JP2922464B2 - Sheet changers and beds - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a sheet changing device and a bed.

[0002]

2. Description of the Related Art In order to maintain the cleanliness of bedridden sick and elderly people, it is important to replace dirty old sheets with new, clean sheets. This sheet exchange is usually performed manually. An example of manual sheet replacement work is shown below. First, the person lying on the bed is laid horizontally and moved to the vertical half of the bed. Next, the sheet on the vertical half surface on the empty side is folded toward the center of the bed while being folded in the longitudinal direction of the bed. This time, move the person to the vertical half of the bed where the sheets are folded. This removes the old sheets from the bed, as there is nothing to press on the sheets from above. Next, lay new sheets on the bed. First, lay one side of the new sheet on the half-length side of the bed on the empty side. Then, move the person to one half of this new sheet and spread the remaining half of the new sheet on the remaining vertical half-bed. Finally, return the person to the center position.
In this way, old sheets can be exchanged for new sheets.

[0003]

However, as described above, replacing old sheets with new sheets is a very heavy labor. At least two people are needed to lift and move a person or to lay a new sheet cleanly on a bed. In other words, there is a problem that two or more persons are required for one sick person to exchange sheets. Further, in a general home, two or more people can be secured only when, for example, a family gathers or when a home helper comes to the home, so that there is a problem that the time zone for exchanging sheets is limited. Furthermore, if you are skilled like a hospital nurse and can change sheets quickly, the time spent on changing sheets is short. But,
In the case of home care, there is a problem that the person who changes the sheets is usually an amateur and is unfamiliar, so the time spent on changing the sheets becomes longer, and both the person who changes the sheets and the sick person who has the sheets changed are both difficult. is there.

[0004] In view of such circumstances, it is an object of the present invention to provide a sheet changing tool and a bed that can be easily changed by one person at any time with a simple operation.

[0005]

According to a first aspect of the present invention, there is provided a sheet changing device, wherein loops are provided at both end edges in the longitudinal direction of a bedsheet.
It is an instrument to replace the old sheets attached to new sheets.
To disengage the old sheet loop on the roll surface
The old sheet is provided with a projection, and the old sheet is wound up.
The new sheet loop is disengaged on the roll-up rod and the roll surface.
The old sheet take-up rod is provided with a projection
At the same time as the sheets are wound up, new sheets are fed out
New sheet winding rod, and the pair of old sheet winding rods and
All of the new sheet take-up rods are rotatably mounted, and
Thickness that can move between the bed and the person sleeping in the bed
Of the sheet, and each of the sheet winding rods is detachably attached to each of the sheet winding rods.
Wherein the ing from the rotary handle for rotating the. The sheet changing device of the second aspect is the sheet changing device according to the first aspect.
In the present invention, the pair of old sheet winding rods and the new sheet winding rod are disposed in parallel with each other,
The direction of winding old sheets wound on a stick is a new sheet
Same as the unwinding direction of the new sheet unwound from the winding rod
Direction, wherein the new sheet and the old sheet
It does not touch . Bed of claim 3, base
Bed on which the bed spring is mounted, and the bed body
Each of the front and rear plates and the bed spring
It is provided in the gap so that it can move up and down, and the tip is inverted J-shaped.
A pair of front and rear sheet pulling hooks,
Hook raising and lowering up and down by synchronizing the pulling hook
And a descending means . In the present specification, the “edge” is a concept including not only an edge portion in the longitudinal direction but also a slightly inner portion.

[0006]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a first embodiment of the sheet changing device of the present invention.
It is explanatory drawing which concerns on embodiment, (A) is a side view,
(B) is a partial plan view. 2 is a side sectional view of the same, FIG.
FIG. 5 is a partial plan view of the same with the rotation handle removed. As shown in FIGS. 1 to 3, the sheet changing device 1 of the first embodiment includes a casing 2 having a pair of rod cases 2a and 2b.
In addition, a pair of new sheet winding rod and old sheet winding rod 10a,
10b is rotatably and detachably attached, and the pair of new sheet winding rod and old sheet winding rod 10a, 10b
The detachable rotary handle 20 is attached to any of the above.

The casing 2 has a pair of rod cases 2a and 2b provided in parallel and close to each other, and a biaxial support member 3 is attached to both ends of the pair of rod cases 2a and 2b. Since the pair of rod cases 2a and 2b are substantially identical to each other, the rod case 2a will be described as a representative. The rod case 2a is formed by cutting an elongated cylindrical pipe in two places in parallel along the longitudinal direction, and removing a portion having a shorter arc to form an arc in a sectional view. In the figure, it is a gutter shape leaving about 2/3 of the circumference in side view. A rod case 2b similar to the rod case 2a is prepared, and one end edge on the cut peripheral surface of the rod case 2a and the rod case 2b.
One edge on the cut peripheral surface of 2b is a rod case
The two cut portions 2a and 2b are joined together in an open state. The biaxial support member 3 rotatably supports a pair of new sheet winding rods and old sheet winding rods 10a and 10b, and is fixed to both ends of the pair of rod cases 2a and 2b in the longitudinal direction. Have been. Moreover, the pair of new sheet winding rods and the old sheet winding rods 10a and 10b are detachably attached to the pair of rod cases 2a and 2b, respectively. For this reason, it is easy to clean the inside of the casing 2 including many concave portions. In particular, since the inside of the stick case 2a is easy to clean, the new sheets are not stained. In addition, since the inside of the stick case 2b is easily cleaned, it is possible to remove dust and dirt that have been wound up together with old sheets.

Next, a pair of new sheet winding rods and old sheet winding rods 10a and 10b will be described. Since the pair of new sheet winding rods 10a and 10b are substantially identical to each other, the new sheet winding rod 10a will be described as a representative. FIG. 4 is a single view of the new sheet winding rod 10a.
(A) is a front view, (X) is an enlarged view of the X part of (A). As shown in FIG.
Rod-side sheet engaging and disengaging means on the peripheral surface of the elongated shaft 11a
A handle hole 14a for mounting the rotary handle 20 is formed at one end of the shaft 11a. 13a, 13a are pull-out preventing rings.
The rod-side sheet engaging and disengaging means 15a is provided on the peripheral surface of the shaft 11a,
A plurality of projections 16a are attached at equal intervals in the longitudinal direction of the shaft 11a. In addition, rod side sheet engaging and disengaging means 15
The number of projections 16a of a is four in the figure, but is not particularly limited as long as it is plural.

[0009] As shown in FIG.
Is a known device that can rotate the new sheet winding rod 10a in its own axis direction by engaging the projection 21 with the handle hole 14a of the new sheet winding rod 10a and turning the handle 22. is there. Also, by removing the rotating handle 20 from the new sheet winding rod 10a, engaging the projection 21 of the rotating handle 20 with the handle hole 14b of the old sheet rod 10b shown in FIG. The rod 10b can be rotated in its own axis direction. The rotating handle 20 is a new sheet take-up rod.
The new sheet winding rod 10a and the old sheet winding rod 10b can be rotated, and any of the pair of new sheet winding rod 10a and old sheet winding rod 10b can be used without particular limitation as long as they can be easily attached and detached.

Next, a bed 40 according to an embodiment of the present invention will be described. 9 is a schematic perspective view of the bed 40 of the present embodiment, FIG. 10 is a schematic perspective view of the bed-side sheet engaging / disengaging means 60A, and FIG. 9 to 11
As shown in FIG. 5, the bed 40 of the present embodiment has a pair of front and rear bed-side sheet engaging / disengaging means 60A, 60B inside a bed body 50.
Is provided, this pair of bed side sheet engaging and disengaging means 60A,
60B can move up and down freely. The pair of bed side sheet engaging / disengaging means 60A, 60B are connected by a connecting rod 70.

The bed body 50 is a known device, and comprises a front plate 51, a rear plate 52, and a pair of side plates 53, 53.
1. A bed spring S (not shown) is placed on a portion surrounded by the rear plate 52 and the side plates 53, 53. The rear plate 52 of the bed body 50 is formed with a hole 54 for a lifting handle, which will be described later. The reason will be described later.

Next, a pair of front and rear bed side sheet engaging / disengaging means 60A and 60B which are features of the bed 40 of the present embodiment will be described. This pair of bed side sheet engaging / disengaging means 60A, 60
B are substantially similar to each other, and
A will be described on behalf of A. Bed side sheet engaging and disengaging means 60B
The description of the reference numerals of the components of the present embodiment is made by replacing "A" at the end of the reference numerals of the components of the bed-side sheet engaging / disengaging means 60A with "B". This bed-side sheet engaging / disengaging means 60A is detachable from the sheet 30 described later. The bed-side sheet engaging and disengaging means 60A includes a pair of support plates 65A, 65A, an L-shaped crank 61A, a cylindrical collar 66A, and four sheet pulling hooks 80A. The pair of left and right support plates 65A is fixed to the front plate 51 of the bed body 50. An L-shaped crank 61A is swingably supported and mounted between the pair of left and right support plates 65A. 41A is a partition plate attached to the front and rear of the bed body 50. This partition 41
A is for separating the bed spring S or the like from the pair of bed side sheet engaging / disengaging means 60A, 60B.

The L-shaped crank 61A has a swing shaft 62A and 4
It is composed of a book arm 63A and a bracket 64A. The swing shaft 62A is rotatably mounted between the pair of left and right support plates 65A, 65A. A bracket 64A extending downward is attached to the center of the swing shaft 62A. Four arms 63A are attached to the swinging shaft 62A at regular intervals along the longitudinal direction of the swinging shaft 62A toward the front plate 51 perpendicular to the bracket 64A. A sheet pulling hook 80A is swingably attached to the tip of each of the four arms 63A so as to be vertically upward. The sheet pulling hook 80A has a hook at an upper end, and a trunk is supported by a hook guide 83A. The base end of the body of the sheet pulling hook 80A is pivotally attached to an arm 63A of an L-shaped crank 61A. With this configuration, the bracket
When the lower end of 64A moves forward and backward, the L-shaped crank 61A swings about the swing shaft 62A as a pivot. Therefore, all the sheet pulling hooks 80A can be moved up and down.
At the lower end of the bracket 64A of the L-shaped crank 61A, a cylindrical collar 66A is fixed horizontally.
The hollow portion of the collar 66A is formed with a female thread, the reason for which will be described later.

The connecting rod 70 has a right-hand thread 72A and a left-hand thread 72B (not shown) at both ends of one shaft 71. The right-hand thread 72A has a right-hand thread and the left-hand thread
72B has a left-hand thread. The right-hand thread portion 72A of the connecting rod 70 is screwed into the hollow portion of the collar 66A of the bed-side sheet engaging / disengaging means 60A. Although not shown, left-hand thread 72B
Is screwed into the hollow portion of the collar 66B of the bed-side sheet engaging and disengaging means 60B. A hook elevating handle 73 is attached to one end of the shaft 71 through a handle hole 54.

With this configuration, the hook elevating handle 73 is provided.
Is rotated forward, the shaft 71 of the connecting rod 70 rotates. The right threaded portion 72A of the shaft 71 is screwed into the hollow portion of the collar 66A of the bed side sheet engaging / disengaging means 60A.
Moves (to the right in the figure). For this reason, L-shaped crank
61A swings, and sheet pulling hook 80A descends. On the other hand, the left-hand thread 72B of the connecting rod 70 is
Since the collar 66B is screwed into the hollow portion of the collar 66B, the collar 66B moves (to the left in the figure). Therefore, the L-shaped crank 61B swings, and the sheet pulling hook 80B descends. In other words, when the hook lifting handle 73 is rotated forward,
The front and rear sheet pulling hooks 80A and 80B are both lowered.

When the hook lifting handle 73 is reversed, the shaft 71 of the connecting rod 70 is reversed around its own axis. The right-hand thread portion 72A of the shaft 71 is screwed into the hollow portion of the collar 66A of the bed-side sheet engaging / disengaging means 60A, so that the collar 66A moves (to the left in the figure). Therefore, the L-shaped crank 61
A swings, and the sheet pulling hook 80A rises. On the other hand, the left-hand thread 72B of the connecting rod 70 is
Since the collar 66B is screwed into the hollow portion of the collar 66B, the collar 66B moves (to the right in the figure). As a result, the L-shaped crank 61B swings, and the sheet pulling hook 80B rises. In other words, when the hook lifting handle 73 is reversed,
The front and rear sheet pulling hooks 80A and 80B both rise. Note that the hook lifting / lowering handle 73 in the present embodiment is used.
Are clockwise and counterclockwise, respectively. Furthermore, the mechanism for pulling both edge portions of the sheet 30 is not limited to raising and lowering the bed-side sheet engaging / disengaging means 60A and 60B, and may be capable of tensioning the sheet 30. A configuration can be adopted.

Before describing the operation of the bed 40, first, a sheet 30 suitable for use in the sheet changing device 1 of the present embodiment will be described. FIG. 5 is a plan view of the sheet 30A of the first example,
FIG. 6 is a plan view of another example of the sheet 30B of the first example. As shown in FIG. 5, the sheets 30A are rectangular mats 31.
In addition, sheet-side engaging / disengaging means are provided at both front and rear edge portions in the longitudinal direction of the mat 31. As an example of the sheet-side engaging and disengaging means, in the figure, a plurality of loops 33 each having an annular string attached to both front and rear edges in the longitudinal direction of the bedsheet 31 are shown. The plurality of wheels 33 include a pair of new sheet winding rods and old sheet winding rods 10a and 10b shown in FIG.
The pair of bed-side sheet engaging / disengaging means 60A, which is detachable in relation to the plurality of projections 16a, 16b of the rod-side sheet engaging / disengaging means 15a, 15b, respectively, and which is a pair of bed-side sheet engaging / disengaging means 60A, It can be disengaged from the 60B. As shown in FIG. 5, the plurality of loops 33 are located inside the both ends in the longitudinal direction of the bed sheet 31, correspond to the plurality of projections 16a of the rod-side sheet engaging / disengaging means 15a, and include the bed-side sheet engaging / disengaging means.
At positions corresponding to 60A and 60B, for example, sewing is performed with a thread. As shown in FIG. 6, a plurality of loops 33 are provided at both ends in the longitudinal direction of the bedsheet 31 and correspond to the plurality of projections 16a of the rod-side sheet engaging and disengaging means 15a, and the bed-side sheet engaging and disengaging means 60A. , 60B may be sewn, for example, with a thread. In this case, the bed 31 can be shortened, and the material cost is low, which is preferable. The sheet-side engaging / disengaging means is detachable from the pair of new sheet winding rods and the old sheet winding rods 10a, 10b, and is associated with a pair of bed-side sheet engaging / disengaging means 60A, 60B before and after the bed 40. As long as it is detachable, not only the plurality of wheels 33 but also various ones can be adopted.

FIG. 7 is a plan view of a sheet 30C of a second example, and FIG. 8 is a plan view of another example of a sheet 30D of the second example. FIG.
As shown in the figure, the sheet 30C of the second example is the sheet of the first example.
A bath towel T is detachably attached to a central portion of a bed 31 of the sheet 30B, for example, via a sheet fastener. At the four corners on one side of the bath towel T,
One support sheet of the planar fastener is stuck,
The other support sheet of the sheet fastener is adhered to a central portion of the sheet 31 of the sheet 30C at a position corresponding to the support sheet. In the case of the sheet 30C of the second example, not only the sheet 30C can be replaced with a new sheet but also a new bath towel T at the same time is preferable.
As shown in FIG. 8, a bed sheet P may be used instead of the bath towel T. In this case, not only the sheets 30D are replaced with new sheets, but also a new sheet
It is preferable because it can be replaced with

Next, the operation of the bed-side sheet engaging / disengaging means 60A, 60B of the bed 40 will be described. FIG. 12 is a view for explaining the operation of the bed-side sheet engaging / disengaging means 60A, 60B. First,
As shown in FIG. 12 (A), the hook lifting / lowering handle 73 (not shown) is reversed so that the bed-side sheet engaging / disengaging means 60A,
Raise 60B. This bed side sheet engaging and disengaging means 60A,
A pair of front and rear wheels 33, 33 of the sheet 30 are engaged with the sheet pulling hooks 80A, 80B of the sheet 60B. Similarly, for the other waterproof sheet 90, a pair of front and rear wheels of the sheet 90 are engaged with the sheet pulling hooks 80A and 80B. The waterproof sheet 90 is for preventing the futon M from being caught in the casing 2 of the sheet changing device 1 when the sheet 30 is wound up, and for preventing sewage from reaching the futon M. The waterproof sheet 90 may be substantially the same as the sheet 30; however, a sheet having good air permeability and a waterproof material, for example, a sheet of cotton cloth or the like coated with a waterproof resin such as polyurethane is preferable. is there. Then, FIG.
As shown in (5), the hook lifting handle 73 (not shown) is rotated forward to lower the sheet pulling hooks 80A, 80B of the bed-side sheet engaging and disengaging means 60A, 60B. The sheets 30 and the waterproof sheets 90 are pulled in the front-rear direction to form pins. In particular, in the case of the sheet 30A, as shown in FIG. 12C, a pair of front and rear wheels 33, 33 of the sheet 30A and a pair of front and rear wheels of the waterproof sheet 90 are connected to the bed-side sheet engaging / disengaging means 60A,
It is preferable to remove the sheets 30A from the sheet pulling hooks 80A, 80B of the 60B and to insert the surplus sheets 30A between the futon M and the bed spring S because they do not become an obstacle.

Next, a sheet exchanging operation using the sheet exchanging tool 1, the bed 40 and the sheets 30 of the present embodiment will be described. FIGS. 13 and 14 are explanatory views of the use of the sheet changing tool 1, the bed 40 and the sheets 30 of the present embodiment. Of the sheets 30, old and dirty sheets will be referred to as old sheets 30d, and new and clean sheets will be referred to as new sheets 30n. FIG.
As shown in FIG. 3 (A), a waterproof sheet 90 and an old sheet 30d are sequentially spread on the futon M, and a person lies on the old sheet 30d. First, the hook lifting handle 73 of the bed 40 (not shown) is reversed, and the pair of bed-side sheet engaging / disengaging means 60A, 60B is provided with a sheet pulling hook 80A.
, Raise the 80B. Then, the front and rear wheels of the waterproof sheet 90 are engaged with the sheet pulling hooks 80A and 80B, respectively. One wheel 33 of the old sheet 30d is engaged with the sheet pulling hook 80A, and the other wheel 33 is connected to the sheet pulling hook 80B.
Do not get involved. In this state, the hook elevating handle 73 is again
, The sheets pulling hooks 80A and 80B are lowered, and the waterproof sheets 90 are tightened. In the figure, the foot-side wheel 33 is removed, and the head-side wheel 33 is attached to the sheet pulling hook 80.
A, but remove the head-side wheel 33 and move it to the foot-side wheel 33.
May be engaged with the sheet pulling hook 80B.

In preparation for replacing the old sheets 30d with new sheets 30n, as shown in FIG.
n is wound around the sheet changing device 1. A procedure for winding the new sheet 30n around the sheet changing tool 1 will be described. First, the new sheet 30n is extended, and the ring 33 of the new sheet 30n is engaged with the rod-side sheet engaging / disengaging means 15a of the new sheet winding rod 10a of the sheet changing tool 1. Not shown, rotating handle
The projection 21 of 20 is engaged with the handle hole 14a of the new sheet winding rod 10a, and the rotating handle 20 is mounted on the new sheet winding rod 10a. When the handle 22 of the rotary handle 20 is rotated, the new sheet 30n is wound around the new sheet winding rod 10a. Rotate the rotating handle 20 and all new sheets 30n
Is wound on a new sheet winding rod 10a. The rotation handle 20 is inserted through the handle hole 14a of the new sheet take-up rod 10a.
, And remove the rotating handle 20 from the new sheet winding rod 10a.

Next, as shown in FIG. 13B, the remaining wheel 33 of the new sheet 30n wound around the sheet changing device 1 is used as a sheet pulling hook 80B of the bed-side sheet engaging / disengaging means 60B.
To hang. Further, the loop 33 of the old sheet 30d is engaged with the rod-side sheet engaging / disengaging means 15b of the old sheet winding rod 10b of the sheet changing tool 1. Although not shown, the projection 21 of the rotating handle 20 is engaged with the handle hole 14b of the old sheet winding rod 10b, and the rotating handle 20 is mounted on the old sheet winding rod 10b. Then, the handle 22 of the rotating handle 20 is grasped and the rotating handle 20 is rotated.

Since the old sheet winding rod 10b rotates, the old sheet 30d is wound on the old sheet winding rod 10b. The old sheet 30d is wound up, and the sheet changing device 1 is moved forward. When the sheet changing tool 1 is moved forward,
The new sheet 30n that has been wound on the new sheet winding rod 10a of the sheet changing tool 1 is fed out. Since the waterproof sheet 90 is stretched tight, the sheet changing device 1 can be smoothly advanced without involving the futon M or the like in the casing 2 of the sheet changing device 1. When the rotating handle 20 is rotated, the old sheet 30d is wound by the old sheet winding rod 10b, and the new sheet 30n is fed out from the new sheet winding rod 10a. In the figure, the old sheets 30d are sequentially replaced with the new sheets 30n in the direction from the foot to the head of the person.

[0024] As shown in FIG.
When the sheet changing tool 1 is moved to the head side of the person while rotating 20, the new sheet 30n is laid instead of the old sheet 30d. In this state, as shown in FIG. 14C, almost all old sheets 30d are wound on the old sheet winding rod 10b of the sheet changing tool 1, and almost all of the old sheets 30d are wound on the new sheet winding rod 10a. A new sheet 30n has been delivered. The new sheet winding rod 10a is moved from the rod side sheet engaging / disengaging means 15a to the new sheet 30.
Remove the n wheel 33. Then, the rotating handle 20 is rotated to wind up all the old sheets 30d that have been left slightly. The wheel 33 of the old sheet 30d is detached from the sheet pulling hook 80A of the bed side sheet engaging and disengaging means 60A. Handle for lifting the hook
73 is reversed, and the sheet pulling hooks 80A, 80B of the bed side sheet engaging and disengaging means 60A, 60B are raised. And
As shown in FIG. 14 (B), the wheel 33 of the new sheet 30n is engaged with the sheet pulling hook 80A of the bed side sheet engaging and disengaging means 60A. Then, although not shown, the hook lifting / lowering handle 73 is rotated forward and the pair of front and rear sheet pulling hooks 80A,
Lower 80B together. For this reason, there is an effect that the new sheet 30n can be tightened on the futon M.

Next, a sheet changing tool according to a second embodiment will be described. FIG. 15 is a front view of another embodiment of the new sheet winding rod 10a, and FIG. 16 is a rear view of the sheet 30E. As shown in FIG. 15, the sheet changing tool according to the second embodiment is different from the sheet-sheet winding rod 10a, 10b in that the sheet-sheet engaging and disengaging means 15a is replaced with the projections 16a, 16b. In addition, the support sheets 17a and 17b of the planar fastener are used. Old sheet winding rod 10b is new sheet winding rod 10a
The description is omitted because it is substantially the same. In this case, FIG.
As shown in FIG. 6, instead of the ring 33, a sheet 30E to which the other support sheet 34 of a sheet fastener which can be detachably attached to the support sheets 17a and 17b is used instead of the ring 33 at the front and rear end edges of the cover sheet 31. Further, a bed side sheet engaging / disengaging means 60 of the bed 40 is provided.
A, 60B for sheet pulling hooks 80A, 80B, 30
The support sheet of the sheet fastener that is detachable from the support sheet 34 of E is replaced with a bar or the like attached to the tip. In addition, the rod-side sheet-side engaging / disengaging means 15a, 15b of the new sheet winding rod and the old sheet winding rod 10a, 10b are not only the protrusions 16 and the support sheet 17 of the sheet fastener, but also the both ends of the sheet 30. As long as it can be disengaged from the sheet side disengaging means, various types can be adopted. Furthermore, various types of bed side sheet engaging and disengaging means 60A and 60B may be adopted as long as they can be freely disengaged from the sheet side engaging and disengaging means at both ends of the sheet 30.

As described above, by using the sheet changing tool 1, the bed 40, and the sheets 30 of the present embodiment, the sheets can be easily changed at any time by a simple operation alone.

[0027]

According to the sheet changing device of the first aspect, the sheet can be easily changed by a simple operation at any time by a single person.
And use the old sheets that have become dirty as whole sheets
Rewind and roll new sheets from the new sheet winding rod
You can put out the old sheet and the whole sheet
Can be replaced with According to the sheet changing device of the second aspect, the new sheet unwound from the new sheet winding rod and the old sheet
Old sheets wound on the sheet winding rod come into contact with each other
Not so sanitary. According to the bed of the third aspect, since the new sheets can be taut, the new sheets can be spread neatly on the futon.

[Brief description of the drawings]

FIG. 1 is an explanatory view according to a first embodiment of a sheet changing tool of the present invention, in which (A) is a side view and (B) is a plan view.

FIG. 2 is a side sectional view of the sheet changing device of the first embodiment.

FIG. 3 is a partial plan view of the sheet changing device of the first embodiment with a rotation handle removed.

4A and 4B are explanatory views of a new sheet winding rod, wherein FIG. 4A is a side view, and FIG. 4X is an enlarged view of a portion X in FIG.

FIG. 5 is a plan view of the sheet according to the first embodiment.

FIG. 6 is a plan view of a sheet according to another example of the first embodiment.

FIG. 7 is a plan view of a sheet according to a second embodiment.

FIG. 8 is a plan view of a sheet according to another example of the second embodiment.

FIG. 9 is a schematic perspective view according to an embodiment of the bed 40 of the present invention.

FIG. 10 is a schematic perspective view of a bed-side sheet engaging and disengaging means 60A.

FIG. 11 is a front sectional view of a bed.

FIG. 12 is an explanatory diagram of the operation of the bed.

FIG. 13 is a diagram illustrating the use of the sheet changing tool and the bed according to the embodiment.

FIG. 14 is a diagram illustrating the use of the sheet changing tool and the bed according to the present embodiment.

FIG. 15 is a front view of a new sheet winding rod in the sheet changing tool of the second embodiment.

FIG. 16 is a plan view of an example of a sheet corresponding to the sheet replacement tool of the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sheet exchange tool 2 Casing 2a Stick case 2b Stick case 10a New sheet winding rod 10b Old sheet winding rod 15a Rod side sheet engaging and disengaging means 15b Rod side sheet engaging and disengaging means 20 Rotating handle 30A Sheet 30B Sheet 30C Sheet 30D Sheet 30n New sheet 30d Old sheet 40 Bed 60A Bed side sheet engaging and disengaging means 60B Bed side sheet engaging and disengaging means

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A47C 21/00 A47C 21/02 A47G 9/02 A61G 7/05

Claims (3)

(57) [Claims] (1) At both ends in the longitudinal direction of the mat,
A container for replacing old sheets with new wheels with new sheets
A jig for disengaging the loop of the old sheets on the roll surface.
An old sheet winding on which a sheet is wound and the old sheet is wound up
A bar and a protrusion for disengaging the new sheet loop on the roll
An old sheet is wound on the old sheet winding rod.
A new sheet volume where new sheets are fed out at the same time
The take-up rod and the pair of old and new sheet take-up rods
They are also rotatably mounted, sleeping in bed and bed
A thin casing that can be moved between the sheet take-up rod and the sheet take-up rod .
Is, sheets exchange device, characterized in that ing from the times <br/> rotation handle for rotating each sheeting roll bar in its axial around. 2. A pair of old sheet winding rods and a new sheet winding rod are arranged in parallel with each other, and a winding direction of old sheets wound on the old sheet winding rod.
How to unwind new sheets unwound from the new sheet winding rod
Direction and the new sheet and the old sheet
2. The sheet changing device according to claim 1, wherein the sheets do not contact each other . 3. A bed body on which a bed spring is placed, a front plate and a rear plate of the bed body, and the bed spring.
Is provided in each gap with
Are paired with a pair of front and rear sheet pulling hooks having an inverted J-shape, and the pair of front and rear sheet pulling hooks are tuned up and down.
Base, characterized by comprising a descending make hook lifting means
Good .