JP2007085079A - Movable handrail - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a movable handrail further easy in manufacture by improving a structure of a conventional movable handrail. <P>SOLUTION: This movable handrail comprises a cylindrical outer cylinder body 10, an inner cylinder body 20 rotatably arranged inside the outer cylinder body 10, a shaft member 30 penetrating through the inner cylinder body 20, a movable body 40 arranged in the inner cylinder body 20, forming an inclined face 41 for gradually thinning toward any one opening part of the inner cylinder body 20 and rockably installed around the shaft member 30 thereby, an engaging projection part 45 arranged on the opposite side of the inclined face 41, and an engaging recessed part 55 for putting the movable body 40 in a rotatable state in the horizontal direction by releasing engagement with the engaging projection part 45 when lifting and inclining the movable body 40 and fixing the engaging recessed part 55 by engaging with the engaging projection part 45 when returning the movable body 40 to a horizontal state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a movable handrail that is movable in the horizontal direction. More specifically, the handrail that is horizontally fixed can be rotated in the horizontal direction by slightly lifting and tilting the handrail fixed in the horizontal state. It is related with the movable handrail fixed in the position when returning to a horizontal state in a predetermined position.

  Elderly people are said to have the highest risk of falling accidents in bathrooms, toilets and on the move. For this reason, handrails are often provided from the viewpoint of preventing such a fall accident, and this is one effective fall prevention measure. Today, various handrails have been developed. At present, handrails are installed not only in bathrooms and toilets but also in various places such as stairs and corridors even in ordinary homes.

  However, in conventional houses, there are many cases that are not designed in consideration of the space for installing the handrail at the time of construction, and the space in the bathroom and toilet becomes narrow because the handrail was installed later. In some cases, it was impossible to secure a sufficient space, so there was a case where the installation of the handrail had to be abandoned, and it could not be said that the user's needs were fully answered.

  Therefore, the handrail is made movable, and when used, the handrail is rotated so that it is perpendicular to the wall surface, and when the handrail is not used, the handrail body is rotated so as to be in contact with the wall surface. Handrails that enable this were developed, and efforts were made to make effective use of narrow spaces. With the advent of such movable handrails, problems such as securing space when installing handrails in conventional homes are being solved. As such a movable handrail, for example, Japanese Utility Model Publication No. 2-3358 (Patent Document 1), Japanese Patent Application Laid-Open No. 11-117484 (Patent Document 2), Japanese Patent Application Laid-Open No. 07-207869 (Patent Document 3) are proposed. .

  However, in the movable handrail disclosed in Patent Documents 1 to 3, for example, for an elderly person who needs a handrail, the operation of holding the handle and rotating the handrail body while pushing it forward is not always easy. In addition, there are problems such as it is difficult to fix the handrail body at the position intended by the user. Therefore, the inventor of the present invention solves these problems, makes the movable operation easy, and makes the movable mechanism as simple as possible to reduce the weight and secure the handrail securely. A patent application was filed for the purpose of providing a high movable handrail (Japanese Patent Application Laid-Open No. 2004-97483 (Patent Document 4)).

No. 2-3358 Japanese Patent Laid-Open No. 11-117484 Japanese Patent Laid-Open No. 07-207869 JP 2004-97483 A

The movable handrail disclosed in Patent Document 4 is easy to move compared to conventional movable handrails. In addition, a simple movable mechanism reduces the weight and provides a highly safe movable handrail that can securely fix the handrail. We were able to.
However, from the viewpoint of manufacturing, the manufacturing is not always easy. For example, since the handrail material can be fixed at a fine angle, the engaging convex portion and the fitting concave portion are in the form of a gear having a large number of meshing portions, and are provided at two locations in the vertical direction. In practice, such a fine rotation angle is not required, and the strength when the handrail material is fixed can be improved by making the meshing part a little rougher.
In addition, if the manufacturing cost is reduced, it can be easily installed even in ordinary homes, so that it is possible to prevent many elderly people from falling over and reduce the burden on caregivers.

  Therefore, the present invention has been made in view of such problems, and an object thereof is to provide a movable handrail that is simple in structure and high in safety, and that can reliably rotate and fix the handrail. Another object of the present invention is to provide a movable handrail that can be easily manufactured by further improving the structure of the conventional movable handrail and can further increase the strength when the handrail is fixed. As a result, the cost can be reduced and it can be used in many homes.

  In order to solve the above-mentioned problems, the invention according to claim 1 is capable of rotating in the horizontal direction by slightly lifting and tilting the handrail fixed in the horizontal state, and the rotated handrail is predetermined. In the movable handrail fixed at that position when returned to the horizontal position, a substantially cylindrical outer cylinder having a base member fixed to a wall surface and the like, and a rotatable handrail are disposed inside the outer cylinder. An inner cylindrical body, a shaft member inserted through the inner cylindrical body in the diameter direction, and a movable body that is inserted in the axial direction of the inner cylindrical body and has a handrail attached to at least one side of both ends thereof. A movable body that is gradually inclined toward one of the openings of the inner cylindrical body, and is thereby attached to be swingable about the shaft member, and the movable body is tilted An engaging projection provided on the side opposite to the surface side; A plurality of engagement recesses are provided along the inner side surface of the outer cylindrical body and engage with the engagement projections. When the movable body is lifted and inclined, the engagement with the engagement projections is released. The movable body is configured to be rotatable in the horizontal direction, and the engagement recess is configured to be engaged with and fixed to the engagement protrusion when the movable body is returned to the horizontal state. It is characterized by.

  According to the first aspect of the present invention, when the handrail material is in the horizontal direction, the engagement convex portion and the engagement concave portion are firmly fixed by being engaged. When the handrail is slightly inclined upward, the engagement between the engagement convex portion and the engagement concave portion is released, and the handrail can freely rotate in the horizontal direction. And if a user returns a handrail to a horizontal state in a predetermined position, an engaging convex part and an engaging concave part will engage, and it will be fixed firmly in that position. Such a handrail is suitable for mounting on a wall surface of a toilet or bathroom, for example.

  In order to solve the above-mentioned problem, the invention according to claim 2 is the movable handrail according to claim 1, wherein the engaging recess is provided on a disc-shaped engaging plate mounted inside the outer cylinder. It is characterized by.

  In order to solve the above-mentioned problem, the invention described in claim 3 is characterized in that, in the movable handrail described in claim 2, the attachment position of the engagement plate to the inside of the outer cylindrical body can be changed.

  In order to solve the above problem, the invention according to claim 4 is the movable handrail according to any one of claims 1 to 3, wherein a sliding material is interposed between the outer cylinder and the inner cylinder. It is characterized by.

  In order to solve the above-mentioned problem, the invention according to claim 5 relates to the movable handrail according to any one of claims 1 to 4, wherein the movable body is inclined by inclining an inclination angle of 5 ° to 15 °. The engagement between the mating convex portion and the engaging concave portion is released.

  As described above, according to the movable handrail according to the present invention, since it is easier to manufacture than the conventional movable handrail, it is possible to reduce the manufacturing cost, and it can be easily installed in various places including general homes. It is possible to prevent the elderly from falling and reduce the burden on the caregiver.

  Further, according to the movable handrail according to the present invention, since the structure is simple, there is little failure and high safety, and the handrail can be moved by a simple operation, so that even elderly people can reliably rotate and fix it. There is an effect that can be done.

  Hereinafter, an embodiment of a movable handrail according to the present invention will be described with reference to the drawings. 1 is a perspective view of an embodiment of a movable handrail according to the present invention, FIG. 2 is a cross-sectional view showing a case where the movable handrail shown in FIG. 1 is in a fixed state, and FIG. 3 is a state in which the movable handrail shown in FIG. 4 is a plan view of the movable handrail shown in FIG. 1, and FIG. 5 is a front sectional view of the movable handrail shown in FIG.

  First, the illustrated movable handrail 1 is roughly arranged in a substantially cylindrical outer cylinder 10 having a base member 11 fixed to a wall surface W and the like, and is rotatably disposed inside the outer cylinder 10. The inner cylinder 20, the shaft member 30 inserted so as to penetrate the inner cylinder 20 in the diametrical direction, and the axial direction of the inner cylinder 20 so that a handrail is attached to at least one side of both ends thereof. The movable body 40, the engagement convex portion 45 provided on the movable body 40, and the engagement concave portion 55 provided on the inner surface of the outer cylinder 10 so as to engage with the engagement convex portion 45. And is configured.

  As shown in FIG. 1, the outer cylindrical body 10 has a substantially cylindrical shape having a hollow portion at the center, and a flat plate-like support plate 13 is provided on the outer peripheral surface thereof, and a base member is provided on the opposite side of the support plate 13. 11 is provided. The base member 11 including the outer cylinder 10 and the support plate 13 is formed of, for example, a metal material, and these are integrally formed by welding, for example.

  The base member 11 is provided with a plurality of holes 11a and 11a for fixing the wall surface W by a fixing member such as a screw member (not shown). When the base member 11 is fixed to the wall surface W, it is possible to fix it using an adhesive instead of a fixing member such as a screw. In this case, holes 11a and 11a are provided in the base member 11. It does not have to be.

  An inner cylinder 20 is housed inside the outer cylinder 10 and is freely rotatable. In the present embodiment, the sliding material 60 is interposed between the outer cylinder 10 and the inner cylinder 20, so that the relative rotational movement between the outer cylinder 10 and the inner cylinder 20 is smoothly performed. It has come to be. The sliding material 60 is realized by reducing the frictional resistance of the surface in contact with the outer peripheral surface of the inner cylinder 20, that is, the outer peripheral surface of the sliding material 60. For example, the sliding material 60 may be formed of a taxable resin, and a lubricant may be interposed on the outer peripheral surface of the sliding material 60. The inner cylinder 20 is also formed of a metallic material, like the outer cylinder 10.

  A holding plate 25 is fitted to the upper side of the inner cylinder 20 housed in the outer cylinder 10, while a disc-shaped engaging plate 50 is fitted to the lower side. The engagement plate 50 prevents the inner cylinder 20 from falling off the outer cylinder 10.

  As shown in FIG. 2, a shaft member 30 is inserted into the inner cylinder 20 so as to penetrate the circular cross section of the inner cylinder 20 in the diameter direction.

  The movable body 40 is inserted into the inner cylinder 20 along the axial direction passing through the center of the circular cross section of the inner cylinder 20. At both ends of the movable body 40, handrail attachment bodies 3 and 3 having bent portions 3a and 3a bent at 90 ° are provided, and handrails 5 and 5 are attached to the handrail attachment bodies 3 and 3, respectively. It has been. The attachment of the handrails 5 and 5 to the handrail attachment bodies 3 and 3 is not particularly limited, and can be attached by a fastening fixing member such as a screw. The handrail 5 in the present embodiment is a U-shaped handrail as shown in FIG. 8, and the end portions of the handrail attachment bodies 3 and 3 in which the two end portions of the U-shaped handrail are respectively positioned up and down. Is attached. Of course, the handrail is not limited to such a shape. For example, a straight handrail can be attached to one of the two handrail attachment bodies 3 and 3.

  As shown in FIG. 2, the side surface of the movable body 40 is formed such that the opposite side to the wall surface W side is gradually narrowed toward the opening on the lower side of the inner cylindrical body 20, and as a result, the movable body 40 is movable. The side surface of the body 40 opposite to the wall surface W is an inclined surface 41. Thereby, the movable body 40 can swing around the shaft member 30. That is, since it is set as the inclined surface 41 in which the clearance gap between the inner surface of the inner cylinder 20 and the movable body 40 became large as it went to the lower part side, as shown in FIG. 3, the handrail 5 is lifted upwards. The movable body 40 is inclined toward the wall surface W around the shaft member 30. Then, when the inclined surface 41 abuts against the inner surface of the inner cylindrical body 20, further inclination is prevented and no further inclination occurs. still. The inclined surface 41 should just be made to become thin gradually toward the opening part of any one side of the inner cylinder 20. As shown in FIG.

  On the other hand, the side surface opposite to the side on which the inclined surface 41 of the movable body 40 is formed is a side surface that is parallel to the inner surface of the inner cylindrical body 20, and in the vicinity of the lower side of the side surface, A protruding engagement protrusion 45 is formed. The engaging convex portion 45 functions to prevent the movable body 40 from rotating in the horizontal direction by engaging with the engaging concave portion 55 provided in the outer cylindrical body 10 when the movable body 40 is in the vertical state. To do.

  Here, although the engagement recessed part 55 may be provided in the inner surface of the outer cylinder 10, in the case of this embodiment, it is provided in the engagement board 50 which is another member. FIG. 6 shows a plan view of the engagement plate 50. The engagement plate 50 is attached from the lower side of the outer cylindrical body 10 and serves to hold the inner cylindrical body 20 so as not to drop out of the outer cylindrical body 10 as described above. As shown in FIG. 6, the engagement plate 50 is formed with three engagement recesses 55 into which the engagement protrusions 45 are inserted. And the engagement recessed part 55 provided in three places is formed in the circumferential direction which the movable body 40 rotates, and 45 degree intervals. Thereby, the movable body 40 can be rotated in the horizontal direction and fixed at angles of 0 °, 45 °, and 90 °, respectively. In addition, as shown in FIG. 7, the attachment position of the engagement plate 50 can be changed as appropriate.

  As shown in FIG. 7, the engagement position of the engagement plate 50 inside the outer cylindrical body 10 can be changed. Thereby, the rotation direction of the handrails 5 and 5 can be selected suitably according to the situation of an installation place, and the free installation which does not choose an attachment place is attained. The change of the attachment position of the engagement plate 50 to the outer cylindrical body 10 can be realized only by changing the fitting position. For example, a plurality of attachment holes 59a are provided in the circumferential direction on the surface of the engagement plate 50, and It is also possible to perform alignment by inserting holes at predetermined angles (for example, at 45 ° intervals) and inserting pins 59 into predetermined attachment holes 59a.

  The movable body 40 is inclined within an inclination angle range of 5 ° to 15 °, more preferably within a range of 6 ° to 8 °, so that the engagement convex portion 45 and the engagement concave portion 55 are engaged. It is preferable to be configured to be released. If the engagement between the engagement convex portion 45 and the engagement concave portion 55 is released at a small inclination angle, it may cause a malfunction, which is rather dangerous. On the other hand, if a larger inclination angle is required, it is used. This is because selfishness worsens.

  Next, the operation of the movable handrail 1 described above will be described. The description starts from a state in which the handrails 5 and 5 are positioned in a direction perpendicular to the wall surface W. In this case, the engagement protrusion 45 is assumed to be at the position “A” among the three engagement recesses 55 shown in FIG. 6.

  First, as shown in FIGS. 1 and 2, the handrails 5 and 5 that are perpendicular to the wall surface W are lifted upward, and the movable body 40 is tilted (state of FIG. 3). Then, the movable body 40 is inclined with the shaft member 30 as the center, and the inclined surface 41 comes into contact with the inner side surface of the inner cylindrical body 20. At this time, the inclination angle of the handrails 5 and 5 is in the range of 5 ° to 15 °, preferably 6 ° to 8 °. Then, the engagement convex part 45 is separated from the engagement concave part 55, and the engagement is released. As a result, the inner cylinder 20 can be freely rotated with respect to the outer cylinder 10.

  While the handrails 5 and 5 are inclined upward, the handrails 5 and 5 are rotated in the horizontal direction. For example, when the handrails 5 and 5 are rotated by 45 ° from the initial state and then returned to the horizontal state, the engaging convex portion 45 engages with the engaging concave portion 55 located at “B”, where Fixed. Then, when the handrails 5 and 5 are lifted again from this state, the movable body 40 is tilted and rotated to engage the engagement convex portion 45 with the engagement concave portion 55 of “C”, the handrails 5 and 5 become the wall surface W. The handrails 5 and 5 are brought into a state of being perpendicular to the wall surface W and returned to their original positions when engaged with the engagement recess 55 of “A” again.

  As described above, according to the movable handrail 1 according to the present invention, a disabled person or the like can rotate the handrails 5 and 5 by an extremely simple operation, so that the handrail 5 and 5 can be safely moved and Because it can stand up and crouch down, the risk of falling is reduced.

  In addition, since the handrails 5 and 5 can be moved to an unobstructed position, movement and operation space can be secured, so that a physically handicapped person such as an elderly person can enter the room while staying in a wheelchair. Can be used. Even when an assistant is necessary, it is easy to secure a space for assistance.

It is a perspective view of one embodiment of a movable handrail according to the present invention. It is a cross-sectional view which shows the case where the movable handrail shown in FIG. 1 exists in a fixed state. It is a cross-sectional view which shows the case where the movable handrail shown in FIG. 1 is in a movable state. It is a top view of the movable handrail shown in FIG. It is front sectional drawing of the movable handrail shown in FIG. It is a bottom view of an engagement plate. It is a bottom view of the engagement board which shows the state which changed the position of the engagement recessed part. It is a partial side view which shows the inclination-angle of a handrail.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Movable handrail 3 Handrail attachment body 3a Bending part 5 Handrail 10 Outer cylinder 11 Base member 11a Hole part 13 Support plate 20 Inner cylinder 25 Press plate 30 Shaft member 40 Movable body 41 Inclined surface 45 Engagement convex part 50 Engagement plate 55 Engaging recess 59 Pin 59a Mounting hole 60 Sliding material

Claims (5)

The handrail fixed in the horizontal state can be rotated in the horizontal direction by slightly lifting and tilting upward, and the movable handrail is fixed in that position when the rotated handrail is returned to the horizontal state in a predetermined position In the handrail,
A substantially cylindrical outer cylinder having a base member fixed to a wall surface or the like;
An inner cylinder that is rotatably arranged inside the outer cylinder;
A shaft member inserted so as to penetrate the inner cylindrical body in the diameter direction;
A movable body that is inserted in the axial direction of the inner cylindrical body and has handrails attached to at least one side of both ends thereof, and gradually decreases toward one of the openings of the inner cylindrical body. A movable body that is formed so as to be swingable about the shaft member.
An engaging convex portion provided on the side opposite to the inclined surface side of the movable body, and
A plurality of engaging recesses that are provided along the inner surface of the outer cylindrical body and engage with the engaging protrusions, and when the movable body is lifted and inclined, the engagement with the engaging protrusions is released. And the movable body becomes rotatable in the horizontal direction, and when the movable body is returned to the horizontal state, the engagement concave portion is engaged and fixed with the engagement convex portion,
A movable handrail characterized by comprising: The movable handrail according to claim 1,
The movable handrail, wherein the engaging recess is provided on a disc-shaped engaging plate mounted inside the outer cylindrical body. The movable handrail according to claim 2,
The movable handrail, wherein the engagement plate is capable of changing a mounting position inside the outer cylindrical body. In the movable handrail of any one of Claims 1-3,
A movable handrail, wherein a sliding material is interposed between the outer cylinder and the inner cylinder. In the movable handrail of any one of Claims 1-4,
The movable handrail is characterized in that the movable body is disengaged from the engagement convex portion and the engagement concave portion by inclining an inclination angle of 5 ° to 15 °.

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