JPS632068Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved assembly structure for a synthetic resin body in a children's play vehicle.

Various types of play vehicles for children with bodies made of synthetic resin are known, but since the conventional body structure is only an upright U-shape in cross section with an open bottom, the strength of the body is limited unless the walls are made considerably thicker. inferior to In the case of this type of recreational vehicle, the left and right sides of the body surrounding the seating opening are usually used as handrails and entrances and exits, but when a strong downward force is applied from above to these areas, the entire body It is susceptible to irregular deformation, especially along the lateral direction, and eventually cracks or cracks appear from its open lower edge. If there is even a slight uneven scratch on the lower edge, it may pose a danger to the infant's foot area.

Such problems can be solved by converting the conventional structure in which the upper body and lower body made of metal plates are joined and fixed together in a clasped shape using separate fixing devices such as bolts and nuts to the above-mentioned synthetic resin body. Although it may seem possible, as the number of fixing devices increases, they are unsightly exposed around the body, and they also look incongruous with the synthetic resin surface, resulting in an aesthetically unsatisfactory appearance.On top of that, the work of assembling the body becomes extremely complicated. However, this would also lead to higher costs, making it extremely difficult to adopt.

The purpose of the present invention is to solve such problems, and its specific configuration will be explained based on the illustrated embodiment.
In the fully assembled external view shown in the figure, A is an upper body that is generally U-shaped in cross section with an opening at the bottom, and B is a lower body that is generally U-shaped in cross section with an upper opening. Each piece is individually molded in advance from polypropylene or other synthetic resin so that they can be joined face-to-face like a middle confectionery. As is clear from Figure 3, the upper body A is
A seating opening 1 is provided in the center thereof, and a seat support bottom wall 2 is recessed in a position immediately after the opening 1 for seating. The seat 3 is placed on this bottom wall 2,
A slide operation mechanism 4 set on the lower surface of the bottom wall 2 allows it to slide in the front-rear direction.

That is, numeral 5 is a slide plate assembled with bolts and nuts 6 so as to slide together with the seat 3 on the lower surface of the bottom wall 2, and has a lever receiving cylinder 7 fixed thereto. Reference numeral 8 designates an operating lever that is rotatably inserted into and extended into the receiving tube 7 along the front-rear direction perpendicular to the slide plate 5. A knob 9 is provided at the bent front end of the operating lever 8, and a knob 9 is provided at the bent front end of the operating lever. A plurality of adjustment notches 10 are provided on a portion of the surface at regular intervals. Reference numeral 11 denotes a lock pawl that is removably engaged with the notch 10, and is rotatably supported on a lever holding leg 12 that is seated and fixed on the lower surface of the bottom wall 2. And lock claw 11
is elastically biased so that it is always locked in the notch 10 of the lever 8, and the lever 8 is also biased in the direction of rotation in which its notch 10 always receives the lock pawl 11, so that both of them can be released from the lock. lever 8 in the direction
By turning the seat 3 and pushing or pulling it in the front and rear directions, the seat 3 can be slid according to the age of the infant. 13 is lever 8
This is a stopper pin that restricts the rotation angle range to about 90 degrees, and also serves to prevent the lever 8 and its receiving tube 7 from coming off. Reference numeral 14 designates a plurality of long slide guide holes, in particular two holes facing the center of the bottom wall 2, as well as a pair at both left and right corners of the seating opening 1, so that the sliding action of the seat 3 is smoothed. It is possible to obtain stable support at all times. 15 is Bolt and Nut.

On the other hand, the lower body B has, in its central part, a seating opening 16 which substantially corresponds to the seating opening 1 of the upper body A, as is clear from FIGS. 1
Reference numeral 7 denotes a pair of left and right front wheel fenders, and a groove 19 for receiving the front axle 18 is provided across the fenders. Reference numeral 20 designates a pair of rear wheel fenders, and the rear center of the lower body B that occupies between them is connected as a so-called raised bottom type joint bottom wall 21, and here the seat slide operation mechanism 4 is installed.
A mounting opening 22 is opened. This joint bottom wall 21 is joined to the seat support bottom wall 2 and assembled and fixed with a required number of bolts and nuts 23.
A front wheel steering mechanism 24 made of metal and a pedal crank movement mechanism 25 for driving the rear wheels are mounted and supported on this lower body B. 26 is a hand lever.

The upper body A and the lower body B are configured such that the lower opening edge of the former and the upper opening edge of the latter, which face each other, are removably connected as follows. That is, in FIGS. 5 to 7 extracted from this, 27 is a plurality of insertion protrusions scattered from the lower edge of the opening of the upper body A, and 28 is an insertion protrusion that hangs down in an integral projecting shape. 28 is an opening of the lower body B. This is an annular collar piece with a vertical U-shaped cross section that forms the upper edge, and functions as a bumper or fender, as well as changing the appearance of the body. Reference numeral 29 denotes a plurality of clamping pieces that stand in parallel to the inner position of the collar piece 28 and are scattered, so that the lower edge of the opening of the upper body A can be held between the clamping pieces facing the collar piece 28. A receiving and holding groove S is defined. 3
0 is a slit opened in the flat groove bottom surface of this concave groove S, and in order to correspond to the protrusion 27 of the upper body A, a plurality of slits are also disposed in a scattered manner. Upper body A and lower body B are assembled by being inserted from above. In the assembled state, the lower edge of the opening of the upper body A is held together by the fork-shaped outer collar piece 28 and the inner holding piece 29, and the inserted As a result, the protrusion 27 is covered by the outer flange piece 28 so that it cannot be visually recognized from the outside.

In this case, as suggested from Figures 3 and 4,
In the illustrated embodiment, the lower edge of the opening of the upper body A and the upper edge of the opening of the lower body B are assembled by the above-mentioned insertion structure over the entire annular shape, and only at the front and rear sides of the body are the required The connection is strengthened by several bolts and nuts 31 that are passed through in the longitudinal direction. Then, the insertion protrusion 27 of the upper body A, the clamping piece 29 and the slit 30 of the lower body B
By arranging them in a plurality of scattered pieces, it is hoped that the assembly work will be simplified and smoother.

In FIG. 5, the slit 30 is correctly arranged to form an opening in the groove S defined between the flange piece 28 and the clamping piece 29.
0 are scattered as a plurality of pieces corresponding to the insertion protrusions 27, for example, the slits 3 are arranged so as to face the intermediate position between adjacent clamping pieces 29 as shown in FIG.
Of course, you can set it to 0. Furthermore, as illustrated in FIG. 9, on the contrary, a clamping piece 29 as described above is made to hang integrally and projectingly from the lower edge of the opening of the upper body A, so that the clamping piece 29 as described above hangs integrally with the annular flange piece 28 which forms a simple plate wall shape. Between,
While dividing the receiving and holding groove S of the lower body B, an insertion protrusion 27 corresponding to the slit 30 formed in the upper body A is integrally erected from the upper edge of the opening of the lower body B, It is also possible to insert the protrusion 27 into the slit 30 in the same manner as described above, and to hold the lower body B by the upper body A.
Incidentally, the protrusion height and length of the protrusion 27 and the clamping piece 29, the opening width and length of the slit 30, etc. can be determined appropriately.

The body assembly structure of the present invention is not only useful for solving the problems mentioned at the beginning, but also has special meaning when used in the following cases. In other words, as suggested from FIG. 2, the channel-shaped metal plate pedal mounting leg 32, which is fixedly suspended horizontally on the lower body B at the front position of the body, is also joined and fixed to the upper body A. Use this as a rigid beam material,
Distortion of both the upper and lower bodies A and B in the longitudinal and lateral directions in the assembled state can be prevented. but,
At the rear position of the body, it is necessary to slide the seat 3 and crank the rear axle 33 by the slide operation mechanism 4, so it is necessary to use a rigid structure such as the pedal mounting leg 32 to prevent distortion. It is not possible to fixedly suspend the bar material, for example, in a gap between the seat support bottom wall 2 of the upper body A and the joint bottom wall 21 of the lower body B, where they face each other in a manner that cannot be visually recognized from the outside. In this regard, according to the assembly structure of the present invention, while allowing the seat 3 to slide, it is possible to prevent distortion and deformation of the assembled body at the rear position.

As described above, in the body assembly structure of a children's play vehicle according to the present invention, when the lower edge of the opening of the upper body A made of synthetic resin and the upper edge of the opening of the lower body B also made of synthetic resin are connected, , A plurality of scattered insertion protrusions 27 are integrally hung from the opening edge of either the upper body A or the lower body B, and the opening edge of the above one is attached to the remaining opening edge of the other one. One continuous annular collar piece 28 that should receive and clamp the
and a plurality of interspersed holding pieces 29, and a plurality of interspersed slits 30 into which the insertion protrusions 27 are to be inserted. While the edge is received into the groove S of the other side and maintained in a sandwiched state, the insertion protrusion 27 of one side is inserted.
is inserted into the other slit 30, and all of the inserted protrusions 27 are covered with the annular flange pieces 28 that function as bumpers or fenders of the bodies A and B so that they cannot be seen from the outside. It is possible to assemble both bodies A and B extremely easily and quickly without requiring a large number of separate fixing tools such as bolts and nuts.
Despite this, it is possible to obtain an assembled state that is strong and does not undergo unauthorized deformation and has a good appearance.

That is, the insertion protrusions 27 and the slits 30 for receiving them are arranged in a plurality of scattered pieces, and the holding pieces 29, which together with the annular collar piece 28 define the groove S, are also arranged in a plurality. Since the opening edges of the upper body A and the lower body B are arranged in a scattered manner, it is possible to easily and correctly match the opening edges of the upper body A and the lower body B over the whole, and therefore, it is extremely efficient and simple. This allows for assembly work.

In this respect, for example, the insertion protrusion 27 hanging down from the upper body A and the receiving groove S defined at the upper edge of the opening of the lower body B are connected to each other in a continuous annular shape extending over the entirety of both bodies A and B. When determining the shape, it becomes difficult to properly match the insertion protrusion 27 and the groove S over the entire bodies A and B, making it impossible to assemble smoothly and efficiently. This becomes more noticeable as the groove S becomes deeper. Therefore, the opening width and depth of the groove S are set to 2
If we define a wide and shallow width that is easy to accept for 7,
Although this results in a decrease in assembly strength, the configuration of the present invention eliminates this problem.

In addition, although the present invention has excellent assembly workability, once the bodies A and B are combined, one opening edge of both bodies A and B has a concave groove S defined in the other opening edge. In addition to being received and held in a clamped state, the insertion protrusion 27 projecting from one opening edge is inserted into a correspondingly formed slit 30 in the other opening edge. This has the effect of providing a stable and strong assembled state in which both bodies A and B will not be improperly deformed. Even if the opening width and depth of the groove S are set wide and shallow, there is no risk of the assembly strength being reduced.

Also, the protrusion 27 inserted into the slit 30
are all coated with an annular collar piece 28 that functions as a bumper or fender for bodies A and B, so that they cannot be seen from the outside, so this does not impede the elegance of the external design of both bodies A and B in the slightest. There is no danger, and furthermore, the necessary components can be realized extremely simply as an integrally molded product of synthetic resin, so it can be said to be suitable for practical use with high mass productivity.

[Brief explanation of the drawing]

Fig. 1 is an overall external side view showing the assembled state of the present invention, Fig. 2 is a bottom view, Fig. 3 is a bottom view of the upper body, Fig. 4 is a plan view of the lower body, and Fig. 5 is an assembly diagram. 6 is an enlarged sectional view of the assembled state, and FIG. 7 is an enlarged sectional view showing the disassembled state of the parts.
- An X-ray sectional view, FIG. 8 is an exploded enlarged perspective view of a modification corresponding to FIG. 5, and FIG. 9 is an assembled enlarged sectional view of still another modification corresponding to FIG. A... Upper body, B... Lower body, 27... Insertion protrusion, 28... Flange piece, 29... Clamping piece, 30...
...Slit, S...concave groove.

Claims (1)

[Claims for Utility Model Registration] When joining the lower edge of the opening of the upper body A made of synthetic resin and the upper edge of the opening of the lower body B also made of synthetic resin, which of the upper body A and the lower body B is connected? A plurality of interspersed insertion protrusions 27 are hung integrally from the edge of one of the openings, and a continuous piece of projection 27 is formed to receive and hold the edge of the opening on the remaining edge of the other opening. Annular collar piece 28
and a plurality of interspersed holding pieces 29, and a plurality of interspersed slits 30 into which the insertion protrusions 27 are to be inserted. While keeping the edge part received and held in the other groove S, insert the insertion protrusion 27 of one into the slit 30 of the other, and insert all of the inserted protrusion 27 into the bodies A and B. A body assembly structure for a children's play vehicle, characterized in that the annular flange piece 28 functioning as a bumper or fender is used to cover the body and make it invisible from the outside.