JP4299626B2 - Bathroom chair - Google Patents

Description

  The present invention relates to a bathroom chair suitable for assisting elderly people, physically disabled people, sick people, and the like.

  It is convenient for elderly people, physically handicapped persons, sick people, etc. to sit on a chair and wash their body when taking a bath. Conventionally, various bathroom chairs have been proposed.

For example, Patent Literature 1 describes a bathroom chair provided with an armrest formed by bending a metal pipe into a U shape. The armchair of this bathroom chair is configured so that it can be changed between the mounting position that stands up from both sides of the seat and the mounting position that extends forward from both sides of the backrest. The mounting position of the armrest is changed according to the body shape, the degree of obstacles, and the usage situation.
JP 2002-325648 A

  However, in the bathroom chair described in Patent Document 1, in order to change the position of the armrest, it is necessary to remove the screw fixing the armrest, move the armrest, and then attach it again, which is complicated.

  In addition, the armrest is fixed to the seat with screws so as to close both sides of the upper part of the seat, so that the user's body can be transferred only from the front of the bathroom chair. There wasn't. For this reason, for example, when a user sits on a bathroom chair and washes his / her body, the user needs to change the orientation of the chair in a narrow bathroom, which places a heavy burden on the user and the caregiver. In order to reduce this burden, it is preferable that the user can be transferred from the side of the chair, but for this purpose, it is necessary to remove the armrest, and it is difficult to attach and detach the armrest one by one in the bathroom.

  The present invention has been made in view of such problems, and is capable of rotating the armrest between the use position and the flip-up position, and holding the armrest securely in the use position. It is an object of the present invention to provide a bathroom chair that can prevent the armrest from being flipped up.

The present invention includes a seat attached to a leg, a backrest attached to the leg or the seat, a substantially horizontal use position attached to the backrest and extended forward from both sides of the backrest, and an upper portion of the seat A bathroom chair comprising a pair of armrests that are pivotable about a horizontal axis across a flip-up position that is open on the side , wherein the armrests are bent in a U shape and are upper and lower sides. An armrest body, a guide pipe fixed to the backrest and rotatably inserted into the lower end portion of the armrest body, and a switching pipe rotatably inserted in the vicinity of the upper end portion of the armrest body. A pipe catch fixed to the backrest and detachable from the switching pipe, and a plurality of urges to protrude outwardly at intervals in the axial direction provided in the vicinity of the tip of the upper side of the armrest body The switch pipe is composed of a lock pin and a plurality of stopper pins that are provided near the tip of the lower side of the armrest body and are biased to protrude outwardly at the same interval as the interval of the lock pins. Has a plurality of holes corresponding to the plurality of lock pins, while the pipe catch has a single hole corresponding to the selected lock pin, and the guide pipe has a single hole. A single elongated hole is formed in the circumferential direction corresponding to the selected stopper pin, and at the position where the selected stopper pin is fitted in the elongated hole of the guide pipe, the lock pin is removed from the hole of the switching pipe. and the rotation non-restricted state in which fitted into the hole of the pipe catch is projected, the said switching pipe while concealing the lock pin to the inside of the switch pipe mounted to the pipe catch pushes the locking pin turning It is characterized in that it is selectable by rotating the regulating released state tolerated, the switching pipe.

  According to the present invention, it is possible to stably support the body of a user such as an elderly person by rotating each armrest to the use position. On the other hand, since the side of the bathroom chair is opened by turning the armrest to the flip-up position, the user can transfer from the side of the bathroom chair. Therefore, the burden on the user and the caregiver is reduced. In addition, if the armrest is in a restricted state, it is possible to reliably prevent the armrest from being lifted up unintentionally, preventing the armrest from being lifted up unintentionally and preventing the user from sliding down from the open side. it can.

In addition , the distance between the pair of armrests can be adjusted by selecting and fitting an arbitrary stopper pin to the elongated hole of the guide pipe, and the distance between the armrests can be adjusted according to the user's body shape. Since it can be used, it is easy to use. Then, at each adjustment position, if the switching pipe is rotated and the lock pin protrudes from the hole and is attached to the pipe catch, the lock pin corresponding to the selected stopper pin will be fitted into the hole of the pipe catch. Thus, the lower side portion of the armrest body can be restricted from rotating around the guide pipe. Therefore, it is possible to reliably prevent an unintentional jumping of the armrest, and to prevent the armrest from unintentionally rotating and sliding from the opened side. In addition, even if the user applies a downward load to the armrest, the lock pin is fitted in the hole of the pipe catch, so that the upper side of the armrest body is reliably prevented from falling off the pipe catch. Can be used safely.

  On the other hand, if the switch pipe is rotated and attached to the pipe catch in a state where the lock pin does not protrude from the hole, the lock pin will not fit into the hole of the pipe catch. Is allowed and the armrest can be flipped up and rotated.

  In the present invention, the upper side of the armrest main body is biased so as to protrude outwardly at intervals in the circumferential direction corresponding to the lock pins excluding the outermost lock pin in the vicinity of the distal end portion thereof. One or a plurality of detachment prevention pins are provided, a stopper is fixed to the tip of the pin, and the outer edge of the stopper or the detachment prevention pin is in contact with the inner edge of the pipe catch.

  According to the present invention, when the switching pipe is rotated and attached to the pipe catch in a state where the lock pin is concealed without protruding from the hole, the detachment prevention pin corresponding to the selected stopper pin is the hole of the switching pipe. The outer end edge of the stopper comes into contact with the inner end edge of the pipe catch. Therefore, even if the user applies a downward load to the armrest, the outer end edge of the anti-detachment pin or stopper contacts the inner edge of the pipe catch, and the upper side of the armrest body falls off the pipe catch. Can be reliably prevented and can be used safely.

According to the present invention, since the armrest can be rotated between the use position and the flip-up position, the user can transfer from the opened side by flipping up the armrest. Further, the armrest can be securely held at the use position to prevent unintentional jumping of the armrest, and the armrest can be used safely.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 3 show an embodiment of a bathroom chair 1 according to the present invention.

  The bathroom chair 1 includes a leg 2, a seat 3 attached to the leg 2, a backrest 4 attached to the leg 2, and a pair of armrests 5 attached to the backrest 4.

  The leg 2 is composed of a pair of leg main bodies 21 bent in a substantially U-shape, and four telescopic legs 22 slidably inserted into both end portions of the leg main body 21, respectively. For example, it is formed of an aluminum pipe excellent in rust prevention and light weight. The pair of leg main bodies 21 are not shown in detail, but are substantially flattened at substantially intermediate positions so as to intersect each other in an X shape, and the intersecting portions are screwed to be fixed integrally.

  Further, positioning pins 23 urged so as to protrude from the outer peripheral surface via springs (not shown) are provided in the vicinity of both end portions of the leg main body 21.

  On the other hand, each of the telescopic legs 22 is formed with a plurality of positioning holes 22a at set intervals corresponding to the positioning pins 23 provided on the leg body 21, and the positioning pins 23 are fitted into the positioning holes 22a. By combining, the amount of expansion / contraction of the expansion / contraction leg 22 with respect to the leg main body 21 can be adjusted. A cap 24 is screwed into the upper end of each telescopic leg 22. By tightening the cap 24, the gap between the outer peripheral surface of the leg main body 21 and the inner peripheral surface of the telescopic leg 22 is reduced. Can be prevented. Further, a leg rubber 25 is attached to the lower end portion of each telescopic leg 22 to prevent the washing scene from being damaged or slipping.

  The material of the leg 2 may be iron or stainless steel in addition to aluminum.

  As shown in FIG. 4, the seat portion 3 is made of a plastic hollow seat body 31 having a concave portion at the front end, and a foam plastic made to match the seat body 31 and covering the entire upper surface of the seat body 31. The seat body 31 is screwed to the leg body 21 of the leg 2. A plurality of fitting holes 31 a are formed in the seat body 31, while a protrusion 32 a that can be fitted into the fitting hole 31 a of the seat body 31 is formed downward on the back surface of the cushion portion 32. Has been. Therefore, by fitting the protruding portion 32a of the cushion portion 32 into the fitting hole 31a of the seat body 31, the seat body 31 and the cushion portion 32 can be integrated to form the seat portion 3, and the cushion portion The seat 32 can be easily removed from the seat body 31 for cleaning or replacement.

As shown in FIG. 5, the backrest 4 is formed with a plastic hollow backrest body 41 in which a gripping hole 41 x into which a finger can be inserted is formed, and a gripping hole 42 x corresponding to the gripping hole 41 x of the backrest body 41. In addition, a foamed plastic cushion portion 42 that is formed in a shape that matches the backrest body 41 and covers the entire front surface of the backrest body 41, is bent into an approximately L shape, and one end is screwed to the back surface of the backrest body 41. The arm 43 includes a pair of arms 43 made of aluminum pipe, and the other end of each arm 43 is screwed to the leg body 21 of the leg 2. A plurality of fitting holes 41 a are formed in the backrest body 41, while a protrusion 42 a that can be fitted into the fitting holes 41 a of the backrest body 41 is formed on the back surface of the cushion portion 42. Has been. Therefore, the backrest 4 can be formed by integrating the backrest main body 41 and the cushion portion 42 by fitting the protruding portion 42a of the cushion portion 42 into the fitting hole 41a of the backrest main body 41, and the cushion portion 42. Can be easily removed from the backrest body 41 for cleaning or replacement.

  Although not shown, the protruding portion 42a of the cushion portion 42 has a shape having a frictional force to such an extent that it does not easily fall off with respect to the fitting hole 41a of the backrest body 41.

  The armrest 5 includes an armrest body 51 made of an aluminum pipe having a substantially parallel upper side portion 511 and a lower side portion 512 having a substantially middle portion bent in a U shape and a substantially rear half portion bent at a right angle when viewed from above. A pipe holder 52 fixed to the lower back of the backrest body 41 of the backrest 4 described above, a guide pipe 53 fixed to the pipe holder 52 so that both ends protrude beyond the side edges of the pipe holder 52, Holes 54a (see FIG. 7) into which lock pins 581 and 582, which will be described later, can be selectively fitted are formed, and a pipe catch 54 fixed to one end of each arm 43 of the backrest 4 and the armrest body 51 A switching pipe 55 that is rotatably inserted in the vicinity of the distal end portion of the upper side portion 511 and has an outer diameter that can be attached to and detached from the pipe catch 54, and the upper side portion of the armrest body 51 11 and a stopper 56 formed with a diameter larger than that of the switching pipe 55, and the distal end portion of the lower side portion 512 of the armrest body 51 is slidably fitted into the guide pipe 53. . And the substantially front half part of the upper side part 511 and the lower side part 512 including the U-shaped bending part of the armrest main body 51 is coat | covered with the cushion part 57 made from a plastic foam.

  On the other hand, as shown in FIG. 6 and FIG. 7, a plurality of urged so as to protrude from the outer peripheral surface via a spring (not shown), specifically, near the tip of the upper side 511 of the armrest body 51, specifically Two lock pins 581 and 582 are provided at intervals in the axial direction, and at intervals from the inner lock pin 582 in the circumferential direction, specifically, 180 degrees apart, a spring (not shown) is provided. A disengagement prevention pin 583 biased so as to protrude from the outer peripheral surface is provided. Furthermore, two holes 55a and 55b are formed in the switching pipe 55 along the axial direction at the same interval as the interval between the two lock pins 581 and 582 described above.

  Accordingly, by rotating the switching pipe 55 by 180 degrees, the lock pins 581 and 582 are projected through the holes 55a and 55b, and the disengagement prevention pin 583 is concealed (see FIGS. 6 and 7), as will be described later. In addition, it is possible to select a state in which the disengagement prevention pin 583 protrudes through the hole 55b and the lock pins 581 and 582 are concealed (see FIG. 9).

  In addition, at the distal end portion of the lower side portion 512 of the armrest main body 51, two urged so as to protrude from the outer peripheral surface via a spring (not shown) at the same interval as the interval between the lock pins 581 and 582. Stopper pins 591 and 592 are provided. And the elongated hole 53a which can selectively fit the stopper pins 591 and 592 is formed in the both ends of the guide pipe 53 along the circumferential direction, respectively (refer FIG. 3). The length of the long hole 53 a of the guide pipe 53 is set in the rotation range of the armrest 5. That is, when the armrest 5 is in a substantially horizontal use position (see FIG. 2), the stopper pins 591 and 592 abut against one inner edge of the elongated hole 53a and prevent further downward rotation, When the armrest 5 is rotated from the use position and is in a substantially vertical flip-up position (see FIG. 8), the stopper pins 591 and 592 are in contact with the other inner end edge of the elongated hole 53a and further upward. The rotation to is prevented.

  In addition, by pushing the stopper pins 591 and 592 and moving the armrests 5 in a direction toward or away from each other, the distance between the armrests 5 can be easily adjusted according to the body shape of the user.

Here, when the outer stopper pin 591 is fitted into the elongated hole 53 a of the guide pipe 53, the outer lock pin 581 can be fitted into the hole 54 a of the pipe catch 54 and the detachment prevention pin 583. Can contact the inner edge of the pipe catch 54 (see FIGS. 3, 7 and 9). Further, when the inner stopper pin 592 is fitted into the elongated hole 53a of the guide pipe 53 by pushing the outer stopper pin 591 and pulling the armrests 5 away from each other, the inner lock pin 582 is inserted. Can be fitted into the hole 54a of the pipe catch 54, and the outer end edge of the stopper 56 can be brought into contact with the inner end edge of the pipe catch 54 (see FIGS. 10 to 12).

  Next, a method of using the bathroom chair 1 having the above configuration will be described.

  In the initial state, as shown in FIGS. 3 and 7, the outer stopper pin 591 is fitted into the elongated hole 53 a of the guide pipe 53, and the outer lock pin 581 is inserted into the hole of the switching pipe 55. It is assumed that it protrudes from 55a and is fitted into the hole 54a of the pipe catch 54. That is, the armrest 5 is in a position where the interval is narrowed and in a substantially horizontal use position.

  In this state, the user can sit on the seat 3 and wash his body. At this time, the user can put the elbow on the armrest 5 or grasp the upper side 511 or the lower side 512 of the armrest main body 51 as appropriate, so that the body can be supported stably. Moreover, since the cushion part 57 of the armrest 5 contacts a user, a usability | use_condition is good. Furthermore, since the user's buttocks and back contact only the cushion portions 32 and 42 provided so as to cover the entire surface of the seat body 31 and the backrest body 41, it is possible to alleviate the coldness in winter and to improve the comfort of the user. Is good.

  Here, when the weight of the user acts on the armrest 5, since the lock pin 581 is fitted in the hole 54 a of the pipe catch 54, the upper side portion 511 of the armrest body 51 does not fall off from the pipe catch 54. , Securely held. In addition, even if the armrest 5 is grasped and is to be lifted upward, similarly, since the lock pin 581 is fitted in the hole 54a of the pipe catch 54, the upper side portion 511 of the armrest body 51 is detached from the pipe catch 54. Held without. Therefore, by inadvertently raising the armrest 5, it is possible to reliably prevent the side from being opened and the user from sliding down.

  When the body washing is completed, the armrest 5 is rotated to a substantially vertical flip-up position (see FIG. 8). Specifically, when the lock pin 581 is pushed in and released from the hole of the pipe catch 54, if the armrest body 51 is grasped and lifted upward, the outer stopper pin 591 becomes the elongated hole 53 a of the guide pipe 53. , The lower side portion 512 of the armrest main body 51 rotates around the guide pipe 53, and the switching pipe 55 is detached from the pipe catch 54. For this reason, it can be easily rotated to the flip-up position. At the flip-up position, the upper side of the seat portion 3 is opened, so that the user can transfer from the side of the bathroom chair 1 and the burden on both the user and the caregiver can be reduced.

  If the armrest 5 is not specifically restricted, the lock pin 581 is pushed in and released from the hole 54a of the pipe catch 54, and the armrest body 51 is grasped and lifted upward. The switch pipe 55 is detached from the pipe catch 54 by turning 512 around the guide pipe 53. Next, if the switching pipe 55 is rotated 180 degrees with the lock pin 581 pushed in, the lock pin 581 is concealed inward of the switching pipe 55 and the disengagement prevention pin 583 from the hole 55 b of the switching pipe 55. It protrudes (see FIG. 9). Thereafter, when the armrest 5 is pushed down, the lower side portion 512 of the armrest main body 51 rotates around the guide pipe 53, and the switching pipe 55 fitted into the upper side portion 511 can be attached to the pipe catch 54.

In this state, since the lock pin 581 is concealed by the switching pipe 55, even if the switching pipe 55 is attached to the pipe catch 54, the lock pin 581 does not fit into the hole 54 a of the pipe catch 54. Therefore, when the armrest 5 is lifted, the lower side portion 512 of the armrest body 51 rotates around the guide pipe 53, and the switching pipe 55, that is, the upper side portion 511 can be easily detached from the pipe catch 54.

  However, since the detachment prevention pin 583 protruding from the hole 55b of the switching pipe 55 is in contact with the inner end edge of the pipe catch 54, a downward force, for example, the weight of the user is applied to the armrest 5. However, the detachment prevention pin 583 abuts against the inner edge of the pipe catch 54, and the upper side 511 of the armrest body 51 is not dropped from the pipe catch 54 and is securely held.

  On the other hand, when the width of the armrest 5 of the bathroom chair 1 is expanded in accordance with the user's body shape, the armrest body 51 is grasped with the lock pin 581 pushed in and released from the hole 54a of the pipe catch 54. Lifting upward, the lower side portion 512 of the armrest body 51 is rotated around the guide pipe 53, and the switching pipe 55 is detached from the pipe catch 54. Next, when the stopper pin 591 is pushed in and pulled out in the direction of separating the armrest main body 51 from each other, the inner stopper pin 592 is fitted into the elongated hole 53a of the guide pipe 53, so that the interval between the stopper pins 591 and 592 is increased. The width of the armrest 5 can be expanded by a corresponding distance (see FIG. 10). Thereafter, the armrest 5 is pushed down, and the switching pipe 55 inserted into the upper side portion 511 of the armrest main body 51 is attached to the pipe catch 54.

  In this case, the inner lock pin 582 protruding from the hole 55b of the switching pipe 55 is fitted into the hole 54a of the pipe catch 54 (see FIG. 11). Even if the weight of the user acts on the armrest 5 in this state, the upper side portion 511 of the armrest body 51 is detached from the pipe catch 54 because the lock pin 582 is fitted in the hole 54a of the pipe catch 54. It is not. In addition, even if the armrest 5 is grasped and is to be lifted upward, similarly, since the lock pin 582 is fitted in the hole 54a of the pipe catch 54, the upper side portion 511 of the armrest body 51 is detached from the pipe catch 54. Held without. Therefore, the armrest 5 is inadvertently lifted up and the side is opened, and the user can be reliably prevented from sliding down.

  If the armrest 5 is not specifically restricted, the lower side 512 of the armrest body 51 is rotated around the guide pipe 53 and the switching pipe 55 is detached from the pipe catch 54 as described above. In a state where the lock pin 582 is pushed in, the switching pipe 55 is rotated 180 degrees, and the lock pin 582 is concealed by the switching pipe 55. Thereafter, the switch pipe 55 is attached to the pipe catch 54 by pushing down the armrest 5 (see FIG. 12).

  In this state, even if the switching pipe 55 is attached to the pipe catch 54, the lock pin 582 is hidden by the switching pipe 55, and therefore does not fit into the hole 54 a of the pipe catch 54. Therefore, when the armrest 5 is lifted, the lower side portion 512 of the armrest main body 51 rotates around the guide pipe 53, and the switching pipe 55, that is, the upper side portion 511 is easily detached from the pipe catch 54.

  By rotating the switching pipe 55 by 180 degrees, the detachment prevention pin 583 protrudes from the hole 55b, but when the switching pipe 55 is attached to the pipe catch 54, the detachment prevention pin 583 is shown in FIG. The pipe catch 54 is pushed into the same surface as the outer peripheral surface of the switching pipe 55.

In this case, since the outer edge of the stopper 56 abuts against the inner edge of the pipe catch 54, even if the weight of the user acts on the armrest 5, the stopper 56 contacts the inner edge of the pipe catch 54. The upper side 511 of the armrest body 51 can be prevented from falling off from the pipe catch 54.

  In the above-described embodiment, the case where the armrests 5 are adjusted to the two wide and narrow stages has been described. However, the armrests can be adjusted to three or more stages, and the width of the armrests may be fixed.

  Moreover, although the bathroom chair 1 which fixed the seat part 3 to the leg 2 was demonstrated, it can also be applied to the bathroom chair which supported the seat part 3 rotatably on the leg 2 via the rotation mechanism. In this case, instead of attaching the backrest 4 to the leg 2, the arm 47 of the backrest 4 may be fixed to the seat body 31 of the seat portion 3.

  As described above, according to the present invention, the armrest that can be rotated about the horizontal axis over the substantially horizontal use position and the flip-up position is set in a non-rotatable restricted state, so that the armrest is inadvertently raised. Therefore, it is possible to provide a safe bathroom chair that prevents a user from sliding off from an unintentionally opened side.

It is a perspective view which shows one Embodiment of the chair for bathrooms of this invention. It is a side view of the bathroom chair of FIG. It is a rear view of the bathroom chair of FIG. It is a disassembled perspective view of the seat part of the bathroom chair of FIG. It is a disassembled perspective view of the backrest of the bathroom chair of FIG. It is a rear view which abbreviate | omits and shows a part of armrest of the bathroom chair of FIG. FIG. 4 is a cross-sectional view showing the armchair of FIG. It is a side view which shows the state which turned the armrest of the bathroom chair of FIG. 1 to the flip-up position. FIG. 4 is a cross-sectional view illustrating a state where the armrest rotation restriction release state is partially omitted in the bathroom chair of FIG. 3. It is a rear view of the chair for bathrooms in the state where the width of the armrest was expanded. It is sectional drawing which abbreviate | omits and shows the rotation control state of an armrest in the bathroom chair of FIG. It is sectional drawing which abbreviate | omits and shows the rotation control cancellation | release state of an armrest in the bathroom chair of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathroom chair 2 Leg 21 Leg main body 22 Telescopic leg 3 Seat part 31 Seat main body 32 Cushion part 4 Backrest 41 Backrest main body 42 Cushion part 43 Arm 5 Armrest 51 Armrest main body 52 Pipe holder 53 Guide pipe 53a Slot 54 Pipe catch 54a Hole
55 switching pipe
55a, 55b holes
56 Stopper 581, 582 Lock pin 583 Detachment prevention pin 591, 592 Stopper pin

Claims (2)

A seat attached to the leg, a back attached to the leg or the seat , and a substantially horizontal use position attached to the back and extending forward from both sides of the back and the upper side of the seat open A bathroom chair comprising a pair of armrests that are pivotable about a horizontal axis across the raised position , wherein the armrest is bent in a U shape and has an upper side portion and a lower side portion And fixed to the backrest, a guide pipe that is fixed to the backrest and the lower end of the armrest body is rotatably inserted, a switching pipe that is rotatably inserted in the vicinity of the upper end of the armrest body, and the backrest A pipe catch that can be attached to and detached from the switching pipe, and a plurality of lock pins that are provided near the tip of the upper side of the armrest body and are urged so as to protrude outward at intervals in the axial direction. And a plurality of stopper pins provided in the vicinity of the lower end side end portion of the armrest main body and biased so as to protrude outwardly at the same interval as the interval of the lock pins. Has a plurality of holes corresponding to the plurality of lock pins, while the pipe catch has a single hole corresponding to the selected lock pin, and the guide pipe has A single elongated hole is formed in the circumferential direction corresponding to the selected stopper pin, and the lock pin protrudes from the hole of the switching pipe at the position where the selected stopper pin is fitted in the elongated hole of the guide pipe. The non-rotatable restricted state fitted in the hole of the pipe catch and the state where the lock pin is pushed in and the lock pin is hidden inside the switch pipe, the switch pipe is attached to the pipe catch and rotated. Allow Bathroom chair, which is a selectable by rotating control and the released state, the switching pipe.   One or more urged to protrude outwardly at intervals in the circumferential direction corresponding to the lock pins excluding the outermost lock pin in the vicinity of the tip of the upper side of the armrest body 2. The bathroom according to claim 1, wherein a detachment prevention pin is provided, a stopper is fixed to the tip of the detachment prevention pin, and the outer end edge of the stopper or the detachment prevention pin comes into contact with the inner end edge of the pipe catch. Chair.

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