JPH0721334U - Symbol display - Google Patents

Abstract

(57) [Abstract] [Purpose] By forming a character-shaped energy director portion on either one of a transparent resin member and an opaque resin member and performing ultrasonic welding, reliable welding and material display can be obtained. [Structure] A material display for a vehicle exterior resin member. An energy director portion 9 and a character-shaped energy director type symbol 11 are formed on a glass (transparent resin member) 6.
The glass 6 and the visor (opaque resin member) 7 are ultrasonically welded.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a method of forming an energy director portion and performing ultrasonic welding, and particularly to a material display of a resin member.

[0002]

[Prior art]

 In today's world where environmental protection and recycling of resources are being questioned, it is becoming mandatory to display the material name on resin parts. Therefore, as shown in FIG. 4, a main body 1, a light guide 2 for guiding light from an illumination member (not shown), a dial 3 on which scales, numbers and the like are printed, running speed, engine speed, etc. An upper case composed of a lens 6 made of a PMMA transparent resin material and a black visor 7 made of an ABS resin material for preventing external light from entering in order to favorably visually recognize the instrument unit 5 composed of The material display of the vehicle exterior resin component having the items 8 and 8 will be described.

Conventionally, the lens 6 is outside the display area of the vehicle instrument and has the joint surfaces 6a and 6b with the visor 7, and the energy director portion 9 for ultrasonic welding is formed on the joint surfaces 6a and 6b. The joining surfaces 7a and 7b formed on the visor 7 are joined by ultrasonic welding. As shown in FIG. 5, both material names are outside the visor 7 near the joining surfaces 6a and 7a between the lens 6 and the visor 7. It was displayed by forming a convex character 10 as shown in FIG. 6 on the side upper surface.

As another material display, as shown in FIG. 7, an energy director portion 9 is provided outside the display area of the vehicle instrument and on the front side of the lens 6 on the joint surfaces 6b and 7b between the lens 6 and the visor 7. The material name of the lens 6 is formed by the convex character 10 shown in FIG. 6 so as to be separated, and the material indications of the lens 6 and the visor 7 are provided at different places.

[0005]

[Problems to be solved by the device]

 However, in the former case, it is necessary to display not only the material for the visor 7 but also the material for the lens 6 on the mold of the visor 7, and there is a problem that it takes time to process the mold. In order to ultrasonically weld the visor 7 and the visor 7, a welding horn (a jig for ultrasonic welding) must be pressed from the surface side of the lens 6 at the location where the energy director portion 9 is formed. There is a problem that the material cannot be displayed in a narrow space where the horn hits the convex character 10, and if the welding horn is applied so that the convex character 10 escapes, ultrasonic welding will be performed. However, the welding of the lens 6 and the visor 7 could not be sufficiently obtained, and when mounted on a vehicle, there was a problem of causing abnormal noise.

[0006]

[Means for Solving the Problems]

 The present invention focuses on the above-mentioned problems, in which an energy director type symbol is formed on either one of the transparent resin member and the opaque resin member that are ultrasonically welded at the opposing bonding surfaces. Is.

[0007]

[Action]

 By forming a character-shaped energy director portion on either one of the transparent resin member and the opaque resin member and ultrasonically welding it, reliable welding and material display are possible.

[0008]

【Example】

 Hereinafter, the present invention will be described based on the embodiments shown in FIGS. 1 to 3, but the same or corresponding parts in the conventional example will be designated by the same reference numerals and detailed description thereof will be omitted.

The lens (transparent resin member) 6 and the visor (opaque resin member) 7 are outside the display area of the vehicle instrument and have respective bonding surfaces 6a, 6b, 7a, 7b for ultrasonic welding, An energy director portion 9 is formed on the joint surfaces 6a and 6b of the lens 6, and a character-shaped energy director type symbol 11 is formed on a part of the joint surface 6b of the lens 6. The material of the visor 7 is displayed on the outer upper surface of the visor 7 in the vicinity of the joint surfaces 6a, 7a between the lens 6 and the visor 7, and only the material of the visor 7 is displayed by a convex character 10 as shown in FIG. is doing.

With this configuration, by welding the lens 6 and the visor 2 by ultrasonic welding, the energy director portion 9 and the energy director type symbol 11 formed on the lens 6 are deformed by the pressing force applied together with the ultrasonic vibration. Then, the contact surfaces 6a, 6b, 7a, 7b of the lens 6 and the visor 7 are welded in a state of being in close contact with each other.

Since the energy director type symbol 11 ultrasonically welded has the visor 7 made of a black resin material, the welded portion of the energy director type symbol 11 of the lens 6 can be seen as black. is there.

Therefore, by forming the energy director type symbol 11 on a part of the joint surface 6b of the lens 6, the material of the lens 6 can be displayed and reliable welding can be performed.

Although the energy director type symbol 11 is formed on the lens 6, the energy director type symbol 11 is formed on the visor 7 to obtain the same material display and welding even if ultrasonic welding is performed. .

Further, in the present embodiment, the material indication is formed by the energy director type symbol 11, but it is not limited to the material indication, and it goes without saying that an identification number or the like may be formed.

[0015]

[Effect of device]

 According to the present invention, an energy director type symbol is formed on either one of the transparent resin member and the opaque resin member which are ultrasonically welded to each other on the opposing joint surfaces, and the energy director symbol is formed. This not only makes it possible to display materials that are not bound to the space but also to perform reliable welding, and since it is not necessary to consider where to apply the welding horn, the ultrasonic welding machine side The jig design is also simple and contributes to the reduction of equipment costs.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of an embodiment showing the present invention.

FIG. 2 is a plan view of glass of the above-mentioned embodiment.

FIG. 3 is a plan view of the back surface of the glass of the above embodiment.

FIG. 4 is a sectional view of a main part showing a conventional example.

FIG. 5 is a perspective view of the above conventional example.

FIG. 6 is a perspective view of the above conventional example.

FIG. 7 is a plan view of a conventional glass example.

[Explanation of symbols]

 6 Glass 6a, 6b Joining surface 7 Visor 7a, 7b Joining surface 8 Upper case 9 Energy director part 10 Convex character 11 Energy director type symbol

Claims (1)

[Scope of utility model registration request] 1. A symbol display characterized in that an energy director type symbol is formed on one of the joining surfaces of a transparent resin member and an opaque resin member, which are ultrasonically welded to each other on opposite joining surfaces.