JPS5846199Y2 - Automotive door check - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a door check for an automobile, which is capable of smoothly opening and closing a door and capable of maintaining the open state of the door at any position.

A slider of an elastic holding member provided inside the door end is slidably displaced on a lever whose base end is horizontally pivoted inside the body pillar in accordance with the opening/closing operation of the door. There is a door check for automobiles that maintains the opening of the door.

Conventionally, in this type of automobile door check, as shown in FIG. Elevated parts E and E consisting of c and c' and horizontal pieces were provided in a vertically symmetrical manner.

Therefore, when opening the door, the sliders F and F are connected to the plate B,
When sliders F and F cross the corners G and G between the diagonal piece C and the horizontal piece on the pivot side of lever A by sliding on the surface of B, as shown by H in the opening of Figure 1. After passing corners G and G, the operating force becomes extremely small, and sliders F and F become horizontally separated due to inertia, passing through part D and completely The door may end up in an open state, making it difficult to achieve an intermediate open state.

Also, when closing the door, sliders F and F suddenly slide on the diagonal piece C9C surface on the pivot side of lever A, as shown by ■ in the opening of Figure 1, and the door cannot be closed intermediately. However, with a small amount of force, the door will remain completely closed.
There were drawbacks such as the risk of fingers getting caught on the free end side of the door.

This invention was made to eliminate the drawbacks mentioned above.
Hereinafter, explanation will be given based on embodiment figures.

The base end of a lever 2 of the required length, which is made up of two upper and lower plate pieces 1 and 1', is attached to a bracket 4 provided inside a body pillar 3.
It is pivoted via an axis pin 5 so that it can swing horizontally.

On the intermediate surface of the plate pieces 1 and 1' of the lever 2, there are diagonal pieces 6 at both ends.
6' and a raised portion 8,8' consisting of a horizontal piece 7;
In addition, the diagonal piece 6 on the lever 2 pivoting side in one of the raised portions 8
The corner 9 between the slanted piece 6 and the horizontal piece 7 on the other raised portion 8' is shifted by a required distance toward the pivoting side of the lever 2, compared to the corner 9' between the diagonal piece 6 and the horizontal piece 7 on the other raised portion 8'. It is.

In the end of the door 11 hinged by the hinge pin 10,
The middle part has a through hole 12 in the lateral direction, and has an elastic body 13 inside.
An elastic pressure holding member 15 is provided in which sliders 14 and 14' are vertically opposed to each other via 13', and the through-hole 12
The lever 2 is inserted through the lever 2 so that the sliders 14 and 14' of the elastic pressure holding member 15 come into pressure contact with the surfaces of the plate pieces 1 and 1' of the lever 2.

Thus, when the door 11 is in a completely closed state, the sliders 14 and 14' of the resilient holding member 15 are positioned closest to the pivoting side of the lever 2.

In the above-described configuration, when the door 11 is opened around the hinge pin 10, the slider 14° 14' of the elastic holding member 15, which is in pressure contact with the surface of the plate pieces 1, 1' of the lever 2, 1', and slide the diagonal pieces 6 of the raised parts 8, 8'.
, 6, first, one slider 14 passes through one plate piece 1
Beyond the corner 9 between the diagonal piece 6 and the horizontal piece 7, it reaches the surface of the horizontal piece 7, and after this, the other slider
4' crosses the corner 9' between the diagonal piece 6 and the horizontal piece 7 on the other plate piece 1' and reaches the surface of the horizontal piece 7.

Therefore, without requiring a large opening force as shown by the dotted line at the opening in Figure 2, the sliders 14 and 14' can be moved onto the raised portions 8 and 8' with a fairly average force as shown by the solid line in the figure. The horizontal pieces 7, 7 can be slid toward the 7 surfaces, and an intermediate door opening can be performed at a position where the opening force is interrupted.

To explain this in more detail with reference to FIG. 6, the resistance force when the slider 14 slides along the upper plate piece 1 is:
As shown by curve a, it gradually increases from the rising corner 16, reaches a maximum at corner 9, then rapidly decreases, and then becomes constant.

In addition, the resistance force when the slider 14' slides along the lower plate piece 1' is at the rising corner as shown in the curve.
It gradually increases from 6' onwards, reaches a maximum at corner 9', then rapidly decreases, and then becomes constant.

Therefore, the operating force required to open the door against both of these resistance forces is as shown in curve C, which is a combination of curve a and curve A, and in this curve C, both corners 9 , 9' are deviated, and the peak of curve a and the peak of curve A are deviated from each other, so that the operating force when passing both corners 9 and 9' is averaged.

This curve C and a curve d (double the value of curve a) showing the operating force required in the case of the conventional structure in which the upper plate piece 1 and the plate pieces that are vertically symmetrical are joined to each other. When compared, it is clear that in curve C the peaks as in curve d can be significantly reduced and the operating forces can be averaged.

Moreover, since the lever 2 is usually pivoted to the vehicle body so that the free end can move up and down slightly, when the upper and lower sliders 14 and 14' pass through the asymmetrical raised parts 8 and 8', the upper and lower sliders 14 and 14' Slider 1
Since the lever 2 swings slightly in the vertical direction so that the downward and upward biasing forces exerted by the curves 4 and 14' are balanced with each other, the actual door opening operation force becomes gentler than that of the curve C, and the second It almost approximates the curve shown by the solid line in the figure opening.

Also, the rising corner 16 of the diagonal piece 6 on the lever 2 pivoting side in one raised part 8 of the lever 2 is set to be lower than the rising corner 16' of the diagonal piece 6 in the other raised part 8'.
If the lever 2 is not shifted by the required amount toward the pivot side, the sliders 14 and 14' will slide down the diagonal pieces 6 and 6 on the pivot side of the lever 2 when the door 11 is closed. The timing will be shifted, and the slider 14, 14' will be moved to the diagonal pieces 6, 6.
This can prevent the door from suddenly sliding down the surface and becoming completely closed.

In this way, the present invention makes it possible to open the door intermediately when the opening force is interrupted by simply making improvements to the conventional door check lever, and also prevents the door from completely closing due to inertia when closing. It can be prevented.

[Brief explanation of the drawing]

Figure 1A is a front view showing an outline of a conventional door check;
Figure 1 shows a graph showing the operating force when opening and closing the door, and Figures 2 to 5 show examples of the automobile door check according to the present invention. A front view showing the outline of the invention, Figure 2 is a graph showing the operating force when opening and closing the door, Figure 3 is a plan view, Figure 4 is a longitudinal front view, Figure 5 is a graph showing the operating force when opening and closing the door.
The figure is an exploded perspective view, and FIG. 6 is a graph showing the resistance force and operating force when opening the door.

Claims (2)

[Scope of utility model registration request] (1) The base end is pivoted to the inside of the body pillar so that it can swing horizontally. In a car door check that maintains an appropriate door opening angle, the lever is formed by two upper and lower plates, and in the middle of the plates there is a protuberance consisting of a diagonal piece and a horizontal piece at both ends. In addition, the corner between the diagonal piece and the horizontal piece on the lever pivot side of one raised part is positioned closer to the lever pivot side than the corner between the other diagonal piece and the horizontal piece. An automobile door check characterized by shifting the required dimensions. (2) The rising corner of the diagonal piece on the lever pivot side in one raised part is shifted by a required amount toward the lever pivot side from the rising corner of the diagonal piece in the other raised part. A door check for an automobile according to claim (1) of the utility model registration claim.