JPH03202018A - Sheet take-up type bed and sheet used therefor - Google Patents

Abstract

PURPOSE:To simply and quickly execute the work for changing a used sheet for a new sheet by supporting a feed roller for taking up an unused area of a band-like sheet and take-up roller for taking up a used area by a bed. CONSTITUTION:A sheet 20 laid on the surface of a mat 10 can be fed in the A direction, and one end side thereof is taken up to a feed roller 30 which is in the lower part of a floor plate 12 and provided in the vicinity of one leg part 14, and the other end side thereof is taken up to a take-up roller 40 which is in the lower part of the floor plate 12 in the same way and provided in the vicinity of the other leg part 16. The feed roller and the take-up roller are both supported so as to be freely rotatable by this bed. In such a way, a new sheet 20 which is not used yet can be fed out to the surface of the mat 10, and in a state that the used sheet 20 is wound up by the roller 40, driving to the rotate is stopped. Since the laying work of the sheet 20 can be realized by driving to rotate the roller 40, the bed-making work can be realized quickly and simply.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a sheet roll-up bed that allows sheets to be easily replaced, and sheets using the same.

[Prior Art and Problems to be Solved by the Invention] Conventionally, bed making work involves stripping used sheets from the bed, stretching clean sheets without wrinkles, and attaching them to the bed. Instead, all of these tasks were done manually by workers. These bed-making operations, especially in accommodation facilities such as hotels with a large number of beds, hospitals, or nursing homes, require the use of many human resources to complete the work within a certain amount of time, which can be costly in terms of personnel costs, etc. It was a big burden.

These problems are not limited to facilities with a large number of beds, but also in ordinary households with people with disabilities, the elderly, etc., and the daily work of making beds is a huge burden, and this problem will continue to grow in the face of an increasingly aging society. A countermeasure was desperately needed.

Additionally, in the past, as an incidental task to bed making work, it was essential to transport a large amount of clean sheets to each room after cleaning. Post-processing work is indispensable, and this also places a heavy burden on the workers.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a sheet roll-up type bed and sheets used therefor, which can easily and quickly replace used sheets with new sheets.

[Means for Solving the Problems] The sheet roll-up bed according to the present invention is laid on the bed surface so that it can be fed along one side of the bed, and different sheet surfaces are set to be fed multiple times on the bed surface. a belt-shaped sheet of a possible length; a feed roller rotatably supported by the bed at one end in the sheet feeding direction and winding an unused area of the belt-shaped sheet; and a bed at the other end in the sheet feeding direction. and a take-up roller that is rotatably supported by the belt-shaped sheet and winds the used area of the belt-shaped sheet.

The sheet roll used in the sheet roll-up bed according to the present invention is wound into a roll at both ends of the sheet roll-up bed, and is used to feed different sheet surfaces multiple times onto the bed surface over a settable length. The belt-shaped sheet has a wide part that can come into contact with both sides of the bed perpendicular to the sheet feeding direction, and a wide part that can come into contact with both sides of the bed that is perpendicular to the sheet feeding direction, is formed in the length region of one sheet laying range, and a narrow part is formed in the region that separates different laying ranges. It forms a part.

[Function] According to the sheet winding bed according to the present invention, bed making work can be performed by rotating at least the winding roller manually or by a drive source such as a motor in the sheet winding direction. can. That is, when the take-up roller is rotationally driven, the used sheets laid on the bed surface are conveyed along the sheet feeding direction from one end of the bed to the other end, and the sheets on the used area are transported. It is possible to wind it up on a winding roller.

At the same time, the feed roller is driven to rotate, for example, and sequentially sends out the unused areas of the sheets, thereby making it possible to lay clean sheets in the unused areas on the bed surface.

At this time, in order to prevent wrinkles in the sheets that occur when laying the sheets or when sleeping, as shown in claim (2),
It is preferable to provide one or both of means for preventing the sheet from being sent out from the feed roller or from being rewound from the take-up roller.

According to the sheet according to the present invention as set forth in claim (3), wide portions that can come into contact with both sides of the bed perpendicular to the sheet feeding direction are formed, so when a band-shaped sheet having the same width as the bed width is used. As shown in the figure, it is possible to prevent the occurrence of wrinkles due to turning up of the ends in the width direction of the sheet, and it is possible to improve the appearance of the sheet after it is laid down.

When using a sheet as shown in claim (3), as shown in claim (4), by folding back both ends of the wide part and winding it into a roll, the length of one feeding roller and one winding roller can be increased. The width can be kept within the width of the bed, and the bed can be prevented from becoming too large.

Furthermore, as shown in claim (5), by forming a member such as a Velcro tape or a hole in the wide portion to engage with the side surface of the head, both ends in the width direction of the sheet can be secured on both sides of the bed. can be fixed without providing a mechanical wrinkle prevention means as set forth in claim (2),
Prevents the appearance of wrinkles + J2.

[Example 1] Hereinafter, an example of a sheet roll-up type bed to which the present invention is applied and sheets used therein will be specifically described with reference to the drawings.

FIG. The mat has two legs 14 and 16, and a back plate 18 that projects vertically upward from one of the legs 14 and extends to a position higher than the surface of the mat 10.

The sheet 20 laid on the surface of the mat 10 is
It can be fed along the direction of arrow A in the figure, one end of which is wound around a feed roller 3° provided below the floorboard 12 and near one of the legs 14, and the other end teeth,
Similarly, it is wound around a take-up roller 40 provided below the floorboard 12 and near the other leg portion 16 . The feed roller 3 and take-up roller 40 are both rotatably supported by this bed.

The structure of this installation will be explained with reference to FIG. 2 as well. That is, roller support plates 34 and 34 are attached to both end faces in the width direction of the floor plate 12 via hinges 36, 36, and are swingable in the direction of arrow B in the figure. This roller support plate 34, 34i: i, t, holes 34a, 34a are provided, and the feed roller 30 is rotatably supported by inserting and supporting the pin 32 protruding from both ends of the feed roller 30. . Similarly, the winding roller 40 is rotatably supported by inserting and supporting a pin 42 into a hole 44a of a roller support plate 44. In this embodiment, the take-up roller 40 is driven to rotate, and the feed roller 30 is driven to rotate via the sheet 20. This winding roller 40
A roller rotation jig 60 is used to rotate the roller. This roller rotation tool 60 has a square pin 64 formed at one end of a jig plate 62, and a nozzle 66 fixed to the back surface of the other end of the jig plate 62. One of the pins 42 protruding from the winding roller 40 is provided with a square hole (not shown), and after inserting the square pin 64 into the square hole, the handle 66 is moved around the square bottle 64 as shown in the figure. By rotating in the direction of arrow C, the take-up roller 40 can be driven to rotate in the direction of arrow C, which is the sheet winding direction. By rotationally driving the take-up roller 40 in the direction of arrow C, the perilla 20 is fed and moved in the direction of arrow A in FIG. 1, and the feed roller 30 is driven to rotate in the direction of arrow B. Become.

The roll-shaped sheet 20 wound around the feed roller 30 is arranged between the end surfaces of the floorboard 12 and the mat 20, the back Fi,
It is pulled vertically upward through a slight gap between the mat 18 and the mat 10, and laid on the surface of the mat 10. On the other hand, the sheet 20 laid on the surface of the mat 10
The two sheets disposed near the other end of the sheet are guided vertically downward and below the floor plate 12 by idle rollers 52 and 54, and are wound up by the winding roller 40. The guide rollers 52 and 54 are attached to mounting plates 50.5 fixed at both ends in the width direction at the upper end of the leg 16.
0 and is rotatably supported.

Next, the details of the sheet 20 are shown in FIGS. 3 and 4.
This will be explained with reference to the figures.

FIG. 3 is a developed view of the sheet 20, and a plurality of engagement holes 26 (only one end side is shown in FIG. 3) are provided at both ends of the belt-like sheet 20 in the longitudinal direction. Roller 30. It engages with a protrusion (not shown) formed on the circumferential surface of the take-up roller 40 and is fixed to each roller 30, 40. The characteristic structure of this sheet 20 is that the sheet 20 is not formed with the same width in the longitudinal direction, but has a wide portion 22 formed in the length region of one sheet laying range E, and a partition between different laying ranges. The narrow portions 24 formed in the regions are alternately formed. In addition to the length in the width direction of the mat 10, the wide portion 22 is formed to have a length such that it can come into contact with the side surface 10a of the mat 10. Then, a Velcro tape 28 is formed at a position where it comes into contact with the side surface 10a of the mat 10. Note that the side surface 10 of the mat 10 corresponding to this Velcro tape 28
A joining member that engages with the Velcro tape 28 is arranged at a. On the other hand, the narrow portion 24 is formed to have a length slightly shorter than the length of the mat 10 in the width direction, and approximately equal to the length of the feed roller 302 and the take-up roller 40. Here, since the length of the wide portion 22 is longer than the width of the mat 10, when the wide portion 22 is rolled into a roll in a flat state as shown in FIG.
It is unavoidable to make the length of the 01 take-up roller 40 longer than the width of this bed. Therefore, as shown in FIG. 4, when the sheet 20 is wound around each roll 30.degree. 40, both ends of the wide portion 22 are folded back so as to have approximately the same width as the narrow portion 24. At this time, the Velcro tape 28 is folded back in a direction so as not to be exposed to the outside.

Next, the operation of this sheet roll-up bed will be explained.

In this embodiment, when setting different sheet surfaces on the surface of the mat 10, a roller rotating jig 60 is used. The square bin 64 of this roller rotation jig 60 is attached to the roller support plate 44.
The pin 42 of the take-up roller 40 is inserted into a square hole (not shown) exposed to the outside through the hole 44a. Thereafter, the handle 66 is rotated about the square pin 64 in the direction of arrow C in FIG. As a result, the take-up roller 40 is rotationally driven in the direction of arrow C in the figure, and the sheet 20 laid on the surface of the mat 10 is fed and moved in the direction of arrow A in the figure via the guide rollers 52 and 54. It becomes possible to do so. On the other hand, the feed roller 30 is driven to rotate in the direction of the arrow in the figure, allowing new, unused sheets 20 to be fed onto the surface of the mat 10, and used sheets 20 to be rolled up by the take-up roller 40. The above-mentioned rotational drive is stopped in the removed state.

When the sheet 20 is being fed and moved, the wide portion 22 of the sheet 20 is conveyed with both ends folded inward as shown in FIG. 4, and is laid on the surface of the mat 10. . Therefore, after the above-mentioned feeding movement is completed, both ends of the wide portion 22 are bent so as to contact the side surfaces 10a of the mat 10, and then the Velcro tapes 28 provided at both widthwise ends of the wide portion 22 are attached to the side surfaces 10H.
The work of laying the sheet 20 can be completed by joining the sheet 20 to a joint surface (not shown) formed in the sheet.

Then, when joining the Velcro tape 28, the sheet 2
By stretching the sheet 20 so that it comes into close contact with the surface of the mat 10, it is possible to prevent wrinkles from forming when the sheet 20 is laid down. Moreover, since this state is maintained while the Velcro tape 28 is being bonded, it is possible to sufficiently prevent wrinkles from forming even while sleeping.

In this way, according to the sheet roll-up bed of this embodiment,
Since the work of laying the sheets 20 for bed making can be accomplished by rotationally driving the take-up roller 40, the bed making work can be accomplished quickly and easily. In addition, the Velcro tape 2 formed on the wide portion 22
8 to the side surface 10a of the mat 1O, it is also possible to prevent wrinkles from occurring in the sheet 20.

Furthermore, the length of the sheet 20 wound around the feed roller 301 and take-up roller 40 can be wound up to 20 m or more, so new sheets and used sheets can be rolled up over a period of one week or more. It also eliminates the need to transport the product to each room, significantly reducing the burden on the worker.

Feeding roller 30. The work of replacing the take-up roller 40 can be easily realized as follows. That is, each roller 30
, 40 rotatably supports the roller support plate 34.
44 is rotatable relative to the floor plate 12 in the direction of arrow B in FIG.
42 and the holes 34a, 44a of the roller support plates 34, 44 can be easily released, and the respective rollers 30, 40 can be removed. Setting of new rollers 30 and 40 is possible by performing the reverse process of removing this roller.

Note that the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the gist of the present invention.

In order to realize such a sheet roll-up bed, it is necessary to suppress wrinkles that occur in the sheet 20 as much as possible, and for this purpose, the Velcro tape 28 as in the above embodiment is bonded to the side surface 10a of the mat 10. The rotation of the feed roller 302 and the take-up roller 40 may be mechanically stopped. As such a means, one shown in FIG. 5 can be mentioned.

The one shown in the figure has a saw blade-shaped gear 70 fixed coaxially with the feed roller 30, and a claw member 72 that can engage and disengage from the gear 70 is moved in the direction of arrow F in the figure. It is designed to be able to swing freely. When feeding out the sheet 20, the claw member 72 is disengaged and the feeding roller 30 is rotated in the direction indicated by the arrow, which is the drawing direction. On the other hand, after the sheet feeding is finished, the claw member 72 is
is engaged with the gear 70, and due to this engagement, the feed roller 30
Rotation in the direction of the arrow, that is, rotation in the feeding direction of the sheet 20 can be prevented, and wrinkles caused by feeding out the sheet 20 excessively can be prevented. A similar mechanism may be provided on the take-up roller 40 side to prevent the sheet 20 from being unwound and rotated in the direction opposite to the direction of arrow C in FIG. 1 after the sheet 20 has been wound. still,
In order to prevent the unwinding rotation of the winding roller 40, rotation is always allowed only in the winding direction without requiring manual work such as manually engaging and disengaging the pawl member 72. It is also possible to incorporate a mechanism such as In addition, as a means to effectively prevent wrinkles from occurring in the sheet 20, the feed roller 30 is always urged to rotate in the opposite direction to the feed direction, while on the take-up roller 40 side, this roller 4 is always urged.
A spring member may be provided to bias the roller 0 to rotate in the winding direction. As mentioned above, mechanically the roller 3
In addition to stopping the rotation of the rollers 30 and 40 in a certain direction or urging the rollers 30 and 40 to rotate in one direction using a biasing member, the sixth method is a means for effectively preventing wrinkles from occurring in the sheet 20. It is also possible to adopt a mechanism as shown in the figure. In this figure, in order to prevent excess sheets 20 from being sent out from the feed roller 30, a part of the back plate 18 is made into a movable part 18a, and this movable part 18a is connected to the mat 1.
It is made to be able to swing freely between a position where the surface of the 0 is pressed and a position where it is not pressed. The movable portion 18a is set at a position where it does not press the surface of the mat 10 when feeding the sheet 20, and allows movement of the sheet 20 in the feeding direction. On the other hand, after laying the sheet 20 on the surface of the mat 10,
The movable part 18a is set at a position to press the mat 10, and the cloak 10 and the movable part 1 are moved by using the flexibility of the mat 10.
By inserting and supporting the sheet 20 between the bottom surface of the sheet 8a, unnecessary feeding movement of the sheet 20 can be prevented. Such a mechanism can also be provided on the winding opening 40 side.

The sheet used in the sheet roll-up type bed of the present invention may be one in which the wide portions 221 and the narrow portions 24 are alternately formed as in the above embodiment, and which can cover both sides of the mat 10. , a belt-shaped sheet having approximately the same length in the width direction as the mat 10 may be used. At this time, since such a sheet cannot be joined to the side surface 10a of the mat 10, it is only necessary to provide a wrinkle prevention means to mechanically restrict the rotation of the rollers 30, 40 as described above. . Moreover, as for the direction in which the sheets are fed, in addition to the direction in which the sheets are fed along the longitudinal axis of the bed as in the above embodiment, the sheets may be fed and moved along the lateral direction of the bed. At this time, the feed roller 30. Since the length of the take-up roller 40 is approximately equal to the longitudinal length of the bed, such a long roller 3
In order to smoothly rotate the 040, motors or the like may be arranged at both ends of the 040 to rotate synchronously.

Furthermore, when the seesaw is moved along the width direction of the bed, the side surface 10a of the mat 10 can be covered with a sheet, giving a good appearance. By providing them together, it is possible to prevent wrinkles from occurring in the sheets.

[Effects of the Invention] As explained above, according to the sheet winding head according to the present invention, both ends of a sheet laid down so as to be fed along one side of the bed are wound in a roll shape, and the sheet winding head is By rotating the roller, the used area of the sheet can be rolled up and stored, and by rotating the feed roller, the unused area of the sheet can be delivered to the bed surface, making it possible to speed up and simplify bed making work.

According to the sheet used for the sheet roll-up bed according to the present invention, the wide part formed in the length region of one sheet laying range and the narrow part formed in the region separating different sheet laying ranges. By forming the sheet alternately along the feeding direction, the wide part of the sheet can cover both sides of the bed in addition to the surface of the bed. By forming an engaging member, it is possible to effectively prevent wrinkles from occurring in the sheets.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of a sheet winding bed to which the present invention is applied. FIG. 2 is a schematic explanatory diagram showing a support structure for a feed roller and a winding roller. FIG. 3 is a sheet winding bed according to the present invention. The development diagram, Figure 4, is
FIGS. 5 and 6 are schematic perspective views for explaining the state of sheet feeding and movement; FIGS. 5 and 6 are schematic explanatory views each showing a mechanism for preventing excess sheets from being sent out from the feeding roller. 20... Sheet, 22... Wide part, 24... Narrow part, 28... Joining member (Velcro tape), 30...
・Feed roller, 40... Winding roller, 70.72,1
8a...Roller rotation regulating member.

Claims (5)

[Claims] (1) A belt-shaped sheet that is laid on the bed surface so that it can be fed along one side of the bed, and has a length that allows different sheets to be fed multiple times on the bed surface, and on one end side in the sheet feeding direction. a feed roller that is rotatably supported by the bed and winds an unused area of the belt-shaped sheet; and a feed roller that is rotatably supported by the bed at the other end in the sheet feeding direction and winds the used area of the belt-shaped sheet. A sheet roll-up bed characterized by having a take-up roller that does. (2) In claim (1), after the sheet is laid on the bed surface, means for preventing the sheet from being sent out from the feeding roller and means for preventing the sheet from being rewound from the take-up roller. , a roll-up bed with one or both of them. (3) A belt-shaped sheet of a length that is used by being wound into a roll at both ends of a sheet roll-up bed and can be set to feed different sheet surfaces multiple times on the bed surface, and has a sheet feeding direction. A sheet roll characterized in that a wide part that can come into contact with both sides of the bed that intersects perpendicularly is formed in a length region of one sheet laying range, and a narrow part is formed in a region that separates different laying ranges. Sheets used for adjustable beds. (4) In claim (3), the sheet for use in a sheet roll-up bed is characterized in that the wide portion is wound into a roll with both ends folded back so that the wide portion has approximately the same width as the narrow portion. . (5) A sheet for use in a sheet roll-up bed according to claim (3) or (4), wherein members that engage with side surfaces of the bed are formed at both ends in the width direction of the wide portion.