JP6434891B2 - bed - Google Patents

Description

  The present invention relates to a bed, and more particularly to a bed having a reclining function.

  Conventionally, various beds having a reclining function as shown in the following Patent Document 1 have been proposed. This type of bed is, for example, an upper body side bed on which a user's upper body lies by the power of an actuator such as an electric motor. The part gets up diagonally. For this reason, the user can enjoy meals and reading while lying on the bed.

  In addition, in the bed of Patent Document 1 below, when the upper body side bed part rises, first, only the head side laying part rises in advance. In this state, since only the head mounting frame is lifted, the user can use the head mounting frame like a pillow. Next, when the power of the actuator is further applied, the head mounting portion is lifted from the back side placement portion, and the two are integrally tilted upward to take a reclining state. Such a reclining mechanism is also called “double function” in the industry.

JP 2014-100183 A

  By the way, in recent years, the demand for nursing care for beds having the reclining function as described above is increasing, and accordingly, opportunities for use as rentals and leases are increasing. A bed having a conventional reclining function includes an upper frame on which the upper body bed part is connected to the actuator and tilts, and an upper frame fixed on the tilt frame and forming a bed surface. It was firmly fixed by connecting means such as welding or bolts.

  On the other hand, when a bed is used by an unspecified number of users for rental or lease, after the rental company collects the bed, only the bed part of the bed, especially the upper frame that is close to the user's body, is used. There is a demand to remove and disinfect.

  For example, if the tilting frame and the upper frame are welded together, they cannot be disassembled in the first place, and the tilting frame is collectively required to be sterilized on a large scale. Further, when the tilting frame and the upper frame are coupled with bolts, it is necessary to remove all the plural bolts and disinfect only the upper frame, and then to bolt this to the tilting frame. . Therefore, the conventional reclining bed has a problem that it takes a lot of time to perform disinfection work when used by an unspecified number of users for rental or lease.

  The present invention has been devised in view of the above problems, and a main object of the present invention is to provide a bed with a reclining function in which a tilting frame and an upper frame can be easily detached and assembled.

  The present invention is arranged to be able to get up from a horizontal state to a reclining state with respect to the fixed frame by receiving a fixed frame installed on a floor surface, an actuator disposed on the fixed frame, and power of the actuator. A bed having an upper body couch portion, the upper body couch portion including a tilt frame coupled to the actuator and tilting; and an upper frame fixed on the tilt frame and forming a bed surface; The upper frame is fixed to the tilting frame by a detachable non-bolt type coupling means.

  In another aspect of the present invention, the coupling means may include a pin with a retaining function.

  In another aspect of the present invention, the upper frame is engaged with at least a part of the tilting frame tilted obliquely, and an engaging portion for supporting the weight of the upper frame on the tilting frame is provided. Can be prepared.

  In another aspect of the present invention, the upper frame includes a first frame located on the user's head side and a second frame coupled to the first frame so as to be relatively movable and located on the user's waist side. And a link mechanism that moves the first frame up and down relative to the second frame, and the tilt frame includes a part of the link mechanism in a state where the upper frame is fixed to the fixed frame. A pressing member that moves the first frame up and down by pressing may be provided.

  In another aspect of the present invention, the pushing member can tilt the tilting frame to the reclining state after the first frame is lifted from the second frame.

  According to the bed of the present invention, the upper body couch portion includes a tilt frame that is tilted by being connected to the actuator, and an upper frame that is fixed on the tilt frame and forms a bed surface, and the tilt frame of the upper frame. It is characterized in that it is fixed to a non-bolt type connecting means that is detachable. Therefore, according to the bed of the present invention, the tilting frame and the upper frame can be easily removed and assembled. For example, only the upper frame can be efficiently removed from the bed and sterilized.

It is a perspective view of the horizontal state of the bed concerning one embodiment of the present invention. It is a perspective view of the reclining state of the bed concerning one embodiment of the present invention. It is a principal part side view of an upper body side bed part. It is a principal part expansion perspective view of an upper body side bed part. It is the principal part expansion perspective view which looked at the upper body side bed part from the bottom face side. It is a side view of the upper frame of this embodiment. It is a perspective view showing an example of a pin with a retaining function. It is a side view of the lifted tilting frame and the upper frame held by it. It is a side view of a tilting frame and the upper frame held by it, and shows a horizontal state. It is a side view of a tilting frame and the upper frame held by it, and shows a state where the first frame is lifted.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a perspective view of the bed 1 of the present embodiment in a horizontal state, and FIG. 2 shows a perspective view (partially broken view) of the reclining state. Hereinafter, in the present specification, the bed longitudinal direction, the bed width direction, and the bed height direction mean the directions of x, y, and z shown in FIG. 1, respectively.

  As shown in FIG. 2, the bed 1 of this embodiment includes a fixed frame 2 installed on the floor, an actuator 3 disposed on the fixed frame 2, and the power of the actuator 3 to receive the fixed frame 2. The upper body couch 4 is arranged so as to be able to get up from the horizontal state to the reclining state. When the bed 1 of this embodiment is actually used, a mattress, a mattress or the like is further placed on the bed surface.

  FIG. 3 shows an enlarged exploded perspective view of the main part of the bed 1. As shown in FIG. 3, the fixed frame 2 is made of a metal frame material including, for example, a vertical frame 2A extending in the bed longitudinal direction, a horizontal frame 2B extending in the bed width direction, and the like. Legs 5 (see FIGS. 1 and 2) placed on the floor surface are provided at the four corners of the fixed frame 2. The fixed frame 2 can be implemented in various shapes according to the custom other than such a form.

  Returning to FIG. 3, the actuator 3 is constituted by, for example, an electric cylinder having an electric motor 3 </ b> A and a rod 3 </ b> B that expands or contracts by its rotational force. In the plan view of the bed, the longitudinal direction of the rod 3B is arranged in parallel with the longitudinal direction of the bed, for example. One end side of the actuator 3 is rotatably connected to the fixed frame 2 (for example, the horizontal frame 2B). The other end side of the actuator 3 is rotatably connected to the upper body couch portion 4 side in order to obtain a reclining state. The bed 1 is provided with an operation remote controller (not shown) for extending and retracting the rod 3B of the actuator 3 to switch the upper body couch 4 to a horizontal state or a reclining state.

  As is clear from FIG. 2, the upper body couch 4 has a size that occupies about half of the bed surface of the bed in the longitudinal direction of the bed, for example. Such an upper body couch 4 serves to stably support the upper body of the user. As shown in FIG. 3, the upper body couch portion includes, for example, a tilting frame 6 that is connected to the actuator 3 and tilts, and an upper frame 7 that is fixed on the tilting frame 6 and forms a bed surface. It is out.

  In FIG. 4, the upper frame 7 is omitted, but the reclining state of the tilting frame 6 is shown. As shown in FIGS. 3 and 4, the tilting frame 6 is, for example, a base shaft portion 9 extending in the bed width direction, a pair of arm portions 10 fixed to the base shaft portion 9, and the base shaft portion 9. And a pressing member 11 that is rotatably mounted.

  The base shaft portion 9 includes a shaft main body 9A extending along the bed width direction y, and a protrusion 9B protruding in the radial direction from the shaft main body 9A.

  For example, the shaft body 9A is supported by the fixed frame 2 at both ends thereof. In this embodiment, the shaft main body 9A is supported by the groove-type guide member 2G of the fixed frame 2 so as to be slidable in the bed longitudinal direction and rotatable about the axis in the bed width direction.

  FIG. 5 shows a perspective view of the tilting frame 6 and the upper frame 7 as seen from the bottom side of the bed. 5, the protrusion 9B of the base shaft portion 9 includes, for example, a pair of brackets 13 fixed to the shaft body 9A and a small shaft 14 that connects between the brackets 13 and 13. It is. The small shaft 14 extends parallel to the shaft main body 9A at a position away from the shaft main body 9A.

  As shown in FIG. 3 and FIG. 4, each arm portion 10 is, for example, a rod-shaped metal member, one end is fixed to the base shaft portion 9, and the other end is along the bed longitudinal direction. It extends to the user's head and terminates. In this embodiment, each arm part 10 consists of a frame material having a U-shaped cross section, for example, but is not limited to this, and various steel materials can be employed. Further, the arm portion 10 of this embodiment is supported by the auxiliary arm 8. The auxiliary arm 8 is rotatably connected at one end to the fixed frame 2 and at the other end to a substantially intermediate position of the link length of the arm portion 10.

  As shown in FIGS. 4 and 5, the pressing member 11 is configured as a substantially square lever having a first piece 11 </ b> A and a second piece 11 </ b> B, for example. A substantially central portion of the pressing member 11 is pivotally supported by the base shaft portion 9 so as to be rotatable. Further, the rod 3B of the actuator 3 is rotatably connected to the first piece 11A of the push member 11.

  Furthermore, the pressing member 11 of the present embodiment is disposed between the pair of brackets 13 and 13 described above, and the first piece 11A and the second piece 11B are arranged on the small shaft 14 in the horizontal state of the upper body couch 4. Located before and after. Further, the first piece 11A and the second piece 11B are both arranged in non-contact with the small shaft 14.

  As apparent from the comparison between FIGS. 3 and 4, according to the above configuration, when the rod 3 </ b> B of the actuator 3 is extended, first, only the pushing member 11 rotates relative to the base shaft portion 9. . Further, by extending the rod 3B of the actuator 3, the first piece 11A of the pushing member 11 comes into contact with the protrusion 9B (more specifically, the small shaft 14 shown in FIG. 5), and the pushing member 11 and the base shaft portion 9 are brought into contact with each other. And rotate together. When the base shaft portion 9 rotates, the arm portion 10 rises from the horizontal state shown in FIG. 3 as shown in FIG. 4, and the upper frame 7 described later can be changed to a reclining state.

  FIG. 6 shows a side view of the upper frame 7. As shown in FIGS. 5 and 6, the upper frame 7 of the present embodiment includes a first frame 15, a second frame 16, and a connecting portion 17 that connects these to be relatively movable. Although the upper frame 7 of the present embodiment is divided into two frames 15 and 16, in other embodiments, the upper frame 7 may be configured as a single frame.

  The first frame 15 is located on the user's head side, and has a horizontally long outline shape in plan view. The 2nd frame 16 is located in a user's waist | hip | lumbar part side, and has the outline shape of planar view horizontally long shape. The first frame 15 is configured to be smaller than the second frame 16, for example, and preferably configured to support only the user's head side lying on the bed surface. Such a first frame 15 is used to realize the above-described double function. This will be described later.

  Each of the first frame 15 and the second frame 16 includes, for example, a metal rectangular frame 18 arranged along the outer peripheral edge, and a plurality of reinforcing members 19 installed in a space surrounded by the frame 18, And a face member 20 supported by the frame body 18 and the reinforcing member 19 and disposed in a space surrounded by the frame body 18.

  The reinforcing material 19 extends, for example, along the bed longitudinal direction. In the present embodiment, the reinforcing member 19 is provided at a position corresponding to the arm portion 10 of the tilting frame 6. In other words, when the upper frame 7 is placed on the tilting frame 6 in the plan view of the bed, the reinforcing material 19 includes at least one that overlaps the arm portion 10. In the present embodiment, as a preferred mode, the reinforcing member 19 is provided with a pair of protruding pieces 22 so as to form a downwardly opened U-shaped groove that sandwiches the arm portion 10 from both sides in the bed width direction. ing. According to such a configuration, even when the upper frame 7 is simply placed on the tilting frame 6, it is possible to prevent the positional displacement of the upper frame 7 and the tilting frame 6 in the bed width direction, and stable both of them. Helps provide temporary fixation.

  The face material 20 constitutes a substantial bed surface for supporting the load of the user in the space surrounded by the frame body 18. In the present embodiment, the face material 20 is well represented in FIGS. 1 and 2. In addition, a wire mesh-like mesh material is used. Instead of or together with the mesh material, an elastic body such as urethane foam may be provided.

  As shown in FIG. 6, the connecting portion 17 includes, for example, a base 24 of the first frame 15, a base 26 of the second frame 16, an upper link 28 that connects them on the upper side, and a lower link that connects them on the lower side. 30. In a state where the first frame 15 and the second frame 16 are substantially horizontally continuous, the upper link 28 and the lower link 30 are, for example, arranged substantially in parallel, and the upper link 28 is It is configured to be shorter than the lower link 30. For example, when the lower link 30 is tilted upward as a drive node, the first frame 15 is lifted while being slightly tilted with respect to the second frame 16, as indicated by a virtual line in FIG. Such a configuration supports only the user's head while slightly floating with respect to the upper body, and serves to provide a function like a pillow to the upper body couch 4 (double function).

  As shown in FIG. 5, the upper frame 7 of the present embodiment is preferably fixed to the tilting frame 6 by, for example, a detachable non-bolt type coupling means 12. As the detachable non-bolt type coupling means 12, various types can be adopted as long as the two frames 6 and 7 can be fixed without a considerable number of continuous tightening operations like the bolt coupling.

  As the coupling means 12, for example, as shown in FIG. 7, a pin with a retaining function can be suitably used.

  The pin with a retaining function includes a pin body 32 and a snap pin 33 that can be attached to and detached from the pin body 32. The pin main body 32 includes a head portion 32A having a large outer diameter and a shaft portion 32B having a smaller diameter. On the free end side of the shaft portion 32B, a hole 32C that penetrates the shaft portion 32B in the diameter direction is formed. The snap pin 33 is made of a metal material bent in a substantially U shape, the one side 33A side is a straight portion that can be inserted into the hole 32C, and the other side 33B side is the outer periphery of the shaft portion 32B of the pin body 32. It is curved in a substantially semicircular shape so as to adhere closely along the part.

  The pin body 32 is inserted into a through hole that penetrates both the upper frame 7 and the tilting frame 6. As shown in FIG. 5, in the present embodiment, a first through hole 35 is formed on the tilting frame 6 side, and a second through hole 36 is formed on the upper frame 7 side. The first through hole 35 and the second through hole 36 are formed to coincide with each other when the upper frame 7 and the tilt frame 6 are correctly positioned. The first through hole 35 and the second through hole 36 have an inner diameter that is smaller than the head portion 32A of the pin body 32 and larger than the shaft portion 32B. The first through hole 35 of the present embodiment is formed on the side surface of each arm portion 10 of the tilting frame 6 so that the axis is horizontal. The second through hole 36 of the present embodiment is formed on the projecting piece 22 provided on the reinforcing member 19 of the second frame 16 so that the axis is horizontal.

  As shown in FIG. 8, for example, after the upper frame 7 is correctly positioned with respect to the tilt frame 6 slightly tilted, the pin body 32 is inserted into the first through hole 35 and the second through hole 36. . One side 33A of the snap pin 33 is inserted into and fixed to the hole 32C of the pin main body 32 that penetrates the upper frame 7 and the tilting frame 6 and protrudes therefrom while elastically deforming the other side 33B of the snap pin 33. Thereby, the pin main body 32 is restrained by the head 32 </ b> A and the other by the snap pin 33 with respect to the movement in the axial direction. Thereby, the pin main body 32 is prevented from being easily detached from the upper frame 7 and the tilting frame 6. Therefore, according to the bed 1 of the present embodiment, the upper frame 7 and the tilting frame 6 can be fixed extremely easily. It is desirable that a plurality of coupling means 12 is provided in order to stably fix the upper frame 7 and the tilting frame 6.

  When removing the upper frame 7 from the tilting frame 6, first, the snap pin 33 is pulled out from the pin body 32 while being elastically deformed. Next, the pin main body 32 is pulled out from the first through hole 35 and the second through hole 36 toward the head portion 32A. By pulling out all the pin main bodies 32, the tilting frame 6 and the upper frame 7 are not fixed to each other, and the upper frame 7 can be easily removed.

  As described above, the bed 1 of the present embodiment can quickly and easily remove only the bed portion, particularly the upper frame 7 that is close to the user's body. In addition, disinfection work and cleaning work after rental can be performed efficiently. Further, the upper frame 7 can be fixed and assembled to the tilting frame 6 very easily after maintenance.

  In the above embodiment, the coupling means 12 is composed of the pin main body 32 and the snap pin 33. However, the coupling means 12 can be implemented in various forms as long as the same function can be realized. . For example, a so-called ball lock pin provided with a freely retractable ball can be used at the end of the pin body 32 opposite to the head. In this case, the snap pin insertion / removal operation can be eliminated, and the upper frame can be easily disassembled and assembled. Further, as the other coupling means 12, a general-purpose one-touch screw that can be fixed by rotating about an axis of about 90 ° can be used.

  Since the upper frame 7 is mainly composed of a metal material, it has a relatively large weight. Therefore, it is important to further improve the efficiency of disassembling and attaching the upper frame 7. As shown in FIG. 8, the upper frame 7 of the present embodiment includes an engaging portion 40 that engages with at least a part of the tilt frame 6 in a tilted state, for example. The engaging portion 40 of the present embodiment is configured in a hook shape that can be hooked on the tip portion of the arm portion 10 of the tilting frame 6. By engaging the engaging portion 40 with the tilt frame 6, the weight of the upper frame 7 can be supported by the tilt frame 6. In addition, by tilting the upper frame 7 with respect to the arm portion 10 with the engaging portion 40 as a fulcrum, the two members are correctly aligned so that the first through hole 35 and the second through hole 36 substantially coincide with each other. Can be positioned. Therefore, the labor at the time of disassembly or assembly of the upper frame 7 and the tilting frame 6 is further reduced.

  As shown in FIGS. 5 and 6, the upper frame 7 of the present embodiment is provided with a link mechanism 50. The link mechanism 50 functions to move the first frame 15 up and down relative to the second frame 16. The link mechanism 50 of this embodiment includes, for example, a first link 51, a second link 52, a slider 53, and a lever 54.

  For example, one end of the first link 51 is connected to the reinforcing member 19 of the second frame 16 so as to be rotatable about an axis in the bed width direction.

  One end of the second link 52 is rotatably connected to the first link 51 by a connecting pin 55 having an axis in the bed width direction, and the other end is rotatable to the slider 53 around the axis in the bed width direction. It is connected.

  As also shown in FIG. 5, the slider 53 and the second link 52 are connected to each other by a guide pin 56 so as to be rotatable around an axis in the bed width direction, for example. For example, the guide pin 56 is inserted into an elongated hole of a guide piece 58 provided in the reinforcing member 19. The slider 53 has a bar shape extending in the longitudinal direction of the bed, and is bent in the vicinity of the first frame 15 and is terminated slightly. A lever 54 is coupled to the other end of the slider 53 so as to be rotatable about an axis in the bed width direction.

  A shaft portion 57 extending to both sides in the bed width direction is fixed to the lever 54. Each shaft portion 57 is fixed to the lower link 30 of the connecting portion 17 that connects the first frame 15 and the second frame 16.

  FIG. 9 shows a side view of the main part in which the tilting frame 6 and the upper frame 7 are extracted from the bed 1. As shown in FIG. 9, when the upper frame 7 is fixed on the tilting frame 6 in the horizontal state, the connecting pin 55 comes close to the second piece 11B of the pressing member 11 or the second piece 11B. It is positioned so as to substantially touch the top.

  According to the link mechanism 50, for example, by driving the actuator 3 and extending the rod 3B, the push member 11 is tilted with respect to the base shaft portion 9, and the second piece 11B is connected to the first link 51. The connecting pin 55 that connects the second link 52 is pushed toward the head in the bed longitudinal direction. Accordingly, the slider 53 moves to the first frame 15 side. By the movement of the slider 53, the lever 54 can be rotated clockwise in the figure, and the lower link 30 of the connecting portion 17 can be rotated clockwise. Thereby, as shown in FIG. 10, only the first frame 15 can be raised with respect to the second frame 16.

  A bed having a double function usually requires a link mechanism for lifting the first frame 15. Conventionally, this link mechanism has one end fixed to the first frame 15 and the other end rotatably fixed to the fixed frame 2 (Patent Document 1). Therefore, when removing the upper frame 7 from the double function bed, it is necessary to further remove the link mechanism. Therefore, the burden on the worker is particularly large.

  On the other hand, in the bed 1 of this embodiment, the link mechanism 50 for realizing the double function is completely independent in the upper frame 7 and is separated from the tilting frame 6 and the fixed frame 2. When the upper frame 7 and the tilting frame 6 are fixed, the upper frame 7 and the tilting frame 6 are configured to be operable by being pressed by the pressing member 11 on the tilting frame 6 side. Therefore, the bed 1 of the present embodiment can facilitate the removal and attachment of the upper frame 7 even in the bed 1 having a double function.

  As mentioned above, although especially preferable embodiment of this invention was explained in full detail, this invention is not limited to the specific embodiment of illustration, It can deform | transform and implement in a various aspect. In particular, the link mechanism or the like can be implemented in various forms as long as it has the same function.

DESCRIPTION OF SYMBOLS 1 Bed 2 Fixed frame 3 Actuator 3A Electric motor 3B Rod 4 Upper body bed part 6 Tilt frame 7 Upper frame 9 Base shaft part 9A Shaft body 9B Protrusion part 10 Arm part 11 Push member 11A 1st piece 11B 2nd piece 15 1st frame 16 Second frame 17 connecting portion

Claims (3)

A fixed frame installed on the floor, an actuator arranged on the fixed frame, and an upper body bed part arranged so as to be able to rise from a horizontal state to a reclining state with respect to the fixed frame by receiving the power of the actuator A bed having
The upper body couch portion includes a tilting frame that is tilted by being connected to the actuator, and an upper frame that is fixed on the tilting frame and forms a bed surface,
The upper frame is fixed to the tilting frame by a detachable non-bolt type coupling means,
The tilt frame includes a base shaft portion extending in a bed width direction, and an arm portion fixed to the base shaft portion,
The upper frame is engaged with at least a part of the tilt frame in a tilted state, and includes an engagement portion for supporting the weight of the upper frame on the tilt frame,
The engaging portion is configured in a hook shape that can be hooked to a tip portion of the arm portion of the tilting frame ,
The upper frame includes a first frame located on a user's head side, a second frame coupled to the first frame so as to be relatively movable and located on a user's waist, and the first frame A link mechanism that moves up and down relative to the second frame,
The tilting frame is provided with a pressing member that moves the first frame up and down by pressing a part of the link mechanism in a state where the upper frame is fixed to the fixed frame. bed.   The bed according to claim 1, wherein the coupling means includes a pin with a retaining function. The bed according to claim 1 or 2 , wherein the pushing member tilts the tilting frame to the reclining state after the first frame is lifted from the second frame.

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