Integrated siderail and accessory rail for a bed

Abstract: A rail apparatus (20) is configured to be mounted to a frame (14) of a bed (10). The apparatus (20) includes a siderail (36), a support (38) having a first end (46) pivotably coupled to the siderail (36) and a second end, and a bottom mounting (22, 42) pivotably coupled to the second end of the support (38). The bottom mounting (22, 42) includes at least one mounting bracket (24) for coupling the bottom mounting (22, 42) to the frame (14) of the bed (10), and an accessory rail (26) configured to permit mounting of accessory items (60) on the rail apparatus (20).

Description: Background and Summary of the Invention The present invention relates to a rail apparatus according to the preamble of claim 1, which can be used in a hospital room, nursing home, or other medical facility. The rail apparatus is configured to be mounted to a frame of a bed to permit attachment of desired accessory items to the accessory rail. It is known to use accessory rails mounted on a wall of a hospital room or to a frame of a hospital bed for supporting various accessory items. Accessory items are typically mounted to these accessory rails using known clamps. In addition, items can be hung from the accessory rails. Problems are associated with the use of such conventional accessory rails, especially when the rails are mounted on a hospital bed. First, the accessory rails may block the use of other items, such as siderails or barriers used to help keep a patient in the bed. Second, such known accessory rails attached to the bed frame can be difficult to clean. Fasteners that are used to secure the accessory rails to the bed provide areas that can collect dirt or other contaminants. Therefore, it is desirable to provide an accessory rail on the bed which does not interfere with any moving components of the bed or with operation of the siderail of the bed. In addition, the accessory rail should be easy to clean for use in a medical environment. US Patent No. 5522100 describes a mobile bed with a frame including side members to which a side rail and a transfer board mechanism are mounted. The transfer board mechanism can be replaced by an accessory rail. GB-A-1094692 discloses a rail apparatus as defined in the preamble of claim 1. The present invention provides a rail apparatus configured to be mounted to a frame of a bed as a unit, the apparatus comprising an elongated mounting rail, at least one mounting bracket for coupling the mounting rail to the frame, an accessory rail coupled to the mounting rail and being configured to receive accessory items, and a siderail pivotally coupled between and supported by the mounting rail and the accessory rail. The present invention provides an accessory rail integral with the siderail barrier of the bed. The improved structure of the present invention permits the use of any length siderail with an accessory rail. The accessory rail is preferably incorporated into a bottom or lower weldment of the siderail assembly and can also act as a perimeter bumper and provide a near zero transfer gap to facilitate moving a patient from the bed. Since the accessory rail of the present invention is part of the siderail barrier assembly, it does not interfere with operation of any moving components of the bed or siderail. The entire accessory rail is preferably coated with a nylon based finish to provide a scratch resistant outer surface. The color of the finish can be selected to match the bed frame color so that the accessory rail is aesthetically appealing. In the illustrated embodiment, the siderail has a support comprising a plurality of tubes. Each tube has a first end coupled to the siderail and a second end coupled between the mounting rail and the accessory rail. In the illustrated embodiment, the accessory rail has a length which is longer than a length of the top rail of the siderail so that accessory rail extends beyond the siderail to facilitate mounting of accessory items to the accessory rail. The accessory rail extends beyond at least a first end of the siderail. Also in the illustrated embodiment, the accessory rail extends along substantially a full length of a side of the bed. The accessory rail includes first and second ends which are curved inwardly toward the mounting rail. The first and second curved ends of the accessory rail are welded or otherwise fastened to the mounting rail in the illustrated embodiment. The illustrated accessory rail has a rectangular cross sectional shape and is covered with a scratch resistant coating. A drain bag holder is coupled to the mounting bracket. In the illustrated embodiment, the first end each tube is pivotably coupled to the side rail and the second end of each tube is pivotably coupled between the mounting rail and the accessory rail so that the siderail is pivotable between an upright barrier position and a collapsed storage position. The second end of each tube is coupled to a bushing. Each bushing is pivotably coupled between the mounting rail and the accessory rail by a fastener. Additional objects, features, and advantages of the invention will become apparent to those skilled in the art upon consideration of the following detailed description of the preferred embodiment exemplifying the best mode of carrying out the invention as presently perceived. Brief Description of the Drawings Fig. 1 is a perspective view illustrating an integrated siderail and accessory rail assembly mounted on each side of a stretcher or bed; Fig. 2 is a perspective view illustrating details of the integrated siderail and accessory rail assembly of the present invention; Fig. 3 is a sectional view taken along lines 3-3 of Fig. 1 illustrating mounting of the siderail and accessory rail assembly to a frame member of the bed; and Fig. 4 is a sectional view taken along lines 4-4 of Fig. 1 illustrating connection of an accessory item to the accessory rail using a suitable clamp. Detailed Description of the Drawings Referring now to the drawings, Fig. 1 illustrates a bed 10 having a base 12 and a frame 14 coupled to the base 12. A deck 16 is coupled to the frame 14, and a patient support surface 18 is located on the deck 16. Although a stretcher-type bed 10 is illustrated in Fig. 1, it is understood that any type of bed can be used in accordance with the present invention. The deck 16 may be an articulating deck which moves relative to the frame 14 in a conventional manner. An integrated rail assembly 20 of the present invention is mounted to opposite sides of the bed 10 to extend parallel to a longitudinal axis 21 of the bed 10. The rail assembly 20 is best illustrated in Fig. 2. The rail assembly 20 includes a straight mounting rail 22 having a length substantially equal to a length of the bed 10. Spaced apart mounting brackets 24 are coupled to the mounting rail 22 for securing the rail assembly 20 to the bed 10 as discussed in detail below. Rail assembly 20 further includes an outer accessory rail 26 for coupling various accessory items to the rail assembly 20 as discussed below. Illustratively, rails 22 and 26 are made from an extruded aluminum material. Preferably, accessory rail 26 has inwardly bent or curved end portions 28 which are welded to opposite ends of the mounting rail 22 at locations 30. Therefore, a space or gap 32 is provided between the mounting rail 22 and the accessory rail 26. A siderail assembly 34 for the bed 10 is coupled between the mounting rail 22 and the accessory rail 26. Siderail assembly 34 includes a top rail 36 pivotably coupled to top ends of siderail tubes 38 by pivot connections 40. Opposite, bottom ends of the tubes 38 are pivotably coupled between the mounting rail 22 and the accessory rail 26 by lower pivot connections 42 as discussed below. A latch plate 44 is coupled between an end tube 38 and the mounting rail 22 and accessory rail 26 to hold the siderail assembly 34 in an upright position illustrated in Fig. 2. U-shaped drain bag holders 46 are coupled to opposite ends of mounting rail 22. A stop 45 is coupled to one tube 38 for engaging frame 14 when siderail 20 is in the upwardly pivoted in use position of Fig. 2. Preferably, the entire rail assembly 20 is coated with a Nylon-based finish to provide a scratch resistant outer surface. After the mounting rail 22 and the accessory rail 26 are welded together, the rails 22 and 26 are preferably dipped into a bath to provide the Nylon based finish. It is understood that another type of scratch resistant surface can be used, if desired. The color of the finish can be selected to match the color of the base 12 of frame 14 of bed 10. In addition, the accessory rail may be formed from stainless steel, or made from an injection molded plastic material or other suitable material. Details of the connection of the rail assembly 20 to the bed 10 are illustrated in Fig. 3. The mounting brackets 24 are illustratively U-shaped to fit over a frame member 48 of bed 10. Mounting brackets 24 are secured to frame member 48 by suitable fasteners 50. Frame member 48 may be a swing arm pivotably coupled to the bed 10, if desired. Other suitable fasteners such as a clamping device may be used instead of brackets 24. Also as illustrated in Fig. 3, each tube 38 of siderail 34 extends into a rotatable bushing 52 which is connected between mounting rail 22 and accessory rail 26 by a suitable fastener 54. Wave washers 56 are located on opposite sides of bushing 52. A spacer block 58 is located between bushing 52 and accessory rail 26. Therefore, siderail 34 can pivot from an upwardly pivoted barrier position shown on one side of the bed 10 in Fig. 1 and in Fig. 2 to a downwardly pivoted, storage position shown an opposite side of the bed 10 in Fig. 1. After the rail assembly 20 is coupled to the bed, the siderails 34 can function in a conventional manner. The accessory rail 26 permits accessory items such as item 60 in Fig. 1 to be mounted to the accessory rail 26. Illustratively, a clamp 62 is used to secure the accessory item 60 to the accessory rail 26. Clamp 62 includes a C-shaped body 64 for receiving a support post 66. A threaded actuator 68 is rotatable to secure the clamp 62 to the accessory rail 26. Illustratively, the accessory rail 26 may be a 10mm x 25mm rail to accept standard European clamp sizes. It is understood that any type of accessory item can be coupled to the accessory rail with a similar clamp. It is also understood that accessory items may include hooks or other means for coupling the items directly to the accessory rail 26 without the need for clamp 62. Since accessory rail 26 is integral with siderail 34, the accessory rail 26 does not interfere with any moving components of the bed 10 or the siderail 34. The integral rail assembly 20 of the present invention therefore permits the accessory rail 26 to be used with a any length siderail 34. As shown in Fig. 1, the accessory rail 26 extends substantially the entire length of bed 10. Therefore, the accessory rail 26 provides a perimeter bumper for the sides of bed 10. In addition, the accessory rail 26 does not require any exposed screws or fasteners for mounting. This improves cleanability of the accessory rail 26. Other types of support mechanisms for the siderail or other pivoting arrangements to secure the siderail to a bottom mounting including the mounting rail and accessory rail are for example, disclosed in U.S. Patent No. 2,722,017 or 5,129,117.

Claims: A rail apparatus (20) configured to be mounted to a frame of a bed (10) as a unit, the apparatus comprising a siderail (34), an elongated mounting rail (22), and at least one mounting bracket (24) for coupling the mounting rail (22) to the frame, characterised by an accessory rail (26) coupled to the mounting rail (22) and being configured to receive accessory items, and the siderail (34) being pivotally coupled between and supported by the mounting rail (22) and the accessory rail (26). The apparatus of claim 1 further comprising a support (38) having a first end pivotally coupled to the siderail (34, 36) and a second end, a bottom mounting (22, 24) pivotally coupled to the second end of the support (38), the bottom mounting including the mounting rail (22) and the at least one mounting bracket (24). The apparatus of claim 2 wherein the support includes a plurality of tubes (38), each tube having a first end pivotably coupled to the siderail (34, 36) and a second end pivotably coupled to the bottom mounting (22, 24) so that the siderail is pivotable between an upright barrier position and a collapsed storage position. The apparatus of claim 3 wherein the second end of each tube (38) is coupled to a bushing (52), each bushing (52) being pivotably coupled between the mounting rail (22) and the accessory rail (26) by a fastener (54). The apparatus of any preceding claim wherein the accessory rail is coupled to the mounting rail at their respective ends. The apparatus of claim 5 wherein the accessory rail (26) includes first and second ends (28) which are curved inwardly toward the mounting rail (22). The apparatus of claim 6 wherein the first and second curved ends (28) of the accessory rail (26) are welded to the mounting rail (22). The apparatus of any preceding claim wherein the accessory rail (26) extends along substantially a full length of a side of the bed (10) to provide a perimeter bumper for the bed. The apparatus of any preceding claim wherein the accessory rail (26) has a length which is longer than a length of the siderail (34) so that accessory rail (26) extends beyond the siderail (34) to facilitate mounting of accessory items to the accessory rail. The apparatus of any preceding claim wherein the accessory rail (26) extends beyond at least a first end of the siderail (34). The apparatus of any preceding claim wherein the accessory rail (26) has a rectangular cross sectional shape. The apparatus of any preceding claim wherein the accessory rail (26) is covered with a scratch resistant coating. The apparatus of any preceding claim further comprising a drain bag holder (46) coupled to the mounting bracket (24).

Inventors: CORBIN SCOTT M, HOWELL CHARLES A, MILLER JOHN D, MOSTER JEFFREY A, WALKE JAMES L, WEBSTER THOMAS MATTHEW, WILSON ROBERT W, CORBIN, SCOTT M., HOWELL, CHARLES A., MILLER, JOHN D., MOSTER, JEFFREY A., WALKE, JAMES L., WEBSTER, THOMAS MATTHEW, WILSON, ROBERT W.
Applicants: HILL ROM SERVICES INC, HILL-ROM SERVICES, INC.
Application year: 1997
Main classification: A61G7
IPC codes: A61G7, A47C21