JP6715619B2 - Mattress and bunk equipment - Google Patents

Description

The present invention relates to mattresses and bed devices.

The static electricity generated by the friction between the sheets and the mattress during the exchange of the sheets may be discharged to give an operator discomfort. In addition, the sheets or the mattress may adsorb dust when charged with static electricity, thereby deteriorating the hygienic condition. Patent Document 1 discloses a bed (a bed apparatus main body) including such a discharge member that discharges static electricity (for example, Patent Document 1).

Registered Utility Model No. 3007443

In general, a bed used in a medical or nursing care field has a plurality of components that are complicatedly combined because a drive unit such as a lifting mechanism is provided. When the mattress is destaticized via the bed, it is necessary to ground each component to the same potential. For this reason, there has been a problem that a bed provided with a countermeasure against static electricity becomes expensive.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a mattress that can eliminate static electricity generated in a mattress or sheets.

In order to solve the above problems, the present invention proposes the following means.
(1) A mattress according to one aspect of the present invention includes a mattress body; and a groundable conductive member that is in contact with the mattress body.

In the mattress according to the above aspect, a conductive member as a charge removing unit extends directly from the mattress body. Therefore, by grounding the conductive member, the static electricity charged in the mattress body can be directly removed. Further, when the sheets are charged with static electricity, the static electricity can be removed via the mattress body.

(2) In the mattress according to (1), the mattress main body includes a cushion member and a cover that covers the cushion member and has a sewn portion, and the conductive member has the cover at the sewn portion. It may be fixed to the structure.

With this configuration, the conductive member can be fixed to the mattress body by sewing, and the reliability of fixing the conductive member can be increased. In addition, since the conductive member can be fixed in the same process as the conventional mattress manufacturing process, an increase in manufacturing cost can be suppressed.

(3) In the mattress according to (1) or (2) above, the conductive member is fixed to a portion of the mattress body exposed from the sheets, with the sheets being attached to the mattress body. The configuration may be adopted.

According to this configuration, the fixing portion that fixes the conductive member does not hinder the work of folding the sheets. Therefore, even when the conductive member is provided, the ease of the work of replacing the sheets can be improved.

(4) The mattress according to any one of (1) to (3) above may be configured to include a plurality of conductive members that are in contact with the mattress body at different locations.

According to this configuration, the plurality of conductive members are in contact with the main body of the mattress at different places. Therefore, for example, depending on the arrangement of the mattress and the ground wire, use a suitable conductive member to connect to the ground wire. And so on. Therefore, it is possible to provide a mattress capable of eliminating static electricity regardless of the location.

(5) In the mattress according to any one of (1) to (4) above, the conductive member may be a belt-shaped conductive elastomer.

According to this configuration, since the conductive member is the conductive elastomer, the flexibility is increased and the handling is facilitated as compared with the case where the conductive member is made of metal. Further, by adopting the conductive elastomer as the conductive member, not only the conductive resistance value can be lowered, but also a mattress that can be washed in whole can be provided. Furthermore, by forming the conductive member into a band shape, it is possible to sufficiently secure the area of the portion for fixing, and to improve the reliability of fixing.

(6) A bed apparatus according to one aspect of the present invention includes the mattress according to any one of (1) to (5) above; and a bed apparatus main body that supports the mattress.

According to this configuration, it is possible to provide a bed device that can eliminate static electricity without depending on the configuration of the bed device body.

ADVANTAGE OF THE INVENTION According to this invention, the mattress which can remove the static electricity which a mattress or a sheet generate|occur|produced can be provided.

FIG. 3 is a perspective view of a bed device including the mattress according to the first embodiment. The perspective view of the mattress of 1st Embodiment. Sectional drawing in the use condition of the mattress of 1st Embodiment. The perspective view of the mattress of 2nd Embodiment. Sectional drawing in the use condition of the mattress of 2nd Embodiment.

The mattress according to the embodiment will be described below with reference to the drawings.
In addition, in each drawing, in order to make a feature easy to understand, the feature part may be expanded and shown for convenience, and the dimensional ratio of each component may not necessarily be the same as it is.

<First Embodiment>
(Sleeper device)
FIG. 1 is a perspective view of a bed device 80 according to the first embodiment.
The bed apparatus 80 of the present embodiment includes the mattress 10 and the bed apparatus main body 60 that supports the mattress 10 on the upper surface 60a.

The bed apparatus main body 60 is a so-called electric bed that can raise and lower the bed section 61 by using electric power as a power source. Such a bed device body 60 is used, for example, in a medical environment (including a nursing care environment).

In FIG. 1, an arrow H indicates a head side when a person (user) sleeps, and an arrow F indicates a foot side when a person sleeps. In the following description, the horizontal direction orthogonal to the front-rear direction (second direction), which is the direction of arrows H and F, may be referred to as the left-right direction (first direction). The front-rear direction and the left-right direction are both directions along the horizontal direction and are directions orthogonal to each other.

The couch device body 60 includes a couch 61 that supports a user (for example, a patient and a cared person), a base 70 having four legs 73, and a couch 61 and the base 70 between the couch 61 and the vertical direction. An elevating device 65 for positioning and elevating the bed is provided, and boards 64 arranged in front of and behind the bed apparatus main body 60. The bed apparatus body 60 has a rectangular shape in plan view. The couch device body 60 is longer in the front-back direction than in the left-right direction when seen in a plan view.

The bed 61 has a plurality of bed bottoms 63. The mattress 10 covered with the sheets 20 is mounted on the upper surface 60 a of the bed bottom 63. A plurality of bed bottoms 63 are arranged in the front-rear direction according to each part of the human body. Some of the bed bottoms 63 are provided with mattress stoppers 63a that project upward at the left and right edges. The mattress stopper 63a prevents the mattress 10 mounted on the bed bottom 63 from shifting in the left-right direction.
The lifting device 65 includes a plurality of link mechanisms and a drive device. The lifting device 65 lifts and lowers the bed 61 with respect to the base 70.

(mattress)
FIG. 2 is a perspective view of the mattress 10 of this embodiment. The mattress 10 includes a mattress body 1 and a conductive strip (conductive member, conductive wire) 2 fixed to the mattress body 1. The conductive strip 2 is fixed near the corner of the mattress body 1 on the long side of the peripheral edge 1c of the mattress body 1 and extends parallel to the short side.

(Mattress body)
The mattress body 1 has a rectangular shape in plan view. The mattress body 1 is longer in the front-rear direction than in the left-right direction when seen in a plan view.
The mattress body 1 includes a plate-shaped cushion member 7 and a cloth cover 8 that covers the cushion member 7. Further, the mattress main body 1 includes an upper surface 1a which is a surface on which the user lies, a lower surface 1b facing the opposite side of the upper surface 1a, and a peripheral edge portion 1c which connects the upper surface 1a and the lower surface 1b and extends in the vertical direction. Have.

The cushion member 7 is configured by laminating a plurality of materials having different hardness, for example.
The cover 8 has an upper cover cloth 8a that covers the upper surface side of the cushion member 7 and a lower cover cloth 8b that covers the lower surface side. The upper cover cloth 8a and the lower cover cloth 8b are continuous cloths. The upper cover cloth 8a and the lower cover cloth 8b are sewn together and connected to each other at a seam portion 6 formed along the peripheral edge portion 1c of the mattress body 1. Therefore, the cover 8 has the stitched portion 6.

(Conductive strip)
The conductive strip 2 is a conductive member and can be grounded. Here, a case will be described as an example where a strip-shaped conductive strip 2 having flexibility and conductivity is adopted as the conductive member. However, the structure of the conductive member is not limited as long as it can be grounded.

The conductive strip (conductive member) 2 is made of a flexible conductive material. The conductive strip 2 is preferably made of a flexible material so as to be easily routed to the ground wire (reference potential point). A conductive elastomer can be used as a material of the conductive strip 2. The conductive elastomer can be manufactured by mixing a conductive powder (for example, graphite) into a base material made of an elastomer material such as rubber. By adopting a conductive elastomer as the conductive member, it is possible to reduce the conductive resistance value. In addition, by adopting a conductive elastomer as the conductive member, it is possible to provide the mattress 10 that can be washed in its entirety. Further, the conductive member may be a base material made of a resin woven fabric and woven with conductive threads such as metal wires.

The conductive strip 2 is in contact with the mattress body 1. The conductive strip 2 is fixed to the mattress body 1 at one end in the longitudinal direction and is grounded at the other end to discharge static electricity charged in the mattress body 1. As a grounding method, it is preferable to electrically connect the conductive strip 2 to a grounding wire or a static elimination mat 3 (see FIG. 1) which is grounded and grounded. Further, when it is difficult to connect to the ground wire (or the static elimination mat 3) connected to the second value, the conductive strip 2 is connected to a substance having a large electrostatic capacitance (for example, a furniture made of metal in the vicinity). As a result, a certain effect of suppressing discharge can be achieved. The electrostatic voltage is inversely proportional to the capacitance. Therefore, by increasing the electrostatic capacity and lowering the electrostatic voltage, it is possible to suppress the electric discharge by lowering the electrostatic voltage lower than the voltage leading to the electric discharge. Further, the conductive strip 2 may be attached to the bed apparatus body 60 at one end in the longitudinal direction. In this case, the conductive strip 2 may be fixed to the bed bottom 63 of the bed apparatus main body 60 via a conductive clip. Further, the conductive strip 2 may be fixed by being wound around a fixing portion provided on a side portion of the bed bottom 63 of the bed apparatus main body 60.

According to the present embodiment, the conductive strip 2 is sewn together with the upper cover cloth 8a and the lower cover cloth 8b at the sewn portion 6 and fixed to the cover 8. As a result, the conductive strip 2 is in sufficient contact with the surface of the mattress body 1 (that is, the cover 8), and the static electricity charged in the mattress body 1 can be guided to the ground.

Further, according to the present embodiment, since the conductive strip 2 is sewn and connected, the reliability of fixing the conductive strip 2 can be increased. Further, in the same process as the conventional mattress manufacturing process, the conductive strip can be fixed to the mattress body 1, and an increase in manufacturing cost as compared with the conventional one can be suppressed. Since the conductive strip 2 of the present embodiment has a strip shape, it is possible to sew the suture portion 6 with a sufficient length.

(Production method)
An example of a method for manufacturing the mattress 10 of this embodiment will be described.
First, an upper cover cloth 8a, a lower cover cloth 8b, and a conductive strip that are cut into a predetermined size are prepared.
Then, the end portions of the conductive strips are sandwiched between the upper cover cloth 8a and the lower cover cloth 8b and overlapped with each other, and the outer peripheral edge portion is sewn and then turned over. As a result, the cover 8 to which the conductive strip 2 is fixed is manufactured. In this state, the cover 8 has a bag shape. A slide fastener may be provided in the opening of the cover 8.
Next, the cushion member 7 is covered with the cover 8, and the opening of the cover 8 is closed.
The mattress 10 can be manufactured through the above steps.

(how to use)
FIG. 3 is a cross-sectional view of the mattress 10 in use. As shown in FIG. 3, the mattress 10 is mounted on the upper surface 60 a of the bed apparatus body 60, and is used with the mattress body 1 covered with the sheets 20.

The sheet 20 covers the mattress body 1 from the upper side, and holds the outer peripheral edge 20a between the lower surface 1b of the mattress body 1 and the upper surface 60a of the bed apparatus body 60 so as not to shift with respect to the mattress body 1. .. That is, the sheet 20 covers the upper surface 1a of the mattress body 1, the peripheral edge portion 1c, and the vicinity of the outer edge of the lower surface 1b. The lower surface 1b of the mattress body 1 is exposed inside the outer peripheral end 20a of the sheet 20.

The conductive strip 2 is folded into the lower surface 1b of the mattress body 1 together with the outer peripheral end 20a of the sheet 20. Further, the conductive strip 2 is folded back from the outer peripheral end 20 a of the sheet 20, passes under the sheet 20, and extends outward from the edge of the mattress body 1. As a result, the conductive strip 2 is in a state of sandwiching the sheet 20 from above and below on the lower surface 1b of the mattress body 1, and a wide contact area between the conductive strip 2 and the sheet 20 is secured. The sheet 20 may have a local insulating portion formed on its surface due to adhered dirt or deterioration over time. According to this embodiment, by ensuring a large contact area between the conductive strip 2 and the sheet 20, the static electricity charged on the sheet 20 can be reliably guided to the conductive strip 2.

According to this embodiment, the conductive strip 2 can be brought into direct contact with the charged mattress body 1 or the sheet 20 to eliminate static electricity. Therefore, as compared with the conventional technique in which static elimination is performed via the bed (bed apparatus main body), it is possible to realize static elimination that is cheaper and more reliable.

<Second Embodiment>
Next, the mattress 110 of the second embodiment will be described. The same components as those in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted.

FIG. 4 is a perspective view of the mattress 110 of the second embodiment. Further, FIG. 5 is a sectional view of the mattress 110 in use.
The mattress 110 includes a mattress main body 101, and two conductive strips (conductive members) 102 extending from a peripheral edge portion 101c of the mattress main body 101.

The conductive strip 102 is in contact with the mattress body 101. Further, the conductive strip 102 is fixed to the mattress body 101 at one end in the longitudinal direction and grounded at the other end to discharge static electricity charged in the mattress body 101. The conductive strip 102 has the same configuration as the conductive strip 2 of the first embodiment described above.

The two conductive strips 102 are arranged in rotational symmetry of 180° with respect to the center of the mattress body 101 in plan view. Therefore, when the bed apparatus main body 60 mounting the mattress 110 is arranged adjacent to the wall surface, the mattress 110 extends the conductive strip 102 from either one of the left and right edges and connects it to the ground wire. be able to. Although the mattress 110 of this embodiment has two conductive strips 102, it may have three or more. Of the plurality of conductive strips 102, those not used may be folded inward at the lower surface 101b of the mattress body 101.

The mattress body 101 has a cushion member 7, a cloth cover 8, and two fixing portions 108 that fix one ends of the two conductive strips 102 on the lower surface 101b.

The fixed portion 108 has a rectangular shape. Further, the fixing portion 108 is an adhesive sheet having an adhesive layer formed on one surface. Since the conductive strip 102 of the present embodiment is strip-shaped, it is possible to secure a sufficient bonding area with the fixing portion 108, and it is possible to increase the reliability of fixing. The shape and configuration of the fixed portion 108 are not limited to this embodiment. The fixing portion 108 may be a cloth whose outer edge is sewn to the cover 8 together with the conductive strip 102.

The fixing portion 108 is located inside by a first distance d1 from the long side 101d of the mattress body 101 and inside by a second distance d2 from the short side 101e.
In the present embodiment, the first distance d1 and the second distance d2 are longer than the folding length w of the sheet 20 on the lower surface 101b of the mattress body 101. That is, the conductive strip 2 is fixed to the portion of the mattress body 101 exposed from the sheets 20. Here, for ease of explanation, the folded length w of the sheet is assumed to be the same on the long side 101d side and the short side 101e side.

As shown in FIG. 5, the fixing portion 108 of the present embodiment is located inside the folding of the sheet 20 that covers the mattress body 101. As a result, the fixing portion 108 does not hinder the work of folding the sheets 20. Further, the conductive strip 102 directly contacts the sheet 20 folded on the upper surface, and the static electricity charged on the sheet 20 by the conductive strip 102 can be removed.

As another example of the arrangement of the fixing portion 108, the first distance d1 may be longer than the folding length w and the second distance d2 may be shorter than the folding length. In this case, in folding the sheet 20 on the side of the short side 101e, the worker makes the sheet 20 go under the conductive strip 102. As a result, the conductive strip 102 is sandwiched between the sheets 20 from above and below, and a wide contact area between the conductive strip 102 and the sheets 20 is ensured. Therefore, the static electricity charged on the sheet 20 can be surely guided by the conductive strip 102.

Although various embodiments of the present invention have been described above, the configurations and combinations thereof in each of the embodiments are examples, and addition, omission, substitution, and substitution of the configurations are within the scope not departing from the spirit of the present invention. Other changes are possible. The present invention is not limited to the embodiments.
For example, in the above embodiment, the conductive strips (conductive members) 2 and 102 extend to the long side of the mattress bodies 1 and 101, but may extend to the short side.
Further, in the above-described embodiment, the example in which the conductive strips 2 and 102 are fixed to the mattress main bodies 1 and 101 by stitching or bonding is described. However, the conductive strips 2 and 102 are not necessarily fixed directly to the mattress body as long as they are in contact with the mattress bodies 1 and 101. For example, in the mattress 110 of the second embodiment, the fixing portion 108 integrated with one end of the conductive strip 102 is not fixed to the mattress body 101, but between the mattress body 101 and the bed apparatus body 60. Alternatively, it may be sandwiched between the mattress body 101 and the sheets 20.

1, 101 mattress main body 1b, 101b lower surface 1c, 101c peripheral edge portion 2,102 conductive strip (conductive member)
6 Sutured portion 7 Cushion member 8 Covers 10, 110 Mattress 20 Sheet 60 Bed device main body 80 Bed device 108 Fixed part

Claims (5)

Mattress body;
A groundable conductive member in contact with the mattress body;
The conductive member is fixed to a portion of the mattress main body, which is exposed from the sheets and is near a corner portion on a long side of the mattress main body, in a state where the mattress main body is fitted with the sheets.
mattress. The mattress body has a cushion member, and a cover that covers the cushion member and has a suture portion,
The conductive member is fixed to the cover at the stitched portion,
The mattress according to claim 1. A plurality of the conductive members contacting the mattress body at different places,
The mattress according to claim 1 or 2 . The conductive member is a band-shaped conductive elastomer,
Mattress according to any one of claims 1-3. A mattress according to any one of claims 1 to 5 ;
A bed device body supporting the mattress;
Bed equipment.

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