JP2020124324A - Handrail and bed - Google Patents

Abstract

To provide a handrail capable of preventing a user who is mounted on a mounting base from easily operating from the inside, and to provide a bed.SOLUTION: A handrail 10 comprises: a plate-like handrail body part 11 arranged at an edge of a bed; a shaft part 15 provided in the handrail body part 11; a fixed support part 18 through which the shaft part 15 is passed; a coil spring 19 through which the shaft part 15 is passed; an operation part 20 inserted into the shaft part 15; and a rotation restricting part 32 for restricting the operation of the operation part 20. The handrail is changed to a release state or a regulation state due to the push-pull of the operation part 20, and is changed to a usage state or a non-usage state due to the rotation.SELECTED DRAWING: Figure 3

Description

The present invention relates to a handrail and a bed having the handrail.

Conventionally, for example, medical and nursing beds, stretchers, wheelchairs, etc. (hereinafter referred to as "beds and the like") are provided with handrails. When using a bed or the like, the handrail is used as a fence that the user holds by his/her hand to support his/her body and that prevents the user from falling during use. For example, in the bed assistance bar described in Patent Document 1 below, a part of the fence attached to the edge of the bed opens laterally like a door and can be grasped by the user as a handrail. .. However, it is difficult to open and close the fence when a medical device or the like is placed close to the side of the bed or when the room is small.

Therefore, there are handrails that rotate around the width direction of the bed. With this configuration, a mutual change between a state where the handrail is used and a state where the handrail is not used can be realized in a space that does not project to the outside.

JP, 2016-77642, A

However, the handrail itself is responsible for the operation for changing the handrail between the states of use and non-use. That is, when the handrail itself is operated, it changes to each state of use and non-use, so that the user can operate the handrail from the inside while lying on the bed or the like. There is a case where the state of sliding changes unintentionally and the user falls.

The present invention has been proposed in view of the above circumstances. That is, it is an object of the present invention to provide a handrail and a bed that can prevent a user placed on a mounting table from easily operating from the inside.

In order to achieve the above object, the handrail according to the present invention has a handrail main body portion arranged at an edge of a mounting table on which a user is mounted, and a rotating shaft having the width direction of the mounting table as an axis. A shaft portion provided in the handrail main body portion, and the handrail main body portion is rotated together with the shaft portion by being inserted into the shaft portion and rotating, and the handrail main body portion is mounted on the mounting table. The handrail main body is provided with an operating state that is projected above the surface, or the handrail main body is placed below the placement surface and is changed to an unused state.

Furthermore, the handrail according to the present invention can be changed to the non-use state by pulling the operating portion in the direction away from the mounting table with respect to the handrail main body portion in the use state. In this released state, the operation portion is pushed toward the handrail main body portion toward the mounting table to prevent the operation portion from being changed to the unused state. It is characterized in that

Furthermore, the handrail according to the present invention can be changed to the use state by pulling the operation portion together with the handrail main body portion in the direction away from the mounting table in the unused state. In the released state, in this released state, the operation portion is pushed toward the mounting table together with the handrail main body portion, and a restricted state in which the operating state cannot be changed is obtained. Characterize.

Further, the handrail according to the present invention is characterized in that it has a movement restricting portion for restricting movement of the handrail main body in a direction away from the mounting table in the use state.

Further, in the handrail according to the present invention, the operation portion has a grip portion arranged outside the mounting table with respect to the handrail main body portion, and the grip portion is in the width direction of the mounting table. It is characterized in that it is accommodated within the range of the thickness of the handrail main body.

Further, the handrail according to the present invention is characterized in that, in a state where the mounting table is viewed from the width direction, the handrail main body portion is a plate shape wider than the surface of the operation portion.

Further, in the handrail according to the present invention, the grip portion is long in the width direction of the handrail main body, and the orientation of the grip portion due to rotation of the operation portion and the width of the handrail main body. The direction of the direction is the same in the use state, the non-use state, and the process of changing between the use state and the non-use state.

Further, in the handrail according to the present invention, a long hole is formed in the shaft portion, and the operation portion has a protrusion protruding in a direction intersecting with the shaft portion and passing through the long hole. And a rotation restricting portion configured to restrict rotation of the operation portion, the rotation restricting portion including a protrusion and a regulating main body having a groove into which the protrusion fits.

A bed according to the present invention has the above-mentioned handrail.

A handrail according to the present invention has a handrail main body portion arranged at an edge of a mounting table on which a user rests, and a rotation shaft having a width direction of the mounting table as an axis, and a shaft provided in the handrail main body portion. Part, and the handrail main body is rotated together with the shaft by rotating the handrail main body together with the shaft, so that the handrail main body projects above the mounting surface of the mounting table, or the handrail main body. And a manipulation portion that is placed below the mounting surface and that changes into an unused state. That is, the handrail main body part and the operation part are composed of separate members, and even if external force by the user is applied to the handrail main body part, the handrail state changes unless the operation part is operated. do not do. Therefore, it is possible to prevent the user from easily operating from the inside.

In the use state, the handrail according to the present invention is in the released state in which the operating portion is pulled in the direction away from the mounting table with respect to the handrail main body portion and can be changed to the unused state. In the released state, the operation portion is pushed toward the mounting table with respect to the handrail main body portion, and a restricted state in which the operation portion cannot be changed to the unused state is obtained. That is, in the use state, the operation portion inserted into the shaft portion of the handrail main body portion is pushed or pulled with respect to the handrail main body portion to be in the released state or the regulated state. Therefore, the operation is easy and can be performed with one hand. Further, since the operating portion is on the shaft of the shaft portion, the operation is easy.

In the unused state, the handrail according to the present invention is in a released state in which the operating portion can be changed to the used state by being pulled together with the handrail main body portion in the direction away from the mounting table. In the above, the operation section is pushed toward the mounting table together with the handrail main body section, and a restricted state in which the operation state cannot be changed to the use state is brought about. That is, in the unused state, the operating portion inserted in the shaft portion of the handrail main body is pushed and pulled together with the handrail main body to be in the released state or the restricted state. Therefore, the operation is easy and can be performed with one hand.

The handrail according to the present invention has a movement restricting portion that restricts the handrail main body from moving in a direction away from the mounting table in a use state. With this configuration, even if the user pushes the handrail main body from the mounting table side in a direction away from the mounting table, the movement restricting unit restricts the movement of the handrail main body. .. The operation portion is inserted into the shaft portion of the handrail main body portion, but if the movement of the handrail main body portion is restricted, neither the shaft portion nor the operation portion moves. Therefore, it is possible to prevent the user from easily operating from the inside.

The handrail according to the present invention has a grip portion arranged outside the mounting table with respect to the main body of the handrail, and this grip portion is within the range of the thickness of the main body of the handrail in the width direction of the mounting table. It is contained. That is, the grip portion does not project from the handrail main body. Therefore, the gripping portion does not interfere with the object around the mounting table, and the object can be arranged close to the side part of the mounting table.

In the handrail according to the present invention, the handrail main body has a plate shape that is wider than the surface of the operation unit when the mounting table is viewed from the width direction. That is, since the handrail main body portion is wider than the operation portion, the operation portion is hidden by the handrail main body portion when viewed from the mounting table side. Then, the user cannot operate the operation unit outside the handrail main body from the mounting table side. Therefore, it is possible to prevent the user from easily operating from the inside.

In the handrail according to the present invention, the grip portion is long in the width direction of the handrail main body, and the orientation of the grip portion due to the rotation of the operating portion and the width direction of the handrail body are used. They are the same in the state, the unused state, and the process of changing between the used state and the unused state. That is, since the orientation of the grip portion and the widthwise orientation of the handrail main body portion are the same in each state and in the process of change, the operator performs the operation method and the process of change from the orientation of the grip portion. Is easy to think of. Therefore, the operation is easy.

In the handrail according to the present invention, a long hole is formed in the shaft portion, and the operating portion has a protrusion that protrudes in a direction intersecting with the shaft portion and is passed through the long hole. The rotation restricting part for restricting is composed of a protrusion and a restricting body part in which a groove into which the protrusion is fitted is formed. Therefore, since the rotation restricting portion restricts the rotation of the operating portion in the use state or the non-use state, the regulated state can be maintained in each state.

The bed according to the present invention has the above-mentioned handrail. Therefore, the bed has the above-mentioned effects.

1 shows a bed in which a handrail according to an embodiment of the present invention is in use, (a) is a perspective view, (b) is a plan view, (c) is a bottom view, and (d) is a front view. Is. 2 shows a bed in which the handrail according to the embodiment of the present invention is not used, (a) is a perspective view, (b) is a plan view, (c) is a bottom view, and (d) is a front surface. It is a figure. 3A and 3B show a handrail according to an embodiment of the present invention, which is in a used state and a regulated state. FIG. 3A is an outer perspective view seen from the outside, FIG. 3B is a plan view, and FIG. FIG. 3 is a perspective view of the inside viewed from above, FIG. FIG. 4 shows a handrail according to an embodiment of the present invention, which is in a used state and a released state, in which (a) is an outer perspective view, (b) is a plan view, and (c) is an inner perspective view. (d) is a bottom view, (e) is a II-II sectional view of (b). FIG. 5 is an outer perspective view showing the handrail according to the embodiment of the present invention, which is in a released state and in the middle of rotation. 6A and 6B show a handrail according to an embodiment of the present invention, which is in an unused state and a regulated state. FIG. 6A is an outer perspective view, FIG. 6B is a plan view, and FIG. 6C is an inner perspective view. (D) is a bottom view and (e) is a III-III sectional view of (b). 7A and 7B show a regulating main body portion of a handrail according to an embodiment of the present invention, where FIG. 7A is a perspective view, FIG. 7B is a plan view, FIG. 7C is a front view, and FIG. e) is a bottom view.

The following is a description of handrails and beds according to embodiments of the present invention. Note that the handrail is also used for stretchers, wheelchairs, etc. for medical and nursing care, for example.

1 and 2 show the appearance of the bed 1. 3 to 6 show the handrail 10. In the following description, the longitudinal direction of the bed 1 is the front-rear direction, the width direction of the bed 1 orthogonal to the front-rear direction is the lateral direction, and the height direction of the bed 1 is the up-down direction (see FIG. 1A). In particular, with the handrail 10 as a reference, the side of the bed 1 on which the table 2 is placed is the inside, and the side away from the table 2 is the outside.

As shown in FIGS. 1 and 2, the bed 1 is mounted on a mounting table 2 on which a user rests, a handrail 10 arranged on an edge of a side portion of the mounting table 2, and a back surface of the mounting table 2. It has a frame part 3 and a caster 4 attached to the frame part 3. The mounting table 2 has a rectangular flat plate shape, and two handrails 10 are arranged on both sides thereof. The handrail 10 has a plate-shaped handrail main body portion 11 arranged on the edge of the mounting table 2, and the handrail main body portion 11 projects above the mounting surface of the mounting base 2 in a use state (see FIG. 1)) and the handrail main body 11 is stored in a lower position than the mounting surface (see FIG. 2). In addition, the state changes to a release state that can change to a use state or a non-use state, and a regulation state that cannot change to a use state or a non-use state. The position and number of the handrails 10 are arbitrary.

As shown in FIGS. 3 to 6, the handrail 10 includes a handrail main body 11 that is held by the user or prevents the user from falling, and a shaft provided in the handrail main body 11. The portion 15, the fixed support portion 18 through which the shaft portion 15 is passed, the coil spring 19 as an elastic member through which the shaft portion 15 is passed, the operating portion 20 inserted into the shaft portion 15, and the operating portion 20. It has a rotation restricting portion 32 that restricts rotation.

The handrail main body 11 has a substantially circular or polygonal plate shape, and a grip hole 12 penetrating laterally is formed in the upper portion. A space 13 is formed by cutting out a part of the lower end of the handrail main body 11. In this space 13, a plate member 14 is attached and fixed to the inner side surface of the handrail main body 11. With this configuration, in the space portion 13, the inner side surface side of the handrail main body portion 11 is closed by the plate member 14, and a recess is formed on the outer side surface side of the handrail main body portion 11. The handrail main body 11 and the plate member 14 may be integrally molded.

The shaft portion 15 has a tubular shape that is long in the lateral direction (width direction of the mounting table 2 ), and has an outer end vertically attached to the inner surface of the plate member 14 so that the shaft hole penetrates the plate member 14. doing. With this configuration, the shaft portion 15 serves as a rotation shaft that rotates the handrail main body portion 11 with the lateral side as an axis. Further, elongated holes 16 are formed on the upper and lower surfaces of the inner end of the shaft portion 15, respectively. The long hole 16 has a long diameter oriented laterally (longitudinal direction of the shaft portion 15). An annular movement restricting portion 17 is attached to the outer peripheral surface of the inner end of the shaft portion 15.

The operation portion 20 has a rod-shaped operation shaft portion 21 having substantially the same length as the shaft portion 15, and a grip portion 22 vertically connected to the outer end of the operation shaft portion 21. The grip portion 22 is long in the front-rear direction (width direction of the handrail main body 11). The operation shaft portion 21 is formed with a protrusion 23 protruding in a direction orthogonal to the shaft portion 15. The operation shaft portion 21 is inserted into the shaft portion 15, and the protrusion 23 is passed through each elongated hole 16 of the shaft portion 15. The protrusion 23 and the regulation body portion 24 constitute a rotation regulation portion 32.

Here, the regulation body 24 will be described with reference to the drawings. FIG. 7 shows the regulation body 24.

As shown in FIG. 7, the regulation main body portion 24 includes a flat plate-shaped upper surface portion 25, a flat plate-shaped side surface portion 26 connected to an outer end of the upper surface portion 25 at a right angle, and the side surface portion 26. Has an upper surface portion 25 and a flat plate-shaped lower surface portion 27 facing each other at a right angle. In the lateral direction, the lower surface portion 27 is formed shorter than the upper surface portion 25, and the regulation main body portion 24 is formed with a groove portion 28 from the outer end to the inner end. More specifically, the upper surface portion 25 has a deep groove portion 30 formed from the outer end toward the inner end, and the lower surface portion 27 has a shallow groove portion 29 formed from the outer end toward the inner end. Has been done. The groove portion 28 is connected to the side surface portion 26.

As shown in FIG. 3, the shaft portion 15 into which the operation shaft portion 21 of the operation portion 20 is inserted is passed through the fixed support portion 18, the coil spring 19, and the side surface portion 26 of the regulation body portion 24, respectively. The protrusion 23 of the operation portion 20 is arranged in the shallow groove portion 29 of the lower surface portion 27 of the regulation body portion 24. The inner surface of the side surface portion 26 is provided with a restricting protrusion 31 protruding inward. The restriction protrusion 31 and the movement restriction portion 17 of the shaft portion 15 face each other. The grip portion 22 is arranged on the outer side of the mounting table 2 with respect to the handrail main body 11, and is accommodated within the range of the thickness of the handrail main body 11 on the side. In other words, the grip portion 22 does not project from the handrail main body portion 11 when viewed from the front-rear direction. Further, the handrail main body 11 is wider than the surface of the grip 22 when viewed from the outside. In other words, the grip 22 is housed in the space 13 of the handrail main body 11, and the handrail main body 11 is spread around the grip 22.

The shaft portion 15, the coil spring 19, the fixed support portion 18, and the rotation regulation portion 32 (the regulation body portion 24 and the protrusion 23 of the operation portion 20) are housed in the housing 5, and the housing 5 accommodates the fixed support portion 18 and the regulation portion. The body 24 is fixed. The housing 5 is fixed to the back surface of the mounting table 2 in the bed 1 (see FIG. 1).

The handrail 10 is configured as described above.

Next, the operation of the handrail 10 will be described. The handrail 10 is changed to the used state and the released state in FIG. 4 by pulling the operating portion 20 in the used state and the regulated state in FIG. 3. As the operation unit 20 is rotated as shown in FIG. 5, it is changed to the unused state and the regulated state in FIG.

More specifically, as shown in FIG. 3, in the use state and the regulated state, the projection 23 of the operation portion 20 fits into the shallow groove portion 29 of the regulation body portion 24, and the rotation of the operation portion 20 is regulated. ing. For this reason, the handrail main body portion 11 projects outward from the mounting table 2 and projects above the mounting surface of the mounting table 2 (see FIG. 1). The grip portion 22 of the operation portion 20 is accommodated in the space 13 of the handrail main body 11 and is aligned on the outer surface of the handrail main body 11. Therefore, the grip portion 22 does not project from the handrail main body portion 11. Further, the movement restricting portion 17 of the shaft portion 15 comes close to or comes into contact with the restricting protrusion 31 of the restricting body portion 24, and the handrail main body portion 11 is restricted from moving outward. The coil spring 19 is appropriately elongated.

As shown in FIG. 4, when the grip portion 22 is pulled outward against the elastic force of the coil spring 19, the operating portion 20 moves outward with respect to the shaft portion 15, and the operating portion 20 is moved. The protrusion 23 is separated from the groove 28 of the regulation body 24 and is disposed outside the side surface 26 of the regulation body 24, and is in the used state and the released state. When the operation unit 20 moves with respect to the shaft portion 15, the shaft portion 15 also slightly moves within a range of a so-called play amount.

As shown in FIG. 5, when the operating portion 20 is rotated, the handrail main body portion 11 is also rotated together with the shaft portion 15, and is in the unused state and the released state.

As shown in FIG. 2 and FIG. 6, the handrail main body 11 rotates 180 degrees and is arranged below the mounting surface of the mounting table 2 as compared with the use state. As shown in FIG. 6, when the grip portion 22 is pushed inward and the restoring force of the coil spring 19, the operating portion 20 moves inward together with the shaft portion 15, and the operating portion 20 moves. The protruding portion 23 is fitted into the deep groove portion 30 of the regulation body portion 24, and is in the unused state and the regulated state. Due to the difference between the shallow groove portion 29 and the deep groove portion 30, the position of the protruding portion 23 fitted to them is moved inward as compared with the state of use, so that the handrail main body portion 11 is placed on the back side of the mounting table 2. Housed in.

By the operation opposite to the above, the state of use and the state of regulation are restored. That is, in the unused state and the regulated state, when the grip portion 22 is pulled outward, the operation portion 20 moves outward together with the shaft portion 15, and the projection 23 of the operation portion 20 moves toward the regulation body portion 24. It is arranged outside the side surface portion 26 of the regulation main body portion 24 apart from the groove portion 28, and is in the unused state and the released state. In this state, by rotating the operation portion 20, the handrail main body portion 11 is also rotated together with the shaft portion 15, and is in a used state and a released state. In this state, when the grip portion 22 is pushed inward and also by the restoring force of the coil spring 19, the operating portion 20 moves inward with respect to the shaft portion 15, and the protrusion of the operating portion 20 is pushed. 23 is fitted in the shallow groove portion 28 of the regulation main body portion 24, and is in a used state and a regulated state. When the operation unit 20 moves with respect to the shaft portion 15, the shaft portion 15 also slightly moves within a range of a so-called play amount.

In the use state shown in FIG. 3, the non-use state shown in FIG. 6, and the process of changing between the states shown in FIG. The direction of the width direction of the sliding main body 11 is the same. That is, since the protrusion 23 of the operation portion 20 is passed through the elongated hole 16 of the shaft portion 15 and the shaft portion 15 is fixed to the handrail main body portion 11, the rotation operation of the handrail main body portion 11 is prevented. , Follows the rotation operation of the operation unit 20. Therefore, if the grip portion 22 oriented in the front-back direction with respect to the bed 1 is rotated 90 degrees and oriented in the vertical direction, the handrail main body portion 11 is also rotated 90 degrees at the same time, and the grip portion 22 is rotated 90 degrees. If the handrail main body portion 11 is rotated again by 90 degrees and is turned back and forth, the handrail main body portion 11 is also rotated by 90 degrees at the same time. When viewed from the outer side, the relative positions of the grip portion 22 and the handrail main body portion 11 are always the same.

As described above, the handrail main body 11 operates. Next, the effect of this embodiment will be described.

As described above, in the handrail 10, the operation shaft portion 21 of the operation portion 20 is inserted into the shaft portion 15 vertically attached to the inner surface of the plate member 14 of the handrail main body portion 11, and the grip portion of the operation portion 20 is inserted. 22 is arranged outside the mounting table 2 with respect to the handrail main body 11. That is, the handrail main body 11 and the operating portion 20 are configured by separate members, and even if external force by the user is applied to the handrail main body 11, the operating state is not changed unless the operating portion 20 is operated.・The unused state does not change. Therefore, it is possible to prevent the user from easily operating from the inside.

Further, since the shaft portion 15 serves as a rotation shaft that rotates the handrail main body portion 11 about the side (the width direction of the mounting table 2) as an axis, the handrail main body portion 11 uses the shaft portion 15 as an axis. It rotates on the side surface of No. 2 and does not rotate about the vertical axis. Therefore, mutual changes in each state can be realized in a space that does not project to the outside, and the handrail main body 11 does not interfere with medical devices and the like around the bed 1 in the process of change.

In the use state of the handrail 10, when the grip portion 22 is pulled outward, the operating portion 20 moves outward with respect to the shaft portion 15, and the protrusion 23 of the operating portion 20 causes the restricting main body portion to move. It is arranged outside the side surface portion 26 of the regulation main body portion 24 apart from the groove portion 28 of 24, and is in the used state and the released state. In this state, when the gripping portion 22 is pushed inward and the restoring force of the coil spring 19, the operating portion 20 moves inward with respect to the shaft portion 15, and the protrusion 23 is shallow. It fits in the groove portion 28, and is in a used state and a regulated state. That is, in the use state, the operation shaft portion 21 of the operation portion 20 inserted into the shaft portion 15 is pushed or pulled with respect to the handrail main body portion 11 to be in the released state or the regulated state. Therefore, the operation is easy and can be performed with one hand. Further, since the operation unit 20 is on the shaft of the shaft unit 15, the operation is easy.

Similarly, in the non-use state, when the grip portion 22 is pushed inward and is pushed by the restoring force of the coil spring 19, the operation portion 20 moves inward together with the shaft portion 15, and the operation portion 20 moves. The protruding portion 23 is fitted into the deep groove portion 30 of the regulation body portion 24, and is in the unused state and the regulation state. In this state, when the grip portion 22 is pulled outward, the operation portion 20 moves outward together with the shaft portion 15, and the protrusion 23 moves away from the groove portion 28 and the side surface portion 26 of the regulation main body portion 24. It is placed outside and is in the unused and released state. That is, in the unused state, the operation shaft portion 21 of the operation portion 20 inserted into the shaft portion 15 of the handrail main body portion 11 is pushed or pulled together with the handrail main body portion 11 to be in the released state or the regulated state. .. Therefore, the operation is easy and can be performed with one hand.

In the handrail 10, the movement restricting portion 17 is attached to the shaft portion 15, and the restricting protrusion 31 is attached to the side surface portion 26 of the restricting body portion 24. The movement restricting portion 17 and the restricting protrusion 31 face each other. The movement restricting portion 17 comes into contact with the restricting protrusion 31 to restrict the handrail main body 11 from moving outward. With this configuration, even if the user pushes the handrail main body 11 outward from the mounting table 2 side, the movement of the handrail main body 11 is restricted. While the operation shaft portion 21 of the operation portion 20 is inserted into the shaft portion 15, if the movement of the handrail main body portion 11 is restricted, neither the shaft portion 15 nor the operation portion 20 moves. Therefore, it is possible to prevent the handrail main body 11 from being unintentionally brought into the released state.

In the handrail 10, the grip portion 22 of the operation portion 21 is housed within the range of the thickness of the handrail main body portion 11 on the side, and when viewed from the front-back direction, the grip portion 22 is separated from the handrail main body portion 11. Not overhanging. Therefore, the gripping portion 22 does not interfere with the medical equipment or the like around the bed 1, and the medical equipment or the like can be arranged close to the side portion of the bed 1.

When viewed from the outside, the handrail 10 has a handrail main body 11 wider than the surface of the grip portion 22, the grip portion 22 being housed in the space 13 of the handrail main body 11, and surrounding the grip portion 22. The handrail main body 11 is widened. With this configuration, the operation unit 20 is hidden by the handrail main body 11 when viewed from the mounting table 2 side. Then, the user cannot operate the operation unit 20 located outside the handrail main body 11 from the mounting table 2 side. Therefore, it is possible to prevent the user from easily operating from the inside.

In the handrail 10, the orientation of the grip portion 22 due to the rotation of the operating portion 20 and the orientation of the handrail main body portion 11 in the width direction match in the use state, the non-use state, and the process of changing between the states. In the state of being viewed from the outside, the relative positions of the grip portion 22 and the handrail main body portion 11 are always the same. Therefore, the operator can easily contemplate the operation method and the changing process from the direction of the grip portion 22, and the operation is easy.

In the handrail 10, the operation shaft portion 21 of the operation portion 20 has a protruding portion 23 protruding in a direction orthogonal to the shaft portion 15 of the handrail main body portion 11, while the inner end of the shaft portion 15 is provided. The part has elongated holes 16 formed on the upper and lower surfaces thereof, respectively. The operation shaft portion 21 is inserted into the shaft portion 15, and the protrusion 23 is passed through each elongated hole 16 of the shaft portion 15. The protrusion 23 and the regulation body portion 24 constitute a rotation regulation portion 32. The protrusions 23 are arranged in the groove portions 28 of the upper and lower surface portions 25, 27 of the regulation body portion 24. In the regulated state, the protrusion 23 fits into the shallow groove portion 29 or the deep groove portion 30 of the regulation body portion 24, and the rotation of the operation portion 20 is regulated. Therefore, the regulated state can be maintained in the use state/non-use state.

Further, due to the difference between the shallow groove portion 29 and the deep groove portion 30, the position of the protruding portion 23 of the operation portion 20 fitted to these changes on the side of the mounting table 2. With this configuration, in the use state, the handrail main body portion 11 projects more than in the non-use state, and in the non-use state, the handrail main body portion 11 is closer to the inner side than in the use state. It is housed behind the. Therefore, the handrail main body portion 11 does not interfere with the medical equipment or the like around the bed 1, and the medical equipment or the like can be arranged close to the side portion of the bed 1.

Although the embodiments of the present invention have been described above in detail, the present invention is not limited to the above embodiments. The present invention can be modified in various ways without departing from the matters described in the claims.

1 bed 2 mounting table 3 frame part 4 caster 5 housing 10 handrail 11 handrail main body part 12 gripping hole 13 space 14 plate member 15 shaft part 16 long hole 17 movement restricting part 18 fixed support part 19 coil spring (elastic member)
20 operation part 21 operation shaft part 22 gripping part 23 projection part 24 regulation main body part 25 top surface part 26 side surface part 27 bottom surface part 28 groove part 29 shallow groove part 30 deep groove part 31 restriction protrusion 32 rotation restriction part

Claims (9)

A handrail main body portion arranged on the edge of the mounting table on which the user rests,
Having a rotating shaft whose axis is the width direction of the mounting table, a shaft portion provided in the handrail main body portion,
By being inserted into the shaft portion and rotating, the handrail main body portion is rotated together with the shaft portion,
A use state in which the handrail main body projects above the mounting surface of the mounting table, or an operating portion that changes the handrail main body to a non-use state in which the handrail main body is stored below the mounting surface; Has,
A handrail that is characterized by that. In the use state, the operation portion, in a direction away from the mounting table, by being pulled with respect to the handrail main body portion, a released state that can be changed to the non-use state,
In this release state, the operating portion is pushed toward the handrail main body portion toward the mounting table, thereby becoming a restricted state in which it is impossible to change to the unused state.
The handrail according to claim 1, characterized in that. In the non-use state, the operation portion is pulled in the direction away from the mounting table together with the handrail main body portion to be in a released state that can be changed to the use state,
In this release state, the operating portion is pushed toward the mounting table together with the handrail main body portion, and a restricted state in which the operating state cannot be changed is obtained.
The handrail according to claim 1 or 2, characterized in that. In the use state, the handrail main body portion has a movement restricting portion that restricts movement in a direction away from the mounting table,
The handrail according to any one of claims 1 to 3, which is characterized by the above. The operation portion has a grip portion arranged outside the placing table with respect to the handrail main body portion, and the grip portion is within a range of the thickness of the handrail main body portion in the width direction of the placing table. Be stored in
The handrail according to any one of claims 1 to 4, which is characterized by the above. In a state in which the mounting table is viewed from the width direction, the handrail main body portion is a plate shape wider than the surface of the operation portion,
The handrail according to any one of claims 1 to 5, which is characterized by the above. The grip portion is long in the width direction of the handrail main body,
The process of changing the orientation of the grip portion by the rotation of the operating portion and the orientation of the handrail body in the width direction, the use state, the non-use state, and the use state and the non-use state. , In agreement,
The handrail according to claim 5 or 6, characterized in that. A long hole is formed in the shaft portion,
The operation portion has a protrusion that protrudes in a direction intersecting the shaft portion and is passed through the elongated hole,
A rotation restricting portion configured to restrict rotation of the operation portion, the rotation restricting portion including a protrusion and a regulation main body portion having a groove portion into which the protrusion is fitted
The handrail according to any one of claims 1 to 7, which is characterized by the above. The handrail according to any one of claims 1 to 8,
Bed characterized by that.

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