JPH0528251U - Bed sheet changer - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a bed sheet changing device capable of easily changing sheets. [Structure] A rewind reel 5 around which a sheet 7 is wound is mounted on a lower side of one side of a mattress 4, and a take-up reel 6 around which the tip of the sheet 7 unwound from the rewind reel 5 is wound around.
Is mounted on the lower side of the mattress 4 on the other side, and a regulating means for giving a rewinding resistance to the rewinding reel 5 is provided, and a handle 13 for rotationally driving the take-up reel 6 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bed sheet changing device for efficiently changing bed sheets.

[0002]

[Prior Art]

 It is desirable that the so-called bed making, in which used sheets are replaced with new sheets, is performed in a short time. However, in the case where manpower is insufficient as in recent years, many workers may not be able to secure bed making, and some measures are desired from the viewpoint of improving work efficiency.

[0003]

[Problems to be solved by the device]

 The problem to be solved by the present invention is to provide a bed sheet changing device capable of changing sheets easily and quickly without requiring any skill.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides a rewinding reel wound with a sheet formed in a strip shape having the same width as the longitudinal direction of the mattress, and a tip of the sheet unwound from the rewinding reel through the upper surface of the mattress. A take-up reel for winding the take-up reel, a handle for driving the take-up reel to rotate, and a restricting means for restricting free rotation of the rewind reel and the take-up reel. In addition, the take-up reel is mounted on the lower side of the other side of the mattress so that the sheets covering the upper surface of the mattress are wound around the take-up reel while being wound around the take-up reel. The feature is that the cut sheets are fed out and supplied to the upper surface of the mattress.

[0005]

[Action]

 When the take-up reel 6 is rotationally driven, the sheet 7 covering the upper surface of the mattress 4 is wound up by the take-up reel 6 and collected, and the sheet 7 wound around the rewind reel 5 is accordingly collected. Is fed to the upper surface of the.

Further, since the rewinding resistance is given to the rewinding reel 5 by providing the brake, the sheets 7 always maintain a tense state. Therefore, the sheets 7 covering the surface of the mattress 4 can be easily replaced by simply rotating the winding reel 6 with the handle 13.

[0007]

【Example】

 FIG. 1 is a schematic perspective view of a bed equipped with a sheet changing device according to the present invention, FIG. 2 is a view taken in the direction of arrow A of FIG. 1, FIG. 3 is a view taken in the direction of arrow B of FIG. 1, and FIG. FIG. 5 is a sectional view of a shaft supporting portion of the take-up reel, and FIG. 6 is a front view of a reverse rotation preventing mechanism of the rewinding reel.

In these figures, the bed 1 is composed of a frame 3 having legs 2, and a mattress 4 placed on the upper surface of the frame 3. A rewinding reel 5 is mounted on the lower side of the mattress 4, and a take-up reel 6 is mounted on the lower side of the other side of the mattress 4. Both the rewinding reel 5 and the take-up reel 6 are made of a pipe material having the same length as the longitudinal dimension of the mattress 4.

The rewind reel 5 is wound with a sheet 7 formed in a strip shape having the same width as the longitudinal dimension of the mattress 4, and the sheet 7 unwound from the rewind reel 5 is attached to the mattress 4. It is wound around the take-up reel 6 after circumventing the upper surface of the. Therefore, when the take-up reel 6 is rotated clockwise in the drawing, the sheets 7 wound around the rewind reel 5 pass through the upper surface of the mattress 4 and are taken up by the take-up reel 6, so that the mattress 4 is covered. The sheets are substantially replaced.

At both ends of the rewinding reel 5, a shaft 9 attached to the leg portion 2 via a bearing 8 is detachably inserted and engaged so that the rewinding reel 5 is mounted on the leg portion 2. ing. By providing the bearing 8 with a leaf spring 10 that functions as a brake that comes into contact with the shaft 9 with a predetermined frictional resistance, it is possible to prevent the slack of the sheets 7 due to the careless rotation of the rewind reel 5. ing. Therefore, the rewind reel 5 is rewound and rotated by an amount corresponding to the amount of the sheets wound with the rotation of the take-up reel 6, but the rewind reel 5 is allowed to rotate only when the take-up reel 6 is driven. Other configurations of brakes can also be provided.

On the other hand, the drive shaft 11 detachably attached to the end of the take-up reel 6 is attached to the leg 2 via the bearing 12, so that the take-up reel 6 is mounted on the leg 2. ing. Further, the handle 13 is attached to the tip of the drive shaft 11, and the reverse rotation preventing mechanism 14 by the ratchet mechanism is interposed between the drive shaft 11 and the bearing 12 so that the take-up reel 6 can be manually operated using the handle 13. It can be rotated.

The reverse rotation prevention mechanism 14 is composed of a ratchet gear 14a provided on the drive shaft 11 and a ratchet pawl 14b pivotally mounted on the bearing 12 by a pin 14c. The ratchet pawl 14b is connected to the ratchet gear 14a. The drive shaft 11 is prevented from rotating in the reverse direction by engaging with the drive shaft 11 to prevent the winding reel 6 from rotating in the reverse direction.

In the sheet exchange device configured as described above, the rewind reel 5 around which the clean sheet 7 is wound is set on the shaft 9, and the empty take-up reel 6 on which the sheet is not wound is set as the drive shaft. Set to 11. Then, the front end of the sheet 7 rewound from the rewind reel 5 by bypassing the upper surface of the mattress 4 is wound around the take-up reel 6.

When winding the tip of the sheet 7 in this way, the tip of the sheet 7 is surely attached to the take-up reel 6 by using an adhesive tape or the like or another fixing means represented by a clip or the like. You should stop.

Then, the handle 13 is operated to drive the take-up reel 6 to rotate, so that the sheet 7 covering the upper surface of the mattress 4 is appropriately tensioned. The rewind reel 5 is prevented from free rotation by the frictional resistance given to the shaft 9 by the leaf spring 10, and the take-up reel 6 is prevented from rotating in the reverse direction by the reverse rotation preventing mechanism 14. Is maintained.

Next, when replacing the sheets 7, the handle 13 is operated to rotate the take-up reel 6. Then, the sheets 7 that have covered the upper surface of the mattress 4 are wound up and collected on the take-up reel 6, and accordingly, new sheets 7 are unwound from the rewinding reel 5 and fed to the upper surface of the mattress 4. Supplied.

That is, when the sheets 7 that have already been used are collected on the take-up reel 6, new sheets are automatically paid out from the rewind reel 5 to the upper surface of the mattress 4, so that the conventional replacement is required. No need to do any work. Further, since the free movement of the rewinding reel 5 is prevented, the sheet 7 can be set in a wrinkle-free state even though it is an independent work, and bed making can be efficiently performed.

When the sheets 7 wound on the rewind reel 5 are used up and become empty, the take-up reel 6 on which the sheets 7 are wound is removed, and the rewind reel 5 becomes empty. Is used as the take-up reel 6, and a new rewind reel 5 may be set on the shaft 9.

In the embodiment, both the rewinding reel 5 and the take-up reel 6 are made of pipe material so as to be used in common. However, the configurations of these reels 5 and 6 are not limited to the embodiments. Further, in the embodiment, the leaf spring 10 is used to prevent the free rotation of the rewinding reel 5, and the reverse rotation preventing mechanism 14 by the ratchet mechanism is used to prevent the free rotation of the take-up reel 6. Any means for preventing the reels 5 and 6 from freely rotating is arbitrary.

[0020]

[Effect of the device]

 According to the present invention, since the sheets covering the surface of the mattress can be easily and quickly replaced by simply rotating the take-up reel with the handle, bed making can be efficiently performed.

[Brief description of drawings]

FIG. 1 is a perspective view of a bed equipped with a bed sheet changing device according to the present invention.

FIG. 2 is a view on arrow A in FIG.

FIG. 3 is a view on arrow B of FIG.

FIG. 4 is a front view of a shaft supporting portion of a rewinding reel.

FIG. 5 is a cross-sectional view of a shaft support portion of a take-up reel.

FIG. 6 is a front view of a reverse rotation preventing mechanism of the rewind reel.

[Explanation of symbols]

 1 bed 2 legs 3 frame 4 mattress 5 rewind reel 6 take-up reel 7 sheets 8 bearing 9 shaft 10 leaf spring 11 drive shaft 12 bearing 13 handle 14 reverse rotation prevention mechanism 14a ratchet gear 14b ratchet pawl 14c pin

Claims (1)

[Scope of utility model registration request] 1. A rewind reel around which a sheet formed into a strip shape having the same width as the longitudinal direction of a mattress is wound, and a take-up reel around which the tip of the sheet unwound from the rewind reel via the upper surface of the mattress is wound. A handle for rotating the take-up reel, and a restricting means for restricting free rotation of the rewind reel and the take-up reel. The rewind reel is mounted on one lower side of the mattress and the take-up reel is installed. By pivoting the mattress on the lower side of the other side, the sheets covering the upper surface of the mattress are wound around the take-up reel while the take-up reel is wound and rotated, and the sheets wound around the rewind reel are attached to the upper surface of the mattress. Bed bed changing device characterized in that it is fed out and supplied to the bed.