Storage box with inertia lock device
By designing an inertia lock device, including an inertia lock base, a locking tongue, and a return spring, the problem of secondary injury caused by the inertial rotation of the storage box during a side collision is solved, achieving the effect of effectively protecting passenger safety during a side collision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DONGFENG FAURECIA AUTOMOTIVE INTERIOR CO LTD
- Filing Date
- 2026-02-02
- Publication Date
- 2026-04-17
AI Technical Summary
Existing car storage compartments are prone to opening due to inertia during high-speed side collisions, causing injury to passengers. There is a lack of effective inertia locking devices to prevent such secondary injuries.
An inertial lock device is designed, including an inertial lock base and a lock tongue, which are fixed to the storage box body by an inertial lock pivot. It is equipped with an inertial lock spring and a return spring, combined with gear damping, to ensure easy opening during normal use and to prevent the storage box from opening in the event of a side impact.
The storage compartment is easy to open during normal use, but it is effectively prevented from opening in the event of a side impact, protecting passenger safety and avoiding secondary injuries caused by inertial rotation.
Smart Images
Figure CN121875552A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a storage box for automotive interiors, specifically a storage box with an inertial locking device. Background Technology
[0002] Storage compartments in car interiors are standard components. With advancements in automotive technology and manufacturing, vehicle speeds are constantly increasing, leading to more frequent and severe side-impact collisions. In high-speed side-impact collisions, it's crucial to prevent these storage compartments from opening due to high inertia and causing injury to passengers. Therefore, the storage compartments need to open with minimal force under normal use, and in the event of a severe side impact, their inertia-locking mechanism should effectively prevent them from opening and causing secondary injuries to occupants. After the impact, the inertia lock should return to its initial state, allowing the storage compartment to open normally. Currently, no such storage compartment exists; therefore, inventing one with an inertia-locking device would be highly beneficial. Summary of the Invention
[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a storage box with an inertial locking device, which can effectively prevent secondary injuries to vehicle occupants caused by the storage box opening due to a vehicle collision.
[0004] To solve the above-mentioned technical problems, the solution adopted by the present invention is as follows: it includes a storage box body (3), a storage box outer panel (2), and a door handle (1). The storage box outer panel (2) is connected to the storage box body (3) through a rotating shaft (5). The storage box body (3) and the door handle (1) are fixed by screws. A return spring (4) is installed on the storage box body (3). The storage box is characterized by having an inertial lock device, wherein the inertial lock device includes an inertial... The lock base (6) and the inertial lock tongue (7) are mounted on the inertial lock base (6) via the inertial lock pivot (9) for rotation. An inertial lock spring (8) is installed at the inertial lock pivot (9) for the inertial lock tongue to rebound. One end of the return spring (4) is fixed in the positioning hole (a) of the storage box body (3) and can rotate in the positioning hole (a); the other end is fixed in the hole (b) on the outer plate (2) of the storage box and can rotate in the hole.
[0005] A preferred solution of the present invention is that the inertial lock base (6) and the storage box body (3) are fixed together by screws. A gear damping (11) and a return spring (4) are installed at the connection between the outer plate (2) of the storage box and the storage box body (3). A counterweight (10) is fixed to the inertial lock tongue (7) by snap-fit.
[0006] The beneficial effects of this invention are: the storage box of this invention can be opened with relatively little force under normal use; in the event of a severe side impact, the inertia locking mechanism can effectively prevent the storage box from opening and causing secondary injuries to occupants. When a car experiences a high-speed side impact, it is necessary to ensure that the side storage box will not open due to high inertia rotation, causing injury to passengers. This ensures passenger safety. Attached Figure Description
[0007] Figure 1 This is a schematic diagram of the external structure of the present invention. Figure 2 This is a schematic diagram of the internal structure of the present invention. Figure 3 This is a schematic diagram of the internal planar structure of the present invention. Figure 4 This is a schematic diagram of the inertial lock device of the present invention. Figure 5 for Figure 3 A-A direction closed state structure diagram Figure 6 for Figure 3 A-A to critical state structure diagram Figure 7 for Figure 3 A--A direction open state structure diagram Figure 8 for Figure 3 A--A-direction abnormal collision enabled state structure diagram Figure 9 for Figure 3 Schematic diagram of the pre-collision state structure of B--B direction Figure 10 for Figure 3 Schematic diagram of the B-B collision lock-up state structure Figure 11 This is a schematic diagram of the structure of the reset spring of the present invention. Specific Implementation Cases The present invention will be further described below with reference to the accompanying drawings: like Figure 1 , Figure 2 , Figure 4As shown, the present invention includes a storage box body (3), a storage box outer panel (2), and a door handle (1). The storage box outer panel (2) is connected to the storage box body (3) via a rotating shaft (5). The storage box body (3) and the door handle (1) are fixed together by screws. A return spring (4) is installed on the storage box body (3). The storage box is equipped with an inertial lock device. The inertial lock device includes an inertial lock base (6) and an inertial lock tongue (7). The inertial lock tongue (7) is mounted on the inertial lock base (6) via an inertial lock rotating shaft (9) for rotation. An inertial lock spring (8) is installed at the inertial lock rotating shaft (9) for the inertial lock tongue to rebound. Figure 5-8 As shown, one end of the return spring (4) is fixed in the positioning hole (a) of the storage box body (3) and can rotate in the positioning hole (a); the other end is fixed in the hole (b) on the outer plate (2) of the storage box and can rotate in the hole. The inertial lock base (6) is fixed to the storage box body (3) by screws. The connection between the outer plate (2) of the storage box and the storage box body (3) is equipped with a gear damper (11) and a return spring (4). A counterweight (10) is fixed to the inertial lock tongue (7) by snap-fit.
[0008] The working status of this invention is described as follows: Storage box closed: When the storage box is closed, the return spring is compressed, providing a reverse thrust so that the outer panel (2) of the storage box presses against the stop block (12) of the outer panel of the storage box. Turn on the power button to close the storage box. See the diagram (A-A closed state). Storage box open status: When the storage box is subjected to an external opening force, the outer panel (2) of the storage box rotates along the rotation axis (5). One end of the return spring rotates in the positioning hole (a) without displacement; the other end rotates in the positioning hole (b) and rotates together with the outer panel (2) of the storage box. When the outer panel (2) of the storage box moves to a critical point (as shown in Figure AA (critical state), that is, when points a, c and the rotation axis (5) are collinear), the return spring provides a reverse opening force, and the storage box cover opens.
[0009] As shown in the figure (A-A in the open state) Storage box side-impact lock state When a collision occurs, the counterweight (10) of the inertial lock is subjected to the instantaneous collision inertial force (Fg1), causing the inertial lock tongue (7) to move along the inertial lock rotation axis (9). At the same time, the outer panel (2) of the storage box rotates along the rotation axis (5) when it collides. The inertial lock tongue (7) stops moving after a certain angle due to the influence of the limiting structure. The movement of the outer panel (2) of the storage box stops after contacting the inertial lock tongue (7). After the instantaneous collision inertial force (Fg1) ends, the inertial lock tongue (7) returns to its original state under the action of the inertial lock spring (8), and the outer panel (2) of the storage box returns to the closed state under the action of the spring force.
[0010] like Figure 9 This is the state before the collision. Figure 10 It is in a collision-locked state.
Claims
1. A storage box with an inertial locking device, comprising a storage box body (3), a storage box outer panel (2), and a door handle (1), wherein the storage box outer panel (2) is connected to the storage box body (3) via a rotating shaft (5), the storage box body (3) is fixed to the door handle (1) by screws, and a return spring (4) is mounted on the storage box body (3), characterized in that: The storage box is equipped with an inertial lock device, which includes an inertial lock base (6) and an inertial lock tongue (7). The inertial lock tongue (7) is mounted on the inertial lock base (6) via an inertial lock shaft (9) for rotation. An inertial lock spring (8) is installed at the inertial lock shaft (9) for the inertial lock tongue to rebound. One end of the return spring (4) is fixed in the positioning hole (a) of the storage box body (3) and can rotate in the positioning hole (a); the other end is fixed in the hole (b) on the outer plate (2) of the storage box and can rotate in the hole.
2. A storage box with an inertial locking device according to claim 1, characterized in that: The inertial lock base (6) and the storage box body (3) are fixed together by screws.
3. The cartridge of claim 1 wherein: The storage box outer panel (2) is equipped with a gear damping (11) and a return spring (4) at the connection between the storage box body (3).
4. The cartridge of claim 1 wherein: The inertial lock tongue (7) is fixed with a counterweight (10) by snap-fit.