JP6628600B2 - Toilet backrest - Google Patents

Description

  The present invention relates to a backrest for a toilet.

  Patent Literature 1 discloses a toilet backrest disposed behind and above a toilet seat. The backrest is attached to the front of the cabinet, and is arranged at a position where the user can lean on the waist or back while sitting on the toilet seat. The front surface of the backrest is an inclined surface that is inclined so that the entire body comes down toward the front.

JP 2014-34784 A

  In the above case, since the entire front surface of the backrest is an inclined surface, when the user leans on the inclined surface, the buttocks may slide on the toilet seat and shift forward. In addition, the entire front surface of the backrest is flat, and the user's body shape and movement are not substantially considered, which makes it difficult for the user to obtain a fit. As a result, there is a problem that the backrest is not always convenient for a user of a wheelchair or a person who has limited freedom of limbs.

  The present invention has been completed on the basis of the above-described circumstances, and provides a backrest for a toilet that can eliminate front slippage, has a good fit, and is easy to use even for a person who does not have physical freedom. The purpose is to do.

  A first invention of the present invention is a toilet backrest that is disposed behind and above a toilet seat, and has a front surface serving as a backrest surface. The lower part is characterized in that it has a curved surface that is substantially upright in the vertical direction, and that curves so as to protrude forward from the left and right central parts toward the left and right sides.

  A second invention of the present invention is a toilet backrest which is disposed behind and above a toilet seat and has a front surface serving as a backrest surface. It is characterized in that it has a curved surface at the lower part of the front surface, which is substantially upright in the vertical direction, and which is curved so as to protrude forward from the left and right central portions toward the left and right sides.

In the case of the first invention, when the user sitting on the toilet seat leans against the backrest, the lower back of the user, such as the waist, is stably held along the curved surface of the backrest, while the user is inclined backward by the inclined surface. The freedom of movement of the upper part of the back, such as the shoulder, is ensured.
In the case of the second invention, when the user sitting on the toilet seat leans against the backrest, the lower back of the user, such as the waist, is stably held along the curved surface of the backrest as in the first invention, while the evacuation surface This allows the user to move or twist the upper side of the back to the left or right, or to move the upper limb such as the shoulder or the arm without any trouble, thereby increasing the freedom of movement.
Therefore, according to the first and second aspects of the present invention, there is provided a toilet backrest that can eliminate a frontal shift, has a good fit, and is easy to use even for a person who has limited freedom of body.

1 is a perspective view of a toilet room including a backrest according to Embodiment 1 of the present invention. It is a perspective view of a backrest. It is a side view of a backrest. It is a top view of a backrest. It is a front view of a backrest. FIG. 6 is a sectional view taken along line AA of FIG. 5. FIG. 6 is a sectional view taken along line BB of FIG. 5. FIG. 6 is a sectional view taken along line CC of FIG. 5. It is DD sectional drawing of FIG. It is the figure which looked at the upper end surface of the backrest from the upper part.

Preferred embodiments of the present invention are shown below.
In the first and second aspects of the present invention, it is preferable to have a recessed portion that is recessed in the vertical direction at the left and right central portions of the front surface. According to this, the spine of the user is not strongly pressed, and a person who has a spine disorder can use it without feeling pain.

<Example 1>
Hereinafter, a first embodiment will be described with reference to the drawings. This embodiment illustrates a backrest 10 installed in a toilet room 90 of a multipurpose toilet as shown in FIG. The toilet room 90 has a front wall plate 92 covering the front surface of the lower cabinet 91, and a toilet 80 is installed on the front surface of the front wall plate 92. The toilet 80 is a wall-mounted flush toilet and has a toilet seat 81 that can be opened and closed.

  The backrest 10 is attached to the upper part of the front surface of the front wall plate 92, and is arranged behind and above the toilet seat 81. In addition, in the toilet room 90, in addition to the backrest 10 and the toilet bowl 80, a flip-up handrail 93, a toilet paper holder 94A, and a mirrored dirt distribution unit 95 are arranged on the left side when viewed from the user sitting on the toilet seat 81. On the right side, a fixed handrail 96, a toilet holder 94A, a hand washer 97, an inlet 98 for a dust box, and a vanity stand 99 with a mirror are arranged.

  More specifically, the backrest 10 includes a pad made of a material having a cushioning property such as urethane foam, has a predetermined thickness in the front-rear direction, and has a horizontally long rectangular shape when viewed from the front. As shown in FIG. 3, a back plate 11 is provided at a rear portion of the backrest 10. The backrest 10 is attached and fixed to the front wall plate 92 by a pair of left and right attachment members 12 (see FIG. 5) being locked to the front surface of the front wall plate 92 via the back plate 11.

  The front surface of the backrest 10 is a backrest surface, which is designed so that the back of the user touches, in particular, the portion of the back of the standard-sized user from the lower side of the scapula to the waist. . In the case of this embodiment, the following three-dimensional irregularities are provided on the front surface of the backrest 10 in consideration of a user who has limited physical freedom such as a wheelchair user. In the following description, the lower portion of the front surface of the backrest 10 is defined as a lower portion of a front lower portion 13 with respect to a portion indicated by a line BB in FIG. The upper part is the front upper part 14.

  A lower surface 13 of the front surface of the backrest 10 is provided with a curved surface 15 that curves so as to gradually protrude forward from left and right central portions (a portion where a recessed portion 18 described later is located) toward both left and right sides. The curved surface 15 has a curved shape along the waist of the user.

  The lower front portion 13 of the backrest 10, including the curved surface 15, stands upright so as to be substantially vertically upright. For this reason, the lower part of the backrest 10 is configured to have a constant thickness in the vertical direction with the cross-sectional shape shown in FIG. 6 (see FIG. 3).

  As shown in FIG. 3, an inclined surface 16 that is gradually inclined rearward as it goes upward from the upper and lower central portions is provided on the front upper portion 14 of the backrest 10 except for the recessed portion 18. The upper rear portion of the backrest 10, which is located at the back-to-back position with the front upper portion 14, also has a rear inclined surface 17 that also inclines rearward as it goes upward. The inclination angle of the back slope 17 with respect to the vertical direction is smaller than that of the slope 16.

  The curved surface 15 is also formed on the front upper portion 14 across the upper and lower central portions. As shown in FIGS. 7 to 9, the curved surface 15 of the front upper portion 14 is configured so that the curvature becomes smaller as it goes upward due to the backward inclination of the inclined surface 16, and the curved shape is gradually eliminated.

  Further, as shown in FIGS. 2 and 10, the backrest 10 has a retreating surface 19 that is inclined rearward toward both left and right sides on the left and right sides of the upper end of the front surface. The retreating surface 19 is included in the inclined surface 16 and has a form in which upper right and left corners are receded into a curved shape. As shown in FIG. 9 to FIG. 10, the left and right sides of the front upper portion 14 of the backrest 10 gradually change the surface shape from the end of the curved surface 15 protruding forward to the evacuation surface 19 recessed rearward.

  At the center of the left and right sides of the backrest 10, there is provided a concave portion 18 having a concave cross-sectional shape and concave in the vertical direction. The depression 18 is arranged at a position corresponding to the user's spine, and the spine can escape inside. The recessed portion 18 has a constant depth in the vertical direction in the front lower portion 13 and, as shown in FIG. 7 to FIG. It is configured to be. The recess 18 is provided over the entire length of the backrest 10 in the vertical direction, and is opened at both upper and lower ends of the backrest 10.

  The front surface of the backrest 10 has a curved surface between the upright region of the front lower portion 13 at the upper and lower central portions and the inclined surface 16, between the concave portion 18 and the curved surface 15, and between the concave portion 18 and the inclined surface 16. It is connected by a curved surface portion 21. The curved surface portion 21 serves to suppress a sudden change in the shape of the front surface of the backrest 10 and softly contact the back of the user with the front surface of the backrest 10.

The structure of the backrest 10 is as described above. Next, the operation and effect of the present embodiment will be described.
When the user of the standard body sitting on the toilet seat 81 leans on the backrest 10, the upper end surface of the backrest 10 is positioned below the scapula of the user. At this time, the vicinity of the waist of the user is arranged along the curved surface 15 of the backrest 10, and is held by the lower front portion 13 of the backrest 10 in a state where the movement is restricted. For this reason, the vicinity of the waist is stably supported, and a good fit is obtained for the user. Here, for example, even if the user is thin or obese compared to the standard body shape, the body shape error can be absorbed by the cushioning (elasticity) of the backrest 10.

  In addition, the vicinity of the back of the user is disposed so as to face the inclined surface 16 of the backrest 10, and an operation of leaning and leaning on the upper front portion 14 of the backrest 10 is allowed. Even if the user leans on the front lower portion 13 of the backrest 10, the posture near the waist is stabilized by the curved surface 15, so that the user's buttocks slide forward on the toilet seat 81 (forward displacement). Hard to get up. Therefore, it is possible to prevent a situation in which a person who has limited physical freedom slips forward and falls down from the toilet seat 81.

  Further, for example, when the user leans on the front upper portion 14 of the backrest 10 and reaches out to the hand washer 97 or the insertion port 98 by twisting the back, for example, the upper back of the user (the shoulder such as the scapula). Part is escaped by the retreat surface 19. For this reason, the vicinity of the shoulder does not need to contact the backrest 10 or only touches lightly along the evacuation surface 19, and the vicinity of the shoulder can be moved without any trouble. Also, the upper side of the back does not come into contact with the upper end corner of the backrest 10, and the user does not feel discomfort.

  Further, since the user's spine enters the depression of the recessed portion 18 and is escaped, for example, even a spinal injured person or a bent elderly person does not feel a feeling of oppression from the backrest 10, causing pain in the spine. You do not need to feel. Moreover, since the recess 18 is provided to extend over the entire length of the backrest 10 in the vertical direction, the advantage of the recess 18 for releasing the spine can be enjoyed regardless of the height of the user.

  As described above, according to the present embodiment, when the user sitting on the toilet seat 81 leans against the backrest 10, the lower back of the user, such as the waist, is stably held along the curved surface 15 of the backrest 10. On the other hand, the backward inclination of the inclined surface 16 ensures the freedom of movement of the upper side of the back such as the shoulder of the user, so that it is possible to eliminate the frontal deviation, and with a good fit, the body is not free. People can also get high satisfaction. In particular, in the case of the present embodiment, users of various body types, such as height, height, thin type, and obesity type, can comfortably use.

  In addition, since the evacuation surface 19 is provided on both left and right sides of the upper end of the front surface of the backrest 10 and is inclined rearward toward the left and right sides, it hinders the user from moving or twisting the upper side of the back left or right. And the degree of freedom of movement is further increased.

  In addition, since the backrest 10 has a recessed portion 18 which is recessed in the vertical direction at the left and right central portions of the front surface of the backrest 10, the backbone of the user is not strongly pressed, so that a person who suffers from the spine feels pain. Can be used without.

<Other embodiments>
Hereinafter, another embodiment will be briefly described.
(1) The backrest may be provided integrally with the toilet without being attached to the front wall plate.
(2) The height of the backrest can be changed in the vertical direction, and / or the depth of the backrest can be changed in the front-back direction, and is adjusted to an appropriate position according to the user's body type. Is also good.
(3) The boundary between the lower front portion and the upper front portion of the backrest may be just the upper and lower center, or may be a position below the upper and lower center.
(4) The toilet may be of a floor-standing type installed on the floor of a toilet room.
(5) The backrest does not have an inclined surface in the upper front portion, has a curved surface in the lower front portion, is substantially upright from the lower front portion to the upper front portion over the entire height, and has a retreating surface in the upper end portion of the front surface. It may be.
(6) The backrest has no evacuation surface on the left and right sides of the upper end of the front surface, and has a curved surface on the lower front surface, and the upper front surface is inclined at a substantially constant inclination angle including the left and right sides of the upper end portion. May be configured.
(7) The present invention is not limited to multipurpose toilets, but is also applicable to public toilets and household toilets mainly used by healthy persons.

DESCRIPTION OF SYMBOLS 10 ... Backrest 13 ... Front lower part 14 ... Front upper part 15 ... Curved surface 16 ... Inclined surface 18 ... Depressed part 19 ... Evacuation surface 80 ... Toilet 81 ... Toilet seat 90 ... Toilet room

Claims (3)

A toilet backrest that is arranged behind and above the toilet seat, and whose front surface is a backrest surface against which a user seated on the toilet seat leans ,
In the upper part of the front, it has a slope that slopes backward as it goes upwards,
A backrest for a toilet, characterized by having a curved surface at a lower part of a front surface which is substantially upright in a vertical direction, and which is curved so as to project forward from left and right central portions toward left and right sides. A toilet backrest that is disposed behind and above the toilet seat and has a front surface as a backrest surface,
On both left and right sides of the front upper end, there is a retracting surface that is inclined backward as it goes to the left and right sides,
A backrest for a toilet, characterized by having a curved surface at a lower part of a front surface which is substantially upright in a vertical direction, and which is curved so as to project forward from left and right central portions toward left and right sides.   The backrest for a toilet according to claim 1 or 2, further comprising a recessed portion depressed in a vertical direction in a central portion on the right and left sides of a front surface.

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