JP4780573B2 - Back-lifting side rail - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a back-raising type side rail that can be used for a stretcher or a bed having a hoisting mechanism on a floor.
[0002]
[Prior art]
Conventionally, there are various types of side rails provided in a bed or the like (a hospital bed, a home bed, a stretcher, etc.). For example, what is called a plug-in type is configured to be detachable from a plug-in hole formed on a side frame such as a bed. For this reason, the structure is simple and there is no problem in strength. On the other hand, there is a retractable side rail that can be lifted and fixed so as to cover the bottom side surface only when necessary. According to this side rail, the trouble of removing and attaching each time like a plug-in type is saved, and it is easy to use. Further, a bottom-mounted side rail that is directly fixed to the bottom side surface has been proposed. According to such a side rail, when applied to a bed or the like equipped with a bottom raising / lowering mechanism (gatch mechanism), the side rail always follows the movement of the bottom even when a gatch operation is performed. A safety-friendly function that can be supported even if it falls to the side is provided.
[0003]
However, in the bottom-mounted side rail, if the side rail is completely fixed to the bottom, when the user gets on and off the bed, or when performing a treatment, the side rail becomes an obstacle, and eventually The side rail must be removable. Therefore, it takes time and effort to attach and detach, and it is necessary to pay attention to storage when it is removed. Furthermore, since individual side rails are provided on the back side and the leg side, there is a disadvantage that a gap is formed between the side rails.
[0004]
[Problems to be solved by the invention]
The present invention has been proposed from the background as described above, and has a structure in which an integral bendable side rail is directly attached to a bottom that can be raised and lowered, and is rotated to the bottom lower surface when not necessary. While being stored, it can be rotated from the bottom underneath when necessary, so that it can be held in an upright position, eliminating the hassle of attaching and detaching, and improving operability and usability. Alternatively, it is an object of the present invention to provide a back-raising type side rail in a stretcher or the like.
[0005]
[Means for Solving the Problems]
The present invention provides a bed or stretcher or the like having a relief mechanism in the bottom, the side rail frame each pivotally attached so as to be rotatable to the bottom side of each bending, bendable these side rails frame and thereby configured as an integral side rails by linking with stretchable core material, the said side rails includes a stopper mechanism for holding the upright position, the bottom when the side rail is in the upright position state while preventing the falling from the side surface, wherein the bottom is when standing by undulating mechanism, with also upright side rail frame corresponding to the bottom of standing, said bottom said core is an arc having a suitable curvature is bent even prevents falling from the bottom side surface, and if necessary, the bottom side by releasing the locking mechanism The most important feature that is configured to be rotatable to Luo downward.
[0006]
According to the present invention, the side rail integrally formed on the side part of the bed or the stretcher is attached, so that it is possible to prevent falling from the side. In addition, side rail frames are attached to each bottom, and the side rail frames are not only raised at the same time as the bottom rising by the hoisting mechanism, but the side rail frames are connected by a flexible and extendable core material. The core material expands and contracts moderately and has an arc shape with an appropriate curvature so that it is not sandwiched between the side rail frames. Further, even when the bottom is not in a horizontal state, the core member can be rotated by appropriate expansion / contraction and bending.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, one embodiment is shown and explained about side rail 1 concerning the present invention based on an accompanying drawing. FIGS. 1 to 3 show the back-raising type according to the present invention, that is, the side rail 1 that can be bent by the back-raising and can be rotated even in the back-raising state and can be stored below the mounting table 6. The stretcher 2 provided with is shown. The stretcher 2 is configured to support a mounting table 6 via a support column 5 on a lower frame 4 having caster type wheels 3 , 3 . The mounting table 6 can be raised by a hoisting mechanism 7. In the present embodiment, the lower frame 4 has a low height, and is configured such that a space S opened laterally is formed below the mounting table 6 in a front view. The reason for this configuration is to allow the mounting table 6 to be stacked on the bed B or the like by the space S, and to facilitate transfer with the bed B or the like, and is limited to this embodiment. It is not a thing.
[0008]
First, the lower frame 4 is formed in a substantially H shape by connecting a front frame 8 and a rear frame 9 provided respectively in the front and rear by a vertical frame 10 in the front and rear direction, and caster type wheels 3 and 3 at four corners. ,... Are attached, are configured to be movable in either the front-rear direction or the left-right direction, and have a low height so that they can enter under the bed B. Reference numeral 11 denotes a braking device having the following configuration. First, a petal member 13 is fixed to triangular plates 12 and 12 that are sandwiched from both the left and right sides at a substantially intermediate portion of the vertical frame 10 and pivotally pivoted. A roller 14 is pivotally supported between the plates 12 and 12. A brake arm 16 bent in a crank shape is disposed between the mounting plates 15 and 15 fixed below the front and rear frames 8 and 9. A bracket 18 to which a roller 17 is rotatably attached is fixed to both ends of the brake arm 16, and the bracket 18 is pivotally supported on the mounting plates 15 and 15. . A spring 19 is disposed between the bracket 18 and the mounting plate 15. A brake piece 20 formed by fixing an arm member 20b to a ring member 20a is pivotally attached to the front and rear frames 8 and 9, respectively. That is, the roller 14 rotates the brake arm 16 when the petal member 13 is stepped on the ring member 20a that is normally not in contact with the wheel 3 by the biasing force of the spring 19. Then, the roller 17 arranged in the bracket 18 pushes the arm member 20b upward against the spring 19 and contacts the other side with the ring member 20a fixed to the wheel 3 to stop the turning and rotation of the wheel 3. It is.
[0009]
Next, the column 5 that supports the mounting table 6 will be described. In this embodiment, the support column 5 is provided with an elevating mechanism 22 for elevating and lowering the support column 5 composed of a link mechanism using a parallel link by means of expansion and contraction means 21. More specifically, lower struts 23 and 23 are erected on the vertical frame 10, and cylindrical bodies 23a and 23a are fixed to upper ends of the lower struts 23 and 23, and are substantially L-shaped in a side view. A pair of front and rear link arms 24, 24 configured in a shape are pivotally attached by pins 25, 25. The front and rear link arms 24, 24 are connected by a connecting rod 26. Further, these link arms 24, 24 are cylindrical bodies 28a that are integrally fixed to the lower ends of upper support columns 28, 28,... Fixed to the lower part of a frame 27 having a rectangular shape in plan view. , 28a,... Are pivoted by pins 29, 29,. The expansion / contraction means 21 is attached between the frame 27 and the link arm 24. Reference numeral 30 denotes a cover for the lower support 23, and 31 denotes a cover for the link arm 24.
[0010]
The expansion / contraction means 21 will be described in detail as follows. First, a cylindrical metal 34 is fixed to the other end of the sliding cylinder 33 with the attachment shaft 32 fixed to the end. A nut member 37 is screwed into and inserted into the sliding cylinder 33 with a male screw 36 having an anti-shake collar 35 attached to the end. The cylindrical metal 34 is formed with a projection 34 a and serves as a rotation stopper for the nut member 37. Then, these are inserted through the support cylinder 38. A plate 39 having a hole 39a substantially equal to the outer diameter of the sliding cylinder 33 is fixed to one end of the support cylinder 38, and a bracket 40 and a fixed metal 41 are fixed to the other end. . The brake metal 42 is fastened to the tip of the male screw 36 and the gear 43 is fastened. Further, one end of the outer periphery of the fixed metal 41 and the brake metal 42 is hung on a hole 42 a formed in the outer periphery of the brake metal 42, and the other end is attached to a notch 44 a provided in the cylindrical body 44. The spring 45 is wound around as described above. The head of the screw 46 that fastens the brake metal 42 and the male screw 36 can come into contact with the hole 44 b formed in the cylindrical body 44. A mounting member 47 is fixed to the bracket 40. Further, a gear 48 is attached so as to mesh with the gear 43. The gear 48 is configured to be forward / reversely movable by an elevating handle 49. That is, in the expansion / contraction means 21, the brake metal 42 rotates together with the male screw 36 by the forward rotation of the gear 48. At this time, the diameter of the spring 45 is increased, and the male screw 36 is rotatable. Then, the nut member 37 is moved by the rotation of the male screw 36 and the telescopic means 21 is extended. When the rotation of the gear 48 is stopped at a predetermined position, the spring 45 returns to its original diameter and holds the fixed metal 41 and the brake metal 42, so that the male screw 36 is in a non-rotatable state. On the contrary, when the gear 48 is rotated in the reverse direction, the screw 46 comes into contact with the hole 44b of the cylindrical body 44, and the cylindrical body 44 is rotated. Therefore, the end of the spring 45 hung on the notch 44a of the cylindrical body 44 is pushed to increase the diameter of the spring 45, so that the gear 43 can be rotated. 21 is shortened.
[0011]
Further, the mounting table 6 is mounted on the frame body 27. The mounting table 6 mainly includes a back support bottom 50 and a leg support bottom 51, and is configured to be raised by the hoisting mechanism 7. First, the back support bottom 50 is configured by arranging floor plates 53 and 53 on a back support frame 52 configured in a substantially U shape in plan view. Further, the leg receiving bottom 51 is configured in a rectangular shape in a plan view, and floor plates 53, 53,... Are arranged on a leg receiving frame 55 to which a reinforcing pipe 54 is fixed. A bracket 56 is fixed to the head side end portion of the leg receiving bottom 51, and a hole portion 52a drilled in the leg side end portion of the back receiving bottom 50 is pivotally attached by pins 57, 57 so as to be pivoted. It can be raised. .. Are fixed to the frame 27 by pins 60 so as to protrude downward from a rectangular saddle frame 58 fixed to the lower surface of the leg receiving bottom 51. Cam plates 61 and 61 are attached to the other attachment portion, and the cam plates 61 and 61 are attached to the frame body 27 with pins 62. When the lever 63 is rotated on the cam plate 61 in the direction of FIG. 5 (A), the mounting table 6 is inclined.
[0012]
And as the raising / lowering mechanism 7 of the mounting table 6, an extendable rod 64 is arranged between the frame body 27 and the backrest bottom 50. The expansion rod 64 uses a gas cylinder 65 in this embodiment, and is pivotally attached to the frame body 27 with the gas cylinder 65 inserted into the cylinder 66 so as to cover the gas cylinder 65. Then, on the other end side, the protrusion 65a of the gas cylinder 65 can be pressed by the rotation of the lever member 68 pivotally mounted in the bracket 67 fixed to the lower part of the back bottom 50. A constructed outer cylinder 69 is attached.
That is, the hoisting mechanism 7 having the above configuration presses the projection 65a of the gas cylinder 65 by the rotation of the lever member 68, releases the locked state of the gas cylinder 65, makes it extendable, and changes the setting to an arbitrary angle. At the same time, the gas cylinder 65 is covered with the cylindrical body 66 and the outer cylinder 69 to provide a waterproof effect.
[0013]
The stretcher 2 is provided with a back-raising-type side rail 1 described below. First, the back end frame 52 and the leg support frame 55 constituting the mounting table 6 are fastened to the other end portion of the support pipe 72 having attachment members 70 and 71 fixed to one end portion, respectively. The attachment member 70 is a stepped support shaft and includes a large diameter shaft portion 70a and a small diameter shaft portion 70b. The attachment member 71 has substantially the same shape as that of the money attachment member 70, but an arcuate claw portion 71b is integrally formed on the outer peripheral portion of the small diameter shaft portion 71a.
[0014]
Next, the side rail 1 is provided with a side rail frame 75 formed by fixing a saddle pipe 74 that is bent substantially in the middle of the horizontal portion of the substantially L-shaped pipe 73. Hollow bearings 76 and 77 are fixed to lower ends of the vertical portions of the pipe 73 and the saddle pipe 74. The bearing 76 is integrally formed with a claw portion 76a that engages with the claw portion 7b. The claw portion 76a is inserted into the small-diameter shaft portions 70b and 71a of the mounting members 70 and 71 and can be rotated by screws 78. It is fixed. The side rail frame 75 is rotatable within a range where the claw portion 76a of the bearing 76 is in contact with the claw portion 71b of the mounting member 71, and the rotation range depends on the size and position of the claw portions 71b and 76a. Can be set.
[0015]
Then, as a lock mechanism 79 for holding the standing state of the side rail frame 75, a metal 81 having a hole portion 81a having a smaller diameter than the inner diameter of the cylinder 80 is fixed to the upper part of the cylinder 80, and the cylinder The body 80 is fixed to the vertical portion of the saddle pipe 74. A spring 82 and a stepped stopper pin 83 are inserted into the cylindrical body 80. Then, the other end portion of the lever member 84 having one end inserted through the small-diameter shaft portion 83a of the stopper pin 83 protruding from the metal 81 and the hole portion 74a provided at the end with the saddle pipe 74 is fixed by the pin 85. It will be. The spring 82 is urged in the axial direction of the mounting member 71, and the tip end portion of the stopper pin 83 can be engaged with and disengaged from the hole portion 71 c provided in the mounting member 71. In other words, when the lever member 84 is pulled up against the spring 82, the engagement between the stopper pin 83 and the hole 71c is released, and the lever member 84 is in a rotatable state.
[0016]
The side rail frames 75 configured as described above are respectively attached to the left and right sides of the back support bottom 50 and the leg support bottom 51 of the mounting table 6. A slidable small-diameter pipe 86 is inserted into the horizontal portion of one pipe 73 as a core material that can be bent and stretched, and a shaft 87 is fixed to the end of the pipe 86. A shaft 87 is also fixed to the other pipe 73. A spring 88 is fitted between the shafts 87 and 87 to connect the side rail frames 75 to each other. Further, a resilient tube is fitted as a cover 89 around the spring 88 and the pipes 73 and 86 sliding portions.
[0017]
In the side rail 1 having such a configuration, when the back support bottom 50 stands up by the raising and lowering mechanism 7 of the mounting table 6, the side rail frame 75 attached to the back support bottom 50 side is provided on the back support bottom 50. Stand up with movement. At this time, the spring 88 has an arc shape with an appropriate curvature. Further, even when the mounting table 6 is not horizontal and is bent up and down, the lock mechanism 79 can be released and the side rail frame 75 can be rotated downward. This is because the angle formed by the horizontal portions of the pipes 73 and 86 of the side rail frames 75 and 75 changes, but the spring 88 has an arc shape with an appropriate curvature. This is possible because the sides slide.
In this embodiment, the spring 88 is used as an arcuate member having an appropriate curvature, but there is no problem even if a tube having a predetermined rigidity is used.
[0018]
In the side rail 1 configured as described above, when the mounting table 6 is in a horizontal state, the side rail 1 is in a standing state when rotated to a position where the lock pin 83 of the lock mechanism 79 and the hole portion 71c are engaged. Can be retained. Then, when transferring to the bed B or the stretcher 2, for example, the lever member 84 is pulled up as necessary to release the engagement between the lock pin 83 and the hole 71c, and the side rail 1 is removed. Can be transferred without any problem.
[0019]
Further, by operating the lever member 68 which is the raising and lowering mechanism 7 of the mounting table 6, the projection 65 a of the gas cylinder 65 is pressed and the gas cylinder 65 is extended, so that the back bottom 50 rotates the pin 57 around the center. Stand up as. The back side rail frame 75 is also erected by the erection of the back support bottom 50. At this time, the spring 88 has an arc shape with an appropriate curvature, and the pipe 73 and the pipe 86 slide appropriately, so that no excessive addition is added to the connecting portion of the side rail frames 75 and 75. Further, even when the mounting table is bent as described above, when the lever member 84 of the lock mechanism 79 is pulled up and the engagement between the stopper pin 83 and the hole portion 71c is released, the mounting table can be rotated downward, and the side rail It is also possible to store 1.
[0020]
FIG. 10 shows an embodiment in which the bed B is provided with the side rail 1 according to the present invention. This bed B is composed of a back support bottom, a waist support bottom, an upper leg support bottom, and a lower leg support bottom, and shows a structure in which both leg support bottoms are bent slightly with the raising and lowering mechanism (not shown). Yes. When the side rail 1 is attached to this type of bed B, the side rail frame 75 and the locking device 79 are attached to the attachment members 70 and 71 on the back receiving bottom and the lower leg receiving bottom as in the above embodiment. Further, an auxiliary side rail 90 is rotatably attached to the upper leg receiving bottom. Then, a slidable pipe 86 is inserted through the pipe 73 on the back bottom side, and a spring 88 is fitted between shafts 87 and 87 fixed to the pipe 86 and the auxiliary side rail 90 , respectively . Further, a slidable pipe 86 is inserted through the auxiliary side rail 90, and a spring 88 is fitted between shafts 87 and 87 fixed to the pipe 86 and the leg-side pipe 73, respectively .
[0021]
As for the side rail 1 of the bed B configured as described above, as in the case of the stretcher 1, the side rail 1 is slidable and bendable even when each bottom is bent without being horizontal. Since it is connected by a core material, it can be bent freely in conjunction with the movement of the bottom. Even in such a case, the side rail 1 can be rotated downward as necessary, which is convenient.
[0022]
【The invention's effect】
As described above, the back-raising-type side rail of the present invention is integrally configured and attached to the side portion of the bed or stretcher, so that it can be prevented from falling from the side. In addition, side rail frames are attached to each bottom, and the side rail frames are not only raised at the same time as the bottom rising by the hoisting mechanism, but the side rail frames are connected by a flexible and extendable core material. The core material expands and contracts moderately and has an arc shape with an appropriate curvature so that it is not sandwiched between the side rail frames. Further, even when the bottom is not in a horizontal state, the core member can be rotated by appropriate expansion / contraction and bending. Moreover, since these operations are only operations of the lock mechanism that holds the standing state of the side rail, they can be easily and safely performed.
[Brief description of the drawings]
FIG. 1 is an overall side view of a stretcher provided with a side rail according to the present invention. FIG. 2 is an overall front view of the stretcher. FIG. 3 is an overall plan view of the stretcher. FIG. 6 is an explanatory view showing the expansion / contraction means. FIG. 7 is a plan view showing the mounting table. FIG. 8 is a sectional side view of the main part showing the hoisting mechanism. FIG. 10 is a side view showing an embodiment attached to a bed.
DESCRIPTION OF SYMBOLS 1 Side rail 2 Stretcher 6 Mounting stand 7 Unraising mechanism 75 Side rail frame 79 Locking mechanism

Claims (1)

A bed or stretcher or the like having a relief mechanism in the bottom, the side rail frame each pivotally attached so as to be rotatable to the bottom side of each bending, a these side rails frame freely and extendable bending together constituting a unitary side rail by linking with the core material, the said side rails includes a stopper mechanism for holding the upright position, from the side of the bottom when the side rail is in the upright position thereby preventing falling, when the bottom is standing by undulating mechanism, with also upright side rail frame corresponding to the bottom of standing, the bottom the core member is an arc having a suitable curvature even in a bent state It prevents falling from the bottom side surface, and if necessary, downward from the bottom side by releasing the locking mechanism Back lifting corresponding type side rails, characterized by being configured rotatably and so as.

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