Toy truck

Information

  • Patent Grant
  • 6672936
  • Patent Number
    6,672,936
  • Date Filed
    Tuesday, November 19, 2002
    22 years ago
  • Date Issued
    Tuesday, January 6, 2004
    20 years ago
Abstract
A toy vehicle (10) comprising a part (12) resembling a truck tractor, a part (14) resembling a truck trailer and a pivotal connection (16) therebetween. The pivotal connection (16) is positioned between a platform portion (20) of the tractor part (12) and a front portion (22) of the trailer part (14) that extend over the tractor's platform portion (20). The pivotal connection (16) includes a recess-and-projection arrangement allowing pivotal movement between the tractor part (12) and the trailer part (14), and a groove-projection arrangement limiting the maximum turning radius between the tractor part (12) and the trailer part (14).
Description




FIELD OF THE INVENTION




This invention relates generally as indicated to a toy truck and, more particularly, to a toy truck having a part resembling a truck tractor, a part resembling a truck trailer, and a pivotal connection therebetween.




BACKGROUND OF THE INVENTION




A toy truck is a popular item with a child as he/she is learning to move and manipulate rolling items across different surfaces and terrains. Typically, a toy truck has a part resembling a truck tractor, a part resembling a truck trailer and a pivotal connection therebetween. The tractor part usually has a front portion shaped like a chassis and cab body and a platform portion extending rearwardly therefrom. The trailer part usually has a front portion that extends over the tractor's platform portion and a rear portion extending rearwardly therefrom. The pivotal connection is commonly positioned between the tractor's platform portion and the trailer's front portion. A child can control the truck's movement by pulling or pushing the tractor part, with the pivotal connection allowing the trailer part to pivot relative to the tractor part so that the toy truck can turn corners and accomplish other maneuvers.




SUMMARY OF THE INVENTION




The present invention provides a toy truck that provides a secure but child-compatible connection between the tractor part and the trailer part, limits the maximum turn of the tractor part relative to the trailer part, and/or guards connection components against unnecessary wear-and-tear when the trailer part is detached from the tractor part.




More particularly, the present invention provides a toy truck wherein the pivotal connection includes a recess on either the tractor part or the trailer part and a pivot-projection on the other part. The pivot projection comprises a stem and a capture head having a wide portion and a distal portion tapering inwardly from the wide portion. A passageway leads to the recess and the passageway includes an inlet wider than the wide portion of the pivot projection, a resilient outlet slightly less wide (in a relaxed state) than the wide portion of the pivot projection, and a tapering wall therebetween. These features facilitate the initial mating between the capture head and the passageway, ease the outward urging of the resilient outlet during connection steps, and prevent inadvertent detachment of the parts when, for example, the child lifts the toy truck by only its trailer part.




The present invention additionally or alternatively provides a toy truck wherein the pivotal connection includes a projection-and-groove arrangement which limits the range of relative pivotal movement of the tractor and trailer parts and thus dictates a maximum turn position for the toy truck. This arrangement provides a finger gap (e.g., 0.50 inches or more) between the most-adjacent side faces of the tractor part and the trailer part, respectively, when the toy truck is at a maximum turn position. In this manner, a child has the option of grasping the tractor part by placing his/her fingers in this finger gap.




The present invention further provides a toy truck wherein projection components of the pivotal connection (e.g., the pivot projection and/or the turn-limiting projection) are contained within a projection-protecting space. Specifically, the projection(s) are recessed relative to a line extending from the ground-contacting front edge of the tractor part to a ground-contacting point of the truck's rear wheels. This positioning prevents the projections from contacting the ground and suffering unnecessary wear-and-tear if, for example, the child pushes the detached trailer part across the floor or other surface.











These and other features of the invention are fully described and particularly pointed out in the claims. The following description and annexed drawings set forth in detail a certain illustrative embodiment of the invention, this embodiment being indicative of but one of the various ways in which the principles of the invention may be employed.




DRAWINGS





FIG. 1

is a side elevational view of a toy truck according to the present invention with the pivotal connection being shown in section.





FIG. 1A

is an enlarged view of the corresponding portion of FIG.


1


.





FIG. 2

is a top view of the toy truck,





FIG. 2A

is an enlarged view of the corresponding portion of FIG.


2


.





FIG. 3

is a top view of the tractor part of the toy truck.





FIG. 4

is a side view of the trailer part detached from the trailer part.











DETAILED DESCRIPTION




Referring now to the drawings in detail, and initially to

FIG. 1

, a toy truck


10


according to the present invention is shown. The toy truck


10


has a part


12


resembling a truck tractor, a part


14


resembling a truck trailer and a pivotal connection


16


therebetween. In the illustrated embodiment, the toy truck


10


is meant to mimic an ordinary semi tractor and trailer whereby the shape and painting of the parts


12


and


14


resemble the tractor and trailer of such a truck. If the toy truck


10


was instead meant to mimic a fire truck, a dump truck, a fuel-carrying truck, a mixer, a camper, a motorcycle or car hauler, a wrecker, or other type of truck or vehicle, the shape and painting of the parts


12


and


14


would be correspondingly changed to resemble such a truck.




The tractor part


12


has a front cab portion


18


and a platform portion


20


extending rearwardly therefrom and preferably configured to represent the “fifth wheel” of a tractor and trailer rig. The trailer part


14


has a front portion


22


that extends over the tractor's platform portion


20


and a rear portion


24


extending rearwardly therefrom. The pivotal connection


16


is positioned between the tractor platform portion


20


and the trailer front portion


22


. A child can control the truck's movement by pulling or pushing the tractor part


14


. The pivotal connection


16


allows the trailer part


14


to pivot relative to the tractor part


14


, so that the toy truck


10


can turn corners and accomplish other maneuvers.




Referring now additionally to

FIG. 1A

, the pivotal connection


16


between the tractor part


12


and the trailer part


14


can be more clearly seen. The pivotal connection


16


comprises a projection-receiving recess


32


and a pivot projection


34


. In the illustrated embodiment, the recess


32


is formed by the tractor part


12


and the projection


34


is attached to the trailer part


14


; however, this arrangement could be reversed if necessary or desired.




The illustrated recess


32


is formed by the empty space under the platform portion


20


of the tractor part


12


and a passageway


36


leads thereinto. The passageway


36


is preferably formed integrally with the platform portion


20


and includes an inlet


38


, a resilient outlet


40


, and a tapered wall


42


extending therebetween. The inlet


38


forms defines an opening somewhat wider than the widest portion of the projection


34


and the outlet


40


, in a relaxed state, defines an opening slightly less than the projection's widest portion. The resilient outlet


40


can be formed in any suitable manner. In the illustrated preferred embodiment, the outlet


40


is formed by a lower edge portion of the passageway


36


having circumferentially spaced apart axial slots. The slots open to the end of the of the passageway


36


and define therebetween a plurality of resilient fingers. Preferably, the tapered wall


42


has a first slope which translates into a steeper second slope before terminating at the outlet


40


.




The illustrated projection


34


comprises a stem


44


and a capture head


46


attached to the distal end thereof. The stem


44


is preferably formed integrally with the front portion


22


of the trailer part


14


and extends perpendicularly downwardly from the bottom surface of this portion. The capture head


46


can be a separate molded piece which is attached to the stem


44


with, for example, a rivet (not specifically shown) or other suitable fastening device. The length of the stem


44


determines the position of the capture head


46


relative to the passageway outlet


40


when the bottom surface of the trailer


14


rests flush against the top surface of the tractor's platform portion


20


. Specifically, the stem


44


can be dimensioned to define a clearance


48


which allows the trailer part


14


to be elevated relative to the tractor part


12


should the child be moving the toy truck


10


along an uneven terrain, such as a bumpy backyard or a hilly sandbox.




In the illustrated embodiment, the capture head


46


has a spherical shape whereby it has a widest portion


50


(i.e., at its approximate center), a proximate portion


52


tapering outwardly towards the widest portion


50


, and a distal portion


54


tapering inwardly towards the stem's bottom surface. As is explained in the succeeding paragraph, the head's spherical shape provides certain capturing advantages. However, other non-spherical geometries having a wide portion and appropriately tapering portions on either side thereof are possible with, and contemplated by, the present invention. In fact, certain advantages may be gained by just a wide portion and a tapering portion which slopes inwardly towards the bottom of the capture head


46


. Preferably, the bottom of the capture head


46


has a width which is at least 80% less, at least 75% less, and/or at least 70% less than width of the widest portion


50


. Likewise, the shoulder between the top of the capture head


46


and the stem


44


preferably has a width which is at least 80% less, at least 75% less, and/or at least 70% less than width of the widest portion


50


.




The pivotal connection


16


is accomplished by the child manipulating the parts


12


and


14


so that the capture head


46


drops into the passageway


36


and then pushing downward on the trailer part


14


(and/or upwardly on the tractor part


12


) so that the passageway's outlet


40


is temporarily urged radially outwardly. Once the widest portion


50


of the capture head


46


clears the outlet


40


, it springs back to its relaxed state thereby capturing the capture head


46


within the recess


32


. Specifically, in the illustrated embodiment, the widest portion


50


cams the outlet's resilient fingers radially outward and, after the capture head


46


clears the fingers, they spring back to restrict reverse passage of the projection


34


through the outlet


40


. To disconnect, the child pulls the parts


12


and


14


away from each other and the widest portion of the capture head


46


urges the outlet


40


radially outward to release the projection


32


from the recess


30


.




The tapering portions


52


and


54


of the capture head


46


, and/or the intermediate positioning of the capture head's widest portion


50


, facilitate the initial insertion of the capture head


46


into the passageway


36


and also facilitate the urging of the outlet


40


radially outward during both connecting and disconnecting steps. Additionally, the geometry of the passageway


36


and/or the capture head


46


provides a secure connection thereby preventing inadvertent detachment when, for example, the child lifts the toy truck


10


by only its trailer part


14


. Furthermore, the upper tapering portion


52


of the capture head


46


(above its widest portion


50


) increases the head-to-passageway clearance


48


to provide for additional relative elevation of the trailer part


14


when the toy truck


10


is being moved across an uneven terrain.




The pivotal connection


16


has associated therewith a projection-receiving groove


56


and a turn-limiting projection


58


. In the illustrated embodiment, the groove


56


is formed by the tractor part


12


and the projection


58


is attached to the trailer part


14


and both are integrally formed (e.g., molded) with their respective parts. However, a reverse arrangement (i.e., the groove


56


on the trailer part


14


and the projection


58


on the tractor part


12


) and/or a separate projection suitably attached to the appropriate part


12


/


14


, are possible with and contemplated by the present invention.




As is best seen by referring additionally to

FIGS. 2 and 3

, the groove


56


has an arc-shape having a lateral center aligned with the passageway


36


and the projection


58


fits within the groove


56


for sliding movement therein. In the illustrated embodiment, the groove


56


is positioned forward of the recess


32


and curves therearound. (See also

FIG. 2A.

) The groove


56


provides an almost 180° turning arc for the toy truck, although different turning parameters could be dictated by changing the geometry of the groove


56


. The groove


56


is preferably shallower than the passageway


36


and the turn-limiting projection


58


is preferably shorter than the pivot projection


34


. (See

FIG. 1A.

) During connection of the pivot projection


34


into the recess


30


, the projection


58


is essentially automatically mated with the groove


56


. Accordingly, this added feature of the pivotal connection


16


does not complicate connection or disconnection of the parts


12


and


14


.




The groove-and-projection arrangement dictates the maximum turn of the trailer part


14


relative to the tractor part


12


. Preferably, this arrangement is designed to provide a finger gap


60


between the most-adjacent side faces


62


and


64


of the tractor part


12


and the trailer part


14


, respectively, when the toy truck


10


is at a maximum turn position. (See

FIG. 2.

) In the illustrated embodiment, the most adjacent surfaces are the back wall of the front portion


18


of the tractor part and the lateral wall of the front portion


22


of the trailer part


14


. In any event, the finger gap


60


is dimensioned (e.g., at least 0.5 inches and/or at least 0.75 inches) to provide the child with enough space so that he/she could have the option of grasping the tractor part


16


in this area.




Referring now to

FIG. 4

, the trailer part


14


is shown detached from the tractor part


12


. In this detached condition, the trailer's front edge


70


rests upon the ground and the truck's rear wheels


72


elevate the rear of the trailer part


14


upward. A line


76


extends from the trailer's front edge


70


to the ground-contacting point of the wheels


72


and the projections


34


and


56


are recessed relative to this line


76


. This positioning of the projections


34


and


58


(and particularly the pivot pin


34


since it is longer) protects them from contacting the ground and suffering unnecessary wear-and-tear if, for example, the child pushes the detached trailer part


14


across the floor.




One may now appreciate that present invention provides a toy truck


10


having a secure but child-compatible connection between the tractor part


12


and the trailer part


14


, limits the maximum turn of the tractor part


12


relative to the trailer part


14


, and/or protects projections


34


/


58


against unnecessary wear-and-tear when the trailer part


14


is detached from the tractor part


12


.




Although the invention has been shown and described with respect to certain preferred embodiments, it is obvious that equivalent and obvious alterations and modifications will occur to others skilled in the art upon the reading and understanding of this specification. The present invention includes all such alterations and modifications.



Claims
  • 1. A toy vehicle comprising:a tractor part having a front portion and a platform portion extending rearwardly therefrom; a trailer part having a front portion that extends over the tractor's platform portion and a rear portion extending rearwardly therefrom; a pivotal connection positioned between the tractor's platform portion and the trailer's front portion; and a projection-and-groove arrangement, which dictates a maximum turn position for the toy vehicle; wherein the projection-and-groove arrangement provides a finger gap between most-adjacent side faces of the tractor part and the trailer part, respectively, when the toy vehicle is at a maximum turn position.
  • 2. A toy vehicle as set forth in claim 1, wherein the finger gap has a width of at least 0.50 inches.
  • 3. A toy vehicle as set forth in claim 2, wherein the finger gap has a width of at least 0.75 inches.
  • 4. A toy vehicle as set forth in claim 1, wherein the projection-and-groove arrangement comprises an arc-shaped groove and a turn-limiting projection which fits slidingly within the groove.
  • 5. A toy vehicle as set forth in claim 4, wherein the groove is formed by the tractor part and wherein the projection is attached to the trailer part.
  • 6. A toy vehicle as set forth in claim 5, wherein at least one of the groove and the projection is integrally formed with its respective parts.
  • 7. A toy vehicle as set forth in claim 4, wherein the groove provides an almost 180° turning arc for the toy vehicle.
  • 8. A toy vehicle comprising:a tractor part having a front portion, and a platform portion extending rearwardly therefrom; a trailer part having a front portion that extends over the tractor's platform portion and a rear portion extending rearwardly therefrom; and a pivotal connection positioned between the tractor's platform portion and the trailer's front portion, the pivotal connection including a recess on one of the tractor part and the trailer part and a pivot-projection on the other of the tractor part and the trailer part, and wherein: the pivot projection comprises a stem and a capture head having a wide portion and a distal portion tapering inwardly from the wide portion; and a passageway leads to the recess and the passageway includes an inlet wider than the wide portion of the pivot projection, and a resilient outlet slightly less wide, in a relaxed state, than the wide portion of the pivot projection.
  • 9. A toy vehicle as set forth in claim 8, wherein the bottom of the capture head has a width which is at least 80% less than the width of the wide portion.
  • 10. A toy vehicle as set forth in claim 9, wherein the bottom of the capture head has a width which is at least 75% less than the width of the wide portion.
  • 11. A toy vehicle as set forth in claim 10, wherein the bottom of the capture head has a width which is at least 70% less than the width of the wide portion.
  • 12. A toy vehicle as set forth in claim 11, wherein the capture head also comprises a proximate portion tapering outwardly towards the wide portion.
  • 13. A toy vehicle as set forth in claim 12, wherein the shoulder between the proximate portion and the stem has a width which is at least 80% less than the width of the wide portion.
  • 14. A toy vehicle as set forth in claim 13, wherein the shoulder between the proximate portion and the stem has a width which is at least 75% less than the width of the wide portion.
  • 15. A toy vehicle as set forth in claim 14, wherein the shoulder between the proximate portion and the stem has a width which is at least 70% less than the width of the wide portion.
  • 16. A toy vehicle as set forth in claim 8, wherein the capture head has a substantially spherical shape.
  • 17. A toy vehicle as set forth in claim 8, wherein the stem is dimensioned to define a clearance between the capture head and the outlet of the passageway thereby allowing the trailer part to be elevated relative to the tractor part should the child be moving the toy vehicle along an uneven terrain.
  • 18. A toy vehicle as set forth in claim 8, wherein the recess is formed by an empty space below the platform portion of the tractor part.
  • 19. A toy vehicle as set forth in claim 8, wherein the pivotal connection also comprises a projection-and-groove arrangement which dictates a maximum turn position for the toy vehicle.
  • 20. A toy vehicle as set forth in claim 19, wherein the projection-and-groove arrangement provides a finger gap between the most-adjacent side faces of the tractor part and the trailer part, respectively, when the toy vehicle is at a maximum turn position.
  • 21. A toy vehicle comprising:a tractor part having a front portion, and a platform portion extending rearwardly therefrom; a trailer part having a front portion that extends over the tractor's platform portion and a rear portion extending rearwardly therefrom; and a pivotal connection positioned between the tractor's platform portion and the trailer's front portion, the pivotal connection including a projection-and-recess arrangement which allows pivotal movement between the tractor part and the trailer part and a projection-and-groove arrangement which dictates a maximum turn position for the toy vehicle; wherein the projection-and-groove arrangement provides a finger gap between most-adjacent side faces of the tractor part and the trailer part, respectively, when the toy vehicle is at a maximum turn position.
  • 22. A toy vehicle as set forth in claim 21, wherein the projection-and-recess arrangement comprises a recess formed on the tractor part and a pivot-projection attached to the trailer part, and wherein the projection-and-groove arrangement comprises a groove formed on the tractor part and a turn-limiting projection attached to the tractor part.
  • 23. A toy vehicle as set forth in claim 22, wherein the groove is positioned forward of the recess and curves therearound.
  • 24. A toy vehicle as set forth in claim 22, wherein the groove is shallower than the recess and wherein the turn-limiting projection is shorter than the pivot projection.
  • 25. A toy vehicle comprising:a tractor part having a front portion and a platform portion extending rearwardly therefrom; a trailer part having a front portion that extends over the tractor's platform portion and a rear portion extending rearwardly therefrom; and a pivotal connection positioned between the tractor's platform portion and the trailer's front portion, the pivotal connection including a recess formed on the tractor part and a pivot-projection attached to the trailer part for receipt into the recess; wherein the pivot-projection is recessed relative to a line extending from a ground-contacting front edge of the tractor part to a ground-contacting point of rear wheels of the vehicle whereby, when the trailer part is detached from the tractor part, the pivot-projections will be protected from contacting the ground.
  • 26. A toy vehicle as set forth in claim 25, further comprising a projection-and-groove arrangement, which dictates a maximum turn position for the toy vehicle and which includes a projection attached to the trailer part, and wherein this projection is also is recessed relative to the line extending from the ground-contacting front edge of the tractor part to the ground-contacting point of the rear wheels of the vehicle whereby, when the trailer part is detached from the tractor part, this projection will also be protected from contacting the ground.
RELATED APPLICATION

This application claims priority under 35 U.S.C. §119(e) to U.S. Provisional Patent Application No. 60/419,925 filed on Oct. 21, 2002. The entire disclosure of this earlier application is hereby incorporated by reference.

US Referenced Citations (13)
Number Name Date Kind
2201910 Meienborn May 1940 A
2233116 Voorheis Feb 1941 A
2602266 Preston Jul 1952 A
3822501 Kelterstr Jul 1974 A
4304066 Brand et al. Dec 1981 A
4366645 Crain et al. Jan 1983 A
4372075 Harkins Feb 1983 A
4512483 Crossley et al. Apr 1985 A
4516948 Obara May 1985 A
4617001 Parein Oct 1986 A
4708683 Lehmann et al. Nov 1987 A
5209693 Lyman May 1993 A
5924910 Liu Jul 1999 A
Foreign Referenced Citations (3)
Number Date Country
3700947 Jul 1988 DE
29701360 Apr 1997 DE
0044148 Jan 1982 EP
Provisional Applications (1)
Number Date Country
60/419925 Oct 2002 US