JP2016058891A - headphone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a headphone which prevents falling of a sound emission part.SOLUTION: A headphone 1 includes: a head band 2; and sound emission parts 3. Each sound emission part 3 includes: a speaker unit; and a housing 10 which houses the speaker unit. The housing 10 has a cylindrical part 16. An annular protrusion part 17, in which protrusions are formed, is provided on an outer peripheral surface of the cylindrical part 16 of the housing 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to headphones.

  Conventionally, as the above-described headphones, one having a pair of sound emitting units and a headband connecting the pair of sound emitting units is known (Patent Document 1).

  As a method of listening to the headphones described above, a user such as a DJ may have a sound emission unit sandwiched between one ear and a shoulder, and apply a sound emission unit to one ear to listen to music. When the user tries such a viewing method, the sound emitting unit may drop off. Also, when trying to listen to the sound emission part immediately on one ear (so-called one-ear monitor), the sound emission part slips from the user's hand or the user drops the sound emission part as an example. Can be mentioned.

Utility Model Registration No. 3107718

  In view of this, an object of the present invention is to provide, for example, a headphone that prevents the sound emitting unit from falling off.

  In order to solve the problem, a headphone described in claim 1 includes a headband and a sound emitting unit, and the sound emitting unit has a housing, and is formed in a cylindrical shape out of the outer surface of the housing. The frictional force in the other part is larger than the frictional force in the other part.

It is a disassembled perspective view which shows one Example of the headphones of this invention. It is sectional drawing in the state which inserted the slider in the sound emission part of the headphones shown in FIG. It is a disassembled perspective view of the headband shown in FIG. FIG. 4 is an enlarged perspective view of the slider shown in FIG. 3. It is a perspective view of the housing main body shown in FIG. It is a perspective view of the cylindrical part and partition member which are shown in FIG. It is a disassembled perspective view of the slider latching | locking part shown in FIG. It is explanatory drawing for demonstrating latching of the stopper and slider shown in FIG. It is a disassembled perspective view of the housing main body, a cylindrical part, and a partition member which are shown in FIG.

  Hereinafter, headphones according to an embodiment of the present invention will be described. The headphones of the present embodiment include a headband and a sound emission part, and the sound emission part has a housing, and the frictional force on the outer surface of the cylindrical portion of the outer surface of the housing is affected by the housing. It is larger than the frictional force on the other outer surface. Of the outer surfaces of the housing, the frictional force on the outer surface formed in a cylindrical shape is relatively large. For example, when the user grasps the sound emitting unit, the sound emitting unit is less likely to slip with respect to the user's hand. Further, when the sound emitting unit is applied to the user's shoulder, the user's clothes and frictional force are positively generated, and the sound emitting unit is less likely to slip with respect to the user's shoulder. Therefore, it is possible to prevent the sound emitting unit from falling off between the user's one ear and the shoulder or from the user's hand.

  Moreover, this cylindrical part may have a some protrusion. By having a plurality of protrusions, it becomes more difficult to slip, and it is possible to prevent the sound emitting portion from falling between one ear and the shoulder or from the hand.

  The housing may include a cylindrical portion and a protruding portion surrounding the cylindrical portion, the protruding portion may be formed with a plurality of protrusions, and the protruding portion may be fitted to the cylindrical portion. Moreover, the fitting part may be provided in these protrusion parts and the cylindrical part. Since the protruding portion surrounds the cylindrical portion, a cylindrical portion of the outer surface of the housing is formed. Furthermore, since the protrusion and the cylindrical part are fitted to each other, it is possible to prevent the protrusion from rotating with respect to the cylindrical part when the user grips the protrusion. It is possible to prevent the sound emitting part from falling between the head and the shoulder or from the user's hand.

  The sound emitting part may include a speaker unit, the housing may include a lid part disposed on the opposite side of the sound emission direction of the speaker unit, and the outer surface of the lid part may be formed as a flat surface.

  As a result, when the user puts the sound emission part between one ear and the shoulder, the flat surface of the lid comes into contact with the shoulder, so that the contact surface with the shoulder can be enlarged, and between the one ear and the ear is easy. The sound emission part can be supported.

  The sound emitting unit may be freely displaceable with respect to the headband. Thereby, the protrusion part of a sound emission part is grasped with a hand and can be displaced easily.

  The headband includes a headband main body and a slider that connects the headband main body and the sound emitting unit, and the slider can rotate about the end of the headband main body as a rotation axis. It may be possible to displace relative to the main body. As a result, the sound emitting part can be easily rotated with respect to the headband body and the sound emitting part can be slid by grasping the protruding part of the sound emitting part by hand.

  Next, the headphones described above will be described with reference to FIGS. FIG. 1 is an exploded perspective view showing an embodiment of the headphones of the present invention. FIG. 2 is a cross-sectional view of the headphone shown in FIG. 1 with a slider inserted into the sound emission part. Note that the speaker unit is not shown in FIG. FIG. 3 is an exploded perspective view of the headband shown in FIG. FIG. 4 is an enlarged perspective view of the slider shown in FIG. FIG. 5 is a perspective view of the housing main body shown in FIG. FIG. 6 is a perspective view of the cylindrical portion and the partition member shown in FIG. FIG. 7 is an exploded perspective view of the slider locking portion shown in FIG. FIG. 8 is an explanatory diagram for explaining locking between the piece and the slider shown in FIG. FIG. 9 is an exploded perspective view of the housing body, the cylindrical portion, and the partition member shown in FIG.

  As shown in FIGS. 1 and 2, the headphone 1 includes a headband 2 and two sound emitting units 3 connected by the headband 2.

  As shown in FIGS. 3 and 4, the headband 2 includes a headband body 4 that is worn on the user's head, and a strip 5 or an elongated slider 5 that is held at both ends of the headband body 4. The headband body 4 includes a fastener 6 for connecting or holding the slider 5, a cover 7, a screw 8, and a pin 9. The sound emitting unit 3 is attached to the slider 5 so as to be movable along the longitudinal direction of the slider 5. The slider 5 is formed in a cross-sectional rhombus whose thickness increases as it approaches the center in the width direction. A plurality of grooves 51 along the width direction are formed in the slider 5 side by side in the longitudinal direction. In addition, a substantially circular hole 52 (holding hole 52 into which the fastener 6 is inserted) and a hole 53 (pin insertion hole 53) for inserting a pin 9 described later are provided at one end of the slider 5. It has been.

  The headband body 4 is formed with two sandwiching portions 41 for sandwiching or holding the slider 5 at both ends thereof. Each of the two pinching portions 41 includes a hole 41a (holding hole 41a) communicating with the holding hole 52 in a state where one end portion of the slider 5 is sandwiched, and a hole 41b (pin inserting hole 41b) communicating with the pin insertion hole 53. , Is formed. The fastener 6 has a main body 61 and a boss 62 that protrudes from the main body 61 and is inserted into two holding portions 41 and holding holes 41 a and 52 provided in the slider 5. The boss 62 is provided with a screw hole (a hole whose inner surface is threaded). The cover 7 is provided with a hole 71 (through hole 71) for passing a screw.

  Next, a procedure for attaching the slider 5 to the headband body 4 having the above-described configuration will be described. First, in a state where one end portion of the slider 5 is sandwiched between the two sandwiching portions 41, the boss 62 of the fastener 6 is passed through the two sandwiching portions 41 and the holding holes 41 a and 52 of the slider 5. At this time, the main body 61 of the fastener 6 is overlaid on one of the two clip portions 41. Thereafter, the cover 7 is overlapped with the other of the two sandwiching portions 41 and screwed into the through hole 71 of the cover 7 through the screw 8 and screwed into the screw hole provided in the boss 62. Thus, the slider 5 is held or connected between the sandwiching portions 41.

  In addition, when the slider 5 is attached to the headband body 4 as described above in a state where the pin 9 is not passed through the pair of sandwiching portions 41 and the pin insertion holes 41 b and 53 provided in the slider 5, the slider 5 is attached to the headband body 4. On the other hand, it is rotatable around the holding hole 52. That is, the slider 5 can rotate with the axis along the thickness direction of the headband body 4 as a rotation axis, and the sound emitting unit 3 held by the slider 5 can be displaced with respect to the headband body 4.

  On the other hand, when the slider 5 is attached to the headband body 4 with the pin 9 passing through the pin insertion holes 41 b and 53 provided in the pair of sandwiching portions 41 and the slider 5, the slider 5 cannot rotate with respect to the headband body 4. . That is, the slider 5 is held or coupled to the headband body 4 without rotating.

  Next, the configuration of the sound emitting unit 3 will be described. As shown in FIGS. 1 and 2, each of the pair of sound emitting units 3 includes a speaker unit (not shown) that emits sound, a housing 10 that houses the speaker unit, and an internal space of the sound emitting unit 3 in two or more spaces. A partition member 11 for partitioning, a slider locking portion 12 for locking the slider 5 movably, and a cushion 13.

  The speaker unit is a known speaker unit having a magnetic circuit, a voice coil, a diaphragm, and the like.

  The housing 10 includes a housing main body 14 that is open on the sound emission direction Y1 side of the speaker unit, a lid portion 15 that covers an upper portion 141 of the housing main body 14 (a part of the housing main body 14 opposite to the sound emission side), A cylindrical portion 16, an annular protrusion 17, and a fixing portion 18 to which the speaker unit is fixed are provided.

  As shown in FIGS. 2 and 5 and the like, the housing body 14 includes a substantially circular upper portion 141, and a cylindrical peripheral wall portion 142 standing from the periphery of the upper portion 141 toward the sound radiation direction Y1, It is formed in a saucer shape or a cup shape in which the sound radiation direction Y1 is opened.

  The upper part 141 is disposed on the side opposite to the sound emission direction Y1 of the speaker unit. On the outer surface of the upper portion 141, a concave portion 141a for fitting a lid portion 15 to be described later is formed. On the inner surface of the upper portion 141, a concave portion 141b in which an upper portion 111a of the partition member 11 described later is disposed is formed. Further, from the upper portion 141, four bosses 141c for fixing a fixing portion 18 to be described later and two bosses 141d for fixing a base portion 19 of a slider locking portion 12 to be described later are emitted. It protrudes in the direction Y1. The bosses 141c and 141d are provided with screw holes (holes whose inner surfaces are threaded) for screwing screws (not shown).

  The peripheral wall 142 includes a first peripheral wall 142a having a diameter that increases in the sound radiation direction Y1, and a second peripheral wall 142b having a constant diameter. The diameter of the outer surface of the second peripheral wall 142b is slightly smaller than the maximum diameter of the outer surface of the first peripheral wall 142a. Thereby, the edge part by the side of the sound radiation direction Y1 of the 1st surrounding wall part 142a is protruded and provided outside the 2nd surrounding wall part 142b.

  The peripheral wall 142 is provided with two openings 142c facing each other. The two openings 142c are provided across the first peripheral wall 142a and the second peripheral wall 142b, respectively. A hood portion 142d that protrudes along the periphery of the opening 142c is formed on the outer surface of the second peripheral wall portion 142b.

  As shown in FIGS. 1 and 2, the lid portion 15 is provided in a substantially disc shape and has a flat outer surface. The lid portion 15 is fitted into a concave portion 141 a provided in the upper portion 141 of the housing body 14.

  In this embodiment, the cylindrical portion 16 is formed integrally with a partition member 11 to be described later. As shown in FIG. 2, the cylindrical portion 16 is provided on the outer peripheral surface of the second peripheral wall portion 142 b of the housing body 14 (the portion formed in the cylindrical shape of the outer surface) and is fitted to the second peripheral wall portion 142 b. To do. Further, as shown in FIGS. 2 and 6, the cylindrical portion 16 includes a notch 16a for passing a slider 5 described later, a notch 16b for passing an electric wire, a connector, and the like, and edges of the notches 16a and 16b. And hood portions 16c and 16d that are erected.

  The tubular portion 16 and the second peripheral wall portion 142b are fitted so that the hood portion 142d of the housing body 14 is fitted to the hood portion 16c of the tubular portion 16. The fitting of the hood portion 16c and the hood portion 142d can prevent the cylindrical portion 16 from rotating around the second peripheral wall portion 142b.

  The protrusion 17 is made of ABS, rubber, or the like, and a plurality of protrusions 17c are provided on the outer peripheral surface (portion formed in a cylindrical shape) of the outer surface of the protrusion 17 and the sound emission part 3 is held by hand. It is hard to slip. In the example shown in the drawing, a blank portion partitioned by a plurality of lines becomes the protrusion 17c. The protrusion 17c has a shape protruding outward from the outer surface of the protrusion 17 as shown in FIG. A groove 17d is formed between the plurality of protrusions 17c, and a plurality of lines in FIG. 2 indicate the positions of the grooves. The plurality of protrusions 17 c are formed over the entire outer periphery of the protrusion 17. As shown in FIG. 2, the protrusion 17 is fitted into the cylindrical portion 16 and forms a cylindrical portion (hereinafter referred to as an outer peripheral surface) of the outer surface of the housing 10. By this projection 17c, the frictional force on the outer peripheral surface of the projection 17 can be made larger than the frictional force on the outer surface of the other part of the housing 10 (for example, the outer surface of the housing body 14). Here, the outer surface of the other part is a part of the outer surface of the housing 10 excluding the outer peripheral surface of the protrusion 17. For this reason, when the user grasps the sound emitting unit 3, the sound emitting unit 3 is less likely to slip with respect to the user's hand. Further, when the sound emitting unit 3 is applied to the user's shoulder, the user's clothes and frictional force are positively generated, so that the sound emitting unit 3 is less likely to slip with respect to the user's shoulder. Therefore, it is possible to prevent the sound emitting unit 3 from falling off between the user's one ear and the shoulder or from the user's hand.

  Moreover, the protrusion part 17 has the notch 17a (= fitting part), as shown in FIG. The protrusion 17 and the tubular part 16 are fitted so that the hood parts 16c and 16d (= fitting part) of the tubular part 16 are fitted in the notches 17a of the protruding part 17. By fitting the notches 16a with the hood portions 16c and 16d, the protrusion 17 can be prevented from rotating around the cylindrical portion 16.

  The fixing portion 18 is provided in a substantially disc shape with an opening to which the speaker unit is attached at the center, and is attached so as to cover the opening on the sound emission direction Y1 side of the cylindrical portion 16. The fixing portion 18 is provided with a communication hole (not shown) that communicates with the screw hole of the boss 141c erected from the upper portion 141 of the housing body 14 described above. The cylindrical portion 16 and the protruding portion 17 are sandwiched between the housing body 14 and the fixing portion 18 by passing a screw through the communication hole (not shown) and screwing a screw (not shown) into the screw hole of the boss 141c. In this state, the fixing portion 18 can be fixed to the housing body 14.

  In the partition member 11, a passage forming portion 111 that forms a passage through which the slider 5 of the headband 2 to be described later is passed, and a wall portion 112 (partition plate 112) are integrally formed. The passage forming portion is formed in a cylindrical shape, and is formed in a rectangular shape (for example, a square shape) as viewed from the lid portion 15 and in a rectangular shape (for example, a rectangular shape) as viewed from the opening side. The wall portion 112 has a shape protruding from the upper portion 111 a of the passage forming portion 111 toward the upper portion 141 of the housing main body 14. The partition member 11 and the tubular portion 16 are integrally formed so that both end portions of the passage forming portion 111 are connected to the periphery of the notch 16 a provided in the tubular portion 16. Therefore, when the cylindrical portion 16 is fitted to the second peripheral wall portion 142b of the housing body 14, both end portions of the passage forming portion 111 are respectively communicated with the pair of openings 142c provided in the housing body 14. By communicating with the opening 142c, the inside of the passage forming part 111 becomes an external communication space Co.

  The passage forming portion 111 includes an upper portion 111a on the side away from the speaker unit (headband 2 side with respect to the speaker unit), a bottom portion 111b on the speaker unit side, and a pair of side portions provided between the upper portion 111a and the bottom portion 111b. 111c. As shown in FIG. 9, the upper portion 111a is erected so as to surround the insertion hole 111d and an insertion hole 111d for inserting a stopper 20 of the slider locking portion 12 to be described later into the passage forming portion 111. And a cylindrical portion 111e on which the base portion 19 of the locking portion 12 is mounted. 111 d of insertion holes are provided so that the stopper 20 may be inserted in the center of a channel | path.

  Further, the outer surface and the inner surface of the upper portion 111a are inclined surfaces that approach the speaker unit toward the central portion of the passage, and the inner surface of the upper portion 111a is a concave surface with respect to the lid portion 15 (housing 10). It has become. The outer surface and the inner surface of the bottom portion 111b are provided with inclined surfaces that move away from the speaker unit toward the central portion of the passage, and the inner surface of the bottom portion 111b is a concave surface with respect to the speaker unit. The upper portion 111a is shorter than the bottom portion 111b in the direction from one end of the passage toward the other end (hereinafter referred to as the passage direction), and is provided at the center of the upper portion 141 of the housing body 14. It is disposed on the recessed portion 141b.

  Thus, by providing an inclined surface on the outer surface of the upper portion 111a of the passage forming portion 111, both ends of the upper portion 111a in the passage direction are in contact with the upper portion 141 of the housing body 14, and the central portion is the housing. A space is formed apart from the upper portion 111a of the main body 14 and between the upper portion 111a of the passage forming portion 111 and the upper portion 141 of the housing main body 14 (= a portion facing the inclined surface of the upper portion 111a of the housing 10). Further, by providing the inclined surfaces as described above on the inner surfaces of the upper portion 111a and the bottom portion 111b of the passage forming portion 111, the center portion of the passage is narrowest in the passage forming portion 111 as shown in FIG. The slider 5 is sandwiched between the upper portion 111a and the bottom portion 111b of the narrow portion. Further, by providing the inclined surfaces as described above on the inner surfaces of the upper portion 111a and the bottom portion 111b of the passage forming portion 111, both ends of the passage are widely provided. Thereby, the slider 5 can be easily passed through the passage forming portion 111. Further, the slider 5 can be displaced such that the slider 5 approaches the upper part 111a or approaches the bottom part 111b with the slider engaging part 12 as a fulcrum in the passage forming part 111.

  The two side portions 111c are provided in parallel with each other, and bosses 111f for fixing a base portion 19 of a slider locking portion 12 described later are provided.

  The partition plate 112 is formed in a cylindrical shape having a square cross section, and an end surface opposite to the sound radiation direction Y1 is in contact with the upper portion 141 of the housing main body 14. As a result, a space surrounded by the upper portion 141 of the housing body 14, the upper portion 111a of the partition member 11, and the partition plate 112 is formed. The upper portion 111a of the passage forming portion 111 and the partition plate 112 are provided with a first hole portion 111g and a second hole portion 112a, respectively.

  That is, the partition member 11 partitions the internal space of the sound emitting unit 3 (that is, the space in the housing 10) into three spaces. These three spaces are surrounded by the external communication space Co in the passage forming part 111 communicating with the opening 142c of the housing body 14, the upper part 141 of the housing body 14, the upper part 111a of the partition member 11, and the partition plate 112, A first space C1 that communicates with the external communication space Co through the first hole 111g, and a space that excludes the external communication space Co and the first space C1 in the housing 10 and has a speaker unit. 2 space C2. The first space C1 and the second space C2 communicate with each other through a second hole 112a provided in the partition plate 112. Further, due to the partition member 11, the first space C1 is located on the headband 2 side, and the second space C2 is located on the speaker unit side.

  As shown in FIG. 7, the slider locking portion 12 enters the passage 19 from the base portion 19 fixed to the passage formation portion 111 and the insertion hole 111 d of the passage formation portion 111 and fits into the groove 51 of the slider 5. And a biasing portion 21 provided between the base portion 19 and the stopper 20 and configured by a coil spring or the like that biases the stopper 20 toward the slider 5.

  The base portion 19 is mounted on the cylindrical portion 111e of the passage forming portion 111, and is fixed to the boss 111f with screws. The stopper 20 is provided with a flat surface 20 a that contacts the flat surface at the end of the slider 5, and a piece 20 b that protrudes closer to the slider 5 than the flat surface 20 a that fits into the groove 51 of the slider 5. The flat surface 20 a and the piece 20 b are formed side by side in the longitudinal direction of the slider 5. The flat surface 20a is provided on the side farther from the headband body 4 than the piece 20b.

  The side farther from the headband body 4 than the top of the piece 20b is provided on a curved surface 20c that has a larger angle of inclination (inclination becomes stiffer) with respect to the plane 20a as it is farther from the top. Similarly, a curved surface 20d that is inclined more gradually from the top portion than the top portion of the piece 20b is provided, but the curved surface 20d is provided only at a part of the top portion side. On the side away from the top, a flat inclined surface 20e is provided which is gentler than the inclination angle of the curved surface 20d with respect to the flat surface 20a at the position where the flat surface 20a and the curved surface 20d intersect.

  With the above configuration, since the piece 20 b is inserted into the groove 51 of the slider 5, the piece 20 b can be held while being inserted into the passage forming portion 111 of the sound emitting unit 3. In addition, the stopper 20 is supported by the urging portion 21 so as to be movable in a direction in which the stopper 20 contacts and separates from the slider 5. Accordingly, when the position of the sound emitting unit 3 is desired to be adjusted, if the slider 5 is pulled, the piece 20b moves in a direction away from the slider 5, and when the mountain between the groove 51 and the groove 51 is climbed, the slider 5 is returned to the slider 5 again. It moves in the approaching direction and is inserted into the adjacent groove 51. By repeating this, the slider 5 can be moved along the longitudinal direction.

  Further, as described above, the slider 5 is provided in a cross-sectional rhombus having the largest thickness in the width direction, and the piece 20 b is in contact with the central portion in the width direction of the groove 51. For this reason, the slider 5 can be rotated by a predetermined angle with an axis passing through the center in the width direction and extending along the longitudinal direction as a rotation axis.

  As shown in FIG. 2 and the like, the groove 51 provided in the slider 5 is deepest on the side farthest from the headband body 4. Thus, as shown in FIG. 8, when the piece 20b of the stopper 20 is inserted into the groove 51 which is not deep, the piece 20b is easily inserted into the groove 51 only near the top portion having a gentle slope, so that the slider 5 can be easily moved. On the other hand, when the piece 20b of the stopper 20 is inserted into the deep groove 51, the contact area between the groove 51 and the piece 20b can be increased. Moreover, since the groove 51 abuts on the curved surface 20c on the side away from the inclined top, even if the slider 5 is pulled slightly in the direction in which the slider 5 is pulled out of the passage forming portion 111, the slider 5 is difficult to be removed from the passage forming portion 111. ing. However, when the slider 5 is pulled with a large external force in the direction in which the slider 5 is pulled out from the passage forming portion 111, the piece 20 b moves to the side away from the slider 5, and the slider 5 can be pulled out.

  According to the above-described embodiment, the partition member 11 can partition the internal space of the sound emitting unit 3 into two or more spaces, and can use the vacant space on the headband 2 side as the first space C1. The sound insulation can be improved and the bass can be expanded without increasing the size of the sound emitting unit 3.

  Further, according to the above-described embodiment, the partition member 11 is integrally formed with the passage forming portion 111 that forms a passage through which the headband 2 passes. This reduces the number of parts and facilitates assembly.

  Further, according to the above-described embodiment, the outer surface of the passage forming portion 111 on the side away from the speaker unit (housing 10 side) is provided with the inclined surface that approaches the speaker unit toward the center of the passage. A first space C1 is formed between the portion facing the inclined surface and the inclined surface. Further, the outer surface of the passage forming portion 111 facing the part of the housing 10 to which the passage forming portion 111 is attached is a concave surface with respect to the housing 10, and the outer surface and the housing 10 facing the outer surface are arranged. A first space C1 is formed between a part thereof. Thereby, the first space C <b> 1 can be formed using a space formed between the concave surface or the inclined surface and the housing 10.

  Further, the passage forming portion 111 has a first hole portion 111g that allows the first space C1 to communicate with the outside. Thereby, the 1st space C1 and the exterior can be connected by the 1st hole 111g provided in passage way part 111.

  Further, according to the above-described embodiment, the partition member 11 has the wall portion 112 (for example, the partition plate 112) that protrudes from the concave surface (inclined surface) of the passage forming portion 111 toward the housing 10. The second space C2 is formed between the surface (inclined surface), the wall portion 112, and the housing 10, and the wall portion 112 has a first hole that communicates the second space C2 with the first space C1. There is a part 111g. Thereby, the first space C1 and the second space C2 can be communicated with each other by the first hole portion 111g provided in the wall portion 112. Hereinafter, the wall portion 112 is referred to as a partition plate 112.

  Further, according to the above-described embodiment, the annular protrusion 17 having a plurality of protrusions is provided on the outer peripheral surface of the cylindrical portion 16 of the housing 10. With the annular protrusion 17, the frictional force on the outer peripheral surface of the tubular portion 16 can be made larger than the frictional force on the other outer surface of the housing 10. Thereby, when the user grasps the sound emitting unit 3, the sound emitting unit 3 is less likely to slip with respect to the user's hand. Further, when the sound emitting unit 3 is applied to the user's shoulder, the user's clothes and frictional force are positively generated, so that the sound emitting unit 3 is less likely to slip with respect to the user's shoulder. Therefore, it is possible to prevent the sound emitting unit from falling off between the user's one ear and the shoulder or from the user's hand.

  Further, according to the above-described embodiment, the protrusion 17 is provided to be fitted to the cylindrical portion 16 of the housing 10, and the protrusion 17 and the cylindrical portion 16 are provided with a hood portion 16 c that is fitted to each other. 16d and a notch 17a are provided. Thereby, the protrusion part 17 does not rotate with respect to the cylindrical part 16, and it can aim at the fall prevention of the sound emission part 3 between one ear | edge and a shoulder, and a hand much more reliably. Moreover, since the hood portions 16c and 16d provided in the cylindrical portion 16 are fitted into the notches 17a provided in the projection portion 17 in order to pass the electric wire and the slider 5, it is necessary to provide a fitting portion separately from these. The configuration is simple.

  Further, according to the above-described embodiment, the housing 10 includes the lid portion 15 disposed on the side opposite to the sound emission direction Y1 of the speaker unit, and the outer surface of the lid portion 15 may be formed as a flat surface. Good. Thereby, when the sound emission part 3 is sandwiched between one ear and the shoulder, the flat surface of the lid portion 15 comes into contact with the shoulder, so that the contact surface with the shoulder can be enlarged, and it is easy between one ear and the ear. The sound emission part 3 can be supported.

  Further, according to the above-described embodiment, the sound emitting unit 3 may be displaceable with respect to the headband 2. Thereby, the protrusion 17 of the sound emitting part 3 can be easily displaced by grasping it by hand.

  Further, according to the above-described embodiment, the headband 2 includes the headband main body 4 and the slider 5 that connects the headband main body 4 and the sound emitting unit 3. The end portion may be rotated about the rotation axis, and the sound emitting unit 3 may be displaced with respect to the headband body 4. As a result, the projecting portion 17 of the sound emitting portion 3 can be grasped by hand and the sound emitting portion 3 can be easily rotated with respect to the headband body 4 and the sound emitting portion 3 can be slid.

  In addition, according to the Example mentioned above, although several protrusion was provided in the perimeter of the projection part 17, it is not restricted to this. The plurality of protrusions may be formed only on a part of the outer periphery of the protrusion portion 17 or a plurality of protrusions may be formed at a predetermined interval.

  Further, according to the above-described embodiment, the slider 5 is provided at both ends of the headband 2, and the slider 5 is inserted into the passage forming portion 111 and slid with respect to the passage forming portion 111. Not a thing. Some headbands 2 slide the slider 5 with respect to the headband body 4. In this case, the slider 5 is not inserted into the passage forming portion 111, and both ends of the headband 2 form a passage. It is inserted into the part 111 and held.

  Further, according to the above-described embodiment, the passage forming portion 111 is formed integrally with the partition member 11 and the partition plate 112 is projected from the upper portion 111a of the passage forming portion 111. However, the present invention is not limited to this. . A partition plate 112 may protrude from the upper portion 141 of the housing body 14 and abut on the upper portion 111 a of the passage forming portion 111.

  Further, according to the above-described embodiment, the wall portion 112 may be formed in a closed shape such as a rectangular shape or an annular shape when viewed from the upper portion 141 side of the housing main body 14. Further, according to the above-described embodiment, the surface of the wall portion 112 facing the first space C1 is a continuous surface, but if necessary, a hole different from the second hole portion 112a is formed. It doesn't matter.

  Moreover, according to the Example mentioned above, although the inclined surface was provided in the upper part 111a and the bottom part 111b of the channel | path formation part 111, it is not restricted to this. You may provide in parallel mutually, without providing an inclined surface in the upper part 111a and the bottom part 111b.

  Further, according to the above-described embodiment, the cylindrical portion 16 and the protrusion portion 17 of the housing 10 are provided separately, but the present invention is not limited to this. A plurality of protrusions may be formed on the outer peripheral surface of the cylindrical portion 16 of the housing 10 so that the protrusions 17 are integrally formed.

  Further, according to the above-described embodiment, the slider 5 is held rotatably with respect to the headband body 4 about the axis along the thickness direction of the headband body 4 as a rotation axis. It is not a thing. The slider 5 may be held by the headband body 4 so as to be able to rotate. For example, the slider 5 may be held rotatably about an axis along the longitudinal direction of the headband body 4 as a rotation axis. The main body 4 may be held rotatably about an axis along the width direction of the main body 4 as a rotation axis.

  Moreover, according to the Example mentioned above, although the partition member 11 and the cylindrical part 16 were provided integrally, it is not restricted to this. The partition member 11 and the cylindrical portion 16 may be provided separately.

  Further, according to the above-described embodiment, the groove 51 on the side farthest from the headband body 4 (hereinafter referred to as the endmost groove 51) is deepened so that the slider 5 does not come out of the passage forming portion 111. However, it is not limited to this. All the grooves 51 may be formed to the same depth. In this case, the side farther from the headband body 4 than the endmost groove 51 is formed between the grooves 51 other than the endmost groove 51 and the groove 51. It may be made to protrude from the formed peak portion to increase the contact area with the curved surface 20c of the piece 20b so that it is difficult to come off.

  Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Headphone 2 Headband 3 Sound emission part 4 Headband main body 5 Slider 10 Housing 15 Cover part 16 Cylindrical part 17 Projection part 16c, 16d Hood part (fitting part)
17a Notch (fitting part)

Claims (6)

A headband and a sound emission part,
The sound emitting unit has a housing,
A headphone characterized in that a frictional force in a cylindrically formed portion of the outer surface of the housing is larger than a frictional force in other portions. The headphone according to claim 1, wherein a plurality of protrusions are formed in the cylindrical portion. The housing includes a tubular portion and a protruding portion surrounding the tubular portion,
The protrusion includes the plurality of protrusions,
The headphone according to claim 2, wherein the protruding portion is fitted to the cylindrical portion. The sound emitting unit includes a speaker unit,
The housing includes a lid portion disposed on the opposite side to the sound emission direction of the speaker unit,
The headphone according to claim 1, wherein an outer surface of the lid portion is formed as a flat surface.   The headphone according to claim 1, wherein the sound emitting unit is freely displaceable with respect to the headband. The headband includes a headband main body and a slider that connects the headband main body and the sound emitting unit,
The headphone according to any one of claims 1 to 5, wherein the slider can rotate with an end portion of the headband body as a rotation axis, and the sound emitting portion can be displaced with respect to the headband body.

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