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 Title: |
US4171132:
Infant walking trainer
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Kassai, Kenzou; Higashishimizu, Japan
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| Assignee: |
Kassai Kabushiki Kaisha, Osaka, Japan
other patents from KASSAI KABUSHIKIKAISHA (306915) (approx. 58)
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| Published / Filed: |
1979-10-16
/ 1977-12-19
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| Application Number: |
US1977000862056
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| IPC Code: |
Advanced:
A47D 13/04;
F16C 11/10;
Core:
A47D 13/00;
F16C 11/04;
IPC-7:
A47D 13/04;
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| ECLA Code: |
A47D13/04B; F16C11/10;
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| U.S. Class: |
Current:
280/087.05;
248/188.6;
280/087.051;
280/639;
297/005;
403/100;
Original:
272/070.3;
248/188.6;
280/087.05;
297/005;
403/100;
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| Field of Search: |
272/70.3,70
D12/130
280/87.02 R,87.02 W,87.05,7.1,7.11,43,647,648,649,650
015/185
297/5;6
248/188.6,188.8,166
403/100
292/263,152
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| Priority Number: |
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| Abstract: |
An infant walking trainer can be folded by easy operation. The infant walking trainer includes a lower circular frame provided with a plurality of wheels, an upper circular frame confronting the lower circular frame, a lower supporting rod pivotally and rotatably projecting from the lower circular frame, and an upper supporting rod pivotally and rotatably depending from the upper circular frame. A connecting means connects the upper end of the lower supporting rod and the lower end of the upper supporting rod rotatably with each other. Lower and upper engaging grooves and lower and upper engaging portions are provided on the upper end of the lower supporting rod and on the lower end of the upper supporting rod respectively. An engaging member fixes the lower and upper supporting rods collinearly by being engaged with the lower and upper engaging portions, the engaging means being slidable with the lower and upper engaging grooves. A resilient engaged state maintaining member maintains the engaged state of the engaging member.
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| Attorney, Agent or Firm: |
Browdy and Neimark ;
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| Primary / Asst. Examiners: |
Pinkham, Richard C.; Kramer, Arnold W.
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| INPADOC Legal Status: |
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| Family: |
Show 10 known family members
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First Claim:
Show all 3 claims |
What is claimed is:
1. An infant walking trainer, comprising:
- a lower circular frame provided with a plurality of wheels;
- an upper circular frame confronting said lower circular frame;
- a lower supporting rod pivotally and rotatably projecting from said lower circular frame;
- a first stopper provided on said lower circular frame and contacting the outer side of said lower supporting rod when in the engaged state, for limiting outward rotation of said lower supporting rod;
- an upper supporting rod pivotally and rotatably depending from said upper circular frame;
- a second stopper provided in the internal surface of said upper circular frame and contacting the outer side of said upper supporting rod when in the engaged state, for limiting outward rotation of said upper supporting rod;
- a connecting means connecting the upper end of said lower supporting rod and the lower end of said upper supporting rod rotatably with each other;
- at least one lower and one upper engaging groove and a lower and an upper engaging portion which are provided on the upper end of said lower supporting rod and on the lower end of said upper supporting rod, respectively;
- an engaging means for fixing said lower and upper supporting rods collinearly by engaging both said lower and upper engaging portions when in the engaged state, said engaging means being slidable with said lower and upper engaging grooves; and
- an engaged state maintaining means for maintaining the engaged state of said engaging means.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 19 U.S. patent(s) that reference this one
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