JP3991245B2 - Outsert molding member and portable recording / reproducing apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The invention of the present application is directed to an outsert molding member comprising a metal base and a resin wall integrally formed on the base and a portable body using such an outsert molding member. The present invention relates to a mold recording / reproducing apparatus .
[0002]
[Prior art]
In so-called outsert molding, in which a resin structure is integrally formed on a metal base, members having various shapes can be integrally formed, and as a result, the cost of this member can be reduced. Has been adopted in many fields. Incidentally, FIG. 3 shows the vicinity of the insertion portion of the sheet gum-like secondary battery in the portable cassette type recording / reproducing apparatus.
[0003]
In order to insert a plate-gum-shaped secondary battery into this cassette type recording / reproducing apparatus, as shown in FIG. 3 (a), the lid 12 attached to the side surface of the cassette type recording / reproducing apparatus 11 is extended along the side surface. And slide. Then, from this state, as shown in FIG. 3 (b), the lid 12 is rotated to open the insertion portion 13, and the secondary battery 14 is inserted into the insertion portion 13 as shown in FIG. 3 (b). To do.
[0004]
As shown in FIG. 3B, the insertion portion 13 includes a casing of the cassette type recording / reproducing apparatus 11, a wall 15 in the cassette type recording / reproducing apparatus 11, and the like. The wall body 15 is integrally formed with the chassis by the above-described outsert molding. That is, the cassette type recording / reproducing apparatus 11 uses an outsert molding member having a metal chassis and a resin wall 15.
[0005]
FIG. 4 shows a first conventional example of an outsert molded member. In the outsert molding member 21 of the first conventional example, a long wall 23 made of a resin is integrally formed on a metal base 22 and is erected.
[0006]
FIG. 5 shows a second conventional example of an outsert molded member. Also in the outsert molding member 24 of the second conventional example, a resin wall 26 is integrally formed on a metal base 25 and is erected. However, the wall body 26 is divided into a plurality of short wall portions 26a along the base body 25, and a gap 26b is provided between the wall portions 26a.
[0007]
FIG. 6 shows an outsert molding member that is applied to the cassette type recording / reproducing apparatus 11 shown in FIG. 3 and is the same type as the second conventional example shown in FIG. Accordingly, in this outsert molding member 31, a resin wall body 33 is integrally formed on a metal chassis 32, and the wall body 33 is divided into a plurality of wall portions 33 a along the chassis 32. In addition, a gap 33b is provided between the wall portions 33a.
[0008]
[Problems to be solved by the invention]
However, the resin shrinks at the time of molding, and the linear expansion coefficient differs between the metal and the resin. For this reason, in the outsert molding member 21 of the first conventional example shown in FIG. 4, for example, when the temperature changes, due to the difference in linear expansion coefficient between the metal and the resin, as shown in FIG. The wall body 23 is deformed in the plane, and accordingly, the base body 22 is also deformed in a direction perpendicular to the plane. Moreover, the long wall body 23 is often deformed.
[0009]
Further, when the temperature returns to room temperature, a crack 27 is likely to occur in the wall body 23 as shown in FIG. For this reason, in the outsert molded member 21 of the first conventional example, the yield and reliability were low. On the other hand, in the outsert molding member 24 of the second conventional example shown in FIG. 5, the wall body 26 is divided into a plurality of short wall portions 26a along the base 25, and in the short wall portion 26a, Less deformation.
[0010]
However, as is apparent from FIG. 6, if there is a gap 33b between the walls 33a, foreign matter may enter the cassette type recording / reproducing apparatus 11 from the insertion portion 13 of the secondary battery 14 through the gap 33b. It is easy to enter and the reliability of the cassette type recording / reproducing apparatus 11 is lowered. For this reason, a wall shape without a gap is formed by using a part 34 that is separate from the outsert molding member 31 in order to prevent intrusion of foreign matter, and the cost of the cassette type recording / reproducing apparatus 11 is due to this part 34. Increased.
[0011]
That is, with the conventional outsert molding members 21 and 24, it has been difficult to simultaneously improve the yield and reliability and reduce the cost of the applied equipment. Therefore, the invention of the present application has a high yield and reliability because the metal base body is not easily deformed and the resin wall body is not easily cracked. It is an object of the present invention to provide an outsert molded member that does not require the formation of a wall shape without an object and can reduce the cost of applied equipment, and a portable recording / reproducing device using such an outsert molded member. Yes.
[0012]
[Means for Solving the Problems]
In the outsert molding member and portable recording / reproducing apparatus according to the invention of the present application, since the wall body is divided into a plurality of wall portions along the base, the shrinkage of the resin during molding and the linear expansion coefficient between the metal and the resin Even if the wall body is deformed in the plane due to a difference or the like, the deformation is small in each wall portion.
[0013]
Although the curved surface portion connecting the adjacent wall portions is provided integrally with the wall, easy thin der lever, the curved portion is elastically deformed than the curved portion is a wall portion, as a result, the curved portion Is easy to change along the height direction of the wall. For this reason, even if the wall deforms and a difference occurs in the spacing between the walls along the height direction of the wall, the difference in the spacing between the walls is absorbed by the change in the opening width of the curved surface. Is done.
[0014]
Moreover, if Kere and height equal to each other of the curved portion from the height and the base of the wall from the base, the wall shape made of resin can be prevented from entering the foreign matter absent gap throughout It is formed only by the wall body.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows this embodiment. As shown in FIG. 1A, in the outsert molding member 41 of this embodiment, a resin wall 43 is integrally formed on a metal base 42, and the wall 43 is a base. 42 is divided into a plurality of short wall portions 43a.
[0016]
However, the wall portions 43a are connected by a curved surface portion 43b made of a resin integral with the wall portion 43a and having a U-shaped cross section. The curved surface portion 43b is thinner than the wall portion 43a, and the height of the wall portion 43a from the base 42 and the height of the curved surface portion 43b from the base 42 are equal to each other.
[0017]
In such an outsert molded member 41 of this embodiment, for example, the temperature changes, and the wall 43 is in-plane as shown in FIG. 1B due to the difference in linear expansion coefficient between the metal and the resin. Even when deformed, the wall body 43 is divided into a plurality of short wall portions 43a along the base body 42, and the short wall portions 43a are less deformed and hardly cracked.
[0018]
Further, since the curved surface portion 43b is thinner than the wall portion 43a, the curved surface portion 43b is easily elastically deformed. As a result, as shown in FIG. 1B, the opening width of the curved surface portion 43b is the height of the wall portion 43a. It is easy to change along the direction. For this reason, even if the wall body 43 is deformed and a difference occurs in the interval between the wall portions 43a along the height direction of the wall portion 43a, the opening width of the curved surface portion 43b changes to change the distance between the wall portions 43a. The difference in spacing is absorbed. For this reason, the base body 42 is not easily deformed, and the wall body 43 is further less likely to be cracked.
[0019]
Moreover, since the height of the wall 43a from the base 42 and the height of the curved surface 43b from the base 42 are equal to each other, there is no gap across the entire surface as is apparent from FIG. The wall shape that can prevent the intrusion of the resin is formed only by the wall 43 made of resin. For this reason, it is not necessary to form a wall shape without a gap with a separate component in order to prevent intrusion of foreign matter.
[0020]
FIG. 2 shows an outsert molding member which is applied to the cassette type recording / reproducing apparatus 11 shown in FIG. 3 and is the same type as the embodiment shown in FIG. Therefore, even in this outsert molding member 44, the metal chassis 45 made of resin walls 46 are erected integrally molded, the wall 46 is a plurality of wall portions 4 6 a along the chassis 45 The wall portions 4 6 a are connected to each other by a curved surface portion 46 b.
[0021]
In this outsert molding member 44, there is no gap between the wall portions 4 6 a, so foreign matter can enter the cassette type recording / reproducing apparatus 11 from the insertion portion 13 of the secondary battery 14 through the gap. Therefore, the reliability of the cassette type recording / reproducing apparatus 11 is high. Therefore, unlike the outsert molding member 31 shown in FIG. 6, it is not necessary to form a wall shape without a gap by using a part 34 that is separate from the outsert molding member 31 in order to prevent intrusion of foreign matter.
[0022]
In addition, in the outsert molding members 41 and 44 of the present embodiment, the cross sections of the curved surface portions 43b and 46b are U-shaped as is apparent from FIG. 2, but the cross sections of the curved surface portions 43b and 46b are semicircular or semicircular. It may be oval or U-shaped. Further, the outsert molding member 44 shown in FIG. 2 is obtained by applying the invention of the present application to the insertion portion 13 of the secondary battery 14 in the portable cassette-type recording / reproducing apparatus 11. It can also be applied to.
[0023]
【The invention's effect】
In the outsert molding member and portable recording / reproducing apparatus according to the invention of the present application, even if the wall body is deformed in the plane due to resin shrinkage during molding or a difference in linear expansion coefficient between the metal and the resin, of the Ino small deformation in the wall portion, cracks in the wall of the metal-made substrate is deformed hardly and the resin is not easily Ji live, high yield and reliability.
[0024]
Further, if the curved surface portion is thinner than the wall portion, even if there is a difference in the spacing between the wall portions along the height direction of the wall portion, the spacing between the wall portions is changed by changing the opening width of the curved surface portion. Therefore, the metal base is not easily deformed and the resin wall is not easily cracked, and the yield and reliability are high.
[0025]
Moreover, if the height of the wall portion from the base and the height of the curved portion from the base are equal to each other, there is no gap across the entire wall, and the wall shape that can prevent the intrusion of foreign matter is a resin wall. Since it is formed only by the body, it is not necessary to form a wall shape without a gap with separate parts in order to prevent intrusion of foreign matter, and the cost of the applied device can be reduced.
[Brief description of the drawings]
FIGS. 1A and 1B are side sectional views of an embodiment of the present invention, in which FIG. 1A shows a state where the wall body is not deformed, and FIG. 1B shows a state where a wall body is deformed.
FIGS. 2A and 2B show an embodiment applied to a portable cassette type recording / reproducing apparatus, where FIG. 2A is a view as viewed from an arrow A in FIG. 2B, FIG. 2B is a plan view, and FIG. FIG.
FIG. 3 is a perspective view illustrating the vicinity of a secondary battery insertion portion in a portable cassette type recording / reproducing apparatus to which the invention of the present application can be applied, and sequentially illustrating a secondary battery insertion method.
FIGS. 4A and 4B are side sectional views of a first conventional example of the invention of the present application, in which FIG. 4A shows a deformed state and FIG. 4B shows a recovered state.
FIG. 5 is a side sectional view of a second conventional example of the present invention.
FIGS. 6A and 6B show a second conventional example applied to a portable cassette type recording / reproducing apparatus, where FIG. 6A is a view taken along an arrow A in FIG. 6B, FIG. 6B is a plan view, and FIG. ) Is a C arrow view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 41 ... Outsert molding member, 42 ... Base | substrate, 43 ... Wall body, 43a ... Wall part, 43b ... Curved part, 44 ... Outsert molding member, 45 ... Chassis (base | substrate), 46 ... Wall body, 46a ... Wall part, 46b ... curved surface part

Claims (6)

In an outsert molding member comprising a metal base body and a resin wall body that is integrally formed with the base body and has a predetermined height and thickness that is erected on the base body.
The wall body is divided into a plurality of wall portions having a predetermined length along the base body, and the adjacent wall portions are connected to each other by a curved surface portion having the same height as the wall body and curved in the thickness direction, together with the wall portion. An outsert molding member characterized by being provided integrally. The outsert molded member according to claim 1, wherein a thickness of the curved portion is thinner than a thickness of the wall portion. 2. The outsert molded member according to claim 1, wherein the curved surface portion has any one of a U shape, a semicircular shape, a semielliptical shape, and a U shape . A mobile phone using an outsert molding member comprising a metallic base body and a resin wall body which is molded integrally with the base body and is erected on the base body and having a predetermined height and thickness . In the mold recording / reproducing apparatus,
Along the wall to the substrate bonded with the curved portion is equal to the wall portions adjacent the wall and height with separated into a plurality of wall portions of a predetermined length, provided integrally with said wall portion co A portable recording / reproducing apparatus. The portable recording / reproducing apparatus according to claim 4, wherein a thickness of the curved surface portion is thinner than a thickness of the wall portion. The portable recording / reproducing apparatus according to claim 4, wherein the curved surface portion has any one of a U-shape, a semicircular shape, a semi-elliptical shape, and a U-shape .

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