Source: http://www.google.com/patents/US20050028281?dq=inventor:%22Arthur+R.+Hair%22
Timestamp: 2017-11-19 11:01:24
Document Index: 687926457

Matched Legal Cases: ['art.\n8', 'art.\n12', 'arts 88', 'art 88', 'art 88', 'arts 24', 'art 24', 'art 24', 'art 24', 'art 24', 'art 24', 'arts 88', 'arts 24', 'arts 88', 'arts 88', 'arts 88', 'arts 84', 'arts 24', 'arts 24', 'art 24', 'art 24', 'art 24', 'arts 24', 'art 24', 'arts 24', 'arts 24', 'art 49', 'art 49', 'art 42', 'art 42', 'arts 42', 'arts 49', 'arts 42', 'art 49', 'art 48', 'art 48', 'art 54', 'art 55', 'arts 25', 'arts 26', 'arts 25', 'arts 25', 'art 53', 'arts 25', 'arts 28', 'art 53', 'arts 28', 'arts 25', 'arts 26', 'art 104', 'art 104', 'arts 104', 'arts 88', 'arts 88', 'arts 88', 'arts 88', 'arts 24', 'arts 24']

Patent US20050028281 - Rising-type bed apparatus and mattress - Google Patents
A bedplate is disposed in a bed frame. The bedplate includes a fixed bed part, right leg-raising parts and left leg-raising parts. The fixed bed parts are secured to the bed frame. The right leg-raising parts are rotatably coupled, at one end, to one end of the fixed bed part. The left leg-raising parts...http://www.google.com/patents/US20050028281?utm_source=gb-gplus-sharePatent US20050028281 - Rising-type bed apparatus and mattress
Publication number US20050028281 A1
Application number US 10/944,637
Also published as DE10392514B4, DE10392514T5, US7017210, WO2004024051A1
Publication number 10944637, 944637, US 2005/0028281 A1, US 2005/028281 A1, US 20050028281 A1, US 20050028281A1, US 2005028281 A1, US 2005028281A1, US-A1-20050028281, US-A1-2005028281, US2005/0028281A1, US2005/028281A1, US20050028281 A1, US20050028281A1, US2005028281 A1, US2005028281A1
Inventors Kei Ooyama, Takashi Hasegawa
Patent Citations (26), Referenced by (18), Classifications (6), Legal Events (4)
Rising-type bed apparatus and mattress
US 20050028281 A1
2. The rising-type bed apparatus according to claim 1, wherein a mattress is mounted on the bedplate, and a part of this mattress, which corresponds to the pair of leg-raising parts, is divided at a midpoint into two parts which are spaced in a transverse direction of the bedplate.
3. The rising-type bed apparatus according to claim 1, wherein the driving means comprises:
a rotated/driven driving shaft;
a pair of leg-raising arms whose base ends are disposed on parts of the driving shaft corresponding to the pair of leg-raising parts so as to be rotatable and slidable in an axial direction; and
a pair of interlocking members whose base ends are fixed in the vicinity of each leg-raising arm of the driving shaft and which interlock the leg-raising arm with rotation of the driving shaft in a state in which the leg-raising arms are disengageably engaged, to raise the leg-raising part by the leg-raising arms.
4. The rising-type bed apparatus according to claim 1, wherein the pair of right/left leg-raising parts comprise a first leg-raising part whose one end is rotatably coupled to the fixed bed part and which is driven in a rising direction by the driving means, and a second leg-raising part whose one end is rotatably coupled to the other end of the first leg-raising part, and the second leg-raising part is held at a predetermined angle with respect to the first leg-raising part by a holding mechanism, when the first leg-raising part is driven in the rising direction by the driving means.
a support rod whose one end is rotatably coupled to the lower surface of the second leg-raising part and whose other end is provided with an engagement member and which selectively engages this engagement member with any of the plurality of holding grooves to hold the second leg-raising part at a predetermined angle with respect to the first leg-raising part in response to rotating/rising of the first leg-raising part.
a first holding groove to hold the second leg-raising part in an inclined state in which not one end of the second leg-raising part coupled to the first leg-raising part but a free end of the second leg-raising part is positioned below a horizontal state; and
a second holding groove which holds the second leg-raising part substantially horizontally.
7. The rising-type bed apparatus according to claim 6, characterized by comprising a third holding groove to hold the second leg-raising part in an inclined state in which a free end of the second leg-raising part is higher than one end coupled to the first leg-raising part.
8. The rising-type bed apparatus according to claim 6, wherein the holding member has an inclined surface to guide the engagement member, allowing the engagement member to slide in a direction to come from the first holding groove, when the second leg-raising part is rotated, together with the support rod, to a substantially horizontal position, and causing the engagement member disengaged from the holding groove to engage with the first holding groove when the second leg-raising part is rotated from the substantially horizontal position to a raised position as the first leg-raising part and is raised.
9. The rising-type bed apparatus according to claim 1, comprising:
a back-raising part including a back middle part and a pair of back parts rotatably coupled to this back middle part on opposite sides in a transverse direction, and including the back middle part rotatably coupled to the fixed bed part; and
a back raising mechanism which is disposed on a lower surface of this back-raising part and inclines one or both of a pair of back parts of the back-raising part by a predetermined angle with respect to the back middle part, when the back-raising part is driven in a raising direction by the driving means.
10. The rising-type bed apparatus according to claim 9, wherein the back raising mechanism comprises:
a back-raising arm driven to rise and lie;
a back raising roller, disposed on this back-raising arm, to drive the back middle part of the back-raising part to rise and lie; and
a push-up roller, disposed on the back-raising arm, to selectively incline one or both of a pair of back parts of the back-raising part by a predetermined angle with respect to the back middle part at a raising time.
11. A rising-type bed apparatus comprising:
a bedplate including a fixed bed part fixed to the bed frame and a back-raising part rotatably coupled to the fixed bed part, this back-raising part being formed by a back middle part and a pair of back parts rotatably coupled to this back middle part on opposite sides in a transverse direction; and
a back raising mechanism which is disposed on an lower surface of the back-raising part and which drives the back-raising part to rise and lie and which inclines one or both of a pair of back parts of the back-raising part by a predetermined angle with respect to the back middle part.
12. The rising-type bed apparatus according to claim 11, wherein the back raising mechanism comprises:
a back raising roller which is disposed on this back-raising arm and which drives the back middle part of the back-raising part to rise and lie; and
a push-up roller which is disposed on the back-raising arm and which selectively inclines one or both of a pair of back parts of the back-raising part by a predetermined angle with respect to the back middle part at a raising time.
13. The rising-type bed apparatus according to claim 12, wherein a protrusion is disposed on the lower surface of the back part, and the push-up roller roll-contacts the protrusion to incline the back part by a predetermined angle with respect to the back middle part, when the back-raising arm rises.
14. The rising-type bed apparatus according to claim 12, wherein the push-up roller is retractably disposed into a non-contact state from a contact state with respect to the protrusion.
15. The rising-type bed apparatus according to claim 12, wherein the push-up roller is rotatably disposed on a pivotable shaft pivotably disposed on the back-raising arm, and the push-up roller is constituted to be incapable of contacting the protrusion by pivoting the pivotable shaft, when a side part of the back-raising part is not tilted.
16. A mattress for use in a rising-type bed apparatus comprising right and left leg-raising parts which can be driven in a rising direction, one end part of this mattress being divided into two right/left parts at a midpoint in a transverse direction thereof in accordance with the pair of right and left leg-raising parts.
This is a Continuation Application of PCT Application No. PCT/JP03/09206, filed Jul. 18, 2003, which was published under PCT Article 21 (2) in Japanese.
As long as the back-raising arm 61 remains horizontal, the push-up rollers 64 on the outer surface of the back-raising arms 61 contact the lower ends of the inclined parts 88 a of the protrusions 88, as is indicated by the solid line in FIG. 14A. When the back-raising arms 61 rotate, assuming a rising position, the arm presses the inclined part 88 a, while moving to the flat part 88 b.
The protrusions 88 are made of synthetic resin and integrally molded with the back parts 24 b of the back-raising part 24. Instead of the protrusions 88, strip-shaped member, bent in the form of letter L, may be secured to the lower surface of the back part 24 b.
Substantially U-shaped guide rails 91 are arranged along the longitudinal direction, on those opposite parts of the lower surface of the back middle part 24 a of the back-raising part 24 which are spaced apart in the transverse direction. The back raising rollers 63 disposed on the inner surface of the back-raising arm 61 are set in rolling engagement with this guide rail 91.
Thus, when the first driving shaft 35 is rotated or driven by the first driving source 33 of the bed part driving mechanism 31, rotating the back-raising part 24 in the rising direction, the push-up rollers 64 on the back-raising arms 61 come into rolling-contact with the inclined parts 88 a of the protrusions 88 of the back parts 24 b. Hence, the rollers 64 moves move from the inclined parts 88 a to the flat parts 88 b.
The inclined parts 88 a have their surfaces gradually rising from the lower surfaces of side parts 84 b. Therefore, the push-up rollers 64 push up the back parts 24 b when the back-raising arms 61 rotate. As a result, the back parts 24 b are bent toward the upper surface of the bedplate 21, around the back middle part 24 a that acts as the fulcrum.
Moreover, when the back-raising arms 75 are rotated in the rising direction when necessary, the back raising rollers 63 push up the back middle part 24 a of the back-raising part 24. In addition, the push-up rollers 64 bent the protrusions 88, ultimately bending the back parts 24 b.
Thus, the back-raising arms 61 can raise the back-raising part 24, together with the back parts 24 b. Since no link mechanism exclusively for use in bending the back parts 24 b is required, the bed apparatus is simple in structure, having less components than otherwise.
Note that a pair of leg-raising arms 43 is engaged with a holding member (not shown) that is disposed on the bed frame 6. The holding member prevents the arms 43 from rotating downwards, maintaining the arms 43 in a substantially position as shown in FIG. 8A.
As FIG. 7 shows, sleeves 49 (only one is shown) made of resin are attached to the opposite end parts of the second driving shaft 36. The cylindrical bodies 42 fixed to the proximal ends of the leg-raising arms 43 are slidably attached around the sleeves 49. The sleeve 49 has a receiving part 49 a. The receiving part 49 a protrudes from the outer peripheral surface and can be elastically displaced inwards in the diametric direction. The sleeves 42 has first convex part 42 a and second convex part 42 b. The convex parts 42 a and 42 b are elastic and removably attached to the receiving parts 49 a.
When the cylindrical body 42 is slid along the sleeve 49, the first and second convex parts 42 a and 42 b are removed from or attached to the receiving part 49 a. Accordingly, the cylindrical body 42 is elastically held with respect to the sleeve 49, unable to slide, in a position where the engagement concave part 48 of the leg-raising arm 43 is engaged with the engagement shaft 47 of the interlocking member 46 as shown in FIGS. 7 and 8B. The cylindrical body 42 is elastically held also in a position where the engagement concave part 48 is disengaged from the engagement shaft 47 as shown in FIG. 8A.
The second holding groove 54 is defined by a hook part 54 a and an inclined surface 54 b, in the same manner as the first holding groove 53. The third holding groove 55 is defined by a hook part 55 a.
As FIG. 9A shows, the first left and right leg-raising parts 25 are 27 are driven in the rising direction, with the support shaft 57 engaged with the first holding groove 53 of the holding member 52. The second left and right leg-raising parts 26 and 28, which are interlocked with the first left and right leg-raising parts 25 and 27, rise at such an angle that the other end is positioned below one end that is coupled to the first left and right leg-raising parts 25 and 27.
Note that the support shaft 57 disengages from the hook part 53 a of the first holding groove 53 when the leg-raising parts 25 to 28 are rotated from the position shown in FIG. 9A to a substantially horizontal position shown in FIG. 10A. Thus, the support shaft 57 rises on the inclined surface 53 b to the upper end of the surface 53 a.
The second left and right leg-raising parts 28 are driven in the rising direction after the support shaft 57 has risen to the upper end of the inclined surface 53 b. Then, the support shaft 57 moves downwards along the inclined surface 53 b and come into engagement with the hook part 53 a of the first holding groove 53. Therefore, the second left and right leg-raising parts 28 can be held at an angle shown in FIG. 9A.
The mattress 101 shown in FIGS. 11A and 11B are mounted on the upper surface of the bedplate 21. The mattress 101 comprises a body (not shown) of elastic material, such as urethane foam, and a bag-shaped exterior fabric 102 covering the body. One end part of the mattress 101, which corresponds to the first left and right leg-raising parts 25 and 27 and second left and right leg-raising parts 26 and 28, is divided, along a cutting line 103, into a first or right part 104 a and a second or left part 104 b.
FIG. 12 shows a modification of a mattress 61. The exterior fabric 102 of the mattress 101 is formed by cloth having elasticity. Therefore, for first (right) and second (left) parts 104 a and 104 b, only urethane foam stored in the exterior fabric 102 is cut, and the exterior fabric 102 is not cut.
Accordingly, the push-up rollers 64 contacts and presses the inclined parts 88 a of the protrusions 88 when the back-raising arms 61 are driven in the rising direction. The flat parts 88 b is therefore shifted from the inclined parts 88 a.
When the push-up rollers 64 presses the flat parts 88 b of the protrusions 88, the back parts 24 b are inclined. Therefore, the user can be inhibited from falling sideways even if the user does not have any physical power for keeping his or her upper half body in a raised position. This is because the inclined back parts 24 b holds the upper half part of the user who is lying on his back on the mattress 101.
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U.S. Classification 5/618, 5/619
International Classification A61G7/015
Cooperative Classification Y10S5/942, A61G7/015
European Classification A61G7/015
Owner name: FRANCE BED CO., LTD., JAPAN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OOYAMA, KEI;HASEGAWA, TAKASHI;REEL/FRAME:015812/0334
Sep 6, 2017 MAFP