JP3158736U - Movable handrail - Google Patents

Abstract

An object of the present invention is to provide a vertically movable handrail which is locked when the handrail is in a use posture and is safe in use and is easy to operate and inexpensive. In a handrail use posture U, the handrail member 2 is fixed and locked by engagement of a lock member built in a lock handrail member 24 connected to a lower handrail portion 21 and a hook receiving portion 33. The handrail material 2 is turned to the storage posture S by being able to be unlocked by the operation of the operation handle 52 which is connected to the member by the operation rod and interlocked. [Selection] Figure 1

Description

  The present invention relates to a movable handrail attached to a wall surface of a toilet or the like.

  In recent years, handrails are often provided in the toilet room for use in assisting when standing and sitting. The toilet room is often small, and even if it is a relatively large room provided for wheelchair users, the problem is that the handrail becomes an obstacle for wheelchair users before and after sitting on the toilet. There are many movable handrails that can be accommodated by moving the handrails to the wall surface to solve this problem.

  However, even with such movable handrails, there are few that have a mechanism to fix the handrail in the state of use, so that the handrail rotates due to the increase or decrease of the force, or when it hits the handrail unexpectedly If it jumps up, it is dangerous.

  Japanese Patent Application Laid-Open No. 2004-133867 is one that has been made to solve such a problem. Patent Document 1 states that “a movable handrail attached to a wall surface of a building so as to be rotatable in the forward and reverse directions and a fixed-side member that stops the rotation of the movable handrail by contacting the end of the movable handrail. And a pair of lock members provided on the movable handrail and the fixed side member so as to be detachable from each other and locking the rotation of the movable handrail by engagement, and the engagement of the pair of lock members. An unlocking operation member operated to release the lock and an unlocking piece that is rotated by an operation on the unlocking operation member, and the unlocking piece and one of the pair of locking members are movable. It is rotatably attached to an axis different from the axis of rotation of the handrail, and in the direction of releasing the one lock member from the engagement with the other lock member in conjunction with the rotation of the lock release piece. The interlocking mechanism to rotate is the lock The detachable piece and the one lock member are detachably provided. When the engagement of the pair of lock members is released, the rotation of the lock release piece is stopped and the disengaged state of the pair of lock members is maintained. The present invention relates to a handrail device characterized in that a lock release maintaining mechanism is provided detachably on the lock release piece and the other lock member.

  By adopting such a configuration, a lock mechanism that locks the handrail in the horizontal position is provided, and the unlocked state is maintained by the lock release maintaining mechanism so that the handrail can be stored without using both hands. It is a thing.

  However, in Patent Document 1, since the lock mechanism is built in a small lock block attached to the end of the movable handrail, in order to dispose the unlocking member forward in consideration of operability, the mechanism portion in the lock block The release operation member must be connected by a cable inserted into the movable handrail, and the assembly is troublesome.

  In addition, since the release piece in the small lock block is directly pulled and rotated by the cable, its operating distance is very small, and if the spring force biased to the locked state is weak, it is easy to be released inadvertently, and the spring force is If it is weak, there is a problem that a large amount of force is required for operation.

Japanese Patent No. 3780423

  An object of the present invention is to solve the above problems and to provide a vertically movable handrail that is locked and safe in use when the handrail is in a use posture, is easy to operate, and is inexpensive.

  The present invention is a vertically movable handrail composed of a bracket material fixed to a wall surface, and a substantially U-shaped handrail material provided so as to be pivotable in the longitudinal direction with respect to the bracket material. A plate-shaped main body portion, a pair of bearing portions for fixing the rotating shaft portion of the handrail material, and a hook receiving portion, the handrail material being a straight bar-shaped upper handrail portion and a lower handrail portion, and an arc shape And an intermediate handrail portion that is bent into a generally U-shape, and is connected to the bracket material by a rotating shaft portion provided at an end portion of the upper handrail, and an end portion of the lower handrail portion Is formed in a hollow tubular shape, and is connected to a lock handrail material including a lock member, and the lock handrail material has a hook portion that is detachably attached to the hook receiving portion of the bracket material. The lock A connecting member that is slidably inserted in the lower handrail portion in the longitudinal direction, and an operating rod that connects the hook portion and the connecting member so as to be interlocked with each other, the connecting member including the lower handrail. The present invention relates to a longitudinally movable handrail characterized in that it is connected to an operation handle that is slidably provided on an outer peripheral portion of the portion.

  The locking member is slidable on the hollow cylindrical body, the hollow cylindrical body inserted into and fixed to the lock handrail material, the hook portion pivotally supported on the hollow cylindrical body, and the like. And a sliding piece connected to one end of the operating rod, and by sliding the sliding piece on an inclined surface formed on the lower surface of the hook part, the hook part is The present invention relates to a vertically movable handrail characterized by being rotated.

  By using the vertically movable handrail of the present invention, the handrail is surely locked with respect to the bracket in the use posture, so that the handrail can be prevented from unexpectedly jumping up and safety can be improved. Moreover, it can be easily manufactured only by connecting the vertically movable handrail and the lock handrail material incorporating the lock mechanism. Furthermore, since the slide piece connected to one end of the operation rod and the inclined surface of the hook portion are in sliding contact with each other, the slide operation of the operation handle is converted into the rotation of the hook portion. However, it is not possible to release the lock at a certain level, and the lock can be reliably released by an easy operation.

1A and 1B are perspective views showing a usage state of a vertically movable handrail according to the present invention, wherein FIG. 1A shows a use posture and FIG. 1B shows a storage posture. 2A and 2B are side views in which a part of the vertically movable handrail according to the present invention is broken, and FIG. 2A shows a state in which the handrail portion is locked, and FIG. 2B shows a state in which the lock is released. FIG. 3 is a side view in which a part of the vertically movable handrail according to the present invention is broken, and shows a storage state in which the handrail portion is stored. FIG. 4 is an enlarged cross-sectional view showing the vicinity of the bracket among the broken portions in FIGS. 2 (a) and 2 (b). FIG. 5 is an enlarged cross-sectional view showing the vicinity of the operation handle among the broken portions in FIGS. 2 (a) and 2 (b).

  EMBODIMENT OF THE INVENTION Below, the form for implementing the vertical movable handrail which concerns on this invention is demonstrated with reference to drawings. FIG. 1 is a perspective view showing a usage state of a vertically movable handrail 1 according to the present invention, where (a) shows a use posture U and (b) shows a storage posture S.

  A vertically movable handrail 1 according to the present invention is a handrail mainly provided in a toilet room as shown in FIGS. 1 (a) and 1 (b), and is used by being fixed to a wall surface W behind a western toilet T. When the person sits on the toilet bowl T, it is provided so as to be located on the side of the user. In this figure, an example in which the handrail 1 is provided so as to be positioned on the right side of the user is shown, but it may be provided on the left side of the toilet T or on both sides as necessary.

  When the vertically movable handrail 1 according to the present invention is used, as shown in FIG. 1 (a), the handrail material 2 is placed in a horizontal use posture U to assist the user in standing or sitting. Used to support In this state, the lock member 4 (see FIG. 2) built in the lock handrail member 24 connected to the lower handrail portion 21 of the handrail material 2 is held in a state of being engaged with the hook receiving portion 33 of the bracket material 3. Therefore, the handrail material 2 is not unexpectedly rotated, and an accident is prevented.

  If the user can walk, the user can sit around the handrail 1 even in the state of FIG. 1 (a). However, if the user moves with a wheelchair, the handrail 1 becomes an obstacle to the toilet. There is a problem that T cannot be approached.

  In such a case, as shown in FIG. 1 (b), the handrail member 2 is placed in the storage posture S in which the handrail member 2 is rotated in the vertical direction so that the wheelchair can be brought close to the toilet bowl T. In the vertically movable handrail 1 according to the present invention, the handrail material 2 can be accommodated by easily releasing the engagement between the lock member 4 and the hook receiving portion 33 by the sliding operation of the operation handle 52.

  2 (a), 2 (b), and 3 are sectional views taken around the lock member 4 and the connection member 5 of the vertically movable handrail 1 according to the present invention, and show the internal structure. FIG. 2A is the same state as FIG. 1A, and the lock member 4 is in an engaged state. FIG. 2B shows a state in which the operation handle 52 is slid to release the engagement between the lock member 4 and the hook receiving portion 33 and the handrail material is not stored.

  3 is the same state as FIG. 1B, and the handrail material 2 is in the storage posture S. FIG. In this state, a rotary shaft portion 25 provided integrally with the end portion of the upper handrail portion 22 of the handrail material 2 is rotatably provided at the upper portion of the bracket material 3 with respect to the bearing portion 31 formed by bending a pair of left and right. It is done.

  A more detailed configuration is shown in FIGS. FIG. 4 is an enlarged cross-sectional view showing the vicinity of the bracket member 3 among the broken portions in FIG.

  The handrail material 2 is a hollow rod-like body and is made of metal such as stainless steel. As shown in FIGS. 1 and 2, the upper handrail portion 22 and the lower handrail portion 21 and an intermediate handrail portion 23 bent into an arc shape are formed in a generally inverted U-shape. Since the intermediate handrail portion 23 and the lower handrail portion 21 are divided, the lock member 4 and the connecting member 5 can be easily assembled in the handrail material 2. Moreover, you may give resin coating to the surface of the handrail material 2 as needed. In the present invention, the intermediate handrail portion 23 has a resin coating structure to prevent a crisp feel of the metal during use, or an antibacterial material is mixed into the resin layer to prevent bacterial growth. To improve usability and functionality.

  FIG. 4 shows a lock handrail member 24 connected to the lower handrail portion 21, and a cap member 26 is fitted to the end portion. The cap member 26 is made of synthetic resin and has a donut shape in which a through hole 261 is formed at the center, and an engagement edge 262 with an edge of the handrail material 2 is formed at the peripheral edge. The end of the handrail 2 has a metal cut surface exposed, and there is a risk of injury if it is left as it is. However, by providing the cap member 26 and covering it with the engaging edge 262, safety is improved. .

  A hollow tubular body 41 is built in and fixed to the lock handrail material 24. The hollow cylindrical body 41 is a cylindrical member made of an aluminum extruded profile, and has an outer diameter slightly smaller than the inner diameter of the handrail material 2. A groove-shaped guide part 411 is formed in the lower part of the interior in communication with the longitudinal direction. Further, a screw hole for screwing the hollow cylindrical body 41 to the handrail material 2 and a rotation shaft insertion hole 412 for locking a hook portion 43 described later so as to be rotatable are formed on the side surface. The screw hole and the rotation shaft insertion hole 412 are provided in a penetrating manner in the horizontal direction.

  A semicircular lid 42 is screwed and locked to both ends of the hollow cylindrical body 41 so as to cover the guide portion 411. An operating rod insertion hole 421 is formed at a substantially central portion of the lid 42. About the lid | cover 42, the thing in which the operating rod insertion hole 421 was formed is used for both sides for cost reduction.

  In addition, about the hollow cylindrical body 41, although the example manufactured with an aluminum extrusion mold material is described in this embodiment, as long as an equivalent function is exhibited, there is no problem even by die casting or other manufacturing methods. .

  Next, the hook portion 43 that is fixed to the rotation shaft insertion hole 412 provided in the hollow cylindrical body 41 will be described. The hook part 43 is a cast product made of a manufacturing method such as lost wax, and a hook-like part 431 is formed at the end part of the handrail material 2 end side (wall surface W side), and at the opposite end part. A shaft insertion hole 432 is provided at a position corresponding to the rotation shaft insertion hole 412 provided in the hollow cylindrical body 41, and the hollow cylindrical body 41 and the hook portion 43 have the rotation shaft 44 in the shaft insertion hole 432. By being inserted, it is pivotally pivoted.

  Further, a spring accommodating recess 433 is provided around the shaft insertion hole 432 of the hook portion 43, and a spring member 434 for urging the hook portion 43 in the counterclockwise direction in FIG. Provided. Thereby, although the force which always tries to rotate acts on the hook part 43, among the lid | covers 42 provided before and behind the hollow cylindrical body 41, the hook part 43 is attached to the upper end edge of the lid | cover 42 by handrail material 2 edge part side. It is provided so that the lower surface of the intermediate portion is in contact, and limits the rotation range on the lock side. Moreover, the inclined surface 435 is formed in the lower surface of the hook part 43 so that thickness may increase toward the rotation axis 44 direction.

  The slide piece 45 is provided so as to slide in the guide portion 411 formed in the hollow cylindrical body 41, and a shaft locking piece 451 protrudes downward from one end of an operation rod 46 described later. Parts are connected. An inclined portion 441 is formed on the upper surface of the end portion on the rotating shaft 44 side. When the slide piece 45 moves in the guide portion 411 by the operation of the operation rod 46, the inclined portion 441 contacts the inclined surface 435 formed on the lower surface of the hook portion 43, and the hook portion 43 is moved to the timepiece shown in FIG. Rotate in the turning direction, that is, in the unlocking direction.

  The operating rod 46 is made of a stainless steel bar and is provided for interlocking the lock member 4 and the connecting member 5. At the end 461 on the lock member 4 side, a spring 452 is provided between the outer surface of the shaft locking piece 451 of the slide piece 45 and the inner surface of the lid 42 on the rotating shaft 44 side of the hollow cylindrical body 41. The slide piece 45 is urged in the locking direction to prevent the engagement of the lock member 4 from being unexpectedly released due to vibration or the like.

  In the use posture, as shown in FIG. 4, the hook receiving portion 33 enters the lock handrail material 24 through the through hole 261 at the center of the cap member 26 and is in an engaged state with the hook portion 43.

  FIG. 5 shows an operation handle 52 provided near the middle part of the lower handrail part 21. The operation handle 52 is provided so as to be interlocked with the connecting member 5 inserted into the lower handrail portion 21 and is formed integrally with a cylindrical portion 51 that holds the lower handrail portion 21. The cylindrical part 51 is a cylindrical member formed so as to contain the handrail material 2 and is made of a synthetic resin such as ABS. A horizontal shaft insertion hole 511 is provided in the intermediate portion, and a connection shaft 534 for interlocking the connection member 5 and the operation handle 52 is inserted.

  The guide member 53 includes a guide portion 531 and a main body portion 532. The guide portion 531 is formed in a disc shape having substantially the same diameter as the inner diameter of the handrail material 2 so that the unlocking operation can be performed smoothly. A set of guide portions 531 is formed at both ends in the longitudinal direction.

  The main body portion 532 is formed between the pair of guide portions 531, and a locking shaft insertion hole 535 is formed in the intermediate portion. An operation rod insertion hole 533 is formed in the center portion of the guide portion 531 on the handrail 2 end side, and the operation handle side end portion 462 of the operation rod 46 is fixed. A spring 463 is provided between the inner side surface of the guide portion 531 on the handrail material 2 end side and the operation handle side end portion 462 of the operation rod 46, and the operation handle 52 is returned to the original position after the slide operation. To be done. A spring accommodating space 465 for accommodating the spring 463 is formed at the operating handle side end 462 of the operating rod 46 by using a fixing member 464 such as a C ring.

  The locking shaft insertion hole 535, the shaft insertion hole 511 of the tubular portion 51, and the long hole-shaped insertion hole 26 formed in the handrail 2 are locked by the connecting shaft 534 so that the operation handle 52 slides. The guide member 53 is interlocked with the operation, and a force in the unlocking direction is transmitted to the lock member 4 via the operation rod 46.

  In addition, a spring member (not shown) is built in the rotary shaft portion 25 that is rotatably provided on the bracket member 3, and is always provided to bias the handrail material 2 toward the storage posture S side. . Thus, when the lock is released by the operation of the operation handle 52, it is rotated in the vertical direction without applying much force, and comes into contact with the pressing piece 32 provided on the bracket material 3 to be in the storage posture S. After the settling position S is settled, the handrail material 2 does not fall naturally and is safe.

  With the configuration as described above, in the vertically movable handrail 1 of the present invention, when the handrail material 2 is in the use posture U, it is securely fixed by the engagement between the lock member 4 and the hook receiving portion 33 and is safe. In addition, since the lock can be released by the sliding operation of the operation handle 52, it is possible to provide a vertically movable handrail that can be reliably unlocked by an easy operation without malfunction.

DESCRIPTION OF SYMBOLS 1 Vertical movable handrail 2 Handrail material 21 Lower handrail part 22 Upper handrail part 23 Intermediate handrail part 24 Lock handrail material 25 Rotating shaft part 26 Cap member 261 Through-hole 262 Engagement edge 3 Bracket material 31 Bearing part 32 Holding piece 33 Hook receiving part DESCRIPTION OF SYMBOLS 4 Lock part 41 Hollow cylindrical body 411 Guide part 412 Rotating shaft insertion hole 42 Lid 421 Operation hook insertion hole 43 Hook part 431 Hook part 432 Shaft insertion hole 433 Spring accommodating part 434 Spring member 435 Inclined surface 44 Rotating shaft 441 Inclination Part 45 Slide piece 451 Shaft locking piece 452 Spring 46 Operation rod 461 Lock part side end 462 Operation handle side end 463 Spring 464 Fixing member 465 Spring accommodating space 5 Connection member 51 Cylindrical part 511 Shaft insertion hole 52 Operation handle 53 Guide member 531 Guide portion 532 Main body portion 533 Operation rod insertion hole 534 Connecting shaft 535 Locking shaft insertion hole T Toilet bowl S Storage posture U Usage posture W Wall surface

Claims (2)

A vertically movable handrail composed of a bracket material fixed to a wall surface, and a substantially U-shaped handrail material provided to be pivotable in the longitudinal direction with respect to the bracket material,
The bracket material includes a plate-shaped main body portion, a pair of bearing portions for fixing the rotating shaft portion of the handrail material, and a hook receiving portion,
The handrail material is formed in a substantially U-shape by a straight bar-shaped upper handrail portion and a lower handrail portion, and an intermediate handrail portion bent in an arc shape, and is provided at the end of the upper handrail. It is connected to the bracket material by a shaft part,
The end of the lower handrail part is formed in a hollow tubular shape, and a lock handrail material incorporating a lock member is connected,
The lock handrail material includes the lock member having a hook portion that is detachably provided with respect to the hook receiving portion of the bracket material, and a connecting member that is slidably inserted into the lower handrail portion in a longitudinal direction. And an operating rod that connects the hook portion and the connecting member so as to be interlocked, and the connecting member is connected to an operation handle that is slidably provided on an outer peripheral portion of the lower handrail portion. A vertical movable handrail. The locking member is fitted into the hollow cylindrical body so as to be slidable, a hollow cylindrical body inserted into and fixed to the lock handrail material, a hook portion pivotally supported by the hollow cylindrical body. And a slide piece connected to one end of the operation rod.
The vertically movable handrail according to claim 1, wherein the hook portion is rotated by sliding the slide piece on an inclined surface formed on a lower surface of the hook portion.

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