Patent Translate Powered by EPO and Google Notice This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate, complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or financial decisions, should not be based on machine-translation output. DESCRIPTION JPS62193497 [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a honeycomb diaphragm having an air vent for improving the flow of air in a dust cap, for example, in a speaker device. 2. Description of the Related Art Conventionally, as a honeycomb diaphragm of this type, one having a configuration as schematically shown in FIG. 3 is known. To explain this briefly, it is shown by a symbol 1 in the figure / \ Nicam vibrating plate, a honeycomb core 2 and its front and back surfaces, a front surface to be adhered to the back surface, and a pair of skin materials 3.4. As shown in FIG. 6B, an air vent hole 6 is formed by drilling with a drill blade 5 or the like. And, such a honeycomb diaphragm 1 is employed as a diaphragm in a speaker device as schematically shown in FIG. Here, the group 11 in the drawing is a pole piece having a protrusion 11a at its center, and 12 is an annular magnet laminated and arranged on the pole piece llh at an appropriate interval around the protrusion 11a. An annular magnetic plate 13 is fixed to the 1-side of the ring by appropriate means. As a result, the magnetic circuit 10 for the voice coil 14 inserted and disposed at an appropriate distance in the air gap portion inside the magnetic plate 13 is configured. Reference numeral 15 denotes a voice coil bobbin formed by winding the voice coil 14. The Pobin 15 is a spider 17 for a front frame 1 /-16 of a speaker fixed to a magnetic plate 13 or the like constituting the magnetic circuit 10. And the voice coil 14 is supported in the IIT dynamic rif ability through the honeycomb diaphragm 1 so that the portion of the voice coil 14 is positioned in the space between the protrusion 11a of the pole piece 11 and the magnetic sleeve L / -413. It is inserted and arranged. In FIG. 1, 18 is an edge for connecting the outer peripheral edge of the honeycomb diaphragm 1) to the 1 / − side, and 19 is a dust joined and fixed by an adhesive so as to cover the central portion of the honeycomb diaphragm 1. The air vent hole 6 is positioned at a position corresponding to the dust cap 19 by a cap. This is because the air flow in the dust cap 19 is deteriorated without the air vent hole 6, and a force that makes it difficult to 11-05-2019 1 vibrate the honeycomb diaphragm 1 acts, and distortion of the vibration system is increased. In particular, many loudspeaker diaphragms for amplitude low-frequency low-pitched areas are often provided with the hill-shaped holes 9 described above. Then, in the speaker mounting with such a configuration, the protruding portion 11a of the pole piece 11,! l: The air gap with the magnetic plate 13 is, as is well known, a magnetic circuit generates a magnetic field by driving a current according to the left-hand rule of Fleming by supplying a current to the voice coil 14 inserted in the magnetic air gap. A force is generated, whereby the voice coil 14 vibrates, this vibration is transmitted to the side of the honeycomb diaphragm 1 via the povin 15, and the honeycomb diaphragm 1 vibrates to emit a sound to the outside. Met. [Problems to be solved by the invention] By the way, as described above, the conventional honeycomb diaphragm l having the air vent holes 6 is started as shown in FIG. 3 (a), (b) and (c). The front and back skin materials 3.4 are adhered to the front and back surfaces of the honeycomb core 2 with an adhesive applied, and then they are positioned in the predetermined places, for example, the dust cap when incorporated into a speaker device. It was formed by drilling the air vent hole 6 by post processing with the drill blade 5 at several places. However, in such a conventional manufacturing method, if the cutting of the drill bit 5 becomes worse at the time of drilling the air vent hole 6, the honeycomb core 2 or the face near the air vent hole 6, the surface of the eyebrow skin 3, The chip 4 may be chipped or chips of the core 2 and the skin material 3 ° 4 may remain in the air vent 6, and troublesome work for removing the same may be required. When it enters into the cells of the honeycomb core 2, it is virtually impossible to completely remove it. Therefore, when the honeycomb diaphragm 1 is incorporated into a speaker device to generate a sound, a chattering phenomenon is generated. It had a problem such as causing it to occur. The present invention has been made in view of a series of spring conditions, and eliminates the problems such as the conventional honeycomb core, the front and back skin materials, and the problem of the remaining residue due to the air holes of the cutting material and removing the problems. It is an object of the present invention to provide an inexpensive method for manufacturing a honeycomb diaphragm in a cylinder which is free from the occurrence of chattering and the like in a speaker device according to the present invention. [Step F for Solving the Problems] A method of manufacturing a honeycomb diaphragm according to the present invention comprises: a second cam core and the front and back surfaces thereof; Honeycomb diaphragm in which air vents are drilled at predetermined locations. An air vent hole is previously formed in the front and back skin materials, and then, the front and back skin materials are attached to the front and back surfaces of the honeycomb core. [Operation] According to the present invention, since the air vent hole is formed as a front work on the front and back skin materials, and this is laminated and adhered to the honeycomb core, the core in the vicinity of the air vent hole as in the prior art And there is no problem such as chipping of the skin material, which leaves the scum in the air vent and requires removal operation, and as a result, when it is silked in the speaker device, This air vent does not cause chattering. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in 11-05-2019 2 detail using the embodiments shown in the drawings. 1 (a) and 1 (b) show an embodiment of a method of manufacturing Hough '', 6 ', and a vibration handle according to the present invention, and in these figures, the same or corresponding parts as in FIG. Are given the same numbers and their explanations are omitted. Now, according to the present invention, the honeycomb core 2 and the front and back skin materials 3.4 laminated and attached to the front and back thereof are formed by the air holes 3.4. In the abovedescribed front and back skin materials 3 and 4, air holes 6a and 6b are formed in advance as pre-processing, and then the front and back skin materials 3 and 4 are honeycombed. It is characterized in that it is formed by sticking to the front and back surfaces of the core 2 through an adhesive. And, according to the present invention, the air vents 6a are pre-processed to the front skin materials 3 and 4 according to the present invention. 6b are respectively drilled, and these are laminated and adhered to the honeycomb core 2 as post-processing, so that the hole drilling operation is performed after the honeycomb diaphragm 1 is formed in the laminated state as in the prior art That is, no chipping of the core 2 and the skin materials 3 and 4 in the vicinity of the air vent hole 6 occurs, thereby eliminating the problem that the residue remains in the air vent hole 6 and the removing operation is required. As a result, when this is incorporated into a speaker device, the air bubble hole 6 does not cause a chattering phenomenon, and the honeycomb diaphragm 1 having the air hole 6 (6a, 6b) is stably manufactured. It is possible. Here, the air vents 6a and 6b according to the present invention are drilled only in the front and back skin materials 3.4, and no particular drilling operation is performed on the honeycomb core 2, but this honeycomb core is not It will be readily understood that in 2 a large number of cells are pierced and through which air can flow and air can be obtained as an air vent. Further, such a honeycomb diaphragm 1 is incorporated in the speaker device in the state as shown in FIG. 2, but this is the same as FIG. 4 described above, and the detailed description thereof will be omitted. The present invention is not limited to the structure of the embodiment described above, and it is free to appropriately modify or change the shape, structure, etc. of each part, including the shape of the honeycomb diaphragm 1, etc. 5 as needed. . [Effects of the Invention] As described above, according to the method for manufacturing a honeycomb diaphragm according to the present invention, the honeycomb core and the front and back surfaces thereof are formed of the front and back skin materials laminated and attached A honeycomb diaphragm in which an air vent hole is drilled in the predetermined place is previously drilled in the front and back skin materials as an air vent hole as a pre-process, and then these front and back skin materials are Since it is formed by pasting on the back side, chipping of the core and skin material in the vicinity of the conventional air vent hole does not occur despite the method in the cylinder and cheap, so that the scraps are air There are no problems such as remaining in the drilled holes and the need for removing them, and as a result, when this is incorporated into, for example, a speaker device, such air vents also cause a chattering phenomenon. Not stable And there are various excellent effects such as the Hanikano-vibration plate may easily formed. 11-05-2019 3 [0002] Brief description of the drawings [0003] 1 (a) and 1 (b) are manufacturing process diagrams showing an embodiment of a method of manufacturing a bar-cam diaphragm according to the present invention, and FIG. 2 is a schematic cross-sectional view of a speaker apparatus incorporating the honeycomb diaphragm. FIGS. 3 (a), (b) and (c) are manufacturing process diagrams showing a conventional example, and FIG. 4 is a schematic cross-sectional view of a speaker apparatus incorporating a conventional honeycomb diaphragm. l · · · Honeycomb diaphragm, 2 · · · Honeycomb core, 3, 4 * * @ e surface, back skin material, 6a. 6b (6). Agent Masaru Oiwa Figure 1 Figure 2 Figure 3 Figure 4 Day 11-05-2019 4
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