JP6399287B2 - Incubator - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an incubator in which a bed fence for preventing a fall is provided on a bed portion for laying a newborn so as to be opened and closed.

  Incubators are used to place the temperature and humidity in the optimum environment for premature newborns, etc. Among them, childcare called an open incubator (infant warmer) is used for appropriate medical examination and medical treatment. The vessel is known. The open type incubator has a bed part and a heater part arranged above the bed part, and a bed fence called a baby guard is provided around the bed part. The bed fence is provided so as to move downward to open the periphery of the bed portion in order to increase the treatment efficiency when performing a medical treatment or the like.

  As this type of incubator, for example, an incubator of Patent Document 1 is disclosed. This incubator is provided with a hinge part on the lower side of each bed fence provided around the bed part, and is attached to the hinge part so that it can be rotated 180 °, and the bed fence is in a vertical state. It is in a closed state when it is erected, and is provided so that the side of the bed portion is opened when the bed fence is brought down and hung from the edge of the bed portion.

Japanese Patent No. 4101353

However, in the incubator that opens and closes the bed rail at the hinge portion as in Patent Document 1, a large space for rotating the bed rail is required on the side of the bed portion, and therefore a position close to the wall or the like. Then it is difficult to open and close the bed fence.
In addition, when the bed fence is rotated from the closed state to the open state and hung down, the bed fence is turned upside down, and the inner surface side of the bed fence facing the bed side in the closed state is the outer surface in the open state. Directed to the side. As a result, when the treatment person or the like approaches the bed, the treatment person's knees or thighs may come into contact with the outer surface of the bed fence, and there may be a risk that various bacteria may adhere to the contacted surface and propagate. When the bed fence is returned to the original vertical state after completion, the contacted surface faces the bed side, which is not preferable for hygiene purposes.

  The present invention has been made in view of such circumstances, and the bed fence can be opened and closed even in places where the surrounding space is small, and the inner surface side of the bed side does not become the outer surface side when the bed fence is opened and closed. An object of the present invention is to provide an incubator excellent in hygiene by preventing contact with the outside of this surface.

An incubator according to the present invention has a bed portion and a plurality of bed rails which are erected along the periphery of the bed portion and surround the bed portion, and at least one of the bed rails includes the bed rail. An open / close mechanism that opens and closes the side of the bed portion while holding the posture standing up and down is provided , and a lock mechanism that restricts the vertical movement of the bed fence, and a lock state by the lock mechanism A release lever for releasing the lock, and the lock mechanism is engaged with the lock member fixed to the bed portion and a lock member provided on the inner surface of the bed rail so as to be vertically rotatable. A lock member engaging portion and a spring for urging the lock member in the lock direction, and the release lever is provided on the outer surface of the bed rail so as to be vertically rotatable, and the lock member and the release lever Between A connecting member that transmits a vertical rotation operation of the release lever at the time of unlocking to the lock member to vertically rotate the lock member in a lock release direction, and the opening / closing mechanism includes the bed portion And a first link member that connects between the bed fence and a second link member that connects the bed portion and the bed fence at a position below the first link member. The intermediate position of the first link member in the length direction is supported on the back surface of the bed portion by a tension coil spring, and the tension coil spring is an intermediate position between the closed position and the open position of the bed rail. It is provided so as to be almost horizontal .

Since the side of the bed part is opened and closed by moving it up and down without rotating, the bed can be opened and closed without requiring a large space for opening and closing the bed fence. Moreover, since it moves, maintaining the standing attitude | position, the inner surface of a bed fence does not face outward, the contact of a treatment person to an inner surface can be avoided, and it is hygienic.
In addition, since the opening / closing mechanism is a parallel link mechanism, the bed fence can be opened and closed while maintaining the standing posture of the bed rail. And it is a simple structure by a parallel link mechanism, and can reduce cost.
In this case, when the bed fence is released from the closed state, the lock lever is also rotated via the connecting member by operating the release lever against the spring force of the lock member. The engagement with the lock member engaging portion can be released. On the other hand, when the bed fence is changed from the open state to the closed state, if the bed fence is moved in the closing direction and arranged on the side of the bed portion, the lock member is brought into contact with the lock member engaging portion. When the lock member is engaged with the lock member engaging portion and this state is maintained by the spring, the closed state can be secured. This closed state is maintained by a spring unless the release lever is operated, and the bed rail does not move in the opening direction carelessly.

In the incubator according to the present invention, the locking mechanism is provided on both sides of the bed rail, the connecting member is constituted by a connecting rod, and a central portion in the length direction of the releasing lever can be rotated vertically. An end portion that passes through a position between the shaft to be supported and the operation end portion of the release lever and is provided with an engagement concave portion in which both end portions engage with the lock member engagement portion is the lock member. It is preferable to penetrate through the opposite end portion through a shaft that is supported so as to be vertically rotatable.

  In this case, it is preferable that the connection portion between the first link member and the second link member with the bed portion is disposed at a position below the bed portion.

  By adopting such a configuration, one end portion of the parallel link mechanism can be arranged in a state of being pulled down below the bed portion, and accordingly, from the bed portion of the other end portion (bed rail side) of the parallel link mechanism. The protrusion to the side can be suppressed, and it does not interfere with the treatment work of the treatment person or the like.

  According to the incubator of the present invention, the side of the bed part can be opened and closed by moving the bed fence in the vertical direction, and it does not protrude greatly from the occupied size of the bed part. It can be opened and closed even in a few places, and it is less likely to come into contact with other medical devices installed in the vicinity. Also, since the standing posture of the bed fence does not change when opening and closing, even if the treatment person etc. approaches the bed part in the state where the bed fence is opened, it is suppressed to contact only with the outer surface of the bed fence, Since contact can be surely prevented, there is no possibility that germs adhere to the inner surface and propagate or dirt is attached, which is excellent in terms of hygiene.

It is a perspective view which shows one Embodiment of the incubator which concerns on this invention. It is a top view of the bed part of the incubator of FIG. It is a perspective view of a bed part. It is a perspective view which shows the state which open | released the bed rail of a bed part. It is a side view of a bed part. It is arrow sectional drawing which follows the AA line of FIG. It is arrow sectional drawing which follows the BB line of FIG. It is an arrow line view of the principal part which abbreviate | omitted the link member along the CC line of FIG. It is sectional drawing which shows the history of the opening operation | movement of a bed fence.

Hereinafter, embodiments of the incubator of the present invention will be described with reference to the drawings.
As shown in FIG. 1 as a whole, the incubator of this embodiment is provided with a bed portion 2 on a base 1, and a frame portion 3 standing vertically from one end portion of the bed portion 2, A canopy 4 is provided at the upper end of the frame portion 3. The canopy 4 is disposed so as to face the upper surface of the bed portion 2, and a heater and an illumination lamp (both not shown) are provided toward the bed portion 2. The base 1 is provided so as to be movable up and down with respect to the leg 5, and a caster 6 and a lift pedal 7 are provided on the leg 5. The frame unit 3 is provided with a panel unit 8 for various operations.

As shown in FIGS. 2 to 4, a plurality of vertical bed rails 10 and 11 are disposed around the bed portion 2 so as to surround the bed portion 2. Of the four sides of the bed portion 2, the bed rail 10 on one side where the frame portion 3 is provided is fixed to the bed portion 2, but the bed rail 11 on the other three sides is provided to be movable up and down. These three bed rails 11 can open and close three sides of the bed portion 2. Although these three bed rails 11 are different in size but have substantially the same structure, the following description will be given with the same reference numerals.
Hereinafter, details of the bed rail 11 and its opening / closing mechanism 12 will be described.

The bed fence 11 has a fence base 20 constituting the lower end portion thereof, and a plate-like member 21 erected upward from the fence base 20.
The plate-like member 21 is made of, for example, a transparent resin plate such as a transparent acrylic plate, and the plate-like member 21 is attached to the fence base 20 in a standing state.
The fence base 20 of the bed fence 11 is supported by the bed 2 via an opening / closing mechanism 12, and the opening / closing mechanism 12 includes a parallel link mechanism 14, a lock mechanism 40, and a release lever 41.

  The parallel link mechanism 14 includes a first link member 31 that connects the upper end portion of the bed rail 11 and the back surface portion of the bed portion 2, and a lower end portion and a bed portion of the bed rail 11 at a position below the first link member 31. And a second link member 32 that connects the two back surface portions. Both end portions of the first link member 31 and the second link member 32 are rotatably supported at predetermined positions of the bed portion 2 and the bed rail 11 by shafts 33 to 36 as connection portions, respectively. The member 31 and the second link member 32 are provided so as to be rotatable about the respective shafts 33 and 35 provided on the bed portion 2 side while being maintained in a substantially parallel state. The opening / closing mechanism 12 can maintain a vertical posture when the bed fence 11 is moved up and down.

The shafts 33 and 35, which are connecting portions of the first link member 31 and the second link member 32 to the bed portion 2, are disposed on the back surface portion of the bed portion 2. Among these, the second link member 32 is connected to the lower end of a bracket 37 extending further downward on the back surface of the bed portion 2 by a shaft 35. The shaft 33 of the first link member 31 is connected to the back surface portion of the bed portion 2 at a position higher than the shaft 35 of the bracket 37.
The first link member 31 is supported on the back surface portion of the bed portion 2 by a tension coil spring 38 at an intermediate position in the length direction. The tension coil spring 38 is provided so as to be substantially horizontal in the vicinity of an intermediate position between the closed position and the open position of the bed rail 11.

The fence base 20 is provided with a lock mechanism 40 that restricts the vertical movement of the bed fence 11 and a release lever 41 for releasing the locked state by the lock mechanism 40. The lock mechanism 40 includes a lock member 42, a lock member engaging portion 43, and a spring (not shown).
The lock member 42 is disposed in the vicinity of both side portions of the bed rail 11 and is provided on the inner surface portion of the bed rail 11 via a shaft 45 so as to be vertically rotatable.
In this embodiment, the lock member engagement portion 43 is formed of an engagement pin attached in the horizontal direction, and is fixed by brackets 44 near both sides of the bed portion 2. On the other hand, an engagement recess 46 is formed in the lock member 42 so as to cut out a part thereof, and the engagement recess 46 is disposed so as to be engageable with the lock member engagement portion 43. And the closed state of the bed fence 11 is hold | maintained because the engagement recessed part 46 of the lock member 42 engages with the lock member engaging part 43. FIG. The lock member engaging portion 43 may not be in the shape of a pin as long as the engaging recess 46 can be engaged, and may be provided in an appropriate shape.

The lock member 42 is biased in the lock direction by a spring (not shown). This spring is a torsion coil spring and is attached in a state of being wound around the shaft 45 of the lock member 42, and urges the lock member 42 counterclockwise in FIG. When the lock member 42 is rotated in the clockwise direction against the urging force of the spring, the engagement recess 46 is released from the lock member engagement portion 43, the lock member 42 is unlocked, and the bed fence 11 is opened. It becomes possible to operate.
As shown in FIG. 6, the tip portion connected to the engaging recess 46 of the lock member 42 is formed on the inclined surface 42 a, and as shown by the two-dot chain line in FIG. 9 when the opened bed fence 11 is closed. Further, the inclined surface 42a at the tip of the lock member 42 abuts on the lock member engaging portion (engagement pin) 43 and is pushed in as it is, so that the inclined surface 42a is pushed by the lock member engaging portion 43 and this inclination The lock member 42 can be rotated against the biasing force of the spring so as to get over the surface 42 a, and the engagement recess 46 can be engaged with the lock member engagement portion 43.

In addition, an opening 47 that opens to the outside of the fence base 20 is provided at the center position in the width direction of the fence base 20, and a lower end 41 a that is an operation end of the release lever 41 faces the opening 47. It has been.
The release lever 41 is formed in a shape that can be operated by being hooked by hand from below, and is disposed near the center of the bed rail 11. As shown in FIG. 7, the release lever 41 is attached to the fence base 20 by a shaft 48 whose one end is horizontal, and is provided so as to be vertically rotatable via the shaft 48. The shaft 48 of the release lever 41 and the shaft 45 of the lock member 42 are arranged on the same axis. In FIG. 9, the reference numeral 45 is shown in parentheses with the reference numeral 45.

As shown in FIG. 8, a long connection member 50 is provided between the lock member 42 and the release lever 41. The lock member 42 and the release lever 41 are integrated through the connection member 50, and the vertical rotation operation of the release lever 41 is transmitted to the lock member 42 through the connection member 50, so that the lock member 42 is perpendicular to the release direction. It can be turned. In the illustrated example, the connecting member 50 is constituted by a single long connecting rod, and the central portion in the length direction passes through the position between the shaft 48 of the release lever 41 and the operation end 41a, The portion penetrates the end portion on the opposite side to the end portion where the engagement concave portion 46 of the lock member 42 is provided via the shaft 45. The release lever 41 and the through hole of the lock member 42 penetrating the connection member 50 are formed to have a larger diameter than the connection member 50, and both the through portions support the connection member 50 in a freely rotatable manner.
When the release lever 41 is rotated clockwise in FIG. 7, the lock member 42 connected by the connecting member 50 is rotated clockwise around the shaft 45 as shown by a two-dot chain line in FIG. The recess 46 is released from the lock member engaging portion 43, and the lock is released.

Then, operation | movement and an effect | action of the incubator in the said embodiment of this invention are demonstrated.
A biasing force is exerted on the lock member 42 in the counterclockwise direction of FIG. 6 about the shaft 45 by a spring, and the lock member 42 rotates in the locking direction by this biasing force and engages with the lock member engaging portion 43. The recess 46 is locked. Thereby, as shown in FIGS. 1-3, the closed state of the bed fence 11 is hold | maintained.

When the bed fence 11 is operated from the closed state shown in FIGS. 1 to 3 to the open state shown in FIG. 4, the lower end 41 a of the release lever 41 exposed at the opening 47 of the fence base 20 of the bed fence 11 is changed. The release lever 41 is rotated in the clockwise direction of FIG. 7 by grasping and pulling it forward. Accordingly, the lock member 42 connected to the release lever 41 via the connection member 50 rotates in the clockwise direction of FIG. 6 around the shaft 45 in conjunction with the release lever 41.
When the lock member 42 rotates, the engaging recess 46 engaged with the lock member engaging portion 43 is detached from the lock member engaging portion 43 as shown by a two-dot chain line in FIG.

By pulling the bed rail 11 forward while maintaining this unlocked state, the bed rail 11 can be moved from the closed position indicated by the two-dot chain line in FIG. 9 to the open position. At this time, since the bed fence 11 is moved by the parallel link mechanism 14, it is moved downward while maintaining its standing posture.
For this reason, the inner surface of the bed rail 11 does not face outward, and even in an open state, the outer surface of the bed rail 11 is arranged facing outward, so that a treatment person touches the inner surface of the bed rail 11. Not hygienic.

Moreover, since the one end part of both the link members 31 and 32 of the parallel link mechanism 14 is arrange | positioned under the bed part 2, the bed rail 11 does not protrude greatly to the side of the bed part 2, FIG. As indicated by the solid line arrow, the bed portion 2 can be moved downward only by being slightly separated from the side.
Therefore, it is not necessary to secure a large space for opening and closing on the side of the bed portion 2, and the bed fence 11 can be opened and closed if there is a small space even when the space is close to the wall. .

  In addition, what is necessary is just to perform operation contrary to said case, when operating the bed fence 11 from the open state to the closed state. In this case, as described above, when the lock member 42 is pressed against the lock member engaging portion 43 as shown by a two-dot chain line in FIG. By the action, the lock member 42 rotates in the opening direction along the lock member engaging portion 43 against the urging force of the spring, and the lock member engaging portion 43 is engaged with the engaging recess 46 to be in the locked state. can do.

Further, in this series of opening / closing operations, the first link member 31 of the parallel link mechanism 14 supporting the fence base 11 is brought into the bed portion 2 by the tension coil spring 38 which is in a substantially horizontal state near the intermediate position of the opening / closing operation. In the first half of the operation until the tension coil spring 38 becomes substantially horizontal, either in the operation of opening or closing the fence base 11, in the first half of the operation. The operation is assisted by the urging force of the tension coil spring 38 and can be operated smoothly with a light force.
On the other hand, in the latter half of the operation after the tension coil spring 38 becomes substantially horizontal, the tension coil spring 38 is stretched, so that the urging force increases, but when the fence base 11 is opened, the fence Since the weight of the base 11 also acts, it can be operated with a relatively light force and stops at a position where the tensile force of the tension coil spring 38 and the weight of the fence base 11 are balanced. When the fence base 11 is closed, the fence base 11 is moved and locked against the tensile force of the tension coil spring 38, so that a reliable operational feeling can be obtained and the lock can be ensured. it can.

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various changes and modifications can be made based on the spirit of the invention described in the claims. is there.
For example, detailed structures such as an opening / closing mechanism, a lock mechanism, and a release lever are not limited to the structure of the embodiment, and other structures may be used.
Moreover, although it was made possible to open and close three of the plurality of bed rails surrounding the bed portion, the present invention includes a configuration in which at least one bed rail includes the above-described opening / closing mechanism.

2 Bed parts 10, 11 Bed fence 12 Opening / closing mechanism 14 Parallel link mechanism 20 Fence base 21 Plate member 31 First link member 32 Second link member 33-36 Axis (connection part)
37 Bracket 40 Lock mechanism 41 Release lever 41a Lower end portion 42 Lock member 42a Inclined surface 43 Lock member engagement portion 46 Engagement recess 47 Opening portion 50 Connection member

Claims (3)

A bed portion, and a plurality of bed rails that are erected along the periphery of the bed portion and surround the bed portion, and at least one of the bed rails has a posture in which the bed rail stands up and down. An open / close mechanism is provided that moves up and down while holding and opens and closes the side of the bed part ,
A lock mechanism for restraining the vertical movement of the bed fence and a release lever for releasing the locked state by the lock mechanism are provided, and the lock mechanism can be vertically rotated on the inner surface of the bed fence. The lock member includes a lock member, a lock member engaging portion that is fixed to the bed portion and engageable with the lock member, and a spring that urges the lock member in the lock direction, and the release lever includes the bed It is provided on the outer surface of the fence so as to be vertically rotatable, and the vertical rotation operation of the release lever when unlocking is transmitted to the lock member between the lock member and the release lever to lock the lock member. A connecting member that rotates vertically in the release direction is provided,
The opening / closing mechanism includes a first link member that connects the bed portion and the bed rail, and a second link member that connects the bed portion and the bed rail at a position below the first link member. A parallel link mechanism having
The first link member is supported on the back surface of the bed portion by a tension coil spring at an intermediate position in the length direction, and the tension coil spring is at an intermediate position between the closed position and the open position of the bed fence. An incubator characterized by being provided in a substantially horizontal state . The locking mechanism is provided on both sides of the bed fence,
The connecting member is constituted by a connecting rod, and a central portion in the length direction passes through a position between an axis that supports the release lever so as to be vertically rotatable and an operation end portion of the release lever, An end portion provided with an engaging recess that engages with the locking member engaging portion passes through the opposite end portion through a shaft that supports the locking member so as to be vertically rotatable. The incubator according to claim 1, wherein: The incubator according to claim 1 or 2, wherein a connecting portion of the first link member and the second link member to the bed portion is disposed at a position below the bed portion.

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