Jointing member

• US 20040175250A1
• Filed: 03/02/2004
• Published: 09/09/2004
• Est. Priority Date: 03/03/2003
• Status: Active Grant

• Current Assignee: Piolax Incorporated
• Original Assignee: Piolax Incorporated
• Inventors: Yoneoka, Akira
• Granted Patent: US 7,249,922 B2
• Time in Patent Office: Days
• US Class Current: 411/45
• CPC Class Codes: F16B 19/1081 fastened by a drive-pin F16B19/109 takes precedence

Abstract

A jointing member has a grommet and a pin. The grommet includes a flange portion and a leg portion capable of being opened, in which an insertion hole is formed from the center of the flange portion to the inner portion of the leg portion, and an engagement nail is formed at the inner surface of the leg portion. The pin includes a head portion and a shaft portion to be inserted into the insertion hole, in which an engagement surface and a lock surface each engaging with the engagement nails are formed at the shaft portion. In the jointed and fixed state of panel members, when an unexpected external force is applied to the tip end of the shaft portion of the pin, the engagement nail engages with the lock surface of the pin.

Claims

1. A jointing member comprising:

a grommet and a pin,

wherein the grommet includes a flange portion and a leg portion capable of being opened, in which an insertion hole is formed from a center of the flange portion to an inner portion of the leg portion, and an engagement nail is formed at an inner surface of the leg portion, and

the pin includes a head portion and a shaft portion to be inserted into the insertion hole, in which an engagement surface and a lock surface each engaging with the engagement nails are formed at the shaft portion.

2. The jointing member according to claim 1, wherein in a state where the engagement nail formed at the leg portion of the grommet engages with the engagement surface formed at the shaft portion of the pin, the pin is movable in its drawing out direction within the insertion hole of the grommet.

3. The jointing member according to claim 1, wherein the engagement nail formed at the leg portion of the grommet engages with the lock surface formed at the leg portion of the shaft portion as the engagement nail moves along the lock surface while maintaining the opened state of the leg portion of the grommet.

4. The jointing member according to claim 2, wherein the engagement nail formed at the leg portion of the grommet engages with the lock surface formed at the leg portion of the shaft portion as the engagement nail moves along the lock surface while maintaining the opened state of the leg portion of the grommet.

5. The jointing member according to claim 1, wherein in a state where the engagement nail formed at the leg portion of the grommet engages with the engagement surface formed at the shaft portion of the pin, a tip end of the shaft portion of the pin is buried within the insertion hole of the grommet.

6. The jointing member according to claim 2, wherein in a state where the engagement nail formed at the leg portion of the grommet engages with the engagement surface formed at the shaft portion of the pin, a tip end of the shaft portion of the pin is buried within the insertion hole of the grommet.

7. The jointing member according to claim 3, wherein in a state where the engagement nail formed at the leg portion of the grommet engages with the engagement surface formed at the shaft portion of the pin, a tip end of the shaft portion of the pin is buried within the insertion hole of the grommet.

8. The jointing member according to claim 4, wherein in a state where the engagement nail formed at the leg portion of the grommet engages with the engagement surface formed at the shaft portion of the pin, a tip end of the shaft portion of the pin is buried within the insertion hole of the grommet.

9. A jointing member comprising:

a grommet and a pin,

wherein the grommet includes a flange portion and a leg portion capable of being opened, in which an insertion hole is formed from a center of the flange portion to an inner portion of the leg portion, and an engagement nail is formed at an inner surface of the leg portion,

the pin includes a head portion and a shaft portion to be inserted into the insertion hole, in which an engagement surface and a lock surface each engaging with the engagement nails are formed at the shaft portion,

the flange portion of the grommet has a large-diameter portion of the insertion hole, an engagement hole in a position where a bottom portion of the large-diameter portion is adjacent, and an extending portion which is extended to form a pin hole portion whose diameter is small than that of the large-diameter portion in a free state on a side of a tip where is far from the flange portion,

the shaft portion has an engagement surface which holds the engagement nail displaced to a circumference direction to keep the flange portion of the grommet in an opened state, in a state that the pin is incorporated into the grommet, in parallel with a center line of the shaft portion and in a direction of the center line of the shaft portion for a predetermined length, and has a lock surface which protrude in a circumference direction in a tip of the shaft portion so as to prevent the engagement nail from falling away from the engagement surface to shift to a state that a diameter of the leg portion become small, and

the engagement nail of the grommet, and the engagement surface of the pin and lock surface are relatively provided in a shaft direction at a position where the grommet and the pin enable to slide for a predetermined distance in a state that the grommet and the pin are incorporated to be the leg portion opened.

10. The jointing member according to claim 9, wherein the tip of the shaft portion of the pin, which is provided with the lock surface, is surrounded with the extending portion of each of leg portions of the grommet in a state that the grommet and the pin are incorporated to be the leg portions opened, and is inside the tip hole portion of the grommet.

11. The jointing member according to claim 9, wherein the predetermined distance that the grommet and the pin enable to slide is 0.5 mm to 2 mm.