JPH0632647B2 - Bed rest lifting device for incubator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for raising and lowering a bed rest of an infant incubator.

[0002]

2. Description of the Related Art The bed rest of an incubator is supported by a pair of lifting devices that are spaced in the longitudinal direction of the bed, and the baby's head is lifted by both lifting devices when the baby is laid on the bed. The side of the foot and the side of the foot are raised and lowered separately.

As one of the lifting devices of this type, a pair of links combined in an X shape, a slider slidable toward and away from one end of one of the links, and the slider are moved. There is one using a screw rod (JP-A-2-198555). One of the links is connected to the base at one end of the slider so that it cannot be displaced in the moving direction of the slider and can be rotated angularly. There is. The bed platform is supported at the platform support positions at the other ends of both links on the lower side of both widthwise edges of the bed platform.
In addition, the bed platform is raised when one end of the other link approaches the one end of the one link, and is lowered when one end of the other link is separated from the one end of the one link.

In the conventional lifting device, one end of one of the links is connected to the base so as not to be displaced in the moving direction of the slider, so that one end of the other link is connected to the base to raise the bed rest. When approaching to one end, the platform support position of one link is displaced to the platform support position side of the other link, and the platform support position of the other link in the width direction of the bed rest is not displaced. When the bed is supported by such an elevating device, the bed supporting positions of both links are biased toward one widthwise edge of the bed when the bed is raised to the maximum height. In such a state, since the support of the bed is unstable, a slight movement of the baby on the bed causes the bed to tilt.

When the bed is thus tilted, not only the baby on the bed is surprised but also the position of the baby with respect to the bed changes, so that a part of the baby's body, for example, a limb surrounds the bed. There is a risk of being caught in the hood, the needle for injecting a drug being detached from the baby, and the head of the inspection device being detached from the baby. Therefore, in the conventional lifting device, the range in which the bed rest can be lifted is limited.

In an incubator, a hose for injecting a drug,
Electric wires for inspection may be guided to the infant using the lower side of the bed. In such a case, in an elevating device in which a pair of links are combined in an X shape, when lowering the elevating device, a drug injecting hose, an electric wire for inspection, etc. are provided between the both sides of the elevating device. There was a risk of slipping in and damaging them.

[0007]

DISCLOSURE OF THE INVENTION An object of the present invention is to make it possible to always stably support a bed, even if the range in which the bed can be raised and lowered is increased, and a hose for injecting a medicine,
The purpose is to prevent damage to inspection wires.

[0008]

SOLUTION, ACTION, EFFECT The bed rest lifting device of the present invention is
A base, a rod rotatably supported on the base about an axis extending in the horizontal direction and having first and second threaded portions opposite to each other, and individually threaded on the first and second threaded portions. Combined first and second sliders that move in opposite directions as the rod rotates,
The base is rotatably supported at an angle about an axis extending in a direction intersecting the axis of the rod, and
And a first arm and a second arm that are individually engaged with the second slider and that rotate in opposite directions with the movement of the slider.

The bed support is so constructed that the support positions of both arms are in either the width direction or the longitudinal direction of the bed support.
Supported by both arms. When the rod is rotated to one side,
Both sliders are moved in opposite directions, whereby both arms are angularly rotated in opposite directions to raise the bed rest. On the other hand, when the rod is rotated to the other side, both sliders are moved in the directions away from each other, whereby both arms are angularly rotated in the opposite directions to lower the bed rest. Along with the angular rotation of both arms, the base support positions of both arms are displaced toward each other. At this time, the displacement of the platform support positions of both arms is substantially symmetrical with respect to the center in the width direction or the longitudinal direction of the bed platform depending on the support state of the bed platform on both arms.

According to the present invention, since the platform supporting positions of both arms are displaced in the opposite directions with the rotation of the rod, the bed platform can always be supported stably, and the range in which the bed platform can be raised and lowered. Can be large. Also, since it is not necessary to cross both arms, even if a hose for drug injection, an electric wire for inspection, etc. are passed under the bed,
There is no risk of pinching them between the arms and damaging them.

Further included is a pedestal for receiving a bed rest disposed on the incubator, the pedestal being connected to the first and second arms, thereby the pedestal being in the first and second arms.
It is preferable to raise and lower by rotating the arm at an angle. As a result, the mechanical strength of the bed can be reduced as compared with the case where the bed is directly supported by both arms. Further, it is preferable to include a connecting piece that connects one of the first and second arms and the pedestal to position the pedestal in the axial direction of the rod with respect to the base. As a result, the bed rest is prevented from shifting in the displacement direction of the platform supporting positions of both arms with respect to the lifting device as the lifting device moves up and down. An elongated hole extending in the axial direction of the rod may be formed in one of the pedestal support and the both arms, and a pin slidably fitted in the elongated hole may be provided in the other. Further, it is preferable that the base is removably attached to the incubator with a plurality of screws. As a result, the lifting device as a whole can be removed from the incubator, and the incubator and the lifting device can be cleaned, which facilitates the cleaning work.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, an incubator 10 includes a carrier 12 acting as a support and a box 14 disposed on the carrier and accommodating electrical equipment and circuits.
A transparent hood 16 placed on the box to protect the infant, a bed rest 18 placed in the hood, and a hood 18 for supporting the bed rest at its longitudinal ends. A pair of bed rest lifting devices 20 are included.

The hood 16 has a treatment window 22 for treating an infant on the bed rest 18, and a maintenance window 24 for putting a hand in the hood 16. The treatment window 22 is releasably closed by a door 26, and the door 26 is connected to the main body of the hood 16 by a hinge 28. The care window 24 is closed by a cover 30 so that the caregiver's hand can be taken in and out.

As shown in FIGS. 2 and 3, each bed rest lifting device 20 includes a flat base 34 which is removably attached to the incubator by a plurality of screws 32.

A pair of first brackets 36 are mounted on the base 34 at intervals in the first direction extending in the horizontal direction, and a pair of second brackets 3 are provided.
8 are attached at intervals in a second direction which is orthogonal to the first direction and extends in the horizontal direction.

The first bracket 36 rotatably supports the rod 40 extending in the first direction at the tip thereof. The rod 40 has a pair of screw portions 42 and 44 opposite to each other at the tip of the rod 40 between the first brackets 36, and a crank portion 46 at the rear end.

Sliders 48 and 50, which move in opposite directions as the rod 40 rotates, are screwed into the screw portions 42 and 44, respectively. The sliders 48 and 50 include arms 52 and 54, respectively.
Are pivotally connected by pins 56 and 58.

The arms 52 and 54 are pivotally supported on the second bracket 38 at one end by pins 60 and 62, respectively, and are connected to the pedestal 68 at the other ends by pins 64 and 66, respectively. ing.

Pins 64 and 66 are fixed to arms 52 and 54, respectively, and are received in slots 70 and 72 formed in pedestal 68. The base 68 and the elongated holes 70 and 72 extend in the longitudinal direction of the rod 40. The base 68 is connected to the intermediate portion of the one arm 52 by a connecting piece 74.

The bed support 18 is received by the receiving portion 76 of the support 68 at the widthwise or longitudinal end thereof. The load applied from the bed rest 18 to the pedestal support 68 is divided into the arms 52 and 54 by the pins 64 and 66, and the load is further transmitted from the arms 52 and 54 to the base 34 via the pins 60 and 62 and the bracket 38. It

The pins 64 and 66 may be fixed to the pedestal support 68, and the elongated holes 70 and 72 may be formed in the arms 52 and 54, respectively. The pedestal support 68 may be connected to the intermediate portion of the other arm 54 by another connecting piece of the same type as the connecting piece 74.

As shown in FIG. 1, the bed rest lifting device 20.
Is the hood 1 except the crank portion 46 of the rod 40.
6 is detachably attached to the incubator 10.

When the rod 40 is rotated to one side by utilizing the crank portion 46, the sliders 48 and 50 are moved toward each other, whereby the arms 52 and 54 are moved to the pins 64 and 6.
The parts on the side of 6 are offset and angularly rotated in opposite directions. As a result, the bed rest 18 is raised. A state in which the sliders 48 and 50 are closest to each other is shown in a simplified manner in FIG.

On the other hand, when the rod 40 is rotated to the other side, the sliders 48 and 50 are moved in the directions away from each other,
As a result, the arms 52 and 54 are angularly rotated in directions opposite to each other and away from each other on the side of the pins 64 and 66. As a result, the bed rest 18 is lowered. Slider 4
A state in which 8 and 50 are separated most is shown in a simplified manner in FIG.

With the angular rotation of arms 52 and 54, pins 64 and 66 are displaced longitudinally within slots 70 and 72, respectively. However, the base 34 and the bracket 3 in the longitudinal direction of the base 68 are
The positional relationship between 6, 38 and the pedestal support 68, in other words, the positional relationship between the bed rest 18 and the lifting device 20, is substantially constant by the connecting piece 74 connecting the pedestal support 68 and the one arm 52. Maintained. Therefore, the bed platform 18 is prevented from shifting relative to the lifting device 20 in the displacement direction of the pins 64, 66.

Since the directions of angular rotation of the arms 52 and 54 are opposite to each other, the displacement directions of the pins 64 and 66 associated with the angular rotation of the arms 52 and 54 are also opposite. For this reason, the positions of the pins 64 and 66 in the longitudinal direction of the pedestal 68 are always substantially symmetrical with respect to the center of the pedestal 68 in the longitudinal direction. 18 is always supported stably.

According to the bed rest raising / lowering device 20, the platform support 68 is provided.
The bed 52 is supported by the arms 52 and 54 via the arm, so that the mechanical strength of the bed 18 can be reduced as compared with the case where the bed 18 is directly supported by the arms 52 and 54. However, the bed rest 18 may be directly supported by the arms 52 and 54.

Further, according to the bed rest lifting device 20, the base 34 is detachably attached to the incubator 10 by the plurality of screws 32. Therefore, the lifting device 20 as a whole is removed from the incubator 10 and the incubator 10 and the lifting device 20. Can be cleaned, and their cleaning work is facilitated.

Further, according to the bed rest lifting device 20, it is not necessary to intersect the arms 52 and 54. Therefore, even if a hose for drug injection, an electric wire for inspection, etc. are passed under the bed rest, There is no danger of the squeezing between the arms 52 and 54, and they are not damaged.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an incubator in which a bed rest lifting device of the present invention is arranged.

FIG. 2 is a perspective view showing an embodiment of a bed rest lifting device of the present invention.

FIG. 3 is an enlarged view showing a drive portion of an arm in the bed rest lifting device shown in FIG.

FIG. 4 is a schematic view of a bed support lifting device showing a state in which a base support is most raised.

FIG. 5 is a schematic view of the bed rest raising / lowering device showing a state where the pedestal support is most lowered.

[Explanation of symbols]

 10 incubator 18 bed rest 20 bed rest lifting device 32 screw 34 base 40 rod 42, 44 rod thread 48, 50 slider 52, 54 arm 64, 66 pin 68 stand 70, 72 long hole 74 connecting piece

Claims (5)

[Claims] 1. A base, a rod rotatably supported on the base about an axis extending in the horizontal direction, and having first and second screw portions opposed to each other, and the first and second screws. First and second members individually screwed to the member and moved in opposite directions as the rod rotates.
Of the slider, and the movement of the slider, which is rotatably supported on the base angularly about an axis extending in a direction intersecting the axis of the rod and individually engaged with the first and second sliders. A bed rest raising and lowering device for an incubator, comprising: a first arm and a second arm that rotate in opposite directions to each other. 2. A pedestal for receiving a bed rest disposed on the incubator, the pedestal being coupled to the first and second arms and angular for the first and second arms. The bed rest lifting device according to claim 1, which is lifted and lowered by rotation. 3. The method according to claim 2, further comprising a connecting piece that connects one of the first and second arms and the pedestal to position the pedestal in the axial direction of the rod with respect to the base. The bed rest lifting device described in. 4. The pedestal support and one of the both arms have an elongated hole extending in the axial direction of the rod, and the other of the pedestal support and the two arms is a pin slidably fitted in the elongated hole. The bed rest lifting device according to claim 2, further comprising: 5. The bed rest lifting device according to claim 1, further comprising a plurality of screws for removably attaching the base to the incubator.