JPS5913631B2 - Automotive door check device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automobile door checking device that maintains an automobile door at a predetermined opening degree.

Conventionally, devices of this kind have been proposed, such as a stepless check type in which the door opening degree is continuously maintained by frictional resistance, and a stepped check type in which the door opening degree is maintained at a preset door opening degree by a decline mechanism.

The stepless check type is advantageous in that the door can be held at an arbitrary opening degree, but when the car is stopped on a slope and the door is opened, the slope of the slope and the door's own weight make it easy to open or close the door. It is difficult to hold the door in the desired position, and even when the car is parked on a flat surface, if a gust of wind occurs while the door is open, the door is likely to open or close, making it difficult to hold the door in the desired position. In order to solve this problem, increasing the holding force to maintain the door opening will increase the force required to open and close the door, so the holding force is limited in order to ensure smooth operation, which is not sufficient. I couldn't say it.

In addition, in a stepped movement check type device, for example, as shown in No. 1A, when the door is in the closed state (the state shown in No. 1A), a roller pin is attached to the fixing plate 12 which is fixed to the body piece (not shown) by a well-known fixing means in the mounting hole 12a. A roller 14 pivotally mounted by a pin 15 engages with a cam surface 18a of a check arm 18 which is pivotally mounted by a pin 19 to a movable plate 10 which is fixed to a door (not shown) by a well-known fixing means through a mounting hole 10a. Therefore, the stopper 10b is not in contact with the roller pin 15.

When the door is operated in the opening direction, the movable plate 10 touches the hinge pin 1
3 as a fulcrum, the roller 14 separates from the cam surface 18a and engages with the cam surface 18b.

At this time, the door is held in the intermediate open state.

In this state, the stopper 10b rotates together with the movable plate 10 and approaches the opening lap pin 15, but does not come into contact with it, compared to the above-described door closed state.

When the door is fully opened, the roller 14 comes into contact with the cam surface 18C, and by the urging force of the spring 11, the roller 14 is maintained in this state, and the door is maintained in the fully open state.

Also, at this time, the stopper 10b simultaneously contacts the roller pin 15 to restrict the full opening angle of the door.

The change in operating torque during such an opening operation is the 1st B.
It is expressed as a solid line 20 (points 21 to 25) in the figure, and the operating torque immediately before the door is opened from the fully closed state is at point 2.
It is indicated by 1.

When the door is opened, the intermediate open state of the door corresponds to point 23, and the fully open state of the door corresponds to point 25 (35).

Further, the areas between points 22 and 23 and between points 24 and 25 indicate areas where the roller 14 automatically descends toward the bottoms of the cam surfaces 18b and 18C.

When the door is closed from a fully open state, the operation is opposite to that described above.

(Details are omitted) The change in operating torque during this closing operation is expressed as a solid line 30 (points 35 to 39) in Figure 1B, and the operating torque when the door is fully closed is Indicated by point 39.

The intermediate open state of the door when the door is closed corresponds to point 23.

Furthermore, the areas between points 36 and 37 and between points 38 and 39 indicate areas where the roller 14 automatically descends toward the bottoms of the cam surfaces 18b and 18a.

Thus, the door is maintained in equilibrium in both areas of point 38 and point 22 and point 36 and point 24 in 1B.

However, since both of these equilibrium areas are sandwiched in comparison with the automatic lowering area, it is rare for the door to be held in both equilibrium areas during the door opening or closing operation, and the door may be in the fully closed state or in the middle open state. It automatically swings and is held in either the open or fully open state.

Therefore, the device having the operating torque shown in FIG. 1B can be used when it is necessary to hold the door in a state other than the above-mentioned state (1), for example, when the door is opened to the opening degree before setting it to the intermediate open state when exiting the vehicle to check the rear, etc. It is necessary for the door operator to hold the door against the automatic movement of the door, and the device cannot be said to be optimal for such an operation.

Furthermore, since the operating torque fluctuates rapidly, combined with the above-mentioned operation, the operating feeling was not satisfactory.

The present invention has been made in view of the above points, and provides an automobile door check device that allows the door to be held even in the door open state other than the intermediate open state, and provides a good operating feeling. It is something to do.

An embodiment of the present invention will be described below based on the drawings.

Referring to FIGS. 2, 3, and 4, 100 is a door check device, which is composed of a lever 120 and a holding member 110, and one end of the lever 120 is attached to a pillar 1 of the body.
It is pivotally connected by a pin 106 via a bush 126 to a bracket 104 fixed at a position away from the center of the hinge of the door No. 03.

107 is a door, 108 is a window glass, a holding member 110 is fixed to the door 107 by bolts 113, 113 fixed to a case 111 of the holding member, and the door rotates around the hinge center 105 of the door as a fulcrum. Accordingly, the holding member 110 can be slid on the lever 120 between the solid line position and the two-dot chain line position in FIG.

A stopper plate 127 is fixed to the other end of the lever 120 to restrict displacement of the holding member 110, and a buffer member 128 is attached to the contact surface between the plate 127 and the holding member 110 to reduce the contact impact. be.

129 is a pin for fixing the stopper plate to the lever 120.

The lever 120 is made up of two plates 101 and 102, each of which has raised portions 101a and 102a that are raised in the vertical direction.
and 101b, 102b are raised in the width end direction of the lever 120 as shown in the fourth figure around the groove-shaped contact pressure parts 123 and 124 that are continuous in the longitudinal direction of the lever, and the contact pressure parts adjacent to the raised parts are 121e, 122c, 121d, 122d
, and 121e and 122e by a slope.

The lever 120 having such a shape can also be formed integrally between two plates.

The holding member 110 is attached to the contact pressure portion 121 near the pin 106.
c.

When located at position 122c, the door is fully closed and the raised portion 101a
, 102a and 101b, 102b, it is in a half open state, and when it is located in contact pressure parts 121e, 122e near the rotation end of the lever 120, it is in a fully open state. Further, the holding member 110 is a pressure contact portion 121e.

When it is located at 122e, it is in contact with the buffer member 128.

In addition, the pressure contact parts 121d and 122d are the raised parts 101a and 102.
This is a depression between a, 101b, and 102b.

The cover 112 and case 111 of the holding member 110 are fixed to the body so as to house springs 119, 119 therein.

Inside each of the springs 119.1'19, there is a holder 115 which receives the biasing action of the spring and holds rollers 117 and 117 which sandwich the lever 120 and create sliding resistance.
, 115 are attached.

A protrusion is formed on the surface of the holding body 115, 115 that comes into contact with the spring 119, 119, so that the spring 119
, 119.

Therefore, the suffling 119° 119 is attached to the holding body 115,1.
15, a space for spring deformation can be formed between the case 111 and the cover 112.

Therefore, the springs 119, 119 deform smoothly, and the springs 119, 119 always deform the holder 115.
115 is stably energized.

Further, bolts 113, 113, which are the means for attaching the case 111 mentioned above, are arranged in this space.

Since the poles N13 and 113 are attached to the springs 119 and 119, the case 111, that is, the check device, is made smaller.

The rollers 117 and 111 are connected to the holding bodies 115 and 11.
Pin 11 fitted into the U-shaped side plates (not shown) of 5
It is rotatably supported by 8°118.

Also, the rollers 117, 11? and holding bodies 115, 115
Either one of them may be fixed, the spring on that side may be removed, and only the other spring may be used.

It goes without saying that other elastic bodies may be used instead of the springs 119, 119.

The holding bodies 115, 115 have an arcuate guide portion 116.
, 116 are provided, and the guide portion 116.116
have their arcuate surfaces facing the side plates (not shown), and the distance between the tips of the same arcuate surfaces is the same as the lever 1 inserted between them.
The lever 120 is formed slightly larger than the width of the lever 120.
A gap is formed between the two.

114 is a sealing member for preventing rainwater, dust, etc. from entering the inside of the holding member 110.

Note that the guide portions 116, 116 may not be arcuate as shown in the drawings, but may be protrusions having slopes or arcs.

Next, the operation of the embodiment configured as described above will be explained. When the door 107 is fully closed, the holding member 110 is in the second position.
The pressure contact portion 121c is indicated by a solid line in the figure.

Located on 122c.

Next, in response to the door opening movement, the holding member 110 moves its holding body 1
The rollers 11γ and 111 held by the levers 15 and 115 move to the right while clamping the lever 120 from above and below due to the elastic force of the springs 119 and 119, climb over the protrusions 101a and 102a of the lever 120, and move to the contact area. 121d
, reaches 122d.

This position is the middle open state of the door, and in this state the door is reliably held by its recess shape.

Next, when the door is further opened, the holding member 110 climbs over the next raised parts 101b and 102b, reaches the contact pressure parts 121e and 122e near the rotation end of the lever 120, and collides with the buffer member 128 at the position shown by the two-dot chain line. and stop.

In this position, the door is fully open.

Further, when changing the door from a fully open state to a fully closed state, the holding member 110 operates in the opposite manner to that described above.

During this time, the lever 1'20 swings in the direction of arrow A-A in FIG. ) is formed, so the lever 12
0 can easily swing in the direction of the arrow AA' without interfering with the holders 115, 115.

Changes in operating torque during door opening and closing operations are as shown in FIG.
1 to 205) represent changes in the door opening operation torque, and a solid line 300 (points 305 to 309) represent changes in the door closing operation torque.

The operating torque immediately before the door is opened from the fully closed state is indicated by a point 201, and as the holding member 110 moves to the right as described above in response to the door opening movement, and the roller 117° 117 begins to climb the slope, the operating torque increases. Raised portions 101a, 102a
When the roller reaches the top of the flat part, the operating torque decreases, and then remains at a substantially constant value while the roller rolls on the flat part.

Next, the roller has a raised portion 101a. When the door automatically descends from 102a toward the pressure contact parts 121d and 122d, the door opens without any external force, and the operating torque changes from point 202 to point 20.
Changes to 3.

When the rollers reach the contact areas 121d, 122d, the door is in an intermediate open state, which is represented by a point 203.

When the door is further opened from this state, the holding member 110 moves to the right, and the rollers 117, 117 move to the raised portions 101b, 102b.
When the roller starts climbing up the slope of the raised part 103, the operating torque increases from the point 203, and when the roller reaches the flat part of the raised parts 101b and 102b, the operating torque decreases, and the operating torque decreases until the roller reaches the raised part 10.
1b.

The value remains approximately constant while rolling on the flat portion 102b.

Next, the rollers 117, 117 form the raised portion 101b.

When the door is automatically lowered from 102b toward the pressure contact parts 121e and 122e, the door opens without any external force, and the operating torque is at point 2.
It changes from 04 to point 205.\.

When the rollers 117, 117 reach the pressure contact portions 121e, 122e, the door becomes fully open, and at point 205, the door is in the open position.

In this state, if you try to open the door further or if the door is opened fully, the cover 11 of the holding member 110
2 causes the buffer member 128 to elastically contract, so the operating torque increases rapidly.

After that, even if the external force in the direction of opening the door is removed, the buffer member 12
Generally, the fully open state of the door slightly shifts from point 204 to point 205 due to the restoring hysteresis of No. 8 and the like.

When the door is closed from the fully open state, it is easily understood from the relationship between the opening action and the operating torque described above, so a detailed explanation will be omitted.

The intermediate open state of the door during this closing operation corresponds to point 307, and the raised portion 101a is slightly shifted from point 203 during the closing operation.

102a and the raised portions 101b, 102b contact pressure portion 121
Difference in the slope of the slope on the d and 122d sides or the roller 117
, 1'17, and the elastic force of the springs 119, 119.

A fork 309 indicates when the door is fully opened by the closing operation.

Between points 306 and 307 and between points 308 and 309,
Rollers 117.117 move from the raised portions 101b, 102b to the pressure contact portions 121d, 122d and from the raised portion 101a.

This is an area where the door automatically descends from the contact area 102a to the pressure contact parts 121c and 122c, and the door closes without any external force.

Therefore, the areas between the points 308 and 202 and between the points 306 and 204 can be widened.

Therefore, it goes without saying that the door can be easily maintained in balance in both these areas.

Furthermore, maintaining the balance of the door is particularly effective when, for example, when exiting the vehicle, the door is opened to an opening degree prior to setting it to the intermediate open state to check the rear of the vehicle.

Therefore, it is only necessary to provide a region where the operating torque is approximately constant between the door fully closed state and the door intermediately opened state. In this case, the raised portions 101a and 102 of the lever 120 in
a is provided with a flat part as shown in the figure, and a raised part 101
It goes without saying that it is not necessary to provide a flat portion in b and 102b.

Note that the cross-sectional shape of the raised portions 101b and 102b is the same as that of the raised portion 10.
The cross-sectional shape is the same as that of 1a and 102a.

As explained in detail above, according to the present invention, a door opening degree regulation position (door intermediate open state position) is provided at a predetermined position between the door fully open position and the door fully closed position of the lever, and the door opening degree is prescribed. A raised part is formed on the end between the door fully open position and the door fully closed position, and a flat part is provided on at least one of the raised parts, and A case to which a holding member that displaces and moves the lever to maintain the door opening is attached to the door, a roller built into the case and rolling on the lever, a holder that rotatably supports the roller, and The holder includes an elastic body that biases the lever toward the lever, and the elastic body and the holder are engaged to form a space between the case and the elastic body, and the space is filled with the elastic body. Mounting means for attaching the case to the door is provided.

As a result, the elastic body is supported in a deformable manner within the case, and the holder always stably biases a predetermined location.

Therefore, the door can be maintained in equilibrium at the flat portion of the lever at an opening degree other than the preset door opening degree without being supported by an external force.

Also, since the roller rolls on the lever, even if the biasing force from the spring becomes large, the operating torque is small.
In addition, the door is detented from fully closed to intermediately open and fully open within a substantially constant operating torque range without major fluctuations, resulting in a good operating feeling. It is something that plays.

Moreover, the mounting means for mounting the door of the case can be disposed in the space formed between the case and the elastic body, which has the effect that the case, that is, the checking device, can be made smaller.

[Brief explanation of the drawing]

Fig. 1A is a plan view showing a conventional step-operation check type door check device, and Fig. 1B is a door opening degree of the device shown in Fig. 1A.
Fig. 2 is an installation state diagram of the door check device according to the present invention, Fig. 3 is a longitudinal sectional view of the door check device according to the present invention, and Fig. 4 is a cross section taken along line IV-IV in Fig. 3. 1 and 5 are door opening degree-outside operation torque characteristic diagrams of the door check device according to the present invention. 100...Door check device, 110...
...Holding member, 120...Lever, 101a,
102a... Protuberance, 101b...1
02b... Protuberance.

Claims (1)

[Claims] 1. A door that has a lever that is pivotally mounted on the body side, and a holding member that is attached to the door and that moves and moves while elastically pinching the lever in response to the door opening/closing operation to maintain an appropriate door opening degree. In the checking device, a raised portion is formed between the door fully open position and the door intermediate open position of the lever, and between the door intermediate open position and the door fully closed position, and at least one of the raised portions is flat. Established a department,
and a case in which the holding member is attached to the door;
a roller built into the case and moving over the lever;
Consisting of a holder that rotatably supports the roller, and an elastic body that urges the holder toward the lever,
A door checking device for an automobile, wherein the elastic body and the holding body are engaged and supported to form a space between the case and the elastic body, and a mounting means for attaching the case to the door is provided in the space. .