JP5857498B2 - Toilet handrail - Google Patents

Description

  The present invention relates to a handrail for a toilet.

  In recent years, handrails for toilets are provided around the Western-style sitting toilets in order to support an operation when the user stands up from a seated state.

  When the user stands up from the Western-style sitting toilet, the user first performs a forward tilting operation to tilt the body forward and move the center of gravity forward, and shifts to a state where the weight is placed on the foot. Subsequently, a stand-up operation is performed to move the center of gravity upward while extending a leg, and the state shifts to a stand-up state. These actions performed by the user are supported by the toilet handrail as follows.

  When performing the forward tilting operation, the user first grasps the grip portion of the handrail for toilet and applies a pulling force to the grip portion. The pulling force is a force applied in a direction to pull the grip portion toward the user, and the user tilts the body forward by receiving a reaction force of the pulling force.

  Subsequently, when performing the stand-up operation, the user applies a push-up force to the gripping portion while holding the gripping portion. The push-up force is a force applied in a direction to push down the gripping portion, and the user is pushed up by receiving a reaction force of the push-up force. The user stretches his leg while receiving support from the upward force, and shifts to a standing state.

  Thus, in the forward tilting operation and the rising operation, the user applies a pulling force and a pushing force to the grip portion of the handrail for the toilet, respectively. The user can easily stand up while being supported by receiving the reaction force.

  As such a handrail for toilets, the thing of the following patent document 1 is proposed. The handrail for the toilet described in Patent Document 1 has an L-shape when viewed from the side, and includes a first gripping portion arranged vertically and a second gripping portion arranged horizontally. A gripping part is provided.

  When standing up using the handrail for a toilet having such a shape, a user in a seated state first grasps the first gripping portion arranged vertically. Thereafter, a forward tilting operation is performed by applying a pulling force to the first grip portion. Subsequently, the user releases his / her hand once from the first grip part and grips the second grip part which is arranged horizontally. Thereafter, a rising operation is performed by applying a pushing force to the second gripping portion.

  When shifting from the forward tilting operation to the rising operation, as described above, the user needs to release the hand from the first gripping portion and change the gripping position to the second gripping portion. The reason is that the two gripping forces applied to the first gripping portion and the second gripping portion, that is, the appropriate gripping force to apply a large force to the gripping portion due to the different directions of the pulling force and the pushing force, respectively. This is because the positions are different.

  It is also possible for the user to apply a push-up force while holding the first gripping portion arranged vertically without changing the gripping position. However, in this case, the direction of the push-up force and the axial direction of the grasped gripping part substantially coincide with each other, and the body is supported by the force mainly including the frictional force between the hand and the gripping part. For this reason, in order to prevent slipping, it is necessary to apply a large gripping force, and the burden on the user is increased.

  The same applies to the case where a pulling force is applied while the second gripping portion that is horizontally arranged first is gripped, and it is necessary to apply a large gripping force to prevent slipping during the forward tilting operation. This increases the burden on the user.

  In particular, a user who needs a handrail for a toilet often has a weak grip, such as an elderly person or a disabled person. Therefore, in order to stand up safely with a small load without applying a large gripping force, the user needs to make the gripping position when the pulling force is exerted different from the gripping position when the pulling force is exerted.

  In the conventional handrail for toilets as described in Patent Document 1, when shifting from a forward tilting operation to a rising operation, the user has to release his hand once from the grip portion. Since the user at this time is in the middle of the standing-up operation and has an unstable posture, there is a possibility that the balance may be lost by releasing the hand from the grasping portion.

  On the other hand, as described in Patent Document 2, a handrail in which grip portions having a uniform thickness are arranged in an inclined manner is also known. When the gripping portion is arranged in this way, in a series of operations performed when the user stands up, the user can apply a pulling force or a pushing force to the gripping portion without changing the gripping position of the gripping portion on the way. It becomes possible.

Japanese Patent Laid-Open No. 2002-238806 JP 2002-201784 A

  In the handrail described in Patent Document 2 described above, the pulling force and push-up force that can be applied to the gripping portion arranged in an inclined manner are both in the case of the L-shaped handrail described in Patent Document 1. In comparison, there was a problem that only a small force could be applied.

  This is due to the fact that the pulling force and the pushing force applied to the gripping part are in a trade-off relationship with each other because the magnitude thereof changes depending on the arrangement angle of the gripping part. Specifically, when the user applies a pulling force to the gripping part, the gripping part is arranged vertically so that the strongest force can be applied to the gripping part without depending on the frictional force between the hand and the gripping part. Is the case. On the other hand, when the user applies a pushing force to the gripping part, the strongest force can be applied to the gripping part without relying on the frictional force between the hand and the gripping part when the gripping part is arranged horizontally. is there.

  Therefore, in the case where the grip portion is arranged in an inclined shape, only a small force can be applied to both the pulling force and the push-up force compared to the case where the strongest force can be applied to the grip portion.

  The present invention has been made in view of such circumstances and knowledge, and in a series of operations performed when a user stands up from a Western-style seated toilet, it is not necessary to release the hand from the gripping portion and change the gripping position. An object of the present invention is to provide a handrail for a toilet that can easily apply a large pulling force and a large pushing force to a gripping portion.

In order to solve the above problems, a handrail for a toilet according to the present invention is a handrail for a toilet that supports an operation when a user sitting on a Western-style seated toilet rests from a forward tilting operation through a rising operation, When the western-style seat toilet is viewed from the side, the gripper is disposed in front of and above the western-style seat toilet and is obliquely disposed so as to approach the western-style seat toilet from the upper side to the lower side in the vertical direction. The gripping part is at least a part of a side surface located on the back side as viewed from the user seated on the Western-style seated toilet, and the user seated on the Western-style seated toilet bowl A user who is seated on the Western-style sitting toilet, and a pulling surface portion that is a portion to which a force is applied in a direction in which the gripping portion is pulled toward the user side when the finger is hooked when performing a forward tilting operation At least a portion of the side surface located on the front side as viewed al, when the user performs a rising operation following the pre-tilt operation, a force in a direction in a state carrying the hand flat depressing the grip portion downward A pull-up surface portion that is a portion to which the gripping portion is applied, so that the user can apply a force to the pulling surface portion and the push-up surface portion without changing the gripping position of the gripping portion. , The gripping portions are opposed to each other in a cross section when cut in a plane perpendicular to the axial direction, and an inclination angle formed by the drawing surface portion with respect to a horizontal plane when the Western-style seat toilet is viewed from the side is a first angle. The first angle is the second angle when the angle formed by the push-up surface portion with respect to a horizontal plane when the Western-style seat toilet is viewed from the side is the second angle. than And wherein the hearing.

  As described above, the operation when the user who is seated on the Western-style sitting toilet stands up includes a forward tilting operation and a rising operation. And in each operation | movement, the direction of the force which a user's hand exerts on a holding part differs. The present inventors have made detailed observations about the operation when a user seated on a Western-style sitting toilet grasps a gripping part arranged in an inclined shape when viewed from the side, and the force exerted on the gripping part at that time. . As a result, it was found that not only the direction of the force exerted by the user's hand on the gripping part but also the place where the force acts on the gripping part, the forward tilting action and the rising action differ from each other.

  In the forward tilting operation, first, a finger is put on a part of the side surface located on the back side when viewed from the user who is seated on the Western-style sitting toilet. Thereafter, since a pulling force is applied to the gripping portion in that state, most of the pulling force is applied to the side surface of the gripping portion on which the finger is hung. In other words, almost no force is applied to the side surface located on the near side as viewed from the user seated on the Western-style seated toilet during forward tilting.

  On the other hand, in the rising motion performed following the forward tilting motion, the palm is placed on a part of the side surface located on the near side as viewed from the user seated on the Western-style sitting toilet. In this state, since a pushing force is applied to the gripping portion, most of the pushing force is applied to the side surface of the gripping portion on the side where the palm is placed. In other words, almost no force is applied to the side surface located on the back side when viewed from the user in the state of sitting on the Western-style toilet, during the rising operation.

  The present invention is based on the above knowledge, and in the grip portion, the shape of the portion to which most of the pulling force is applied during the forward tilting operation and the shape of the portion to which the most of the pushing force is applied during the rising operation Are different from each other, and have shapes suitable for applying respective forces. In the handrail for a toilet according to the present invention, the grip portion is disposed so as to be inclined in a side view so as to approach the Western-style seated toilet from the upper side to the lower side in the vertical direction. For this reason, when the user shifts from the forward tilting operation to the rising operation, the user does not have to release his / her hand from the gripping part and can change his / her hand, and can start up by performing a series of operations safely.

  Moreover, in the handrail for toilets of this invention, the 1st angle which is an inclination angle which an attraction | suction surface part makes with respect to a horizontal surface is made larger than the 2nd angle which is the inclination angle which a pushing-up surface part makes with respect to a horizontal surface. . Thereby, since the inclination angle of the drawing surface part to which force is applied during the forward tilting operation is increased, the user can apply a strong drawing force to the gripping part. On the other hand, since the inclination angle of the push-up surface portion to which force is applied during the rising operation becomes small, the user can apply a strong push-up force to the grip portion.

  As described above, according to the handrail for a toilet of the present invention, there is no risk of falling in a series of operations performed for a seated user to stand up, and the user has a large pulling force and a large push-up on the grip portion. It is possible to apply force, and the burden on the user when standing up can be significantly reduced.

  Moreover, in the handrail for the toilet which concerns on this invention, when the said Western-style seat toilet is seen from the side, it is also preferable that the said raising surface part is curvedly formed so that it may protrude upwards.

  The vector of force applied to the grip portion by the user's hand continuously changes during the forward tilting and rising motions. In particular, the vector of the force received by the push-up surface during the standing-up operation changes greatly as the user's posture changes and the position of the center of gravity increases, and in this preferred mode, a curve is formed so that the push-up surface protrudes upward. Has been. Accordingly, the user can smoothly change the force vector applied to the push-up surface portion by continuously changing the direction of the force applied to the push-up surface portion that is curved without changing the grip portion. Large pushing force can be applied.

  Further, in the handrail for a toilet according to the present invention, when the Western-style seated toilet is viewed from the side, the pulling surface portion is curved so as to recede upward, and the radius of curvature of the push-up surface portion is It is also preferable that the radius is larger than the radius of curvature of the drawing surface portion.

  In this preferred embodiment, the drawing surface portion is curved so as to recede upward. As a result, the user can smoothly change the force vector applied to the drawing surface portion by continuously changing the direction of the force applied to the drawing surface portion that is curved without changing the holding portion. On the other hand, a large pulling force and a large pushing force can be applied.

  In addition, since the push-up surface portion and the pull-up surface portion are both curved so as to protrude or retreat upward, a part of the grip portion does not become extremely thick. Therefore, the user can firmly hold the grip portion, and the user can be prevented from slipping and falling.

  Furthermore, since the radius of curvature of the push-up surface portion is formed larger than the radius of curvature of the attracting surface portion, the push-up surface portion approaches the horizontal, and the push-up force applied to the gripping portion during the rising operation can be increased. On the other hand, since the radius of curvature of the attracting surface portion is formed small, the attracting surface portion approaches a vertical direction, and the attracting force applied to the grip portion during the attracting operation can be increased.

  Moreover, in the handrail for toilets according to the present invention, it is also preferable that the gripping portion is disposed obliquely so as to approach the western-style seated toilet from below to above when the western-style seated toilet is viewed from the front side. .

  When the user applies a pulling force to the grip portion, the direction in which the user can most easily apply the force is the direction from the grip portion toward the user's own body. In this preferable aspect, in addition to arranging the gripping portion to be inclined when the Western-style seated toilet is viewed from the side, the gripping portion is also tilted when the Western-style seated toilet is viewed from the front side. Are arranged as follows. As a result, the direction in which the user can most easily apply the force when the user grips the gripping portion and the direction of the force that needs to be applied to the gripping portion when the user stands up from the seated state can be substantially matched. . Therefore, the user can efficiently apply the force necessary for standing up to the handrail for the toilet. As a result, the burden on the user can be significantly reduced.

  According to the present invention, in a series of operations performed when a user stands up from a Western-style sitting toilet, it is not necessary to release the hand from the gripping part to change the gripping position, and a large pulling force and a large pushing force are applied to the gripping part. It is possible to provide a handrail for a toilet.

It is a front view which shows typically the toilet room in which the handrail for toilets concerning one Embodiment of this invention was installed. It is a side view which shows typically the toilet room in which the handrail for toilets concerning one Embodiment of this invention was installed. It is a side view which shows typically the shape of the holding part of the handrail for toilets concerning one Embodiment of this invention. It is a side view for demonstrating a pulling force being applied with respect to the holding part of the handrail for toilets concerning one Embodiment of this invention. It is a side view for demonstrating a mode that pushing-up force is applied with respect to the holding part of the handrail for toilets concerning one Embodiment of this invention. It is a graph which shows the relationship between the inclination angle of a drawing surface part, and the magnitude | size of a drawing force, and the relationship between the inclination angle of a raising surface part, and the magnitude | size of a pushing force. It is sectional drawing at the time of cut | disconnecting the holding part which concerns on one Embodiment of this invention by the surface perpendicular | vertical to the axial direction. It is sectional drawing explaining a mode that the user gripped the holding part shown in FIG. In the handrail for the toilet which concerns on the comparative example of this invention, it is a side view for demonstrating a mode that a user applies pulling force with respect to a holding part. In the handrail for toilets which concerns on the comparative example of this invention, it is a top view for demonstrating a mode that a user applies pulling force with respect to a holding part. In the handrail for the toilet which concerns on one Embodiment of this invention, it is a top view for demonstrating a mode that a user applies pulling force with respect to a holding part. It is a side view which shows typically the toilet room in which the handrail for toilets concerning 2nd Embodiment was installed. It is a side view which shows typically the shape of the holding part of the handrail for toilets concerning 2nd Embodiment. It is a side view for demonstrating a pulling force being applied with respect to the holding part of the handrail for toilets concerning 2nd Embodiment. It is a side view for demonstrating a mode that pushing-up force is applied with respect to the holding part of the handrail for toilets concerning 2nd Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

  A handrail for a toilet which is an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a front view schematically showing a toilet room in which handrails for toilets according to the first embodiment of the present invention are installed, and FIG. 2 is a side view thereof.

  The handrail 1 for the toilet according to the present embodiment is fixed to the lateral wall 2 of the toilet room and is disposed on the side of the western-style seat toilet 3. The handrail 1 for the toilet is composed of a vertical handrail 4, a grip portion 5, and a horizontal handrail 6 from the top thereof, and these are fixed handrails having a structure in which these are all integrally coupled and have no movable portion.

  The vertical handrail 4 is a portion that occupies the upper part of the handrail 1 for the toilet, and is arranged so that its axis is in the vertical direction. The vertical handrail 4 is a part that can be grasped by a user standing up, and the posture at the time of entering the toilet room and trying to sit on the Western-style toilet 3 or the posture after standing up from the Western-style toilet 3 It is provided for the purpose of supporting.

  The gripping part 5 is a part provided in the lower part of the vertical handrail 4 and is disposed in front of and above the western-style seat toilet 3. The grip portion 5 is a portion that is gripped when the user who is seated on the Western-style seat toilet 3 stands up, and is provided for the purpose of supporting a series of operations performed for the user to stand up. The specific shape of the grip portion 5 will be described in detail later.

  The horizontal handrail 6 is a portion provided at the lower portion of the grip portion 5 and is disposed such that its axis is in the horizontal direction. The horizontal handrail 6 is a portion that is gripped by a user who is seated on the Western-style seat toilet 3 and is provided for the purpose of supporting the posture of the user in the state.

  In addition, in this embodiment, although the handrail 1 for toilets is being fixed to the horizontal wall 2 of a toilet room, it can be fixed in various aspects, such as fixing to the ceiling or floor of a toilet room.

  Next, a specific shape of the grip portion 5 will be described. As shown in FIG. 2, the grip portion 5 of the present embodiment has a side surface so as to approach the western-style seat toilet 3 from the upper side in the vertical direction to the lower side when the western-style seat toilet 3 is viewed from the side. It is arranged in a tilted view.

  In FIG. 3, the shape of the gripping part 5 is shown enlarged. In the figure, θ1 is an inclination angle formed by a side surface located on the back side as viewed from the user in a state of being seated on the Western-style sitting toilet 3 among the side surfaces of the grip portion 5 with respect to the horizontal plane. In addition, θ2 is an inclination angle formed by the side surface of the grip portion 5 that is located on the near side as viewed from the user seated on the Western-style sitting toilet with respect to the horizontal plane. In the present embodiment, the grip portion 5 is formed so that θ1 is larger than θ2. Thereby, the thickness of the holding part 5 which concerns on this embodiment is not uniform, and the thickness is so thick that it goes below.

  Next, a description will be given of the force applied to the grip portion 5 from the user's hand when the user stands up from the state of being seated on the Western-style sitting toilet 3 with reference to FIGS. 4 and 5.

  The operation when the user grasps the grip portion 5 and stands up includes two operations performed in series. The first operation is a forward tilting operation, and the subsequent operation is a rising operation.

  The forward tilt operation is an operation for the user to tilt the body forward and move the center of gravity forward. With this operation, the user shifts to a state where his / her weight is put on his / her foot, and is ready to stand up.

  The standing-up operation is an operation in which a user who puts his / her weight on a foot by a forward tilting operation moves the center of gravity upward while stretching the foot. By this operation, the user shifts from the Western-style sitting toilet 3 to a state where the user has completely stood up.

  In the forward tilting operation, the user applies a pulling force 7 to the grip 5 while holding the grip 5. The pulling force 7 is a force applied in the direction in which the grip portion 5 is pulled toward the user as indicated by an arrow in FIG. The user leans forward by receiving the reaction force of the pulling force 7. In other words, the user's forward tilting motion is supported by the reaction force.

  As is clear from FIG. 4, most of the pulling force 7 is seen from a part of the side surface of the gripping portion 5 on the left side surface in FIG. It is added to a part of the side surface located on the back side. When the portion to which the pulling force 7 is applied is defined as the pulling surface portion 9, the inclination angle that the pulling surface portion 9 makes with the horizontal plane is θ1.

  In the present embodiment, since the grip portion 5 is formed so that θ1 becomes large, the user can apply a strong pulling force 7 to the grip portion 5.

  In the stand-up operation, the user applies a push-up force 8 to the grip 5 while holding the grip 5. The push-up force 8 is a force applied in a direction to push down the grip portion 5 as indicated by an arrow in FIG. The user is pushed upward by receiving the reaction force of the pushing-up force 8. In other words, the rising force of the user is supported by the reaction force.

  As is clear from FIG. 5, most of the pushing-up force 8 is viewed from the side of the gripper 5, that is, a part of the right side surface in FIG. It is added to a part of the side surface located on the near side. When the portion to which the pushing-up force 8 is applied is defined as the pushing-up surface portion 10, the inclination angle that the pushing-up surface portion 10 makes with the horizontal plane is θ2.

  In the present embodiment, since the grip portion 5 is formed so that θ2 becomes small, the user can apply a strong push-up force 8 to the grip portion 5.

  FIG. 6 shows the relationship between the inclination angle of the attracting surface portion 9 and the magnitude of the attracting force 7 applied by the user. The relationship between the inclination angle of the push-up surface portion 10 and the magnitude of the push-up force 8 applied by the user is also shown. In conventional handrails for toilets, since the thickness of the grip portion is uniform, the inclination angle of the pulling surface portion 9 and the inclination angle of the push-up surface portion 10 both coincide with the installation angle of the grip portion. For this reason, as is clear from FIG. 6, when the installation angle of the grip portion is increased, the pulling force applied by the user is increased while the pushing force is decreased. On the other hand, when the installation angle of the gripping portion is reduced, the pushing force applied by the user is increased while the pulling force is decreased.

  That is, in conventional handrails for toilets, the pulling force and push-up force applied to the gripping part both change in magnitude depending on the arrangement angle of the gripping part, and are in a trade-off relationship with each other. For this reason, in a conventional toilet handrail in which the grip portion is simply arranged in an inclined shape, the user can apply a pulling force and a push-up force to the grip portion without changing the grip position of the grip portion 5. However, only a small amount of force could be applied to any of them.

  On the other hand, the handrail 1 for a toilet according to the present embodiment makes the inclination angle θ1 of the pulling surface portion 9 that receives the pulling force 7 different from the inclination angle θ2 of the pushup surface portion 10 that receives the pushing force 8, and each force is different. The angle is suitable for receiving. That is, θ1 is made large so that the user can apply a strong pulling force 7 to the grip portion 5. On the other hand, θ2 is made small so that the user can apply a strong pushing force 8 to the grip portion 5.

  Next, the axial cross-sectional shape of the grip part 5 according to the present embodiment will be described.

  FIG. 7 shows a cross-sectional view of the grip portion 5 taken along a plane perpendicular to the axial direction. Moreover, the state which the user's hand grasped the holding part 5 shown in FIG. 7 was shown in FIG.

  The cross-sectional shape by the surface perpendicular to the axial direction of the grip portion 5 according to the present embodiment is formed in a substantially circular shape as shown in these drawings, but is not a perfect circle. In the cross-sectional shape, the grip portion 5 is formed such that the outer curvature radius R2 on the push-up surface portion 10 side is larger than the outer curvature radius R1 on the pulling surface portion 9 side.

  When the user applies a force to the grip portion 5 during the forward tilting operation, the user applies a pulling force with the finger placed on the pulling surface portion 9 of the grip portion 5. Therefore, if the curvature radius R1 of the outer shape on the drawing surface portion 10 side is formed small in the cross-sectional shape by the surface perpendicular to the axial direction of the grip portion 5, the user can exert a greater gripping force, and as a result, a large drawing force. Force can be applied to the grip.

  On the other hand, when the user applies a force to the grip portion 5 during the standing-up operation, the user applies a push-up force with the palm placed on the push-up surface portion 10 of the grip portion 5. Therefore, when the curvature radius R2 of the outer shape on the push-up surface portion 10 side is formed large in the cross-sectional shape of the surface perpendicular to the axial direction of the grip portion 5, the user applies a large push-up force to the grip portion 5 using the entire palm. be able to.

  Then, arrangement | positioning of the holding | grip part 5 when the western-style seat toilet 3 is seen from the front side is demonstrated.

  As shown in FIG. 1, when the western-style seat toilet 3 is viewed from the front side, the grip portion 5 is disposed in an inclined manner in a front view so as to approach the western-style seat toilet 3 from below to above. Yes. In other words, the gripping portion 5 is not only arranged in an inclined manner in a side view as described above, but also in an inclined shape in a front view.

  The relationship between the inclination angle of the grip part 5 when the Western-style seat toilet 3 is viewed from the front side and the pulling force applied by the user to the grip part 5 will be described with reference to FIGS. 9 to 11.

  FIG. 9 is a side view for schematically explaining the manner in which the user applies a pulling force to the grip portion in the toilet handrail according to the comparative example of the present invention, and FIG. 10 is a top view thereof.

  The grip portion of the handrail for the toilet according to this comparative example, when viewed from the side of the western-style seat toilet, is similar to the present embodiment so as to approach the western-style seat toilet from the top to the bottom in the vertical direction. It is arranged in an inclined shape when viewed from the side. On the other hand, when the Western-style seated toilet is viewed from the front side, unlike the present embodiment, it is not inclined in front view but is arranged so that its axial direction is vertically downward.

  When the user stands up from the Western-style sitting toilet 3, as described above, first, a pulling force is applied to the grip portion. Here, the direction of the pulling force necessary to support the user's forward tilting operation is the direction from the grip portion toward the user's torso, as indicated by the arrow F7.

  On the other hand, the direction in which the user is most likely to apply the pulling force in the state where the user grips the grip portion is the direction indicated by the arrow F8 in the grip portion of the present embodiment. This is due to the structure of a human skeleton, muscle, and the like, and is due to the fact that the direction in which a force can be easily applied is limited depending on the orientation of the wrist in the state of gripping the grip.

  As is apparent from FIG. 10, the direction of the arrow F7 and the direction of the arrow F8 do not match. That is, in this comparative example, the direction of the pulling force necessary to support the forward tilting operation does not coincide with the direction in which the pulling force is most easily applied when the user holds the gripping portion. As a result, the user cannot efficiently apply the force necessary for the forward tilting operation to the gripping portion, which increases the burden on the user.

  Unlike this comparative example, in the present embodiment, the gripping portion 5 is not only arranged in an inclined manner in a side view, but is also arranged in an inclined manner in a front view.

  FIG. 11 is a top view for schematically explaining how the user applies a pulling force to the grip portion 5 in the handrail for the toilet according to the present embodiment. In the figure, the direction of the pulling force necessary to support the user's forward tilting operation is indicated by an arrow F9. The direction in which the user can easily apply the pulling force in the state where the user grips the grip portion 5 is indicated by an arrow F10.

  As is clear from FIG. 11, the direction of the arrow F9 and the direction of the arrow F10 coincide. That is, in the present embodiment, unlike the comparative example, the direction of the pulling force necessary to support the forward tilting operation and the direction in which the user is most likely to apply the pulling force in the state where the user grips the holding portion 5 are provided. Match. As a result, the user can efficiently apply the force necessary for the forward tilting operation to the grip portion 5, so that the burden on the user can be reduced.

  As described above, according to the toilet handrail 1 according to the present embodiment, when the user stands up from the Western-style sitting toilet 3, the user can draw a large amount with respect to the gripping part 5 without releasing the hand from the gripping part 5 and changing over. A force 7 and a large pushing force 8 can be applied. Therefore, the user can stand up safely without falling down and can easily stand up with a small burden.

  Next, a second embodiment of the present invention will be described. FIG. 12 is a side view schematically showing a toilet room in which the handrail 11 for toilet according to the second embodiment is installed. In 2nd Embodiment, compared with 1st Embodiment demonstrated previously, the shape of a holding part differs.

  The handrail 11 for the toilet of this embodiment is fixed to the lateral wall 2 of the toilet room and is disposed on the side of the western-style seat toilet 3. The handrail 11 for the toilet is composed of a vertical handrail 4, a grip portion 12, and a horizontal handrail 6 from the top thereof, and these are fixed handrails having a structure in which these are all integrally coupled and have no movable portion.

  The vertical handrail 4 is a portion that occupies the upper part of the handrail 1 for the toilet, and is arranged so that its axis is in the vertical direction. The vertical handrail 4 is a part that can be grasped by a user standing up and standing at the time of entering the toilet room and trying to sit on the Western-style toilet 3 or after standing up from the Western-style toilet 3. It is provided for the purpose of supporting.

  The grip portion 12 is a portion provided at the lower portion of the vertical handrail 4 and is disposed in front of and above the western-style seat toilet 3. The grip portion 12 is a portion that is gripped when the user who is seated on the Western-style seat toilet 3 stands up, and is provided for the purpose of supporting a series of operations for standing up. The specific shape of the grip portion 12 will be described in detail later.

  The horizontal handrail 6 is a portion provided at the lower portion of the grip portion 12 and is arranged so that its axis is in the horizontal direction. The horizontal handrail 6 is a portion that is gripped by a user who is seated on the Western-style seat toilet 3 and is provided for the purpose of supporting the posture of the user in the state.

  Next, a specific shape of the grip portion 12 will be described. As shown in FIG. 12, in the present embodiment, the grip portion 12 has a side surface so as to approach the western-style seat toilet 3 from the upper side in the vertical direction to the lower side when the western-style seat toilet 3 is viewed from the side. It is arranged in a tilted view.

  Further, in the present embodiment, the gripping portion 12 is formed in a curved convex shape in a side view so as to protrude upward. Accordingly, the left side surface in FIG. 12 among the side surfaces of the gripping portion 12, that is, the side surface located on the back side as viewed from the user seated on the western-style seat toilet 3 is viewed from the side of the western-style seat toilet 3. When formed, it is formed in a concave shape in side view so as to protrude upward. Further, among the side surfaces of the gripping part 12, the side surface on the right side in FIG. 12, that is, the side surface that is located on the front side as viewed from the user seated on the western-style seat toilet 3, is viewed from the side of the western-style seat toilet 3 When formed, it is formed in a curved convex shape in side view so as to protrude upward.

  In FIG. 13, the shape of the holding part 12 is shown enlarged. In the figure, θ3 is an inclination angle formed by a side surface located on the back side as viewed from the user in a state of being seated on the western-style seat toilet 3 among the side surfaces of the grip portion 12 with respect to the horizontal plane. In addition, θ4 is an inclination angle formed by a side surface located on the near side as viewed from the user in a state of being seated on the Western-style seated toilet, among the side surfaces of the grip portion 12 with respect to the horizontal plane.

  In this embodiment, when the western-style seat toilet 3 is viewed from the side, the curvature radius of the left side surface in FIG. 12 among the side surfaces of the gripping portion 12 is the right side surface in FIG. It is formed so as to be larger than the radius of curvature. As a result, in the grip portion 12 of the present embodiment, θ3 is larger than θ4.

  In addition, since the holding part 12 is formed in the curved convex shape, the magnitude | size of these inclination angles changes with the places in the holding part 12. FIG. Therefore, when comparing θ3 and θ4, the corresponding θ3 and θ4 are compared at the place where the user grasps the grip portion 12 (for example, P1 in FIG. 13). That is, no matter what position the gripper 12 holds, the gripper 12 is always formed such that θ3 is always greater than θ4 when comparing the corresponding θ3 and θ4 at that position.

  Next, the force applied to the gripping part 12 from the user's hand when the user stands up from the state of sitting on the Western-style sitting toilet 3 will be described with reference to FIGS. 14 and 15.

  Also in the present embodiment, when the user stands up from the state of being seated on the Western-style sitting toilet 3, the forward tilting operation and the rising operation are performed in series. These operations are the same as those in the first embodiment described above.

  In the forward tilting operation, the user applies a pulling force 13 to the grip portion 12 while gripping the grip portion 12. The pulling force 13 is a force applied in the direction in which the grip portion 12 is pulled toward the user as indicated by an arrow in FIG. The user leans forward by receiving the reaction force of the pulling force 13. In other words, the user's forward tilting motion is supported by the reaction force.

  As is clear from FIG. 14, most of the pulling force 13 is seen from a part of the side surface of the grip portion 12 on the left side surface in FIG. It is added to a part of the side surface located on the back side. When the portion to which the pulling force 13 is applied is defined as the pulling surface portion 15, the inclination angle that the pulling surface portion 15 makes with the horizontal plane is θ3.

  In the present embodiment, since the grip portion 12 is formed so that θ3 becomes large, the user can apply a strong pulling force 13 to the grip portion 12.

  In the stand-up operation, the user applies a push-up force 14 to the grip portion 12 while holding the grip portion 12. The push-up force 14 is a force applied in a direction to push down the grip portion 12 as indicated by an arrow in FIG. When the user receives the reaction force of the pushing force 14, the body is pushed up. In other words, the rising force of the user is supported by the reaction force.

  As is clear from FIG. 15, most of the push-up force 14 is seen from the part of the side surface of the grip portion 12 on the right side surface in FIG. It is added to a part of the side surface located on the near side. When the portion to which the push-up force 14 is applied is defined as the push-up surface portion 16, the inclination angle that the push-up surface portion 16 makes with the horizontal plane is θ4.

  In the present embodiment, since the grip portion 12 is formed so that θ4 becomes small, the user can apply a strong push-up force 14 to the grip portion 12.

  Next, the vectors of the pulling force 13 and the pushing force 14 will be described.

  In FIG. 14, the vector of the pulling force 13 applied to the pulling surface portion 15, that is, the size, direction, and point of action of the pulling force 13 change with time during the forward tilting operation. It shows a state. In the drawing, the pulling force 13 in the initial stage of the forward tilting operation is indicated by an arrow F1, the pulling force 13 in the middle period of the forward tilting operation is indicated by an arrow F2, and the pulling force 13 in the latter stage of the forward tilting operation is indicated by an arrow F3. For convenience of explanation, the period during the forward tilting operation is divided into three, and the pulling force 13 in each is represented by an arrow, but these actually change continuously.

  As the user's posture changes during the forward tilting operation, the vector of the attractive force 13 applied to the attractive surface portion 15 changes. As shown in FIG. 14, the magnitude of the pulling force 13 is gradually increased. Further, the direction of the pulling force 13 changes from a state toward the front lower side of the user toward the horizontal. Furthermore, the position where the pulling force 13 acts gradually changes upward along the pulling surface portion 15.

  In this embodiment, the shape of the drawing surface portion 15 is formed in a concave shape in a side view so as to protrude upward when the western-style seat toilet 3 is viewed from the side. Therefore, even if the posture of the user changes during the forward tilting operation, the user can smoothly change the vector of the pulling force 13 without changing the grip portion 12.

  In FIG. 15, the vector of the push-up force 14 applied to the push-up surface portion 16, that is, the magnitude, direction, and position of action of the push-up force 14 change with time during the rising operation. Is shown. In the figure, the push-up force 14 in the early stage of the rising operation is indicated by an arrow F4, the push-up force 14 in the middle of the stand-up operation is indicated by an arrow F5, and the push-up force 14 in the late stage of the rise operation is indicated by an arrow F6. For convenience of explanation, the period during the rising operation is divided into three, and the push-up force 14 in each is represented by an arrow, but these actually change continuously.

  As the posture of the user changes during the rising operation, the vector of the pushing force 14 applied to the pushing surface portion 16 changes. As shown in FIG. 15, the magnitude of the push-up force 14 is gradually increased. Further, the direction of the push-up force 14 changes from a state toward the lower back side of the user toward the vertically lower side. Further, the position at which the push-up force 14 acts gradually changes to the near side as seen from the user along the push-up surface portion 16.

  In the present embodiment, the shape of the push-up surface portion 16 is formed in a concave shape in side view so as to protrude upward when the western-style seat toilet 3 is viewed from the side. Therefore, even if the user's posture changes during the standing-up operation, the user can smoothly change the vector of the push-up force 14 without changing the grip portion 12.

1: Handrail for toilets 2: Horizontal wall 3: Western-style toilets 4: Vertical handrails 5: Grasping part 6: Lateral handrails 7: Pulling force 8: Pushing force 9: Pulling surface part 10: Pushing surface part 11: Handrail for toilet 12: Holding part 13: Pulling force 14: Pushing force 15: Pulling surface portion 16: Pushing surface portion

Claims (4)

A handrail for a toilet that supports the movement of a user sitting on a Western-style sitting toilet from the forward tilting movement through the rising movement,
When the Western-style stool is viewed from the side, the grip is arranged in front of and above the Western-style stool and obliquely arranged so as to approach the Western-style stool from the upper side to the lower side in the vertical direction. Part
The gripping part is
It is at least a part of a side surface located on the back side when viewed from the user seated on the Western-style seat toilet, and the user seated on the Western-style seat toilet grabs the grip portion and performs a forward tilting operation. At the time, a pulling surface portion that is a portion to which a force is applied in a direction of pulling the gripping portion toward the user side in a state where a finger is hung,
The Western seat at least part of the side surface as viewed from a user of a state of being seated on a toilet positioned on the front side, when performing the rising operation user followed before tilting operation, while carrying the hand flat A push-up surface portion that is a portion to which a force is applied in a direction to push down the grip portion;
When the gripping portion is cut by a plane perpendicular to the axial direction so that the user can apply a force to the pulling surface portion and the push-up surface portion without changing the gripping position of the gripping portion. In the cross section of
When the Western-style seated toilet is viewed from the side, the inclination angle formed by the drawing surface portion with respect to a horizontal plane is a first angle,
When the tilt angle formed by the push-up surface portion with respect to a horizontal plane when the Western-style seated toilet is viewed from the side is a second angle,
The handrail for a toilet, wherein the first angle is larger than the second angle.   The handrail for a toilet according to claim 1, wherein the push-up surface portion is curved so as to protrude upward when the Western-style seated toilet is viewed from the side.   When the Western seat toilet is viewed from the side, the pulling surface portion is curved so as to recede upward, and the radius of curvature of the push-up surface portion is larger than the radius of curvature of the pulling surface portion. The handrail for a toilet according to claim 2, wherein the handrail is provided.   2. The toilet according to claim 1, wherein the grip portion is disposed obliquely so as to approach the western-style seated toilet from the bottom upward when the western-style seated toilet is viewed from the front side. Handrail.

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