JP3331492B2 - Electromagnetic actuator with coupler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil bobbin which is disposed in a housing made of a magnetic material and has a flange at at least one end, a coupler housing extending from one side of the coil bobbin via a connecting portion, and one end thereof. A pair of coupler terminals connected to the coil wound around the coil bobbin and the other end disposed in the coupler housing were integrally formed of a synthetic resin material, and a fixed core and a movable core were disposed in the coil bobbin. The present invention relates to an electromagnetic actuator with a coupler.

[0002]

2. Description of the Related Art A conventional electromagnetic actuator with a coupler is:
As shown in FIGS. FIG. 4 is a longitudinal sectional view of an electromagnetic actuator with a coupler. FIG. 5 is a cross-sectional view taken along line AA of FIG. Reference numeral 10 denotes a coil bobbin formed by a cylindrical portion 10A, a thick upper flange portion 10B formed upward in the figure of the cylindrical portion 10A, and a thin lower flange portion 10C formed below. A connecting portion 10D extends from the portion 10B toward one side X, and a coupler housing 10E that opens upward is formed at the connecting portion 10D. That is, the coupler housing 10E and the upper flange 10
B is connected via a connection portion 10D. The connecting portion 10D including the upper flange portion 10B is provided with a diode housing groove 10F that opens upward. In other words, the diode housing groove 10F is
The opening is formed in the upper surface of the connection portion 10D and is recessed. In addition, diode terminal support grooves 10G for supporting terminals that protrude laterally from both ends of the diode, which will be described later, are continuously provided at both end portions of the diode housing groove 10F. This diode terminal supporting groove 10G is also connected to the connecting portion 1 including the upper flange portion 10B.
Open upward from 0D. Then, the cylindrical portion 10A, the upper flange portion 10B, the lower flange portion 10C, and the connecting portion 1
The coil bobbin 10 including the O.D. and the diode housing groove 10F including the coupler housing 10E and the diode terminal support groove 10G is molded using a synthetic resin material.

When the coil bobbin 10 is molded, the pair of coupler terminals 11 are integrally joined to the coil bobbin 10 by molding. Coupler terminal 11
Is formed by press-molding a thin plate made of a conductive material, and has a terminal portion 11A at one end, a diode connection piece portion 11B bent into a U-shape at the other end, and a coil connection piece portion 1
1C, the terminal portion 11A and the connecting piece portions 11B, 11C.
Are connected by a connection plate 11D. More specifically, the connection plate 11D of the coupler terminal 11 is
D and the upper flange 10B, and the terminal 1
1A protrudes into the coupler housing 10E,
The two connection pieces 11B and 11C are arranged to protrude outward from the upper flange 10B. A coil 12 is wound around the outer periphery of the cylindrical portion 10A of the coil bobbin 10 having the pair of coupler terminals 11 formed by molding.
1 coil connecting piece 11C, and the coil 12
Is joined to the coil connection piece 11C of the other coupler terminal 11. On the other hand, a diode 13 for preventing noise is arranged in the diode housing groove 10F, and terminals 13A and 13A of the diode 13 extending outward from both ends thereof.
13B is supported in each diode terminal support groove 10G, and the terminal 13A of one diode 13 extending outward from the diode terminal support groove 10G is joined to the diode connection piece 11B of one coupler terminal 11. The terminal 13B of the other diode 13 extending outward from the diode terminal support groove 10G is similarly connected to the diode connection piece 11B of the other coupler terminal 11.

The coil bobbin 1 having the above configuration is
Numeral 0 is disposed in a housing 14 made of a U-shaped magnetic material. That is, the upper bent piece 1 of the housing 14
4A is disposed on the upper surface of the upper flange portion 10B and the connection portion 10D of the coil bobbin 10, the lower bent piece portion 14B is disposed on the lower surface of the lower flange portion 10C, and the side wall piece portion 14C is
It is arranged facing the outer periphery of 0A. Reference numeral 15 denotes a fixed core that is fixedly disposed inside the cylindrical portion 10A of the coil bobbin 10, and 16 denotes a movable core that is movably disposed inside the cylindrical portion 10A and disposed to face the fixed core 15, Further, reference numeral 17 denotes a spring for applying an elastic force in a direction in which the movable core 16 is separated from the fixed core 15.

Now, when a current is supplied to the coil 12 via the terminal portion 11A and the coupler terminal 11, the housing 1
4. Attraction force is generated between the cores 15 and 16 by the magnetic flux flowing through the movable core 16 and the fixed core 15, whereby the movable core 16 moves toward the fixed core 15 against the spring force of the spring 17. On the other hand, when the current supply to the coil 12 is cut off, the attractive force between the two cores 15 and 16 disappears, whereby the movable core 16 moves in the direction away from the fixed core 15 by the spring force of the spring 17. I do.

[0006]

According to such a conventional electromagnetic actuator with a coupler, the diode housing groove 10 for housing the diode 13 in the coil bobbin 10 is arranged.
The following inconvenience occurs when the F is recessed in the connection portion 10D including the upper flange portion 10B that connects the coupler housing 10E and the upper flange portion 10B. (1) The thickness T of the connection portion 10D is
It becomes thin corresponding to the groove depth of G. According to the above, when the coil 12 is wound around the outer periphery of the cylindrical portion 10A of the coil bobbin 10, or when the tape 18 is wound around the outer periphery of the coil 12, the terminal 13A of the coil 12 and the diode 13 is further connected to the coupler terminal 11. , 13B, and further, at the time of attaching the coil bobbin 10 to the housing 14, such that the external force is not applied to the coupler housing 10E protruding outward from the upper flange 10B. It must be done carefully. According to this, the work efficiency is hindered, and a reduction in manufacturing cost cannot be achieved. (2) Terminal portion 11 protruding into coupler housing 10E
A is connected to a power-supply-side coupler for connection to an external power supply, and an external force is applied to the connection portion 10D at the time of the fitting connection and the removal. And since it is necessary to ensure sufficient strength against this external force, the thickness T of the connection portion 10D tends to be increased,
According to this, especially in the longitudinal direction of the coil bobbin 10 (FIG. 4)
In the vertical direction), which is not preferable in reducing the size of the electromagnetic actuator. (3) Coupler housing 10E and diode storage groove 10
F is arranged in close proximity, and according to this, the junction between the terminals 13A and 13B of the diode 13 and the diode connecting piece 11B of the coupler terminal 11 is performed at a location close to the coupler housing 10E. Will be. According to the above description, since the coupler housing 10E is largely located in the vicinity of the joining portion, the joining workability is deteriorated, and the working efficiency is impaired. (4) Coupler housing 10E and diode storage groove 10
When both F and F are arranged on one side X, the coupler housing 10E protrudes greatly toward the one side X, which impairs the degree of freedom of mounting on the device.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to improve the working efficiency of an electromagnetic actuator with a coupler having a diode and reduce the manufacturing cost. Provided is an electromagnetic actuator with a coupler having toughness against an external force applied to a coupler housing without increasing the size of a coil bobbin. It is in.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, an electromagnetic actuator with a coupler according to the present invention includes a pair of coupler terminals having a diode formed on the upper surface of a flange portion of a coil bobbin made of a synthetic resin material molded in advance. Insert into the collar,
In an electromagnetic actuator with a coupler, in which a terminal of a diode is fitted and connected to a coupler terminal, and then the flange and the upper surface of the diode are covered with a housing made of a magnetic material, a coil bobbin having a cylindrical portion and a flange above the cylinder, A coupler housing extending to the side and a connecting portion connecting the coupler housing and the flange are integrally formed of a synthetic resin material, wherein the coupler terminal is integrally formed with the flange, and a diode housing groove and a diode terminal are formed. The support groove is formed in the upper surface of the flange portion and is formed in a concave shape by opening the opposite side of the coupler housing and the connecting portion with the cylindrical portion as the center, and the housing has a U shape and is formed on the opening side of the housing.
A coupler housing and a connection portion are arranged, and a diode housing groove and a diode terminal support groove are arranged on one side of the side wall of the housing. On the other hand, a diode connection piece of the coupler terminal and a coil connection piece formed outside the same. The first feature is that the first and second portions are disposed in the vicinity of a diode terminal support groove recessed in the flange portion, the terminal of the diode is connected to the diode connection piece, and the coil is connected to the coil connection piece. .

[0009] In addition to the first feature, the present invention is characterized in that, when the pair of coupler terminals is molded into a coil bobbin made of a synthetic resin material, the terminal portion of the coupler terminal and the coil portion are disposed in the coupler housing. The connection plate between the coil connection piece and the diode connection piece to which the terminal of the diode and the terminal of the diode are connected is connected in the direction S orthogonal to the upper surface of the flange.
The second feature is that the positioning and fixing are simultaneously performed by a molding die from different directions in a direction P parallel to the upper surface of the flange portion.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of an electromagnetic actuator with a coupler according to the present invention. FIG. 1 is a longitudinal sectional view of an electromagnetic actuator with a coupler. FIG. 2 is a cross-sectional view taken along line BB of FIG. FIG. 3 is a perspective view of a coupler terminal used in FIG. It is. Note that the same reference numerals are used for the same structures as those of the conventional example, and only different portions will be described. The coil bobbin 1 includes the following. 1A is a cylindrical portion having a cylindrical shape, and an upper flange portion 1B mainly having a thick shape is formed upwardly toward the outer peripheral side, and a lower flange portion having a thin shape is formed below the cylindrical portion. 1C is formed toward the outer peripheral side. The upper flange 1B is formed with a coupler housing 1D on one side X from a line DD passing through the center C of the cross section of the cylindrical portion 1A, and the coupler housing 1D is connected to the upper flange 1B. It is connected via the unit 1E. This is shown in FIG. In this example, the coupler housing 1D was opened upward.

The diode housing groove 1F for housing the diode 13 is recessed in the flange 1B above the other side Y with respect to the line DD, and the diode housing groove 1F is formed in the upper flange 1B. Open to upper surface 1G. A first diode terminal support groove 1H and a second diode terminal support groove 1J are recessed outward from both ends of the diode housing groove 1F, respectively. Grooves 1H and 1J are also upper surface 1 of upper flange 1B.
Open to G

According to the above, the coupler housing 1D is
It is formed on one side X from the flange 1B above the coil bobbin 1 through the connection 1E, and is provided with the diode terminal support grooves 1H, 1J.
The diode housing groove 1F including the
D, an opening is formed in the upper surface 1G of the upper flange portion 1B except for the connecting portion 1E so as to be recessed. In this embodiment, the coupler housing 1D including the connection portion 1E and the diode housing groove 1F including the terminal support grooves 1H and 1J face each other across a line DD passing through the center C of the cross section of the cylindrical portion 1A. Formed.

The coil bobbin 1 including the coupler housing 1D, the connecting portion 1E, the flange portions 1B and 1C, the cylindrical portion 1A, the diode housing groove 1F, and the diode terminal supporting grooves 1H and 1J is formed by molding a synthetic resin material. Are formed integrally. When the coil bobbin 1 is molded, the pair of coupler terminals 2 are simultaneously fixed to the coil bobbin 1 by molding.

The coupler terminal 2 will be described with reference to FIG. The coupler terminal 2 is formed by bending a conductive thin plate material, and has a terminal portion 2A that is bent upward at one end, and has a U-shape that opens upward at the other end. A diode connection piece 2B and a U-shaped coil connection piece 2C outside and open downward are bent and formed. The terminal portion 2A and the diode and coil connection pieces 2B and 2C are connected by a connection plate 2D, and most of the connection plate 2D is formed in a vertical direction. A positioning plate 2E extends toward the side in the horizontal direction at a substantially intermediate portion of the connection plate 2D, and a positioning hole 2F is formed in the positioning plate 2E so as to penetrate vertically. You.

A pair of such coupler terminals 2 are prepared as shown in FIG. The pair of coupler terminals 2 are located on the flange 1B and the connection 1E above the coil bobbin 1,
And a line Z perpendicular to a line DD passing through the center C of the cylindrical portion 1A.
In a state of being placed on both sides of −Z, the mold is integrally fixed to the coil bobbin 1. According to the above, the connection plate 2D of the coupler terminal 2 is molded and fixed to the coil bobbin 1, the terminal portion 2A is arranged to protrude into the bottom of the coupler housing 1D, and the diode connection piece portion 2B,
The coil connection piece 2C is disposed so as to protrude outward from the upper flange 1B. At this time, at least the connection pieces 2B and 2C are arranged near the diode terminal support grooves 1H and 1J.

The coil 12 is wound around the outer periphery of the cylindrical portion 1A of the coil bobbin 1 on which the pair of coupler terminals 2 are molded and fixed, and the diode housing groove 1 is formed.
F, a diode 13 is disposed, a terminal 13A of the diode 13 is inserted and disposed in one diode terminal supporting groove 1H, and a terminal 13B is disposed in the other diode terminal supporting groove 1H.
It is inserted and placed in J.

The terminal 13A of the diode 13 projects further outward than the one diode terminal support groove 1H, and the diode connection piece 2 of the one coupler terminal 2 is provided.
B, and the terminal 13B is connected to the diode connection piece 2B of the other coupler terminal 2. Furthermore, for example, a winding start wire of the coil 12 is connected to the coil connection piece 2C of the one coupler terminal 2. The winding end line of the coil 12 is connected to the coil connecting piece 2C of the other coupler terminal 2 (not shown).

With the above, the pair of coupler terminals 2, the diode 13, and the coil 12 are mounted on the coil bobbin 1, and the electrical connection between the coil 12, the pair of coupler terminals 2, and the diode 13 is completed.

The coil bobbin 1 is disposed in the housing 14 as in the prior art, and the fixed core 1
5 and the movable core 16 are arranged in the coil bobbin 1,
Assembly of the electromagnetic actuator with coupler is completed.

Then, the coil 12 is connected via the coupler terminal 2.
Is supplied with current, the movable core 16
Is attracted to the fixed core 15 and moves against the spring force of
When the current to the coil 12 is cut off, the movable core 16 moves in a direction away from the fixed core 15 by the spring force of the spring 17.

Here, the electromagnetic actuator with coupler according to the present invention has the following special features. A coupler housing 1D is formed on one side X of the coil bobbin 1 via a connection portion 1E, and a diode housing groove 1F and a diode terminal support groove 1J are formed on the upper flange 1B of the coil bobbin 1 excluding the coupler housing 1D and the connection portion 1E. Is a point.

According to the above description, the thickness T of the connecting portion 1E is not reduced by the diode housing groove 1F, especially since the diode housing groove 1F is not recessed in the connecting portion 1E. It can have a high bending strength. Therefore, the coil bobbin 1 is such that an external force is applied to the connecting portion 1E via the coupler housing 1D.
Of the coil 12 with respect to the cylindrical portion 1A, the connection of the terminals 13A and 13B of the diode 13 with the coupler terminal 2 and the connection of the coil 12, or the attachment and detachment of the power supply side coupler to and from the coupler terminal 2, and the transport of the coil bobbin 1. Even in such a case, it is not necessary to take special consideration for the damage of the connection portion 1E, thereby improving the working efficiency and greatly reducing the manufacturing cost.

The upper flange 1B, in which the diode housing groove 1F is recessed, has a reduced thickness in the upper part of the diode housing groove 1F.
Merely accommodates the diode 13 and does not receive any external force from outside and does not have any particular protrusion on the upper flange 1B.
Even if a thin portion is formed in the upper flange portion 1B where is formed, there is no problem that the flange portion is damaged.

Also, according to the fact that the diode housing groove 1F is formed in the flange portion 1B above the coil bobbin 1 excluding the coupler housing 1D and the connection portion 1E, the coupler housing 1D
The outer portion 1Da on one side X is connected to the diode housing groove 1.
This makes it possible to move closer to the center C of the coil bobbin 1 in accordance with the amount that the F can be eliminated. The degree could be raised. On the other hand, since the diode housing groove 1F can be formed in the planar projection of the upper flange portion 1B as can be understood from the description of FIG. 2, even if the diode housing groove 1F is moved as described above, this causes the diode housing groove 1F to move outward. There is no danger of increasing the size, and the above effect is not impaired.

In particular, the coupler housing 1D including the connecting portion 1E is formed on one side X from the line DD passing through the center C of the cross section of the coil bobbin 1, and the diode housing groove 1F is formed on the other side than the line DD. According to the formation on the side Y, the distance between the particularly large coupler housing 1D and the diode connection piece 2B and the coil connection piece 2C of the coupler terminal 2 can be increased. According to this, the joining operation between the terminals 13A and 13B of the diode 13 and the diode connection piece 2B of each coupler terminal 2 and the winding start and end lines of the coil 12 and the coil connection piece 2C of each coupler terminal 2 are performed. During the joining operation of the coupler housing 1D
The operation can be performed extremely easily without interfering with the operation, and an improvement in the operation efficiency can be achieved, whereby the manufacturing cost can be reduced. Further, according to the above, the length of the connection plate 2D of the coupler terminal 2 is inevitably formed to be longer, and according to this, the contact length between the upper flange 1B and the connection plate 2D is further increased. When the coil bobbin 1 is molded, the coupler terminal 2 can be more firmly fixed to the coil bobbin 1.

Furthermore, as shown in FIG. 2, the coupler housing 1D including the connecting portion 1E and the diode housing groove 1F are connected to a line D passing through the center C of the cross section of the coil bobbin 1.
That is, the coupler housing 1D including the connection portion 1E is disposed on one side X on a line ZZ orthogonal to the line DD passing through the center C, that is, the coupler housing 1D is disposed symmetrically opposite to each other with -D interposed therebetween.
According to the arrangement of the diode housing groove 1F on the other side Y on the line Z-Z, the coupler housing 1D and each coupler terminal 2
Can be most separated from the diode and coil connection pieces 2B and 2C, and the working efficiency can be further improved. Further, according to the above, the coupler housing 1D, the connecting portion 1E, the upper flange portion 1B, the diode terminal supporting groove 1H,
Since the diode housing groove 1F including J and the pair of coupler terminals 2 can be arranged symmetrically with the line ZZ interposed therebetween, the flow of the synthetic resin material in the mold during molding of the coil bobbin 1 can be improved. It can be performed uniformly, thereby greatly improving the formability of the coil bobbin 1.
A coil bobbin 1 having uniform dimensions and excellent quality can be provided.

According to the coupler terminal 2 of the present invention, most of the connection plate 2D is formed in the vertical direction, and the positioning plate 2E extends in the horizontal direction from a substantially intermediate portion of the connection plate 2D. Since the positioning hole 2F is formed, when the coupler terminal 2 is fixed to the coil bobbin 1 by molding, the coupler terminal 2 is accurately positioned and set in the mold by a mold or a pin for molding the coil bobbin 1, and the synthetic resin material is set. Can be molded. More specifically, the positioning plate 2E or the positioning hole 2F is positioned and supported by a pin from a direction S (shown in FIG. 1) orthogonal to the upper flange portion 1B, and accurate positioning of the coupler terminal 2 in the vertical direction is achieved. You can get the status. On the other hand, from the direction P (shown in FIG. 2) parallel to the upper flange 1B, the connection plate 2
By positioning and supporting the side Q of D, an accurate positioning state on the side of the coupler terminal 2 can be obtained. According to the above, since the coupler terminal 2 is simultaneously positioned and supported by the mold or the pin from different directions, when the coil bobbin 1 is molded, the position of the coupler terminal 2 set by the flow of the synthetic resin material to be melted is changed. The change is suppressed, so that the coupler terminal 2 can be molded and fixed at an accurate position. The above-described method for positioning the coupler terminal 2 uses a method in which the connection plate 2D has a long length (the terminal portion 2A and the connection piece portions 2B, 2B) as used in the present invention.
C is away) and the coil bobbin 1 has a coupler terminal 2
It is particularly suitable for accurately positioning and fixing the.

[0027]

As described above, according to the electromagnetic actuator with coupler according to the present invention, the coupler housing is provided on one side of the flange portion of the coil bobbin via the connecting portion, and the diode housing groove is excluded from the coupler housing and the connecting portion. Since the concave portion is provided in the flange portion, sufficient bending strength can be maintained at the connecting portion, so that special consideration for breakage of the connecting portion is not required, and the manufacturing cost of the coil bobbin can be greatly reduced. is there. In addition, since the coupler housing is not formed so as to protrude largely to one side, the diameter of the coil bobbin can be reduced, thereby increasing the degree of freedom in mounting on a device.

Further, the coupler housing including the connecting portion is connected to a line D.
Forming on one side X of -D and forming the diode housing groove on the other side Y of the line DD can improve the connection workability between the coupler terminal, the diode and the coil, and reduce the manufacturing cost. Can be achieved.

Further, by symmetrically arranging the coupler housing including the connecting portion and the diode housing groove so as to face each other with the line DD interposed therebetween, the above effect can be further improved and the moldability of the coil bobbin can be improved. It can greatly contribute to quality improvement.

Further, when the coupler terminal is fixed to the coil bobbin by molding, a connecting plate for connecting the terminal portion of the coupler terminal and the connecting piece is used by a mold and a pin for molding.
According to the positioning and fixing from different directions of the direction perpendicular to the upper surface of the flange portion and the direction parallel to the upper surface of the flange portion, the connection plate between the terminal portion and the connection piece portion used in the present invention is particularly The long coupler terminal can be accurately positioned and arranged on the coil bobbin.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an electromagnetic actuator with a coupler according to the present invention.

FIG. 2 is a transverse sectional view taken along line BB of FIG.

FIG. 3 is a perspective view of a pair of coupler terminals used in the electromagnetic actuator with a coupler of the present invention.

FIG. 4 is a longitudinal sectional view of a conventional electromagnetic actuator with a coupler.

FIG. 5 is a transverse sectional view taken along line AA of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Coil bobbin 1B Flange 1D Coupler housing 1E Connection 1F Diode accommodation groove 2 Coupler terminal 2A Terminal 2B Diode connection piece 2C Coil connection piece 2D Connection plate 13 Diode 13A, 13B Diode terminal DD Cross section of coil bobbin Line passing through center C

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-169527 (JP, A) JP-A-6-241340 (JP, A) JP-A-4-260306 (JP, A) 197301 (JP, U) Japanese Utility Model 3-13704 (JP, U) Japanese Utility Model 5-90913 (JP, U) Japanese Utility Model 56-119608 (JP, U)

Claims (2)

(57) [Claims] A pair of coupler terminals are formed from a top surface of a flange portion of a coil bobbin made of a synthetic resin material molded in advance.
Inserting the diode into the flange, fitting and connecting the terminal of the diode to the coupler terminal, and then covering the flange and the upper surface of the diode with a housing made of a magnetic material, the cylindrical actuator 1A and the flange above it Coil bobbin 1 having flange 1B and coupler housing 1D extending to one side X from flange 1B
And a connecting portion 1E connecting the coupler housing 1D and the flange portion 1B.
If, integrally molded by a synthetic resin material, with the diode housing groove 1F coupler terminals 2 are integrally formed on the flange portion 1B at the diode terminals supporting groove 1 J, IH is the In the upper surface 1G of the flange 1B With the cylindrical portion 1A at the center, the coupler housing 1D and the connecting portion 1E are formed in a concave shape by opening to the side opposite to the position where the connecting portion 1E is formed . Arrange the coupler housing 1D and the connection portion 1E,
Diode storage groove 1F, diode terminal support groove 1J, 1
H is disposed on the side of the side wall portion 14C of the housing 14. On the other hand, the diode connection piece 2B of the coupler terminal 2 and the coil connection piece 2C formed on the outside thereof are connected to the flange 1B.
Are disposed near the diode terminal support grooves 1J and 1H which are recessed in the terminal.
3A and 13B, and coil 1 is connected to coil connecting piece 2C.
2. An electromagnetic actuator with a coupler, wherein 2. When the pair of coupler terminals 2 are molded into a coil bobbin 1 made of a synthetic resin material, a terminal portion 2A of the coupler terminal 2 disposed in the coupler housing 1D, a terminal of the coil 12, and a diode 13 are provided. Terminal 1 of
The connection plate 2D between the coil connection piece 2C and the diode connection piece 2B to which the 3A and 13B are connected is connected to the direction S orthogonal to the upper surface 1G of the flange 1B and the direction P parallel to the upper surface 1G of the flange 1B. 2. The electromagnetic actuator with a coupler according to claim 1, wherein the positioning and the fixing are simultaneously performed by a molding die from different directions.