Lock device, display apparatus and liquid crystal apparatus
First Claim
1. A lock device for securing at an arbitrary revolution angle a supported body revolvably supported by a support, comprising:
- a revolution shaft;
a torsion spring into which said revolution shaft is inserted in an intimately contacting state, said torsion spring having a free end side and a fixed end,a holding member for attachment to the support or supported body so as to hold said revolution shaft rotatably and having an engaging part engaged with the fixed end of said torsion spring;
a stopper member secured to said revolution shaft the free end side of said torsion spring for preventing the fixed end of said torsion spring from coming off of said engaging part; and
an interlocked rotating member disposed rotatably on said revolution shaft between said stopper member and the free end of said torsion spring so as to abut to and rotate together with the free end of the torsion spring when the supported body is revolved in a reverse direction relative to the winding direction of said torsion spring.
1 Assignment
0 Petitions
Accused Products
Abstract
A supported body, such as a display panel or liquid crystal panel, is revolvably supported by a support via a revolution shaft and secured at an arbitrary revolution angle by a lock device. The lock device includes a torsion spring having a free end and a fixed end, into which the revolution shaft is inserted in an intimately contacting state, a holding member provided to the support or supported body so as to hold the revolution shaft rotatably and having an engaging part engaged with the fixed end of the torsion spring, and a stopper member secured to the revolution shaft and abutting the free end of the torsion spring for preventing coming-off of the fixed end of the torsion spring from the engaging part. In addition, an interlocked rotating member is disposed rotatably on the revolution shaft between the stopper member and the free end of the torsion spring so as to abut to and rotate together with the free end of the torsion spring when the supported body is revolved in a reverse direction relative to the winding direction of the torsion spring. The torsion spring and the stopper member can be replaced with a pair of torsion springs disposed so as to sandwich the interlocked rotating member which is typically ring-shaped.
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Citations
18 Claims
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1. A lock device for securing at an arbitrary revolution angle a supported body revolvably supported by a support, comprising:
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a revolution shaft; a torsion spring into which said revolution shaft is inserted in an intimately contacting state, said torsion spring having a free end side and a fixed end, a holding member for attachment to the support or supported body so as to hold said revolution shaft rotatably and having an engaging part engaged with the fixed end of said torsion spring; a stopper member secured to said revolution shaft the free end side of said torsion spring for preventing the fixed end of said torsion spring from coming off of said engaging part; and an interlocked rotating member disposed rotatably on said revolution shaft between said stopper member and the free end of said torsion spring so as to abut to and rotate together with the free end of the torsion spring when the supported body is revolved in a reverse direction relative to the winding direction of said torsion spring. - View Dependent Claims (2)
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3. A lock device for securing at an arbitrary revolution angle a supported body revolvably supported by a support, comprising:
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a revolution shaft; two torsion springs into which said revolution shaft is inserted in an intimately contacting state, said two torsion springs each having a fixed end and a free end and having mutually reverse winding directions with respect to their mutually opposite respective elongation directions from each fixed end to the free end; a pair of holding members for attachment to the support or supported body so as to hold said revolution shaft rotatably and respectively having engaging parts engaged with the respective fixed ends of said two torsion springs; and an interlocked rotating member disposed rotatably on said revolution shaft between the fixed ends of said two torsion springs so as to abut to and rotate together with the free ends of the two torsion springs when the supported body is revolved in a reverse direction relative to the winding direction of said torsion springs. - View Dependent Claims (4)
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5. A lock device for securing at an arbitrary revolution angle a supported body revolvably supported by a support, comprising:
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a revolution shaft; two torsion springs into which said revolution shaft is inserted in an intimately contacting state, said two torsion springs each having a fixed end and a free end and having mutually identical winding directions with respect to their mutually opposite respective elongation directions from each fixed end to the free end; a pair of holding members for attachment to the support or supported body so as to hold said revolution shaft rotatably and respectively having engaging parts engaged with the respective fixed ends of said two torsion springs; and an interlocked rotating member disposed rotatably on said revolution shaft between the fixed ends of said two torsion springs so as to abut to and rotate together with the free end of one of said two torsion springs when the supported body is revolved in a reverse direction relative to the winding direction of said one of said two torsion springs. - View Dependent Claims (6)
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7. A display apparatus, comprising:
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(A) a display panel; (B) a support for supporting said display panel; and (C) a lock device including; a revolution shaft; a torsion spring into which said revolution shaft is inserted in an intimately contacting state, said torsion spring having a free end side and a fixed end, a holding member attached to said support or said display panel so as to hold said revolution shaft rotatably and having an engaging part engaged with the fixed end of said torsion spring; a stopper member secured to said revolution shaft at the free end side of said torsion spring for preventing the fixed end of said torsion spring from coming off of said engaging part; and an interlocked rotating member disposed rotatably on said revolution shaft between said stopper member and the free end of said torsion spring so as to abut to and rotate together with the free end of said torsion spring when said display panel is revolved in a reverse direction relative to the winding direction of said torsion spring. - View Dependent Claims (8)
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9. A liquid crystal apparatus, comprising:
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(A) a liquid crystal panel; (B) a support for supporting said display panel revolvably; and (C) a lock device including; a revolution shaft; a torsion spring into which said revolution shaft is inserted in an intimately contacting state, said torsion spring having a free end side and a fixed end, a holding member attached to said support or said liquid crystal panel so as to hold said revolution shaft rotatably and having an engaging part engaged with the fixed end of said torsion spring; a stopper member secured to said revolution shaft at the free end side of said torsion spring for preventing the fixed end of said torsion spring from coming off of said engaging part; and an interlocked rotating member disposed rotatably on said revolution shaft between said stopper member and the free end of said torsion spring so as to abut to and rotate together with the free end of said torsion spring when said liquid crystal panel is revolved in a reverse direction relative to the winding direction of said torsion spring. - View Dependent Claims (10)
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11. A display apparatus, comprising:
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(A) a display panel; (B) a support for supporting said display panel revolvably; and (C) a lock device including; a revolution shaft; two torsion springs into which said revolution shaft is inserted in an intimately contacting state, said two torsion springs each having a fixed end and a free end and having mutually reverse winding directions with respect to their mutually opposite respective elongation directions from each fixed end to the free end; a pair of holding members attached to said support or display panel so as to hold said revolution shaft rotatably and respectively having engaging parts engaged with the respective fixed ends of said two torsion springs; and an interlocked rotating member disposed rotatably on said revolution shaft between the fixed ends of said two torsion springs so as to abut to and rotate together with the free ends of said two torsion springs when said display panel is revolved in a reverse direction relative to the winding direction of said torsion springs. - View Dependent Claims (12)
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13. A liquid crystal apparatus, comprising:
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(A) a liquid crystal panel; (B) a support for supporting said liquid crystal panel revolvably; and (C) a lock device including; a revolution shaft; two torsion springs into which said revolution shaft is inserted in an intimately contacting state, said two torsion springs each having a fixed end and a free end and having mutually reverse winding directions with respect to their mutually opposite respective elongation directions from each fixed end to the free end; a pair of holding members attached to said support or said liquid crystal panel so as to hold said revolution shaft rotatably and respectively having engaging parts engaged with the respective fixed ends of said two torsion springs; and an interlocked rotating member disposed rotatably on said revolution shaft between the fixed ends of said two torsion springs so as to abut to and rotate together with the free ends of said two torsion springs when said liquid crystal panel is revolved in a reverse direction relative to the winding direction of said torsion springs. - View Dependent Claims (14)
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15. A display apparatus, comprising:
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(A) a display panel; (B) a support for supporting said display panel revolvably; and (C) a lock device including; a revolution shaft; two torsion springs into which said revolution shaft is inserted in an intimately contacting state, said two torsion springs each having a fixed end and a free end and having mutually identical winding directions with respect to their mutually opposite respective elongation directions from each fixed end to the free end; a pair of holding members attached to said support or said display panel so as to hold said revolution shaft rotatably and respectively having engaging parts engaged with the respective fixed ends of said two torsion springs; and an interlocked rotating member disposed rotatably on said revolution shaft between the fixed ends of said two torsion springs so as to abut to and rotate together with the free ends of one of said two torsion springs when said display panel is revolved in a reverse direction relative to the winding direction of said one of said two torsion springs. - View Dependent Claims (16)
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17. A liquid crystal apparatus, comprising:
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(A) a liquid crystal panel; (B) a support for supporting said liquid crystal panel revolvably; and (C) a lock device including; a revolution shaft; two torsion springs into which said revolution shaft is inserted in an intimately contacting state, said two torsion springs each having a fixed end and a free end and having mutually identical winding directions with respect to their mutually opposite respective elongation directions from each fixed end to the free end; a pair of holding members attached to said support or said liquid crystal panel so as to hold said revolution shaft rotatably and respectively having engaging parts engaged with the respective fixed ends of said two torsion springs; and an interlocked rotating member disposed rotatably on said revolution shaft between the fixed ends of said two torsion springs so as to abut to and rotate together with the free ends one of said two torsion springs when said liquid crystal panel is revolved in a reverse direction relative to the winding direction of said one of said two torsion springs. - View Dependent Claims (18)
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Specification