JP2015159944A - Jump-up preventive mechanism of floor part in hydraulic cylinder type supine table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the inconveniences that a floor part of a supine table composed so that it can go up/down/slant with a hydraulic cylinder can be lifted up directly by a nurse or the like and could jump up by external force such as someone's sitting on an end of the floor part.SOLUTION: The invented floor part jump-up preventive mechanism is provided with a first engaging member and a second engaging member which prevent relative rotation in an engaging state while a floor part 3 moves relatively above a hydraulic cylinder in a state horizontal to a hydraulic cylinder side support member 6h and a floor part side support member 9h supporting it in the floor part which can easily jump up. The first engaging member and the second engaging member can be composed of a shaft member 12 and a recess part 13 holding it or the like.

Description

  The present invention relates to a mechanism for preventing a floor from jumping up on a supine table such as a stretcher or a bed that can be lifted and lowered by a hydraulic cylinder.

  On a supine table such as a stretcher or bed, an elevating mechanism for adjusting the height of the floor, an extended posture that tilts the user's head side low (Trendeenberg), and a reverse that tilts the head side high As what is equipped with the inclination mechanism of the floor part for making it an extended attitude | position (reburstendrenenberg), as described in patent document 1, for example, the raising / lowering and inclination of a floor part are utilized using a link mechanism. In addition to this, as shown in Patent Document 2 and Patent Document 3, for example, as shown in Patent Document 2 and Patent Document 3, a floor portion is provided by a hydraulic cylinder that protrudes from the head side and the foot side, respectively. There is a configuration in which the floor side can be lifted and lowered with a simple configuration by supporting the head side and the foot side of the arm and extending and contracting the hydraulic cylinder.

  The present invention, like the latter, supports the head side and the foot side of the floor by hydraulic cylinders protruding from the head side and the foot side of the base, respectively, and elevating and lowering the floor by expanding and contracting these hydraulic cylinders. It is intended for a hydraulic cylinder type supine table that can be tilted.

  FIGS. 16 and 17 conceptually show the structure of the supine table having such a structure, and the supine table protrudes from locations corresponding to the head side h and the foot side f of the base 100 respectively. This is a configuration in which the head side h and the foot side f of the floor portion 102 are supported by the cylinders 101h and 101f. Specifically, the support member 103h for supporting the head side h of the floor portion 102 by the hydraulic cylinder 101h on the head side h supports the floor portion 102 so that the floor portion 102 can rotate in an inclined direction. The support member 103f for supporting the foot side f of the floor portion 102 by the hydraulic cylinder 101f on the foot side f enables the floor portion 102 to rotate in the tilt direction and allows the floor portion 102 to move in the longitudinal direction. In this way, the support member 104 is supported.

  In such a hydraulic cylinder type supine table, although not shown, an extension operation pedal for extending both hydraulic cylinders, and a foot side and a head for individually shortening each hydraulic cylinder are provided. The floor portion is moved up and down and inclined by a shortening operation pedal of the hydraulic cylinder on the side.

  That is, for example, by operating the extension operation pedal, both the foot side and the head side hydraulic cylinders can be extended to raise the head side and the foot side of the floor at the same time. By operating simultaneously, both hydraulic cylinders can be shortened and the head side and the foot side of the floor can be lowered simultaneously. Further, by operating only the shortening operation pedal on either the head side or the foot side, only the corresponding hydraulic cylinder can be shortened, and only the head side or the foot side of the floor can be lowered and inclined.

  Each hydraulic cylinder maintains its length until the extension operation pedal and the shortening operation pedal are not operated, and thus can maintain the posture of the floor against the load.

  On the other hand, in such a supine table, there is a case where the floor portion needs to be immediately set to the extended posture or the reverse extended posture. In such a case, for example, as shown in FIG. 18, the nurse or the like directly lifts the floor 102 by hand without using the operation pedal, so that the floor 102 can be quickly extended or reversed. It is possible to be in the extended position. FIG. 18 shows an operation in which the nurse raises the foot side f of the floor 102 to the extended posture.

Japanese Patent No. 3035861 Special Table 2002-529115 Special table 2003-522602 gazette

  In the supine table as described above, each hydraulic cylinder can be freely operated by an external force in order to allow the nurse or the like to lift the floor directly and change the posture. It is configured.

  For this reason, for example, as shown in FIG. 16, when the floor 102 is horizontally supported at a low position, when a downward force is applied by sitting on the end of the floor 102 on the foot side f, etc. A moment with the support member 103f as a pivot point acts, and the floor part jumps up and tilts as shown in FIG. 17, which is dangerous.

As shown in FIGS. 16 and 17, the distance between the end of the floor 102 on the foot side f and the support member 103f on the foot is such that the end of the floor 102 on the head h and the support member 103h on the head side. If the distance is longer than the distance, the moment when a downward force is applied to the end of the foot side f of the floor portion 102 becomes larger due to the principle of leverage, and the above-described jumping is likely to occur.
Therefore, an object of the present invention is to solve such a problem and provide a mechanism for preventing the floor portion from jumping up in a hydraulic cylinder type supine table.

  In order to solve the above-described problems, in the present invention, in the supine platform that supports the head side and the foot side of the floor by the hydraulic cylinders protruding from the head side and the foot side of the base, the floor is supported by the hydraulic cylinder on one side. The first hydraulic cylinder side support member that supports the portion is rotatable in a direction in which the floor portion is inclined with respect to the first floor portion side support member provided on the floor portion, and the hydraulic cylinder expands and contracts. The second hydraulic cylinder side support member that supports the floor portion by the other hydraulic cylinder and supports the second hydraulic cylinder side support member provided on the floor portion is configured such that the floor portion is supported movably in the direction. The first hydraulic cylinder side support member and the first floor side support member are supported in such a manner that they can rotate in an inclined direction and can move in the longitudinal direction of the floor portion. Thus, when it moves relatively upward with respect to the hydraulic cylinder, it becomes an engaged state, Suggest jump preventing mechanism of the floor in the hydraulic cylinder type supine stand provided with a respective first engagement member and the second engaging member pairs specific rotation is prevented.

  According to the present invention, in the above-described configuration, the first engagement member is a mechanism for preventing the floor portion from jumping up in the hydraulic cylinder type supine table in which the shaft member as the second engagement member is configured as a recess that engages from below. suggest.

  According to the present invention, in the above-described configuration, the first engagement member is a shaft member, and the second engagement member is a spring-up of the floor portion in the hydraulic cylinder type supine table configured as a recess that engages the shaft member from above. A prevention mechanism is proposed.

  According to the present invention, in the above-described configuration, the first hydraulic cylinder side support member proposes a mechanism for preventing the floor portion from jumping up in the hydraulic cylinder type supine table in which the first hydraulic cylinder side support member corresponds to the floor portion side having a short distance from the end portion of the floor portion. To do. For example, the first hydraulic cylinder side support member corresponds to the head side of the floor portion, and the second hydraulic cylinder side support member corresponds to the foot side of the floor portion to prevent the floor portion from jumping up. Propose mechanism.

  In the present invention, a first hydraulic cylinder that supports a floor portion by a hydraulic cylinder on one side in a supine base that supports the head side and foot side of the floor portion by a hydraulic cylinder protruding from the head side and the foot side of the base. The side support member supports the first floor portion side support member provided on the floor portion so that the floor portion can rotate in the direction in which the floor portion tilts and can move in the direction in which the hydraulic cylinder expands and contracts. The second hydraulic cylinder side support member that supports the floor portion by the other hydraulic cylinder is rotatable in a direction in which the floor portion is inclined with respect to the second floor portion side support member provided on the floor portion, In addition, since it is supported so as to be movable in the longitudinal direction of the floor, the floor can be raised and lowered in the horizontal state, and the head side or foot side by extending and shortening the hydraulic cylinders on the head side and the foot side. The floor can be inclined with the bottom side facing down.

  On the other hand, the hydraulic cylinders on the head side and the foot side need to be operated with a pedal or the like for the movement in the shortening direction, but are configured so that the movement in the extending direction can be freely performed. The movement of changing the posture by directly lifting the can be performed.

  In a state where the floor is horizontally supported at a low position, a downward force is applied by sitting on the end of the floor on the side where the distance from the end to the hydraulic cylinder is long, and the greater the lever principle When the moment is applied, the other end side of the floor portion moves upward and tries to jump up.

  However, when the floor portion is raised, the first floor portion side support member and the second engagement member are raised together therewith and are engaged with the first engagement member of the first hydraulic cylinder side support member. Therefore, relative rotation is prevented. Therefore, only the floor portion on the first hydraulic cylinder side support member side is lifted and tilted is completely prevented, and jumping up can be prevented.

FIG. 1 is a side view showing an embodiment of a supine table according to the present invention in a state where a floor portion is supported at a low position. FIG. 2 is a side view showing an embodiment of a supine table according to the present invention in a state where the floor is supported at a high position. FIG. 3 is a side view showing an embodiment of the supine table according to the present invention in a state where the head side of the floor portion is inclined to be lowered. FIG. 4 is a side view showing an embodiment of a supine table according to the present invention in a state of a reverse extension posture in which the foot side of the floor portion is inclined low. FIG. 5 is a perspective view conceptually showing the main part of the supine table according to the present invention in a state where the floor is supported at a low position. FIG. 6 is a perspective view conceptually showing a main part of the supine table according to the present invention in an extended posture in which the head side of the floor is inclined low. FIG. 7 is a perspective view conceptually showing a main part of the supine table according to the present invention in a reverse extended posture in which the foot side of the floor portion is inclined low. FIG. 8 is a side view of the main part showing the configuration and operation of the main part of the main part of the supine table according to the present invention. FIG. 9: is a principal part side view which shows the structure and operation | movement of 1st Embodiment of the member of the principal part of the supine stand based on this invention in another situation. FIG. 10 is a main part side view showing the configuration and operation of the first embodiment of the main part of the supine table according to the present invention in still another aspect. FIG. 11: is a principal part side view which shows the structure and operation | movement of 1st Embodiment of the member of the principal part of the supine stand based on this invention in another situation. FIG. 12 is a side view of the main part showing the configuration and operation of the second embodiment of the main part of the supine table according to the present invention. FIG. 13: is a principal part side view which shows the structure and operation | movement of 2nd Embodiment of the member of the principal part of the supine stand based on this invention in another situation. FIG. 14 is a main part side view showing the configuration and operation of the second embodiment of the main part of the supine table according to the present invention in still another aspect. FIG. 15: is a principal part side view which shows the structure and operation | movement of 2nd Embodiment of the member of the principal part of the supine stand based on this invention in another situation. It is a perspective view which shows notionally the structure and operation | movement of a prior art example of a hydraulic cylinder type supine stand. It is a perspective view which shows notionally the structure and operation | movement of a prior art example of a hydraulic cylinder type supine stand in another situation. It is a side view which shows notionally the operation example of a hydraulic cylinder type supine stand.

Next, embodiments of the present invention will be described with reference to the accompanying drawings.
1 to 4, reference numeral 1 is a base configured to be movable by wheels, and hydraulic cylinders 2 h and 2 f are protruded from the head side h and the foot side f of the base 1, respectively. The floor 3 is supported so that it can be raised and lowered. The support mechanism of the floor 3 by the hydraulic cylinders 2h and 2f will be described later.

  The hydraulic cylinder type supine platform includes an extension operation pedal 4 for extending both hydraulic cylinders 2h and 2f, and a foot side and a head side for individually shortening each hydraulic cylinder 2h and 2f. The floor is raised and lowered by the shortening operation pedals 5h and 5f of the hydraulic cylinders 2h and 2f.

  The respective hydraulic cylinders 2h and 2f maintain their lengths so long as the extension operation pedal 4 and the shortening operation pedals 5h and 5f are not operated, and thus maintain the posture of the floor 3 against the load. be able to. The hydraulic cylinders 2h and 2f can be extended by lifting the floor 3 without operating the extension operation pedal 4.

  The extension operation pedal 4 is configured to apply a hydraulic pressure to the hydraulic cylinders 2h and 2f by a push-down operation to extend the hydraulic cylinder 2h and return upward by a return spring so that the next push-down operation can be continuously performed.

  In such a configuration, the extension operation pedal 4 is operated to extend both the foot-side and head-side hydraulic cylinders 2h, 2f to the state shown in FIG. 1 and the foot side f can be raised at the same time, and by operating both the shortening operation pedals 5h and 5f at the same time, both the hydraulic cylinders 2h and 2f can be shortened and the state shown in FIG. it can. Further, by operating only the shortening operation pedals 5h, 5f on either the head side or the foot side while the floor 3 is supported at a high position as shown in FIG. 2, the corresponding hydraulic cylinders 2h, Only the head side h or the foot side f of the floor 3 can be lowered and inclined by shortening only 2f. That is, it can be inclined to the extended posture shown in FIG. 3 or the reverse extended posture shown in FIG.

  Next, a first embodiment of the support mechanism for the floor portion 3 by the hydraulic cylinders 2h and 2f will be described with reference to FIGS. In the figure, the same components as those in FIGS. 1 to 4 are denoted by the same reference numerals, and redundant description is omitted.

  In the figure, reference numerals 6h and 6f denote first and second hydraulic cylinder side support members for supporting the floor portion 3 by the respective hydraulic cylinders 2h and 2f, and these first and second hydraulic cylinder side members. The support members 6h and 6f are composed of horizontal bars 7h and 7f fixed to the upper portions of the hydraulic cylinders 2h and 2f, and end members 8h and 8f provided at both ends thereof, and the respective end members 8h and 8f are It is supported by first and second floor side support members 9h and 9f provided on the head side and the foot side of the floor part 3.

  The end member 8h of the first hydraulic cylinder side support member 6h has a plate-like configuration projecting downward at the end of the horizontal bar, and this end member 8h is a length formed on the first floor side support member 9h. The shaft member 11 engaged with the hole 10 can be rotated, and can be moved along the long hole 10. The first floor side support member 9h is provided with a shaft member 12 projecting below the long hole 10, and a concave portion 13 that can be clamped by engaging the shaft member 12 is provided in the end member 8h. Yes. With such a configuration, the first hydraulic cylinder side support member 6h can rotate in a direction in which the floor portion 3 is inclined with respect to the first floor portion side support member 9h provided on the floor portion 3, and The hydraulic cylinder 2h is supported so as to be movable in the extending and contracting direction.

  On the other hand, the end member 8f of the second hydraulic cylinder side support member 6f has a slider-like configuration that engages with a second floor side support member 9f formed as a guide member. The hydraulic cylinder side support member 6f of No. 2 can rotate in a direction in which the floor portion 3 is inclined with respect to the second floor portion side support member 9f provided on the floor portion 3, and the longitudinal direction of the floor portion 3 Is supported so as to be movable.

  With the above configuration, as described above, the first hydraulic cylinder-side support member 6h rotates in the direction in which the floor 3 is inclined with respect to the first floor-side support member 9h provided on the floor 3. The second hydraulic cylinder side support member 6f is supported with respect to the second floor portion side support member 9f provided on the floor portion 3, and is supported so as to be movable in the direction in which the hydraulic cylinder 2h expands and contracts. Since the floor portion 3 can be rotated in the tilting direction and supported so as to be movable in the longitudinal direction of the floor portion 3, the extending and shortening operations of the hydraulic cylinders 2h and 2f on the head side h and the foot side f can be performed. By using an operation pedal mechanism that is not shown in the figure, as shown in FIGS. 5 to 7, the floor portion is raised and lowered in the horizontal state, and the floor portion with the head side or the foot side as the lower side is shown. Tilt can be done. In the state where the floor 3 is supported by the first and second hydraulic cylinder side support members 6h and 6f, the shaft member 11 provided on the end member 8h is provided in the first hydraulic cylinder side support member 6h. The shaft member 11 is supported so as to be rotatable with the shaft member 11 as a fulcrum in contact with the upper end of the long hole 10 provided in the first floor side support member 9h.

  Here, in the state where the floor 3 is horizontally supported at a low position as shown in FIG. 5, the end of the floor on the side where the distance from the end to the hydraulic cylinder is long, in this case, the floor When a large moment is applied according to the lever principle by applying a downward force, such as by sitting on the end of the foot side f of 3, the other end side of the floor part 3, that is, the head side h is upward. Go to and try to jump up.

  However, as shown in FIG. 11, when the floor 3 is raised, the first floor-side support member 9h and the shaft member 12 as the second engaging member are raised together with the first hydraulic cylinder. The shaft member 11 that is engaged with the recess 13 as the first engagement member provided on the end member 8 h of the side support member 6 h and is engaged with the elongated hole 10, and the shaft that is engaged with the recess 13 Since the member 12 is supported at two points, relative rotation between the end member 8h of the first hydraulic cylinder side support member 6h and the first floor side support member 9h is prevented. Therefore, only the floor portion 3 on the first hydraulic cylinder side support member 6h side is raised and tilted is completely prevented, and the jumping up can be prevented.

  Next, FIGS. 12 to 15 show a second embodiment of the support mechanism for the floor portion 3 by the hydraulic cylinders 2h and 2f. In the first embodiment described above, the first engaging member is configured as the concave portion 13 that engages the shaft member 12 as the second engaging member from below, whereas the second engaging member is the second engaging member. In this embodiment, the first engagement member is the shaft member 14, and the second engagement member is configured as a recess 15 that engages the shaft member 14 from above. Since the other components are the same as those in the first embodiment, the corresponding components are denoted by the same reference numerals, and redundant description is omitted.

  As shown in the first and second embodiments described above, in the present invention, the first engagement member provided on the first cylinder side support member and the second provided on the first floor side support member. The engaging member is appropriate as long as the floor portion is in a horizontal state and is engaged when the floor portion moves relatively upward with respect to the hydraulic cylinder to prevent relative rotation. .

  It is possible to prevent the floor portion from jumping up in the supine table configured to be able to be tilted up and down by the hydraulic cylinder, and there is an effect that the safety can be improved by using it for a stretcher or a bed.

DESCRIPTION OF SYMBOLS 1 Base 2h, 2f Hydraulic cylinder 3 Floor part 4 Extension operation pedal 5h, 5f Shortening operation pedal 6h 1st hydraulic cylinder side support member 6f 2nd hydraulic cylinder side support member 7h, 7f Horizontal bar 8h, 8f End member 9h 1st floor side support member 9f 2nd floor side support member 10 Slots 11, 12, 14 Shaft members 13, 15 Recess 100 Base 101h, 101f Hydraulic cylinder 102 Floor portions 103h, 103f Support member 104 Support member

Claims (5)

In the supine stand that supports the head side and the foot side of the floor portion by the hydraulic cylinder protruding from the head side and the foot side of the base, the first hydraulic cylinder side support member that supports the floor portion by the hydraulic cylinder on one side is The first floor side support member provided on the floor is supported so as to be rotatable in the direction in which the floor is inclined and movable in the direction in which the hydraulic cylinder expands and contracts, and the hydraulic pressure on the other side. The second hydraulic cylinder side support member that supports the floor portion by the cylinder is rotatable in a direction in which the floor portion is inclined with respect to the second floor portion side support member provided on the floor portion, and the floor portion The first hydraulic cylinder side support member and the first floor side support member are moved upward relative to the hydraulic cylinder in a horizontal state. First engaging members that are engaged and are prevented from rotating relative to each other. Jump preventing mechanism of the floor in the hydraulic cylinder type supine stand, characterized in that a second engagement member. The first engagement member is configured as a concave portion that engages a shaft member as a second engagement member from below, and prevents the floor portion from jumping up in the hydraulic cylinder type supine table according to claim 1. mechanism. 2. The floor portion of the hydraulic cylinder type supine table according to claim 1, wherein the first engagement member is a shaft member, and the second engagement member is configured as a recess that engages the shaft member from above. Bounce prevention mechanism. The mechanism according to claim 1, wherein the first hydraulic cylinder side support member is made to correspond to the floor side having a short distance from the end of the floor portion. . 5. The hydraulic cylinder type according to claim 4, wherein the first hydraulic cylinder side support member is made to correspond to the head side of the floor portion, and the second hydraulic cylinder side support member is made to correspond to the foot side of the floor portion. A mechanism to prevent the floor from jumping on the supine table.

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