JPH0580090U - Headphone driver unit fixing device - Google Patents

Abstract

(57) [Summary] [Purpose] Driver units with different diameters and thicknesses can be fixed to the same baffle plate, and the same baffle plate facilitates grade changes. [Structure] At least two types of fixing claws 5, 6 having different heights are erected on a baffle plate on the same diameter of a base 2 of the same baffle plate, and further, locking portions 7, 8 of the fixing claws 5, 6 are provided. Are provided in at least two stages having different diameters and heights.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fixing device for mounting and fixing a driver unit for headphones on a baffle plate, and more particularly to a fixing device for a driver unit for headphones that can fix different driver units on the same baffle plate. ..

[0002]

[Prior Art]

 The headphone driver unit is attached to the baffle plate like the speaker, and the low-frequency characteristics are adjusted by the baffle plate. For this attachment, generally, a guide for positioning the driver unit is provided on the baffle plate, and two or four claws are erected upright on the baffle plate, the position of the driver unit is defined by the guide, and the claws are used. The driver unit was elastically sandwiched and fixed to the base surface of the baffle plate.

[0003]

[Problems to be solved by the device]

 However, if the size and thickness of the driver unit in the radial direction differ when fixed by such a method, it is necessary to prepare a baffle plate provided with different types of claws and guides according to the different size. .. Therefore, even if an attempt was made to set headphone variations using the same baffle plate, it was difficult to change the sound quality because there were few compatible driver units. That is, if the diameter and thickness of the driver unit are the same, multiple grades can be set depending on the material of the magnet, the shape and material of the diaphragm, etc., but due to dimensional constraints such as low range volume and braking. It was difficult to change the sound quality.

The present invention has been made in view of the circumstances of the prior art, and an object thereof is to fix driver units having different diameters and thicknesses to the same baffle plate. The purpose is to provide a device for fixing a driver unit for headphones that makes it easy to change the grade.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned object, the present invention provides a headphone driver unit fixing device in which a headphone driver unit is fixed to a baffle plate through a plurality of fixing claws having a locking portion at the tip. The fixed claw is composed of at least two types of fixed claws having different heights on the circumference of the same diameter. In this case, it is preferable that the locking portions of the fixed claws are provided in at least two stages having different diameters and heights.

[0006]

[Action]

 According to the above-mentioned means, the driver units having the same diameter and different thickness can be fixed by locking the locking units of the locking portions of the fixing claws which can be locked. In this case, when the driver unit has a different diameter, it is possible to deal with it by selecting a step in which the locking portion can be locked.

[0007]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a baffle plate according to an embodiment. A ventilation hole 3 is formed in the base 2 of the baffle plate 1, and six guides 4, three large fixed claws 5, and three small fixed claws 6 are provided upright at the same diameter position. It is integrally molded of elastic synthetic resin material.

The fixed large claws 5 are arranged at 120 degree intervals, the fixed small claws 6 are also arranged at 120 degree intervals in the central portion between the adjacent fixed large claws 5, and the guide 4 is arranged adjacent to the fixed large claws 5 and the fixed small claws 6. Are set up between each. Stepped locking portions 7 and 8 are formed inward at the tips of the fixed large claw 5 and the fixed small claw 6. These locking portions 7 and 8 are provided at the same distance from the tip, so that the height t1 of the locking portion of the fixed large pawl 5 from the surface of the base 2 and the locking of the fixed small pawl 6 are locked. The height t2 of the part has a relationship of t1> t2.

When fixing the driver unit 9 to the baffle plate 1 configured as described above, as shown in FIG. 2, the fixing claws 5 and 6 provided at the positions corresponding to the diameter D1 of the driver unit 9 are fixed. On the other hand, when the driver unit 9 having a thickness of t1 is inserted from the tip direction of the fixed large pawl 5, the fixed pawls 5 and 6 are opened respectively, and the upper end of the driver unit 9 passes the locking portion 7 of the fixed large pawl 5. At that time, it returns and is locked by the locking portion 7. At this time, since the fixed small claw 6 elastically abuts the side surface 9 of the driver unit 9 and pushes the driver unit 9 toward the center, it functions to position the driver unit 9 and prevent rattling. Further, in the driver unit 9 having the thickness t2, the locking portion 8 is locked when the driver unit 9 passes through the fixed large pawl 5 and further passes the locking portion 8 of the fixed small pawl 6, and the driver unit 9 is fixed. It

Further, when the locking portion 7 formed on the fixed claw (the fixed large claw 5 is described as an example in the figure) has multiple stages, for example, two stages, the fixed large claw 5 is formed as shown in FIG. Two locking parts 7a and 7b are formed. In this case, the upper locking portion 7a corresponds to a small-diameter and thick driver unit 9, and the lower locking portion 7b corresponds to a large-diameter and thin driver unit 9. In other words, the driver unit 9 has a thickness of t3 and a diameter of D2, and a thickness of t4 and a direct diameter of D3. If t3> t4 and D2 <D3, the fixed large If the claws 5 are formed so as to correspond to the size thereof, the driver unit 9 having a thickness t3 and a diameter D2 is locked by being fixed to the upper locking portion 7a, and the thickness t4 is a diameter. The driver unit 9 of D3 is locked and fixed to the lower locking portion 7b as shown in FIG.

If a similar locking portion is formed on the fixed small claw 6 as well, and the thickness and diameter of the driver unit 9 to be locked are set to dimensions different from those of the fixed large claw 5, the result is shown in FIG. Thus, four locking portions 7a, 7b, 8a, 8b are formed, and four types of driver units 9 having different thicknesses and diameters corresponding to the set dimensions of the locking portions 7a, 7b, 8a, 8b are locked. Can be fixed.

As described above, it is possible to fix four or more types of driver units 9 by appropriately selecting and combining the height dimension of the fixing claw, the set height of the locking portion and the dimension of the determined diameter. As a result, the driver unit 9 having different characteristics can be attached to one baffle plate 1 to easily increase the variation of headphones.

[0014]

[Effect of the device]

 As is apparent from the above description, according to the invention of claim 1, which is provided with at least two types of fixing claws having different heights which are provided upright on the circumference of the same diameter, the same diameter has different thickness. The driver unit can be fixed to the same baffle plate.

Further, according to the invention of claim 2, wherein the locking portion of the fixed claw according to claim 1 is provided with at least two stages with different diameters, the driver units having different diameters and thicknesses are the same. Can be fixed to the baffle plate. Furthermore, by combining the height of the fixed claw, the height of the locking part and the radial position, it becomes extremely easy to fix various driver units to the same baffle plate, and the same baffle plate can be used to You can easily make changes.

[Brief description of drawings]

FIG. 1 is a perspective view of a baffle plate according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a state in which a driver unit is attached to the baffle plate according to this embodiment.

FIG. 3 is an explanatory diagram showing a state in which a driver unit is attached to another type of baffle plate.

FIG. 4 is an explanatory diagram showing an example in which the embodiments shown in FIGS. 2 and 3 are combined.

[Explanation of symbols]

 1 Baffle plate 2 Base 3 Vent hole 4 Guide 5 Fixed large claw 6 Fixed small claw 7, 7a, 7b Locking part 8, 8a, 8b Locking part 9 Driver unit

Claims (2)

[Scope of utility model registration request] 1. A headphone driver unit fixing device for fixing a headphone driver unit through a plurality of fixing claws provided upright on a baffle plate and having locking portions formed at the ends thereof, wherein the fixing claws have the same diameter. A driver unit fixing device for a headphone, comprising at least two types of fixing claws having different heights on the circumference of the. 2. The headphone driver unit fixing device according to claim 1, wherein the locking portion of the fixing claw is provided in at least two stages having different diameters and heights.