Patent US3832742A successfully refreshed from Google Patents.
US3832742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
End support for anterior bed frame
Assignee: Stryker Corp
•
Filing: 1973-02-26
•
Granted: 1974-09-03
•
Expires: 1993-02-26
Abstract
Abstract An end support for the anterior frame of a rotatable hospital bed having opposed, relatively movable anterior and posterior patient supporting frames. The end support has a bar which extends between spaced, parallel and generally upright side rings of the bed. The ends of the end support bar are secured to the side rings by lock units. When the lock units are in their unlocked condition, they can slide along the corresponding side rings for adjusting the distance between the end supports, hence, the anterior frame and the posterior frame of the bed. The lock unit includes pin means engageable with the side rings and resiliently urged to remain in any of several selected positions therealong. The end support bar is mounted on the lock units for limited pivotal movement around an axis parallel with the rotational axis of the bed. The end support bar is resiliently biased toward one pivotal limiting position wherein said end support bar overlaps the end of said anterior frame. In a modified embodiment, the end support bar is not resiliently held but is pivotable on the lock unit through an extended angular range, between a limit position determined by an adjustment screw wherein the end support is engageable with the anterior frame, and a second limit position thereabove and wherein a support lock pin automatically locks the end support bar against pivotal movement in an upwardly extending intermediate position.
Inventors
- 👤 H Stryker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:01
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/001
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
187 words
An anterior frame end support apparatus for a hospital bed of the type having a coaxial pair of upstanding, spaced side rings rotatable on a supporting base and normally spaced, substantially diametrally extending posterior and anterior frames between said rings for supporting a patient to allow rotational orientation of the patient about an axis transverse to his body, comprising in combination: an elongate support extending between said rings and having ends positionable adjacent corresponding ones of said rings and a central portion securable to the anterior frame adjacent one end thereof; a lock unit slidably supported on each of said rings and connected to a corresponding one of said support ends for adjustably mounting said support on said rings; means defining a plurality of circumferentially aligned openings circumferentially spaced along said rings; manually actuable plunger means on each of said lock units normally engageable in said ring openings for positively locking said anterior frame support on said rings and releasable for allowing selected repositioning of said anterior frame support at a plurality of positions along said rings corresponding to the location of said openings in such rings.
Claim 2
Dependent Claim
187 words
An anterior frame end support apparatus for a hospital bed of the type having a coaxial pair of upstanding, spaced side rings rotatable on a supporting base and normally spaced, substantially diametrally extending posterior and anterior frames between said rings for supporting a patient to allow rotational orientation of the patient about an axis transverse to his body, comprising in combination: an elongate support extending between said rings and having ends positionable adjacent corresponding ones of said rings and a central portion securable to the anterior frame adjacent one end thereof; a lock unit slidably supported on each of said rings and connected to a corresponding one of said support ends for adjustably mounting said support on said rings; means defining a plurality of circumferentially aligned openings circumferentially spaced along said rings; manually actuable plunger means on each of said lock units normally engageable in said ring openings for positively locking said anterior frame support on said rings and releasable for allowing selected repositioning of said anterior frame support at a plurality of positions along said rings corresponding to the location of said openings in such rings.
Claim 3
Dependent Claim
124 words
The apparatus of claim 1 in which said lock unit includes a block having a first opening therethrough adjacent one end thereof, the axis of said opening lying substantially in the plane of the adjacent ring, said adjacent ring being slidably receivable through said first opening, means defining a second opening in said block adjacent the other end thereof and spaced from said first opening, the axis of said second opening being transverse to said plane of said adjacent ring, the adjacent end of said support being snugly but rotatably received in said second opening, means defining a third opening in said block communicating with said second opening, said plunger means comprising an elongate plunger slidably supported on said block within said third opening.
Claim 4
Dependent Claim
132 words
The apparatus of claim 2 including an elongate sleeve extending through said first opening and means fixing said sleeve to said block, the sleeve being linear and of inside diameter exceeding the thickness of said ring sufficiently as to allow snug sliding reception of said ring therein, said ring engaging each end of said sleeve at a point on the side of said sleeve facing internally of said ring, plugs fixed inside said sleeve adjacent the ends oF said sleeve, said plugs being spaced on opposite sides of the plane of said ring and being located on the half of said sleeve furthest from the center of said ring, said ring slidably contacting each end of said sleeve at said point and said plugs for slidably supporting said block on said ring.
Claim 5
Dependent Claim
142 words
The apparatus of claim 2 in which said third opening extends longitudinally of said block, the axis of said third opening lying transverse to and intersecting the axes of said first and second openings, said plunger means including a casing snugly received in said third opening, said plunger being slidably received in said casing, an opening in said support end alignable with said third opening of said block and loosely receiving said casing therethrough for allowing limited pivotal movement of said support about the axis of said support end with respect to said block, said central portion of said support being radially offset from the axis of its ends and engageable with the adjacent end of said anterior frame, whereby pivotal movement of said support allows the anterior frame to be alternatively supported on said support central portion and to move therepast.
Claim 6
Dependent Claim
28 words
The apparatus of claim 4, including spring means on said block engageable with said support ends for shifting said central portion of said support away from said rings.
Claim 7
Dependent Claim
72 words
The apparatus of claim 5, in which said spring means comprises a leaf spring, said leaf spring having one end engaging said support end outside said block and an opposite end spaced from said support end and extending along said block, abutment means on said block engaging said other end of said spring and maintaining a bending force on said spring for resiliently and pivotally urging said support away from said rings.
Claim 8
Dependent Claim
194 words
The apparatus of claim 2, in which said third opening extends from said other end of said block through said second opening and into said first opening, said plunger means further including a casing snugly receivable within said third opening, said third opening having a shoulder intermediate said first and second openings and facing toward said second opening, said casing being axially fixed in said third opening in contact with said shoulder, a compression spring within said casing, said plunger being slidably located within said casing and compression spring and extending axially therebeyond, an enlarged head on one end of said plunger slidably located within the reduced diameter portion of said third opening defined by said shoulder and adjacent end of said casing, a sleeve in said first opening for slidably receiving the adjacent ring therethrough, a hole in said sleeve coaxial with the third opening for receiving said head therethrough, said head being receivable in a selected one of said openings in the adjacent ring when said selected opening is in alignment with said hole in said sleeve and said third opening for locking said block in fixed circumferential location on said ring.
Claim 9
Dependent Claim
94 words
The apparatus of claim 7, including overlapping means adjacent the outer end of said casing and extending radially inwardly thereof in radially overlapping relation with said compression spring, said overlapping means guiding said plunger, said head radially overlapping said compression spring so that movement of said head into said casing is resisted by compression of said compression spring, a knob on the end of said plunger opposite said head and extending out of said third opening for manual engagement to retract said plunger head into said casing and out of contact with said spring.
Claim 10
Dependent Claim
30 words
The apparatus of claim 1 including circumferential pivot limit means on at least one of said lock units for positively limiting pivotal movement of said support on said lock unit.
Claim 11
Dependent Claim
53 words
The apparatus of claim 9, in which said pivot limit means comprises a pivot lock pin on said one of said lock units positively engageable with an adjacent portion of said support for positively locking said support in a rest position pivotally remote from its normal position with engagement of said anterior frame.
Claim 12
Dependent Claim
69 words
The apparatus in claim 10, including means locating said pivot lock pin for axial movement on said one lock unit and so as to extend substantially upwardly therefrom and including means limiting axial movement of said pivot lock pin, said adjacent support portion having a hole therein for receiving the inner end of said pivot lock pin when aligned therewith and in response to gravitational attraction of said pin.
Claim 13
Dependent Claim
83 words
The apparatus of claim 9, in which said pivot limit means comprises first and second stop bars fixed to said one lock unit and spaced circumferentially with respect to the axis of the adjacent support end and a third stop bar fixed to said support end in longitudinally overlapping relation with said first and second stop bars, whereby interference between said third top bar and said first and second stop bars establishes first and second circumferentially spaced pivot limiting positions of said support.
Claim 14
Dependent Claim
38 words
The apparatus of claim 12, including an adjustment screw on said third stop bar engageable with said first stop bar to adjustably establish one of said circumferential limiting positions wherein said support is securable to said anterior frame.
Claim 15
Dependent Claim
78 words
The apparatus of claim 1, in which each of said lock units comprises a tube closely conformed to and slidably surrounding a corresponding one of said rings, a cross tube affixed to said tube and extending transversely thereof for telescopically receiving therein the adjacent end of said support, a tubular boss extending from said tube adjacent said cross tube in substantially transverse relation to said tube and cross tube, said plunger means being carried by said tubular boss.
Claim 16
Dependent Claim
35 words
The apparatus of claim 14, including a stop bar on said support engageable with an opposed end of said cross tube for limiting the extent of penetration of said support end in said cross tube.
Claim 17
Dependent Claim
84 words
The apparatus of claim 14, including coacting stop bars on said cross tube and the adjacent portion of said support for interacting to define positive limits to pivotal movement of said support with respect to said lock unit, means for adjusting at least one of said limits and gravitationally actuated limit means responsive to assumption of an intermediate pivotal position of said support with respect to one of said lock units for positively preventing pivotal movement of said support out of such intermediate position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |