US3475851A - Toy cranes - Google Patents

Toy cranes Download PDF

Info

Publication number
US3475851A
US3475851A US3475851DA US3475851A US 3475851 A US3475851 A US 3475851A US 3475851D A US3475851D A US 3475851DA US 3475851 A US3475851 A US 3475851A
Authority
US
United States
Prior art keywords
jib
crane
shaft
base
toy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Godtfred Kirk Christiansen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Interlego AG
Original Assignee
Interlego AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DK564666A priority Critical patent/DK109706C/en
Application filed by Interlego AG filed Critical Interlego AG
Application granted granted Critical
Publication of US3475851A publication Critical patent/US3475851A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00Other toys
    • A63H33/30Imitations of miscellaneous apparatus not otherwise provided for, e.g. telephones, weighing-machines, cash-registers
    • A63H33/3044Loading stations, e.g. with conveyors, elevators, cranes

Description

United States Patent 0.

3,475,851 TOY CRANES Godtfred Kirk Christiansen, Billund, Denmark, assignor to Interlego A.G., Zug, Switerland Filed Oct. 24, 1967, Ser. No. 677,624 Claims priority, application Denmark, Oct. 31, 1966, 5,646/66 Int. Cl. A63h 33/30 US. Cl. 4640 3 Claims ABSTRACT OF THE DISCLOSURE A toy crane comprising a horizontal reel shaft mounted in a frame and a jib swingably mounted in the frame around the reel shaft, the lower end of the jib being provided with at least one contact face arranged so as to contact the upper face of the base of the crane in at least one extreme position of the jib, thereby causing a load on the outer (top) end of the jib to exert a braking pressure on the reel shaft.

This invention relates to a toy crane of the type having a horizontal reel shaft mounted in a frame and a jib pivotable in the vertical plane.

Such a toy crane may be adapted particularly to be mounted at the rear body or platform of a toy truck to make it represent a crane truck.

It is an object of the invention to adapt the crane to be self-locking in one or in both the extreme positions when loaded, so that the load is retained in said position or positions.

This has been achieved according to the invention by a toy crane in which the jib is mounted by its lower end swingably around the reel shaft and has at least one contact face which on engagement with the crane base in the extreme position of the jib will cause a braking pressure to be exerted on the reel shaft when the outer end of the jib is loaded.

The contact face or faces, which on engagement with the base will cause a braking pressure to be exerted on the reel shaft, may, for all practical purposes, be arranged in various ways. In a preferred embodiment of the invention the lower end of the jib contour is defined by an arc, concentrically disposed with respect to the axis of the reel shaft, and by two inclined contact faces forming an acute angle with the longitudinal axis of the jib.

The invention will be explained here with reference to the drawings, in which:

FIG. 1 and FIG. 2 illustrate a crane according to the invention viewed in side elevation and in perspective, while FIG. 3 presents a schematic view of the construction of the jib showing the contact faces, by which the desired effect has been achieved.

The toy crane illustrated by the drawing comprises a jib pivotable in the vertical plane and formed, as shown in FIG. 2, by two identical halves connected by a grating. The jib 1 is pivotable about a fulcrum pin 2 mounted in two side members 3 and serving also as shaft for a reel 5 for winding the cord 6 carrying the crane hook 7.

The side members 3, which form the frame of the crane, are mounted on a base 4. This base 4 and the side members 3 may be provided with coupling studs 8, and, moreover, the bottom of the base may be provided with secondary coupling studs enabling the crane to be mounted on elements of a building set with corresponding coupling means, such as a base plate 9 of a building set. The base plate 9 may form part of the body of a truck so that the crane may be mounted at the rear of the truck to make it 3,475,851 Patented Nov. 4, 1969 ice represent a crane truck. One end of the reel shaft 2 is provided with a handle 2 for winding the cord 6 onto the reel 5.

The jib 1 may be swung in the vertical plane about the shaft 2 between two extreme or lowered positions, indicated by the dotted lines in FIG. 3 and designated 1' and 1", respectively. In these extreme positions the reel shaft 2 is pinched and therefore locked to prevent shaft rotation and to retain the load in raised position. In this context, as is apparent from the drawings, the extreme or lowered position is the position assumed by the jib when it is swung over as far as possible in one direction (due either to the weight of the load or manual manipulation by the'operator) so that one of the contact faces thereof touches the base member.

This locking effect has been achieved by shaping the jib 1 as shown in FIG. 3. The configuration of the lower end of the jib is defined by an arc 1b which is concentric with the reel shaft 2 and by two inclined contact faces 1a. The upper part of the jib is similarly defined by two edges 10 converging towards the upper end of the jib. The two halves of the jib 1 are symmetrical with respect to a longitudinal axis xx.

In FIG. 3 the jib is indicated in full lines in the vertical central position, from which it may be swung out into one of the extreme positions, as indicated by the arrows p.

In each of the extreme positions means in the form of one of the faces 1a will engage the upper face of the base 4, as indicated at 10' to cause the jib to exert braking pressure on the reel shaft. When the jib is loaded in one of these extreme positions, as indicated at the arrow p at the right hand side of FIG. 3, it will act as a two-arm lever with an imaginary fulcrum O, subjecting the shaft 2 to an upwardly directed component force Q which will exert a braking pressure on the shaft 2.

What I claim is:

1. A toy crane comprising a base, a pair of side members mounted on said base, so as to constitute a frame, a jib pivotally mounted in said frame, so as to be swingable in a vertical plane, a reel shaft pivotally mounted in said frame, and a reel mounted on said shaft intermediate said side members of said frame, the lower part of said jib adjacent the frame being pivotally mounted on said reel shaft and having means including at least one contact face adapted to contact the upper face of said base in at least one extreme position of the jib relative to the frame and arranged in such a manner as to cause said contact face to contact said base and thus cause said jib to exert a braking pressure on said reel shaft when said jib is in an extreme position.

2. A jib for a toy crane, as defined in claim 1, comprising a pair of interconnected arms, means for pivotably mounting said arms on a reel shaft of said crane, the contour of the lower part of said jib adjacent said shaft being defined by an arc co-axially disposed with respect to the axis of said shaft and by a pair of contact faces diverging from said are in the lengthwise direction of the jib.

3. A jib, as defined in claim 2, in which the said contact faces are disposed symmetrically with respect to the longitudinal axis of the jib.

References Cited UNITED STATES PATENTS 2,020,802 11/1935 Sauer 46-40 XR 2,864,200 12/1958 Brutting 46-40 3,001,763 9/1961 Pilot 4640 XR 3,358,850 12/1967 Neils 4640 XR LOUIS G. MANCENE, Primary Examiner H. DINITZ, Assistant Examiner

US3475851D 1966-10-31 1967-10-24 Toy cranes Expired - Lifetime US3475851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK564666A DK109706C (en) 1966-10-31 1966-10-31 Toy Crane.

Publications (1)

Publication Number Publication Date
US3475851A true US3475851A (en) 1969-11-04

Family

ID=8144185

Family Applications (1)

Application Number Title Priority Date Filing Date
US3475851D Expired - Lifetime US3475851A (en) 1966-10-31 1967-10-24 Toy cranes

Country Status (4)

Country Link
US (1) US3475851A (en)
DE (1) DE1603196B2 (en)
DK (1) DK109706C (en)
GB (1) GB1137469A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4319528A (en) * 1978-11-13 1982-03-16 Pullman Incorporated Railway passenger car interior paneling and finish assembly
US5865661A (en) * 1997-10-03 1999-02-02 Parvia Corporation Toy vehicular drive apparatus
US5924905A (en) * 1997-09-24 1999-07-20 Parvia Corporation Modular terrain for a toy building set
US5947787A (en) * 1997-09-24 1999-09-07 Parvia Corporation Modular lattice substructure for a toy building set
US5951356A (en) * 1997-10-27 1999-09-14 Parvia Corporation Modular lattice substructure for a toy building set having columns and foundations
US5993283A (en) * 1997-09-30 1999-11-30 Parvia Corporation Modular buildings for a toy building set
US6007401A (en) * 1997-10-03 1999-12-28 Parvia Corporation Optoelectric remote control apparatus for guiding toy vehicles
US6012957A (en) * 1997-10-27 2000-01-11 Parvia Corporation Single beam optoelectric remote control apparatus for control of toys
US6102770A (en) * 1997-10-03 2000-08-15 Parvia Corporation Toy vehicular electromechanical guidance apparatus
US6129605A (en) * 1997-09-24 2000-10-10 Parvia Corporation Modular base units for a toy building set

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3303430A1 (en) * 1983-02-02 1984-08-09 Neuhierl Hermann Toy brick

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2020802A (en) * 1934-01-29 1935-11-12 Ohio Electric Mfg Co Toy magnet crane
US2864200A (en) * 1953-06-01 1958-12-16 Martin Fuchs Toys with independent release mechanisms for each winding drum
US3001763A (en) * 1958-10-10 1961-09-26 Andrew A Pilot Hoist and towing attachment for children's wagons
US3358850A (en) * 1966-11-28 1967-12-19 Kenneth G Neils Mobile manipulative toy for child participation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2020802A (en) * 1934-01-29 1935-11-12 Ohio Electric Mfg Co Toy magnet crane
US2864200A (en) * 1953-06-01 1958-12-16 Martin Fuchs Toys with independent release mechanisms for each winding drum
US3001763A (en) * 1958-10-10 1961-09-26 Andrew A Pilot Hoist and towing attachment for children's wagons
US3358850A (en) * 1966-11-28 1967-12-19 Kenneth G Neils Mobile manipulative toy for child participation

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4319528A (en) * 1978-11-13 1982-03-16 Pullman Incorporated Railway passenger car interior paneling and finish assembly
US5924905A (en) * 1997-09-24 1999-07-20 Parvia Corporation Modular terrain for a toy building set
US5947787A (en) * 1997-09-24 1999-09-07 Parvia Corporation Modular lattice substructure for a toy building set
US6129605A (en) * 1997-09-24 2000-10-10 Parvia Corporation Modular base units for a toy building set
US5993283A (en) * 1997-09-30 1999-11-30 Parvia Corporation Modular buildings for a toy building set
US5865661A (en) * 1997-10-03 1999-02-02 Parvia Corporation Toy vehicular drive apparatus
US6007401A (en) * 1997-10-03 1999-12-28 Parvia Corporation Optoelectric remote control apparatus for guiding toy vehicles
US6102770A (en) * 1997-10-03 2000-08-15 Parvia Corporation Toy vehicular electromechanical guidance apparatus
US5951356A (en) * 1997-10-27 1999-09-14 Parvia Corporation Modular lattice substructure for a toy building set having columns and foundations
US6012957A (en) * 1997-10-27 2000-01-11 Parvia Corporation Single beam optoelectric remote control apparatus for control of toys

Also Published As

Publication number Publication date
DE1603196A1 (en) 1971-06-03
DK109706C (en) 1968-06-10
DE1603196B2 (en) 1977-04-07
GB1137469A (en) 1968-12-18

Similar Documents

Publication Publication Date Title
US4605243A (en) Folding pushchair
US4461471A (en) Walker
US2382767A (en) Boom for load handling machines
US3190677A (en) Clevis with spring-operated pin
US2975929A (en) Goods support for a loading foot or the like
US3007592A (en) Hoist attachment for fork lift trucks
US2937850A (en) Desk mobile lifter
US3698569A (en) Mobile crane with jib extension
US3741575A (en) Automatic brake for skis
US2852304A (en) Dumping wheelbarrow
US2489188A (en) Automatically folding play yard
US2967730A (en) Concrete block lifter
US1827541A (en) Child's power shovel
US1952467A (en) Child's convertible rocker and vehicle
US3043394A (en) Boom attachments
US1573263A (en) Lifting tongs
US2508934A (en) Lifting jack
US2669733A (en) Detachable platform for small boats
US2942886A (en) Tethered ring games
US4113301A (en) Compact tent-type camping trailer
US5082127A (en) Collapsible lift trolley
US2135961A (en) Tent frame
US1436703A (en) Rope handle
US3657944A (en) Detachable handle extension for chain tightener
US2819907A (en) Convertible roller skate and ski