JP6265352B2 - Bath stretcher - Google Patents

Description

  The present invention relates to a bath stretcher used for transporting a stretcher carrying a bather to a bathtub.

  Traditionally, a stretcher for bathing is transported by a bath stretcher, one long side of the bath stretcher is laid on one long side of the bathtub, and after engaging these, the stretcher is placed inside the bathtub. There is known a bathing apparatus that passes over a cradle and raises a bathtub by an elevating mechanism to bathe a bather.

  Then, the applicant can perform the slide movement operation of the stretcher between the bathtub cradle and the bath stretcher in a comfortable posture without being forced by the bathing assistant to bend forward. Therefore, there is a space section that crosses from one long side of the bath stretcher to the other long side, and a bathing assistant enters the space section so that the bather can board and assist in bathing. The stretcher was improved (for example, refer to Patent Document 1).

  There is also known a bath stretcher that has the above-described space portion and that allows the stretcher placing portion on which the stretcher is placed to be lifted and lowered by lifting means (for example, see Patent Document 2).

Japanese Patent No. 3862872 Japanese Patent No. 3997742

Aussie Giken GENERAL CATALOG 2010-2011 71-72 (issued May 1, 2011)

  In the technique disclosed in Patent Document 2, since the lifting means including the elevator (X frame) and the drive source are arranged on the left and right in the longitudinal direction of the bath stretcher, the number of parts of the lifting means is required and the cost is increased. In addition, the stretcher for bathing itself is heavier and the weight of the stretcher for bathing itself becomes heavy, which is difficult in terms of the steering performance of the stretcher for bathing by bathing assistants, and the weight reduction is a problem. In addition, since the elevating means are provided independently on the left and right, it is necessary to perform synchronous control of the elevating operation by each elevating means in order to elevate the stretcher horizontally, which is one of the causes of cost increase. It was.

  Conventionally, the proportion of the space occupied by the lifting means in the entire bath stretcher is high, and the space (walk-through area) formed at the center of the bath stretcher has been limited. If the longitudinal dimension is elongated to expand this walk-through area, there is a problem that the steerability of the bath stretcher is impaired, and it is not practical to expand the space by increasing the longitudinal dimension. It was.

  Patent Document 2 discloses a configuration in which the rear water receiving plate of the stretcher mounting portion in which the front water receiving plate and the rear water receiving plate are connected by the support arm is supported by the elevator. Since the platform is configured to move up and down, if an unbalanced load is applied to the front water receiving side during boarding or lifting of the stretcher with the bather lying on its back, the stretcher platform will bend, As a result, the bather on the stretcher feels a sense of fear and cannot take a bath with peace of mind, which is not preferable for mental health.

  On the other hand, there is also an elevating bath stretcher that constitutes elevating means with a four-node parallel link arranged on the left and right in the longitudinal direction of the bathing stretcher and one drive source that simultaneously drives the left and right four-node parallel links. It has been commercialized (see Non-Patent Document 1).

  According to this, the space area could be expanded without making the longitudinal dimension of the bath stretcher longer than that of the conventional bath stretcher, and the weight of the bath stretcher could be reduced. However, the problems of reducing the number of parts used for the lifting means by further simplifying the parallel link mechanism, reducing the weight of the bath stretcher, and reducing the cost remain unsolved.

  The present invention has been made in view of the above, and the simplification of the elevating support mechanism that supports the stretcher mounting portion so that it can be moved up and down can reduce the number of parts, reduce the cost, and reduce the weight of the stretcher for bathing. In addition, an object of the present invention is to provide a bath stretcher that allows a bather to enter and leave without worrying about fear.

In order to achieve the above object, the invention described in claim 1 has an elevating support mechanism that supports a stretcher placing portion on which a stretcher is placed so that the stretcher can be raised and lowered, and a long side is attached to a long side of the bathtub. The elevating support mechanism is pivotally attached to each link shaft over a base frame and a holding frame provided with the base frame and the stretcher mounting portion. along the long side direction of a bath stretcher comprises at least a pair of link pieces are disposed, and a connecting member connecting the support frame to each other which are pivotally attached to each of the pair of link pieces together, the A supporter can enter and leave the space surrounded by the holding frame and the connecting member, and the base frame, the pair of link pieces, the holding frame, and the connecting member constitute a parallel link mechanism, To do.

  In the first aspect of the invention, the parallel link mechanism is constituted by the main elements of the base frame, the link piece, and the connecting member, so that the lifting support mechanism can be simplified as compared with a conventional bath stretcher. Thus, the number of parts constituting the lifting support mechanism can be reduced and the cost can be reduced. In addition, the simplification of the elevating support mechanism can contribute to the reduction of the overall weight, which is preferable when the assistant steers the bath stretcher. In addition, the parallel link mechanism allows the stretcher platform to be moved up and down stably while maintaining a horizontal state. When the stretcher is transferred onto the stretcher platform or when the stretcher is lifted or lowered, This can reduce the fear of fear.

  The invention according to claim 2 is characterized in that the parts on the base frame side of the pair of link pieces are connected by another connecting member connected to an elevating drive means for elevating and driving the elevating support mechanism. And

  According to the second aspect of the present invention, the stretcher mounting portion can be moved up and down by the lift drive means.

  In the present invention, the simplification of the elevating support mechanism that supports the stretcher mounting portion so as to be able to move up and down reduces the number of parts, reduces the cost, and reduces the weight of the stretcher for bathing. It is possible to provide a bath stretcher that can be taken in and out without worry.

It is a top view of the stretcher for bathing which concerns on embodiment of this invention. FIG. 2 is a perspective view of a bath stretcher with the water receiving board and boarding board removed in FIG. 1. It is a long side direction sectional drawing of the stretcher for bathing of FIG. It is a perspective view which shows the modification of a connection member. It is a perspective view which shows another modification of a connection member.

  Hereinafter, with reference to FIGS. 1-3, the bath stretcher which concerns on embodiment of this invention is demonstrated. FIG. 1 is a plan view of a bathing stretcher according to an embodiment of the present invention, FIG. 2 is a perspective view of the bathing stretcher in a state where a water receiving board and a boarding board are removed, and FIG. It is a long side direction sectional view of a stretcher for bathing.

  The bath stretcher 1 has a base frame 2. The base frame 2 includes a pair of first and second long-side frame portions 2a and 2b and a pair of first and second short-side frame portions 2c and 2d, which face each other in parallel. The moving wheels 3 are mounted on the lower surfaces of both end portions of the first and second short side frame portions 2c and 2d.

  The first and second link attachment members 4a and 4b are provided on the upper surfaces of the first and second long side frame portions 2a and 2b on one end side in the long side direction. Third and fourth link mounting members 4c and 4d are provided on the upper surfaces of the first and second long side frame portions 2a and 2b, respectively, on the other side in the long side direction.

  The lower halfway of the S-shaped first and second link pieces 5a and 5b is pivotally attached to the link shaft 6a between the first and second link mounting members 4a and 4b. This pivot point becomes a lower rotation fulcrum. The lower ends 5a1 and 5b1 of the first and second link pieces 5a and 5b further extend in one oblique direction in the long side direction from the lower rotation fulcrum to constitute an operating part. The upper end portions 5a2 and 5b2 of the first and second link pieces 5a and 5b are pivotally attached to the link shaft 6b provided on the water receiving disc holding frame 8a that holds the water receiving disc 17a on one side in the long side direction. Is done. This pivot point is the upper pivot point.

  On the link shaft 6c between the third and fourth link mounting members 4c and 4d, the lower half of the S-shaped third and fourth link pieces 9a and 9b is pivotally mounted. This pivot point becomes a lower rotation fulcrum. The lower end portions 9a1 and 9b1 of the third and fourth link pieces 9a and 9b extend further in one oblique direction in the long side direction from the lower rotation fulcrum to constitute an operating portion. The upper end portions 9a2 and 9b2 of the third and fourth link pieces 9a and 9b are pivotally attached to the link shaft 6d provided on the water receiving disc holding frame 8b that holds the water receiving disc 17b on the other side in the long side direction. Is done. This pivot point is the upper pivot point.

  One of the long-side water receiving disc holding frames 8a has a pair of long-side frame portions 8a1, 8a2 and a pair of short-side frame portions 8a3, 8a4 in a rectangular frame shape in plan view, and the other short-side frame in the long-side direction. The part 8a4 has both ends extending in the short side direction, and a rail-like stretcher mounting part 10a is provided thereon.

  The other water receiving disc holding frame 8b in the long side direction has a rectangular frame shape in plan view with the pair of long side frame portions 8b1 and 8b2 and the pair of short side frame portions 8b3 and 8b4, and one short side frame in the long side direction. The part 8b4 has both ends extending in the short side direction, and a rail-like stretcher mounting part 10b is provided thereon.

  One end side of the short side frame portion 8a4 of the water receiving disc holding frame 8a and one end side of the short side frame portion 8b4 of the water receiving disc holding frame 8b are connected by the connecting member 11. As described above, the base frame 2, the first to fourth link pieces 5a and 5b; 9a and 9b, and the connecting member 11 constitute a parallel link mechanism.

  This parallel link mechanism constitutes an elevating support mechanism, and includes a base frame 2, a pair of left and right first to fourth link pieces 5a, 5b; 9a, 9b disposed along the long side direction, and a rail-shaped stretcher. The space portion 12 is formed between the placement portions 10a and 10b, and the connecting member 11 is connected to the one end side of the short side frame portion 8a4 of the water receiving plate holding frame 8a on the side laid on the bathtub 20 and the water receiving portion. The one end side of the short side frame portion 8b4 of the board holding frame 8b is connected.

  An elevating drive means comprising an electric actuator 13 is provided between the first and second long side frame portions 2a, 2b of the base frame 2. The lower ends of the first and third link pieces 5a and 9a on one side in the short side direction are connected to the first connecting member 14a by link shafts 18a and 18b, and the other second and fourth link pieces on the other side in the short side direction. The lower end portions of 5b and 9b are connected to the second connecting member 14b by link shafts 18a and 18b. The middle portions in the long side direction of the first and second connecting members 14 a and 14 b are connected by a third connecting member 15.

  The electric actuator 13 is connected to a drive unit 13a and one end side of the drive unit 13a as a lift drive unit that lifts and lowers the lift support mechanism (base frame 2, link pieces 5a and 5b; 9a and 9b, and connecting member 11). And the other end side of the actuator portion 13b is fixed to the third connecting member 15.

  When the actuator portion 13b is moved back and forth linearly by the drive portion 13a of the electric actuator 13, the third connecting member 15 is pushed or returned in the long side direction. As a result, the first and second link pieces 5a, 5b and 3, the fourth link pieces 9a and 9b are both turned clockwise or counterclockwise around the lower turning fulcrum.

  By this rotation, the upper ends of the first and second link pieces 5a and 5b and the third and fourth link pieces 9a and 9b move upward or downward. At the same time, the water receiving frame holding frames 8a and 8b interconnected by the connecting member 11 are raised or lowered as shown by solid lines and phantom lines in FIG.

  A boarding base 16 is placed on both long side frame portions 2 a and 2 b of the base frame 2. Above the boarding board 16, the space part 12 mentioned above is formed. Further, the rail-shaped stretcher mounting portions 10a and 10b provided on the water receiving frame holding frames 8a and 8b are moved up and down by the electric actuator 13 while maintaining the horizontal state by the parallel link mechanism. The risk of fear of bathers can be reduced.

  In addition, the electric actuator 13 which is the raising / lowering drive means which raises / lowers the raising / lowering support mechanism (base frame 2, link piece 5a, 5b; 9a, 9b, and connection member 11) is arrange | positioned under the boarding board 16. FIG. Therefore, the elevating support mechanism (the base frame 2, the first to fourth link pieces 5a, 5b; 9a, 9b, and the connecting member 11) above the boarding board 16 can be simplified, thereby reducing the space of the space portion 12. Widely secured.

  Moreover, since the bath stretcher 1 of this embodiment can ensure the space of the wider space part 12 without extending the long side dimension compared with the conventional bath stretcher, it is a helper. Is preferable when performing bathing assistance work by entering / exiting the space part 12 or entering the space part 12.

  In the state where the bath stretcher 1 is laid on the bathtub 20, the connecting member 11 is located at a position where the assistant does not hinder the approaching action to the bathtub 20 and one end side of the short side frame part 8 a 4 and the short side frame part 8 b 4. It is spanned to one end side of.

  Therefore, it does not hinder the assistant from boarding the boarding board 16 and entering the space 12 on the boarding board 16 to perform the washing operation of the bather, the sliding movement of the stretcher, and the raising / lowering of the bathtub. Operability equivalent to a stretcher for bathing can be maintained.

  In that case, the assistant on boarding board 16 can approach a bathtub at the time of assistance work.

  Moreover, as the bathtub 20, there exists what was equipped with the structure which bathtub 20 itself raises / lowers with respect to the stretcher for bathing, However, In the bathtub configuration, between the movable part of the bathtub 20 which raises / lowers, and the stretcher for bathing The caregiver's body may be caught. On the other hand, in this embodiment, by providing the connecting member 11, the connecting member 11 functions as a safety guard against the danger of pinching due to the helper approaching the movable part of the raised and lowered bathtub 20. The risk of pinching can be reduced.

  In the said embodiment, although the connection member 11 is being fixed to the side laid on the bathtub 20 in the bath stretcher 1, it can change operation of the position of the connection member 11 so that it may demonstrate with reference to FIG. It may be.

  In FIG. 4, only the upper side members (the connecting member 11 and the water receiving frame holding frames 8 a and 8 b) of the bath stretcher 1 are drawn and the lower side members and the like are omitted in order to clarify the main parts. ing. The both ends of the connecting member 11 shown in FIG. 4 are fixed to one end side of the arm-shaped rotating members 11a and 11b. One end side of the connecting pin 12a is fixed to the other end side of one rotating member 11a, and the other end side of the connecting pin 12a is in a support hole provided in the short side frame portion 8a4 of the water receiving disc holding frame 8a. It is held rotatably. The other rotating member 11b has the other end fixed to one end of the connecting pin 12b, and the other end of the connecting pin 12b penetrates the short side frame portions 8b4 and 8b3 of the water receiving frame holding frame 8b. It protrudes outward from the short side frame portion 8b3 through the hole. The protruding portion of the connecting pin 12b is fixed to one end side of the operation handle 30.

  When the operation handle 30 has an L shape in plan view and the other end side is rotated as indicated by the arrow A in the figure, the connecting member 11 rotates as indicated by the arrow B in the figure, and the bath stretcher 1 The position can be changed by reversing from one long side to the other long side and vice versa. Thereby, even if it is a helper who is not familiar with the handling of the bath stretcher, the position of the connecting member 11 can be changed by a simple operation, so that it does not become a burden on the helper. The handle 30 shown in FIG. 4 is locked to the water receiving frame holding frame 8b so that the connecting member 11 can be maintained at the position shown in FIG. 4 and its inverted position by a lock mechanism (not shown). Further, without providing the handle 30, the rotating members 11a and 11b of the connecting member 11 can be connected to the short side frame portions 8a4 and 8b4 so that the connecting member 11 can be maintained at the position shown in FIG. You may comprise so that it may lock.

  Further, as shown in FIG. 5, the connecting member 11 may be slidable from one long side of the bath stretcher 1 to the other long side and vice versa to change its position. In FIG. 5, as in FIG. 4, only the upper side member (the connecting member 11, the water catcher holding frames 8 a and 8 b) of the bath stretcher 1 is drawn, and the lower side is drawn in order to clarify the main part. Members and the like are omitted.

  The short side frame portions 8a4 and 8b4 of the water receiving frame holding frames 8a and 8b are used as slide rails having a rectangular cross section, and the holding portions 11c having cross-sections provided at both ends of the connecting member 11 having a "U" shape of Katakana. By engaging 11d with the slide rail, the connecting member 11 can be slid along the slide rail in the direction of arrow C in the figure. The holding portions 11c and 11d and the slide rail can be constituted by, for example, a slide ball bearing, a metal bearing, or a resin metal.

  In addition, the connection member 11 of FIG. 5 can fix the sliding position from the one side long side of the bath stretcher 1 to the other side long side by a lock mechanism (not shown). According to this, since the position of the connecting member 11 can be changed with a simple operation even by an assistant who is not familiar with the handling of the bath stretcher 1, as in the configuration of FIG. There is no burden.

  The connection member 11 of FIG. 4 or FIG. 5 can change the position of a connection member freely according to the direction which lays a bath stretcher with respect to a bathtub. For this reason, it becomes possible to lay the stretcher for bathing on both the one side long side and the other side long side of the bathtub, and to make it highly versatile. For medical and welfare facilities that use bathing stretchers, there is no need to purchase and prepare a dedicated bathing stretcher according to the direction to be laid on the bathtub. Since bathing can be performed from the long side direction, it is economical and highly convenient.

  In addition, although the connection member 11 was linear, it is not limited to this, The shape, such as curved shape, is arbitrary. Further, although the electric actuator is used as the lifting drive means, the present invention is not limited to this, and it may be a lifting drive means using a hydraulic cylinder and a hydraulic pump, or a lifting drive means using a motor and a screw shaft. There may be.

  In addition, although four link pieces are used, for example, two link pieces on one side in the long side direction are combined into one, and the other two link pieces on the other side in the long side direction are combined into one. Alternatively, two link pieces may be configured.

DESCRIPTION OF SYMBOLS 1 Bathing stretcher 2 Base frame 5a, 5b 1st, 2nd link piece 6a-6d Link shaft 9a, 9b 3rd, 4th link piece 10a, 10b Rail-like stretcher mounting part 11 Connection member 12 Space part 13 Electricity Actuator 20 Bathtub

Claims (2)

A stretcher for bathing that has a lifting support mechanism that supports a stretcher placing part on which a stretcher is placed so as to be able to be raised and lowered, and whose long side is laid on the long side of the bathtub,
The elevating support mechanism is attached to each link shaft over the base frame and the holding frame provided with the base frame and the stretcher mounting portion and along the long side direction of the bath stretcher. And at least a pair of link pieces disposed, and a connecting member that connects the holding frames pivotally attached to each of the pair of link pieces,
An assistant can enter and leave the space surrounded by the holding frame and the connecting member,
The base frame, the pair of link pieces, the holding frame, and the connecting member constitute a parallel link mechanism.
This is a stretcher for bathing. The parts on the base frame side of the pair of link pieces are connected by another connecting member connected to an elevating drive means for elevating and driving the elevating support mechanism.
The bath stretcher according to claim 1.