JP2007260293A - Sphygmomanometer cuff - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sphygmomanometer cuff capable of improving the durability, miniaturizing the size, and improving the measuring accuracy of the blood pressure and operability. <P>SOLUTION: This sphygmomanometer cuff 1 is provided with a tightening mechanism 2 tightening a flexible cuff 11, and a retaining mechanism 3 for retaining the tightening position of the tightened flexible cuff 11; the tightening mechanism 2 has a rack 42 formed at a tightening belt 4 and a pinion gear 22; when the pinion gear 22 is rotated, the rack 42 is sent in the tightening direction; the retaining mechanism 3 has a plurality of retaining holes 43 formed in the longitudinal direction of the tightening belt 4, and a retaining pin 31 engaged in the retaining hole 43; and the retaining pin 31 is engaged in the retaining hole 43 to retain the tightening position of the tightened flexible cuff 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wrist band for a blood pressure monitor, and in particular, by making the tightening mechanism and the holding mechanism excellent in mechanical strength, the durability can be improved and the size can be reduced, and blood pressure can be measured. The present invention relates to an arm band for a blood pressure monitor capable of improving accuracy and operability.

In recent years, sphygmomanometers have been widely used not only in hospitals and the like, but also for general households for the purpose of health management. These sphygmomanometers for general home use generally include a measuring unit that automatically measures and displays blood pressure, and an arm band for sphygmomanometer having an air bag or the like. The measurement part can measure blood pressure in a short time and easily. However, for the user of the sphygmomanometer, the task of winding the sphygmomanometer belt around the arm or removing it from the arm has been the most cumbersome task.
For this reason, various techniques have been developed to improve the above-mentioned ridiculous work so that even an elderly person can easily measure alone.

(Conventional example)
For example, in Patent Document 1, a curler that fastens and fixes an air bag to an upper arm, an actuator that contracts in an electric field direction by applying a voltage and expands in a direction perpendicular to the electric field direction, and is fixed to one end of the actuator. Disclosed is a technique for a sphygmomanometer clamping device that includes a mounted rack, a two-stage gear arranged to mesh with the rack, a rack meshed with the two-stage gear, and an electrode arranged to apply a voltage. Has been.
According to this technique, a complicated mechanism such as a motor or a clutch is not required, and a tightening operation with a simple structure and a higher response than the motor can be performed, which contributes to a reduction in blood pressure and a reduction in weight. it can.

Further, Patent Document 2 includes a case body equipped with a rotating shaft including a feed roller and a driven gear, and a drive gear that is spring-biased upward with respect to the case body and screwed with the driven gear at the lower end. At the same time, a shooting case is fitted to the upper end via a spring ball, and it is rotated by the rotation of the shooting case and is equipped with an inner wheel that rotates the shooting case under a constant rotational load. A blood pressure measurement cuff technique is disclosed that includes a shaft and a cuff body having one end fixed at a suitable position of the case body and the other end inserted and arranged in the case body via a feed roller.
This blood pressure measurement cuff has a reverse rotation prevention gear that prevents reverse rotation of the imaging shaft and a ratchet portion that meshes with this gear, and when the imaging cover is turned, the circumference of the cuff body decreases, When the shooting cover is pressed, the ratchet part is released and the circumference of the cuff body is restored.
JP 2006-6450 A Japanese Utility Model Publication No. 2-37604

  However, all of the above-described conventional sphygmomanometers wrap and tighten the cuff around the arm, and then send air to the air bag. At this time, the arm is pressed and the curler and the cuff body are expanded in the circumferential direction. A large force to act acts. Therefore, the sphygmomanometer clamping device described in Patent Document 1 has a risk of missing the teeth of the rack and the two-stage gear. To avoid this danger, the shape and material of the rack and the two-stage gear are used. Therefore, the mechanical strength is difficult to secure. Moreover, although the blood pressure measurement cuff described in Patent Document 2 includes a reverse rotation prevention gear and a ratchet portion, there is a risk that the teeth of the reverse rotation prevention gear may be lost, and this risk is avoided. However, it was necessary to carefully select the shape and material of the reverse rotation prevention gear, and it was difficult to ensure the mechanical strength. These insufficient mechanical strengths have an adverse effect on durability and have a problem of low durability.

In addition, when the blood pressure measurement cuff uses a spring having a large spring constant as a spring for biasing the ratchet portion upward, a large force is required to rotate the photographing cover, resulting in a decrease in operability. I was worried.
Furthermore, the sphygmomanometer clamping device and the blood pressure measurement cuff have a structure in which the cuff circumference decreases while the cuff is held in a cylindrical shape, and a structure that does not easily follow the truncated conical arm shape. It was. For this reason, in the case of a muscular arm or the like, there is a problem that the arm is not uniformly compressed by the air bag, and the blood pressure may not be measured accurately.

  The present invention has been proposed in order to solve the problems of the conventional techniques as described above, and the durability is improved by making the tightening mechanism and the holding mechanism excellent in mechanical strength. It is another object of the present invention to provide an arm band for a sphygmomanometer that can be downsized and that can improve blood pressure measurement accuracy and operability.

In order to achieve the above object, the sphygmomanometer belt according to the present invention is a sphygmomanometer belt that clamps a part of a living body with a tightening member; A holding mechanism having a holding hole and a holding member engaged with the holding hole, wherein the rack is formed integrally with the fastening member, and the holding hole is provided with the fastening member. In this configuration, the attachment member is perforated.
In this way, since the rack is formed on the tightening member, the teeth of the rack and the rack feeding means can be enlarged by effectively using the space, and the mechanical strength of the tightening mechanism is improved. At the same time, the tightening mechanism can be simplified and miniaturized. In addition, since the holding hole is formed in the tightening member and is held by the holding member to be engaged, the space is effectively used, and the mechanical strength of the holding mechanism is improved and firmly held, The holding mechanism can be reduced in size. Furthermore, since the holding strength can be calculated separately from the tightening mechanism, the design can be easily performed.

Moreover, it is preferable that the fastening member has a belt shape.
In this way, the structure is simplified and the size and weight can be reduced.

Preferably, the tightening member includes a flexible armband, and the rack is formed on the flexible armband.
In this way, the number of parts can be reduced and the manufacturing cost can be reduced. Note that this flexible armband generally has a portion having excellent flexibility for winding in a state fitted to the arm and a portion having excellent mechanical strength in which a rack is formed.

Preferably, the tightening member includes a flexible armband and a tightening belt wound around an outer periphery of the flexible armband, and the rack is formed on the tightening belt. .
In this way, when the tightening mechanism tightens the flexible armband, it can be tightened from the entire circumferential direction of the flexible armband, and the user can tighten the arm without a sense of incongruity. In addition, when air is supplied to the air bag, the force is distributed over the entire circumferential direction of the fastening belt, so that sudden force can be prevented from being applied to the holding mechanism, and the durability of the holding mechanism can be improved. be able to.

Preferably, the rack is provided on a side surface in the longitudinal direction of the fastening member, and the tooth thickness of the rack is the thickness of the fastening member.
In this way, the structure can be simplified and the manufacturing cost can be reduced.

Preferably, the rack is provided in an opening formed in the longitudinal direction of the fastening member.
In this case, since the rack does not protrude outward, damage to the rack is reduced, and durability can be improved.

Preferably, the rack feeding means is a pinion gear, a worm gear or a worm.
In this way, the structure can be simplified and the manufacturing cost can be reduced.

Preferably, the holding member is a holding pin.
In this way, a sufficiently strong mechanical strength can be realized with a simple structure.

Preferably, the fastening belt has a width of 20% to 80% or less of the width of the flexible armband, and is used at a central portion of the flexible armband. .
In this way, the portion of the flexible armband that is not covered by the fastening belt can be freely deformed to follow the arm shape of the truncated cone, so that the arm is uniformly compressed by the air bag. Therefore, blood pressure can be measured with high accuracy.

Preferably, the tightening mechanism has a picture for rotating the rack feeding means, and the holding mechanism biases the holding member in the engaging direction of the holding hole. When the shooting is rotated in the tightening direction, the holding member comes out of the holding hole against the biasing force of the biasing means, and the shooting is further tightened. The holding member moves in the tightening direction, and when the holding hole on the opening direction side of the holding hole moves to the position of the holding member, the biasing force causes the holding member to move. It is preferable to engage the holding hole through which the member has moved.
In this way, the tightening member can be moved in the tightening direction while being held in the holding hole through which the holding member has moved, and can clamp a part (upper arm) of the living body.

Preferably, the photographing has a ratchet mechanism for rotating the rack feeding means in a tightening direction and a torque limiter mechanism.
If it does in this way, while the trouble that a user will tighten too much can be avoided with a torque limiter mechanism, it can be surely tightened to the tightening position preferable for measurement. Further, the ratchet mechanism can prevent the holding mechanism from being damaged even if the user accidentally rotates with a large force in the direction of loosening the shooting.

Preferably, the holding mechanism has an opening lever for forcibly removing the holding member from the holding hole.
If it does in this way, a flexible arm belt can be loosened reliably by pressing down an open lever, and operativity can be improved.

Preferably, the tightening mechanism includes a driving unit that rotates the rack feeding unit.
If it does in this way, clamping of a clamping member can be automated and usability can be improved more.

Preferably, the rack is formed opposite to both ends in the longitudinal direction of the fastening member.
In this way, it is possible to double the tightening distance with respect to the shooting rotation angle and improve the mechanical strength of the tightening mechanism.

Preferably, the rack is a double rack.
In this way, the movement of the tightening member in the longitudinal direction can be performed in a well-balanced manner, and the mechanical strength of the tightening mechanism can be improved.

  According to the sphygmomanometer wristband of the present invention, the tightening mechanism and the holding mechanism have a structure excellent in mechanical strength, thereby improving durability and downsizing. And operability can be improved.

[Embodiment of Arm Band for Blood Pressure Monitor]
Hereinafter, an embodiment of an arm band for a blood pressure monitor of the present invention will be described with reference to the drawings.
FIG. 1: has shown the schematic perspective view of one Embodiment of the wristband for blood pressure monitors of this invention.
In the figure, a blood pressure monitor arm band 1 includes a tightening mechanism 2, a holding mechanism 3, a tightening belt 4 and a flexible arm band 11 as a tightening member, an air bag 12 provided with a pipe 121, and a protection. A cover 13 and the like are provided.
The sphygmomanometer arm band 1 is reduced in diameter by winding a flexible arm band 11 that is bent into a cylindrical shape during blood pressure measurement, and the flexible arm band 11 is an arm (not shown). Wrapped around.

<Flexible armband>
FIG. 2: has shown the schematic perspective view of the state from which the protective cover concerning one Embodiment of the wristband for blood pressure monitors of this invention was removed.
FIG. 3 shows a schematic top view of FIG.
Further, FIG. 4 shows a schematic side view of FIG.
2, 3, and 4, the flexible armband 11 (generally called a cuff) is a sheet formed in a resin-made cylindrical shape, and both ends in the longitudinal direction are in the circumferential direction. The structure overlaps about 180 °. The flexible arm band 11 has flexibility, and the diameter increases or decreases according to the thickness of the arm.
The flexible armband 11 has a cylindrical air bag 12 attached to the inner surface. The air bag 12 is provided with a pipe 121 protruding in the arm direction, and air is fed through the pipe 121 when measuring blood pressure.

<Tightening belt>
The fastening belt 4 is a resin-made arc-shaped belt, and is a length in which the pinion gear 22 is accommodated from substantially the center in the longitudinal direction to the other end (with the other end remaining). A hole-like opening 41 is formed, and a rack 42 that meshes with the pinion gear 22 (the tooth thickness thereof becomes the thickness of the fastening belt 4) at the upper part of the opening 41 (the side part in the longitudinal direction of the opening 41). Is formed). The fastening belt 4 is provided with a plurality of holding holes 43 into which the holding pins 31 are engaged in the upper and lower portions in the width direction over the entire length. The pitch of the holding holes 43 is set to be shorter than twice the diameter of the holding holes 43, so that the holding position can be finely adjusted.

Further, in the portion where the opening 41 is not formed, two through holes 44 are disposed between the upper holding hole 43 and the lower holding hole 43, so that the material cost is reduced and the opening is opened. The rigidity of the portion where the portion 41 is not formed is substantially matched with the rigidity of the portion where the opening 41 is formed. Thereby, the flexible arm band 11 can be maintained substantially cylindrical regardless of the holding position.
Further, the fastening belt 4 usually has a thickness of about 2 to 3 mm and has sufficient mechanical strength as the rack 42.

  The fastening belt 4 having the above structure has one end in the longitudinal direction connected to the base 20 via a connecting plate 24 pivotally supported by the base 20 and the other end of the base 20. The groove 201 is inserted. That is, the fastening belt 4 is provided in a state of being wound around the outer periphery of the flexible arm band 11. In this way, when the tightening mechanism 2 tightens the flexible arm band 11, it can be tightened from the entire circumferential direction of the flexible arm band 11, and the user can perform tightening on the arm without a sense of incongruity. it can. In addition, when air is supplied to the air bag 12, the force is distributed over the entire circumferential direction of the fastening belt 4, so that sudden force can be prevented from being applied to the holding mechanism 3, and the durability of the holding mechanism 3 can be prevented. Can be improved.

  Preferably, the fastening belt 4 has a width of 20% to 80% or less of the width of the flexible arm band 11, and is further tightened to substantially the center of the flexible arm band 11 in the arm direction. It is good to use in the state. In this way, the portion of the flexible arm band 11 on which the fastening belt 4 does not hang can be freely deformed to follow the arm shape of the truncated cone, so that the arm is compressed by the air bag 12. It is performed uniformly and blood pressure can be accurately measured. The reason why the width of the flexible armband 11 is 20% or more is that if it is less than 20%, the flexible armband 11 cannot be tightened as a whole. The reason why the width of the armband 11 is 80% or less is that if it exceeds 80%, the freely deformable portion of the flexible armband 11 becomes too small to follow the truncated conical arm shape. Because it becomes impossible.

<Tightening mechanism>
The tightening mechanism 2 includes a rack 42 formed on the tightening belt 4 and a pinion gear 22 that is press-fitted into a rotating shaft 23 that is rotatably provided on the bottom plate of the base 20. The pinion gear 22 is provided at a substantially central portion of the groove 201. Further, the tightening mechanism 2 has a shooting 21 for rotating the pinion gear 22. The photographing 21 has a pinion gear 22 screwed therein, and the pinion gear 22 is press-fitted into the rotary shaft 23 while being screwed into the photographing 21. By adopting such a configuration, it is possible to increase the size of the teeth of the rack 42 and the pinion gear 22 by effectively using the space, improve the mechanical strength of the tightening mechanism 2, and tighten the tightening mechanism. 2 is simplified and miniaturized.
According to the tightening mechanism 2 of the present embodiment, when the user rotates the photographing 21 in the clockwise direction, the pinion gear 22 rotates in the clockwise direction, and the rack 42 is sent in the tightening direction. Tighten the armband 11.

Further, the groove 201 is formed with a locking portion 25 for locking the surface of the fastening belt 4 and a hemispherical projection 26 that contacts the side surface of the fastening belt 4 at four locations. Thus, the movement in the front direction is restricted, the fastening belt 4 can be smoothly moved, and the movement direction is adjusted so that the fastening belt 4 does not move in an oblique direction.
Furthermore, the base 20 has a contact plate 27 having a slope with a standard curvature radius of the flexible armband 11 protruding from the upper end surface and the lower end surface of the bottom plate in the direction of the flexible armband 11. ing. Thereby, when the tightening belt 4 is tightened, the bottom surface of the base 20 does not directly contact the flexible arm band 11, so that the cylindrical shape of the flexible arm band 11 is substantially maintained.
In this embodiment, the base 20 is not fixed to the flexible armband 11 and is configured to be movable. However, the present invention is not limited to this configuration. For example, the flexible armband 11 It is good also as a structure fixed to an adhesive agent.

<Holding mechanism>
The holding mechanism 3 includes a holding hole 43 formed at a plurality of positions in the longitudinal direction of the fastening belt 4 described above, a pair of holding pins 31 engaged with the holding hole 43, and a holding pin 31. A spring 35 as an urging means for urging the holding hole 43 in the engaging direction and an opening lever 36 for forcibly removing the holding pin 31 from the holding hole 43 are provided.

The holding pin 31 is pivotally supported by a shaft 32 attached to the base 20 by a bolt 34 at a height position corresponding to the upper and lower holding holes 43. The spring (torsion spring) 35 is pivotally supported by a shaft 33 attached to the base 20 by a bolt 34, and one end portion attaches the holding pin 31 in the engaging direction of the holding hole 43. It is fast.
Further, the shafts 32 and 33 have a structure in which bolts 34 are screwed at both ends so as not to be detached from the base 20. However, the shafts 32 and 33 are not limited to the bolts 34. It is good also as a structure which fits in and is not removed from the base 20.

  Here, as shown in FIG. 6, the holding pin 31 is pivotally supported around a shaft 32 disposed obliquely upward to the left with respect to the pin center point. For this reason, when the shooting 21 is rotated in the clockwise direction (tightening direction), the side wall of the holding hole 43 in which the holding pin 31 is engaged comes into contact with and presses the holding pin 31. By the action of the force, the holding pin 31 is easily pulled out of the holding hole 43 against the biasing force of the spring 35 with the shaft 32 as the rotation center. When the camera 21 is further rotated in the clockwise direction (tightening direction), the fastening belt 4 moves in the fastening direction, and the holding hole 43 on the opening direction side from the holding hole 43 that has been pulled out is held. When the pin 31 is moved to the position, the holding pin 31 is engaged by the biasing force of the spring 35 into the holding hole 43 that has been moved. By repeating the above operation, the fastening belt 4 moves in the fastening direction while being engaged with the holding hole 43 from which the holding pin 31 has moved, and tightens the flexible arm band 11.

  On the other hand, even if the fastening belt 4 is about to move in the opening direction with the holding pin 31 engaged with the holding hole 43, the holding pin 31 is held by the urging force of the spring 35 and the shaft support position of the shaft 32. The pin 31 does not come out of the holding hole 43 and maintains the engagement state with the holding hole 43, so that the tightened position of the tightened flexible arm band 11 is maintained. In other words, the holding mechanism 3 can effectively use the space to improve the mechanical strength of the holding mechanism 3 and hold it firmly, and to reduce the size of the holding mechanism 3. Further, since the holding strength can be calculated separately from the tightening mechanism 2, the design can be easily performed.

  In the holding mechanism 3, the release lever 36 is connected to the holding pin 31 via the connecting portion 37, and the holding pin 31 is flexible when releasing the tightening of the flexible armband 11. It is pushed in the direction of the sexual arm band 11. By this operation, as shown in FIG. 7, the connecting portion 37 and the holding pin 31 rotate counterclockwise, and the holding pin 31 comes out of the holding hole 43, so that the fastening belt 4 is opened. , And tightening of the flexible armband 11 is released. That is, by pressing the release lever 36, the flexible armband 11 can be reliably loosened, and the operability is improved.

<Shooting>
FIG. 8 is a schematic enlarged perspective view for explaining the structure of the shooting according to one embodiment of the armband for a blood pressure monitor of the invention.
FIG. 9 is a schematic enlarged plan view for explaining the structure of the shooting according to an embodiment of the armband for a blood pressure monitor of the present invention.
8 and 9, the camera 21 includes a bottomed cylindrical camera body 210, a pinion gear 22 that is screwed in a state where a part of the camera body 210 is fitted inside the camera body 210, and the camera body 210. And a bottomed cylindrical wheel that is rotatably provided at the bottom of the imaging body 210 (opposite to the pinion gear 22). 214 and a pair of leaf springs 213 which are formed in a substantially U-shape and are arranged so as to be point-symmetric with respect to the center of the shooting 21.

  The leaf spring 213 has a structure in which one end is screwed to the wheel 214, the other end is movably contacted with the inner side surface of the wheel 214, and the contact surface on the side of the pawl wheel 211 is substantially opposed to the pawl 212. . The leaf spring 213 functions as a detent stop in the ratchet mechanism having a torque limiter function. That is, when the user rotates the wheel 214 in the opening direction, the leaf spring 213 climbs over the slope of the pawl 212, so that the pinion gear 22 does not rotate in the opening direction and is maintained in a stopped state. On the other hand, when the wheel 214 is rotated in the tightening direction with a torque smaller than the set tightening torque, the contact surface of the leaf spring 213 pushes the pawl 212, and the pawl wheel 211, the photographing body 210 and the pinion gear 22. Rotates in the tightening direction. When the wheel 214 is rotated in the tightening direction with a torque greater than the set tightening torque, the contact surface of the leaf spring 213 comes into contact with the pawl 212, but the leaf spring 213 is deformed and gets over the pawl 212. The pinion gear 22 does not rotate in the tightening direction and is maintained in a stopped state.

  As described above, the photographing 21 of the present embodiment includes the ratchet mechanism that rotates the pinion gear 22 in the tightening direction and the torque limiter mechanism, and the torque limiter mechanism avoids the problem that the user is overtightened. In addition, it is possible to securely tighten to a tightening position preferable for measurement. Further, the ratchet mechanism prevents the holding mechanism from being damaged even if the user accidentally rotates the shooting 21 with a strong force in the direction of loosening.

The usage method and operation of the sphygmomanometer armband 1 having the above-described configuration will be described.
First, the user of the sphygmomanometer armband 1 for measuring blood pressure presses the release lever 36 toward the flexible armband 11. As a result, the sphygmomanometer arm band 1 is moved in the opening direction by the restoring force of the tightening belt 4 and / or the flexible arm band 11, and the flexible arm band 11 and the air The circumference of the bag 12 is increased.
Subsequently, the user inserts, for example, the left arm into the air bag 12 with the sphygmomanometer armband 1 placed horizontally so that the photographing 21 faces upward.

  Next, the user rotates the photographing 21 in the clockwise direction (tightening direction). By this operation, the pinion gear 22 feeds the rack 42 in the tightening direction, and the holding mechanism 3 causes the holding belt 31 to repeatedly pull out and engage with the holding hole 43 while the tightening belt 4 moves in the tightening direction. It moves and the circumference of the flexible armband 11 and the air bag 12 decreases. At this time, if there is a gap between the left arm and the air bag 12, the photographing 21 can be rotated with a small force.

  Subsequently, when the user further rotates the photographing 21 in the clockwise direction (tightening direction), the circumference of the flexible armband 11 and the air bag 12 decreases, and the space between the left arm and the air bag 12 decreases. The gap disappears and the torque for rotating the camera 21 increases. For this reason, the user rotates the photographing 21 with a force corresponding to the torque. In response to the gradually increasing torque, the shooting 21 is rotated with a greater force, and when the set torque is reached, the torque limiter mechanism of the shooting 21 is activated and the wheel 214 of the shooting 21 rotates idle. At this time, since the holding pin 31 is already engaged with the holding hole 43, the tightening state of the flexible armband 11 is maintained well.

  Next, air is sent to the air bag 12 and the blood pressure is measured. When air is supplied to the air bag 12, a large external force acts on the fastening belt 4 in the circumferential direction. As described above, the holding pin 31 is engaged with the holding hole 43 of the fastening belt 4. Since it is inserted, the tightening position of the flexible armband 11 can be held.

Next, the blood pressure measurement result is displayed, and when the air is removed from the air bag 12, the user presses the release lever 36. As a result, the sphygmomanometer arm band 1 is moved in the opening direction by the restoring force of the tightening belt 4 and / or the flexible arm band 11, and the flexible arm band 11 and the air The circumference of the bag 12 is increased.
Subsequently, the user takes out the left arm from the air bag 12, returns the sphygmomanometer arm band 1 to the original location, and ends the blood pressure measurement.

  Thus, according to the sphygmomanometer belt 1 of the present embodiment, the tightening mechanism 2 and the holding mechanism 3 have a structure excellent in mechanical strength, thereby improving durability and downsizing. it can. Furthermore, since the flexible armband 11 can follow the arm shape, measurement errors can be prevented and blood pressure measurement accuracy can be improved. Furthermore, since the photographing 21 and the release lever 36 can be reliably operated with one hand, it is possible to wipe out the conventional sense that the work of tightening the sphygmomanometer armband 1 is cumbersome.

As mentioned above, although the preferable embodiment was shown and demonstrated about the armband for blood pressure monitors of the present invention, the armband for blood pressure monitors concerning the present invention is not limited only to the above-mentioned embodiment, and is the scope of the present invention. Needless to say, various modifications can be made.
For example, although the rack 42 and the holding hole 43 are formed in the fastening belt 4 in the above embodiment, the present invention is not limited to this. Although not shown, for example, the rack 42 and the holding hole 43 may be formed on a thick flexible armband or a belt formed integrally with the flexible armband 11. Further, the rack 42 and the holding hole 43 are formed in a thick flexible armband or a belt integrally formed with the flexible armband 11, and the rack 42 is also formed in the fastening belt 4. Further, the holding hole 43 may be formed.

Moreover, in the said embodiment, although it has set it as the structure which a user rotates the taking 21 by hand, it is not limited to this. For example, although not shown, the pinion gear 22 may be rotated using driving means such as a motor instead of the shooting 21. If it does in this way, fastening of flexible arm belt 11 can be automated, and usability can be improved more.
Furthermore, in the above embodiment, the pinion gear 22 is used as the rack feeding means, and the rotational movement of the pinion gear 22 is converted into the linear movement of the rack 42. However, the rack feeding means is not limited to the pinion gear 22. For example, instead of the pinion gear 22, a worm gear (or simply worm) may be used to convert the rotational motion of the worm gear (or simply worm) into the linear motion of the rack 42.

In the above embodiment, the opening 41 is formed at the other end of the fastening belt 4, and the rack 42 is formed on one side (upper side) of the opening 41. It is not limited to.
For example, as shown in FIG. 10, an opening 41a is formed at one end in the longitudinal direction, a rack 42a is formed below the opening 41a, and an opening 41 is formed at the other end. And a fastening belt 4a in which a rack 42 is formed on the upper side of the opening 41 may be used. In this way, the tightening distance with respect to the rotation angle of the pinion gear 22 can be doubled, and the mechanical strength of the tightening mechanism 2 can be improved.
Further, as shown in FIG. 11, an opening 41b is formed at one end in the longitudinal direction, a rack 42 is formed below the opening 41b, and a rack is formed above the opening 41b. A pinion gear 22b that is screwed into the pinion gear 22 and screwed into the rack 42b may be provided by using the fastening belt 4b formed with 42b, and a double rack structure may be adopted. In this way, the movement of the fastening belt 4b in the longitudinal direction can be performed in a well-balanced manner, and the mechanical strength of the fastening mechanism can be improved.

1 shows a schematic perspective view of an embodiment of an arm band for a blood pressure monitor of the present invention. FIG. The schematic perspective view of the state where the protective cover concerning one Embodiment of the wristband for blood pressure monitors of this invention was removed is shown. FIG. 3 shows a schematic top view of FIG. 2. FIG. 3 shows a schematic side view of FIG. 2. The schematic sectional drawing of the front direction for demonstrating the fastening mechanism and holding | maintenance mechanism concerning one Embodiment of the wristband for blood pressure monitors of this invention is shown. The schematic expanded sectional view of the upper surface direction for demonstrating the fastening mechanism and holding | maintenance mechanism concerning one Embodiment of the wristband for blood pressure monitors of this invention is shown. The schematic expanded sectional view of the upper surface direction for demonstrating the state by which the open lever was pressed concerning one Embodiment of the wristband for blood pressure monitors of this invention is shown. FIG. 2 is a schematic enlarged perspective view for explaining the structure of a shooting according to an embodiment of the armband for a blood pressure monitor of the present invention. The schematic enlarged plan view for demonstrating the structure of the imaging | photography concerning one Embodiment of the wristband for blood pressure monitors of this invention is shown. The schematic enlarged plan view for demonstrating the belt for fastening concerning the 1st application example of one Embodiment of the arm band for blood pressure monitors of this invention is shown. The schematic enlarged plan view for demonstrating the belt for fastening concerning the 2nd application example of one Embodiment of the wristband for blood pressure monitors of this invention is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Blood pressure monitor arm band 2 Tightening mechanism 3 Holding mechanism 4, 4a, 4b Tightening belt 11 Flexible arm band 12 Air bag 13 Protective cover 20 Base 21 Shooting 22, 22b Pinion gear 23 Rotating shaft 24 Connection Plate 25 Locking portion 26 Protruding portion 27 Contact plate 31 Holding pin 32 Shaft 33 Shaft 34 Bolt 35 Spring 36 Release lever 37 Connecting portions 41, 41a, 41b Opening portions 42, 42a, 42b Rack 43 Holding hole 44 Through hole 121 Pipe 201 Groove 210 Shooting body 211 Claw wheel 212 Claw 213 Leaf spring 214 Wheel

Claims (15)

In the bracelet for sphygmomanometer that tightens a part of the living body with the tightening member,
A tightening mechanism including a rack and rack feeding means meshing with the rack;
A holding mechanism including a holding hole and a holding member that engages with the holding hole;
The sphygmomanometer wristband, wherein the rack is formed integrally with the fastening member, and the holding hole is formed in the fastening member.   The sphygmomanometer bracelet according to claim 1, wherein the tightening member has a belt shape.   The sphygmomanometer armband according to claim 1, wherein the tightening member includes a flexible armband, and the rack is formed on the flexible armband.   The tightening member includes a flexible armband and a tightening belt wound around an outer periphery of the flexible armband, and the rack is formed on the tightening belt. The armband for a sphygmomanometer according to claim 1.   5. The rack according to claim 1, wherein the rack is provided on a side surface in the longitudinal direction of the fastening member, and a tooth thickness of the rack is equal to a thickness of the fastening member. An arm band for a blood pressure monitor as described in 1.   The sphygmomanometer wristband according to claim 5, wherein the rack is provided in an opening formed in a longitudinal direction of the fastening member.   The sphygmomanometer wristband according to claim 1, wherein the rack feeding means is a pinion gear, a worm gear or a worm.   The sphygmomanometer bracelet according to claim 1, wherein the holding member is a holding pin.   The tightening belt has a width of 20% to 80% or less of a width of the flexible armband, and is further used in a central portion of the flexible armband. 4. An arm band for a blood pressure monitor according to 4.   The tightening mechanism has an image for rotating the rack feeding means, and the holding mechanism has an urging means for urging the holding member in the engaging direction of the holding hole. When the photographing is rotated in the tightening direction, the holding member comes out of the holding hole against the urging force of the urging means, and the photographing is further rotated in the tightening direction. When the clamping member moves in the clamping direction and the holding hole on the opening direction side of the holding hole moves to the position of the holding member, the holding member has moved by the biasing force. The sphygmomanometer bracelet according to claim 1, wherein the bracelet is inserted into the holding hole.   The sphygmomanometer bracelet according to claim 10, wherein the photographing includes a ratchet mechanism for rotating the rack feeding means in a tightening direction and a torque limiter mechanism.   The sphygmomanometer armband according to any one of claims 1 to 11, wherein the holding mechanism has an open lever for forcibly removing the holding member from the holding hole.   The sphygmomanometer armband according to any one of claims 1 to 12, wherein the tightening mechanism has a driving means for rotating the rack feeding means.   2. The sphygmomanometer wristband according to claim 1, wherein the rack is formed opposite to both ends of the fastening member in the longitudinal direction.   The sphygmomanometer bracelet according to claim 1, wherein the rack is a double rack.

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