Drive-in bushing, motor vehicle structure and method and tool for producing the motor vehicle structure
AssigneeDr. Ing. h.c. F. Porsche Aktiengesellschaft
InventorsThiemo Erb, Markus Brunner, Marc Cachaj
Life of this patent
Estimating the term…
Abstract
A drive-in bushing (14) is provided for the releasable connection of a fiber-reinforced plastic first component of a motor vehicle structure to a fiber-reinforced plastic or metal second component of the motor vehicle structure. The drive-in bushing (14) has a sleeve-like basic body (15) manufactured from a metal and having an external wall (16) formed without a thread, and an internal wall (17) formed with an internal thread (18). The drive-in bushing (14) can be driven into a recess in the fiber-reinforced plastic of the first component (11). A screw penetrates a recess in the second component and can be screwed into the internal thread (18).
Claims11
A motor vehicle structure, comprising:
- a first component manufactured from a fiber-reinforced plastic and having at least one recess extending therethrough;
- a second component manufactured from fiber-reinforced plastic or metal and having an opening penetrating therethrough, the second component being positioned in surface-to surface contact with the first component so that the opening in the second component registers with the recess in the first component;
- at least one drive-in bushing having a sleeve-like basic body manufactured from metal and having an external surface formed without a thread, and an internal surface with an internal thread, the basic body being driven into the recess in the fiber-reinforced plastic of the first component;
- and at least one screw penetrating through the opening in the second component from a surface of the second component facing away from the first component and screwed into the internal thread of said drive-in bushing for releasably connecting the first and second components together.
A tool for producing a motor vehicle structure of that has a first component manufactured from a fiber-reinforced plastic and having at least one recess formed therein, a second component manufactured from fiber-reinforced plastic or metal and having an opening penetrating therethrough, at least one drive-in bushing having a sleeve-like basic body manufactured from metal and having an external wall formed without a thread, and an internal wall with an internal thread, the basic body being driven into the recess in the fiber-reinforced plastic of the first component, and at least one screw penetrating through the opening in the second component and screwed into the internal thread of said drive-in bushing for releasably connecting the first and second components together, the tool comprising:
- a basic body having a threaded section and a drive-in section, the threaded section being threadedly engageable with the internal thread on the internal wall of the drive-in bushing, and wherein the drive-in section is configured for receiving an impact for driving the drive-in bushing into the recess in the fiber-reinforced plastic of the first component.
A method for producing a motor vehicle structure, comprising the steps:
- providing a first component made from a fiber-reinforced plastic and having a recess extending therethrough;
- providing a second component made from a fiber-reinforced plastic or metal and having an opening extending therethrough;
- providing at least one drive-in bushing having a sleeve-like basic body manufactured from metal and having an external surface formed without a thread, and an internal surface with an internal thread;
- applying an adhesive to at least one of the recess in the first component and the external surface of the drive-in bushing, the adhesive having microcapsules that contain the adhesive and/or microcapsules that contain a hardener;
- driving the drive-in bushing into the recess in the fiber-reinforced plastic of the first component so that the microcapsules break and cause the adhesive to mix with the hardener for curing the adhesive and bonding the drive-in bushing in the recess;
- positioning the first and second components in surface-to-surface contact so that the opening in the second component registers with the recess in the first component;
- screwing the second component to the first component via at least one screw penetrating the recess in the second component, wherein the respective screw is screwed releasably into the internal thread of the drive-in bushing.
Dependencies are inferred from the claim text.