedge claw (39) for preventing falling off.

That is, both hooks (37) for hanging the footrest (R) to the rear forks (12) of the vehicle body frame (F) are forced into a one-touch operation type by the elasticity of the bending tip without using tools. It is possible to fit it once, and once it is fitted, there is no rattling and the wedge claws (39) prevent it from falling off easily.

On the other hand, the front surface (31) of the footrest (R) stands up slightly taller than the hanging hook (37), and moreover, the front wheel (24) and its mudguard cover (with a certain width in the center thereof). As a center cover (40) that covers the rear side (26) from the rear, it is curved and formed in an inverted U shape in a front view and an arc shape in a side view.

Reference numeral (41) is a locking piece which is integrally projected inward from the center cover (40) to the front wheel mudguard cover (26), which is locked with the front wheel mudguard cover (26) and Keeping the front wheel (24) in a steerable state by holding and fixing. When suspending and using the footrest (R), the guardian operates the pusher (19) from behind.

Reference numeral (42) is a mounting mast that is erected upward from the arc surface of the center cover (40) on the front-rear center line, and has an inverted U-shape in a front view. (43) is a pair of left and right horizontal bearing holes formed in the mounting mast (42), and (44) is a pair of left and right recesses that are also recessed facing the rising of the mounting mast (42). , The mounting masts (42) are sandwiched in parallel, so that one screw shaft, which will be described later, can be inserted into and removed from the bearing hole (43).

Further, reference numeral (45) is a clamp for suspending the mounting mast (42) of the footrest (R) to the vehicle body frame (F), which is also seen from the front when straddling the vehicle body frame (F) from synthetic resin. It is shaped like an inverted U-shape. Moreover, the inverted U-shaped opening width is dimensioned so as to sandwich the mounting mast (42) of the footrest (R) from the left and right directions. Reference numeral (46) is a pair of left and right bearing holes formed in the clamp (45) and corresponding to the bearing holes (43) on the mounting mast (42) side.

When suspending and using the footrest (R) configured as described above from the vehicle body frame (F), first, both hanging hooks (37) of the footrest (R) are attached to the vehicle body frame (F). ) Hook it by fitting it onto the rear forks (12) from above.

Then, the clamp (45) is straddled over the vehicle body frame (F), and the mounting mast (42) of the footrest (R) is fitted into the clamp (45) from below, and the bearing hole (at the mounting mast (42) side ( One screw shaft (47) is passed through the shaft 43 (43) and the bearing hole (46) on the side of the clamp (45), and the nut (48) is fastened to the screw shaft (47).

Then, as is apparent from FIGS. 1 to 5, the footrest (R) has a pair of left and right hanging hooks (37) and a mounting mast (42) at a total of three places, namely the body frame (F). ) And its rear forks (12), which results in a stable suspension from the body frame (F) with the footrest bottom (30) installed in a substantially horizontal position.

Further, the center cover (40) of the footrest (R) covers the mudguard cover (26) of the front wheel (24) from the rear side, and the center cover (40) projects inward from the center cover (40). By the locking piece (41), the front wheel mudguard cover (26) is pressed and locked, and the steering handle stem (21) is kept in a non-steerable fixed state.

On the contrary, by removing the screw shaft (47) from the bearing holes (43) and (46), the mounting mast (42) of the footrest (R) can be removed from the clamp (45). The hanging hook (37) can also be pulled out from the rear fork (12) of the vehicle body frame (F), so it can be used properly according to the infant's age. It goes without saying that if the footrest (R) is removed from the vehicle body frame (F), the front wheels (24) can be steered and stepped freely.

In the first embodiment shown in FIGS. 1 to 12, the pair of left and right rollover prevention pieces (36) are continuously and integrally suspended from the footrest bottom surface (30) of the footrest (R). As suggested in the second embodiment, a pair of left and right rollover preventing wheels (46) instead of the left and right rollover preventing wheels (46) may be rotatably pivotally supported to both side positions of the footrest bottom surface (30).

Further, in the case of the first embodiment, the mounting mast (42) is erected upward from the center cover (40) of the front surface (31) of the footrest (R), and the mounting mast (42) is raised. Although it is suspended from the body frame (F) by the clamp (45), the front surface (31) of the footrest (R) is suspended from the steering handle stem (21) as shown in the third embodiment of FIGS. It may be configured to lower it.

That is, a pair of left and right mounting hooks (50) are projected forward and upward from the front surface (31) of the footrest (R), while a hanger frame (52) having a receiving hole (51) for the mounting hooks (50) is provided. ) Is suspended from the mid-height position of the steering handle stem (21).

Then, the mounting hooks (50) of the footrests (R) are detachably engaged with the pair of left and right receiving holes (51) opened at the lower end of the hanger frame (52) from the upper rear side. The footrest (R) is suspended and used in a substantially horizontal installation state in combination with the pair of left and right hanging hooks (37) standing upright from the rear surface (32). The footrest (R) is hung and used as a supporting state by a total of four positions of the rear fork (12) of the body frame (F) and the steering handle stem (21).

Reference numeral (53) is a pair of left and right bolts for attaching the upper end of the hanger frame (52) to the mid-height position of the steering handle stems (21), and by removing the bolts, the hanger frame (52) is removed. It goes without saying that (52) can be removed from the steering handle stem (21).

Since the other configurations in the second and third embodiments are substantially the same as those in the first embodiment, only the corresponding reference numerals to those in FIGS. 1 to 12 are described in FIGS. 13 to 18. In any case, the footrest (R) can be made of not only synthetic resin but also metal in the form of a mesh on the bottom of the footrest (30). The shape is not limited to that of the illustrated embodiment.

[0035]

[Effect of device]

 As described above, according to the present invention, the rear end of the vehicle body frame (F) is branched as the rear fork (12), the rear axle (13) is laterally mounted on the rear fork (12), and the rear fork (12) is also provided. While the pusher (19) is erected from above, the steering handle stem (21) of the front wheel (24) is pivotally connected to the front end of the body frame (F), and the steering handle stem (21) is In a tricycle for infants with a pusher that secures the mudguard cover (26) of the front wheel (24) to the mid-height position,

The footrest (R) is removably hung from a total of three positions including the body frame (F) and the rear fork (12), and a part of the hung footrest (R) is covered with the mudguard cover (R). By locking the steering handle stem (21) in a non-steered state by locking it in the pressed state of (26), the problems of the prior art mentioned at the beginning can be improved, It has the effect that it can be provided as a three-wheeled vehicle with excellent stability and exterior design.

That is, according to the above configuration of the present invention, the footrest (R) of the infant is hung from the vehicle body frame (F) and the rear fork (12) at the rear end thereof in total of three places. Therefore, even if the footrest (R) is used, the position of the center of gravity does not become high, and the infant can stably put his / her foot on the saddle (11) while sitting on the saddle (11), and the rollover accident is surely prevented. To get.

Moreover, when the footrest (R) is in the suspended use state, a part of the locking piece (41) presses the mudguard cover (26) of the front wheel (24) to operate the front wheel (24). Since the directional steering wheel stem (21) is fixed so that it cannot be steered, the guardian can push the rear steering wheel manually from behind and safely operate the tricycle.

The footrest (R) can be removed from the body frame (F) and its rear forks (12) and can be used as a normal tricycle, so that it can be used for a long period of time depending on the infant's age. Remarkably convenient.

The above effects can be achieved in exactly the same manner even if the configuration of claim 3 is adopted. Even if the front part of the footrest (R) is hung from the steering wheel stem (21) of the front wheel (24), the footrest (R) is installed below the body frame (F). Because there is no.

If the construction of claims 2 and 4 is adopted, the weight of the footrest (R) is reduced, and the mounting mast (42) and the mounting hook (50) at the front portion thereof and the hanging hook (37) at the rear portion thereof. 3) and 4) and (3) and (4), it is possible to maintain a more stable suspension support state and also to keep the infant's foot on the footrest (R) safe.

According to the fifth or sixth aspect of the invention, when the vehicle body and the footrest (R) attached to the vehicle body are inclined, the rollover prevention piece (36) and the rollover prevention wheel (49) come in contact with each other quickly. Since it works, it has the effect of preventing the rollover accident.

Further, if the configuration of claim 7 is adopted, the hanging hook (37) of the footrest (R) does not require tools, and the bent front end portion of the rear fork (12) of the vehicle body frame (F) is used. ) Can be elastically and quickly fitted, and in the fitted state, the wedge claw (39) has an effect of not easily coming off.

[Brief description of drawings]

FIG. 1 is an overall side view showing a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is an enlarged sectional view taken along line 3-3 of FIG.

FIG. 4 is a partially enlarged cross-sectional view taken along the line 4-4 of FIG.

5 is a partial enlarged cross-sectional view taken along line 5-5 of FIG.

FIG. 6 is a plan view showing an extracted footrest.

FIG. 7 is a side view of FIG.

8 is a sectional view taken along line 8-8 of FIG.

9 is a sectional view taken along line 9-9 of FIG.

FIG. 10 is a plan view showing a clamp extracted.

11 is a sectional view taken along line 11-11 of FIG.

12 is a sectional view taken along line 12-12 of FIG.

13 is an overall side view showing a second embodiment of the present invention corresponding to FIG.

14 is a sectional front view showing a third embodiment of the present invention corresponding to FIG.

15 is a partial cross-sectional view taken along line 15-15 of FIG.

FIG. 16 is a front view showing an extracted hanger frame.

17 is a cross-sectional view taken along line 17-17 of FIG.

18 is a sectional view taken along line 18-18 of FIG.

[Explanation of symbols] (12) · Rear fork (13) · Rear axle (19) · Pusher (21) · Steering handle stem (24) · Front wheel (26) · Mudguard cover (30) · Foot rest bottom (31) ) · Front surface (32) · Rear surface (33) · Side surface (36) · Rollover prevention piece (37) · Hanging hook (38) · Notch (39) · Wedge claw (40) · Center cover (41) · Engagement Stopper (42), mounting mast (45), clamp (49), rollover prevention wheel (50), mounting hook (52), hanger frame (F), vehicle body frame (R), footrest

Claims (7)

[Scope of utility model registration request] 1. A rear end portion of a body frame (F) is branched as a rear fork (12), and the rear fork (1) is branched.
The rear axle (13) is laid horizontally on 2) and the pusher (19) is also erected from the rear fork (12), while the steering wheel stem of the front wheel (24) is attached to the front end of the body frame (F). (21) is pivotally connected to the steering wheel stem (21) of the front wheel (2).
4) In a tricycle for infants with a pusher to which the mudguard cover (26) is fixed, the body frame (F) and its rear forks (12) are provided.
The footrest (R) is removably hung from a total of three places, and the steering handle is held by locking a part of the hung footrest (R) in the pressed state of the mudguard cover (26). A tricycle for infants with a pusher, characterized in that the stem (21) is fixed and kept unsteerable. 2. The footrest (R) is made of synthetic resin and has a foot-mounting bottom surface (30) and a front surface (31) standing upright from the periphery thereof.
A left-right pair that is shaped into a U-shaped cross section having a rear surface (32) and both side surfaces (33), and is removably fitted from the rear surface (32) to the rear forks (12) of the vehicle body frame (F). The center hook (40) which hangs the hanging hook (37) upright and covers the front wheel (24) and its mudguard cover (26) from the rear at the center of the front surface (31).
Is erected higher than the hanging hooks (37), and the center cover (40) extends from the center cover (40).
6) A locking piece (41) for pressing down 6) is projected inward, and a mounting mast (42) is also erected on the front and rear centerlines of the center cover (40), and the mounting mast (42) is attached to the body frame. The tricycle for infants with a pusher according to claim 1, wherein the clamp (45) is attachable to and detachable from (F) so that the footrest bottom (30) is suspended substantially horizontally. 3. The rear end of the body frame (F) is branched as a rear fork (12), and the rear fork (1) is branched.
The rear axle (13) is laid horizontally on 2) and the pusher (19) is also erected from the rear fork (12), while the steering wheel stem of the front wheel (24) is attached to the front end of the body frame (F). (21) is pivotally connected to the steering wheel stem (21) of the front wheel (2).
4) In a tricycle for infants with a pusher to which the mudguard cover (26) is fixed, the footrest (R) is attached and detached from a total of four positions of the rear fork (12) and the steering handle stem (21) of the body frame (F). The steering handle stem (21) was fixed uncontrollable by freely suspending and by suspending a part of the suspended footrest (R) in the pressed state of the mudguard cover (26). This is a tricycle for infants with a push handle. 4. A footrest (30) made of synthetic resin for the footrest (R), and a front surface (31) standing upright from the periphery thereof.
A left-right pair that is shaped into a U-shaped cross section having a rear surface (32) and both side surfaces (33), and is removably fitted from the rear surface (32) to the rear forks (12) of the vehicle body frame (F). The center hook (40) which hangs the hanging hook (37) upright and covers the front wheel (24) and its mudguard cover (26) from the rear at the center of the front surface (31).
Is erected higher than the hanging hooks (37), and the center cover (40) extends from the center cover (40).
6) The locking piece (41) for holding down 6) is projected inward, and a pair of left and right mounting hooks (50) are projected forward from the front surface (31), and both mounting hooks (50) are steered. The pusher according to claim 3, wherein the stem (21) is suspended by a hanger frame (52) which is detachable to a mid-height position so that the bottom surface (30) of the footrest is substantially horizontal. Tricycle for children. 5. A footrest (30) made of synthetic resin for the footrest (R), and a front surface (31) standing upright from its periphery,
A U-shaped cross section having a rear surface (32) and both side surfaces (33) is formed, and a pair of left and right rollover preventing pieces (36) are continuously hung from both side positions of the footrest bottom surface (30). The tricycle for infants with a pusher according to claim 1 or 3, characterized in that it is made. 6. The footrest (R) is made of synthetic resin, and a footrest bottom surface (30) and a front surface (31) standing upright from the periphery thereof,
A U-shaped cross section having a rear surface (32) and both side surfaces (33) is formed, and a pair of left and right rollover prevention wheels (49) are freely idled at both side positions of the footrest bottom surface (30). The tricycle for infants with a pusher according to claim 1 or 3, which is pivotally supported. 7. The footrest (R) is made of synthetic resin and has a bottom surface (30) on which the foot is placed, and a front surface (31) standing upright from the periphery thereof.
A left-right pair that is shaped into a U-shaped cross section having a rear surface (32) and both side surfaces (33), and is removably fitted from the rear surface (32) to the rear forks (12) of the vehicle body frame (F). The hanging hooks (37) of the above are erected upright, and notches (38) for imparting elasticity and wedge claws (39) for preventing falling are provided at the bent tip end of each hanging hook (37). The tricycle for infants with a pusher according to claim 1 or 3.