JP2021019745A - Nursing bathing bed - Google Patents

Abstract

To provide a nursing bathing bed that has a simple and solid structure, and facilitates adjustment operation of a tilt angle of a backrest part.SOLUTION: A nursing bathing bed 1 includes a seat part 2, a backrest part 3 pivoted by this, and a switching mechanism 4 for switching a tilt angle to the seat part 2 of the backrest part 3 in the standing direction in a stepwise manner according to a ratchet type. The switching mechanism 4 comprises a locking shaft 6 and a gear member 7. The locking shaft 6 is supported to a long hole 81 of a bracket 8, and is biased so as to be engaged and disengaged to an engaging recess 71 of the gear member 7 in the ratchet type. The locking shaft 6 is released from the engagement with the gear member 7 when a release recess 62 is made to face the gear member 7 by the movement operation in the axial direction, and the backrest part 3 is released.SELECTED DRAWING: Figure 1

Description

The present invention relates to a bathing sleeper for long-term care, which allows a caregiver to enter a bathtub together with a sleeper by using a lift device or the like while the care recipient is seated on the sleeper.

Conventionally, a bathing wheelchair has been proposed in Patent Document 1. This bathing wheelchair has a seat, a backrest that is provided on the rear end side of the seat and is rotatably connected to the seat in a vertical plane, and the inclination of the backrest with respect to the seat is stepwise. It is equipped with a switching mechanism to switch to. The switching mechanism includes an operation lever portion arranged on the rear surface side of the backrest portion, a lock shaft attached to the operation lever portion, and a positioning plate provided on the rear lower side of the seat portion and including an extension portion extending rearward. , It is provided in the extension portion and has a groove portion that engages with the lock shaft.

JP-A-2017-57739

An object of the present invention is to provide a nursing care bathing sleeper having a simple and robust structure different from the conventional bathing wheelchair and having a reclining mechanism that makes it easy to adjust the inclination angle of the backrest. ..

Hereinafter, the description will be made with reference to the reference numerals in the accompanying drawings, but the present invention is not limited thereto.
The nursing care bathing bed 1 of the present invention for solving the above problems is provided at the seat portion 2 and the rear portion of the seat portion 2, and can rotate in a vertical plane with respect to the seat portion 2 at the base end portion. It is provided with a backrest portion 3 connected to the backrest portion 3 and a switching mechanism 4 for gradually switching the inclination angle of the backrest portion 3 with respect to the seat portion 2 in an upright direction in a ratchet manner. The switching mechanism 4 includes a lock shaft 6 and a gear member 7. The lock shaft 6 is supported by brackets 8 provided on both the left and right sides of the rear portion of the seat portion 2, and is arranged so as to extend to the left and right sides of the seat portion 2. The gear member 7 includes a plurality of engaging recesses 71 that engage and disengage with the lock shaft 6 in a ratchet manner. The lock shaft 6 engages with the engaging recess 71 of the gear member 7 to prevent the backrest portion 3 from rotating in the overturning direction, and the lock shaft 6 is orthogonal to the axis between the support position and the release position separated from the engaging recess 71. A release recess 62 that is movable, is urged toward the support position side, and is disengaged from the gear member 7 when facing the gear member 7 is provided in the process of extension, and the release recess 62 is the gear member 7. It is configured to be movable in the axial direction between the release position facing the surface and the non-release position not facing the surface.

The nursing care bathing sleeper of the present invention has a simple and robust structure, and has an effect that the tilt angle of the backrest portion can be easily adjusted.

It is a perspective view of the bathing bed for nursing care which concerns on this invention, and shows the state which made the inclination angle of the backrest part 45 ° with respect to a seat part. FIG. 5 is a perspective view showing a state in which the inclination angle of the backrest portion is 0 ° with respect to the seat portion of the nursing care bath bed of FIG. It is a perspective view of the switching mechanism part in the state which the inclination angle of the backrest part is 0 degree with respect to the seat part of the bathing bed for nursing care of FIG. It is a top view of a part of the switching mechanism part in the bathing bed for nursing care of FIG. FIG. 5 is a sectional view taken along line VV in FIG. It is explanatory drawing which shows the process of switching the inclination angle of the backrest part from 0 ° to 15 ° with respect to the seat part of the bathing bed for nursing care of FIG. It is explanatory drawing which shows the process of releasing the support of the backrest part after switching the inclination angle of the backrest part from 35 ° to 45 ° with respect to the seat part of the bathing bed for nursing care of FIG.

Embodiments of the present invention will be described with reference to the drawings.
In FIGS. 1 and 2, the nursing care bathing bed 1 is detachably configured on, for example, a stretcher (not shown), and when used, the care recipient is separated from the stretcher while sitting and covered with a lift device or the like. It can be lifted with a caregiver and immersed in a bathtub.

The sleeper 1 includes, for example, a detachable seat 2 on a stretcher (not shown) and a backrest 3 pivotally attached to the rear of the seat 2 so that the tilt angle with respect to the seat 2 can be changed from 0 ° to 45 °. Equipped with. Between the backrest portion 3 and the seat portion 2, the inclination angle of the backrest portion 3 with respect to the seat portion 2 can be changed stepwise in the upright direction, and the ratchet type is fixed at a desired inclination angle in the fall direction. A switching mechanism 4 is provided.

The seat portion 2 is formed by assembling a stainless steel pipe material in a substantially rectangular shape, and includes pivotal support portions 21 standing upward on the left and right sides of the rear portion. The backrest portion 3 is formed by bending a stainless steel pipe material in a substantially U-shape, and is pivotally supported by a pivot pin 5 at a pivot portion 21 of a seat portion 2 at a base end of a pair of parallel left and right leg portions 31.

The switching mechanism 4 includes a lock shaft 6 and a gear member 7. The lock shaft 6 is supported by brackets 8 provided on both left and right sides of the rear portion of the seat portion 2, and is arranged so as to extend to the left and right sides of the seat portion 2. The lock shaft 6 is provided with an operation handle portion 61 for pushing and pulling the lock shaft 6 in the axial direction on one end side extending outward from the bracket 8. The gear member 7 is fixed to the base end side of both leg portions 31 of the backrest portion 3, and protrudes radially between the plurality of engaging recesses 71 that engage and disengage with the lock shaft 6 in a ratchet manner and the adjacent engaging recesses 71. The tooth portion 72 is provided.

The bracket 8 is fixed on the mounting plate 9 fixed to the left and right of the seat portion 2. As is well shown in FIG. 5, the bracket 8 includes elongated holes 81 in the diagonally vertical direction. The lock shaft 6 is supported by the elongated hole 81 so as to be movable in the axial direction and diagonally vertically and vertically along the elongated axis of the elongated hole 81, and is supported on the lower end side of the elongated hole 81 by the built-in spring 82. Be urged to a position.

As shown in FIGS. 6 (C) and 7 (A), the lock shaft 6 engages with the engaging recess 71 of the gear member 7 at the lower support position to support the backrest portion 3 at a predetermined inclination angle. , As shown in FIGS. 6 (B) and 7 (B), the backrest portion 3 is released from the engaging recess 71 at the upper non-support position.

A pair of left and right gear members 7 are fixed on a mounting plate 10 fixed between both legs 31 of the backrest portion 3. Four engaging recesses 71 of the gear member 7 are provided on an arc centered on the pivot point (pin 5) of the backrest portion 3 at a distance of 15 ° from each other so as to face the lock shaft 6. Be placed. Therefore, the gear member 7 rotates around the pivot point 5 integrally with the backrest portion 3.

Since the pivot point 5 of the gear member 7 is arranged above the lock shaft 6 and the engaging recess 71 is arranged with the opening facing diagonally downward, FIG. 6 (C) in which the lock shaft 6 is engaged with the engaging recess 71. ), In the state of FIG. 7A, the load applied to the backrest portion 3 is applied downward to the lock shaft 6 via the engaging recess 71. The lock shaft 6 is located at the lower end of the elongated hole 81 and is fixed downward. Therefore, the backrest portion 3 cannot rotate in the overturning direction (counterclockwise in the drawing) while the lock shaft 6 is engaged with the engaging recess 71. However, when the backrest portion 3 is pushed in the upright direction (clockwise in the drawing), the gear member 7 does not support the lock shaft 6 at the tooth portions 72, as shown in FIGS. 6 (B) and 7 (B). Since the engaging recess 71 with which the lock shaft 6 engages is sequentially moved to the engaging recess 71 so as to be adjacent to the engaging recess 71 in the counterclockwise direction, the inclination angle of the backrest portion 3 changes stepwise by 15 ° in the upright direction. As shown in FIG. 7C, when the inclination angle of the backrest portion 3 reaches 45 °, the lock shaft 6 cannot be pushed up to the non-supporting position because there is no tooth portion 72 in the standing rotation direction, and the backrest portion 3 is fixed at an inclination angle of 45 °.

As shown in FIGS. 4 and 7 (D), the lock shaft 6 is provided with a release recess 62 in the middle of its extension. For example, in the state of FIG. 7C in which the backrest portion 3 is fixed at an inclination angle of 45 °, the operation handle portion 61 is grasped and the lock shaft 6 is moved to the right in FIG. 4 in the axial direction (for example, to the right by about 5 mm). When the release recess 62 is arranged at the release position facing the gear member 7, the gear member 7 fits into the release recess 62 and is supported by the lock shaft 6 as shown in FIG. 7 (D). lose. In this state, the gear member 7 is released and can rotate freely, and the backrest portion 3 can be returned to the initial position at an inclination angle of 0 °. When the lock shaft 6 is moved from the release position to the opposite side in the axial direction (for example, pushed to the left by about 5 mm) and returned to the lock position, the release recess 62 is displaced from the gear member 7 as shown in FIG. The lock shaft 6 can be ratchet-engaged with the gear member 7 again. When the lock shaft 6 moves in the axial direction, the spring 82 bends to allow this. The lock shaft 6 is provided with a flat surface 63 for sliding contact with the edge portion of the elongated hole 81 to suppress rotation around the shaft.

As described above, the nursing care bathing bed 1 of the present invention has a simple structure, is robust, does not require the use of grease unsuitable for a submerged environment, and can be provided at low cost.

1 Nursing bath bed 2 Seat 3 Backrest 31 Leg 4 Switching mechanism 5 Pit 6 Lock shaft 61 Operation handle 62 Release recess 63 Flat surface 7 Gear member 71 Engagement recess 72 Tooth 8 Bracket 81 Long hole 82 Spring

Claims (1)

A sleeper on which a care recipient can be placed and immersed in a bathtub, which is provided on the rear side of the seat and is rotatably connected to the seat at the base end in a plane perpendicular to the seat. It is provided with a backrest portion to be formed and a switching mechanism for gradually switching the inclination angle of the backrest portion with respect to the seat portion in a ratchet manner in the upright direction.
The switching mechanism is provided on both left and right sides of the base end side of the backrest portion and a lock shaft supported by brackets provided on both left and right sides of the rear portion of the seat portion and arranged so as to extend to the left and right sides of the seat portion. Each stage of the inclination angle of the backrest includes the lock shaft and a gear member having a plurality of engaging recesses that engage and disengage in a ratchet manner.
The lock shaft is movable in the direction perpendicular to the axis between a support position that engages with the engaging recess of the gear member to prevent the backrest portion from rotating in the overturning direction and a release position that is separated from the engaging recess. A release recess that is urged to the support position side and is released from engagement with the gear member when facing the gear member is provided in the process of extension, and the release recess that faces the gear member is released. A bathing sleeper for nursing care that is configured to be movable in the axial direction between a position and a non-release position that does not face each other.

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