Reclining bed

Abstract

To provide a reclining bed allowing assembly work at an installation place to be performed simply in a short time.SOLUTION: A reclining bed has a back leg interlocking link 133 which transmits to a leg raising bar 134 a driving force by an actuator 122 by being connected to a bracket 123 raising / falling a back bottom and the leg raising bar 134 raising / falling an upper leg bottom and interlockingly raises / falls the back bottom and the upper leg bottom. The bracket 123 is provided with a bar 128 connected to the back leg interlocking link 133, and the back leg interlocking link 133 is provided with a connection part 135 removably connected to the bar 128.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a reclining bed. [Background technology]

[0002] A reclining bed is known in which at least a first and a second of multiple support tables that are mounted on top of a base and support the body of a lying person can be raised and lowered in conjunction with one another (see, for example, non-patent document 1).

[0003] In such reclining beds, in order to configure the first and second receiving platforms so that they can be raised and lowered in conjunction with each other, a link member is often provided that raises and lowers the first and second raising and lowering mechanisms in conjunction with each other, which respectively raise and lower these receiving platforms. [Prior art documents] [Non-patent literature]

[0004] [Non-Patent Document 1] "Rafio instruction manual", [online], Platz Co., Ltd., [Searched June 19, 2020], Internet<URL:https: / / www.platz-ltd.co.jp / product / rafio / rafio / > Summary of the Invention [Problem to be solved by the invention]

[0005] In general, reclining beds are disassembled into multiple parts and assembled at the installation site to make it easier to transport from a manufacturing base to an installation site. In this case, the first and second lifting and lowering mechanisms and link members are often transported at least partially disassembled, and therefore an assembly task is required to connect these together at the installation site.

[0006] However, the assembly work of integrally connecting the first raising / lowering mechanism, the second raising / lowering mechanism, and the link member requires a lot of work and time.

[0007] The present invention has been made in consideration of the above problems, and has an object to provide a reclining bed that can be easily assembled at the installation site in a short period of time. [Means for solving the problem]

[0008] In order to solve the above problems, a reclining bed according to one aspect of the present invention is a reclining bed that is provided on top of a base and has at least a first and a second receiving platform of a plurality of receiving platforms that support the body of a lying person, and is arranged so that they can be raised and lowered in conjunction with each other, the bed having a first raising mechanism and a second raising mechanism for raising and lowering the first and second receiving platforms, respectively, a drive mechanism for raising and lowering the first receiving platform by driving the first raising mechanism, and a linking mechanism that is connected to the first raising mechanism and the second raising mechanism, respectively, and transmits the driving force of the first raising mechanism by the drive mechanism to the second raising mechanism, thereby raising and lowering the first and second receiving platforms in conjunction with each other, the first raising mechanism having a connected part that is connected to the linking mechanism, and the linking mechanism having a connecting part that is detachably connected to the connected part, and the connecting part has an abutment part that abuts at least a part of the connected part when the driving force from the drive mechanism is transmitted to the linking mechanism and the linking mechanism moves in one direction. Effect of the Invention

[0009] According to the present invention, it is possible to realize a reclining bed that can be easily assembled at the installation site in a short period of time. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view showing a schematic configuration of a reclining bed according to a first embodiment. [Diagram 2] FIG. 1 is an exploded perspective view showing a reclining bed according to a first embodiment. [Diagram 3]FIG. 1 is an exploded perspective view showing a base of a reclining bed according to a first embodiment. [Figure 4] FIG. 1 is an exploded perspective view showing a base of a reclining bed according to a first embodiment. [Diagram 5] FIG. 2 is a partially cutaway perspective view showing an interlocking mechanism of the reclining bed according to the first embodiment. [Figure 6] 10A to 10D are diagrams illustrating an operation of connecting a connecting portion of an interlocking mechanism of the reclining bed in accordance with the first embodiment to a connected portion of a first raising and lowering mechanism. [Figure 7] 1 is a diagram showing a state in which a connecting portion of an interlocking mechanism of a reclining bed according to Example 1 is connected to a connected portion of a first raising / lowering mechanism. FIG. [Figure 8] FIG. 2 is a diagram showing an outline of a linkage provided by a linkage mechanism of the reclining bed according to the first embodiment. [Figure 9] FIG. 11 is a schematic diagram showing an example of a modified example of the connecting portion of the interlocking mechanism of the reclining bed according to the first embodiment. [Figure 10] FIG. 11 is a perspective view showing a support base of a reclining bed according to a second embodiment. [Figure 11] FIG. 11 is a perspective view showing an interlocking mechanism of a reclining bed according to a second embodiment. [Figure 12] FIG. 11 is a partially cutaway perspective view showing a state in which a connecting portion of an interlocking mechanism of a reclining bed according to a second embodiment is connected to a connected portion of a first raising / lowering mechanism. [Figure 13] FIG. 11 is a perspective view showing another example of a modified example of the connecting portion of the interlocking mechanism of the reclining bed in accordance with the first embodiment. [Figure 14] 10 is a schematic diagram showing another modified example of the connecting portion of the interlocking mechanism of the reclining bed in accordance with the first embodiment. FIG. [Figure 15] FIG. 11 is a perspective view showing still another modified example of the connecting portion of the interlocking mechanism of the reclining bed in accordance with the first embodiment. [Figure 16] 13 is a schematic diagram showing still another modified example of the connecting portion of the interlocking mechanism of the reclining bed in accordance with the first embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the embodiments described below do not limit the invention according to the claims, and all of the elements and combinations thereof described in the embodiments are not necessarily essential to the solution of the invention.

[0012] In the drawings explaining the embodiments, the same reference numerals are used to designate parts having the same functions, and repeated explanations thereof will be omitted. EXAMPLES

[0013] A reclining bed of the first embodiment will be described with reference to Figures 1 to 7. First, an overview of the reclining bed of this embodiment will be described with reference to Figures 1 and 2.

[0014] The reclining bed B of this embodiment has a base 10 placed on the floor (not shown), a support 20 provided on the top of the base 10, and a headboard 30 and a footboard 31 respectively provided on the front and rear ends of the base 10. In the following description, the front-rear direction refers to the direction from the upper left to the lower right in FIG. 1, that is, the length direction of the reclining bed B, with the lower right being the front and the upper left being the rear in FIG. 1. The left-right direction refers to the direction from the lower left to the upper right in FIG. 1, that is, the width direction of the reclining bed B, with the lower left being the left and the upper right being the right in FIG. 1. Furthermore, the up-down direction refers to the up-down direction in FIG. 1, that is, the up-down direction of the reclining bed B, with the up being the up and the down being the down.

[0015] As shown in detail in Figures 2 and 3, the base 10 has a base frame 11 placed on a floor (not shown), and a head frame 12, a center frame 13, and a foot frame 14 provided on the upper part of this base frame 11.

[0016] The base frame 11 has a pair of front and rear bars 110 arranged at a predetermined interval in the front and rear direction of the reclining bed B, and a pair of left and right bars 111 rotatably provided at the front and rear of the front and rear bars 110, respectively, connecting the front and rear bars 110. Fixed legs 112 that come into contact with the floor surface (not shown) are attached to the front and rear ends of the front and rear bars 110, respectively. The fixed legs 112 are provided therein with claw members (not shown) made of an elastic body such as a spring, and the claw members are attached to the front and rear bars 110 by detachably engaging with notches or holes in the front and rear ends of the front and rear bars 110.

[0017] Link members 113 are attached to both the left and right ends of each of the left and right bars 111. The pair of link members 113 located on the right and left are rotatably connected at approximately the center by a pin 114. These link members 113 and pins 114 form an X-link mechanism. The upper ends of the link members 113 are connected by a connecting bar 115 extending in the left-right direction. The center portion of the connecting bar 115 located at the front of the reclining bed B is curved downward to ensure a rotation range for a back-leg interlocking link 133 described later (see FIG. 3 for details).

[0018] A support bar 116 that connects the front-rear bars 110 is provided behind the left-right bars 111 located at the rear of the reclining bed B. An actuator 117 for adjusting the height of the support base 20 of the reclining bed B is provided at the center of the support bar 116. The actuator 117 has an electric motor 117a and a rod 117b that is movable forward and backward by the electric motor 117a. The tip of the rod 117b is connected to a connecting bar 115 located at the rear via a link mechanism 118. As a result, the connecting bar 115 is moved up and down by the forward and backward movement of the rod 117b of the actuator 117, and thus the X-link mechanism formed by the link member 113 and the pin 114 is driven, and the vertical positions of the pair of connecting bars 115 are changed in conjunction with each other.

[0019] The head frame 12 has a pair of front-rear bars 120 arranged at a predetermined interval in the front-rear direction of the reclining bed B, and a pair of left-right bars 121 provided at the front and rear of the front-rear bars 120, respectively, to connect the front-rear bars 120. The left-right bars 121 located at the rear of the reclining bed B are provided rotatably relative to the front-rear bars 120.

[0020] An actuator 122 that can raise and lower the back bottom 22 and high back support 21 (described later) is provided at the center of the left and right bars 121 located at the front of the reclining bed B. The actuator 122 has an electric motor 122a and a rod 122b that can be moved forward and backward by the electric motor 122a. The tip of the rod 122b is rotatably attached via a pin 124 to the front end of a bracket 123 that is triangular in side view.

[0021] The center of the bracket 123 is fixed to a rotating bar 125 which connects the pair of front and rear bars 120 and is rotatably attached to the front and rear bars 120. Therefore, the bracket 123 is rotated around the rotating bar 125 by the forward and backward movement of the rod 122b of the actuator 122, and the rotating bar 125 also rotates accordingly.

[0022] A back-raising arm 126 is fixed to each of the left and right ends of the rotating bar 125, and the tip of the back-raising arm 126 is rotatably fixed to a back-raising bar 127. The rear end of the back-raising bar 127 is fixed to the left and right bars 121 located at the rear of the reclining bed B. As a result, when the rotating bar 125 is rotated by the forward and backward movement of the rod 122b of the actuator 122, the back-raising arm 126 also rotates accordingly, and as a result, the back-raising bar 127 is rotated. Since the back-raising bar 127 supports the back bottom 22 and the high back support 21 described later from below, the back bottom 22 and the high back support 21 can be raised and lowered by the actuator 122. Therefore, the bracket 123, the rotating bar 125, the back-raising arm 126, and the back-raising bar 127 operate as a first raising and lowering mechanism that raises and lowers the back bottom 22 and the high back support 21 by the actuator 122. Moreover, the actuator 122 operates as a drive mechanism that drives the first raising and lowering mechanism.

[0023] As shown in detail in Fig. 3, a bar (connected part) 128 that is connected to a connecting part 135 of a back-leg interlocking link 133 (described later) is attached to the rear end of the bracket 123 and extends in the left-right direction. Also, each of the front and rear bars 120 is provided with a side rail holder 129 that protrudes outward in the left-right direction and can move forward and backward in the left-right direction. A side rail (not shown) that prevents a person lying on the receiving platform 20 from falling off the reclining bed B is attached to the side rail holder 129.

[0024] The center frame 13 has a pair of front and rear bars 130 arranged at a predetermined distance in the front and rear direction of the reclining bed B, and left and right bars 131 provided at the rear of the front and rear bars 130 and connecting these front and rear bars 130.

[0025] A left-right bar 132 that connects the pair of front-rear bars 130 is provided at the center of the front-rear bars 130. A bracket (not shown) is fixed to the left-right bar 132, and a leg-raising bar 134 that projects rearward from the reclining bed B and extends in the front-rear direction is rotatably connected to the rear end of the bracket as viewed from the reclining bed B. Furthermore, a back-leg interlocking link 133 that projects forward from the reclining bed B and extends in the front-rear direction has its rear end rotatably connected to the front end of the leg-raising bar 134 as viewed from the reclining bed B. As a result, when the back-leg interlocking link 133 moves in the front-rear direction of the reclining bed B, the leg-raising bar 134 is swung up and down in accordance with the movement of the back-leg interlocking link 133 in the front-rear direction.

[0026] A connecting portion 135 is provided at the front end of the back / leg interlocking link 133, which is connected to the bar 128 of the bracket 123. This connecting portion 135 engages with and is connected to the bar 128, so that the back / leg interlocking link 133 moves in the front-rear direction of the reclining bed B in conjunction with the rotation of the bracket 123, and as a result, the leg-raising bar 134 swings up and down.

[0027] A roller 136 is rotatably fixed to the tip (rear end) of the leg lifting bar 134. This roller 136 abuts against the underside of the knee-leg bottom 24 near the connection part described later, so that as the leg lifting bar 134 rotates, the roller 136 pushes up the knee-leg bottom 24 from below, thereby raising and lowering the knee-leg bottom 24. Therefore, the leg lifting bar 134 and the roller 136 operate as a second raising and lowering mechanism that raises and lowers the knee-leg bottom 24 by the actuator 122. The back-leg interlocking link 133 also operates as an interlocking mechanism that transmits the driving force of the first raising and lowering mechanism, which is the actuator 122, to the second raising and lowering mechanism.

[0028] The central portion of the left and right bars 131 is curved upward in order to ensure an operating range for the X-link mechanism of the base frame 11 (see FIG. 3 for details).

[0029] The foot frame 14 has a pair of front and rear bars 140 arranged at a predetermined interval in the front and rear direction of the reclining bed B, and a left and right bar 141 that is provided at approximately the center of the front and rear bars 130 and connects these front and rear bars 140. The center of the left and right bars 141 is curved upward to ensure the operating range of the X-link mechanism of the base frame 11 (see FIG. 3 for details).

[0030] Similarly to the head frame 12, each of the front and rear bars 140 is provided with a side rail holder 142 that protrudes outward in the left and right directions and is movable back and forth in the left and right directions.

[0031] A receiving member 137 extending in the front-rear direction of the reclining bed B is attached to the inside of the rear part of the front-rear bar 130 of the center frame 13. A semicircular bracket 138 opening downward is attached to the inside of the front end part of the front-rear bar 130 of the center frame 13. As shown in Fig. 3, both left and right ends of the connecting bar 115 located on the rear side of the reclining bed B of the base frame 11 are fitted into the receiving member 137 of the center frame 13, and both left and right ends of the connecting bar 115 located on the front side of the reclining bed B of the base frame 11 are rotatably attached to the bracket 138 of the center frame 13.

[0032] In this way, the center frame 13 is attached to the base frame 11. In addition, when the connecting bar 115 moves up and down due to the forward and backward movement of the rod 117b of the actuator 117, the connecting bar 115 located on the rear side of the reclining bed B slides inside the receiving member 137 of the center frame 13, so that the center frame 13 (and the head frame 12 and foot frame 14 fixed to the center frame 13) is moved up and down by the base frame 11 while the fixed state between the base frame 11 and the center frame 13 is maintained.

[0033] Furthermore, the head frame 12 and the foot frame 14 are fixed to the center frame 13 by unillustrated pins and bolts provided on the center frame 13. As a result, the base frame 11, the head frame 12, the center frame 13 and the foot frame 14 are integrated as shown in FIG.

[0034] Here, as shown in FIG. 4, the head frame 12 is provided with a pin 1200 that protrudes rearward. When this pin 1200 is inserted into the bracket 138 of the center frame 13, the base frame 11, the center frame 13 and the head frame 12 are fixed together and the connecting bar 115 located on the front side of the reclining bed B is prevented from coming loose.

[0035] The support base 20 has a back bottom 22 and a high back support 21 for mainly receiving the weight of the upper body (above the buttocks) of the lying person (supporting the upper body from below), a waist bottom 23 for mainly receiving the weight of the buttocks of the lying person (supporting the buttocks of the lying person from below), and a knee / leg bottom 24 for mainly receiving the weight of the lower body (below the buttocks) of the lying person (supporting the lower body from below).

[0036] The high back support 21 bears the weight of the lower back (spine) of the lying person below the shoulders (scapulae) (supports the lower back (spine) of the lying person below the shoulders (scapulae) from below). The back bottom 22 bears the weight of the upper shoulders and head of the lying person above the shoulders (scapulae) (supports the upper shoulders and head of the lying person above the shoulders (scapulae) from below). The high back support 21 is provided so as to be able to rise and fall relative to the back bottom 22 by having its front end connected to the rear end of the back bottom 22 via a pin 25 so as to be able to rotate up and down.

[0037] The knee-leg bottom 24 is divided into an upper leg bottom 26 for receiving the weight of the thighs of the reclining person (supporting the thighs from below) and a lower leg bottom 27 for receiving the weight of the lower legs of the reclining person (supporting the lower legs from below). The lower leg bottom 27 is provided so as to be freely bendable relative to the upper leg bottom 26 by having its rear end connected to the front end of the upper leg bottom 26 via a pin 28 so as to be freely rotatable up and down.

[0038] The rear end of the back bottom 22 is rotatably attached to the rear end of the head frame 12, and the back-raising bar 127 is fixed to the center of the back bottom 22, thereby attaching the back bottom 22 to the head frame 12. Similarly, the rear end of the waist bottom 23 is rotatably attached to the center frame 13, and further, the front end of the upper leg bottom 26 is similarly attached to the center frame 13, thereby attaching the waist bottom 23 and the knee-leg bottom 24 to the center frame 13.

[0039] Next, the connection portion 135 of the back-leg interlocking link 133 will be described in detail with reference to Figs.

[0040] As already explained, the connecting part 135 which is the front end of the back-leg interlocking link 133 is engaged and connected to the bar 128 at the rear end of the bracket 123. The connecting part 135 is formed in a hook shape when viewed from the side, as best shown in Fig. 5. More specifically, the connecting part 135 has an opening 135a which opens downward, and this opening 135a forms the connecting part 135 as a whole in a hook shape.

[0041] 6, the connecting portion 135 is pushed downward and the opening 135a is inserted into and engaged with the bar 128 at the rear end of the bracket 123, thereby detachably connecting the back-leg interlocking link 133 and the bracket 123. At this time, the width of the upper part of the opening 135a is formed slightly larger than the diameter of the bar 128. As a result, when the bracket 123 is rotated as shown in FIG. 7, the end (abutment portion) 135b of the opening 135a shown in FIG. 5 abuts against the bar 128, and the turning force of the bracket 123 (the driving force of the actuator 122) is transmitted to the back-leg interlocking link 133.

[0042] The function and effect of the reclining bed B of this embodiment will be described with reference to FIG.

[0043] As shown in FIG. 8(a), the extension of rod 122b of actuator 122 causes bracket 123 to rotate clockwise around rotating bar 125. In response to this rotation of bracket 123, back-leg interlocking link 133 moves to the right in the figure, and leg raising bar 134 swings counterclockwise in the figure.

[0044] As shown in Fig. 8(b), in the general reclining bed shown in the above-mentioned Non-Patent Document 1, a connecting hole 133a is provided at the front end of the back-leg interlocking link 133, and a similar connecting hole 123a is provided at the rear end of the bracket 123, and these connecting holes 123a, 133a are connected by a pin P at the assembly site. However, in the configuration shown in Fig. 7(b), the work of connecting the bracket 123 and the back-leg interlocking link 133 requires time and effort, and further, when disassembling the reclining bed or releasing the interlocking of the back bottom 22 and the knee-leg bottom 24, the pin P needs to be removed, which also requires time and effort.

[0045] On the other hand, in the reclining bed B of this embodiment, as shown in Figure 8 (c), the connecting part 135 of the back-leg interlocking link 133 is detachably connected to the bar 128, which is the connected part of the bracket 123, so that the connection and disconnection operations between the bracket 123 and the back-leg interlocking link 133 can be performed more easily and can be completed in a shorter time.

[0046] In the reclining bed B of this example, the opening 135a of the connecting part 135 opens downward, and the connecting part 135 is attached and detached in the up-down direction. When the reclining bed B of this embodiment is assembled and a reclining person lies on the support base 20, a force in the clockwise direction acts on the bracket 123 due to gravity and the weight of the reclining person, while a force in the counterclockwise direction acts on the leg-raising bar 134. As a result, the back-leg interlocking link 133 is subjected to forces in opposite directions from both ends along the extension direction of the back-leg interlocking link 133 (the front-rear direction of the reclining bed B). Even if the bracket 123 rotates, a force in the extension direction acts on the back-leg interlocking link 133. Therefore, while reclining bed B is in use, a force along the front-to-rear direction of reclining bed B is constantly acting on back-leg interlocking link 133, so even if opening 135a of connecting part 135 opens downward, almost no upward force acts on this connecting part 135, that is, a force in the direction of releasing the connection between connecting part 135 and bar 128. Therefore, even if connecting part 135 is configured to be detachable from bar 128 and opening 135a opens downward, the engagement and connection between connecting part 135 and bar 128 is unlikely to be easily released.

[0047] In addition, since end 135b of opening 135a abuts against bar 128, the rotational force of bracket 123 is easily transmitted to back-leg interlocking link 133, and even if connecting part 135 is configured to be detachable from bar 128, there is little loss of force.

[0048] In the reclining bed B of this embodiment, it is also possible to further extend the upper part of the opening 135a of the connecting part 135 toward the rear of the reclining bed B as shown in Fig. 9. With the connecting part 135 shown in Fig. 9, the connecting part 135 and the bar 128 can be engaged more reliably when a force acts in a direction in which the back-leg interlocking link 133 moves leftward in the figure. EXAMPLES

[0049] In the above-mentioned embodiment 1, the back-leg interlocking link 133 which interlocks the back bottom 22 and the knee-leg bottom 24 is detachably connected to the bracket 123. However, the configuration for easily connecting the interlocking mechanism is not limited to that in embodiment 1. In this embodiment, the configuration for easily connecting the interlocking mechanism between the high back support 21 and the back bottom 22 will be described with reference to Figs. 10 to 12.

[0050] As shown in Figure 10, a linkage mechanism 40 is attached to the high back support 21 and the back bottom 22 on the side opposite to the side on which the reclining person lies (the lower side in Figure 10), which links and raises and lowers the high back support 21 and the back bottom 22.

[0051] As shown in Figure 11, the interlocking mechanism 40 has a first interlocking bar 41 attached to the back bottom 22 and extending in the front-to-rear direction of the reclining bed B, a second interlocking bar 42 attached to the high back support 21 and extending in the front-to-rear direction of the reclining bed B, and an interlocking link 43 connecting these first and second interlocking bars 41, 42.

[0052] The first interlocking bar 41 is restricted from moving in any direction other than the front-rear direction of the reclining bed B by a bracket 44 protruding downward from the back bottom 22. The front end of the first interlocking bar 41 is rotatably connected to one end of an interlocking link 43. The interlocking link 43 is formed in a triangular shape when viewed from the side, and its rear end is rotatably connected to a bracket 45 protruding downward from the back bottom 22, so that the entire interlocking link 43 can rotate around the connection part with the bracket 45. The front end of the interlocking link 43 is rotatably connected to the rear end of the second interlocking bar 42, and the front end of the second interlocking bar 42 is rotatably connected to a bracket 46 protruding downward from the high back support 21.

[0053] 11 and 12, the rear end 47 of the first interlocking bar 41 is formed in the same shape as the connecting part 135 of the back-leg interlocking link 133 of the first embodiment. That is, as shown in detail in Fig. 12, the rear end 47 of the first interlocking bar 41 is formed as a connecting part having an opening 47a that can engage with the bracket 48. This opening 47a opens downward, and a front end 47b of the opening 47a serves as an abutment part that abuts against the bracket 48.

[0054] 2, the bracket 48 is connected to the left and right bars 121 at the rear end of the head frame 12. Therefore, when the left and right bars 121 rotate due to the drive of the actuator 122, the bracket 48 also rotates in conjunction with the left and right bars 121, and as a result, the first interlocking bar 41 moves in the front direction of the reclining bed B in FIG.

[0055] As the first interlocking bar 41 moves, the interlocking link 43 rotates clockwise, and the second interlocking bar 42 also moves backward of the reclining bed B due to the rotation of the interlocking link 43. As a result, the high back support 21 is raised clockwise in the figure relative to the back bottom 22 around the pin 25. Meanwhile, as described above, the back bottom 22 is also raised clockwise in the figure by the drive of the actuator 122, so that the back bottom 22 itself is raised while the high back support 21 is raised relative to the back bottom 22. This operation continues until the connection part of the interlocking link 43 with the first interlocking bar 41 and the connection part with the second interlocking bar 42 become approximately horizontal in the figure. Then, when the connection part of the interlocking link 43 with the first interlocking bar 41 and the connection part with the second interlocking bar 42 become approximately horizontal in the figure, the relative rotation of the high back support 21 with respect to the back bottom 22 is eliminated, and the back bottom 22 and the high back support 21 become approximately horizontal relative to each other.

[0056] Therefore, this embodiment can also provide the same effects as those of the first embodiment.

[0057] In addition, the above-mentioned embodiments are described in detail to clearly explain the present invention, and are not necessarily limited to those including all of the described configurations. Also, some of the configurations of each embodiment can be added to, deleted from, or replaced with other configurations.

[0058] For example, the shapes and structures of the connecting portion and connected portion are not limited to those in the above-described embodiments, and there are no particular limitations as long as they are shapes and structures that allow for detachable connection.

[0059] 13 and 14, in the first embodiment, a hollow annular connecting part 50 may be provided at the rear end of the back-leg interlocking link 133, while the bar 128 of the bracket 123 may be configured to be able to advance and retreat relative to the bracket 123 using a spring or the like (not shown). In this case, when engaging the connecting part 50 with the bar 128, the bar 128 may be temporarily retracted, and the connecting part 50 may be moved forward until its hollow part passes the bar 128, at which point the bar 128 may be advanced and engaged with the connecting part 50.

[0060] 15, the connecting part 51 of the back-leg interlocking link 133 may be formed as a hollow ring having a semicircular part in a side view, and a part of this connecting part 51 may be made into an insertion part 52 that can swing up and down using a spring or the like. In this case, the bar 128 of the bracket 123 may be inserted into the hollow part of the connecting part 51 with the insertion part 52 pressed downward, and then the insertion part 52 may be returned upward to engage the connecting part 51 and the bar 128.

[0061] 16, a semicircular hollow portion 54 may be formed at the front end of the connecting portion 53, and the upper opening of this hollow portion 54 may be covered with an inserting portion 55 which can move back and forth. In this case, the inserting portion 55 may be temporarily retracted, the bar 128 may be inserted into the hollow portion 54, and then the inserting portion 55 may be returned to its original position, so that the connecting portion 53 and the bar 128 can be engaged with each other.

[0062] In the above-mentioned embodiment, the control lines and information lines are shown as those considered necessary for the explanation, and not all the control lines and information lines are shown in the product. All the components may be connected to each other. [Explanation of symbols]

[0063] B...Reclining bed 10...Base 11...Base frame 12...Head frame 13...Center frame 14...Foot frame 20...Receiving base 21...High back support 22...Back bottom 23...Waist bottom 24...Knee-leg bottom 26...Upper leg bottom 27...Lower leg bottom 40...Interlocking mechanism 41...First interlocking bar 42...Second interlocking bar 43...Interlocking link 122...Actuator 123...Bracket 128...Bar 133...Back-leg interlocking link 134...Leg lifting bar

Claims

1. A reclining bed is provided on an upper part of a base, and at least a first support and a second support of a plurality of support tables for supporting the body of a reclining person are provided so as to be movable up and down in an interlocking manner, a first raising / lowering mechanism and a second raising / lowering mechanism for raising / lowering the first receiving platform and the second receiving platform, respectively; a drive mechanism that drives the first raising / lowering mechanism to raise / lower the first receiving platform; an interlocking mechanism that is connected to the first raising / lowering mechanism and the second raising / lowering mechanism, respectively, to transmit a driving force of the first raising / lowering mechanism by the driving mechanism to the second raising / lowering mechanism, thereby raising / lowering the first receiving platform and the second receiving platform in an interlocking manner; having the first raising / lowering mechanism is provided with a connected part that is connected to the interlocking mechanism, and the interlocking mechanism is provided with a connecting part that is detachably connected to the connected part, the connecting portion has an abutment portion with which at least a part of the connected portion abuts when the interlocking mechanism moves in the front-rear direction as a result of a driving force from the driving mechanism being transmitted to the interlocking mechanism via the connected portion, The connecting portion has a hollow interior with an opening at a lower portion, and at least a part of the connected portion is inserted into the interior through the opening in a removable manner, whereby the connected portion is connected to the connecting portion; A reclining bed, wherein the abutment portion is located at a position offset from an extension line of the opening in the interior in the vertical direction.

2. the coupling portion has a first passage and a second passage that define the interior and are in communication with each other; The first passage has the opening, The second passage includes the abutment portion and is located on a line different from an extension line of the first passage.

2. The reclining bed of claim 1.

3. The front connected portion can be swung about an axis in the left-right direction of the base by the driving force, The movement of the connected part due to the driving force is transmitted to the connecting part, so that the interlocking mechanism moves in the front-rear direction.

3. A reclining bed according to claim 1 or 2.

4. The interior of the connecting portion is formed so that the connected portion can move in the front-rear direction.

2. The reclining bed of claim 1.

5. A reclining bed is provided on an upper part of a base, and at least a first support and a second support of a plurality of support tables for supporting the body of a reclining person are provided so as to be movable up and down in an interlocking manner, a first raising / lowering mechanism and a second raising / lowering mechanism for raising / lowering the first receiving platform and the second receiving platform, respectively; a drive mechanism that drives the first raising / lowering mechanism to raise / lower the first receiving platform; an interlocking mechanism that is connected to the first raising / lowering mechanism and the second raising / lowering mechanism, respectively, to transmit a driving force of the first raising / lowering mechanism by the driving mechanism to the second raising / lowering mechanism, thereby raising / lowering the first receiving platform and the second receiving platform in an interlocking manner; having the first raising / lowering mechanism is provided with a connected part that is connected to the interlocking mechanism, and the interlocking mechanism is provided with a connecting part that is detachably connected to the connected part, the connecting portion has an abutment portion with which at least a part of the connected portion abuts when the interlocking mechanism moves in one direction as a result of a driving force being transmitted from the driving mechanism to the connected portion, a direction in which the connecting portion is attached and detached is substantially the same as the one direction which is the moving direction of the drive mechanism, The connected portion has an engaging portion that is movable in a horizontal direction perpendicular to the one direction, A reclining bed, in which the connecting portion is removably connected to the connected portion by at least a portion of the connecting portion engaging with the engaging portion.

6. The connecting portion is a hollow annular connecting portion, The one direction is a front-rear direction, The engaging portion is a bar that can be moved forward and backward in the horizontal direction relative to the connecting portion.

6. The reclining bed of claim 5.

7. A reclining bed is provided on an upper part of a base, and at least a first support and a second support of a plurality of support tables for supporting the body of a reclining person are provided so as to be movable up and down in an interlocking manner, a first raising / lowering mechanism and a second raising / lowering mechanism for raising / lowering the first receiving platform and the second receiving platform, respectively; a drive mechanism that drives the first raising / lowering mechanism to raise / lower the first receiving platform; an interlocking mechanism that is connected to the first raising / lowering mechanism and the second raising / lowering mechanism, respectively, to transmit a driving force of the first raising / lowering mechanism by the driving mechanism to the second raising / lowering mechanism, thereby raising / lowering the first receiving platform and the second receiving platform in an interlocking manner; having the first raising / lowering mechanism is provided with a connected part that is connected to the interlocking mechanism, and the interlocking mechanism is provided with a connecting part that is detachably connected to the connected part, the connecting portion has an abutment portion with which at least a part of the connected portion abuts when the interlocking mechanism moves in the front-rear direction as a result of a driving force from the driving mechanism being transmitted to the interlocking mechanism via the connected portion, The connecting portion is a hollow annular connecting portion having an insertion portion that closes the inside of the connecting portion in an openable and closable manner, The connected part is inserted into the interior through the insertion part and closed, so that the connected part is connected to the connecting part. Reclining bed.

8. The first support is an upper body support that supports the upper body of the lying person, 8. The reclining bed according to claim 1, wherein the second support is a lower body support that supports at least a part of the lower body of the person reclining.

9. The second support is a shoulder support that supports a first portion of the upper body of the lying person from the shoulders upward, 8. The reclining bed according to claim 1, wherein the first support is a back support that supports a second portion of the upper body that is lower than the first portion.

Images