JP7535807B2 - Reclining bed - Google Patents

Description

The present invention relates to a reclining bed in which support platforms for the body of a reclining person (a person lying on the bed in a supine, lateral, prone, or other position) are arranged in front and behind the bed in the direction of the person's height, and the front and rear support platforms are connected by a connector so that they can be bent.

Conventionally, reclining beds, in which the support base for the body of a reclining person is divided into front and rear sections along the height of the reclining person and can be bent, have been widely used in hospitals, nursing homes, home care, and other facilities.

In this reclining bed, a shoulder support, a back support, a buttocks support, a thigh support, and a lower leg support are provided on the top of the base to support the body of a person lying down, and the shoulder support and back support, as well as the thigh support and lower leg support, are each bendable relative to the buttocks support, and the shoulder support and back support, as well as the thigh support and lower leg support are each bendable and connected via hinges that have rotation axes that serve as the bending centers.

In this reclining bed, the bending position (center of bending) between the shoulder support and the back support, and the bending position (center of bending) between the thigh support and the lower leg support differ depending on the body of the reclining person (height, leg length, sitting height, etc.).

For this reason, in conventional reclining beds, the hinges connecting adjacent support bases (shoulder support and back support, and thigh support and lower leg support) can be shifted forward or backward to shift the rotation axis of the hinge, which is the center of bending, forward or backward, making it possible to change the bending position to suit the body of the person lying down (see, for example, Patent Document 1).

JP 2009-82396 A

In the conventional reclining beds described above, the bending position is changed by removing the fixture that secures the hinge to the base, shifting the hinge (rotation axis) forward or backward, and then securing the hinge with a fixture.

Therefore, the present invention aims to further improve the ease of operation required to change the bending position of a reclining bed whose bending position can be changed forward and backward.

In the present invention of claim 1, in a reclining bed in which support platforms for supporting the body of a lying person are arranged front to back in the direction of the person's height, and the front and rear support platforms are flexibly connected by a connecting body, the connecting body rotatably supports a rotating shaft provided on either the front or rear support platform which serves as the bending center for bending the front and rear support platforms , and is provided with a connecting hole which matches the insertion hole provided on the front or rear support platform, and by connecting the connecting hole to the insertion hole provided on either the front or rear support platform with a selection pin, the bending center for bending the front or rear support platforms can be changed to the rotating shaft provided on either the front or rear support platform, making it possible to change the bending center for bending the front or rear support platforms to front or rear.

In a second aspect of the present invention, in the first aspect of the present invention, the connector has a rotation shaft and a connection hole disposed above and below the rotation shaft.

In addition, in the present invention according to claim 3, in the present invention according to claim 1 or claim 2, the connecting body has an auxiliary support placed between the front and rear supports to support the body of a lying person.

And the present invention has the following advantages:

In other words, in this invention, in a reclining bed in which the support bases for supporting the body of a reclining person are arranged in a front-to-back arrangement along the height direction of the reclining person, and the front and rear support bases are flexibly connected by a connecting body, the connecting body rotatably supports the front and rear rotation axes that serve as the bending center for bending the front and rear support bases, and has connecting holes on the front and rear that match the insertion holes on the front and rear support bases, respectively, and by connecting either the front or rear connecting hole to the insertion hole on either the front or rear support base with a selection pin, it is possible to select either the front or rear rotation axis that serves as the bending center for bending the front or rear support bases, so that the front and rear rotation axes that serve as the bending center are provided in the connecting body in advance, and either the front or rear rotation axis can be easily selected with just the selection pin without removing the connecting body, which improves the workability required to change the bending position of the reclining bed.

In particular, if the front and rear rotation shafts and connection holes of the connecting body are arranged above and below, respectively, the front-to-rear length of the connecting body can be shortened and the distance between the front and rear receiving platforms can be narrowed, so that the body of a person lying down can be well supported by the edges of the front and rear receiving platforms when the front and rear receiving platforms are bent.

In addition, if an auxiliary support is provided on the connecting body between the front and rear supports to support the body of the lying person, the gap between the front and rear supports can be filled with the auxiliary support, so that the body of the lying person can be well supported by the auxiliary support when the front and rear supports are bent.

FIG. 1 is an explanatory side view showing a reclining bed according to the present invention. FIG. 4A and 4B are a plan view and a side view showing a bending position selection mechanism. FIG. 4A and 4B are a plan view and a side view showing a bending position selection mechanism. FIG. 1A is a plan view and a side view showing a bending position selection mechanism, and FIG. 1B is a plan view and a side view showing a connecting body, FIG.

The specific configuration of the reclining bed according to the present invention will be explained below with reference to the drawings.

As shown in Figures 1 and 2, the reclining bed 1 has a support 3 for supporting the body of a person lying down on the upper part of a base 2 that is elongated in the front-to-rear direction when viewed from the front. For the sake of convenience, the foot side of a person lying down on the reclining bed 1 will be described as the front side, and the head side as the rear side.

The support base 3 is composed of a buttocks support base 4 for mainly receiving the weight of the buttocks of the lying person (supporting the buttocks of the lying person from below), an upper body support base 5 for mainly receiving the weight of the upper body (above the buttocks) of the lying person (supporting the upper body from below), and a lower body support base 6 for mainly receiving the weight of the lower body (below the buttocks) of the lying person (supporting the lower body from below).

The buttocks support 4 is fixed to the upper center of the base 2. Note that the buttocks support 4 is not limited to being made up of a single piece, and may be made up of multiple pieces.

The upper body support 5 is flexibly divided into a back support 7 for receiving the weight of the lower back (spine) of the reclining person below the shoulders (scapulae) (supporting the lower back (spine) of the reclining person below the shoulders (scapulae) from below), and a shoulder support 8 for receiving the weight of the upper shoulders and head of the reclining person above the shoulders (scapulae) (supporting the upper shoulders and head of the reclining person above the shoulders (scapulae) from below).

The back support 7 is composed of a pair of left and right back support frames 9,9 that extend forward and backward and are pivotally attached to the rear side of the base 2 (rearward of the buttocks support 4) so that they can rotate up and down, and a back base plate 10 attached to the upper part of the left and right back support frames 9,9. Note that the back base plate 10 is not limited to being composed of a single plate, and may be composed of multiple plates.

The shoulder support base 8 is composed of a pair of left and right shoulder support frames 11, 11 that extend forward and backward and are connected to the back support frames 9, 9 of the back support base 7 so that they can rotate up and down, and a shoulder base plate 12 attached to the top of the left and right shoulder support frames 11, 11. Note that the shoulder base plate 12 is not limited to being composed of a single plate, and may be composed of multiple plates.

The back support 7 and shoulder support 8 are flexibly connected by a bending position selection mechanism 13 provided between the rear end of each back support frame 9 and the front end of the shoulder support frame 11 to adjust the bending position (bending center) at which the back support 7 and shoulder support 8 are bent in a valley fold shape, forward and backward.

The lower body support 6 is flexibly divided into a thigh support 14 for receiving the weight of the thighs of a person lying down (supporting the thighs from below) and a lower leg support 15 for receiving the weight of the lower legs of a person lying down (supporting the lower legs from below)

The thigh support 14 is composed of a pair of left and right thigh support frames 16, 16 that extend forward and backward and are pivotally attached to the front side of the base 2 (in front of the buttock support 4) so that they can rotate up and down, and a thigh base plate 17 attached to the top of the left and right thigh support frames 16, 16. Note that the thigh base plate 17 is not limited to being composed of a single plate, and may be composed of multiple plates.

The lower leg support base 15 is composed of a pair of lower leg support frames 18, 18 extending forward and backward and connected to the thigh support frames 16, 16 of the thigh support base 14 so as to be freely rotatable up and down, and a lower leg base plate 19 attached to the upper part of the left and right lower leg support frames 18, 18. Note that the lower leg base plate 19 is not limited to being composed of a single plate, and may be composed of multiple plates.

The thigh support 14 and the lower leg support 15 are flexibly connected by a bending position selection mechanism 13 provided between each thigh support frame 16 and lower leg support frame 18 to adjust the bending position (bending center) of the thigh support 14 and the lower leg support 15 forward and backward so that they bend in a mountain fold shape.

The support base 3 is configured as described above, and the upper body support base 5 is connected to a back tilting mechanism 20 for tilting the back support base 7 (rotating the back support base 7 up and down relative to the base base 2) and a shoulder tilting mechanism 21 for tilting the shoulder support base 8 (rotating the shoulder support base 8 up and down relative to the back support base 7), while the lower body support base 6 is connected to a thigh tilting mechanism 22 for tilting the thigh support base 14 (rotating the thigh support base 14 up and down relative to the base base 2). The back tilting mechanism 20, shoulder tilting mechanism 21, and thigh tilting mechanism 22 are connected to a control mechanism (computer) 23. An operation switch 24 is connected to the control mechanism 23. In addition, the reclining bed 1 only needs to be provided with a mechanism for raising and lowering the back support 7, shoulder support 8, and thigh support 14. For example, the back support 7 and shoulder support 8 may be raised and lowered in conjunction with one raising and lowering mechanism.

In the reclining bed 1, the user (such as a reclining person or a caregiver) can operate the operation switch 24, which causes the control mechanism 23 to raise or lower the backrest mechanism 20, shoulder rest mechanism 21, and thigh rest mechanism 22, thereby setting the backrest support 7, shoulder rest 8, and thigh rest 14 to the desired inclination angle.

At this time, in the reclining bed 1, the bending position between the back support 7 and the shoulder support 8 and the bending position between the thigh support 14 and the lower leg support 15 can be adjusted forward and backward by the bending position selection mechanism 13.

As shown in Figures 3 and 4, the bending position selection mechanism 13 is provided between the support bases 3 (back support base 7, shoulder support base 8, thigh support base 14, and lower leg support base 15) that are arranged in a line in the direction of the height of the recumbent person. Note that while Figure 3 illustrates the bending position selection mechanism 13 provided between the back support base 7 and shoulder support base 8, the bending position selection mechanism 13 provided between the thigh support base 14 and lower leg support base 15 has a similar configuration.

This bending position selection mechanism 13 is rotatably provided between the rear ends of the left and right back support frames 9, 9 of the front back support base 7 with a rotation axis 25 that serves as the center of bending on the front side extending left and right, and is also rotatably provided between the front ends of the left and right shoulder support frames 11, 11 of the rear shoulder support base 8 with a rotation axis 26 that serves as the center of bending on the rear side extending left and right.

The bending position selection mechanism 13 also forms a through hole 27 extending left and right at the rear end of the front back support frames 9,9, and arranges the through hole 27 and the rotating shaft 25 in the same line in the front-to-back direction, and also forms a through hole 28 extending left and right at the front end of the rear shoulder support frames 11,11, and arranges the rotating shaft 26 and the through hole 28 in the same line in the front-to-back direction.

Furthermore, the bending position selection mechanism 13 connects the front back support frame 9, 9 and the rear shoulder support frame 11, 11 with plate-shaped connectors 29, 29 that extend in a straight line from front to rear.

The connecting body 29 has shaft holes 30, 31 arranged side by side in the front and rear for inserting the front and rear rotating shafts 25, 26, respectively, so that they can rotate freely. As a result, the connecting body 29 supports the front and rear rotating shafts 25, 26, respectively, so that they can rotate freely.

In addition, the connector 29 is formed with through-holes 32, 33 extending left and right in front of the front shaft hole 30 and behind the rear shaft hole 31. When the front and rear back support 7 and the rear shoulder support 8 are placed horizontally on the base 2 without being tilted or bent, the connecting holes 32, 33 are formed in positions where the connecting holes 32, 33 and the insertion holes 27, 28 communicate in a straight line from left to right, respectively matching (so that their positions match) the insertion holes 27 formed in the back support 7 and the insertion holes 28 formed in the shoulder support 8. A selection pin 34 is inserted into either of these connecting holes 32, 33 and the insertion holes 27, 28 in a connected state. This allows the front back support 7 or the rear shoulder support 8 to be selectively fixed to the connecting body 29 via a selection pin 34 inserted through one of the communication holes 32, 33 and the insertion holes 27, 28.

As shown in FIG. 4(a), the bending position selection mechanism 13 inserts the selection pin 34 through the insertion hole 27 provided in the back support frame 9 of the back support 7, which serves as the front support, and the front connecting hole 32 of the connecting body 29. When the back raising mechanism 20 raises the front back support 7 and the shoulder raising mechanism 21 raises the rear shoulder support 8, the back support frame 9 and the connecting body 29 are integrated via the selection pin 34, while the shoulder support frame 11 and the connecting body 29 of the shoulder support 8, which serves as the rear support, become rotatable around the rear rotating shaft 26, and the rear shoulder support 8 can be bent in a valley fold relative to the front back support 7 with the rear rotating shaft 26 as the bending center.

As shown in FIG. 4(b), the bending position selection mechanism 13 inserts the selection pin 34 through the insertion hole 28 provided in the shoulder support frame 11 of the shoulder support 8, which serves as the rear support, and the rear connecting hole 33 of the connecting body 29. When the front back support 7 is raised by the back tilting mechanism 20 and the rear shoulder support 8 is raised by the shoulder tilting mechanism 21, the shoulder support frame 11 and the connecting body 29 are integrated via the selection pin 34, while the back support frame 9 of the back support 7, which serves as the front support, and the connecting body 29 become rotatable around the front rotating shaft 25. This allows the rear shoulder support 8 to bend in a valley fold relative to the front back support 7, with the front rotating shaft 25 as the bending center.

In this way, the bending position selection mechanism 13 can select the rotation axis 25, 26 that serves as the bending center by using the insertion holes 27, 28 through which the selection pin 34 passes and the connection holes 32, 33, and can change the bending position forward or backward depending on the body type of the recumbent person, etc.

Similarly, as shown in FIG. 4(c), in the bending position selection mechanism 13 provided between the thigh support base 14 and the lower leg support base 15, when the selection pin 34 is inserted through the insertion hole 35 provided in the lower leg support frame 18 of the lower leg support base 15, which serves as the front support base, and through the front connecting hole 32 of the connecting body 29, the rear thigh support base 14 is raised by the thigh raising mechanism 21. The lower leg support frame 18 and the connecting body 29 are integrated via the selection pin 34, while the thigh support frame 16 of the thigh support base 14, which serves as the rear support base, and the connecting body 29 become rotatable around the rear rotating shaft 38. This allows the front lower leg support base 15 to be bent in a mountain fold relative to the rear thigh support base 14, with the rear rotating shaft 38 as the bending center.

As shown in FIG. 4(d), when the selection pin 34 is inserted through the insertion hole 36 provided in the thigh support frame 16 of the thigh support base 14, which serves as the rear support base, and the rear connecting hole 33 of the connecting body 29, the bending position selection mechanism 13 raises the rear thigh support base 14 using the thigh raising mechanism 21. This integrates the thigh support frame 16 and the connecting body 29 via the selection pin 34, while the lower leg support frame 18 and the connecting body 29 of the lower leg support base 15, which serves as the front support base, become rotatable around the front rotation shaft 37. This allows the front lower leg support base 15 to bend in a mountain fold relative to the rear thigh support base 14, with the front rotation shaft 37 as the bending center.

The bending position selection mechanism 13 has a connector 29 between the frames that make up the front and rear receiving tables 3, but a connector may also be provided between the base plates that make up the front and rear receiving tables 3. In addition, the bending position selection mechanism 13 is not limited to the above configuration as long as it can select the rotation axes 25, 26 that are the bending centers of the front and rear receiving tables 3 and change the bending position forward or backward.

For example, in the bending position selection mechanism 39 shown in Figures 5 and 6, rotation shafts 40, 41 are provided at the rear end of the back support frame 9 of the back support base 7, which serves as the front support base, and at the front end of the shoulder support frame 11 of the shoulder support base 8, which serves as the rear support base, respectively. Brackets 42, 43 are formed at the lower rear end of the back support frame 9 and the lower front end of the shoulder support frame 11, respectively, and insertion holes 44, 45 are formed in the brackets 42, 43.

In addition, in the bending position selection mechanism 39, the connecting body 46 is concave-shaped, and shaft holes 47, 48 are formed in the front and rear upper parts of the connecting body 46 that protrude upward, through which the front and rear rotating shafts 40, 41 are respectively inserted so as to be freely rotatable, and connecting holes 49, 50 are formed below the shaft holes 47, 48.

In this way, in the bending position selection mechanism 39, the rotating shafts 40, 41 (shaft holes 47, 48) and the insertion holes 44, 45 (connection holes 49, 50) are arranged vertically in a straight line with a front-to-back gap. As a result, in the bending position selection mechanism 39, the front-to-back length of the connector 46 can be shortened compared to the bending position selection mechanism 13 in which the rotating shafts 25, 26 (shaft holes 30, 31) and the insertion holes 27, 28 (connection holes 32, 33) are arranged in a straight line, and the distance between the front and rear back support 7 and the shoulder support 8 (lower leg support 15 and thigh support 14) can be narrowed, so that when the front and rear support 3 are bent, the body of the lying person can be well supported by the rear end edge of the front and rear back support 7 (lower leg support 15) and the front end edge of the shoulder support 8 (thigh support 14). In addition, the arrangement is not limited to the case where the rotating shafts 40, 41 (shaft holes 47, 48) are arranged in a straight line above the insertion holes 44, 45 (connection holes 49, 50), but the rotating shafts 40, 41 (shaft holes 47, 48) may be arranged in a straight line below the insertion holes 44, 45 (connection holes 49, 50). In addition, the rotating shafts 40, 41 (shaft holes 47, 48) and the insertion holes 44, 45 (connection holes 49, 50) are not limited to the case where they are arranged in a straight line above and below, but the insertion holes 44, 45 (connection holes 49, 50) may be arranged diagonally above or below the rotating shafts 40, 41 (shaft holes 47, 48).

As shown in FIG. 6(a), when a selection pin 51 is inserted through the insertion hole 44 provided in the back support frame 9 of the back support base 7, which serves as the front support base, and through the front connecting hole 49 of the connecting body 46, the bending position selection mechanism 39 can bend the rear shoulder support base 8 in a valley fold relative to the front back support base 7, with the rear rotation shaft 41 as the bending center. As shown in FIG. 6(b), when a selection pin 51 is inserted through the insertion hole 45 provided in the shoulder support frame 11 of the shoulder support base 8, which serves as the rear support base, and through the rear connecting hole 50 of the connecting body 46, the rear shoulder support base 8 can be bent in a valley fold relative to the front back support base 7, with the front rotation shaft 40 as the bending center. Similarly, as shown in FIG. 6(c), when a selection pin 51 is inserted through an insertion hole 52 provided in the lower leg support frame 18 of the lower leg support base 15, which serves as the front support base, and through a front connecting hole 49 of the connector 46, the front lower leg support base 15 can be bent in a mountain fold relative to the rear thigh support base 14, with the rear rotation shaft 55 as the bending center. As shown in FIG. 6(d), when a selection pin 51 is inserted through an insertion hole 53 provided in the thigh support frame 16 of the thigh support base 14, which serves as the rear support base, and through a rear connecting hole 50 of the connector 46, the front lower leg support base 15 can be bent in a mountain fold relative to the rear thigh support base 14, with the front rotation shaft 54 as the bending center.

In addition, in the bending position selection mechanism 56 shown in Figures 7 and 8, insertion holes 57, 58 are formed in the rear end of the back support frame 9 of the back support base 7, which serves as the front support base, and in the front end of the shoulder support frame 11 of the shoulder support base 8, which serves as the rear support base, respectively. Brackets 59, 60 are formed at the lower rear end of the back support frame 9 and the lower front end of the shoulder support frame 11, respectively, and rotating shafts 61, 62 are provided on the brackets 59, 60.

In addition, in the bending position selection mechanism 56, connecting bodies 64, 64 are formed at the left and right ends of the auxiliary support 63, which is disposed between the front and rear back support 7 and the shoulder support 8 to support the body of a person lying down. Each connecting body 64 is formed by bending the end of the auxiliary support 63, which extends left and right, forward and backward, and the upper part of the front and rear bent pieces has shaft holes 65, 66 through which the front and rear rotation shafts 61, 62 are respectively inserted so as to be freely rotatable, and the lower part of the shaft holes 65, 66 has connecting holes 67, 68.

In this way, in the bending position selection mechanism 56, the auxiliary support 63 is provided on the connecting body 64. As a result, in the bending position selection mechanism 56, when the front and rear support 3 are bent, the auxiliary support 63 can close the gap between the rear end edge of the front and rear back support 7 (lower leg support 15) and the front end edge of the shoulder support 8 (thigh support 14), so that the auxiliary support 63 can adequately support the body of the lying person when the front and rear back support 7 (lower leg support 15) and shoulder support 8 (thigh support 14) are bent.

As shown in FIG. 8(a), when a selection pin 69 is inserted through the insertion hole 57 provided in the back support frame 9 of the back support base 7, which serves as the front support base, and through the front connecting hole 67 of the connecting body 64, the bending position selection mechanism 56 can bend the rear shoulder support base 8 in a valley fold relative to the front back support base 7, with the rear rotation shaft 62 as the bending center. As shown in FIG. 8(b), when a selection pin 69 is inserted through the insertion hole 58 provided in the shoulder support frame 11 of the shoulder support base 8, which serves as the rear support base, and through the rear connecting hole 68 of the connecting body 64, the rear shoulder support base 8 can be bent in a valley fold relative to the front back support base 7, with the front rotation shaft 61 as the bending center. Similarly, as shown in FIG. 8(c), when a selection pin 69 is inserted through an insertion hole 70 provided in the lower leg support frame 18 of the lower leg support 15, which serves as the front support, and through a front connecting hole 67 of the connector 64, the front lower leg support 15 can be bent in a mountain fold relative to the rear thigh support 14, with the rear rotation shaft 73 as the bending center. As shown in FIG. 8(d), when a selection pin 69 is inserted through an insertion hole 71 provided in the thigh support frame 16 of the thigh support 14, which serves as the rear support, and through a rear connecting hole 68 of the connector 64, the front lower leg support 15 can be bent in a mountain fold relative to the rear thigh support 14, with the front rotation shaft 72 as the bending center.

As explained above, in the reclining bed, the support platforms 3 (back support platform 7, shoulder support platform 8, lower leg support platform 15 and thigh support platform 14) that support the body of a person lying down are arranged front to back in the direction of the height of the person lying down, and the front and rear support platforms 3 (back support platform 7, shoulder support platform 8, lower leg support platform 15 and thigh support platform 14) are flexibly connected by connectors 29 (46, 64). The connecting body 29 (46, 64) rotatably supports the rotation shafts 25, 26 (37, 38, 40, 41, 54, 55, 61, 62, 72, 73) that serve as the bending centers provided on the front and rear support bases 3 (the back support base 7 and the shoulder support base 8, the lower leg support base 15 and the thigh support base 14), respectively, and provides connecting holes 32, 33 (49, 50, 67, 68) on the front and rear that match the insertion holes 27, 28 (35, 36, 44, 45, 52, 53, 57, 58, 70, 71) provided on the front and rear support bases 3 (the back support base 7 and the shoulder support base 8, the lower leg support base 15 and the thigh support base 14), respectively. By connecting the connecting holes 32, 33 (49, 50, 67, 68) to the insertion holes 27, 28 (35, 36, 44, 45, 52, 53, 57, 58, 70, 71) provided in either the front or rear support 3 (back support 7 and shoulder support 8, lower leg support 15 and thigh support 14) with the selection pin 34 (51, 69), it is possible to select either the front or rear rotation axis 25, 26 (37, 38, 40, 41, 54, 55, 61, 62, 72, 73) that serves as the bending center for bending the front or rear support 3 (back support 7 and shoulder support 8, lower leg support 15 and thigh support 14).

Therefore, in the reclining bed 1 configured as described above, the front and rear rotation shafts 25, 26 (37, 38, 40, 41, 54, 55, 61, 62, 72, 73) that serve as the bending center are provided in advance on the connecting body 29 (46, 64), and either the front or rear rotation shaft 25, 26 (37, 38, 40, 41, 54, 55, 61, 62, 72, 73) can be easily selected using only the selection pin 34 (51, 69) without removing the connecting body 29 (46, 64). This improves the workability required to change the bending position of the reclining bed 1, and also reduces costs by reducing the number of parts and simplifying the part shapes.

The reclining bed 1 is configured such that the front and rear rotation shafts 40, 41 (61, 62) and the connecting holes 49, 50 (67, 68) of the connecting body 46 (64) are arranged above and below, respectively.

Therefore, in the reclining bed 1 configured as described above, the length of the connecting member 46 (64) from front to rear can be shortened, and the distance between the front and rear support bases 3 (back support base 7 and shoulder support base 8, lower leg support base 15 and thigh support base 14) can be narrowed, so that when the front and rear support bases 3 (back support base 7 and shoulder support base 8, lower leg support base 15 and thigh support base 14) are bent, the body of the person lying down can be well supported by the edges of the front and rear support bases 3 (back support base 7 and shoulder support base 8, lower leg support base 15 and thigh support base 14), making the reclining bed 1 comfortable to use.

The reclining bed 1 is also configured with an auxiliary support 63 on the connecting body 64, which is placed between the front and rear support 3 (back support 7 and shoulder support 8, and lower leg support 15 and thigh support 14) to support the body of a person lying down.

Therefore, in the reclining bed 1 configured as described above, the gaps between the front and rear support bases 3 (back support base 7 and shoulder support base 8, lower leg support base 15 and thigh support base 14) can be filled with the auxiliary support base 63, so that the body of a person lying down can be well supported by the auxiliary support base 63 when the front and rear support bases 3 (back support base 7 and shoulder support base 8, lower leg support base 15 and thigh support base 14) are bent, which also makes the reclining bed 1 comfortable to use.

In addition, when connecting a pair of left and right arms using the selection pin 34 (51, 69), if different rotation axes 25, 26 (37, 38, 40, 41, 54, 55, 61, 62, 72, 73) are mistakenly selected for the left and right, and the front and rear support bases 3 (back support base 7 and shoulder support base 8, lower leg support base 15 and thigh support base 14) are bent without realizing it, the connector 29 (46, 64) may be plastically deformed due to twisting, and there is a concern that the selection pin 34 (51, 69) may become stuck or the connection using the selection pin 34 (51, 69) may no longer be possible. In order to prevent the connector 29 (46, 64) and the support frame (back support frame 9, shoulder support frame 11, lower leg support frame 18, thigh support frame 16) from being plastically deformed when these incorrect selection pins 34 (51, 69) are attached, at least one of the connector 29 (46, 64) and the end (around the insertion holes 27, 28 (35, 36, 44, 45, 52, 53, 57, 58, 70, 71)) of the support frame (back support frame 9, shoulder support frame 11, lower leg support frame 18, thigh support frame 16) is made of an elastic material (spring steel or flexible resin material such as polypropylene) that can absorb twisting caused by elastic deformation, or the connector provided on the connector 29 (46, 64) is made of an elastic material that can absorb twisting caused by elastic deformation, such as spring steel or flexible resin material such as polypropylene, such as spring steel or ... In order to absorb the twisting that occurs in the connection between the holes 32, 33 (49, 50, 67, 68) and the through holes 27, 28 (35, 36, 44, 45, 52, 53, 57, 58, 70, 71) provided in the support base 3 (back support base 7 and shoulder support base 8, lower leg support base 15 and thigh support base 14) without causing plastic deformation of each component, it is effective to provide a clearance in relation to the diameter of the connection holes 32, 33 (49, 50, 67, 68) and the through holes 27, 28 (35, 36, 44, 45, 52, 53, 57, 58, 70, 71) and the shaft diameter of the selection pin 34 (51, 69), and further to use elastically deformable materials such as spring steel or flexible resin materials such as polypropylene for the spacers and collars used for these clearances.

In addition, when connecting a pair of left and right pins using the selection pins 34 (51, 69), there is a concern that the selection pins 34 (51, 69) may come out of the connection holes 32, 33 (49, 50, 67, 68) or the insertion holes 27, 28 (35, 36, 44, 45, 52, 53, 57, 58, 70, 71). Therefore, it is preferable to provide a selection pin fall-out prevention mechanism to prevent the selection pins 34 (51, 69) from falling out. For example, a selection pin fall-out prevention mechanism using a screw part or other means may be provided in the connection holes 32, 33 (49, 50, 67, 68) or the insertion holes 27, 28 (35, 36, 44, 45, 52, 53, 57, 58, 70, 71), or a fall-out prevention mechanism such as a protrusion having elasticity may be provided in the middle of the selection pins 34 (51, 69).

REFERENCE SIGNS LIST 1 Reclining bed 2 Base 3 Support 4 Buttock support 5 Upper body support 6 Lower body support 7 Back support 8 Shoulder support 9 Back support frame 10 Back support plate
11 shoulder support frame 12 shoulder base plate
13 bending position selection mechanism 14 thigh support
15 Lower leg cradle 16 Thigh support frame
17 Thigh base plate 18 Lower leg support frame
19 Lower leg base plate 20 Back tilting mechanism
21 Shoulder lifting mechanism 22 Thigh lifting mechanism
23 Control mechanism 24 Operation switch
25,26 Rotating shaft 27,28 Insertion hole
29 Connector 30, 31 Shaft hole
32,33 Connection hole 34 Selection pin
35,36 Insertion hole 37,38 Rotation axis
39 Bending position selection mechanism 40, 41 Rotation axis
42,43 Bracket 44,45 Insertion hole
46 Connector 47, 48 Shaft hole
49,50 Connection hole 51 Selection pin
52,53 Insertion hole 54,55 Rotation axis
56 Bending position selection mechanism 57, 58 Insertion hole
59,60 Bracket 61,62 Rotation axis
63 Auxiliary support 64 Connector
65,66 Shaft hole 67,68 Connection hole
69 Selection pin 70,71 Insertion hole
72,73 Rotation axis

Claims (3)

A reclining bed in which support bases for supporting the body of a reclining person are arranged in a front-to-back manner along the height direction of the reclining person, and the front and rear support bases are flexibly connected by a connector,
This reclining bed is characterized in that the connecting body rotatably supports a rotating shaft provided on either the front or rear receiving base, which serves as the bending center for bending the front or rear receiving bases, and has a connecting hole that matches the insertion hole provided on the front or rear receiving bases.By connecting the connecting hole to the insertion hole provided on either the front or rear receiving base with a selection pin, the bending center for bending the front or rear receiving bases can be changed to the rotating shaft provided on either the front or rear receiving base, and the bending center for bending the front or rear receiving bases can be changed to front or rear. The reclining bed according to claim 1, characterized in that the connecting body has a rotating shaft and a connecting hole arranged above and below, respectively. The reclining bed according to claim 1 or 2, characterized in that the connecting body has an auxiliary support placed between the front and rear supports to support the body of a person lying down.

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