JP4952244B2 - Headphone with pulse detection function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a headphone having a pulse detecting function and, when listening the music alone, preventing the degradation of the similar function and wear feeling to those of the conventional headphone. <P>SOLUTION: The basic structure of this headphone is a vertical in-the-ear type. The pulse detector 3 incorporates a pulse sensor and its interval toward a band root part 1a connected to the side a left housing 2 is connected by a detector cord 4. When non-detecting the pulse as shown in Fig.(a), the left/right sides of the band root part 1a are defined as attachment parts, or clamping retention objects of the pulse detector 3. The distal end of an extension part 2b has a forward curved face and perpendicularly curved to become a pulse detector abutment part, on which the distal end of a main clip piece 3a abuts. When detecting the pulse, an earlobe is clamped by the distal ends of the main clip piece 3a and a sub clip piece 3b. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a headphone having a function capable of detecting a pulse.

In order to manage the intensity of exercise, the pulse (beat) may be measured in real time while exercising.
For example, a pulse sensor is known which is attached to an earlobe (earlobe, earlobe) and measures the pulse rate using transmitted light or reflected light of blood flow in the earlobe (see Patent Document 1).
However, since this pulse sensor is connected to a stationary bicycle ergometer with a cord, it cannot be used for a movement that moves freely such as running and walking.

In addition, there is a pulse sensor attached to an eyeglass-type or ear-hook type frame, and this pulse sensor detects a change in blood flow in the head artery using an ultrasonic Doppler signal (see Patent Document 2).
This pulse sensor is connected by a cord to a display unit attached to a wrist or clothes through a circuit box. The earphone cord can be attached to and detached from the circuit box, and you can hear the Doppler sound.
This pulse sensor can be used for freely moving exercises, but when moving while listening to high-quality music with headphones, it is difficult to use because the glasses-type and ear-mounted frames are in the way.

There is also known a pulse sensor using a transmissive optical sensor that is embodied as a “nipper type” at the lower end of a headphone and can be opened and closed when touching the earlobe (see Patent Document 3).
This pulse sensor includes a light receiving portion at a pad portion of a headphone, and a light source portion is attached to the arm so as to face the light receiving portion via an earlobe.
The speaker and the pulse sensor built in the headphones are connected to the “bio-information feedback module” wirelessly. The “bio-information feedback module” is a mobile portable communication device (mobile phone), a PDA, a wristwatch-type information terminal, or the like.

This pulse sensor is suitable for measuring the pulse rate while listening to high-quality music.
However, because the headphones are equipped with ear pads, they are heavy and have a feeling of pressure on the auricles. Moreover, even when only listening to music, since the light source part must be in contact with the earlobe, the wearing feeling is not good.
In addition, since there is an ear pad, it is easy to block ambient sounds, so there is a problem that it is not suitable for running on a general road.
JP-A-8-66378 JP 2003-47600 A JP 2005-87731 A

  The present invention has been made in order to solve the above-described problems, and has the convenience of being able to detect a pulse and, when only listening to music, the headphones and the same function and wearing feeling as conventional headphones are not impaired. Is intended to provide.

According to the present invention, in a headphone having a pulse detection function, the left and right housings incorporating the electroacoustic conversion unit are connected to the left and right housings , and the headphone cord lead portion is provided. A pulse detector, a pulse sensor, a pair of clip pieces, and a pulse detector that detects a pulse by pinching the earlobe with the pair of clip pieces, and one of the left and right housings or the one housing side A cable connecting the base portion of the band and the pulse detector, a headphone cord drawn out from the headphone cord lead-out portion, and a cord passing through the inside of the band , the one housing or the one At the base of the band on the housing side, the clip piece of the pulse detector is the earpiece Have a mounting portion to be pinching holding object of the clip piece when no pressure clamping of the pulse sensor, the cable, the code, and are electrically connected to an external device via the headphone cord The electroacoustic conversion unit is electrically connected to the external device via the cord and the headphone cord .
Therefore, when listening to music without detecting the pulse, the pulse detector can be removed from the earlobe. As a result, the clip piece of the pulse detector does not bite into the earlobe or the pulse detector touches the cheek and is not worried.
Even if the pulse detector is removed, the pulse detector is not lost because it is connected to the headphone body side by the cord. Since the attachment part on the headphone main body side can be sandwiched by moving this pulse detector a little, handling of the pulse detector becomes easy. Further, when the pulse detector is removed, the pulse detector does not sway during movement.
As a result, the convenience of being able to detect a pulse is provided, and the function and wearing feeling of a headphone that does not include a pulse detector are not impaired when simply listening to music.

According to a second aspect of the present invention, in the headphones having the pulse detection function according to the first aspect, the left and right housings have acoustic emission surfaces provided with a plurality of sound emission holes, The acoustic radiation surface of the housing is arranged on substantially the same plane, and the base portion of the band on the one housing side is set to an angle perpendicular to the acoustic radiation surface side of the one housing at 0 degree. The right and left side surfaces of the base portion of the band on the one housing side are used as the attachment portions.
Since the acoustic radiation surfaces of the left and right housings are arranged on substantially the same plane, the headphones are of the vertical in the ear type. Since it does not have an ear pad, it is lightweight and reduces the feeling of pressure on the ear. Since it is an inner concha type, it is easy to hear ambient sounds, so it is suitable for running on ordinary roads.
Looking at a more specific structure, the base of the band on one housing side is coupled to the acoustic radiation surface side of the one housing, and the clip piece of the pulse detector is attached to the base of this band. Because it is attached, the pulse detector does not hit the ear ring.
Furthermore, the base of this band is connected to the sound emitting surface side of the housing with a vertical angle of 0 degrees and an angle within ± 30 degrees to the left and right. Since the pulse detector is attached along the temporal surface, it is hard to hit the cheek or shake by wind pressure.
If the vertical width of the left and right housings is equal to the horizontal width of the pair of clip pieces of the pulse detector, the pulse detector attached to the mounting portion is integrated with the housing in terms of external pressure. It becomes difficult to be affected.

According to a third aspect of the present invention, in the headphones having the pulse detection function according to the second aspect, when the pulse detector is attached to the attachment portion, the acoustic radiation surface side of the one housing is the clip. It abuts against the tip of the piece.
Therefore, the pulse detector is easily positioned and held.

According to a fourth aspect of the present invention, in the headphone having the pulse detecting function according to the second aspect, the left and right side surfaces of the base portion of the band on the one housing side are substantially parallel surfaces.
Since the mounting part is a substantially parallel surface, it is easy for the user to pick the clip piece, hold the holding part with this clip piece, hold it under pressure, and remove this clip piece from the mounting part. Yes.

According to the present invention, when exercising while listening to music, it is only necessary to pinch the earlobe with the pulse detector only when detecting the pulse, so that it has the convenience of being able to detect the pulse and only listen to the music In this case, the function and effect similar to those of the conventional headphones are not impaired.
In particular, when the basic configuration of the headphone is a vertical in the ear type with a good wearing feeling, the pinch holding object and the pinching holding positioning part of the pulse detector when not in use are formed It becomes easy to do.

FIG. 1 is an explanatory view showing an embodiment of the present invention. It shows the state worn on the user's head.
Fig.1 (a) is a top view, Comprising: A paper upper direction becomes head front.
FIG. 1B is a rear front view (an elevation view seen from the back of the head).
In the illustrated example, a known vertical in the ear type (for example, see Japanese Patent Laid-Open No. 5-336687) is used as the basic structure of the headphones.
The housing is inserted into the concha cavity using the elasticity of the band that spans the head. This type of headphones has little pressure, and it is easy to hear ambient sounds even when the headphones are worn on the ear.

In the figure, 1 is a band (neckband) and 1a is a band root. Reference numeral 2 denotes a housing, 2a denotes a speaker unit housing portion thereof, 2b denotes an extending portion, 2c denotes a pulse detector contact portion, and 2d denotes an acoustic radiation surface. 3 is a pulse detector, 3a is a main clip piece, 3b is a sub clip piece, and 3c is a shaft. 4 is a detector cord, 5 is a headphone cord lead-out portion, and 6 is a headphone cord.
Reference numeral 7 denotes a bush (detector cord outlet), which is provided on the curved upper side surface of the band root portion 1a.
Reference numeral 8 also denotes a bush, which is provided on the lower surface of the main clip piece 3a and closer to the tip. The detector cord 4 is disposed between the bush 8 and the bush 7.
11 is the user's rough head position, and 12 and 13 are the user's rough left ear position and right ear position.

FIG. 1A shows a non-use state of the pulse detector 3, and FIG. 1B shows a use state of the pulse detector 3.
The left and right housings 2 correspond to the left ear position 12 and the right ear position 13. Each housing 2 is connected by a band 1.
The band root portion 1a is coupled perpendicularly to the front surface of the housing 2 (the side with the acoustic radiation surface 2d). If you go around the back of your head and go back up again, you will go over the opposite housing 2 and bend in a U-shape down this time. Connected vertically.

In the example shown in the figure, the neckband type spans the back of the head, but the headband format spans the top of the head.
Each housing 2 has a speaker unit housing portion 2a, an extended portion 2b extending outwardly therefrom with a rectangular cross-sectional shape, and the distal end of the extended portion 2b forms a curved surface in front of the head and is bent at a right angle to detect a pulse. It is comprised by the part used as the container contact part 2c.

In the left and right speaker unit housing portions 2a, the acoustic radiation surfaces 2d from which the acoustic waves generated by the diaphragms of the built-in speaker units are radiated are arranged on substantially the same plane, and both are arranged so as to face the front of the head. Has been.
As a result, as will be described later with reference to FIG. 3, the acoustic radiation surface 2d faces the entrance of the ear canal (position 12b). The acoustic radiation surface 2d is provided with a plurality of sound emitting holes.

The pulse detector 3 incorporates a pulse sensor, and is connected to one of the left and right housings 2 by a detector cord 4 between the band base portion 1a coupled to the left housing 2 side in the illustrated example. Yes. The detector cord 4 enters the inside of the band root portion 1a from a bush 7 provided on the inclined upper side surface of the band root portion 1a.
Note that the detector cord 4 coming out of the pulse detector 3 may enter the inside of the left housing 2, for example, from the extending portion 2b, instead of the band root portion 1a.

The pulse detector 3 includes a pair of clip pieces, and detects a pulse by pinching the earlobe of the left ear with the pair of clip pieces in the use state shown in FIG. 1 (b).
More specifically, as will be described later with reference to FIG. 3, the main clip piece 3a and the sub clip piece 3b are coupled via the shaft 3c, and the main clip piece 3a and the sub clip piece 3b are connected by a torsion coil spring. The front end opening 3d is biased in the closing direction.
In addition, in order to identify the clip piece in the drawing, the main and the sub are distinguished, but there is no particular functional difference between the main and the sub.

FIG. 2 is an enlarged perspective view for explaining a state in which the pulse detector 3 is attached to the left band base portion 1a and a state in which the pulse detector 3 is detached, and is seen from the left rear of the head and slightly above.
In the figure, the same parts as those in FIG.
When the pulse is not detected as shown in FIG. 2A, the left and right side surfaces of the curved band base portion 1 a are set as attachment portions to be held by the pulse detector 3. By opening the tip opening 3d (see FIG. 3 (b)) of the main clip piece 3a and the sub clip piece 3b of the pulse detector 3, and inserting and pinching the attachment portion from the front of the head, the pulse detector 3 is clamped and held in the housing 2 in a combined state.

The illustrated band root portion 1a is adjacent to the inside of the pulse detector abutting portion 2c, is erected from the front surface (the same direction as the acoustic radiation surface) of the extending portion 2b of the housing 2, and is substantially perpendicular to the front surface. Are so coupled.
Since the left and right side surfaces of the band root portion 1a are designed to be substantially parallel surfaces (A and B in FIG. 3A), the band root portion 1a is sandwiched between the tips of the main clip piece 3a and the sub clip piece 3b. The operation of holding the pressure or removing it from the band root 1a is easy.

By sandwiching the band root 1a, the pulse detector 3 is integrated with the basic structure of the headphones. At this time, the pulse detector 3 is positioned by the front end of the main clip piece 3a of the pulse detector 3 coming into contact with the surface of the pulse detector abutting portion 2c facing the front of the head.
Since the horizontal width (vertical width in the illustrated state) of the main clip piece 3a and the sub clip piece 3b is designed to be equal to the vertical width of the housing 2, it is integrated with the housing 2 in terms of its outer shape, When the detector 3 is in the holding pressure holding state, it is less susceptible to wind pressure. Further, the outer surface of the pulse detector 3 (the outer surface of the main clip piece 3a) and the housing 2 are not stepped at the pulse detector abutting portion 2c, and are not easily affected by wind pressure even at a continuous point.

Next, when detecting a pulse, as shown in FIG. 2 (b), the pulse detector 3 is removed from the band root 1a of the left ear, and as shown in FIG. The earlobe (left ear position 12) is sandwiched between 3a and the tip of the sub clip piece 3b, and the pulse is detected based on the same principle as the conventional pulse detector.
In order to change the object to be sandwiched between the ends of the main clip piece 3a and the sub clip piece 3b, the detector cord 4 is preferably a flexible cord having elasticity so that it can be easily bent. .
As shown in FIG. 2 (a), if the detector cord 4 has a length corresponding to a loop of one turn, the cord length is not wasted and hardly shakes.
If the detector cord 4 is lengthened, the pulse can be detected with the earlobe of the right ear by clamping the earlobe (right ear position 13) on the opposite side with the main clip piece 3a and the sub clip piece 3b.

Again, returning to FIG.
The output signal of the pulse sensor built in the pulse detector 3 reaches the headphone cord lead-out section 5 through the detector cord 4 and a cord passing through the band 1 and through the headphone cord 6 an external device (not shown) (for example, , A portable unit mounted on the user's arm or torso).
On the other hand, the music signal supplied from the external device via the headphone cord 6 is a speaker unit (21 in FIG. 3) built in the left and right housings 2 through a cord passing through the inside of the band 1 from the headphone cord lead-out portion 5 . Is supplied to and released. Instead of the headphone cord 6, the headphone and the portable unit may be connected to each other wirelessly.

  The portable unit has functions such as processing the pulse sensor signal to count the pulse rate, displaying and storing the pulse rate, and storing and reproducing the music data. The music of the tempo according to the pulse rate is selected, the exercise intensity is managed by the pulse rate, and the music song of the tempo according to the appropriate exercise intensity is selected.

FIG. 3 is an explanatory diagram showing an outline of the internal configuration of the housing 2 and the pulse detector 3 shown in FIG. In the figure, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals.
FIG. 3A is an explanatory view showing the internal configuration of the housing 2 together with a rough cross-sectional structure of the left ear position 12.
12a is the concha cavity, 12b is the external auditory canal, 12c is the tragus, and 12d is the position of the tragus.

The speaker unit housing portion 2a is housed in the concha cavity (position 12a). The front surface of the speaker unit housing portion 2a corresponds to the acoustic radiation surface 2d, and a plurality of sound emission holes 2e are provided. The sound emission holes 2d are unevenly provided so as to face the entrance of the ear canal (position 12d).
Reference numeral 21 denotes a speaker unit, for example, a dome type dynamic speaker.

In the pulse detector 3 shown in FIG. 3 (b), a torsion coil spring 22 for clamping is provided around the shaft 3c, and both ends of the torsion coil spring 22 are inside the respective rear ends of the main clip piece 3a and the sub clip piece 3b. It is locked to. The torsion coil spring 22 biases the main clip piece 3a and the sub clip piece 3b in the direction in which the tip opening 3d is closed. The biasing mechanism is not limited to the illustrated one.
In the case of a pulse sensor that uses transmitted light of blood flow, opposing light emitting elements 23 and light receiving elements 24 are accommodated in the vicinity of the distal end opening 3d of the main clip piece 3a and the sub clip piece 3b. The arrangement of the light emitting element 23 and the light receiving element 24 may be reversed. The pulse detector 3 may incorporate a circuit board on which a head amplifier or the like that amplifies the signal of the light receiving element 24 is mounted.

FIG. 4 is an explanatory diagram of a specific example in which the shapes of the housing 2 and the band base 1a shown in FIGS. 1 to 3 are changed. FIG. 4A illustrates the pulse detector 27 except for the pulse detector 27, and FIG. 4B illustrates only the pulse detector 27. The same parts as those in FIGS. 1 to 3 are denoted by the same reference numerals.
In FIG. 4A, 25 is a band, 26 is a housing, 26a is a speaker unit housing portion, 26b is an extending portion, 26c is a pulse detector contact portion, and 26d is an acoustic radiation surface.

  The band 25 is substantially the same as the band 1 shown in FIGS. However, the distance between the left and right side surfaces (A and B in the figure) of the band root portion 25a where the pulse detector 27 is attached is widened forward. In the illustrated example, the angle formed by the left and right side surfaces is 20 degrees, but the left and right side surfaces may approach a parallel surface (the angle formed by the left and right side surfaces is 0 degrees).

In the pulse detector 27 shown in FIG. 4B, 27a is a main clip piece, 27b is a sub clip piece, 27c is a shaft, and 27d is a tip opening. This figure shows a state in which the main clip piece 27a and the sub clip piece 27b clamp the band root portion 25a shown in FIG. The function of the pulse detector 26 is the same as that of the pulse detector 3 described with reference to FIGS. However, the shape is changed so that it can be attached to the band root portion 25a described above.
Corresponding to the angle formed by the left and right side surfaces of the band root portion 25a described above, the attachment angle (the angle formed by C and D) of the main clip piece 27a and the sub clip piece 27b is determined.

Since the band base portion 25a and the main clip piece 27a and the sub clip piece 27b that pinch the band firmly engage with each other, the pulse detector 3 does not fall off the band root portion 25a carelessly.
The housing 26 is substantially the same as the housing part 2 described with reference to FIGS. However, it is designed to match the shape of the band root portion 25a and the pulse detector 27.
Similarly to the pulse detector 3 shown in FIG. 1, the horizontal width of the main clip piece 27a and the sub clip piece 27b is designed to be equal to the vertical width of the housing 26, and the outer surface of the pulse detector 27 (the main clip piece 27a and the housing 26 are continuous with no step at the pulse detector contact portion 26c.

FIG. 5 is an explanatory diagram of another specific example in which the shapes of the housing 2 and the band root portion 1a shown in FIGS. 1 to 3 are changed. The same parts as those in FIGS. 1 to 3 are denoted by the same reference numerals.
In FIG. 5A, 31 is a band, 31a is a band root portion, and 7 is a bush. 32 is a housing, 32a is a speaker unit housing portion, 32b is an extending portion, 32c is a pulse detector contact portion, and 32d is an acoustic radiation surface.
In this specific example, the band root portion 31a is U-shaped forward at an angle of +30 degrees to the left with respect to a normal line (0 degrees) perpendicular to the front surface (on the acoustic radiation surface 32d side) of the extending portion 32b. Stick out.
The pulse detector 3 is integrated with the housing 32 and held under pressure by sandwiching the band base portion 31a (attachment portion). The pulse detector abutting portion 32c has an inclined surface that is retreated by +30 degrees to the left from the front surface of the extending portion 32b. The tip of the main clip piece 3a of the pulse detector is positioned by the pulse detector contact portion 32c.

In FIG.5 (b), 41 is a band, 41a is a band base part, 7 is a bush. Reference numeral 42 denotes a housing, 42a denotes a speaker unit housing portion, 42b denotes an extending portion, 42c denotes a pulse detector contact portion, and 42d denotes an acoustic radiation surface.
In this specific example, the band root portion 41a protrudes forward in a U shape at an angle of a normal line perpendicular to the front surface (on the acoustic radiation surface 42d side) of the extending portion 42b.
The pulse detector 3 is integrated with the housing 42 and held under pressure by sandwiching the band base portion 41a (attachment portion). The leading end portion of the main clip piece 3a and the leading end portion of the sub clip piece 3b of the pulse detector 3 are both positioned by the pulse detector abutting portion 42c in front of the extending portion 42b.

In FIG.5 (c), 51 is a band, 51a is a band base part (attachment part), 7 is a bush. 52 is a housing, 52a is a speaker unit housing portion, 52b is an extending portion, 52c is a pulse detector contact portion, and 52d is an acoustic radiation surface.
In this specific example, the band root portion 51a protrudes in a U-shape forward at an angle of −30 degrees to the right with respect to the normal line of the front surface (the acoustic radiation surface 52d side) of the extending portion 52b.
The pulse detector 3 is integrated with the housing 52 and held under pressure by sandwiching the band root 51a. The pulse detector contact portion 52c has an inclined surface that is raised to −30 degrees to the right from the front surface of the extending portion 52b. The distal end portion of the sub clip piece 3b of the pulse detector 3 is positioned by the pulse detector contact portion 52c.

As described above, the angle at which the pulse detector 3 is coupled to the base of the band does not have to be perpendicular to the front surface of the extension, and may hit the user's face or swing away from the face due to wind pressure. As long as it is difficult to do.
Therefore, as shown in FIGS. 5A to 5C, it is desirable that the normal line perpendicular to the front surface of the extending portion is 0 degree and the right and left are coupled at an angle within a range of ± 30 degrees. .

In FIG. 5A and FIG. 5C described above, the pulse detector 3 and the housings 32, 42, and 52 have steps at the pulse detector abutting portions 32c and 52c. You may design the outer shape of the housing parts 32 and 52 so that it may continue. Similar to the pulse detector 3 shown in FIG. 1, the horizontal width of the main clip piece 3 a and the sub clip piece 3 b may be designed to be equal to the vertical width of each housing 32, 42, 52.
The band root portions 31a, 41a, 51a shown in FIGS. 5 (a) to 5 (c) all have left and right side surfaces that are substantially parallel to each other, but as described with reference to FIG. As shown in FIG. 4, in the band base portions 31 a, 41 a, 51 a, the interval between the left and right side surfaces of the portion to which the pulse detector is attached is shaped to expand forward from the housings 32, 42, 52, and is adapted to this. A simple pulse detector 27 may be used.

In the above description, when the pulse is not detected, the pulse detector 3 sandwiches the band base portion as an attachment portion. Instead of this, a part on the housing 2 side, for example, the tip of the extending part 2b may be used as an attachment part, and the attachment part may be sandwiched.
In FIG.5 (d), 61 is a band, 61a is a band base part (attachment part), 7 is a bush. 62 is a housing, 62a is a speaker unit accommodating portion, 62b is an extending portion, 62c is a pulse detector contact portion, and 62d is an acoustic radiation surface.

In this specific example, the band root portion 61a protrudes forward in a U-shape at an angle of a normal line of the front surface (acoustic radiation surface 62d side) of the extending portion 62b.
The pulse detector 3 is integrated with the housing 62 and held under pressure by sandwiching the end portion of the extending portion 62b. Therefore, the pulse detector 3 is attached on the extension of the extending part 62b.

In the illustrated example, since the width of the end portion of the extending portion 62b is larger than the opening width of the distal end opening portion 3d of the pulse detector 3, the end portion of the extending portion 62b is notched. The leading end portion of the main clip portion 3a of the pulse detector contacts the pulse detector contact portion 62c so as to fit into the notch.
In the illustrated example, at this time, the distal end portion of the sub clip piece 3b abuts on the planar left side surface of the band root portion 61a.
In FIG. 5D described above, the end portion of the extending portion 62b has front and rear side surfaces that are substantially parallel to each other. Instead of this, the interval between the front and rear side surfaces may be widened in the direction away from the root of the notch (the left side in the figure). For example, the angle formed by the front and rear side surfaces is 20 degrees or less.

5 (a) to 5 (d), the horizontal widths of the main clip piece 3a and the sub clip piece 3b are the vertical widths of the housings 32, 42, 52, and 62, as in the pulse detector 3 shown in FIG. Should be designed to be equal to
The specific examples shown in FIGS. 4 and 5 are the structures of the housing 3 and the band base portions 31a to 61a on the left ear (position 12) side where the pulse detector 3 is provided.
On the other hand, the structure of the housing and the base of the band on the right ear (position 13) side need not be the same as that on the left ear (position 12) side shown in FIGS. The same structure as shown in FIG.

In the above description, the basic structure of the headphones has been described as an example of the vertical in the year format.
However, as long as it is possible to provide a mounting portion that can hold and hold the pulse detector when not in use, the headphone may be based on another basic structure.
At that time, if the mounting portion has two planes that are substantially parallel, the user can pick the clip piece and hold the holding portion with the clip piece to hold it, or remove the clip piece from the mounting portion. This makes it easier to perform operations. Further, when the holding surface is held, at least a part of the tip of the pulse detector has a contact surface with which the pulse detector comes into contact, so that the clip piece can be easily held.

It is explanatory drawing which shows one Embodiment of this invention. It is an expansion perspective view for demonstrating the state which attached the pulse detector to the band base part of the left ear, and the state removed from the band base part. It is explanatory drawing which shows the outline | summary of the internal structure of the housing shown in FIG. 1, and a pulse detector. It is explanatory drawing of the specific example which changed the shape of the housing shown in FIGS. 1-3, and the band base part. It is explanatory drawing of the other specific example which changed the shape of the housing shown in FIGS. 1-3, and the band base part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Band, 1a ... Band base part, 2 ... Housing, 2a ... Speaker unit accommodating part, 2b ... Extension part, 2c ... Pulse detector contact part, 2d ... Acoustic radiation surface, 3,27 ... Pulse detector, 3a, 27a ... main clip piece, 3b, 27b ... sub-clip piece, 3c, 27c ... shaft, 3d, 27d ... tip opening, 7, 8 ... bush, 12 ... left ear position, 12a ... ear concha space position, 12b: position of the external auditory canal, 12c: position of the tragus, 12d: position of the tragus, 13 ... position of right ear
22 ... Torsion coil spring, 23 ... Light emitting element, 24 ... Light receiving element,
25, 31, 41, 51, 61 ... band, 25a, 31a, 41a, 51a, 61a ... band base, 26, 32, 42, 52, 62 ... housing, 26a, 32a, 42a, 52a, 62a ... speaker unit Accommodating part, 26b, 32b, 42b, 52b, 62b ... extending part, 26c, 32c, 52c, 62c ... pulse detector contact part, 26d, 32d, 42d, 52d, 62d ... acoustic radiation surface

Claims (4)

Left and right housings with built-in electroacoustic conversion units;
With connecting left and right housing, a band for chromatic headphones code extraction unit,
A pulse detector that incorporates a pulse sensor, includes a pair of clip pieces, and detects a pulse by pinching an earlobe with the pair of clip pieces;
A cable connecting one of the left and right housings or the base of the band on the one housing side and the pulse detector ;
A headphone cord drawn out from the headphone cord lead-out portion;
Having a cord passing through the inside of the band ;
The root portion of the band at the one housing or said one housing side, have a mounting section for the clip piece of the pulse detector is pinching holding object of the clip piece when not nipped the earlobe ,
The pulse sensor is electrically connected to an external device via the cable, the cord, and the headphone cord,
The electroacoustic conversion unit is electrically connected to the external device via the cord and the headphone cord.
A headphone with a pulse detection function characterized by this. The left and right housings have an acoustic radiation surface provided with a plurality of sound emission holes,
The acoustic radiation surfaces of the left and right housings are arranged on substantially the same plane,
The base of the band on the one housing side is coupled to the sound radiation surface side of the one housing at an angle of ± 30 degrees to the left and right, with the angle being perpendicular to 0 degrees,
The left and right side surfaces of the base portion of the band on the one housing side are the mounting portions.
The headphone provided with the pulse detection function according to claim 1. When the pulse detector is attached to the attachment portion, the acoustic radiation surface side of the one housing is in contact with the tip portion of the clip piece.
The headphone provided with the pulse detection function according to claim 2. The left and right side surfaces of the base portion of the band on the one housing side are substantially parallel surfaces,
The headphone provided with the pulse detection function according to claim 2.

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