JP2020075463A - recorder - Google Patents

Abstract

To provide a recorder which has a simple structure and yet is able to detect opening or closing of an openable case with high reliability.SOLUTION: A recorder of the invention includes: an openable case 110 which can be in a closed state in which the openable case 110 closes a recording paper storage part and an open state in which the openable case 110 exposes the recording paper storage part; a rotary member 310 which rotates in conjunction with opening or closing operation of the openable case 110; and an openable sensor 400 which converts movement of the rotary member 310 in a rotation direction into movement in a rotation radial direction and pushes in a push-in switch 402 to detect opening or closing of the openable case 110.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a recorder that prints on recording paper such as roll paper and folding paper.

  2. Description of the Related Art Conventionally, for example, in an electrocardiograph, there is one in which a recorder is integrally provided in a device main body for measuring and displaying an electrocardiogram so that a measurement result can be recorded on a recording paper (for example, refer to Patent Document 1). In a recorder of an electrocardiograph (hereinafter, simply referred to as a recorder), continuous paper such as roll paper or folding paper is usually used as recording paper. Further, the electrocardiograph generally employs a thermal recording method using a thermal head in order to simplify and downsize the device.

JP, 2015-110467, A

  By the way, in the recorder as described above, an opening / closing case is provided, and the opening / closing case can be in a closed state in which the recording sheet accommodation section is closed and an open state in which the recording sheet accommodation section is exposed. There is. The user closes the open / close case at the time of printing and opens the open / close case at the time of taking in / out the recording paper.

  Further, the recorder is provided with an open / close sensor that detects the open / closed state of the open / close case. For example, if the open / close case is not completely closed and the open / close sensor detects this and tries to operate the recorder in that state, the recorder will stop printing, or a warning will be displayed on the display to inform this. .

  Here, as the opening / closing sensor, in order to avoid erroneous detection as much as possible, a mechanical sensor is often used instead of an optical sensor. A push-in switch is generally used as the mechanical sensor. For example, when the opening / closing case is in the closed state, the protrusion provided on the opening / closing case pushes the push-type switch to put the opening / closing case in the closed state (in other words, the opening / closing case is in the locked state. That).

  However, the push switch may be damaged due to the push switch being pushed too far by the protrusion of the opening / closing case.

  As one method of avoiding this, it is conceivable to push the push-in switch through some sort of shock-absorbing component. However, this causes an increase in the number of components and a complicated structure.

  The present invention has been made in consideration of the above points, and provides a recorder that has a simple structure and can reliably detect the opening / closing of the opening / closing case.

One aspect of the recorder of the present invention is
A recorder that prints on recording paper,
An opening / closing case capable of taking a closed state that closes the recording paper accommodation portion and an open state that exposes the recording paper accommodation portion,
A rotating member that rotates in conjunction with the opening / closing operation of the opening / closing case,
An opening / closing sensor that detects opening / closing of the opening / closing case by converting all or part of the movement in the rotation direction of the rotating member into movement in the rotation radius direction and pressing the push switch.
It is equipped with.

  According to the present invention, a simple structure is obtained by converting the movement in the rotation direction of the rotating member that rotates in conjunction with the opening / closing operation of the opening / closing case into the movement in the rotation radius direction and pressing the push-in switch. However, it is possible to realize a recorder that can reliably detect the opening and closing of the open / close case.

Top view of the electrocardiograph according to the present embodiment Top view of the electrocardiograph when the case is open Perspective view of the electrocardiograph when the open / close case is open Diagram used to explain the roll paper mounting section Diagram used to explain the roll paper mount and open / close sensor 6A is a view showing a neutral state of the roll paper mounting portion, FIG. 6B is a view showing a retracted state of the roll paper mounting portion, and FIG. 6C is a view showing a protruding lock state of the roll paper mounting portion. A-A 'sectional view of FIG. 4 focusing on the relationship between the base portion and the case FIG. 8A is a diagram showing the states of the roll paper mounting portion and the opening / closing sensor when the opening / closing case is in the open state, and FIG. 8B is a diagram showing the states of the roll paper mounting portion and the opening / closing sensor when the opening / closing case is in the closed state.

  Embodiments of the present invention will be described below with reference to the drawings.

<Overall configuration of electrocardiograph>
FIG. 1, FIG. 2 and FIG. 3 are diagrams showing an external configuration of an electrocardiograph 10 according to an embodiment of the present invention. More specifically, FIG. 1 is a top view showing a state in which the opening / closing case 110 is closed, FIG. 2 is a top view showing a state in which the opening / closing case 110 is opened, and FIG. 3 is a state in which the opening / closing case 110 is opened. It is a perspective view showing.

  The electrocardiograph 10 is roughly divided into a recorder 100 and a device body 200.

  The device main body 200 is provided with a display unit 210, an operation unit 220, and the like. Further, inside the apparatus main body 200, a control unit for performing calculation and operation control, an amplification unit, an interface unit for connecting an electrocardiographic electrode, and the like are provided. The display unit 210 displays an electrocardiogram, which is the measurement result. The biometric information that is the measurement result may be acquired by calculation in its own device, or may be received and acquired from another device. The operation unit 220 is provided with various keys, a power switch, a start / stop switch and the like (not shown). In addition, in the electrocardiograph 10 of the present embodiment, the display unit 210 has a touch panel configuration, various display screens and operation menu screens are displayed on the display unit 210, and various settings and operation instructions are input using the display screen. You can also do it.

<Outline of recorder>
As can be seen from FIG. 1, the recorder 100 is provided with an open button 101, a paper exit 102, and an opening / closing case 110. The recording paper on which the electrocardiogram is recorded is ejected from the paper ejection port 102.

  The recorder 100 is provided with a lock claw 103 (FIGS. 2 and 3) that interlocks with the open button 101, and the lock claw 103 engages with the lock claw 104 (FIG. 3) provided on the inner surface of the opening / closing case 110. As a result, the open / close case 110 is locked in the closed state. When the open button 101 is pressed by the user, the lock claw 103 is rotated to the lock release position in conjunction with this, whereby the lock of the open / close case 110 is released. When the opening / closing case 110 is rotated in the opening direction by the user after the lock is released, the opening / closing case 110 is brought into an open state as shown in FIGS. 2 and 3.

  Further, the recorder 100 is provided with a thermal head 120, a platen roller 130, a recording paper container 140, and the like. The platen roller 130 is attached to the open end of the opening / closing case 110, contacts the thermal head 120 when the opening / closing case 110 is in the closed state as shown in FIG. 1, and opens as shown in FIGS. 2 and 3. When it is in the state, it is separated from the thermal head 120.

  When the opening / closing case 110 is closed as shown in FIG. 1, a recording sheet such as a folding sheet enters from below between the thermal head 120 and the platen roller 130, and the recording sheet is rotated upward by the rotation of the platen roller 130. Paper is fed, and at the same time, thermal recording is performed by the thermal head 120. In this way, the electrocardiogram is recorded on the recording paper such as folding paper.

  Here, the opening / closing case 110 is rotatably supported by a rotating shaft 111. The open / close case 110 can be in a closed state in which the recording paper accommodation unit 140 is closed and an open state in which the recording paper accommodation unit 140 is exposed. The open / close case 110 can be manually rotated about the rotation shaft 111. In the opened state of the opening / closing case 110, the user can put in and take out recording paper such as roll paper and folding paper in the recording paper storage unit 140.

  Inside the recorder 100, a pair of roll paper mounting portions 300 is provided. The roll paper mounting portion 300 is provided on each of the front side and the rear side of the electrocardiograph 10, and holds the roll paper rotatably. Details of the roll paper attachment unit 300 will be described later.

  Further, an opening / closing sensor 400 that detects opening / closing of the opening / closing case 110 is provided in the recorder 100. In the case of the present embodiment, the open / close sensor 400 is provided in the vicinity of the front roll paper mounting portion 300.

<Roll paper mounting part>
4, 5, and 6 are diagrams provided for explaining the roll paper attachment unit 300. Since the front roll paper mounting portion 300 and the rear roll paper mounting portion 300 have substantially the same configuration, the front roll paper mounting portion 300 will be described here. The difference between the front roll paper mounting portion 300 and the rear roll paper mounting portion 300 is that the front roll paper mounting portion 300 has a configuration for operating the open / close sensor 400, whereas That is, the roll paper attachment unit 300 does not have this.

  The roll paper attachment portion 300 has a cylindrical base portion 310 and a paper pressing portion 330 arranged in the hollow portion of the base portion 310.

  The base portion 310 is rotatably attached to the chassis of the recorder 100. One end of a coil spring 311 is attached to the base portion 310. The other end of the coil spring 311 is attached to the chassis of the recorder 100. As a result, the base portion 310 is biased in the opening direction of the open / close case 110 by the coil spring 311.

  Further, the base portion 310 is formed with a first arm 312 with which the contact portion 112 of the opening / closing case 110 abuts and a second arm 313 that operates the opening / closing sensor 400.

  Further, a first cutout 314, a second cutout 315, and a third cutout 316 are formed in a part of the outer peripheral portion of the base portion 310. The first and second notches 314 and 315 are respectively formed in the circumferential direction of the base portion 310. The first cutout 314 is formed closer to the open end side of the base portion 310 than the second cutout 315. The third notch 316 is formed so as to connect the first notch 314 and the second notch 315.

  The paper pressing portion 330 includes a triangular pyramid-shaped projecting / retracting member 331. The retractable member 331 is rotatably attached to the chassis of the recorder 100 via a coil spring 332. As a result, the retractable member 331 is biased by the coil spring 332 in the direction in which the tip portion projects from the base portion 310. That is, the retractable member 331 is retractably housed in the base portion 310, and rotatably supports the roll paper in the protruding state. Further, the retractable member 331 can be rotated relative to the base portion 310.

  A protrusion 333 is formed on the projecting / retracting member 331, and the projection 333 has a first notch 314, a second notch 315, or a third notch 315 depending on the relative position of the projecting / retracting member 331 and the base portion 310 in the rotation direction. Transition to any position of the notch 316.

  Here, the first notch 314 is formed right next to the protrusion 333 when the retractable member 331 is in the protruding state as shown in FIG. 4. Accordingly, the protrusion 333 can enter the first notch 314 when the base portion 310 rotates relative to the retractable member 331 when the retractable member 331 is in the protruding state.

  Next, the operation of the roll paper attachment unit 300 of this embodiment will be described with reference to FIG.

  FIG. 6A is a diagram showing a neutral state of the roll paper mounting portion 300. At this time, the protrusion 333 of the protruding / retracting member 331 is at the position of the third cutout 316, and the protruding / retracting member 331 is in a state of protruding from the base portion 310 in the direction of the roll paper.

  FIG. 6B is a diagram showing a retracted state of the roll paper attachment unit 300. At this time, the protrusion 333 of the retractable member 331 is at the position of the second cutout 315, and the retractable member 331 is retracted into the base portion 310.

  FIG. 6C is a diagram showing a protruding lock state of the roll paper mounting portion 300. At this time, the protrusion 333 of the retractable member 331 is at the position of the first notch 314, and the retractable member 331 is locked in a state of protruding from the base portion 310 in the direction of the roll paper.

When using roll paper When using roll paper, the user turns the retractable member 331 with his / her finger to a neutral state as shown in FIG. 6A, and then pushes the end of the roll paper against the tapered surface of the retractable member 331. While retracting, the retractable member 331 is retracted. Eventually, the retractable member 331 enters the roll paper tube, and the retractable member 331 is brought into a protruding state. In this way, the roll paper is attached to the roll paper attachment unit 300.

  Next, when the user closes the opening / closing case 110, the contact portion 112 of the opening / closing case 110 contacts the first arm 312 of the base portion 310 and rotates the base portion 310. As a result, as shown in FIG. 6C, the base portion 310 rotates relative to the retractable member 331, and the protrusion 333 of the retractable member 331 enters the first notch 314. As a result, the retractable member 331 is restricted to move in the retracting direction by the first notch 314, and is in a protruding lock state in which the protruding state is maintained.

  Therefore, when the open / close case 110 is closed, the retractable member 331 is set in the protruding lock state, so that the retractable member 331 does not retract even when force is applied to the roll paper or the retractable member 331 when the electrocardiograph 10 is moved. . As a result, it is possible to prevent the roll paper from falling off the retractable member 331.

-When using folding paper When using folding paper, the user retracts the retractable member 331 with his / her finger to rotate the retractable member 331 into the retracted state as shown in FIG. 6B. Accordingly, the retractable member 331 can be maintained at the retracted position where it does not interfere with the loading and unloading of the folded paper. In this state, the user takes in and out the folded paper.

  Note that, in FIG. 4 and FIG. 6 and the like, the base portion 310 and the paper pressing portion 330 are extracted and shown in order to simplify the drawing, but in reality, the base portion 310 and the paper pressing portion 330 are the retractable members. The case 331 is covered by the case so that it can appear and disappear. This case is fixed to the chassis of the recorder 100.

  FIG. 7 is a cross section taken along the line A-A ′ of FIG. 4. 7 is a cross-sectional view focusing on the relationship between the base portion 310 and the case 500 described above, and the retractable member 331 and the like are omitted. As can be seen from FIG. 7, the case 500 is formed with ribs that cover the outer peripheral side and the inner peripheral side of the base portion 310. A part of this rib slightly projects into the second notch 315. Therefore, when the protrusion 333 enters the second cutout 315, the protrusion 333 is pressed against the tip of the rib 501 by the biasing force of the coil spring 332. The rib 501 is a separate member from the base portion 310, and it can be said that the protrusion 333 is a contact member with which the retractable member 331 abuts in the second notch 315 while being biased in the protruding direction.

  That is, when the projecting / retracting member 331 is in the retracted position as shown in FIG. 6B and the protrusion 333 enters the second notch 315, the protrusion 333 is not the notch face of the second notch 315 but slightly from the notch face. It is pressed against the protruding rib 501.

  In this state, when the user closes the opening / closing case 110, the contact portion 112 of the opening / closing case 110 contacts the first arm 312 of the base portion 310 and rotates the base portion 310. As a result, the protrusion 333 moves from the position of the second notch 315 to the position of the third notch 316, but since it is supported by the rib 501, it does not move in the protruding direction as shown in FIG. 6A. Do not move. Therefore, even if the opening / closing case 110 is closed, the protruding member 331 does not protrude and is maintained in the retracted position.

<Open / close detection mechanism>
Next, the open / close detection mechanism of the open / close case 110 according to the present embodiment will be described with reference to FIG.

  An open / close sensor 400 is provided near the roll paper mounting portion 300. The open / close sensor 400 includes a sensor body 401, a push switch 402 that can be retracted from the sensor body 401, and a push plate 403. One end of the pushing plate 403 is rotatably attached to the sensor body 401.

  FIG. 8A shows the state of the roll paper mounting portion 300 and the open / close sensor 400 when the open / close case 110 is in the open state. FIG. 8B shows the state of the roll paper mounting portion 300 and the open / close sensor 400 when the open / close case 110 is closed.

  In the open state shown in FIG. 8A, the second arm 313 is separated from the pressing plate 403, the pressing plate 403 is separated from the pressing switch 402, and the pressing switch 402 is not pressed. On the other hand, when the user closes the opening / closing case 110, the first arm 312 is pushed by the contact portion 112 of the opening / closing case 110, and the base portion 310 of the roll paper mounting portion 300 rotates clockwise in FIG. 8. As the base portion 310 rotates, the second arm 313 slides on the outer surface of the pushing plate 403 and rotates the pushing plate 403 in the closing direction.

  When the open / close case 110 shown in FIG. 8B is closed, the pushing surface of the pushing plate 403 completely matches the outer surface of the sensor body 401, and the pushing switch 402 is pushed by the pushing plate 403. As a result, the opening / closing sensor 400 can detect that the opening / closing case 110 is in the closed state.

  When the open / close case 110 is opened from the state of FIG. 8B, the base portion 310 is rotationally driven in the counterclockwise direction in the figure by the pulling force of the coil spring 311. As a result, the roll paper mounting portion 300 and the open / close sensor 400 are in the state shown in FIG. 8A, and the push switch 402 is not pushed in, so that the open / close sensor 400 is in the open state. It detects that

<Effect>
As described above, according to the present embodiment, the open / close case 110 that can be in the closed state in which the recording paper accommodation unit 140 is closed and the open state in which the recording paper accommodation unit 140 is exposed, and the opening / closing operation of the opening / closing case 110. The rotation member (base portion 310) that rotates in conjunction with the rotation member, and all or part of the movement of the rotation member in the rotation direction is converted into movement in the rotation radius direction, and the push switch 402 is pressed to open / close the opening / closing case. By providing the open / close sensor 400 for detecting the open / close state, it is possible to realize the recorder 100 having a simple configuration and capable of reliably detecting the open / close of the open / close case 110.

  That is, the opening / closing case is configured by converting the movement in the rotation direction of the rotating member (base portion 310) that rotates in conjunction with the opening / closing operation of the opening / closing case 110 into the movement in the radial direction of rotation and pressing the push switch 402. Compared with the configuration in which the push-in switch is directly pushed by 110, damage to the push-in switch can be prevented, so that the detection reliability is increased. This is because the amount of movement in the radius direction of rotation does not exceed the radius of rotation predetermined by the length of the rotating member. Further, in the vicinity of the radius of gyration, most of the movement component is in the tangential direction of rotation, and the movement in the radius of gyration is slight, so that the push-in switch can be pushed in softly.

  If the push switch is pressed hard here, the push switch may not return from the pushed state. In the configuration of the present embodiment, the push-in switch can be pushed in softly, so this can be prevented.

  In addition, according to the present embodiment, by using the base portion 310 that restricts the protruding / retracting of the retractable member 331 of the roll paper mounting portion 300 as the rotating member that rotates in conjunction with the opening / closing operation of the open / close case 110, Since it is not necessary to newly provide the rotating member, the configuration can be simplified.

<Other Embodiments>
The above-described embodiments are merely examples of specific embodiments for carrying out the present invention, and the technical scope of the present invention should not be limitedly interpreted by these. That is, the present invention can be implemented in various forms without departing from the gist or the main features thereof.

  In the above-described embodiment, the case where the one whose one end is rotatably attached to the sensor body 401 is used as the push-in plate for pushing the push-in switch 402 is described, but the present invention is not limited to this, and for example, both ends are You may use what was attached to the sensor main body 401 so that it could come in and out freely. The point is that the rotation switch may be configured so that all or part of the movement in the rotation direction of the rotation member is converted into movement in the rotation radius direction and the push switch 402 can be pushed in.

  Further, in the above-described embodiment, the case where the base portion 310 is diverted as the rotating member that rotates in association with the opening / closing operation of the opening / closing case 110 has been described, but a rotating member other than the base portion 310 may be provided. In short, a rotating member that rotates in association with the opening / closing operation of the opening / closing case 110 may be provided.

  Furthermore, in the above-described embodiment, the case where the present invention is applied to the electrocardiograph has been described, but the present invention is not limited to this, and is widely applicable to a recorder that prints on recording paper such as roll paper or folding paper. For example, it can be applied to an electroencephalograph, a pulse wave monitor, a polygraph, a biological information monitor, and the like having a recorder.

  In addition, in this specification, "projecting / retracting" means that the first position protruding in the direction of the roll paper and the second position retracted from the first position can be taken, and simply the base portion. Note that it does not imply a relationship with 310. In particular, the “submerged position” does not mean that the base portion 310 is completely submerged.

  INDUSTRIAL APPLICABILITY The present invention is widely applicable to recorders that print on recording paper such as roll paper and folding paper.

10 Electrocardiograph 100 Recorder 101 Open button 102 Paper ejection port 103, 104 Lock claw 110 Opening / closing case 111 Rotating shaft 112 Abutting part 120 Thermal head 130 Platen roller 140 Recording paper accommodating part 200 Machine body 300 Roll paper mounting part 310 Base part 311 and 332 Coil spring 312 First arm 313 Second arm 314 First notch 315 Second notch 316 Third notch 330 Paper pressing part 331 Retractable member 333 Protrusion 400 Open / close sensor 401 Sensor body 402 Push-in switch 403 Push-in plate 500 case 501 rib

Claims (3)

A recorder that prints on recording paper,
An opening / closing case capable of taking a closed state that closes the recording paper accommodation portion and an open state that exposes the recording paper accommodation portion,
A rotating member that rotates in conjunction with the opening / closing operation of the opening / closing case,
An opening / closing sensor that detects opening / closing of the opening / closing case by converting all or part of the movement in the rotation direction of the rotating member into movement in the rotation radius direction and pressing the push switch.
Recorder equipped with. The open / close sensor is
A conversion member that abuts the rotating member and converts movement of the rotating member in the rotation direction into movement in the rotation radius direction;
A push switch in which the push amount is changed by the movement of the conversion member in the radial direction of rotation,
Has,
The recorder according to claim 1. The recording paper includes roll paper,
The rotating member is a base portion that is provided in a roll paper mounting portion to which the roll paper is mounted and that rotates according to opening and closing of the opening / closing case to restrict the appearance of the retractable member of the roll paper mounting portion.
The recorder according to claim 1 or 2.

Images