JP3397990B2 - Method of manufacturing handle for outside handle device for automobile - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handle device, and more particularly to a method for manufacturing a handle for an outside handle device for a vehicle, which can be formed with a small amount of deformation using a synthetic resin. 2. Description of the Related Art For example, as shown in Japanese Utility Model Laid-Open Publication No. 58-55150, an outside handle mechanism of an automobile door in which a synthetic resin outside handle is rotatably mounted on a metal bracket. Is known. FIG.
As shown in FIG. 12, in this outside handle mechanism, the projecting pin 3 formed on one arm 2 of the outside handle 1 is inserted into one hole 7 formed on the bent piece 6 of the bracket 5 and A spring 12 is fitted on a metal pin 13, a through hole 9 formed in the other arm 8 of the outside handle 1, and a bent piece 1 of the bracket 5.
A metal pin 13 is inserted into the other hole 11 formed at 0, and the outside handle 1 is pivotally attached to the bracket 5 so as to be freely rotatable. Bracket 5 is a pair of stud bolts 1
4 secures the door panel (not shown) of the vehicle. One arm 2 and the other arm 8 of the outside handle 1 are connected to the handle 20 of the outside handle 1.
A protruding portion 21 protruding from the back surface 20a of the protruding portion 20 and connected to the handle portion 20; an intermediate portion 22 connected to the protruding portion 21 in a bent state; It has. In order to prevent the arms 2 and 8 from coming into contact with the door panel when the outside handle 1 is operated, a U-shaped notch is formed by the lead-out portion 21, the intermediate portion 22, and the connecting portion 23 of the arms 2 and 8. 24 are formed. The connecting portion 23 of the other arm 8 has a bent portion 2 of a rod 25 that is operatively connected to a door lock device of an automobile.
A connection hole 26 into which 5a is mounted is formed. One end 12a of the spring 12 is locked to the neck 23a of the connecting portion 23, and the other end 12b of the spring 12 is locked to the ear 5a of the bracket 5. When manufacturing the outside handle 1 by resin molding, a molding die used includes a lower die that is a fixed die, an upper die that is a movable die, and a slide die that forms the arms 2 and 8. The lower mold has a cavity forming the front part of the outside handle 1, and the upper mold has a cavity forming the rear part of the outside handle 1 (FIG. 4). Since the U-shaped notch 24 is an under part, it is not formed by a lower die, and a slide die 30 is used for the arm 2 as shown in FIG. Although not shown, the arm 8 is formed using the same slide mold as the arm 2. The slide mold 30 has a projection 30a that forms a cavity for forming the notch 24. Therefore, the outside handle 1 is formed with the slide mold 30 abutting on all side surfaces of the arms 2 and 8 and the projection 30a fitted into the notch 24 at the same time. In the conventional outside handle mechanism, the slide mold 30 is moved outward with respect to the arms 2 and 8 before the upper mold is released from the lower mold. When the mold is released, the slide mold 30 is
At the same time that the projection 30a is in contact with all side surfaces of the
4, the arms 2, 8 with which the slide die 30 abuts may fall down and move in a state where the arms 2, 8 are warped. Was. In this case, when attaching the outside handle 1 to the bracket 5, a problem occurs that the outside handle 1 cannot be attached to the bracket 5 due to deformation of the arms 2 and 8. In order to prevent the deformation of the arms 2 and 8, the protrusions (not shown) of the upper die are fitted into the concave portions 27 and 28 formed on the back surfaces of the arms 2 and 8 until the slide die 30 is completely released. It has been proposed to prevent the arms 2 and 8 from warping. In this method, there is a certain distance from the concave portions 27 and 28 to the respective connection portions 23 of the arms 2 and 8, and the concave portions 27 and 28
Since the arm 8 cannot be formed deeply, the deformation of the arms 2 and 8 cannot be sufficiently prevented when the slide mold 30 is released. That is, when operating the outside handle mechanism,
Since the outside handle 1 is turned around the pin 13 against the elasticity of the spring 12 by putting a hand on the handle portion 20 to operate the door lock device via the rod 25, the arms 2, 8 Stress such as tensile force and compressive force is generated. Therefore, the arms 2, 8 must have mechanical strength to withstand the stress, so that the deep recess 27,
When 28 is formed, the mechanical strength decreases. The present invention
An object of the present invention is to provide a method for manufacturing a handle for an outside handle device for a vehicle, which can prevent the warpage of the arm portion without lowering the mechanical strength of the arm portion. [0004] A method of manufacturing a handle for an outside handle device for a vehicle according to the present invention comprises a handle (60) and a handle (60) formed of a synthetic resin.
A pair of arms (61, 62) protruding from the back surface (60a) of the arm, each of the pair of arms (61, 62) has a bent portion (63) connected to the handle portion (60), and a bent portion. An intermediate part (64) connected to the lead-out part (63) in a state of being connected, and a connecting part (65) formed at a tip of the intermediate part (64), and a lead-out part of each arm part (61, 62). (6
3), an intermediate portion (64), and a notch (66) formed in a U-shape by the connecting portion (65) include an under region (67) that cannot be formed by the fixed die (91), and an arm portion. The connecting portion (65) of the (62) has a through hole (68) in which the shaft (56) is mounted, and a rod (81) formed on the opposite side to the through hole (68) and operatively connected to the door lock device. ) Having a connection hole (82) to which the end of the handle (55) is connected, the cavity surface (9) forming the front part of the handle (55).
3) and fixing having a holding projection (94) formed at a position corresponding to the end of the connecting portion (65) between the through hole (68) of the arm portion (61, 62) and the connecting hole (82). A movable die (92) having a cavity surface (93) forming a rear portion of a mold (91), a handle (55), and a cavity surface (93) forming side surfaces of arm portions (61, 62) of the handle (55). A) forming a cavity (95) corresponding to the shape of the handle (55) with a molding die (96) including a slide die (90) having a mold, and pressing and cooling the molten resin into the cavity (95). Hand portion (60), a pair of arm portions (61, 62), a concave portion (69) formed in the arm portion (61, 62), and an arm portion (61, 6).
2) A partition for separating the recess (69) from the inner surface (61a, 62a)
Forming a handle (55) having (61b, 62b) in the cavity (95), and an arm (61, 62) in the cavity (95).
A step of releasing the slide die (90) in a state where the deformation of the slide die (90) is prevented by the holding projections (94) of the fixed die (91), and releasing the movable die (92) after releasing the slide die (90). Process and cavity
(95) removing the handle (55) formed therein from the fixed mold (91). When releasing the slide die (90) of the molding die (96) for manufacturing the handle (55), the holding projection (94) of the fixed die (91) is released.
Engages with the concave portion (69) of the connecting portion (65) of the arm portion (61, 62), so that the warpage of the arm portion (61, 62) can be reliably prevented. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method of manufacturing a handle for an outside handle device for a vehicle according to the present invention will be described below with reference to FIGS. The outside handle device 50 for an automobile is formed of an escutcheon 54 made of zinc die-cast or synthetic resin and serving as a bracket.
A handle 55 formed of a synthetic resin; a shaft 56 rotatably attaching the handle 55 to the escutcheon 54; a handle 55 wound around the shaft 56;
And a spring 57 for urging the door to the closed position.
The escutcheon 54 is fixed to the vehicle door panel 51 via a pair of stud bolts 70 (FIG. 2) through an end cover 71 (FIGS. 6 and 7). The handle 55 includes a handle portion 60 and a pair of arm portions 61 and 62 protruding from the back surface 60a of the handle portion 60 and disposed through the opening portion 54a of the escutcheon 54. Each of the pair of arm portions 61 and 62 is , A leading portion 63 connected to the handle portion 60, an intermediate portion 64 connected to the leading portion 63 in a bent state, and a connecting portion 65 formed at the tip of the intermediate portion 64. A lead-out part 63 of each arm part 61, 62;
A U-shaped notch 66 is formed by the intermediate portion 64 and the connecting portion 65.
Are formed, and the notch 66 is fixed (lower) 91 (FIG. 4).
And an under region 67 that cannot be formed by the method. In the embodiment of the present invention, as shown in FIGS.
Is formed wider than the intermediate portion 64, and the through hole 68 is disposed outside the intermediate portion 64 on the door panel 51 side. A shaft 56 is attached to a through hole 68 formed in a connecting portion 65 of each of the arm portions 61 and 62 and a through hole 68 formed in each of a pair of support arm portions 52 and 53 projecting from the back surface of the escutcheon 54. Handle 55 is escutcheon 54
It is mounted rotatably with respect to. As shown in FIG. 4, a hook portion 80 is formed in the connecting portion 65 of the one arm portion 61 on the side opposite to the through hole 68, and one end 57 a of a spring 57 wound around the shaft 56 is connected to the hook portion 80. The other end 57b of the spring 57 is locked with the escutcheon 54.
Is locked. As shown in FIG. 5, a connecting hole 82 is formed in a connecting portion 65 of the other arm portion 62 on a side opposite to the through hole 68, and the connecting hole 82 is connected to a rod 81 operatively connected to a door lock device. The ends of FIG. 2 are connected. A drainage hole 64 a for the plating solution is formed in the intermediate portion 64. A concave portion 61 is provided on the back surface of each of the arm portions 61 and 62.
c and 62c are formed, and the projections (not shown) of the movable die (upper die) 92 are fitted into the concave portions 61c and 62c during molding. In addition, a concave portion 69 is formed above the through hole 68 of each connecting portion 65 of each of the arm portions 61 and 62. As shown in FIG. 3, the recess 69 of the arm 61 is
A partition 61b is formed to be separated from a. Similarly,
The concave portion 69 of the arm portion 62 is
The partition 62b is formed so as to be separated therefrom. In the above configuration, when the handle 60 of the handle 55 is manually pulled toward the user against the elasticity of the spring 57, as shown in FIGS.
5 is rotated, the rod 81 is moved downward via the arm portion 62, and the door lock device is operated. When manufacturing a handle for an outside handle device for a vehicle, a holding portion formed at a position corresponding to a cavity surface 93 forming a front portion of the handle 55 and an end of a connecting portion 65 of the arms 61 and 62. A fixed mold 91 having a projection 94, a movable mold 92 having a cavity surface 93 forming a rear portion of the handle 55, and a slide mold 90 having a cavity surface 93 forming side surfaces of the arm portions 61 and 62 of the handle 55 (FIG. 8). ) Is prepared. Next, the cavity 9 corresponding to the shape of the handle 55
5 is formed in a mold 96, and molten resin is press-fitted into the cavity 95 and cooled. Then, the holding projection 9 of the fixed die 91
The slide die 90 is released in a state in which the deformation of the arm portions 61 and 62 is prevented by 4. Since the holding projection 94 of the fixed mold 91 is engaged with the concave portion 69 of the connecting section 65 of the arm section 61, 62, the arm section 61, 62 is released when the slide mold 90 is released.
Warpage can be reliably prevented by the partition portions 61b and 62b. After releasing the slide mold 90, the movable mold 92
, And then, the formed handle 55 is fixed to the fixed mold 9.
Remove from 1. Thereafter, the handle 55 is attached to the escutcheon 54 to manufacture an outside handle device for an automobile. The functions and effects of this embodiment are as follows. [1] At the time of manufacturing the handle 55, the holding projections of the fixed mold 91 are provided at the ends of the arms 61 and 62,
Since the engagement with the concave portion 69 of the connecting portion 65 of 62 is performed, the warpage of the arm portions 61 and 62 can be reliably prevented when the slide die 90 is released. [2] Since the tensile force applied to the concave portion 69 is small, the mechanical strength of the arm portions 61 and 62 is not impaired. [3] The handle 55 can be reduced in weight. [4] The resin material required for manufacturing the handle 55 can be reduced. As described above, according to the present invention, the warpage of the arm portion can be reliably prevented when the slide die is released, so that the assembly of the handle for the automotive outside handle device is facilitated. The outside handle device for a vehicle can be operated smoothly.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a vehicle outside handle device provided with a handle for a vehicle outside handle device manufactured according to the present invention; FIG. 2 is a rear view of FIG. 1; FIG. 4 is a front view of a handle for an outside handle device for an automobile manufactured according to the present invention. FIG. 4 is a cross-sectional view of a handle showing a connection portion of one arm in a cross section. FIG. 5 is a cross section of a connection portion of the other arm. FIG. 6 is a cross-sectional view showing the state of one arm when the handle is operated. FIG. 7 is a cross-sectional view showing the state of the other arm when the handle is operated. FIG. FIG. 9 is a perspective view showing a state when the mold is released. FIG. 9 is a cross-sectional view of a molding die when manufacturing a handle. FIG. 10 is a front view showing an arrangement of a fixed die and a slide die when manufacturing a handle. ] Conventional Rear view of the automotive door outside handle mechanism 12] [Description of symbols] exploded perspective view of a conventional automotive door outside handle mechanism 50 ... automobile outside handle device 55,
・ Handle, 56 ・ ・ Shaft, 60 ・ ・ Hand part, 61, 62 ・ ・ Arm part, 61a, 62a ・ ・
Inner surface, 61b, 61b ... partition wall part, 63 ... lead-out part, 64 ... middle part, 65 ... connecting part, 66 ...
Notch, 68, through hole, 69, recess, 80
・ Hook, 81 ・ ・ Rod, 82 ・ ・ Connection hole,
90 · · · slide type, 91 · · · fixed type, 92 · · · movable type, 93 · · · cavity surface, 94 · · · holding protrusion,
95 · · cavity, 96 · · · mold,

Continuation of the front page (72) Inventor Yoshiaki Sakamoto 1-6-8 Fukuura, Kanazawa-ku, Yokohama-shi, Kanagawa Prefecture Alfa Inc. (72) Inventor Hiroshi Matsumoto 1-6-8 Fukuura, Kanazawa-ku, Yokohama-shi, Kanagawa Co., Ltd. Within Alpha (56) References JP-A-5-177680 (JP, A) JP-A-6-312636 (JP, A) JP-A-58-156964 (JP, U) JP-A-1-163661 (JP, U) ) Actually open 7-40936 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E05B 1/00 301 B21D 53/86 B60J 5/04

Claims (1)

(57) [Claim 1] A handle formed of a synthetic resin and a pair of arms protruding from a back surface of the handle are provided, and each of the pair of arms is connected to the handle. A leading portion of the arm portion, a middle portion connected to the leading portion in a bent state, and a connecting portion formed at the tip of the middle portion. The notch formed in the shape of a letter includes an under region that cannot be formed with a fixed type,
The connecting part of the arm part has a through hole where the shaft is mounted,
A connecting hole formed on the side opposite to the through hole and connected to an end of a rod operatively connected to the door lock device, wherein the front portion of the handle is formed. A fixed mold having a holding surface formed at a position corresponding to the end of the connecting portion between the cavity surface and the through hole of the arm portion and the connecting hole, and a movable mold having a cavity surface forming a rear portion of the handle. Forming a cavity corresponding to the shape of the handle by using a mold including a slide mold having a cavity surface forming a side surface of an arm portion of the handle; ,
Forming, in the cavity, a handle having a pair of arms, a recess formed in the arm, and a partition for separating the recess from the inner side surface of the arm; and holding the arm in the cavity in a fixed manner. A step of releasing the slide die in a state where the slide die is blocked by the projection; a step of releasing the movable die after releasing the slide die; and a step of removing the handle formed in the cavity from the fixed die. A method for manufacturing a handle for an outside handle device for a vehicle, comprising: