US3874111A - Toy bulldozer - Google Patents
Toy bulldozer Download PDFInfo
- Publication number
- US3874111A US3874111A US437881A US43788174A US3874111A US 3874111 A US3874111 A US 3874111A US 437881 A US437881 A US 437881A US 43788174 A US43788174 A US 43788174A US 3874111 A US3874111 A US 3874111A
- Authority
- US
- United States
- Prior art keywords
- tractor
- blade
- extending
- handle
- bulldozer
- 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
Links
- 239000000463 material Substances 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 235000016477 Taralea oppositifolia Nutrition 0.000 description 1
- 241001358109 Taralea oppositifolia Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
- A63H17/00—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor
- A63H17/12—Toy vehicles, e.g. with self-drive; ; Cranes, winches or the like; Accessories therefor with cranes, winches or the like
Definitions
- ABSTRACT A toy bulldozer including a tractor having a dozer blade extending across the front thereof with arms extending rearwardly from the blade on either side of the tractor and having their rear ends pivoted to the tractor on a common transverse axis, and a control mechanism for raising and lowering the blade about said pivot axis comprising a handle having its lower end pivoted to the blade and extending upwardly therefrom slidably through a simulated hydraulic cylinder of resilient plastic material which is mounted on the front portion of the tractor.
- Catch means are provided for releasably locking the handle at various positions of vertical adjustment with the blade at different elevations.
- This invention relates generally to miniature toy vehicles and more particularly concerns toy bulldozers or the like wherein an earthmoving blade is mounted on the vehicle extending crosswise to the direction of travel and wherein the blade is vertically adjustable between different positions of elevation.
- toy bulldozers have generally comprised a tractor with a front dozer blade which is vertically movable by some sort of lever mechanism. This is not realistic of the full counterpart where such dozer blades are now generally vertically adjusted by means of hydraulic cylinders.
- the object of the present invention is to provide a miniature toy bulldozer wherein the dozer blade is adjusted to its various positions through a hand control device which simulates a hydraulic cylinder in appearance and in some respects in operation.
- the invention broadly comprises a toy bulldozer wherein the bulldozer blade has a handle which is mounted for vertical sliding movement in simulated hydraulic cylinders to give the appearance of hydraulic cylinders operating the blade adjustment.
- Catch means acting between the handle and cylinders lock the blade in adjusted position.
- FIG. I is aside elevation ofthe toy bulldozer with the dozer blade positioned at ground level.
- FIG. 2 is a top plan view of the front portion of a bulldozer embodying the present invention.
- FIG. 3 is a transverse section taken on line 3-3 of FIG. 1 and looking forwardly.
- a toy tractor has front wheels 11 and rear wheels 12 at each side.
- a track 14 of flexible resilient material is trained around the pair of wheels 11, 12 on each side of the tractor.
- the tractor 10 includes a front end portion 15 as well as side portions 16.
- a bulldozer blade 17 extends crosswise in front of tractor l2 and is connected to a pair of L-shaped brackets or arms 18 each of which has its forward portion 19 integrally secured to the blade and then extends rearwardly alongside the tractor with its rear end journaled on a pin 20 extending laterally from the adjacent side portion 16. Blade 17 is thus movable in a generally vertical direction about the axis of pins 20.
- the device for adjusting blade 17 and securing it in a desired position of adjustment is denoted generally by the numeral 22.
- This comprises a U-shaped handle 24 having a bight portion 25 connecting parallel legs 26 at their upper ends.
- legs 26 are provided with aligned terminals 27 which are journaled in apertured tabs 28 mounted on the bracket portions 19 and extending rearwardly therefrom.
- Each of the legs 26 has upper and lower catches denoted respectively at 29 and 30 formed on the rear side thereof.
- a pair of simulated hydraulic cylinders 31 are mounted one on each side of the front end portions 15 of the tractor. These are tubular shaped members of relatively rigid plastic material which are split up the rear side leaving the open slot 32 through which the legs 26 can be inserted into the members during assernbly. At approximately their longitudinal centers the members 31 have integrally formed U-shaped collars 34 each of which has a pair of laterally spaced tabs 35 which are journaled on a cross pin 36 mounted to extend transversely through the tractor front portion 15. Pin 36 is spaced relative to the catches 29 and 30 so as to interfere with smooth longitudinal sliding movement of legs 26 in members 31.
- the numeral 37 denotes a simulated hydraulic line which leads from the upper end of one member 31 through the front portion 15 of the tractor to the upper end of the other member 31. Accordingly, both members 31 and line 37 are formed as a single molded plastic part.
- the handle 24 In normal operating position with the dozer blade in scraping relation along the surface of ground G, the handle 24 is in its lowered position as shown in FIGS. 1, 2 and 3. In this position the catches 29 and 30 on the legs 26 will be below the pin 36 as shown in FIG. 4. The engagement between the catches 29 and the pin 36 will yieldably retain the dozer blade in this lowered position.
- the blade 17 may be raised to an intermediate position or to a fully raised transport position by pulling upwardly on the handle bight portion 25.
- the member 3 acts as a spring and the upper and lower ends thereof will flex upwardly shown in FIG. 5 allowing the catches to pass over the pin.
- token members 31 yieldably retain the dozer blade in any adjusted position.
- the adjustment of the dozer blade is about the axis of pin 20. It will also be understood that the handle 24 and members 31 will tilt about the axis of pin 36 during raising or lowering of the blade.
- a bulldozer blade extending across the front of the tractor with a pair of arms extending rearwardly from the blade one on each side of the tractor and having their rear ends pivoted to the tractor on a common horizontal axis extending transversely of the tractor,
- locking means acting between at least one of said legs and cylinderfor releasably locking the leg in various positions therein.
Landscapes
- Operation Control Of Excavators (AREA)
- Toys (AREA)
- Automatic Assembly (AREA)
- Portable Nailing Machines And Staplers (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US437881A US3874111A (en) | 1974-01-30 | 1974-01-30 | Toy bulldozer |
CA206,661A CA1000502A (en) | 1974-01-30 | 1974-08-09 | Toy bulldozer |
ES1974205295U ES205295Y (es) | 1974-01-30 | 1974-08-14 | Empujadora-niveladora de juguete. |
AU72292/74A AU478818B2 (en) | 1974-01-30 | 1974-08-14 | Toy bulldozer |
GB4175774A GB1431246A (en) | 1974-01-30 | 1974-09-25 | Toy vehicle |
IT53756/74A IT1021950B (it) | 1974-01-30 | 1974-10-28 | Bulldozer giocattolo |
JP49133508A JPS50108044A (xx) | 1974-01-30 | 1974-11-20 | |
HK640/76*UA HK64076A (en) | 1974-01-30 | 1976-10-14 | Toy vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US437881A US3874111A (en) | 1974-01-30 | 1974-01-30 | Toy bulldozer |
Publications (1)
Publication Number | Publication Date |
---|---|
US3874111A true US3874111A (en) | 1975-04-01 |
Family
ID=23738310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US437881A Expired - Lifetime US3874111A (en) | 1974-01-30 | 1974-01-30 | Toy bulldozer |
Country Status (7)
Country | Link |
---|---|
US (1) | US3874111A (xx) |
JP (1) | JPS50108044A (xx) |
CA (1) | CA1000502A (xx) |
ES (1) | ES205295Y (xx) |
GB (1) | GB1431246A (xx) |
HK (1) | HK64076A (xx) |
IT (1) | IT1021950B (xx) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD424130S (en) * | 1999-03-18 | 2000-05-02 | Wah Hing Toys Development Co., Ltd. | Toy vehicle |
US6508320B2 (en) | 2001-02-08 | 2003-01-21 | Mattel, Inc. | Children's ride-on vehicle and bucket assembly |
USD978260S1 (en) * | 2020-04-13 | 2023-02-14 | Shantou Jiabaile Baby Products Co. Ltd | Toy crane |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2557851A (en) * | 1949-01-29 | 1951-06-19 | Russell O Warner | Load-carrying attachment for toy tractors |
US2563974A (en) * | 1946-06-21 | 1951-08-14 | John A Thierry | Toy excavator |
US2702963A (en) * | 1952-05-10 | 1955-03-01 | Carl A Swenson | Toy loader |
US2812869A (en) * | 1954-11-17 | 1957-11-12 | Marx & Co Louis | Toy power shovel |
US2985983A (en) * | 1959-05-01 | 1961-05-30 | Wilbert P Konstenius | Toy power shovel |
US3161987A (en) * | 1963-01-16 | 1964-12-22 | Structo Mfg Company | Bulldozer toy with automatic dump mechanism |
US3462874A (en) * | 1968-01-17 | 1969-08-26 | Tonka Corp | Toy loader |
US3711990A (en) * | 1971-03-08 | 1973-01-23 | Tonka Corp | Cylinder mounting for toy dump truck |
-
1974
- 1974-01-30 US US437881A patent/US3874111A/en not_active Expired - Lifetime
- 1974-08-09 CA CA206,661A patent/CA1000502A/en not_active Expired
- 1974-08-14 ES ES1974205295U patent/ES205295Y/es not_active Expired
- 1974-09-25 GB GB4175774A patent/GB1431246A/en not_active Expired
- 1974-10-28 IT IT53756/74A patent/IT1021950B/it active
- 1974-11-20 JP JP49133508A patent/JPS50108044A/ja active Pending
-
1976
- 1976-10-14 HK HK640/76*UA patent/HK64076A/xx unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2563974A (en) * | 1946-06-21 | 1951-08-14 | John A Thierry | Toy excavator |
US2557851A (en) * | 1949-01-29 | 1951-06-19 | Russell O Warner | Load-carrying attachment for toy tractors |
US2702963A (en) * | 1952-05-10 | 1955-03-01 | Carl A Swenson | Toy loader |
US2812869A (en) * | 1954-11-17 | 1957-11-12 | Marx & Co Louis | Toy power shovel |
US2985983A (en) * | 1959-05-01 | 1961-05-30 | Wilbert P Konstenius | Toy power shovel |
US3161987A (en) * | 1963-01-16 | 1964-12-22 | Structo Mfg Company | Bulldozer toy with automatic dump mechanism |
US3462874A (en) * | 1968-01-17 | 1969-08-26 | Tonka Corp | Toy loader |
US3711990A (en) * | 1971-03-08 | 1973-01-23 | Tonka Corp | Cylinder mounting for toy dump truck |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD424130S (en) * | 1999-03-18 | 2000-05-02 | Wah Hing Toys Development Co., Ltd. | Toy vehicle |
US6508320B2 (en) | 2001-02-08 | 2003-01-21 | Mattel, Inc. | Children's ride-on vehicle and bucket assembly |
USD978260S1 (en) * | 2020-04-13 | 2023-02-14 | Shantou Jiabaile Baby Products Co. Ltd | Toy crane |
Also Published As
Publication number | Publication date |
---|---|
ES205295Y (es) | 1976-06-01 |
GB1431246A (en) | 1976-04-07 |
AU7229274A (en) | 1976-02-19 |
HK64076A (en) | 1976-10-22 |
JPS50108044A (xx) | 1975-08-26 |
ES205295U (es) | 1976-02-01 |
IT1021950B (it) | 1978-02-20 |
CA1000502A (en) | 1976-11-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FIRST NATIONAL BANK, THE, ILLINOIS Free format text: SECURITY INTEREST;ASSIGNOR:TONKA CORPORATION;REEL/FRAME:005001/0980 Effective date: 19871016 |