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US 9,643,098 B2Granted
Toy vehicle—digger
AssigneeFranz Schneider GmbH & Co. KG
InventorsFrank Schneider, Ulrich Ewringmann
Life of this patent
Estimating the term…
Abstract
The toy vehicle with a chassis, on which a vertical shaft with a seat is rotatably arranged, wherein the shaft is rigidly connected to a cantilever arm, pivotally connected to which is an end section of a digger arm, which is provided with a handle and whose other end section is connected to a pivotable bucket arm, which carries a pivotable bucket, is characterised in that tensioned between the cantilever arm and the digger arm there is a spring device, which biases the digger arm into a raised position and is increasingly tensioned when the digger arm is lowered.
Claims7
A toy vehicle comprising:
- a chassis;
- a vertical shaft rotatably arranged on the chassis;
- a seat affixed to the vertical shaft;
- a cantilever arm rigidly connected to the vertical shaft;
- a digger arm pivotally connected on one end by a horizontal shaft to the cantilever arm;
- a handle attached to the digger arm;
- a bucket arm pivotally connected to another end of the digger arm,
- a bucket pivotally connected to the bucket arm;
- a helical spring having two projecting end sections, wherein one end section is retained in the cantilever arm and the other end section is retained in the digger arm;
- wherein the helical spring biases the digger arm into a raised position and is increasingly tensioned as the digger arm is lowered to thereby brake downward movement of the bucket and to assist lifting the bucket when loaded;
- and
- a bearing body located within and engaging the helical spring internally, the bearing body having a hub in its centre that receives the horizontal shaft, the bearing body having a peripheral wall that is elastically radially compressible by the helical spring so that the helical spring can be radially compressed or expanded on pivotal movement of the digger arm.
9 more elements
Dependencies are inferred from the claim text.