JP5926878B1 - Sheet fasteners, sheet holding devices, mattresses, and beds - Google Patents

Abstract

The present invention provides a sheet fastener that can reduce labor for setting a sheet. A sheet fastener includes a first rotation axis AXa extending in one direction, a second rotation axis AXb extending at a distance from the first rotation axis AXa, and a first rotation axis AXa. The first sandwiching member 22 that can rotate, the second sandwiching member 24 that can rotate around the second rotation axis AXb, and the sheet ST in which the first sandwiching member 22 and the second sandwiching member 24 are pushed from the outside. A force generator that generates a force for rotating the first sandwiching member 22 and the second sandwiching member 24 about the first rotation axis AXa and the second rotation axis AXb, respectively, so as to be sandwiched. [Selection] Figure 2

Description

  The present invention relates to a sheet fastener, a sheet holding device, a mattress, and a bed.

Conventionally, in bed making, a sheet is set by inserting its end under a mattress.
Patent Document 1 describes a cover tool holder that reduces bed-making work. The cover tool holder has an insertion plate disposed between the bed base and the mat placed on the bed base, near or below the corner of the mat, and one end connected to the insertion plate. A connecting member and a clip that is positioned at the other end of the connecting member and removably holds a cover tool such as a sheet hung on the mat.

JP 2006-129997 A

Here, it is generally preferable that the labor for setting the sheets is further reduced.
An object of the present invention is to provide a sheet fastener, a sheet holding device, a mattress, and a bed in which labor for setting a sheet is reduced.

A sheet fastener according to a first aspect of the present invention that meets the above object includes a first rotating shaft extending in one direction,
A second rotating shaft extending at an interval from the first rotating shaft;
A first sandwiching member capable of rotating about the first rotation axis;
A second sandwiching member capable of rotating about the second rotation axis;
The first sandwiching member and the second sandwiching member are moved around the first rotation axis and the second sandwiching member, respectively, so that the first sandwiching member and the second sandwiching member sandwich the sheet pushed from the outside. A force generating unit that generates a force for rotating around the two rotation axes.

In the sheet fastener according to the first invention,
It is preferable that the front side of the first sandwiching member is in contact with the back side of the second sandwiching member.

In the sheet fastener according to the first invention,
The second rotating shaft may be disposed above the first rotating shaft.

In the sheet fastener according to the first invention,
A guide device may be further provided that guides the first holding member and the second holding member in a direction in which the sheet is pushed in and a direction opposite to the direction.

A sheet holding device according to a second invention that meets the above-described object includes a first member disposed between a mattress and a support that supports the mattress,
A second member extending upward from the first member;
And a sheet fastener according to a first invention fixed to the second member.

  A mattress according to a third aspect of the present invention that meets the above object includes the sheet fastener according to the first aspect of the present invention.

  The bed which concerns on the 4th invention in alignment with the said objective is equipped with the bed sheet fastener which concerns on 1st invention.

  According to the present invention, it is possible to provide a sheet fastener, a sheet holding device, a mattress, and a bed in which labor for setting a sheet is reduced.

It is explanatory drawing of the sheet fastener which concerns on the 1st Embodiment of this invention. It is structural drawing which shows the principal part of the bed sheet fastener. It is a front view of the sheet fastener. It is XX sectional drawing of the same sheet fastener shown in FIG. It is explanatory drawing which shows the state just before the sheet fastener hold | maintains a sheet. It is explanatory drawing of the fastener which concerns on the 2nd Embodiment of this invention, Comprising: It is a figure corresponding to XX sectional drawing of FIG. (A) is an external view of the bed sheet holding device according to the third embodiment of the present invention, and (B) is a side view of the bed to which the bed sheet holding device is attached as viewed from the foot side. It is a top view of the sheet fastener which concerns on the 4th Embodiment of this invention.

  Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention. It should be noted that in the drawing, illustration of parts not related to the description may be omitted.

[First Embodiment]
As shown in FIG. 1, the sheet fastener 10 according to the first exemplary embodiment of the present invention is incorporated in a side portion of a mattress 122 provided in a bed 12 installed in a hotel, for example. From the viewpoint of work efficiency for replacing the sheet ST (see FIG. 5), the sheet fastener 10 is preferably arranged at two positions on the left and right sides or the upper and lower sides of the user sleeping on the bed 12.
The sheet fastener 10 can pinch the sheet ST by sandwiching a part inside the edge of the sheet ST (for example, a part 100 to 500 mm inside from the edge).

  As shown in FIGS. 2 and 3, the sheet fastener 10 includes a lower sandwiching member (an example of a first sandwiching member) 22, a first shaft 26a, and a first torsion spring 28a. The sheet fastener 10 includes an upper sandwiching member (an example of a second sandwiching member) 24, a second shaft 26b, and a second torsion spring 28b.

  The lower sandwiching member 22 is a rectangular plate-like member extending in the left-right direction when viewed from the front (direction A). The lower sandwiching member 22 can rotate around the first rotation axis AXa extending in the horizontal direction (one direction), and as shown in FIG. 5, the sheet ST pushed together with the upper sandwiching member 24 from the outside (front side). Can be pinched. Note that “horizontal” as used herein is not strictly horizontal. That is, “horizontal” means that a manufacturing error is allowed in design and “substantially horizontal” (the same applies hereinafter). Specifically, for example, the first rotation axis AXa may be inclined from the horizontal line within a range of −10 degrees to +10 degrees.

Specifically, as shown in FIG. 4, the lower sandwiching member 22 includes a fixing portion 222 and a contact portion 224.
The lower portion of the fixing portion 222 is fixed to the first shaft 26a.
The lower part on the front side of the contact part 224 is fixed to the fixing part 222. A friction member 226 that comes into contact with the sheet ST pushed in from the front side (direction A) is provided at the upper part on the front side of the contact portion 224.

The first shaft 26 a is a round bar member that serves as the first rotation axis AXa of the lower sandwiching member 22. Both ends of the first shaft 26a are rotatably supported by the frame 30 (see FIG. 3). As described above, the first shaft 26 a is fixed along the longitudinal direction of the fixing portion 222 to the lower portion on the back side of the fixing portion 222 of the lower sandwiching member 22.
As shown in FIGS. 2 and 3, the first shaft 26a contacts the frame 30 so that the lower sandwiching member 22 does not jump out to the front side, and the direction Ra1 of the first shaft 26a (see FIG. 4). ) Is provided with a first stopper 32a.

  The first torsion spring 28 a is disposed at one end of the first shaft 26 a and can generate a force that rotates the lower sandwiching member 22 in a direction in contact with the upper sandwiching member 24. One end side of the first torsion spring 28 a is fixed to the first shaft 26 a, and the other end side is fixed to the frame 30.

The upper sandwiching member 24 is a rectangular plate-like member extending in the left-right direction when viewed from the front. The upper sandwiching member 24 is disposed above the first rotation axis AXa and can rotate around the second rotation axis AXb extending at a distance from the first rotation axis AXa.
As shown in FIG. 4, the vertical dimension Lb of the upper clamping member 24 is shorter than the vertical dimension La of the lower clamping member 22, and the lower clamping is provided on the back side of the upper clamping member 24. The front side of the member 22 contacts. That is, the upper sandwiching member 24 is disposed such that the lower portion thereof overlaps the upper portion of the lower sandwiching member 22 when viewed from the front (see FIG. 3).
A friction member 242 (see FIG. 4) is provided at the lower part of the back side of the upper sandwiching member 24. When the sheet ST (FIG. 5) is not present, the friction member 226 of the lower sandwiching member 22 comes into contact with the friction member 242.

The second shaft 26 b is a round bar-shaped member that serves as the second rotation axis AXb (see FIG. 2) of the upper sandwiching member 24. Both ends of the second shaft 26b are rotatably supported by the frame 30 (see FIG. 3). The second shaft 26b is fixed to the upper part on the back side of the upper sandwiching member 24 along the longitudinal direction.
As shown in FIGS. 2 and 3, the second shaft 26b is in contact with the frame 30 so that the upper sandwiching member 24 does not pop out from the front side, and the second shaft direction Rb1 (see FIG. 4). ) Is provided with a second stopper 32b for limiting the rotation amount.
If the second stopper 32b is provided, the first stopper 32a is not essential.

As shown in FIG. 2, the second torsion spring 28b is disposed at one end of the second shaft 26b, and rotates in a direction (direction Rb1 shown in FIG. 4) that projects the lower end of the upper sandwiching member 24 to the front side. The force to make can be generated. One end side of the second torsion spring 28 b is fixed to the second shaft 26 b, and the other end side is fixed to the frame 30.
As shown in FIG. 3, the second torsion spring 28b is preferably arranged on the opposite side to the first torsion spring 28a when the sheet fastener 10 is viewed from the front side.
The first torsion spring 28a and the second torsion spring 28b generate forces that rotate the lower sandwiching member 22 and the upper sandwiching member 24 about the first rotation axis AXa and the second rotation axis AXb, respectively. The force generation part which comprises is comprised. The force generator is not limited to the first torsion spring 28a and the second torsion spring 28b, and may have any configuration as long as it can generate a force that closes the lower sandwiching member 22 and the upper sandwiching member 24.

Next, the operation of the sheet fastener 10 will be described.
In a state where the lower sandwiching member 22 is in contact with the upper sandwiching member 24 (see FIG. 4), the sheet ST is pushed from the outside (from the direction A).

  When the sheet ST is pushed, the lower pinching member 22 and the upper pinching member 24 are pushed against the forces generated by the first torsion spring 28a and the second torsion spring 28b (see FIG. 2), respectively. 4 rotates in a direction Ra2 and a direction Rb2. When the lower sandwiching member 22 and the upper sandwiching member 24 rotate, a gap is formed between the lower sandwiching member 22 and the upper sandwiching member 24, and the sheet ST is inserted into this clearance.

After the sheet ST is inserted, the lower clamping member 22 and the upper clamping member 24 are closed in the direction Ra1 (direction Ra2 and direction Ra2) by the force generated by the first torsion spring 28a and the second torsion spring 28b shown in FIG. The sheet ST is rotated by the friction member 226 of the lower sandwiching member 22 and the friction member 242 of the upper sandwiching member 24 by rotating in the opposite direction) and the direction Rb1 (the direction opposite to the direction Rb2) (see FIG. 5). Is sandwiched in a folded state inside.
As a result, the sheet ST is held by the sheet fastener 10 and is prevented from slipping even if a person is placed on the mattress 122 (see FIG. 1).
Incidentally, when an operator who replaces the sheet ST grips the edge of the sheet ST and pulls it in the direction of the floor surface, the sheet ST is detached from the sheet fastener 10.

Thus, since the sheet fastener 10 can be fastened by simply pushing the sheet ST from the side of the mattress 122, labor for setting the sheet ST is reduced.
Further, according to the sheet fastener 10, the sheet ST is smaller in size than the conventional case where the end portion is inserted under the mattress 122 and the sheet is set.
In addition, when comparing the sheet fastener 10 with a sheet fastener that is fixed and one of the lower sandwiching member and the upper sandwiching member is not movable, the sheet fastener 10 has a better operational feeling. When the worker unconsciously pushes the sheet ST, the sheet ST can be easily held. Therefore, particularly in a hotel or hospital where a large number of sheets ST need to be replaced, the sheet fastener 10 can reduce the work time required for the replacement.

[Second Embodiment]
Subsequently, a sheet fastener 10a according to a second embodiment of the present invention will be described. About the same component as the sheet fastener 10 which concerns on 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

As shown in FIG. 6, the sheet fastener 10a is different from the sheet fastener 10 in the shapes of the lower sandwiching member 22a and the upper sandwiching member 24a.
The lower sandwiching member 22a is fixed to the first shaft 26a and can rotate about the first rotation axis AXa. The lower sandwiching member 22a has a first contact portion 33a extending from the upper end portion to the back side (thickness direction). A friction member 34a that comes into contact with the sheet ST is provided on the upper surface of the first contact portion 33a.
The upper sandwiching member 24a is fixed to the second shaft 26b and can rotate about the rotation axis AXb. The upper sandwiching member 24a has a second contact portion 33b extending from the lower end portion to the back surface side (thickness direction). A friction member 34b that contacts the sheet ST is provided on the lower surface of the second contact portion 33b.
The lower sandwiching member 22a and the upper sandwiching member 24a have substantially the same shape.
The sheet ST pushed from the outside is sandwiched and held by the friction member 34a of the lower sandwiching member 22a and the friction member 34b of the upper sandwiching member 24a.

[Third Embodiment]
Subsequently, a sheet holding device 40 according to a third embodiment of the present invention will be described.
Although the above-described sheet fastener 10 is built in the mattress 122, a sheet holding device 40 as shown in FIGS. 7A and 7B may be configured.
The sheet holding device 40 includes a sheet fastener 10, a first plate member 41, and a second plate member 42.

The first plate-like member (an example of the first member) 41 is a plate-like member disposed between the mattress 122 and the support body 124 that supports the mattress 122. The first plate-like member 41 is inserted from the direction B.
The second plate-like member (an example of the second member) 42 is a plate-like member that extends upward from the end of the first plate-like member 41 at the side portion of the mattress 122.
The sheet fastener 10 is fixed to the second plate member 42.

The sheet holding device 40 is installed by inserting the first plate-like member 41 between the mattress 122 and the support body 124 that supports the mattress 122.
Therefore, even if the bed sheet 10 is not built in the mattress 122 in the existing bed, labor for setting the sheet ST is reduced.
The sheet holding device may be configured by a sheet fastener 10 a instead of the sheet fastener 10.

[Fourth Embodiment]
Subsequently, a sheet fastener 50 according to a fourth embodiment of the present invention will be described. About the same component as the sheet fastener 10 which concerns on 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

The sheet fastener 50 is built in the side portion of the mattress 122 in the same manner as the sheet fastener 10.
As shown in FIG. 8, the sheet clamp 50 includes a lower sandwiching member 22 and an upper sandwiching member 24 in the direction A (insertion direction A) in which the sheet ST is pushed into both ends and the direction opposite to the insertion direction A, respectively. Is provided.
Each guide device 52 includes a support portion 522, a guide shaft 524, a first coil spring 526a, and a second coil spring 526b.
The support portion 522 is fixed to the frame 30 and guided by the guide shaft 524.
The guide shaft 524 can guide the support portion 522 in the insertion direction A and the direction opposite to the insertion direction A.

The first coil spring 526a has the guide shaft 524 inserted therein, and is disposed outside the support portion 522 (on the side where the sheet ST is inserted). One end portion of the first coil spring 526a is fixed to the support portion 522, and the other end portion is fixed to the frame.
The second coil spring 526b has a guide shaft 524 inserted therein and is disposed on the inner side of the support portion 522. One end portion of the second coil spring 526b is fixed to the support portion 522, and the other end portion is fixed to the frame.

In the sheet fastener 50, when the sheet ST is sandwiched, the support portion 522 can move in the insertion direction A or in the opposite direction according to the tensile force applied to the sheet ST. For example, when a person is placed on the mattress 122, a tensile force is applied to the sheet ST, and the support portion 522 moves in a direction opposite to the insertion direction A.
Therefore, since the change in the tensile force applied to the sheet ST is relieved, the sheet ST is prevented from being damaged.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and all changes in conditions and the like that do not depart from the gist are within the scope of the present invention.
The sheet fastener shown in each of the above embodiments may be built in the bed.

10, 10a Sheet fastener 12 Beds 22, 22a Lower pinching members 24, 24a Upper pinching member 26a First shaft 26b Second shaft 28a First torsion spring 28b Second torsion spring 30 Frame 32a First stopper 32b Second stopper 33a First contact portion 33b Second contact portions 34a, 34b Friction member 40 Sheet holding device 41 First plate member 42 Second plate member 50 Sheet fastener 52 Guide device ST Sheet 122 Mattress 124 Support body 222 Fixing portion 224 Contact portion 226, 242 Friction member 522 Support portion 524 Guide shaft 526a First coil spring 526b Second coil spring

Claims (7)

A first rotating shaft extending in one direction;
A second rotating shaft extending at an interval from the first rotating shaft;
A first sandwiching member capable of rotating about the first rotation axis;
A second sandwiching member capable of rotating about the second rotation axis;
The first sandwiching member and the second sandwiching member are moved around the first rotation axis and the second sandwiching member, respectively, so that the first sandwiching member and the second sandwiching member sandwich the sheet pushed from the outside. And a force generating section that generates a force for rotating the rotating shaft around the rotation axis. The sheet fastener according to claim 1,
A sheet fastener in which a front side of the first sandwiching member is in contact with a back side of the second sandwiching member. The sheet fastener according to claim 2,
A sheet fastener in which the second rotation shaft is disposed above the first rotation shaft. In the sheet fastener of any one of Claims 1-3,
A sheet fastener further comprising a guide device for guiding the first holding member and the second holding member in a direction in which the sheet is pushed in and a direction opposite to the direction. A first member disposed between the mattress and a support that supports the mattress;
A second member extending upward from the first member;
A sheet holding device comprising: the sheet fastener according to claim 1, which is fixed to the second member.   The mattress provided with the bed sheet fastener of any one of Claims 1-4. The bed provided with the bed sheet fastener of any one of Claims 1-4.