JP6515909B2 - headphone - Google Patents

Description

  The present invention relates to headphones worn on a user's ear for sound reproduction, and more particularly to a headphone provided with a slider slidably held relative to either a housing or a headband.

  An overhead type headphone mounted on the head of a user having a headband comprises a headband, a speaker unit, a housing surrounding the back side of the speaker unit, and an ear contact portion provided on the front side of the speaker unit There is. The headphones referred to here are not only stereo-type headphones in which a pair of left and right housings are connected by a headband, but also monaural-type headphones in which the housing is attached only to one ear of the user Contains a set.

  The headphone having such a headband may be provided with an adjustment mechanism so that the relative positional relationship between the housing and the headband can be adjusted to the head and ear of the user wearing the headband. is there. Typically, the user stably wears headphones by adopting a slider structure capable of sliding movement toward the headband or the housing side, or a pole joint structure capable of pivoting movement, or the like. There are things that are made available.

  In the slider structure of the headphone, for example, the concave and convex parts fitted to each other are provided so that the relative positional relationship between the housing and the headband can be stepwise selected from a plurality of predetermined positions, and the click operation is performed. There are some which adopt a slider structure which can be moved and fixed according to (Japanese Patent Application Laid-Open No. 2001-147, FIGS. 3 to 5). On the other hand, there are some which adopt a slider structure in which a position is determined steplessly in a predetermined range (Patent Document 1, FIG. 1).

  In the slider structure, there is a problem that it may not be possible to finally adjust the position according to the user's preference, as compared with the method of selecting in steps from a plurality of positions in a stepless manner. . On the other hand, in the method of determining the position in a stepless manner, there is a problem that the relative positional relationship is likely to change and to shift easily, since there is no unevenness fitted to each other.

  In the headphone slider structure as described above, there is one in which an elastic material such as a leaf spring is disposed so that an appropriate fitting force or frictional force is generated in the fitting portion so that the relative positional relationship does not change. In particular, in the case of a method in which the position is determined steplessly without providing the concavities and convexities that are fitted to each other, it is necessary to strongly press the members to be in contact to give a strong frictional force. Therefore, while a headphone adopting such a slider structure can be stably worn by the user, there is a problem that the slider structure tends to be complicated.

  In addition, overhead type headphones have a problem that when the speaker unit housed in the housing vibrates, this vibration is transmitted to the headband to generate unnecessary vibration, which adversely affects the reproduction sound quality of the headphones. In particular, when the slider structure includes a member such as a leaf spring formed of a metal material, mechanical system resonance with high sharpness Q of resonance may occur due to the vibration from the speaker unit. . There is a problem that such resonance may generate unnecessary radiated sound and deteriorate the reproduction sound quality of the headphone.

Japanese Utility Model Publication No. 57-1515

  The present invention was made to solve the above-mentioned problems of the prior art, and its object relates to a headphone comprising a slider held slidably relative to either a housing or a headband It is an object of the present invention to provide a headphone which is excellent in reproduction sound quality by adjusting the relative position and being able to be stably attached while suppressing unnecessary vibration in the slider.

The headphone according to the present invention has a housing for accommodating a speaker unit, a headband, and one end connected to either the housing or the headband, and the other end slidable relative to either the housing or the headband. And a slider to be held, at least one of the headband and the housing has a slider holding portion for slidably holding the held portion of the slider, the slider holding portion having a through hole, and the slider A first elastic member that contacts the first contact portion of the held portion to apply a first biasing force, and has a through hole and contacts the second contact portion so that the direction is substantially orthogonal to the first biasing force And a fixing member for fixing the first elastic member and the second elastic member, having a convex portion passing through the through hole .

  Preferably, in the headphone according to the present invention, the slider has a held portion in which a slot-like slit is formed in a strip-like base and held by the slider holding portion, and the second elastic member passes through the slit At the same time, it is a substantially columnar member that is in contact with the second contact portion to apply a second biasing force.

  In addition, preferably, in the headphone according to the present invention, the first contact portion of the held portion of the slider is a flat portion having no unevenness of the base, and the second contact portion has unevenness defining the slit. It is an end face part which is not.

  Preferably, in the headphone according to the present invention, the first elastic member of the slider holding portion is a flat spring-like member formed of a metal material or a resin material, and the second elastic member is a silicon resin material or a rubber material Is a member formed by

  Hereinafter, the operation of the present invention will be described.

  The headphone according to the present invention has a housing for accommodating a speaker unit, a headband, and one end connected to either the housing or the headband, and the other end slidable relative to either the housing or the headband. And a slider to be held. Here, either the headband or the housing has a slider holding portion that slidably holds the slider. That is, the slider needs to be slidably held relative to either the housing or the headband, and has the held portion held by the slider holding portion. Therefore, this headphone can adjust the relative positional relationship between the housing and the headband to the head and ear of the user who wears it.

  Here, the slider holding portion is in contact with the first contact portion of the held portion of the slider to apply a first biasing force, and is in contact with the second contact portion and is the first biasing force. It has the 2nd elastic member which gives the 2nd energizing force in the direction substantially orthogonal, and the fixed member which fixes the 1st elastic member and the 2nd elastic member. Therefore, the first elastic member in contact with the first contact portion and the second elastic member in contact with the second contact portion are appropriately designed to apply an urging force to the held portion of the slider from the substantially orthogonal direction. To enable stable mounting so that relative positions do not shift easily, and in the case where resonance occurs in a mechanical resonance system including one elastic member, the other elastic member suppresses resonance You can do so. Therefore, unnecessary vibration in the slider can be suppressed to configure a headphone that is less likely to adversely affect the reproduction sound quality.

  The slider has an elongated hole formed in a strip-like base, and has a held portion held by the slider holding portion. Accordingly, the second elastic member can be a substantially columnar member which passes through the slit and abuts on the second contact portion to apply a second biasing force. Preferably, the first contact portion of the held portion of the slider is a flat surface portion having no unevenness of the base, and the second contact portion is an end surface portion not having unevenness which defines a slit. Therefore, the held portion of the slider and the corresponding slider holding portion can be made relatively small, and the position can be determined steplessly. In addition, since the first elastic member and the second elastic member passing through the slit hold the base of the held portion of the slider in the direction orthogonal to each other, unnecessary vibration in the slider is suppressed, and the reproduction sound quality is improved. Excellent headphones can be configured.

  When the first elastic member of the slider holding portion is a leaf spring-like member formed of a metal material or a resin material, the second elastic member is a substantially columnar member formed of a silicon resin material or a rubber material It is preferable to be composed of By using different elastic materials having different shapes, each functions as a dump material that gives a loss that suppresses the resonance of a mechanical system having high sharpness of resonance Q. The first elastic member has a through hole through which the convex portion of the fixing member passes, so that the first elastic member can be easily fixed by the fixing member. Furthermore, the second elastic member can be formed into a substantially columnar member so as to have a shape suitable for passing through the slit of the held portion, and has a through hole through which the convex portion of the fixing member passes. It can be easily fixed by the fixing member.

  The headphone according to the present invention can be mounted stably by the user adjusting the relative position between the housing and the headband, and can suppress unnecessary vibration in the slider to provide headphones excellent in reproduction sound quality. .

It is an outline view of headphones concerning one embodiment of the present invention. It is an explanatory view showing the concrete structure of the slider structure of the headphones concerning one embodiment of the present invention. It is an explanatory view showing the concrete structure of the slider structure of the headphones concerning one embodiment of the present invention. It is an explanatory view showing the concrete structure of the slider structure of the headphones concerning one embodiment of the present invention. It is an explanatory view showing the concrete structure of the slider structure of the headphones concerning one embodiment of the present invention.

  Hereinafter, although headphones according to preferred embodiments of the present invention will be described, the present invention is not limited to these embodiments.

  FIG. 1 is a view for explaining a headphone 1 according to a preferred embodiment of the present invention. Specifically, FIG. 1 is a perspective view showing the appearance of the headphone 1. The headphone 1 according to the present embodiment includes left and right headphone units 1A and 1B, and a headband 1C connecting the headphone units 1A and 1B. The headphone units 1A and 1B each include a housing 2 for housing a speaker unit and an ear contact portion 3.

  The housing 2 surrounds at least the back side of the speaker unit, and defines an acoustic capacity such as an air chamber on the back of the diaphragm of the speaker unit. The side of the housing 2 may be provided with a hole communicating with the air chamber. The compliance with the internal space of the housing 2 can be adjusted by the holes to adjust the frequency characteristics, particularly the frequency characteristics of the bass range.

  The headphone 1 is provided with a slider holding portion 20 that holds the slider 1E at both ends of the headband 1C. The head band 1C is provided with a groove portion for housing the slider 1E in the inside not seen in appearance and a slider holding portion 20 for holding the slider 1E, and the slider 1E is attached to the head band 1C by the groove portion and the slider holding portion 20. It is held slidably with respect to it. The other end side of each slider 1E is connected to the hanger 1D, and the hangers 1D, 1D are connected to the respective housings 2, 2. Therefore, the headphone 1 can adjust the relative positional relationship between the housing 2 and the headband 1C in accordance with the head and ear of the user who wears it.

  In FIG. 1, the cord and the plug portion of the headphone 1 corresponding to stereo reproduction are not shown. About the composition of other headphones 1 unnecessary to explanation of the present invention, illustration and explanation are omitted below. Further, the form of the headphone 1 is not limited to the case of the present embodiment. The headphone 1 may be a wireless headphone including a receiver that receives a wireless signal that does not include a cord that supplies an audio signal and a plug unit.

  2 to 5 are explanatory views showing a specific structure of the slider structure of the headphone 1 according to the embodiment of the present invention. Specifically, FIG. 2 is a perspective view for explaining the configuration of the slider 1E accommodated in the groove portion inside the headband 1C, with the illustration of parts of the headband 1C and the slider holding portion 20 omitted. is there. FIG. 3 is an exploded perspective view for explaining components of one slider holding portion 20. As shown in FIG. 4 and 5 are enlarged views for explaining one slider structure. In FIG. 4, illustration of parts of the slider holding unit 20 is omitted. 5 is a cross-sectional view taken along the line A-A 'in FIG. 4 and illustrates the structure of the slider holding portion 20 from the lateral direction orthogonal to the direction of the viewpoint in FIG.

  In the headphone 1 of the present embodiment, the slider 1E is accommodated in the groove inside the headband 1C, or appears from the end of the headband 1C to move the housing 2 closer to or away from the headband 1C. It enables sliding movement. The slider 1E has a held portion 10 held by a slider holding portion 20 provided at the end of the headband 1C. The held portion 10 is on the headband 1C side of the slider 1E and has a curved strip-like base made of an aluminum alloy. In the held portion 10, a slit 11 having a long hole shape is formed over the range in which the slider 1E can slide.

  The holding portion 10 of the slider 1E is not provided with asperities to be fitted when held by the slider holding portion 20. Moreover, in the strip-like base | substrate of the to-be-held part 10 of the slider 1E, when the slit 11 is formed, an unevenness | corrugation is not provided also in the end surface 12 which defines the slit 11. FIG. Therefore, in the headphone 1, the slider 1E and the slider holding portion 20 steplessly position the relative positional relationship between the housing 2 and the headband 1C within the predetermined range in which the slit 11 is formed. Works as defined.

  The slider holding portion 20 is configured of a plurality of components so as to hold the held portion 10 of the slider 1E. The slider holding portion 20 allows the held portion 10 of the slider 1E to pass through the inside of a housing formed by connecting the outer fixing member 21 and the inner fixing member 25 with a plurality of screws 28, and the slider holding portion 20 It has an elastic member which gives a biasing force. Between the outer fixing member 21 and the inner fixing member 25, the housing of the slider holding portion 20 passes a strip-like base of the held portion 10 that slides relatively and determines its position. It is fixed by pinching. The outer fixing member 21, the inner fixing member 25, and the positioning member 29 are formed of a resin material.

  The slider holding portion 20 is provided with leaf spring members 22 and 24 and a cylindrical elastic member 23 as elastic members for applying a biasing force to the held portion 10 of the slider 1E by friction. The plate spring members 22 and 24 and the cylindrical elastic member 23 are fixed to the outer fixing member 21 and the inner fixing member 25 through the projections respectively provided.

  The flat spring members 22 and 24 are formed of an elastically deformable resin material, and have flat surfaces at both ends fixed to form a curved surface portion between them, and a top portion thereof is displaced by elastic deformation. The flat portions to which the plate spring members 22 and 24 are fixed have through holes through which the projections 26 provided on the outer fixing member 21 or the inner fixing member 25 pass. Further, a U-shaped concave portion through which the cylindrical elastic member 23 passes is formed in the flat portion to which the plate spring member 24 is fixed. The flat portion to which the other plate spring member 22 is fixed is formed with a U-shaped concave portion through which the protrusion 30 for fixing the cylindrical elastic member 23 passes.

  The fixed portion side is fixed to the outer fixing member 21 so that the plate spring member 22 applies a biasing force to the strip-like base of the held portion 10 from the outside, and the top of the plate spring is the outer side of the held portion 10 Abuts on a flat surface. Further, the plate spring member 24 is a plate spring having substantially the same shape as the plate spring member 22. The fixing portion side is fixed to the inner fixing member 25 and the top of the plate spring abuts on the inner flat surface of the held portion 10. . Therefore, the plate spring members 22 and 24 apply a first biasing force so as to sandwich the strip-like base of the held portion 10. The plate spring members 22 and 24 may be formed of an elastically deformable metallic material.

  On the other hand, the cylindrical elastic member 23 is formed of an elastically deformable silicon resin material whose outer shape is substantially cylindrical, and has an outer curved surface portion, an inner curved surface portion defining a through hole at the central axis portion, and And a flat portion. The projections 30 of the outer fixing member 21 and the protrusions 27 of the inner fixing member 25 are respectively inserted into the through holes of the cylindrical elastic member 23, and the cylindrical elastic members 23 are inserted into the outer fixing member 21 and the inner fixing member 25. It is fixed. Therefore, the outer curved surface portion of the cylindrical elastic member 23 has a structure which is displaced by elastic deformation when a force is applied. The column elastic member 23 may be formed of a rubber material.

  In the slider holding portion 20, the cylindrical elastic member 23 is assembled so as to pass through the long hole-shaped slit 11 formed in the held portion 10 of the slider 1E. The diameter dimension of the cylindrical elastic member 23 is set to be substantially equal to or slightly larger than the width dimension of the slit 11, so the outer curved surface portion of the elastically deformable cylindrical elastic member 23 is an end face defining the slit 11. 12, and applies a second biasing force to the held portion 10 of the slider 1E. Since the slit 11 is provided over the range in which the slider 1E can slide, the cylindrical elastic member 23 passing through the slit 11 functions to restrict the sliding range of the slider 1E.

  In the slider holding portion 20, a first biasing force that causes the leaf spring members 22 and 24 to sandwich the strip-like base with respect to the held portion 10 of the slider 1E, and the cylindrical elastic member 23 passing through the slit 11 The second biasing force applied to the end surface 12 acts in a direction substantially orthogonal to each other. Since the first biasing force and the second biasing force are applied to the held portion 10 in the direction substantially orthogonal to each other, the held portion 10 of the slider 1E is strongly held by the slider holding portion 20. As compared with the case where only one or the other acts, the relative position can be easily prevented from shifting.

  Further, since the friction coefficients of the plate spring members 22 and 24 with respect to the held portion 10 of the slider 1E are different from the friction coefficient of the cylindrical elastic member 23, the first biasing force and the second biasing force to be applied are different from each other. It becomes a thing. The slider holding portion 20 appropriately selects the material, surface treatment, and dimensional structure of the held portion 10 of the slider 1E, the material and dimensional structure of the plate spring members 22 and 24, and the material and dimensional structure of the cylindrical elastic member 23. With this design, the relative position between the slider holding portion 20 and the held portion 10 of the slider 1E can be easily prevented from shifting by providing an appropriate biasing force.

  The slider holding portion 20 for holding the held portion 10 of the slider 1E includes the plate spring members 22 and 24 and the cylindrical elastic member 23 as described above, so, for example, one of the plate spring members 22 and 24 Even when resonance occurs in a mechanical resonance system including any of them, the other cylindrical elastic member 23 acts to suppress the resonance. The opposite is also true. Therefore, since the slider holding portion 20 suppresses unnecessary vibration in the headband 1C and the slider 1E, it becomes difficult for the vibration to be transmitted to the housing 2. As a result, the headphones 1 are excellent in reproduction sound quality. The headphone 1 can not only adjust the relative positional relationship between the housing 2 and the headband 1C in accordance with the head and ears of the user to be worn, but also unnecessary vibration in the slider 1E becomes reproduction sound quality It can be prevented from affecting.

  In the above embodiment, the slider holding portion 20 is provided with the plate spring members 22 and 24 and the cylindrical elastic member 23. However, the slider holding portion 20 is an elastic member for giving a first urging force, and substantially the first urging force. As the elastic member for giving a second biasing force acting in the orthogonal direction, another elastically deformable elastic body / elastic structure can be used. Of course, the same elastic material may be used, and the first biasing force and the second biasing force may act on the held portion 10 of the slider 1E in a direction substantially orthogonal to each other. For example, instead of the plate spring members 22 and 24, an elastic member formed in a cylindrical shape and made of the same elastic material as the cylindrical elastic member 23 is prepared, and one end is fixed to the outer fixing member 21 or the inner fixing member 25 The side may be in contact with the outer flat surface or the inner flat surface of the held portion 10.

  Further, the slit 11 may not be provided in the held portion 10 of the slider 1E as long as the plate spring member 22 is provided to apply the first biasing force to the held portion 10 of the slider 1E. For example, like the end face 12 defining the slit 11, the cylindrical elastic member 23 elastically deforms with respect to the side surface of the strip-like base of the held portion 10 at a substantially orthogonal angle on which the second biasing force acts. The second curved force may be applied by contacting the outer curved surface portion.

  Further, in the above embodiment, the holding portion 10 of the slider 1E and the end face 12 defining the slit 11 are not provided with the concavities and convexities to be fitted when held by the slider holding portion 20. However, a plurality of stepped concaves or convexes are respectively provided, and the concaves and convexes are provided to the elastic force applying the first biasing force of the slider holding portion 20 and the elastic body applying the second biasing force. Alternatively, a convex or a concave may be provided so as to fit in a convex shape, and the relative positional relationship between the housing 2 and the headband 1C may be determined stepwise.

  In the headphone 1 of the above embodiment, the headband 1C is provided with the slider holding portion 20 for holding the slider 1E at both ends, but the slider holding portion 20 is provided on the housing 2 side to make the slider 1E a headband It may be provided to be connected to 1C. When the hanger 1D is provided as in the above embodiment, the slider holding portion 20 may be provided on the hanger 1D so as to connect the slider 1E to the headband 1C. Even in the case where the headband 1C includes the slider 1E, propagation of unnecessary vibration in the slider 1E to the housing 2 can be suppressed, so that headphones that are less likely to adversely affect reproduction sound quality can be configured. it can.

  The headphones of the present invention are not limited to overhead type headphones as illustrated, but may be headphones provided with a slide structure for adjusting the relative positional relationship between the housing and the headband. Moreover, if a member corresponding to a headband is included, the present invention is applicable not only to headphones but also to earphones, canal type earphones, and the like. The headphones and earphones of the present invention are not limited to home stereo reproduction or multi-channel surround reproduction, but can be applied to on-vehicle audio equipment and sound reproduction equipment such as movie theaters.

REFERENCE SIGNS LIST 1 headphone 1 C head band 1 E slider 10 held portion 11 slit 12 end face 2 housing 20 slider holding portion 21 outer fixing member 22, 24 plate spring member 23 cylindrical elastic member 25 inner fixing member 26, 27, 30 protrusion 3 ear contact portion

Claims (4)

A housing for housing the speaker unit, a headband, and one end connected to either the housing or the headband, and the other end slidably held relative to the other of the housing or the headband And a slider
At least one of the headband and the housing has a slider holding portion that slidably holds the held portion of the slider;
The slider holding portion has a through hole, a first elastic member which is in contact with a first contact portion of the held portion of the slider to apply a first biasing force, and has a through hole and a second contact portion A second elastic member for applying a second urging force in a direction substantially orthogonal to the first urging force, and a convex portion passing through the through hole , the first elastic member and the second elastic member And a fixing member for fixing the elastic member.
headphone. The slider includes the held portion in which a slit in the shape of a long hole is formed in a strip-like base, and held by the slider holding portion.
The second elastic member is a substantially columnar member which passes through the slit and abuts on the second contact portion to apply the second biasing force.
The headphone according to claim 1. The first contact portion of the held portion of the slider is a flat surface portion having no unevenness of the base, and the second contact portion is an end surface portion having no unevenness defining the slit is there,
The headphone according to claim 2. The first elastic member of the slider holding portion is a flat spring-like member formed of a metal material or a resin material, and the second elastic member is a member formed of a silicon resin material or a rubber material.
The headphone according to any one of claims 1 to 3.