JP5310228B2 - Blood collection table - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a small-sized blood collecting base capable of automatically winding a sheet covering a support surface. <P>SOLUTION: The blood collecting base 10 includes a support base 11 provided with a support surface capable of supporting the arm of a person from whom blood is collected, a sheet roll 17 on which a belt-like sheet 12 for covering the support surface is wound in a roll shape, a roll housing part 50 provided on the side of a first end 25, a sheet winding part 18 provided on the side of a second end 26 and provided with a rotary shaft 13, and a motor 90 for rotating the rotary shaft 13. The rotary shaft 13 to be rotated by drive transmission from the motor 90 winds the sheet 12 after use, the sheet 12 is automatically pulled out to the support surface from the sheet roll 17 housed in the roll housing part 50 accompanying that, and the motor 90 is stopped when the sheet 12 is pulled out by a prescribed interval. Thus, when collecting blood for two or more times, the sheet 12 covering the support surface is automatically wound. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a blood collection table that is placed on a table for blood collection and supports the body arm of the blood sampled person, and more particularly to a blood collection table in which a support surface that supports the arm is covered with a sheet.

  In blood collection performed for a blood test or the like, a blood collection needle attached to a syringe or a vacuum blood collection tube holder is pierced until it reaches a vein in the arm of the blood collection subject. At that time, a blood collection table is used to stably place the arm through which the blood collection needle is inserted. This blood collection table has various forms such as a pillow-shaped table placed on a work table or the like and a table provided with legs that can be placed on the floor (for example, Patent Documents 1 to 5).

  In the conventional blood collection table, the member on which the arm of the blood sample is placed is composed of a relatively soft member such as a cushion material, and the support surface that comes into contact with a part of the body in the member such as the cushion material is hygienic. From a general viewpoint, it is covered with a cover material such as cloth (for example, Patent Document 3).

JP 2007-44443 A JP-A-8-266519 JP 2006-187466 A JP 2006-68224 A Utility Model No. 3104383

  For example, a portable and compact blood collection table is suitable for blood collection for medical examinations in the workplace and blood collection in hospital wards. Therefore, relatively large ones such as the blood collection bed shown in Patent Document 1 and the blood collection table with a support table shown in Patent Document 2 are unsuitable.

  In addition, when blood collection is continuously performed from a large number of blood collection subjects in a health examination or the like, a blood collection table may be reused for a plurality of blood collection subjects. In blood collection, blood may be scattered on the blood collection table. Reuse of a blood collection table to which another person's blood is attached is not only unsanitary but may be an infection route for infectious diseases. Even if blood is not attached, it is difficult to say that it is hygienic that a blood collection table in contact with another person's body is reused as it is. However, each time a blood sample is changed, the cost required for blood collection increases if the blood collection table is replaced or the blood collection table is made disposable. Moreover, the operation | work which replaces | covers a cover material for every blood collection is complicated, and a blood collection operation becomes inefficient.

  Patent Document 3 discloses a blood collection table capable of winding a cover, but it is not clear how the cover after use is handled. If the cover after use is separated and thrown away, the cover after use must be cut and thrown away every time the blood sample is changed, and the work is complicated. Moreover, since the separated cover is bulky, a large-capacity medical trash can is required. Furthermore, in this blood collection table, when replacing the roll cover or the folding cover, the upper member of the blood collection table is removed or the blood collection table is turned over. The operation of removing the upper member of the blood collection table is complicated in the middle of performing a large number of blood collections. Also, if the blood collection table is turned over, the cover that is contaminated by blood and comes into contact with the mounting surface such as a desk is not preferable. In addition, since the new cover comes in contact with the mounting surface such as a desk, it is necessary to replace the portion in contact with the mounting surface when using it, which increases the number of work steps and wastes a part of the cover. Become.

  The present invention has been made in view of these circumstances, and an object thereof is to provide a small blood collection table for automatically winding a sheet covering a support surface.

  (1) A blood collection table according to the present invention is a roll-shaped support table having a support surface capable of supporting the blood collection subject's arm in a state of being placed on a table, and a belt-like sheet covering the support surface. A sheet roll wound around, a roll accommodating portion that is provided on a first end side of the support base and accommodates a sheet so that the sheet can be pulled out from the sheet roll, and a first side opposite to the first end of the support base. A sheet take-up unit that is provided at two ends and has a rotary shaft that winds up the sheet covering the support surface; and a drive source for rotating the rotary shaft of the sheet take-up unit. .

  The blood collection table according to the present invention is used by being placed on a table. The tabletop means a worktable or a tabletop for collecting blood. The blood collection table placed on the table supports the arm of the blood collection subject during blood collection. The support surface that supports the arm is a part of the support table, and is generally the upper surface of the support table. This support surface is covered with a belt-like sheet. The band-shaped sheet is, for example, a sheet made of cloth, paper, or other material capable of absorbing blood, and has a width that can substantially cover the support surface of the support base, and is sufficiently longer than the support surface. is there. The belt-like sheet may be used repeatedly by washing or the like, but is preferably disposable from the viewpoint of hygiene and prevention of infection.

  The belt-like sheet is accommodated in the roll accommodating portion as a sheet roll wound in a roll shape. The sheet pulled out from the roll accommodating portion covers the support surface and extends from the first end to the second end. The sheet covering the support surface is wound on the rotating shaft of the sheet winding unit on the second end side.

  When the blood collection table is used, the blood collection person's arm is supported on the support surface covered with the sheet. Then, after blood collection is performed, drive is transmitted from the drive source to rotate the rotating shaft. An example of the drive source is a motor. The sheet covering the support surface is wound around the sheet winding unit by the rotation of the rotating shaft. Along with the winding of the sheet, an unused portion of the sheet is supplied from the roll accommodating portion to the support surface to cover the support surface. Therefore, the blood collection person's arm is always supported by the support surface covered with a new sheet.

  (2) A blood collection table according to the present invention includes an input receiving unit for driving the driving source, a control unit for driving the driving source based on the fact that the input receiving unit receives an input of driving start, May further be provided.

  For example, when a switch is provided as the input receiving unit, when the switch is pressed after blood collection is completed, the drive source operates to rotate the rotation shaft, and the sheet covering the support surface is wound around the sheet winding unit.

  (3) The input receiving unit may be a pressure-sensitive sensor that is provided on the support base and detects the placement of the blood collection subject's arm.

  The pressure-sensitive sensor detects a pressure by the blood collection person's arm placed on the support base and outputs a detection signal. For example, when the blood collection person's arm is placed on the support table, the pressure is detected and the pressure sensor outputs an ON signal, and if the blood collection person's arm is not placed on the support stage, The pressure sensor outputs an OFF signal without detecting any pressure. The control unit operates the drive source at the timing when the output signal from the pressure sensor is switched from the ON signal to the OFF signal. As a result, when the blood collection is completed and the arm of the blood sample is separated from the support base, the sheet is automatically wound up.

  (4) In the sheet roll, a detected portion is written at an interval corresponding to a distance between the first end and the second end facing each other on the support base with respect to the longitudinal direction, and the control unit May stop the drive source based on detection of the detected part by a sensor arranged at a position covered by the sheet.

  When the sensor detects the detected portion of the sheet, the control unit stops driving of the drive source. In the sheet, since the detected parts are written at a predetermined interval, a new sheet is pulled out to the support surface by the predetermined interval. This predetermined interval is set to be approximately the same as the distance between the first end and the second end of the support base, for example. Thus, when the support surface is covered with a new sheet, the rotation shaft is automatically stopped.

  (5) The blood collection table according to the present invention may further include a drive transmission mechanism that transmits drive from the drive source to the rotary shaft, and a handle for manually rotating the rotary shaft. Good. The drive transmission mechanism releases the drive transmission between the drive source and the rotary shaft, the first drive transmission state in which the drive source and the rotary shaft are connected so as to be able to transmit the drive, and the handle and the rotary shaft. The state is changed to a second drive transmission state where the two are connected so as to be capable of drive transmission.

  The drive transmission mechanism in the first drive transmission state transmits drive from the drive source to the rotating shaft as described above. When the drive transmission mechanism is set to the second drive transmission state, the drive transmission path from the drive source to the rotation shaft is cut, so that the rotation shaft can freely rotate. Further, since drive transmission from the handle to the rotary shaft is possible, the rotary shaft is rotated by operating the handle. Thereby, automatic sheet winding by the drive source and manual sheet winding by the handle operation are realized.

  (6) As the drive transmission mechanism, a first transmission gear provided so as to be able to transmit drive from the drive source, a second transmission gear provided so as to be able to transmit drive from the handle, and capable of transmitting drive to the rotating shaft. Examples include a sun gear provided and a planetary gear that circulates around the sun gear and can selectively mesh with the first transmission gear or the second transmission gear.

  (7) A blood collection table according to the present invention includes a lever that positions the planetary gear at a first position where the planetary gear meshes with the first transmission gear and a second position where the planetary gear meshes with the second transmission gear. There may be.

  By operating the lever, automatic winding and manual winding are switched.

  (8) The sheet winding portion is open to the second end of the support base and extends toward the first end, and a bearing groove into which the rotating shaft can be fitted from the opening; A locking member which is provided in a bearing groove and has a locking posture for positioning the rotating shaft with respect to the opening side, and a locking member whose posture is changed to an unlocking posture in which the rotating shaft can be inserted into and removed from the opening. You may do. The change in the posture of the lock member is linked to the lever, and the lever is in the locked posture when the planetary gear is in the first position, and is unlocked when the planetary gear is in the second position. The lock posture is assumed.

  When the rotating shaft winds the sheet, even if a force in the direction toward the opening of the bearing groove is applied to the rotating shaft through the sheet, the locking member in the locking posture positions the rotating shaft in the bearing groove. Does not come off the bearing groove. Further, when the lock member is in the unlocked posture, the rotation shaft can be removed from the bearing groove.

  Since the above-described change in the posture of the lock member is linked to the operation of the lever, the rotary shaft is locked during automatic winding. For example, when the sheet roll is replaced, the rotary shaft is removed from the bearing groove. It can be removed, and the rotating shaft is rotated by a handle operation.

  (9) The lock member is provided at the back of the bearing groove so as to be rotatable between a first rotation position and a second rotation position, and the rotation shaft is rotatably supported in the inner space thereof. In addition, there is a donut board having an introduction groove in which the inner space and the bearing groove are continuous at either one of the first rotation position and the second rotation position.

  (10) Examples of the lever include one that extends from the donut board and rotates the donut board.

  (11) The support base includes an elastic deformation member having the support surface, a support plate for supporting the elastic deformation member, and a base body having a pair of legs extending downward from the support plate. It may be provided. The bearing groove is provided in each of the pair of legs.

  The elastic deformation member is made of, for example, a sponge or a low-resilience polyurethane. By configuring the support surface with this elastic deformation member, it is possible to give a soft touch with little pain to the arm of the blood sample. The elastic deformation member is supported by a support plate, and the support plate is supported at a predetermined height on a work table by a pair of legs. The rotating shaft is rotatable with both ends in the axial direction supported by a pair of leg portions, respectively. In other words, the rotation shaft is installed on the pair of leg portions below the support plate. Thereby, the blood collection table can be reduced in size by using the space below the support plate as the accommodation space for the belt-shaped sheet wound around the rotation shaft.

  (12) As the roll accommodating portion, an opening is opened at the first end of the support base, and the accommodation space in which the sheet roll can be loaded through the opening and the opening in the accommodation space are closed except for a slit from which the sheet can be pulled out. And a lid.

  (13) The sensor may be provided in the roll housing unit.

  By providing the sensor in the accommodation space that can be closed by the lid, for example, the detected portion of the sheet can be reliably detected by the optical sensor. For example, even if a contact-type sensor is used, since the sensor comes into contact with an unused sheet, there is no possibility that blood adhering to the sheet is transferred to the sensor.

  (14) The control unit may include a counter that counts the number of times the sensor detects the detected part, and may determine the remaining amount of the sheet roll based on the count number of the counter. .

  Thereby, the user can be notified of the remaining amount of the sheet roll.

  (15) The control unit has a timer for measuring a time from when the drive source is driven until the sensor detects the detected portion, and when the timer measures a predetermined time or more, an error is generated. You may notify.

  As a result, when the sheet roll runs out or when the sheet is jammed, it is recognized as an error.

  (16) In the present invention, the sheet is pulled out from the sheet roll accommodated in the roll accommodating portion to the support surface, the sheet is wound around the rotation shaft, and the rotation shaft that is driven and transmitted from the drive source is rotated. A sheet roll used in a blood collection table in which a sheet is wound around a rotating shaft and a new sheet is drawn from the sheet roll to the support surface, and a belt-like sheet is wound into a roll shape. And it may be grasped as a sheet roll in which a part to be detected which can be detected by a sensor provided in the blood collection table at a predetermined interval with respect to the longitudinal direction.

  (17) Examples of the detected part include those that can be detected by an optical sensor.

  (18) Examples of the detected part include those described on the surface facing the support surface.

  As a result, the blood collection person's arm or the like does not contact the detected part.

  According to the present invention, the rotating shaft that is rotated by driving transmission from the drive source winds up the used sheet, and the sheet is automatically pulled out from the sheet roll accommodated in the roll accommodating portion to the support surface. Since the drive source is stopped when the sheet is pulled out by a predetermined interval, the sheet covering the support surface is automatically wound up during a plurality of blood collections.

FIG. 1 is a perspective view showing an external configuration of a blood collection table 10 according to an embodiment of the present invention. FIG. 2 is a rear view showing the external configuration of the blood collection table 10 on the first end 25 side. FIG. 3 is a perspective view showing the blood collection table 10 in a state where the lid 52 is opened. FIG. 4 is an exploded perspective view of the blood collection table 10. FIG. 5 is a central sectional view of the blood collection table 10. FIG. 6 is a perspective view showing a state in which the manual handles 121 and 122 are removed from the blood collection table 10. FIG. 7 is a perspective view showing the manual handles 121 and 122. FIG. 8 is a central sectional view of blood collection table 10. FIG. 9 is a side view of the blood collection table 10. FIG. 10 is a side view of the blood collection table 10. FIG. 11 is a bottom view showing the sheet 12. FIG. 12 is a block diagram illustrating a configuration of the control unit 140. FIG. 13 is a flowchart showing the operation of the blood collection table 10.

  Hereinafter, preferred embodiments of the present invention will be described. In addition, this embodiment is only one embodiment of this invention, and it cannot be overemphasized that an embodiment can be changed in the range which does not change the summary of this invention.

[Schematic configuration of blood collection table 10]
As shown in FIG. 1, the blood collection table 10 has a size that can be placed on a work table or a desk on which blood is collected, and a blood collection person's arm is placed on the blood collection table 10 during blood collection. This blood collection table 10 includes a support table 11, a rotating shaft 13, and a motor 90 (see FIG. 4). 2 to 5 show the blood collection table 10 in a state where the sheet roll 17 and the manual handles 121 and 122 are removed.

[Support 11]
As shown in FIGS. 1, 4, and 5, the support base 11 mainly includes a base body 20 and an elastic deformation member 21 supported by the base body 20. The base body 20 includes a support plate 22 serving as a top plate and a pair of leg portions 23 and 24. The support plate 22 is a flat plate that is rectangular in plan view. A pair of legs 23 and 24 extending in the vertical direction are provided on both edges forming a pair of long sides in the support plate 22. The pair of leg portions 23, 24 is provided over each long side of the support plate 22. The support plate 22 and the leg portions 23 and 24 are integrally formed as one member. The pair of leg portions 23, 24 protrude in the vertical direction from both edges that are the long sides of the support plate 22. The support plate 22 is supported at a predetermined height from the upper surface of the work table or the like by the pair of leg portions 23 and 24. As shown in FIG. 5, below the support plate 22 is a space in which the sheet roll 17 is accommodated.

  In a state where the support base 11 is placed on the work table, the support plate 22 is inclined along the long side direction. An end on the inclined side of the support plate 22 is referred to as a first end 25. An end that faces the first end 25 and is inclined downward is referred to as a second end 26. That is, the upper surface of the support plate 22 is an inclined surface that descends from the first end 25 toward the second end 26 along the long side direction. In the present specification, each member constituting the support base 11 may also be referred to as the first end 25 side and the second end 26 side, but these are the first end 25 and the second end of the support plate 22. The side where the two ends 26 are located is shown. Although not shown in each figure, if a member having a high coefficient of static friction such as rubber is provided on the bottom surfaces of the pair of leg portions 23 and 24, the support base 11 does not slip on the upper surface of the work table or the like, which is preferable. It is.

  Although the magnitude | size of the support stand 11 is not specifically limited, It sets to the magnitude | size suitable for blood collection. Further, considering the carrying of the blood collection table 10 and the like, it is preferable that the size is small. Furthermore, the space below the support plate 22 is set so as to accommodate the sheet roll 17 having a length suitable for the number of blood collecting persons and the wound sheet 12. The inclination of the support plate 22 is set at an angle suitable for the blood sample to place the arm on the elastic deformation member 21 with the wrist below the elbow. For example, if the sheet 12 is exchanged for every 100 blood samples, the diameter of a general cloth sheet roll 17 is about 65 mm when a paper tube 89 having a diameter of 25 mm (see FIG. 8) is included. Then, considering the accommodation of the sheet roll 17 and the convenience of blood collection work, the height of the support plate 22 at the first end 25 of the support base 11 is about 130 mm from the desktop, and the support plate at the second end 26 of the support base 11 As an example, the height of 22 is about 80 mm from the desktop.

  On the first end 25 side of the leg portions 23 and 24, shaft holes 27 and 28 for rotatably supporting shafts 56 and 57 (see FIG. 4) of the lid 52 described later are provided, respectively. In FIG. 4, the shaft hole 27 formed in the leg portion 23 and the shaft 56 of the lid 52 do not appear, but the shaft hole 27 is symmetrical with the shaft hole 28, and the shaft 56 is symmetrical with the shaft 57. Shape. The shaft holes 27 and 28 respectively penetrate the leg portions 23 and 24 in the thickness direction, and the respective axis lines are on the same imaginary straight line. The shafts 56 and 57 are fitted into the shaft holes 27 and 28, respectively, so that the lid 52 can be freely opened and closed.

  On the second end 26 side of the leg portions 23 and 24, bearing grooves 29 and 30 for rotatably supporting a rotating shaft 13 described later are provided, respectively. The bearing grooves 29 and 30 have slit shapes penetrating the leg portions 23 and 24 in the thickness direction. The bearing grooves 29 and 30 are opened to the second end 26 side of the leg portions 23 and 24 below the support plate 22 and extend in the horizontal direction toward the first end 25 side. The openings of the bearing grooves 29 and 30 are arranged at a height position that is the center of the lower part of the leg portions 23 and 24 from the support plate 22. The width in the vertical direction in the vicinity of the openings of the bearing grooves 29 and 30 is substantially the same as the outer diameter of the rotating shaft 13. In addition, lock bearing portions 31 and 32 having an inner diameter larger than the width in the vicinity of the opening are provided at the back of each bearing groove 29 and 30 (on the side opposite to the opening). The axis lines of the lock receiving portions 31 and 32 coincide with each other. Lock members 15 and 16 are rotatably fitted in the lock receiving portions 31 and 32, respectively.

  Support shaft guide grooves 37 and 38 are formed around the lock receiving portions 31 and 32 of the leg portions 23 and 24. Each support shaft guide groove 37, 38 is an arc centered on the lock receiving portions 31, 32, and penetrates the leg portions 23, 24 in the thickness direction. The ranges of the support shaft guide grooves 37 and 38 are set corresponding to the movement ranges of the planetary gears 107 and 108 described later. In FIG. 4, the support shaft guide groove 37 provided in the leg portion 23 does not appear, but the support shaft guide groove 38 provided in the leg portion 24 has a target shape.

  As shown in FIG. 4, exterior materials 33 and 34 are provided outside the leg portions 23 and 24. Each of the exterior members 33 and 34 has a shape that covers all the outer surfaces of the leg portions 23 and 24. Accordingly, the corresponding leg portions 23 and 24 and the exterior materials 33 and 34 in the side view have the same shape. Bearing grooves 35 and 36 are formed in the respective exterior members 33 and 34 so as to correspond to the bearing grooves 29 and 30 of the leg portions 23 and 24. The bearing grooves 35 and 36 are integrated with the bearing grooves 29 and 30 in a state where the exterior members 33 and 34 are provided in the corresponding leg portions 23 and 24. Therefore, since the shape of the bearing grooves 35 and 36 is the same as the shape of the bearing grooves 29 and 30 described above, detailed description is omitted here.

  As shown in FIG. 4, lock lever guide grooves 39, 40 that extend linearly upward from the lock receiving portions 31, 32 are formed on the outer surfaces of the exterior members 33, 34, respectively. . Lock levers 125 and 126 (see FIG. 7) of manual handles 121 and 122 described later are fitted into the lock lever guide grooves 39 and 40, respectively. The lock lever guide grooves 39 and 40 are grooves recessed from the outer surfaces of the respective exterior members 33 and 34. In FIG. 4, the lock lever guide groove 39 provided in the exterior material 33 does not appear, but it has a target shape with the guide groove 40 in the exterior material 34.

  In the exterior materials 33 and 34, through holes 41 and 42 are formed in the thickness direction at the extending ends of the lock lever guide grooves 39 and 40, respectively. The through holes 41 and 42 support the lock levers 125 and 126 of the manual handles 121 and 122. The lock levers 125 and 126 of the manual handles 121 and 122 supported by the through holes 41 and 42 are fitted into the bearing grooves 35 and 36 and the lock lever guide grooves 39 and 40, respectively. In FIG. 4, the through-hole 41 provided in the exterior material 33 does not appear, but the through-hole 42 in the exterior material 34 has a target shape.

  Operation lever guide grooves 43 and 44 are formed around the inner portions of the bearing grooves 35 and 36 in the exterior materials 33 and 34. Each of the operation lever guide grooves 43 and 44 is an arc centering on the inner part of the bearing grooves 35 and 36 and penetrates the exterior materials 33 and 34 in the thickness direction. The range of the operation lever guide grooves 43 and 44 is set corresponding to the movement range of the levers 72 and 73 of the lock members 15 and 16 described later.

  A power switch 45 is provided near the lower end of the exterior material 34. The power switch 45 is electrically connected to the control unit 140. When the power switch 45 is pressed, a predetermined electrical signal is transmitted to the control unit 140. The electric signal transmitted from the power switch 45 is recognized by the control unit 90 as a command for switching the power supply of the apparatus to an on state or an off state.

  An input switch 46 is provided at the upper end of the exterior material 34. The input switch 46 is electrically connected to the control unit 140. When the input switch 46 is pressed, a predetermined electrical signal is transmitted to the control unit 140. The electric signal transmitted from the input switch 46 is recognized by the control unit 90 as a command for driving the motor.

  LEDs 47 and 48 are provided at the upper end of the exterior member 33. The LEDs 47 and 48 have different emission colors such as orange and green. The LEDs 47 and 48 are electrically connected to the control unit 140. The control unit 140 causes the LEDs 47 and 48 to emit light in a predetermined pattern in order to notify the power-on state, the remaining sheet amount, an error, and the like.

  As shown in FIG. 4, the elastic deformation member 21 is detachably fixed to the upper surface of the support plate 22. The elastic deformation member 21 is a flat plate having a rectangular shape in plan view, and has an outer dimension substantially equal to the outer dimension of the support plate 22. The elastic deformation member 21 is made of low-resilience urethane, and can be elastically deformed so as to contract the volume against an external force. Such an elastic deformation member 21 is fixed to the upper surface of the support plate 22 so that both ends (small face surfaces) in the long side direction are aligned with the first end 25 and the second end 26 of the support plate 22. Although not shown in the figure, the elastic deformation member 21 and the support plate 22 are connected by a hook-and-loop fastener, and the elastic deformation member 21 can be attached to and detached from the support plate 22. The upper surface of the elastic deformation member 21 fixed to the support plate 22 serves as a support surface capable of supporting the blood collection subject's arm during blood collection. The thickness of the elastic deformation member 21 is constant with respect to the long side direction, and the upper surface of the elastic deformation member 21 is inclined along the upper surface of the support plate 22.

[Roll accommodating part 50]
As shown in FIG. 5, a roll accommodating portion 50 is provided on the first end 25 side of the support base 11. As shown in FIG. 8, the roll accommodating unit 50 accommodates the sheet roll 17. The roll accommodating portion 50 is configured by a partition wall 51 and a lid 52 that are suspended from the support plate 22.

  As shown in FIG. 5, the partition wall 51 extends downward from a position inside the first end 25 on the lower surface of the support plate 22, and the extending end is curved toward the first end 25. . Although not shown in the figure, the width of the partition wall 51 is approximately the same as the width of the support plate 22. The curvature of the extending end of the partition wall 51 is set in consideration of the diameter of the sheet roll 17. A space closer to the first end 25 of the support plate 22 than the partition wall 51 is an accommodation space 63 for accommodating the sheet roll 17. The accommodation space 63 is open to the first end 25 side of the support plate 22. The partition wall 51 substantially separates the storage space 63 below the support plate 22 and the space on the motor storage portion 68 side.

  As shown in FIGS. 2, 3, and 5, the lid 52 extends from the vicinity of the extending end of the partition wall 51 toward the first end 25 of the support plate 22. The lid 52 opens and closes the opening of the accommodation space 63. As shown in FIG. 4, the lid 52 mainly includes a curved plate 53. As shown in FIG. 4, the curved plate 53 has a width approximately the same as the width of the support plate 22, and the height of the curved plate 53 is a portion below the support plate 22 in the leg portions 23 and 24 of the base body 20. Slightly lower.

  As shown in FIG. 4, side plates 54 and 55 are provided on both sides of the curved plate 53. The side plates 54 and 55 protrude from the curved plate 53 toward the accommodation space 63 (inner side of the curve). Each of the side plates 54 and 55 has a protruding width that increases downward along both sides of the curved plate 53, and the lowermost end has a semicircular shape. In the vicinity of the lowermost end of each side plate 54, 55, shafts 56, 57 projecting outward from the curved plate 53 are provided. The shafts 56 and 57 are inserted into shaft holes 27 and 28 provided in the pair of leg portions 23 and 24 of the base body 20, and the lid 52 is rotatably supported by the base body 20.

  Near the upper end of the lid 52, pins 58 and 59 projecting outward from the lid 52 are provided. Although not appearing in each figure, the lids 52 are held in the closed position (see FIG. 2) by fitting the pins 58 and 59 into the recessed portions provided in the pair of leg portions 23 and 24, respectively. In FIG. 4, the pin 58 provided on the side plate 54 does not appear, but the pin 59 in the side plate 55 has a target shape.

  As shown in FIG. 4, the curved plate 53 is provided with ribs 60 to 62 having substantially the same shape as the side plates 54 and 55 in parallel between the side plates 54 and 55. The ribs 60 to 62 protrude from the curved plate 53 toward the accommodation space 63. The ribs 60 to 62 reinforce the curved plate 53, and end surfaces that project into the accommodation space 63 position the sheet roll 17.

  By attaching the lid 52 to the base body 20, the lid 52 can be rotated with respect to the base body 20. As shown in FIG. 2, a state where the upper end (rotating tip) of the lid 52 is positioned near the first end 25 of the support plate 22 is referred to as a closed posture of the lid 52. The lid 52 in the closed posture holds the sheet roll 17 in a predetermined position with the ribs 60 to 62 coupled with the partition wall 51. The axial direction of the held sheet roll 17 is positioned in the horizontal direction along the short side direction of the support plate 22.

  The height of the curved plate 53 of the lid 52 is slightly lower than the portions of the leg portions 23 and 24 of the base body 20 that are below the support plate 22. Accordingly, a slit 64 is formed between the upper end of the closed lid 52 and the first end 25 of the support plate 22. The slit 64 has a horizontally long shape along the first end 25 of the support plate 22, and has such a size and shape that the sheet 12 can be pulled out from the sheet roll 17 along the first end 25 in the width direction of the sheet 12. is there.

  As shown in FIGS. 3 and 4, a guide 65 is provided at a position corresponding to the slit 64. The guide 65 is a long member provided at the first end 25 of the support plate 22. The length of the guide 65 is equal to the length of the first end 25 of the support plate 22. The upper edge of the slit 64 is formed by the guide 65. As shown in FIG. 8, the sheet 12 pulled out from the roll accommodating portion 50 reaches the elastic deformation member 21 while being slid with respect to the guide 65. The width direction of the sheet 12 guided by the guide 65 is along the short side direction of the support plate 22. Therefore, the drawn sheet 12 is extended to the upper surface of the elastic deformation member 21 without being twisted.

  When the sheet 12 is continuously pulled out from the outer peripheral side of the sheet roll 17 accommodated in the accommodation space 63 through the slit 64, the sheet roll 17 rotates around the axial direction (horizontal direction) in the accommodation space 63. During the rotation of the sheet roll 17, the ribs 60 to 62 and the partition wall 51 of the lid 52 hold the axial direction of the sheet roll 17 in the horizontal direction along the short side direction of the support plate 22 while allowing the rotation. To do.

  As shown in FIG. 3, when the lid 52 is in the open posture, the accommodation space 63 opens to the first end 25 side. Therefore, the sheet roll 17 can be loaded into the accommodation space 63 from the first end 25 side.

[Sensor 67]
As shown in FIG. 3, a through hole 66 is formed in the guide 65. The through hole 66 penetrates the guide 65 in the thickness direction. A sensor 67 (see FIG. 4) is disposed on the surface of the guide 65 that is opposite to the accommodation space 63 so as to correspond to the through hole 66. This sensor 67 is a reflective optical sensor. Although not shown in detail in each drawing, the sensor 67 includes a light emitting element that emits visible light or infrared light, and a light receiving element that receives the light and outputs an electrical signal corresponding to the light amount. Light emitted from the light emitting element is transmitted to the accommodation space 63 through the through hole 66. As described above, when the sheet 12 that slides with respect to the guide 65 covers the through hole 66, the light of the light emitting element is reflected by the sheet, and the reflected light is received by the light receiving element through the through hole 66. An electrical signal corresponding to the amount of reflected light is output from the sensor 67. The sensor 67 is connected to the control unit 90 so as to be able to transmit this electric signal.

[Sheet Winding Unit 18]
As shown in FIG. 5, a sheet winding unit 18 is provided on the second end 26 side of the support base 11. As shown in FIG. 8, the sheet winding unit 18 winds up the sheet 12 covering the upper surface of the elastic deformation member 21. As shown in FIG. 4, the sheet winding unit 18 includes a rotating shaft 13 fitted in bearing grooves 29, 30, 35, and 36, and further includes lock members 15 and 16.

  As shown in FIG. 4, the lock members 15 and 16 have donut boards 70 and 71 and operation levers 72 and 73, respectively. Since the lock members 15 and 16 have symmetrical shapes corresponding to the bearing grooves 29 and 35 or the bearing grooves 30 and 36, the lock member 15 will be described in detail below as an example, and the lock member 16 will be described in detail. Explanation is omitted.

  As shown in FIG. 4, the lock member 15 includes a donut board 70 and an operation lever 72. The donut board 70 is interposed between the leg portion 23 of the support base 11 and the exterior material 33. The donut board 70 is disposed at a position corresponding to the bearing grooves 29 and 35 between the leg portion 23 and the exterior member 33. An introduction groove 74 is formed in the donut board 70 corresponding to the bearing grooves 29 and 35. The introduction groove 74 can be integrated with the bearing grooves 29 and 35 when the donut board 70 is interposed between the leg portion 23 of the support base 11 and the exterior member 33 to be in the unlocked posture. Accordingly, the shape of the introduction groove 74 is substantially the same as the shape of the bearing grooves 29 and 35 described above, but the inner diameter of the inner portion is smaller than the inner diameter of the inner portion of the bearing grooves 29 and 35.

  At the back of the introduction groove 74, ribs 76 and 77 are provided that are flush with the inner peripheral surface of the introduction groove 74 and project toward the leg portion 23 and the exterior material 33. The rib 76 is engaged so as to be in sliding contact with the inner peripheral surface of the inner portion of the bearing groove 29. The rib 77 is engaged so as to be in sliding contact with the inner peripheral surface of the inner portion of the bearing groove 35. By engaging the ribs 76 and 77 with the bearing grooves 29 and 35, the donut board 70 is positioned with respect to the bearing grooves 29 and 35, and the donut board 70 is centered on the back of the bearing grooves 29 and 35. It can be rotated.

  The operation lever 72 has a pin shape protruding from the donut board 70 toward the exterior material 33 side. In a state where the donut board 70 is interposed between the leg portion 23 of the support base 11 and the exterior material 33, the operation lever 72 is inserted into the operation lever guide groove 43 of the exterior material 33, and the outer side of the exterior material 33. Is projected to. By moving the operation lever 72 within the range of the operation lever guide groove 43, the donut board 70 is rotated by 90 degrees at the maximum. When the operation lever 72 is positioned at the upper end of the operation lever guide groove 43, the donut board 70 is in the unlocked posture. When the operation lever 72 is positioned at the lower end of the operation lever guide groove 43, the introduction groove 74 of the donut board 70 is directed upward without being aligned with the bearing grooves 29 and 35, and the donut board 70 is in a locked posture. In the locked posture, the rotary shaft 13 that has entered the introduction groove 74 of the donut board 70 is positioned with respect to the opening side of the bearing grooves 29 and 35 and is rotatably supported by the bearing grooves 29 and 35 and the donut board 70. The On the other hand, when the introduction groove 74 of the donut board 60 and the bearing grooves 29, 35 are continuous in the unlocked posture, the rotary shaft 13 can be inserted into and removed from the outside of the support base 11 into the bearing grooves 29, 35, 74. In this way, by operating the operation lever 72, the posture of the donut board 70 is changed between the locked posture and the unlocked posture. The rotational position of the donut board 70 in each posture corresponds to the first rotational position and the second rotational position in the present invention.

  The planetary gear 107 is rotatably supported on the donut board 70 by a support shaft (not shown) protruding toward the leg portion 23 of the support base 11. In the planetary gear 107, the donut board 70 is interposed between the leg portion 23 of the support base 11 and the exterior material 33. When the operation lever 72 is positioned at the upper end of the operation lever guide groove 43, the planetary gear 107 is positioned at the second position where the planetary gear 107 meshes with the transmission gear 109. When the operation lever 72 is positioned at the lower end of the operation lever guide groove 43, the planetary gear 107 is positioned at the first position where the planetary gear 107 meshes with the transmission gear 103. That is, when the operation lever 72 is operated, the planetary gear 107 is moved.

  Although the detailed description of the lock member 16 is omitted, like the lock member 15, the lock member 16 includes a donut board 71 and an operation lever 73, and the donut board 71 includes an introduction groove 75, ribs 78 and 79, A planetary gear 108 is provided.

[Rotating shaft 13]
As shown in FIG. 4, the rotating shaft 13 includes a winding portion 82, fitting portions 83 and 84, and sun gears 85 and 86. As shown in FIG. 8, the winding unit 82 winds the sheet 12 by binding the end of the sheet 12. The axial width of the winding portion 82 is slightly wider than the width of the sheet 12. The winding portion 82 occupies the center with respect to the width direction of the rotating shaft 13, and fitting portions 83 and 84 are disposed at both ends of the rotating shaft 13, respectively. The fitting parts 83 and 84 have such an outer diameter that they can enter the bearing grooves 29, 30, 35, and 36, and can enter the introduction grooves 74 and 75 with respect to the lock members 15 and 16. It is a size.

  The sun gears 85 and 86 are interposed between the winding part 82 and the fitting parts 83 and 84, respectively. The planetary gears 107 and 108 mesh with the sun gears 85 and 86. The planetary gears 107 and 108 can rotate around the sun gears 85 and 86. When drive is transmitted from the motor 90 or the manual handles 121, 122 to the planetary gears 107, 108, the transmitted drive is transmitted to the sun gears 85, 86, and the sun gears 85, 86 are rotated. At the same time, the winding unit 82 is rotated. That is, the rotating shaft 13 is rotated.

[Motor 90]
As shown in FIGS. 4 and 5, a motor 90 is disposed below the support plate 22 in the base body 20. The motor 90 corresponds to the drive source in the present invention. Below the support plate 22, the first end 25 side of the support plate 22 is partitioned as a roll accommodating portion 50 by the partition wall 51 described above, and the second end 26 side of the support plate 22 is seated by the partition wall 91. A space in which the rotation shaft 13 of the winding unit 18 is disposed is partitioned, and a motor 90 is disposed in a motor housing portion 68 sandwiched between the partition wall 51 and the partition wall 91. The motor 90 is a motor with a speed reduction mechanism, and the reduced speed drive is transmitted to the output shaft 92. A power supply 93 is arranged in the same space as the motor 90. The power supply 93 is disposed on a lid 94 that covers the lower opening of the space sandwiched between the partition walls 51 and 91. Electric power is supplied from the power source 93 to drive the motor 90.

[Drive transmission mechanism]
The drive transmission mechanism from the motor 90 to the rotating shaft 13 is composed of output gears 101 and 102, sun gears 85 and 86, transmission gears 103, 104, 109 and 110, and planetary gears 107 and 108. In this specification, a member simply referred to as a “gear” is a spur gear.

  As shown in FIG. 4, the output shaft 92 of the motor 90 projects toward the leg portions 23 and 24 of the base body 20. The leg portions 23 and 24 are respectively formed with through holes 98 and 99 through which the output shaft 92 is inserted in the thickness direction. Output gears 101 and 102 are fixed to both ends of the output shaft 92 inserted through the through holes 98 and 99, respectively. The output gears 101 and 102 are rotated together with the output shaft 92. Transmission gears 103 and 104 are engaged with the output gears 101 and 102, respectively. The output gear 101 is meshed with the transmission gear 103, and the output gear 102 is meshed with the transmission gear 104. The output gear 101 and the transmission gear 103 are pivotally supported by the gear holder 105, and the output gear 102 and the transmission gear 104 are pivotally supported by the gear holder 106. The gear holders 105 and 106 are fixed to the outside of the leg portions 23 and 24, respectively. The transmission gears 103 and 104 correspond to the first transmission gear in the present invention. In FIG. 4, the through hole 98 and the output gear 102 do not appear, but the through hole 98 has a symmetrical shape with the through hole 99, and the output gear 102 has a symmetrical shape with the output gear 101.

  The transmission gears 103 and 104 mesh with the planetary gears 107 and 108 positioned at the first position, respectively. As described above, the operation lever 72 is rotated around the sun gears 85 and 86. The planetary gears 107 and 108 in the first position mesh with the transmission gears 103 and 104 and mesh with the sun gears 85 and 86. Thereby, the driving force of the motor 90 is transmitted to the rotating shaft 13 through the drive transmission mechanism, and the rotating shaft 13 is rotated. This state of drive transmission is the first drive transmission state in the present invention (see FIG. 9).

  As shown in FIG. 4, transmission gears 109 and 110 are provided corresponding to the through holes 41 and 42 formed in the exterior members 33 and 34 of the support base 11. The transmission gears 109 and 110 are engaged with the respective through holes 41 and 42 and supported so as to be rotatable about the axes of the through holes 41 and 42. The transmission gears 109 and 110 and the sun gears 85 and 86 are both disposed between the leg portions 23 and 24 and the exterior members 33 and 34, and the transmission gear 109 and the sun gear 85 are separated from each other. The gear 110 and the sun gear 86 are separated from each other. When the planetary gear 107 rotated around the sun gear 85 is set to the second position, the transmission gear 109 and the planetary gear 107 are engaged with each other. When the planetary gear 108 rotated around the sun gear 86 is set to the second position, the transmission gear 110 and the planetary gear 108 mesh (see FIG. 10). Thereby, the driving force of the manual handles 121 and 122 is transmitted to the rotating shaft 13 via the drive transmission mechanism, and the rotating shaft 13 is rotated. This state of drive transmission is the second drive transmission state in the present invention. The transmission gears 109 and 110 correspond to the second transmission gear in the present invention. In FIG. 4, the transmission gear 109 does not appear, but the transmission gear 109 has a symmetrical shape with the transmission gear 110.

[Manual handles 121, 122]
As shown in FIGS. 6 and 7, blood collection table 10 has a pair of detachable manual handles 121 and 122. The manual handles 121 and 122 are attached to the blood collection table 10 by being fitted into the through holes 41 and 42 formed in the exterior materials 33 and 34 of the support table 11. Since the pair of manual handles 121 and 122 form a target shape in the width direction corresponding to the respective exterior materials 33 and 34, the detailed configuration thereof will be described below by taking the manual handle 121 as an example.

  As shown in FIG. 7, the manual handle 121 mainly includes a handle portion 123 and a lock lever 125. The handle portion 123 has a substantially cylindrical shape, and a rotating shaft 127 projects from the axis. The rotating shaft 127 is inserted into the through hole 41 of the exterior material 33 and is fitted into the transmission gear 109. Thereby, the handle | steering-wheel part 123 and the transmission gear 109 are rotated integrally.

  The lock lever 125 has a bearing 128 and an L-shaped member 129. The bearing 128 has a cylindrical shape that can be inserted into the through-hole 41 of the exterior member 33, and rotatably supports the rotating shaft 127 with the rotating shaft 127 inserted into the internal space, and the rotating shaft 127 is an axis. Secure against direction. Thereby, the handle part 123 and the lock lever 125 are connected. In this connected state, the tip of the rotating shaft 127 protrudes from the bearing 128.

  The L-shaped member 129 extends from the outer peripheral surface of the bearing 128 in the radial direction of the bearing 128, is bent substantially at a right angle, and protrudes in the same direction as the rotary shaft 127 along the axial direction of the bearing 128. A part of the L-shaped member 129 on the bearing 128 side is fitted into a lock lever guide groove 39 formed in the exterior material 33. A part of the L-shaped member 129 extending in the axial direction of the bearing 128 is inserted into the bearing groove 35 of the exterior member 33 and the bearing groove 29 of the leg portion 23. The position where the L-shaped member 129 is inserted into the bearing grooves 29 and 35 is on the opening side (the second end 26 side) from the rotary shaft 13 located behind the bearing grooves 29 and 35. The L-shaped member 129 prevents the rotary shaft 13 from coming off the bearing grooves 29 and 35 even when the lock members 15 and 16 are in the unlocked posture.

  The manual handle 122 has a handle portion 124 and a lock lever 126 similar to the handle portion 123 and the lock lever 125 of the manual handle 121, although the detailed description of the configuration is omitted.

[Sheet roll 17]
As shown in FIG. 8, the upper surface, that is, the support surface of the elastic deformation member 21 is covered with the sheet 12. The sheet 12 is a flat belt made of, for example, cloth, paper, or other material that can absorb blood. The width of the sheet 12 is equal to the length of the elastic deformation member 21 in the short side direction. The length of the sheet 12 is sufficiently longer than the length of the elastic deformation member 21 in the long side direction. Therefore, the sheet 12 can substantially cover the upper surface of the elastic deformation member 21. The sheet 12 is wound into a cylindrical shape around the width direction as a sheet roll 17. The sheet 12 is pulled out from the sheet roll 17 to cover the upper surface of the elastic deformation member 21.

  As shown in FIG. 11, detected lines 14 are marked on the sheet 12 at a predetermined interval in the longitudinal direction. The detected line 14 is marked on the sheet 12 in the width direction. Further, the detected line 14 is marked on the surface of the support 12 opposite to the elastic deformation member 21 of the front and back surfaces of the sheet 12. Therefore, the detected line 14 does not appear directly on the appearance of the blood collection table 10. The detected lines 14 are marked at predetermined intervals in the longitudinal direction over the entire sheet 12. The interval between adjacent detected lines 14 is equal to the distance between the first end 25 and the second end 26 of the support plate 22. The color of the detected line 14 is not particularly limited, but is a color that can be optically detected by the sensor 67. For example, if the sheet 12 is white, the detected line 14 may be black or blue. This detected line 14 corresponds to a detected part in the present invention.

[Control unit 140]
As shown in FIG. 12, the control unit 140 is configured as an arithmetic device having a CPU, a ROM, and a RAM. Although not shown in each figure, the substrate constituting the control unit 140 is disposed near the power supply 93.

  The control unit 140 generates a PWM signal or the like for driving the motor 90 and applies a drive current to the motor 90. The control unit 140 is connected to the input switch 46, the LEDs 47 and 48, and the sensor 67 so as to be able to transmit and receive electrical signals. The control unit 140 includes a timer 141 and a counter 142. The control unit 140 configured as described above controls the operation of the blood collection table 10 as will be described later.

[Operation of Blood Collection Table 10]
Hereinafter, the operation when the blood collection table 10 is used by driving the motor 90 will be described in detail. When the motor 90 is driven, the manual handles 121 and 122 are not necessary.

  The blood collection table 10 is placed on a table and used for blood collection, and is particularly suitable for blood collection performed continuously from a large number of people as in a health examination. At the time of blood collection, an unused sheet roll 17 is loaded into the roll accommodating portion 50 of the blood collection table 10. When loading the sheet roll 17, the blood collection table 10 is placed on the work table or the like with the support plate 22 supported at a predetermined height from the upper surface of the work table or the like by the legs 23 and 24. This sheet roll 17 is, for example, the length of the sheet 12 for approximately 100 uses. Therefore, approximately 100 detected lines 14 are marked on the sheet 12 of the sheet roll 17.

  As shown in FIG. 3, the roll accommodating portion 50 is opened with the lid 52 in an open posture. And the unused sheet | seat roll 17 is inserted in the roll accommodating part 50 by making a horizontal direction into an axial direction. The end of the sheet 12 on the outer periphery of the inserted sheet roll 17 is gripped and pulled out from the rotating tip of the lid 52. When the lid 52 is in the closed posture, the sheet roll 17 is supported in the horizontal direction along the first end 25 of the support plate 22 by the partition wall 51 and the ribs 60 to 62 as shown in FIG. The sheet 12 drawn out from the sheet roll 17 extends to the outside of the roll accommodating unit 50 through the slit 64.

  The sheet 12 extending from the slit 64 is drawn along the guide 65 to the upper surface of the elastic deformation member 21 so as to extend from the first end 25 side to the second end 26 side. The sheet 12 is pulled out in the longitudinal direction of the band shape. The rotary shaft 13 connects the end of the sheet 12 to the winding portion 82 in a state where the rotary shaft 13 is not fitted in the bearing grooves 29, 30, 35, and 36.

  The operation levers 72 and 73 of the lock members 15 and 16 are moved to the upper ends of the operation lever guide grooves 43 and 44 so that the lock members 15 and 16 are unlocked, and the rotary shaft 13 to which the seat 12 is connected is connected to the bearing grooves 29 and 29. Insert into 30, 35, 36. The rotary shaft 13 is caused to enter the interior of the bearing grooves 29, 30, 35, and 36, and further, the rotary shaft 13 is caused to enter the inner space of the donut boards 70 and 71 through the introduction groove 67. Thereafter, the operation levers 72 and 73 of the lock members 15 and 16 are moved to the lower ends of the operation lever guide grooves 43 and 44 to be in the locked posture, and the rotary shaft 13 is positioned with respect to the openings of the bearing grooves 29, 30, 35 and 36. To do. Then, by pressing the input switch 46, the rotary shaft 13 is rotated as will be described later. Thus, the sheet 12 is slightly wound around the rotary shaft 13 so that the sheet 12 covers the upper surface of the elastic deformation member 21 without slack.

  As described above, the arm of the blood sample is placed on the upper surface of the elastic deformation member 21 covered with the sheet 12. The blood collection table 10 makes the first end 25 of the support plate 22 face the blood collection subject. Thereby, along the inclination of the upper surface of the elastic deformation member 21, the wrist of the blood collection subject has the wrist below the elbow. Then, blood is collected by a known method using a syringe, a vacuum blood collection tube, or the like.

  As shown in FIG. 13, when blood collection is completed and the arm of the blood sample is separated from the elastic deformation member 21, the control unit 140 drives the motor 90 by pressing the input switch 46 (S2) (S4). . When the blood collection table 10 is used for the first time, the count of the counter 142 is reset and C = 0 (S1). Further, the controller 140 starts the timer 141 when driving the motor 90 (S3).

  When the rotary shaft 13 is rotated, the sheet 12 is wound around the rotary shaft 13 while moving in the direction of the arrow 100 (see FIG. 8). Accordingly, the sheet 12 moves to the arrow 100 on the upper surface of the elastic deformation member 21. Further, the unused sheet 12 is drawn from the sheet roll 17 to the elastic deformation member 21 through the slit 64. At this time, the bearing grooves 29, 30, 35, etc. are formed on the rotary shaft 13 through the sheet 12 by sliding friction between the sheet 12 and the elastic deformation member 21, sliding friction between the sheet roll 17, the partition wall 51 and the ribs 60 to 62. Although the force drawn to the opening side of 36 acts, as described above, the rotation shaft 13 is positioned with respect to the opening of the bearing grooves 29, 30, 35, 36 by the lock members 15, 16. The rotating shaft 13 does not move toward the opening.

  The controller 140 monitors whether the drive time T measured by the timer 141 exceeds a predetermined threshold T1 (S5). This threshold value T1 is set as a time sufficient to wind the sheet 12 around the rotation shaft 13 by the distance between the detected lines 14 of the sheet 12 based on the rotation speed of the output shaft 92 of the motor 90 and the gear ratio of the drive transmission mechanism. Is done. If the sheet roll 17 is completely used or the connection between the rotary shaft 13 and the sheet 12 is incomplete, the sheet 12 is not pulled out from the roll accommodating unit 50 and the motor 90 is continuously driven. When the driving time T of the motor 90 exceeds the threshold value T1 (S5: YES), the control unit 90 causes the LEDs 47 and 48 to emit light in a predetermined pattern and displays an error (S6).

  The used sheet 12 covering the upper surface of the elastic deformation member 21 is wound around the rotating shaft 13, and the unused sheet 12 pulled out from the sheet roll 17 covers at least the first surface of the elastic deformation member 21. It is only necessary that the sheet 12 is wound around the rotary shaft 13 by the distance between the first end 25 and the second end 26. For this purpose, the control unit 140 drives the motor 90 until the sensor 67 detects the detected line 14 (S7). If the previous rotation of the rotating shaft 13 is stopped based on the detected line 14, the rotating shaft 13 is rotated until the detected line 14 is detected next, whereby the first end 25 and the second end The sheet 12 is wound around the rotary shaft 13 by the distance of 26.

  When the sensor 67 detects the detected line 14 (S7: YES), the controller 140 stops and resets the timer 141 (S8), and stops the driving of the motor 90 (S9). As a result, the upper surface of the elastic deformation member 21 is covered with the new sheet 12. Then, the control unit 140 adds 1 to the count number C of the counter 142 (S10).

  After the upper surface of the elastic deformation member 21 is replaced with the unused sheet 12, the next blood collection person's arm is placed on the upper surface of the elastic deformation member 21 covered with the unused sheet 12. Further, the same operation is performed for the next blood sample, and the arm of the blood sample is always placed on the upper surface of the elastic deformation member 21 covered with the unused sheet 12.

  The sheet roll 17 is wound with a sheet 12 having such a length that the upper surface of the elastic deformation member 21 can be replaced with a new sheet 12 approximately 100 times. As described above, after adding the count number C of the counter 142 by 1 (S10), the control unit 140 determines whether the count number C of the counter 142 is 90 or more (C ≧ 90) (S11). . If the count number C of the counter 142 is 90 or more (S11: YES), the control unit 140 displays that the remaining amount of the sheet roll 17 is reduced by causing the LEDs 47 and 48 to emit light in a predetermined pattern ( S12).

  Further, the control unit 140 determines whether the count number C of the counter 142 is 100 or more (C ≧ 100) (S13). If the count number C of the counter 142 is 100 or more (S13: YES), the control unit 140 resets the counter 142 (S14), and then indicates that the sheet roll 17 has been lost by setting the LEDs 47 and 48 in a predetermined pattern. The light is emitted and displayed (S15).

  When all the sheet rolls 17 loaded in the roll accommodating portion 50 are used, the operation levers 72 and 73 of the lock members 15 and 16 are operated to hold the donut boards 70 and 71 in the unlocked posture, and the rotary shaft 13 is moved. Remove from the bearing grooves 29, 30, 35, 36. Then, the used sheet 12 is removed from the rotating shaft 13 and discarded. When removing the rotating shaft 13 as described above, it is not necessary to turn the support base 11 upside down.

  Thereafter, in the same manner as described above, a new unused sheet roll 17 is loaded into the roll accommodating portion 50, the end of the sheet 12 is connected to the rotary shaft 13, and the rotary shaft 13 is connected to the bearing grooves 29, 30, 35. , 36 is inserted and locked. By repeating this, the sheet 12 covering the elastic deformation member 21 can be automatically wound up until one sheet roll 17 is used up.

  In addition, although the sheet | seat 12 after use may be repeatedly used by performing washing | cleaning, sterilization, etc., it is preferable that it is disposable from a viewpoint of hygiene and infection prevention. Moreover, the rotating shaft 13 from which the used sheet 12 has been removed may be a disposal.

[Operation by manual handles 121, 122]
Hereinafter, the operation when the blood collection table 10 is used using the manual handles 121 and 122 will be described in detail.

  As shown in FIG. 1, by attaching manual handles 121 and 122 to the blood collection table 10, the sheet 12 can be manually wound around the rotary shaft 13. For example, such manual operation is useful when the power of the power supply 93 is lost or when some trouble occurs in the automatic operation of the blood collection table 10.

  Before the manual handles 121 and 122 are attached to the blood collection table 10, the operation levers 72 and 73 are moved to the upper ends of the operation lever guide grooves 43 and 44. Thereby, the introduction grooves 74 and 75 of the lock members 15 and 16 and the bearing grooves 29, 30, 35, and 36 coincide with each other. Further, the planetary gears 107 and 108 are in the second position, the drive transmission path from the motor 90 to the rotary shaft 13 is cut, and the drive transmission path from the transmission gears 109 and 110 to the rotary shaft 13 is connected (FIG. 10).

  The handle portions 123 and 124 of the manual handles 121 and 122 are inserted into the through holes 41 and 42 of the exterior members 33 and 34, and the lock levers 125 and 126 are inserted into the lock lever guide grooves 39 and 40 and the bearing grooves 29. , 30, 35, 36. As a result, the handle portions 123 and 124 and the transmission gears 109 and 110 are integrally rotated. Further, the lock levers 125 and 126 restrict the rotation shaft 13 from moving through the bearing grooves 29, 30, 35, and 36 to the opening side. When the handle portions 123 and 124 are rotated, the rotation shaft 13 is rotated, and the sheet 12 is wound around the rotation shaft 13. Thus, manual winding of the sheet 12 by operating the manual handles 121 and 122 is realized.

[Operational effects of this embodiment]
As described above, according to the blood collection table 10, the rotating shaft 13 that is rotated by driving transmission from the motor 90 winds up the used sheet 12, and accordingly the sheet roll accommodated in the roll accommodating unit 50. Since the sheet 12 is automatically pulled out from the upper surface of the elastic deformation member 21 from 17, the sheet 12 covering the upper surface of the elastic deformation member 21 is automatically wound up during a plurality of blood collections. Further, since the motor 90 is stopped when the sensor 67 detects the detected line 14, the winding of the sheet 12 is automatically performed when the elastic deformation member 21 is covered with the new sheet 12 only by pressing the input switch 46. Is stopped.

  Further, when the drive transmission mechanism is set to the second drive transmission state, the drive transmission path from the motor 90 to the rotary shaft 13 is cut, so that the rotary shaft 13 can freely rotate. Further, since drive transmission from the manual handles 121 and 122 to the rotary shaft 13 becomes possible, the rotary shaft 13 is rotated by operating the manual handles 121 and 122. Thus, automatic winding of the sheet 12 by the motor 90 and manual winding of the sheet 12 by operating the manual handles 121 and 122 are realized.

  Further, the operation of the operation levers 72 and 73 causes the planetary gears 107 and 108 to rotate between the first position where the planetary gears 107 and 108 are engaged with the transmission gears 103 and 104 and the second position where the planetary gears 107 and 108 are engaged. Switching between automatic winding and manual winding is easy.

  Further, a locking posture for positioning the rotating shaft 13 with respect to the opening side of the bearing grooves 29, 30, 35, and 36, and an unlocking posture for allowing the rotating shaft 13 to be inserted into and removed from the bearing grooves 29, 30, 35, and 36. Therefore, when the rotary shaft 13 winds up the sheet 12, the force in the direction toward the opening of the bearing grooves 29, 30, 35, 36 is transmitted through the sheet 12 to the rotary shaft 13. , The rotating shaft 13 does not come off from the bearing grooves 29, 30, 35, 36. On the other hand, when the lock members 15 and 16 are in the unlocked posture, the rotary shaft 13 can be removed from the bearing grooves 29, 30, 35 and 36.

  Further, since the posture change of the lock members 15 and 16 is linked to the operation of the operation levers 72 and 73, the rotary shaft 13 is locked during automatic winding, and for example, when the sheet roll 17 is replaced. The rotary shaft 13 can be removed from the bearing grooves 29, 30, 35, and 36, and the rotary shaft 13 is rotated by operating the manual handles 121 and 122.

  Further, since the arm of the blood sample is placed on the upper surface of the elastic deformation member 21, it is possible to give the blood sample a soft touch with little pain. The elastic deformation member 21 is supported by a support plate 22, and the support plate 22 is supported at a predetermined height on a work table by a pair of leg portions 23 and 24. Since the rotation shaft 13 is installed on the pair of leg portions 23 and 24 below the support plate 22, the space below the support plate 22 is used as an accommodation space for the belt-like sheet 12 wound around the rotation shaft 13. The blood collection table 10 can be downsized.

  Further, since the sensor 67 is provided in the accommodating space that can be closed by the lid 52 in the roll accommodating portion 50, the detected line 14 of the sheet 12 can be reliably detected by the optical sensor 67. Further, since the sensor 67 comes into contact with the unused sheet 12, there is no possibility that blood or the like attached to the sheet 12 is transferred to the sensor 67.

  Further, since the control unit 140 counts the count number C that the sensor 67 has detected the detected line 14 with the counter 142, the remaining amount of the sheet roll 17 is determined based on the count number C, and the sheet roll 17 The LEDs 47 and 48 inform the user that the remaining amount is low.

  Further, the control unit 140 measures the time from when the motor 90 is driven until the sensor 67 detects the detected line 14 by the timer 141, and if the drive time T is equal to or greater than the threshold T1, an error is caused by the LEDs 47 and 48. Therefore, the user can recognize that the sheet roll 17 has been lost or the sheet 12 has become jammed.

  Further, in the sheet roll 17, since the detected line 14 is marked on the surface facing the upper surface of the elastic deformation member 21, the blood collection person's arm or the like does not contact the detected line 14.

  In the present embodiment, the control unit 140 drives the motor 90 when the input switch 46 is pressed, but a pressure sensor may be used instead of the input switch 46. This pressure-sensitive sensor is provided on the elastic deformation member 21 of the support base 11, detects the pressure by the blood collection person's arm placed on the elastic deformation member 21, and outputs a detection signal. Therefore, when the arm of the blood sample is placed on the support base 11, the pressure is detected and the pressure sensor outputs an ON signal, and the arm of the blood sample is not placed on the support base 11. The pressure sensor outputs an OFF signal without detecting any pressure. The control unit 140 operates the motor 90 at the timing when the output signal from the pressure sensor is switched from the ON signal to the OFF signal. Thereby, when the blood collection is completed and the arm of the blood sample is separated from the support base 11, the sheet 12 is automatically wound up.

  In the present embodiment, when the sensor 67 detects the detected line 14 of the sheet 12, the control unit 140 stops the motor 90. However, the sensor 67 and the detected line 14 are not necessarily provided. For example, the control unit 140 rotates the sheet 12 covering the upper surface of the elastic deformation member 21 by a rotation amount sufficient to replace the sheet 12 drawn from the sheet roll 17 accommodated in the roll accommodating unit 50. The shaft 13 may be configured to rotate and stop.

  In addition, the support base 11 shown in the present embodiment is an aspect of the support base in the present invention, and it goes without saying that the configuration of the support base 11 may be changed as appropriate without departing from the gist of the present invention. Yes.

  In the present embodiment, an optical sensor is used as the sensor 67 and the detected line 14 that can be optically detected is written on the sheet 12. However, the sensor in the present invention is an optical sensor such as the sensor 67. For example, a magnetic sensor or the like may be used. The detected portion in the present invention only needs to be configured such that such a sensor can be detected. For example, in an embodiment in which a magnetic sensor is used, the detected portion is configured by a line having magnetism. That's fine.

  Further, in this embodiment, the sensor 67 is disposed in the roll accommodating unit 50. However, even if the position of the sensor 67 is changed as long as it is a position that is covered by the sheet 12 and can detect the detected line 14. Good.

  In the present embodiment, the pair of manual handles 121 and 122 are provided. However, if only one of the manual handles 120 and 121 is provided, the above-described effects can be obtained. Needless to say.

10 ... Blood collection table 11 ... Support table 12 ... Sheet 13 ... Rotating shaft 14 ... Detected line (detected part)
DESCRIPTION OF SYMBOLS 15,16 ... Lock member 17 ... Sheet roll 18 ... Sheet winding part 20 ... Stand main body 21 ... Elastic deformation member 22 ... Support plate 23, 24 ... Leg part 25 ... 1st end 26 ... 2nd end 29, 30, 35, 36 ... Bearing groove 46 ... Input switch (input reception part)
50... Roll accommodating part 52 .. Lid 67... Sensors 70, 71... Donut boards 72, 73.
74, 75 ... introduction grooves 85, 86 ... sun gear 90 ... motor (drive source)
101, 102 ... Output gear (drive transmission mechanism)
103, 104 ... transmission gear (drive transmission mechanism, first transmission gear)
107, 108 ... Planetary gear (drive transmission mechanism)
109, 110 ... transmission gear (drive transmission mechanism, second transmission gear)
121, 122 ... Manual handle (handle)
140: Control unit 141 ... Timer 142 ... Counter

Claims (15)

A support base having a support surface capable of supporting the blood collection person's arm in a state of being placed on a table;
A belt-like sheet covering the support surface, a sheet roll wound in a roll shape,
A roll accommodating portion that is provided on the first end side of the support base and accommodates the sheet so as to be able to be pulled out from the sheet roll;
A sheet take-up unit provided on the second end side opposite to the first end of the support base, and having a rotating shaft for taking up the sheet covering the support surface;
A blood collection table comprising: a drive source for rotating a rotation shaft of the sheet winding unit. An input receiving unit for driving the driving source;
The blood collection table according to claim 1, further comprising: a control unit that drives the drive source based on the fact that the input reception unit has received an input to start driving.   The blood collection table according to claim 2, wherein the input receiving unit is a pressure-sensitive sensor that is provided on the support table and detects the placement of the arm of the blood sample. In the sheet roll, a detected portion is written at an interval corresponding to the distance between the first end and the second end facing each other in the support base with respect to the longitudinal direction.
The blood collection table according to claim 2 or 3, wherein the control unit stops the drive source based on detection of the detected portion by a sensor arranged at a position covered by the sheet. A drive transmission mechanism for transmitting drive from the drive source to the rotary shaft; and a handle for manually rotating the rotary shaft;
The drive transmission mechanism is
A first drive transmission state in which the drive source and the rotary shaft are coupled so as to be capable of drive transmission;
The state is changed to a second drive transmission state in which the drive transmission between the drive source and the rotary shaft is released and the handle and the rotary shaft are connected so as to be capable of drive transmission. A blood collection table according to any one of the above. The drive transmission mechanism is
A first transmission gear provided to be able to transmit drive from the drive source;
A second transmission gear provided so as to be able to transmit drive from the handle;
A sun gear provided on the rotating shaft so as to be able to transmit a drive;
6. A blood collection table according to claim 5, comprising a planetary gear that orbits around the sun gear and selectively meshes with the first transmission gear or the second transmission gear.   The blood sampling table according to claim 6, further comprising a lever that positions the planetary gear at a first position where the planetary gear meshes with the first transmission gear and a second position where the planetary gear meshes with the second transmission gear. The sheet take-up part
A bearing groove that opens to the second end of the support and extends toward the first end, and into which the rotating shaft can be fitted;
A locking member that is provided in the bearing groove, and whose posture is changed to a locking posture that positions the rotating shaft with respect to the opening side and an unlocking posture that allows the rotating shaft to be inserted into and removed from the opening; Equipped,
The posture change of the lock member is interlocked with the lever, and the lever is in a locked posture when the planetary gear is in the first position, and is unlocked when the planetary gear is in the second position. The blood collection table according to claim 7, wherein the blood collection table is in a locked posture.   The lock member is provided at the back of the bearing groove so as to be rotatable between a first rotation position and a second rotation position, and rotatably supports the rotation shaft in the inner space thereof; and The blood collection table according to claim 8, wherein the blood collection table is a donut board having an introduction groove in which the inner space and the bearing groove are continuous at either one of the first rotation position and the second rotation position.   The blood sampling table according to claim 9, wherein the lever extends from the donut board and rotates the donut board. The support stand is
An elastic deformation member having the support surface;
A support plate for supporting the elastic deformation member, and a base body having a pair of legs extending downward from the support plate,
The blood sampling table according to any one of claims 8 to 10, wherein the bearing groove is provided in each of the pair of legs.   The roll accommodating portion is opened at a first end of the support base, and an accommodation space in which the sheet roll can be loaded through the opening, and a lid that closes the opening of the accommodation space leaving a slit from which a sheet can be drawn, The blood collection table according to claim 1, comprising:   The blood collection table according to claim 4, wherein the sensor is provided in the roll housing portion.   The said control part has a counter which counts the frequency | count that the said sensor detected the said to-be-detected part, and determines the residual amount of a sheet roll based on the count number of the said counter. Blood collection table.   The control unit has a timer for measuring a time from when the drive source is driven until the sensor detects the detected portion, and notifies the error when the timer measures a predetermined time or more. The blood collection table according to claim 4.

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