Lid opening device
AssigneeNifco Inc.
InventorAkihiko Hirose
Life of this patent
Estimating the term…
Abstract
A lid opening device includes a lid body having a pivotal support part on one end thereof pivotally supported on a main body for opening and closing a part of the main body; an engaging member provided on a perimeter around the pivotal supporting part on the lid body; a spring device for urging the engaging member toward a direction in which the lid body opens from the completely closed position; a locking device for holding the lid body in the completely closed position against a springing force of the spring forcing device; and an engaging range restricting device for restricting a range of engagement between the spring forcing device and the engaging member. The lid body urged by the springing force opens at a specific initial opening position.
Claims9
A lid opening device, comprising:
- a main body having an opening,
- a lid body for opening and closing the opening of the main body,
- a pivotal support part integrally formed on one end of the lid body and pivotally supported on the main body,
- an engaging member provided on a perimeter of the pivotal support part of the lid body,
- spring means attached to the main body for urging the engaging member of the lid body toward an opening direction thereof, said spring means having a spring supported on the main body, and a swivel arm provided on the main body to swivel freely and urged by the spring, said swivel arm having one end contacting the engaging member of the lid body and being urged by the spring toward the opening direction of the lid,
- locking means formed between the lid body and the main body for holding the lid body in a closed position against an urging force of the spring means, and
- engaging range restricting means formed on the main body for restricting a range of engagement between the spring means and the engaging member of the pivotal support part so that the lid body is opened by the urging force of the spring means to a predetermined initial opening position.
A lid opening device, comprising:
- a main body having an opening,
- a lid body for opening and closing the opening of the main body,
- a pivotal support part integrally formed on one end of the lid body and pivotally supported on the main body,
- an engaging member provided on a perimeter of the pivotal support part of the lid body,
- spring means attached to the main body for urging the engaging member of the lid body toward an opening direction thereof,
- locking means formed between the lid body and the main body for holding the lid body in a closed position against an urging force of the spring means,
- engaging range restricting means formed on the main body for restricting a range of engagement between the spring means and the engaging member of the pivotal support part so that the lid body is opened by the urging force of the spring means to a predetermined initial opening position, and
- elastic engaging means disposed between the lid body and the main body for elastically engaging the lid body at a position where the lid body is opened to a predetermined opening position so that the lid body is held at the predetermined opening position beyond the predetermined initial opening position.
A lid opening device, comprising:
- a main body having an opening,
- a lid body for opening and closing the opening of the main body,
- a pivotal support part integrally formed on one end of the lid body and pivotally supported on the main body,
- an engaging member provided on a perimeter of the pivotal support part of the lid body,
- spring means attached to the main body, said spring means contacting the engaging member of
- the lid body and pivotally urging the lid body toward an opening direction thereof,
- locking means formed between the lid body and the main body for holding the lid body in a closed position against an urging force of the spring means, and
- engaging range restricting means formed on the main body adjacent to the spring means for restricting a range of engagement between the spring means and the engaging member of the pivotal support part so that the lid body in a closed condition is opened by the urging force of the spring means to a predetermined initial opening position where the spring means is stopped by the engaging range restricting means while allowing a further movement of the lid body beyond the predetermined initial opening position.
Dependencies are inferred from the claim text.