CN106333809B - Bed device - Google Patents

Abstract

The bed paving device comprises a support stand and a bed supported on the support stand. The bed is provided with: a bed section; a rotating grid rotatably provided at one side edge of the bed section; a lock mechanism that restricts rotation of the rotary fence in a state where the rotary fence is erected; and a biasing mechanism that biases the swing gate in a tilting direction in a state where rotation of the swing gate is restricted by the lock mechanism.

Description

Bed device

Technical Field

The invention relates to a bed device.

Background

Conventionally, there has been known a bed apparatus used for the purpose of treatment, care, or transport in a state where a care subject lies down, such as a bed or a stretcher for medical use or care. In general, in these bed mats, a fence for preventing a nursing target from rolling off is provided on a bed on which the nursing target is placed.

For example, patent documents 1 and 2 below disclose a stretcher including: a rotation fence rotatably provided at one side edge of the bed section for preventing rolling, and a lock mechanism for restricting rotation of the rotation fence when the rotation fence is in a standing state. The rotation of the rotary fence is restricted by the lock mechanism, and the lock-release operation section disposed adjacent to the rotary fence can be manually operated to release the rotation.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2009-118982

Patent document 2: japanese laid-open patent publication No. 2009-118983

In the bed device including the above-described swing gate, when a care subject receives treatment or care on the bed, the swing gate is locked (rotation-restricted) by the lock mechanism to be in an upright state in order to prevent the care subject from falling. On the other hand, when a caregiver such as a healthcare worker or a caregiver transfers a care target to another bed apparatus, a wheelchair, or the like, the caregiver needs to operate the lock release operation unit to release the lock of the swing gate and then to lower the swing gate forward.

In this way, when the caregiver performs the transfer operation of the care target, the caregiver needs to perform a series of operations of tilting the swing gate forward after unlocking the swing gate. However, since the transfer work of the care subject is frequently performed, the series of work is performed every time the transfer work is performed, which causes a burden on the care giver.

In particular, when the center of gravity of the swing gate is located inside the bed in a state where the swing gate is standing up, the swing gate may fall down to the inside of the bed by its own weight when the lock of the swing gate is released. Therefore, when releasing the lock of the swing gate, the caregiver needs to hold the swing gate with one hand and operate the lock release operation unit with the other hand. That is, after releasing the locking of the swing fence, the caregiver must support the swing fence to be lowered to the inside of the bed with only one hand, which is a physical burden for the caregiver of women in particular.

Disclosure of Invention

The present invention has been made in view of the above circumstances, and an object thereof is to provide a bed device that can reduce the burden on an operator who performs a transfer operation on a human body placed on a bed.

Means for solving the problems

In order to solve the above problems, the present invention adopts the following means.

(1) A bed device according to an aspect of the present invention includes: a support stand; and a bed supported on the support stand; the bed is provided with: a bed section; a rotating grid rotatably provided at one side edge of the bed section; a lock mechanism that restricts rotation of the rotary fence in a state where the rotary fence is erected; and a biasing mechanism that biases the swing gate in a tilting direction in a state where rotation of the swing gate is restricted by the lock mechanism.

(2) The bed layout device according to the above (1) may have the following structure: the urging mechanism includes a spring, and when the rotation of the rotary fence is restricted by the lock mechanism, the shape of the spring is elastically deformed, and the return force of the spring urges the rotary fence in the tilting direction.

(3) The bed paving device according to the above (2) may have the following structure: the spring is an L-shaped plate spring having a first flat plate portion having a projection on one surface and a second flat plate portion connected to the first flat plate portion at a right angle and extending in a direction opposite to a projecting direction of the projection, the second flat plate portion of the plate spring being fixed to a bearing portion of the swing gate in such a manner that: when the rotation of the rotation gate is restricted by the lock mechanism, the projection of the first flat plate portion abuts against the rotation gate, and an angle between the first flat plate portion and the second flat plate portion becomes an acute angle.

(4) In the bed layout device according to the above (3), the first flat plate portion may be longer than the second flat plate portion.

(5) In the bed layout device according to the above (3) or (4), the projection may be provided at an end portion of the first flat plate portion that is farthest from the second flat plate portion.

(6) In the bed layout device according to the above (2), the spring may be a coil spring, one end of which is fixed to one of the bed portion and the swing fence, and the other end of which abuts against and is compressed by the other of the bed portion and the swing fence when the rotation of the swing fence is restricted by the lock mechanism.

(7) In the bed device according to any one of (1) to (6), the support frame may include: a mechanism for supporting the bed to be movable; a mechanism for supporting the bed to be freely lifted and lowered; a mechanism for supporting the bed to freely tilt; at least one of (a).

Effects of the invention

According to the above aspects of the present invention, it is possible to provide a bed device that reduces the burden on an operator who performs a transfer operation on a human body placed on a bed.

Drawings

Fig. 1 is a first perspective view of a child bed 1 according to an embodiment of the present invention.

Fig. 2 is a side view of the cot 1 for children.

Fig. 3 is a plan view of the child bed 1.

Fig. 4 is a second perspective view of the child bed 1.

Fig. 5 is a third perspective view of the child bed 1.

Fig. 6 is a fourth perspective view of the child bed 1.

Fig. 7 is a view showing a main part of the child bed 1, and is an enlarged view of a region a1 shown in fig. 4.

Fig. 8 is a view showing a main part of the child bed 1, and is an enlarged view of a region a2 shown in fig. 5.

Fig. 9 is a view showing a main part of the child bed 1, and is a first explanatory view of a two-stage operation of the first lock release operation portion 27 b.

Fig. 10 is a diagram showing a main part of the child bed 1, and is a second explanatory diagram relating to a two-stage operation of the first lock release operation portion 27 b.

Fig. 11 is a perspective view showing the entire structure of the leaf spring 31 included in the first biasing mechanism 30 of the child bed 1.

Fig. 12 is a view showing a main part of the child bed 1, and is a plan view of the part shown in fig. 8.

Fig. 13 is a view showing a first modification of the child bed 1, and is an enlarged perspective view of a portion corresponding to fig. 8.

Fig. 14 is a view showing a second modification of the child bed 1, and is an enlarged perspective view of a portion corresponding to fig. 8.

Fig. 15 is a view showing a third modification of the child bed 1, and is an enlarged perspective view of a portion corresponding to fig. 8.

Fig. 16 is a view showing a fourth modification of the child bed 1, and is an enlarged perspective view of a portion corresponding to fig. 8.

Description of the symbols

1 … Children bed (bed device)

10 … support stand

11 … foot part

12 … Caster (mechanism for freely moving bed)

13 … lifting mechanism (mechanism for supporting bed to freely lift)

14 … tilting mechanism (mechanism for supporting bed to be free to tilt)

20 … bed

21 … bed part

22 … front frame

22b … first left bearing part 22b (bearing part of the rotating grid)

23 … rear frame

23a … second Right bearing part (bearing part of rotating grid)

24 … first fixed fence

25 … second fixed grid

26 … first rotary fence (rotary fence)

27 … first locking mechanism (locking mechanism)

28 … second rotary grid (rotary grid)

29 … second locking mechanism (locking mechanism)

30 … first forcing mechanism (forcing mechanism)

31 … plate spring (spring)

31a … projection

31b … first flat plate part

31c … second flat plate part

32 … spiral spring (spring)

33 … spiral spring (spring)

40 … second forcing mechanism (forcing mechanism)

41 … plate spring (spring)

Detailed Description

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the following, a bed for children mainly used for nursing a child patient in a medical facility will be described as an example of the bed device of the present invention.

Fig. 1 is a first perspective view of a child bed 1 according to an embodiment of the present invention. Fig. 2 is a side view of the cot 1 for a child. As shown in fig. 1 and 2, the child bed 1 includes: a support frame 10 movably provided on a flat installation surface S; and a bed 20 supported on the support frame 10.

In the following description, a direction perpendicular to the installation surface S of the child bed 1 is defined as a height direction, a longitudinal direction of the bed 20 in a plan view is defined as a front-rear direction, and a direction perpendicular to the front-rear direction in a plan view is defined as a left-right direction.

In the height direction, a direction in which the bed 20 approaches the installation surface S (a direction indicated by an arrow D) is defined as a lower side, and a direction away from the installation surface S (a direction indicated by an arrow U) is defined as an upper side.

In the front-rear direction, a direction (a direction indicated by an arrow H) toward the head of a child patient (not shown) placed on the bed 20 is defined as the rear side, and a direction (a direction indicated by an arrow F) toward the foot of the child patient is defined as the front side.

In the left-right direction, a direction (a direction indicated by an arrow L) which is the left-hand side of the child patient lying on the bed 20 is defined as the left side, and a direction (a direction indicated by an arrow R) which is the right-hand side of the child patient lying on the bed 20 is defined as the right side.

The support frame 10 includes: a mechanism for supporting the bed 20 to be movable in the horizontal direction; a mechanism for supporting the bed 20 to be freely movable up and down; and a mechanism for supporting the bed 20 to be tiltable. Specifically, the support frame 10 includes: a pair of legs 11 that are bilaterally symmetrical; casters 12 attached to the top ends of the legs 11 so as to be rotatable about axes extending in the height direction; a lifting mechanism 13 for supporting the bed 20 to be freely lifted and lowered in the height direction; and a tilting mechanism 14 for supporting the bed 20 to be tiltable around an axis extending in the left-right direction.

Each leg 11 includes: a straight portion 11a extending linearly in the front-rear direction; a curved portion 11b extending from both ends of the linear portion 11a in a curved manner in a plan view; a toe portion 11c connected to the curved portion 11b and extending linearly; and a caster attachment portion 11d welded and fixed to the distal ends of the leg tip portions 11 c.

When the pair of leg portions 11 is viewed in plan, the linear portions 11a are parallel to each other, the bent portions 11b are bent so as to be apart from each other in the left-right direction, and the toe portions 11c extend so as to be further apart from each other in the left-right direction.

Since each leg 11 has the above-described shape, a space is formed between the bed 20 and the installation surface S on the front side, the rear side, the left side, and the right side. As a result, since the medical staff such as doctors and nurses are unlikely to interfere with the respective leg portions 11, the bed 20 is easily approached from either the front, rear, left, or right. In addition, various medical devices (not shown) can be disposed close to the bed 20 by using the vacant space.

The linear portion 11a is not cut at the center in the longitudinal direction thereof, but a part of the center thereof is covered with a rubber cover 13d described later. Thus, each leg portion 11 is a single piece obtained by bending one long plate member at two horizontal positions, respectively, from one leg end portion 11c to the other leg end portion 11c via the bent portion 11b, the linear portion 11a, and the other bent portion 11b, and the caster attachment portions 11d are welded and fixed to both ends of the single piece.

A rubber stopper 11e covering the opening is fitted to the upper end of each caster mounting portion 11d, and when the rubber stopper 11e is removed, for example, a drip rod 100 (see fig. 2) can be inserted into the opening and used as a support. In the present embodiment, for reference, only the child bed 1 to which the drip bar 100 is attached is illustrated in fig. 2.

Each caster 12 includes: a rotating shaft (not shown) attached to the caster attaching portion 11d so as to be rotatable about an axis parallel to the height direction; a wheel 12a attached to the rotation shaft; and a stopper 12b that allows or locks the rotation of the wheel 12 a. In this way, the child bed 1 can be moved on the installation surface S by providing the plurality of casters 12 on the support base 10.

The lifting mechanism 13 includes: a square tube-shaped pedestal portion 13a, the pedestal portion 13a being welded and fixed to be sandwiched between the pair of linear portions 11a and extending in the height direction; an elevating portion 13b which is inserted into the pedestal portion 13a coaxially with the pedestal portion 13a and is vertically movable in the height direction; a gas spring (not shown) provided between the pedestal portion 13a and the elevating portion 13 b; an elevating rod 13c for allowing and prohibiting the elevating operation of the elevating part 13b by the elevating rod 13 c; and the rubber cover 13d, this rubber cover 13d covers the welding position between the base 13a and a pair of straight line portions 11 a.

The pedestal portion 13a is fixed to each of the linear portions 11a such that a lower end thereof protrudes downward beyond each of lower edges of the pair of linear portions 11 a. By lowering the height position of the pedestal portion 13a in this way, the position of the center of gravity of the cot 1 is lowered, and therefore the stability of the cot 1 can be further improved. The lifting unit 13b has a square tube shape that is thinner than the base unit 13a, a lower end of the lifting unit 13b is inserted into the base unit 13a, and an upper end of the lifting unit 13b is connected to a lower portion of the bed 20. The gas spring biases the lifting portion 13b to the pedestal portion 13a upward in the height direction.

Since the lifting/lowering rod 13c is provided on both the left and right sides with the lifting/lowering portion 13b interposed therebetween in a plan view, the lifting/lowering rod 13c can be operated from either the left or right side of the bed 20. In a state where the lifting lever 13c is not operated, the lifting operation of the lifting unit 13b (i.e., the lifting operation of the bed 20) is prohibited (locked). On the other hand, when the lock of the lifting unit 13b is released by the operation of the lifting lever 13c, the lifting unit 13b (i.e., the bed 20) is gradually lifted upward in the height direction by the urging force of the gas spring.

In a state where the lock of the lifting unit 13b is released by the operation of the lifting lever 13c, when the pressing force is applied to the bed 20 in the lower side in the height direction by the healthcare worker, the lifting unit 13b is gradually lowered in the lower side in the height direction. In this way, the healthcare worker can set the height position of the bed 20 to a desired position by moving the bed 20 up and down in a state where the lock of the lifting unit 13b is released, and operating the lifting lever 13c to lock the lifting unit 13b again when the bed 20 reaches an appropriate height position.

The tilting mechanism 14 supports the bed 20 to be tiltable around an axis extending in the left-right direction. More specifically, the tilting mechanism 14 is a mechanism that changes the posture of the bed 20 between a state in which the bed 20 is parallel to the installation surface S (see fig. 2) and a state in which the bed 20 has its front portion tilted downward with respect to the installation surface S.

The tilting mechanism 14 includes: a tilting connecting portion 14a that connects the bed 20 to the upper end portion of the lifting portion 13b so as to be tiltable about an axis extending in the left-right direction, the tilting connecting portion 14 a; a support metal fitting 14b extending from the tilt connecting portion 14a to the lower side in the height direction; a buffer 14c connected between the lower end of the support attachment 14b and the lower portion of the front portion of the bed 20, and extending and contracting in accordance with the tilting operation of the bed 20; and a tilt lever 14d, the tilt lever 14d allowing and restricting expansion and contraction of the damper 14 c.

The tilting connection portion 14a is configured to change the tilting posture of the bed 20 between a state where the bed 20 is parallel to the installation surface S and a state where the bed 20 tilts the front portion downward with respect to the installation surface S, while the bed 20 does not tilt the rear portion downward. The damper 14c may be configured to include a gas spring, for example. One end of the shock absorber 14c is rotatably connected to the lower end of the support fitting 14b, and the other end of the shock absorber 14c is rotatably connected to the lower portion of the front portion of the bed 20.

The tilt lever 14d is provided on both the left and right sides at a position directly below the front portion of the bed 20. Both the tilt operation levers 14d are connected to the dampers 14c, and the expansion and contraction of the dampers 14c (i.e., the tilting of the bed 20) are prohibited (locked) in a state where both the tilt operation levers 14d are not operated. That is, the bed 20 is kept in a parallel posture with respect to the installation surface S in a state where the tilt lever 14d is not operated.

On the other hand, when the damper 14c is unlocked by the operation of at least the one-side tilt operation lever 14d, the damper 14c is in a telescopic state. In this way, when the medical practitioner applies a pressing force to the front portion of the bed 20 downward in the height direction while the shock absorber 14c is able to expand and contract, the shock absorber 14c is compressed, and the bed 20 tilts the front portion downward. In this way, the healthcare worker can set the reclining angle of the bed 20 to a desired angle by tilting the bed 20 in a state where the lock of the damper 14c is released, and locking the damper 14c again by the operation of the tilting operation lever 14d at the timing when the bed 20 reaches an appropriate reclining angle.

Next, the structure of the bed 20 will be described with reference to fig. 3 to 6 in addition to fig. 1 and 2. Fig. 3 is a plan view of the cot 1, fig. 4 is a second perspective view of the cot 1, fig. 5 is a third perspective view of the cot 1, and fig. 6 is a fourth perspective view of the cot 1.

As shown in the drawings, the bed 20 includes: a bed portion 21, a front frame 22, a rear frame 23, a first fixing fence 24, a second fixing fence 25, a first rotating fence 26, a first locking mechanism 27, a second rotating fence 28, and a second locking mechanism 29.

Fig. 1 and 2 show a state in which both the first turning grill 26 and the second turning grill 28 stand up with respect to the bed 21, but fig. 3 to 5 show a state in which only the first turning grill 26 is tilted down to the right in the left-right direction with respect to the bed 21. Fig. 6 shows a state in which both the first swing gate 26 and the second swing gate 28 are lowered to both sides in the left-right direction with respect to the bed 21 and the first fixing gate 24 and the second fixing gate 25 are removed from the bed 20.

The bed portion 21 includes a bottom frame 21a formed in a rectangular shape in plan view and a bed plate 21b which is a rectangular flat plate provided on the bottom frame 21 a. The bottom frame 21a is a structure that serves as a basic skeleton of the bed 20, and is supported by the support frame 10 to be movable up and down and tiltable. The bed plate 21b is a flat plate on which the child patient is placed in a state in which the child patient lies down. In practice, when the child bed 1 is used in a medical facility or the like, a mattress (not shown) is laid on the bed plate 21b, and a child patient is placed on the mattress.

The length of the bottom frame 21a in the front-rear direction is longer than the length of the bed plate 21b in the front-rear direction. The length of the bed plate 21b in the left-right direction is longer than the length of the bottom frame 21a in the left-right direction. In other words, both left and right direction end edges of the bed plate 21b protrude outward in the left and right direction from both left and right direction end edges of the bottom frame 21 a.

The front frame 22 is connected to the front end of the bed 21 so as to extend in the left-right direction, and includes: a first right bearing portion 22a, a first left bearing portion 22b, a first connecting plate 22c, and a first grip portion 22 d. Both ends in the left-right direction of the front frame 22 protrude outward in the left-right direction from both ends in the left-right direction of the bed 21 in a plan view (see fig. 3). That is, in the front frame 22, the first right bearing portion 22a is a portion protruding from the right end of the bed portion 21 to the right side in the left-right direction, and the first left bearing portion 22b is a portion protruding from the left end of the bed portion 21 to the left side in the left-right direction.

The first right bearing portion 22a cooperates with a second right bearing portion 23a of a rear frame 23 described later to support the first swing gate 26 rotatably about an axis extending in the front-rear direction. The first right bearing portion 22a includes: an upper surface 22a1 located higher than the surface of the top plate 21b, a lower surface 22a2 located lower than the lower end of the bottom frame 21a, and a side surface 22a3 curved leftward from the rear side to the front side in the front-rear direction in plan view.

By forming the side surface 22a3 of the first right bearing portion 22a in a curved shape in this way, the impact of a medical practitioner or the like when colliding with the first right bearing portion 22a can be reduced.

The first left bearing portion 22b cooperates with a second left bearing portion 23b of the rear frame 23 described later to support the second swing gate 28 rotatably about an axis extending in the front-rear direction. The first left bearing portion 22b includes: an upper surface 22b1 located at the same height as the upper surface 22a1 of the first right bearing portion 22a, a lower surface 22b2 located at the same height as the lower surface 22a2 of the first right bearing portion 22a, and a side surface 22b3 curved rightward from the rear side to the front side in the front-rear direction in a plan view.

By forming the side surface 22b3 of the first left bearing portion 22b in a curved shape in this way, the impact of a medical practitioner or the like when colliding with the first left bearing portion 22b can be reduced.

The first connecting plate 22c is a rectangular plate member extending in the left-right direction, and connects between the first right bearing portion 22a and the first left bearing portion 22b in the left-right direction. The upper end edge of the first connecting plate 22c is located higher than the surface of the top plate 21b and slightly lower than the upper surface 22a1 of the first right bearing portion 22a (see fig. 6). The lower end edge of the first linking plate 22c is located at a position lower than the lower end surface of the bottom frame 21a and slightly higher than the lower surface 22a2 of the first right bearing portion 22a (see fig. 5).

The first right bearing portion 22a, the first left bearing portion 22b, and the first connecting plate 22c are welded or bolted to the bottom frame 21 a.

The first grip portion 22d is a rod-shaped member extending in the left-right direction, and is connected between the first right bearing portion 22a and the first left bearing portion 22b on the outer side (front side) of the first connecting plate 22c in a state parallel to the first connecting plate 22 c. Since a space long in the left-right direction is formed between the first grip portion 22d and the first connecting plate 22c, the medical practitioner can easily grip the first grip portion 22 d. That is, the healthcare worker can raise and lower or tilt the bed 20 or move the entire bed 1 for the child by gripping the first grip portion 22d and applying a force to the bed 20.

The rear frame 23 is connected to the rear end of the bed 21 so as to extend in the left-right direction, and includes: a second right bearing portion 23a, a second left bearing portion 23b, a second connecting plate 23c, and a second grip portion 23 d. Both ends in the left-right direction of the second frame 23 protrude outward in the left-right direction from both ends in the left-right direction of the bed 21 in a plan view (see fig. 3). That is, in the rear frame 23, the second right bearing portion 23a is a portion protruding from the right end of the bed portion 21 to the right side in the left-right direction, and the second left bearing portion 23b is a portion protruding from the left end of the bed portion 21 to the left side in the left-right direction.

The second right bearing portion 23a cooperates with the first right bearing portion 22a of the front frame 22 to rotatably support the first swing gate 26 about an axis extending in the front-rear direction. The second right bearing portion 23a includes: an upper surface 23a1 located higher than the surface of the bed plate 21b, a lower surface 23a2 located lower than the lower end of the bottom frame 21a, and a side surface 23a3 curved rightward from the front side to the rear side in the front-rear direction in plan view.

By forming the side surface 23a3 of the second right bearing portion 23a in a curved shape in this way, the impact of the medical practitioner or the like when the second right bearing portion 23a is expanded can be reduced.

The second left bearing portion 23b cooperates with the first right bearing portion 22b of the front frame 22 to rotatably support the second swing gate 28 about an axis extending in the front-rear direction. The second left bearing portion 23b includes: an upper surface 23b1 located at the same height as the upper surface 23a1 of the second right bearing portion 23a, a lower surface 23b2 located at the same height as the lower surface 2 of the second right bearing portion 23a, and a side surface 23b3 curved leftward from the front side to the rear side in the front-rear direction in plan view.

By forming the side surface 23b3 of the second left bearing portion 23b in a curved shape in this way, the impact of a medical practitioner or the like when colliding with the second left bearing portion 23b can be reduced.

The second connecting plate 23c is a rectangular plate member that is long in the left-right direction and short in the height direction, and connects the second right bearing portion 23a and the second left bearing portion 23b in the left-right direction. The upper end edge of the second connecting plate 23c is located at a position higher than the surface of the top plate 21b and slightly lower than the upper surface 23a1 of the second right bearing portion 23a (see fig. 6). The lower end edge of the second linking plate 23c is located at a position lower than the lower end edge of the bottom frame 21a and slightly higher than the lower surface 23a2 of the second right bearing portion 23a (see fig. 4).

The second right bearing portion 23a, the second left bearing portion 23b, and the second connecting plate 23c are welded or bolted to the bottom frame 21 a.

The second grip portion 23d is a rod-shaped member extending in the left-right direction, and is connected between the second right bearing portion 23a and the second left bearing portion 23b on the outer side (rear side) of the second connecting plate 23c in a state parallel to the second connecting plate 23 c. Since a space long in the left-right direction is formed between the second grip portion 23d and the second linking plate 23c, the second grip portion 23d can be easily gripped by the medical practitioner. That is, the healthcare worker can raise and lower or tilt the bed 20 or move the entire bed 1 for the child by gripping the second grip portion 23d and applying a force to the bed 20.

The first fixing fence 24 is a rectangular roll-off preventing fence detachably fixed to an inner surface (a surface standing on the top plate 21 b) of the first connecting plate 22c of the front frame 22 in a standing state. Two wire attaching portions 24a are provided at the center portion in the left-right direction of the first fixing fence 24 so as to extend in the height direction, and the wire attaching portions 24a have a plurality of wire holes through which wires such as medical tubes and signal cables for medical equipment can be inserted. The two wire attaching portions 24a are detachably provided on the first fixed fence 24, and for example, as shown in fig. 5, only one wire attaching portion 24a is provided on the first fixed fence 24.

The first fixing fence 24 may be detachably fixed to the first coupling plate 22c as described above, or may be fixed so as not to be detachable.

The second fixing fence 25 is a rectangular roll-off preventing fence detachably fixed to an inner surface (a surface standing on the top plate 21 b) of the second connecting plate 23c of the rear frame 23 in a standing state. Similarly to the first fixing fence 24, two wire attaching portions 25a having a plurality of wire holes are provided in the center portion in the left-right direction of the second fixing fence 25 so as to extend in the height direction. The two wire attaching portions 25a are detachably provided on the second fixed fence 25, and only one wire attaching portion 25a may be provided on the second fixed fence 25 as shown in fig. 5, for example.

The second fixing fence 25 may be detachably fixed to the second coupling plate 23c as described above, or may be fixed without being detachable.

The first fixing fence 24 and the second fixing fence 25 are made of a transparent plate material. This can prevent the child patient from feeling oppressive, and the medical practitioner can easily visually confirm the state of the child patient on the mattress placed on the bed portion 21. In addition, lattice-shaped grids may be used as the first fixed grid 24 and the second fixed grid 25.

The first rotating fence 26 is a roll-off preventing fence connected to a space between the first right bearing portion 22a of the front frame 22 and the second right bearing portion 23a of the rear frame 23 so as to be rotatable about an axis extending in the front-rear direction. The first rotating grid 26 has: a rectangular first substrate 26a extending in the front-rear direction, and a rectangular first transparent plate 26b integrally connected to the first substrate 26 a. The first transparent plate 26b is connected to the first substrate 26a so as to be positioned inside the first substrate 26a (on the bed portion 21 side) in a state where the first rotary fence 26 stands.

A first rotation shaft (not shown) extending to the front side in the front-rear direction is provided at the front end portion in the front-rear direction of the first base plate 26a, and a second rotation shaft (not shown) extending to the rear side in the front-rear direction is provided at the rear end portion in the front-rear direction of the first base plate 26 a. When the first rotary fence 26 is viewed in a standing state, the first rotary shaft and the second rotary shaft are provided below the first substrate 26 a.

Fig. 7 is an enlarged view of the area a1 shown in fig. 4, and fig. 8 is an enlarged view of the area a2 shown in fig. 5. As shown in fig. 7, a rotary bearing 22a4 is provided at a lower portion of the first right bearing portion 22a of the front frame 22, and the rotary bearing 22a4 extends in the front-rear direction and has a hole (not shown) into which the first rotary shaft of the first rotary fence 26 is inserted. On the other hand, as shown in fig. 8, a rotary bearing 23a4 is provided at a lower portion of the second right bearing portion 23a of the rear frame 23, and the rotary bearing 23a4 extends in the front-rear direction and has a hole (not shown) into which the second rotary shaft of the first rotary fence 26 is inserted.

The first rotation shaft of the first rotating fence 26 is inserted into the rotation bearing 22a4 of the first right bearing portion 22a, and the second rotation shaft of the first rotating fence 26 is inserted into the rotation bearing 23a4 of the second right bearing portion 23 a. Thus, the first rotating fence 26 is rotatably connected between the first right bearing portion 22a of the front frame 22 and the second right bearing portion 23a of the rear frame 23 about an axis extending in the front-rear direction.

The first locking mechanism 27 restricts rotation of the first rotating fence 26 in a state where the first rotating fence 26 stands, and the first locking mechanism 27 includes: a first locking pin 27a provided on the first right bearing portion 22a of the front frame 22 to be movable in the front-rear direction (see fig. 7); a first lock release operation portion 27b provided so as to be exposed to the outside at an upper surface 22a1 of the first right bearing portion 22 a; and a first locking pin forcibly moving mechanism provided inside the first right bearing portion 22a (not shown).

As shown in fig. 7, a surface (opposing surface) 22a5 that opposes the front end surface 26a1 of the first board 26a in the state where the first swing gate 26 stands is provided at an upper portion of the first right bearing portion 22a of the front frame 22. The first lock pin 27a is biased rearward in the front-rear direction by a spring (not shown) such as a spring so that its tip end portion protrudes from the opposing surface 22a5 of the first right bearing portion 22 a. Therefore, as shown in fig. 4 and 7, in a state where the first swing gate 26 is tilted down to the right in the left-right direction (i.e., in a state where the distal end portion of the first locking pin 27a is not shielded), the distal end portion of the first locking pin 27a protrudes from the opposing surface 22a5 of the first right bearing portion 22 a.

On the other hand, as shown in fig. 5, a lock hole 26a2 is provided in the front end surface 26a1 of the first base plate 26a of the first rotary fence 26, and in a state where the first rotary fence 26 stands, the lock hole 26a2 is located on the movement axis of the first lock pin 27a and is formed to extend rearward in the front-rear direction.

In the process of raising the first rotary fence 26 so as to rotate about the axis extending in the front-rear direction, when the distal end portion 26a3 (see fig. 7) of the first substrate 26a comes into contact with the distal end portion of the first locking pin 27a, a pressing force toward the front-rear direction front side is applied to the first locking pin 27a by the rotational force of the first rotary fence 26, and as a result, the first locking pin 27a moves toward the front-rear direction front side.

In a state where the first rotary fence 26 is further rotated to be raised, the lock hole 26a2 of the first base plate 26a is positioned on the movement axis of the first lock pin 27a (i.e., the tip end portion of the first lock pin 27a is not shielded), and therefore the first lock pin 27a is moved to the rear side in the front-rear direction again by the force of the spring and inserted into the lock hole 26a 2.

As a result, the first rotary fence 26 is restricted (locked) from rotating by the first locking pin 27a in the standing state.

As shown in fig. 7, the first lock release operation portion 27b includes: an L-shaped operation plate 27b1, the operation plate 27b1 being connected to the upper surface 22a1 of the first right bearing portion 22a so as to be slidable in the front-rear direction; and an operation knob 27b2 provided on the operation plate 27b1 so as to be movable in the height direction, the operation knob 27b2 restricting or allowing the sliding of the operation plate 27b 1. The first lock pin forcibly moving mechanism, not shown, forcibly moves the first lock pin 27a forward in the forward-backward direction in conjunction with the sliding operation of the operation plate 27b 1.

Fig. 7 shows a state (initial state) in which the operation panel 27b1 and the operation knob 27b2 are located at initial positions, respectively. In the initial state, the lower end of the operating knob 27b2 is lowered to a position in contact with the upper surface of the operating plate 27b 1. A pin (not shown) extending downward is provided at the lower end of the operating handle 27b2, and in the initial state, the pin serves as a stopper, and the operating plate 27b1 is in a non-slidable state.

As shown in fig. 9, when the operating handle 27b2 is lifted upward in the height direction by a health care professional or the like, the pins are displaced from the movement axis of the operating plate 27b1, and the operating plate 27b1 is in a slidable state. As shown in fig. 10, when the operator or the like slides the operation panel 27b1 forward and backward, the first lock pin forcibly moving mechanism forcibly moves the first lock pin 27a forward in the forward and backward direction in conjunction with the sliding operation of the operation panel 27b1, thereby releasing the lock of the first rotary fence 26.

When the first lock pin 27a returns to the initial position after the first swing gate 26 is unlocked, the operation plate 27b1 also automatically returns to the initial position in conjunction with the first lock pin 27 a.

In this way, the healthcare worker can unlock the first rotary fence 26 by performing two-stage operations of the lifting operation of the operation knob 27b2 and the sliding operation of the operation plate 27b 1. Therefore, the healthcare practitioner does not release the lock of the first rotation fence 26 by only slightly hitting the first lock release operation portion 27b, and the healthcare practitioner can be prevented from releasing the lock of the first rotation fence 26 at an unexpected timing. In addition, even if the child patient accidentally (or intentionally) touches the first lock release operation portion 27b, the lock of the first rotating fence 26 is not easily released.

The second rotating fence 28 is a roll-off preventing fence connected to a space between the first left bearing portion 22b of the front frame 22 and the second left bearing portion 23b of the rear frame 23 so as to be rotatable about an axis extending in the front-rear direction.

The structure of the second rotary fence 28 is the same as that of the first rotary fence 26. The coupling structure of the second swing gate 28 to the first left bearing portion 22b of the front frame 22 and the coupling structure of the first swing gate 26 to the second right bearing portion 23a of the rear frame 23 (see fig. 8) are the same. The coupling structure of the second swing gate 28 to the second left bearing portion 23b of the rear frame 23 and the coupling structure of the first swing gate 26 to the first right bearing portion 22a of the front frame 22 (see fig. 7) are the same.

Therefore, the description of the structure of the second swing frame 28, the connection structure between the second swing frame 28 and the first left bearing portion 22b of the front frame 22, and the connection structure between the second swing frame 28 and the second left bearing portion 23b of the rear frame 23 will be omitted.

The second lock mechanism 29 restricts rotation of the second rotating fence 28 in a state where the second rotating fence 28 stands, and the second lock mechanism 29 includes: a second lock pin 29a provided on a second left bearing portion 23b (see fig. 6) of the rear frame 23 so as to be movable in the front-rear direction; a second unlocking portion 29b, the second unlocking portion 29b being exposed to the outside at the upper surface 23b1 of the second left bearing portion 23 b; and a second lock pin forcible moving mechanism provided inside the second left bearing portion 23b (not shown).

The components of the second lock mechanism 29 are the same as those of the first lock mechanism 27 (see fig. 7), and therefore, the description of the structure of the second lock mechanism 29 will be omitted.

As described above, the child bed 1 according to the present embodiment includes: a first rotary fence 26, the first rotary fence 26 being rotatably provided at the right edge of the bed portion 21; a first locking mechanism 27, the first locking mechanism 27 restricting rotation of the first rotating fence 26 in a state where the first rotating fence 26 stands; a second swing gate 28, the second swing gate 28 being rotatably provided on the left edge of the bed 21; and a second lock mechanism 29, wherein the second lock mechanism 29 restricts the rotation of the second swing gate 28 in a state where the second swing gate 28 is erected.

The first locking mechanism 27 is defined in one of the first right bearing portion 22a and the second right bearing portion 23a that supports the first rotating fence 26. The second lock mechanism 29 is defined in one of the first left bearing portion 22b and the second left bearing portion 23b that supports the second swing gate 28.

In the child bed 1 including the first and second swing fences 26, 28, the first and second swing fences 26, 28 for preventing the child patient from rolling down are locked (rotation is restricted) in the standing state when the child patient receives treatment or the like on the bed 20. On the other hand, when the medical professional transfers the child patient to another child bed, a wheelchair, or the like, for example, the first lock release operation unit 27b is operated to release the lock of the first turning fence 26, and then the first turning fence 26 is required to be lowered forward (rightward in the left-right direction).

In this way, during the transfer work of the child patient, the healthcare worker needs to perform a series of works of tilting the first swing fence 26 forward after the lock of the first swing fence 26 is released, but since the transfer work of the child patient frequently occurs, the healthcare worker is burdened by performing the series of works every time the transfer work is performed in the conventional bed layout.

In particular, as in the child's bed 1 according to the present embodiment, when the center of gravity of the first swing fence 26 is positioned inside the bed 20 in a state where the first swing fence 26 is standing up (for example, when the first transparent plate 26b is connected to the inside of the first base plate 26 a), the first swing fence 26 may fall down to the inside of the bed 20 due to its own weight when the lock of the first swing fence 26 is unlocked.

Therefore, when releasing the lock of the first rotating fence 26, the medical practitioner needs to hold the first rotating fence 26 with one hand and operate the first lock releasing operation part 27b with the other hand. That is, after the locking of the first turning fence 26 is released, the medical practitioner must support the first turning fence 26 to be turned down toward the inside of the bed 20 with only one hand, which is a physical burden for the medical practitioner of women in particular. The same applies to the case where the child patient is transferred from the left side of the bed 20, that is, from the installation side of the second swing fence 28.

In order to solve the technical problem, in the child bed 1 of the present embodiment, the bed 20 further includes: a first biasing mechanism 30 that biases the first swing gate 26 in the tilting direction (right side in the left-right direction), that is, in a direction opposite to the bed portion 21, in a state where the rotation of the first swing gate 26 is restricted (locked) by the first locking mechanism 27; the second biasing mechanism 40 biases the second swing gate 28 in the tilting direction (left side in the left-right direction), that is, in the direction toward the opposite side of the bed 21, in a state where the rotation of the second swing gate 28 is restricted by the second lock mechanism 29.

As shown in fig. 8, the first biasing mechanism 30 is provided in the second right bearing portion 23a, and the second right bearing portion 23a is different from the first right bearing portion 22a provided with the first locking mechanism 27, of the first right bearing portion 22a and the second right bearing portion 23a that support the first swing gate 26. The first biasing mechanism 30 includes a plate spring 31 provided in the second right bearing portion 23a of the rear frame 23. Fig. 11 is a perspective view showing the entire structure of the plate spring 31. As shown in fig. 11, the plate spring 31 is an L-shaped plate spring having a first flat plate portion 31b and a second flat plate portion 31c, wherein the first flat plate portion 31b has a projection 31a on one surface, and the second flat plate portion 31c is connected to the first flat plate portion 31b at right angles and extends in a direction opposite to a projecting direction of the projection 31 a. A bolt hole 31d is formed in the center of the second flat plate portion 31c, and the bolt hole 31d is used to bolt and fasten the plate spring 31 to the second right bearing portion 23a of the rear frame 23.

The plate spring 31 is a member obtained by bending and punching a rectangular metal plate, and the first flat plate portion 31b and the second flat plate portion 31c are integrated. The projection 31a is also integrally formed by bending the end of the first flat plate 31b into a substantially S-shape, and the peak 31a1 thereof protrudes from the side surface 31b1 of the first flat plate 31 b. According to the leaf spring 31, the magnitude of the elastic force (restoring force) of the leaf spring 31 can be adjusted by adjusting the projecting height dimension of the peak portion 31a1 with respect to the side surface 31b 1.

When the plate spring 31 is viewed in the direction of connecting the first flat plate 31b and the second flat plate 31c, the length L1 of the first flat plate 31b is greater than the length L2 of the second flat plate 31 c. According to the plate spring 31, for example, as compared with the case where L1 is set to L2, the size of the second flat plate portion 31c as a portion fixed to the second right bearing portion 23a can be suppressed to be compact, and sufficient elastic force (restoring force) can be generated in the first flat plate portion 31 b. Therefore, the plate spring 31 is compact and rich in elastic force.

In addition, in the plate spring 31, the projection 31a is formed at a position of the first flat plate portion 31b farthest from the end of the second flat plate portion 31 c. According to the plate spring 31, the position where the first flat plate portion 31b abuts against the first rotary fence 26 when elastically deformed can be set as the formation position of the projection 31a, that is, the end portion of the first flat plate portion 31 b. Therefore, the plate spring 31 can keep the distance between the fulcrum of the first flat plate 31c (the position of the bent portion between the first flat plate 31b and the second flat plate 31 c) and the point of action (the position of the projection 31 a) constant during elastic deformation, and therefore, a stable elastic force (restoring force) can be obtained.

Fig. 12 is a top view of the area shown in fig. 8. As shown in fig. 12, when the first rotating grill 26 is in the state of standing and being locked, the second flat plate portion 31c of the plate spring 31 is fixed (bolted) to the second right bearing portion 23a so that the projection 31a of the first flat plate portion 31b abuts against the first rotating grill 26 (specifically, the rear end portion of the first base plate 26 a) and the angle between the first flat plate portion 31b and the second flat plate portion 31c becomes an acute angle. In addition, in a state before the plate spring 31 is elastically deformed, an angle between the first flat plate portion 31b and the second flat plate portion 31c becomes a right angle.

In this way, when the first swing gate 26 is in a state of being raised and locked, the plate spring 31 is fixed to the second right bearing portion 23a so that its shape is elastically deformed. That is, when the first turnstile 26 is in a state of standing and being locked, the first turnstile 26 is continuously biased in the falling direction (right side in the left-right direction) by the restoring force of the plate spring 31 (force to change the angle between the first flat plate portion 31b and the second flat plate portion 31c from an acute angle to a right angle).

By providing the first biasing mechanism 30 as described above, even if the first rotary fence 26 is unlocked by the practitioner operating the first lock release operating portion 27b in a state where the first rotary fence 26 is raised and locked, the first rotary fence 26 falls down in the falling direction by itself, and therefore, the practitioner does not need to support the first rotary fence 26 with one hand.

Therefore, by providing the first urging mechanism 30, the workload of the healthcare worker can be reduced when the healthcare worker performs the transfer operation on the child patient from the right side of the bed 20, that is, the installation side of the first swing fence 26.

As shown in fig. 8, the plate spring 31 is preferably provided at a position higher than the rotation axis (the rotary bearing 23a4) of the first swing gate 26. Accordingly, since a biasing force in the falling direction (right side in the left-right direction) is applied to a position higher than the rotation axis of the first swing gate 26, when the lock of the first swing gate 26 is released, the first swing gate 26 can be reliably caused to fall in the falling direction.

The second biasing mechanism 40 is provided in the first left bearing portion 22b, and the first left bearing portion 22b is different from the second left bearing portion 23b provided with the second lock mechanism 29, among the first left bearing portion 22b and the second left bearing portion 23b that support the second swing gate 28. The second biasing mechanism 40 includes a plate spring 41 (see fig. 3) provided in the first left bearing portion 22b of the front frame 22. The overall structure of the plate spring 41 is the same as that of the plate spring 31 (see fig. 11), and therefore, the description thereof is omitted. The connection structure between the leaf spring 41 and the first left bearing portion 22b of the front frame 22 is the same as the connection structure between the leaf spring 31 and the second right bearing portion 23a of the rear frame 23 (see fig. 8 and 12), and therefore, the description thereof is omitted.

When the second swing gate 28 is in a state of standing and being locked, the plate spring 41 is fixed to the first right bearing portion 22b of the front frame 22 so that the shape thereof is elastically deformed. That is, when the second swing gate 28 is locked in the standing state, the second swing gate 28 is continuously biased in the falling direction (left side in the left-right direction) by the restoring force of the plate spring 41.

By providing the second biasing mechanism 40 as described above, even if the second turn fence 28 is unlocked by the medical practitioner operating the second unlocking operation portion 29b in a state where the second turn fence 28 is raised and locked, the second turn fence 28 falls down in the falling direction by itself, and therefore, it is not necessary for the medical practitioner to support the second turn fence 28 with one hand.

Therefore, by providing the second urging mechanism 40, the workload of the healthcare worker can be reduced when the healthcare worker performs the transfer operation on the child patient from the left side of the bed 20, that is, the installation side of the second swing fence 28.

As described above, according to the child bed 1 of the present embodiment, when the lock of the first turnstile 26 (or the second turnstile 28) locked in the standing state is released, the first turnstile 26 (or the second turnstile 28) does not need to be supported, and therefore, the burden on the medical staff who performs the transfer work on the child patient placed on the bed 20 can be reduced.

The technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

For example, in the above embodiment, the support stand 10 is provided with the caster 12 and is capable of traveling, but the present invention is not limited to this configuration, and may be configured to be attached to the installation surface S without providing the caster 12.

In the above embodiment, the case where the support frame 10 includes the mechanism for movably supporting the bed 20, the mechanism for vertically supporting the bed 20, and the mechanism for tiltably supporting the bed 20 has been exemplified, but the present invention is not limited to this configuration, and a support frame having at least one of the mechanism for movably supporting the bed 20, the mechanism for vertically supporting the bed 20, and the mechanism for tiltably supporting the bed 20 may be adopted.

In the above-described embodiment, the child bed 1 used for the rehabilitation of a child patient in a medical facility has been exemplified as the bed device of the present invention, but the present invention is not limited to this, and can be widely applied to a bed device used for the purpose of treatment, nursing, or transportation in a state where a care subject (person) is lying down, such as a nursing bed used in a nursing facility or a stretcher for emergency transportation.

In the above-described embodiment, the child bed 1 including two swing fences, i.e., the first swing fence 26 and the second swing fence 28, has been described as an example, but the present invention is not limited to this configuration, and can be widely applied to a bed device including one or more swing fences. For example, the grill located on the front side may be tilted toward the front side, or the grill located on the rear side may be tilted toward the rear side.

In the above-described embodiment, the case where the plate spring 31 is used as the first biasing mechanism 30 has been exemplified, but the present invention is not limited to this, and another type of spring such as a coil spring (spring) may be used instead of the plate spring 31. That is, the following coil springs may be used: one end of the coil spring is fixed to one of the bed 21 and the swing gate (the first swing gate 26 or the second swing gate 28), and when the swing gate is restricted from rotating by the lock mechanism (the first lock mechanism 27 or the second lock mechanism 29), the other end of the coil spring is in contact with the other and is compressed.

More specifically, as shown in fig. 13, for example, the coil spring 32 may be connected to the bottom frame 21a of the bed 20 such that the deformation direction (expansion/contraction direction) is parallel to the left-right direction. The number of the coil springs 32 is not limited to one, and a plurality of coil springs 32 may be connected to the bottom frame 21a in the front-rear direction.

For example, as shown in fig. 14, the coil spring 33 may be connected to the first rotating fence 26 (specifically, the first transparent plate 26b) such that the deformation direction (expansion/contraction direction) is parallel to the left-right direction. Of course, when the first rotary fence 26 is raised, the connection position of the coil spring 33 needs to be set so that the coil spring 33 comes into contact with the bottom frame 21a or the top plate 21 b. The number of the coil springs 33 is not limited to one, and a plurality of coil springs 33 may be connected to the first rotary fence 26 in the front-rear direction.

As shown in fig. 15, for example, the plate spring 31 may be used in combination with the coil spring 32. As shown in fig. 16, for example, the plate spring 31 may be used in combination with the coil spring 33.

According to the configuration shown in fig. 15 and 16, since the first turning fence 26 in the erected state can be biased in the falling direction by a stronger force, even when the first turning fence 26 is heavy, the first turning fence 26 can be reliably caused to fall in the falling direction when the lock of the first turning fence 26 is released.

The second biasing mechanism 40 can also be configured similarly to the first biasing mechanism 30 shown in fig. 13 to 16.

Industrial applicability

According to the present invention, it is possible to provide a bed device that reduces the burden on an operator who performs a transfer operation on a human body placed on a bed. Therefore, the industrial applicability is large.

Claims (8)

1. A bed device is characterized by comprising:

a support stand; and

a bed supported on the support frame;

the bed is provided with:

a bed section;

a rotating grid rotatably provided at one side edge of the bed section;

a lock mechanism that restricts rotation of the rotary fence in a state where the rotary fence is erected; and

and a biasing mechanism having one end fixed to a bed, wherein the other end of the biasing mechanism opposite to the one end biases the swing gate in a tilting direction along an outer side in a left-right direction of the bed portion in a state where the rotation of the swing gate is restricted by the locking mechanism.

2. The cot device according to claim 1,

the urging mechanism has a spring whose shape is elastically deformed when the rotation of the rotary fence is restricted by the lock mechanism,

and applying force to the rotating grid in the toppling direction through the restoring force of the spring.

3. The cot device according to claim 2,

the spring is an L-shaped plate spring having a first flat plate portion having a projection on one surface and a second flat plate portion connected to the first flat plate portion at right angles and extending in a direction opposite to a projecting direction of the projection,

the second flat plate portion of the plate spring is fixed to a bearing portion of the rotary grid in such a manner that: when the rotation of the rotation gate is restricted by the lock mechanism, the projection of the first flat plate portion abuts against the rotation gate, and an angle between the first flat plate portion and the second flat plate portion becomes an acute angle.

4. The cot device according to claim 3,

the first flat plate portion is longer than the second flat plate portion.

5. The cot device according to claim 3,

the protrusion is provided at an end of the first flat plate portion farthest from the second flat plate portion.

6. The cot device according to claim 4,

the protrusion is provided at an end of the first flat plate portion farthest from the second flat plate portion.

7. The cot device according to claim 2,

the spring is a coil spring, one end of which is fixed to either the bed or the swing gate, and the other end of which abuts against and is compressed by the other of the bed and the swing gate when the rotation of the swing gate is restricted by the lock mechanism.

8. The cot device according to any one of claims 1 to 7,

the support stand includes:

a mechanism for supporting the bed to be movable;

a mechanism for supporting the bed to be freely lifted and lowered; and

a mechanism for supporting the bed to freely tilt;

at least one of (a).

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