JP2009263895A - Door checker for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a door from being suddenly opened when a large load is applied to the door without affecting the holding function of a check section and the stopper function of a stopper section. <P>SOLUTION: This door checker for a vehicle comprises a check plate 31 which is interposed between a door support part 14 and a door 12 and which holds a door opening constant by restraining the relative displacement of the check plate 31 to the door support part 14 or the door 12. The door checker comprises a holding part 32 which is installed on the door support part or the door 12 and which restrains the relative displacement of the check plate 31 and a stopper part 35 which is installed on the check plate 31 and which restrains the relative displacement limit thereof to the door support part 14 or the door 12. A dilatant member (inner member) 56 hardened according to the deformation rate is interposed between the holding part 32 and the stopper part 35. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle door checker that is interposed between a door and a door support portion that supports the door and can hold the door at a predetermined opening degree.

As a vehicle door checker, when a predetermined angle with respect to a door support is opened, the vehicle is temporarily stopped at that angle and the door can be opened to a larger angle.
This type of vehicle door checker is intended to prevent the door from opening more than a predetermined angle due to strong wind or the like while the door is open.

As a technique that can be used for such a vehicle door checker, a technique using a dilatant body that has a property of hardening as the deformation speed increases is known (for example, see Patent Document 1).
JP 60-65931 A

Here, the dilatant is a kind of physics motion, and is a phenomenon in which shear stress (force applied to an object) is generated in an object and the state changes from a soft state to a hard state. An object in which this phenomenon occurs is called a dilatant body.
Since the dilatant body has small particles, when a force is applied to bring the particles into close contact with each other, the gap between the particles is reduced, the strength is increased, and the dilatant body is hardened. However, when the application of the force is stopped, the gap between the particles is widened again, and the original softness is restored.

  The technique of Patent Document 1 is filled with an outer cylinder, an inner body that is axially movable with respect to the outer cylinder, and a space between the outer cylinder and the outer periphery of the inner cylinder. A vibration isolator having a viscous body that generates shear resistance when the insert is displaced at high speed, and a spring that repels the insert against the outer cylinder and balances the weight or load of the supported object. Yes, a dilatant body is used for the viscous body.

However, in a vehicle door checker, a buffer using a dilatant body or a dilatant is used as a check part for holding the door at a fixed opening by sandwiching a check plate or a stopper part for determining a door opening limit position. In the case of using a material, there is a problem that when the door is operated slowly, the holding function of the check part and the stopper function of the stopper part are not performed.
Therefore, the use form of the buffer material using an appropriate dilatant body and a dilatant was required.

  The present invention provides a vehicle door checker that can prevent the door from opening suddenly when a large load is applied to the door without affecting the holding function of the check part and the stopper function of the stopper part. Is an issue.

The invention according to claim 1 has a check plate interposed between the door support portion and the door, and keeps the door opening constant by restricting relative displacement of the check plate with respect to the door support portion or the door. The vehicle door checker includes a holding portion that is provided on the door support portion or the door and restricts the relative displacement of the check plate, and a stopper portion that is provided on the check plate and defines a relative displacement limit with respect to the door. The dilatant member that hardens according to the deformation speed is interposed between the holding portion and the stopper portion.
Here, the dilatant member is a buffer material that utilizes the dilatant phenomenon.

  The invention according to claim 2 is characterized in that the check plate includes a normal holding part for holding the door at a normal opening, and the dilatant member is interposed between the normal holding part and the stopper part. To do.

  The invention according to claim 3 is characterized in that a gap allowing deformation of the dilatant member is formed between the check plate and the dilatant member.

  The invention according to claim 4 is characterized in that the dilatant member is formed in a part of the elastic member.

  The invention according to claim 5 is characterized in that the dilatant member extends in the relative displacement direction of the door support portion or the door and the check plate.

In the invention according to claim 1, the vehicle door checker has a check plate interposed between the door support portion and the door, and restricts relative displacement of the check plate with respect to the door support portion or the door, thereby opening the door. Keep the degree constant.
A holding part provided on the door support part or the door and restricting the relative displacement of the check plate; and a stopper part provided on the check plate and defining a relative displacement limit with respect to the door; the holding part and the stopper part; Since the dilatant member which hardens | cures according to a deformation | transformation speed | velocity is interposed in between, the buffer function by a dilatant member can be acquired, without affecting the holding | maintenance function of a holding | maintenance part, and the stopper function of a stopper part.

  In the invention according to claim 2, since the check plate includes a normal holding portion for holding the door at a normal opening, and the dilatant member is interposed between the normal holding portion and the stopper portion, the door is closed. In the region from the normal opening to the normal opening, no buffering effect is generated by the dilatant member. Therefore, a normal door operation can be performed in the normal use region, and when a large load acts on the door, a buffering effect by the dilatant member can be generated in a region exceeding the normal use region.

  In the invention according to claim 3, since the gap allowing the deformation of the dilatant member is formed between the check plate and the dilatant member, it is possible to secure a margin for deformation of the dilatant member and enhance the hardening action by the deformation. be able to.

  In the invention which concerns on Claim 4, since the dilatant member was formed in a part of elastic member, the material cost of a dilatant member can be reduced.

  In the invention according to claim 5, since the dilatant member is extended in the relative displacement direction between the door support portion or the door and the check plate, a large amount of deformation of the dilatant member can be secured. As a result, the hardening effect by deformation can be enhanced as much as possible.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a perspective view of a vehicle door opening / closing structure employing a vehicle door checker according to the present invention.
The opening / closing structure of the vehicle door includes a door support portion 14 provided on the vehicle body, a door (vehicle door) 12 attached to the door support portion 14 via hinges 13 and 13 so as to be opened and closed, and these doors. The vehicle door checker 30 is interposed between the support portion 14 and the door 12 and is held at a predetermined door opening degree and regulates the total door opening degree.

  The hinge 13 includes a door-side hinge portion 15 attached to the door 12, a support-side hinge portion 16 attached to the door support portion 14, and a connecting pin 17 that connects the hinge portions 15 and 16 so as to be swingable. Consists of.

2 is a perspective view of a vehicle door checker according to the present invention, and FIG. 3 is a cross-sectional view taken along line 3-3 of FIG.
The vehicle door checker 30 protrudes from the door 12 or is accommodated in the door 12 as the door 12 (see FIG. 1) is displaced, and is provided between the check plate 31 and the check plate 31. The check plate 31 is held at a predetermined opening, and the holding portion 32 that restricts the total door opening is attached to the front end of the check plate 31 so as to be swingable via a pin 33. A bracket 34 to be stopped and a check plate 31 provided at the rear end of the check plate 31. The check plate 31 is in contact with the holding portion 32 when the check plate 31 is in the total door opening state. And a cylindrical cushioning member 36 covering 31.

The check plate 31 is a member formed of hard rubber. The check plate 31 is formed continuously from a head 41 that faces the door support 14 from the holding portion 32 and the head 41. A closed recess 42 that fits into the holding portion 32, a first slider portion 43 that is continuously formed from the closed recess 42, and is drawn out toward the holding portion 32, and continuous with the first slider portion 43. And a normal holding portion 44 that is formed in a concave shape and fits into the holding portion 32 at a predetermined door opening, and a second slider portion 45 that is continuously formed from the normal holding portion 44 and is drawn to the holding portion 32 side. And a stopper recess 46 that is continuously and concavely formed in the second slider portion 45 and fits into the holding portion 32 at the total door opening.
The head 41 is formed with a fitting hole 48 into which the pin 33 to which the bracket 34 is attached is fitted.

  The holding portion 32 is attached to the front surface of the door 12 and is provided with a flat surface plate 51 and an elastic material that is provided on the back surface of the surface plate 51 and engages with the closed recess 42, the normal holding portion 44, and the stopper recess 46. The joint member 52 includes a storage holder 53 that is attached to the back surface of the surface plate 51 and stores the engagement member 52.

The buffer member 36 is a member extended in the relative displacement direction of the door support portion 14 or the door 12 (see FIG. 1) and the check plate 31, and is formed of an elastic member and has an outer member 55 and an outer member. The inner member 56 is formed of a dilatant member that is formed inside 55 and hardens according to the deformation speed. The buffer member 36 is normally interposed between the holding portion 44 and the stopper portion 35.
A gap S <b> 1 that allows deformation of the inner member (dilatant member) 56 is formed between the check plate 31 and the inner member 56.

Here, the dilatant is a kind of physics motion, and is a phenomenon in which shear stress (force applied to an object) is generated in an object and the state changes from a soft state to a hard state. An object in which this phenomenon occurs is called a dilatant body.
Since the dilatant body has small particles, when a force is applied to bring the particles into close contact with each other, the gap between the particles is reduced, the strength is increased, and the dilatant body is hardened. However, when the application of the force is stopped, the gap between the particles is widened again, and the original softness is restored.

As a typical example, when a sandy beach is stepped on or pressed down, the sand becomes hard, and when it contains seawater, it becomes harder. On ordinary dry sandy beaches, car tires slip and the steering wheel cannot be operated, but where this phenomenon occurs, the sand is hard, so you can drive by car or park on the sandy beach.
That is, the dilatant member is a material that has the property of curing according to the deformation speed using the above phenomenon.

  The vehicle door checker 30 includes a normal holding portion 44 for holding the door 12 (see FIG. 1) at a normal opening on the check plate 31, and the dilatant member is located between the normal holding portion 44 and the stopper portion 35. In the region from the door closed state to the normal opening degree, the buffering effect by the dilatant member is not generated. Therefore, a normal door operation can be performed in the normal use region, and when a large load is applied to the door 12, a buffering effect by the dilatant member can be generated in a region exceeding the normal use region.

  It can be said that the buffer member 36 is formed with a gap S1 that allows deformation of the dilatant member between the check plate 31 and the dilatant member. The buffer member 36 can secure a deformation margin of the dilatant member. Can be increased.

  In the buffer member 36, it can be said that the dilatant member (inner member) 56 is formed in a part of the elastic member, and the material cost of the dilatant member can be reduced.

  The buffer member 36 can be said to be a member in which the dilatant member 56 is extended in the relative displacement direction between the door support portion 14 or the door 12 (see FIG. 1) and the check plate 31, and ensures a large amount of deformation of the dilatant member 56. be able to. As a result, the hardening effect by deformation can be enhanced as much as possible.

4 (a) and 4 (b) are explanatory views of the first half of the vehicle door checker shown in FIG.
In (a), the vehicle door checker 30 in which the door 12 shown in FIG. 1 is closed is shown, and the closed recess 42 of the check plate 31 is engaged with the engaging member 52 of the holding portion 32.

  1B, when the door 12 shown in FIG. 1 is opened to a predetermined door opening degree, the normal holding part 44 of the check plate 31 is engaged with the engaging member 52 of the holding part 32, and the door opening degree is reduced. A predetermined opening degree is maintained. In this state, since the buffer member 36 is not in contact with the holding portion 32, the buffer member 36 has no particular action.

FIGS. 5A and 5B are explanatory views of the latter half of the vehicle door checker shown in FIG.
1A shows a check plate 31 when the door 12 shown in FIG. 1 is slowly opened from a predetermined opening to a total door opening, and the dilatant member used for the inner member 56 of the buffer member 36 is Since it has a property of curing according to the deformation speed, when the door 12 is slowly opened from a predetermined opening degree, the inner member 56 hardly cures. Therefore, it can open to the total door opening.

  1B shows a check plate 31 when the door 12 shown in FIG. 1 is rapidly opened from a predetermined opening due to a gust of wind or the like, and a dilatant member used for the inner member 56 of the buffer member 36 is shown. Has the property of hardening according to the deformation speed, the inner member 56 is hardened and the door 12 can be prevented from opening.

That is, the vehicle door checker 30 includes a check plate 31 interposed between the door support 14 or the door 12 and restricts relative displacement of the check plate 31 with respect to the door support 14 or the door 12. The opening is kept constant.
A holding part 32 provided on the door support part 14 or the door 12 and restricting the relative displacement of the check plate 31; and a stopper part 35 provided on the check plate 31 and defining a relative displacement limit with respect to the door support part 14 or the door 12. Since a dilatant member (inner member) 56 that cures according to the deformation speed is interposed between the holding portion 32 and the stopper portion 35, the holding function of the holding portion 32 and the stopper function of the stopper portion 35 are affected. The buffer effect by the dilatant member 56 can be obtained without giving.

FIG. 6 is a sectional view of a vehicle door checker according to another embodiment of the present invention. The same parts as those used in the cross-sectional view of the vehicle door checker 30 (see FIG. 3) are denoted by the same reference numerals, and detailed description thereof is omitted.
The vehicle door checker 70 is a component having the same function as the vehicle door checker 30, is swingably attached to the check plate 71, the holding portion 72, and the tip of the check plate 71 via a pin 73, and supports the door. The bracket 74 is engaged with the portion 14 (see FIG. 1) and the stopper portion 75 is provided at the rear end of the check plate 71 and contacts the holding portion 72 when the door is in the total door opening state.

The check plate 71 is a member formed of hard rubber, and includes a head portion 81, a closed state recess 82, a first slider portion 83, a normal holding portion 84, a second slider portion 85, and a stopper. It consists of a recess 86. The head 81 is formed with a fitting hole 88 into which the pin 73 to which the bracket 74 is attached is fitted.
The holding portion 72 includes a surface plate 91, an engagement member 92, and a storage holder 93.

FIGS. 7A to 7E are perspective views of the stopper portion of the vehicle door checker according to another embodiment shown in FIG.
In (a), the stopper part 75 used for the vehicle door checker 70 is shown. The stopper part 75 is affixed to the front surface of the stopper base 95 formed of an elastic member and the stopper base 95, and is a dilatant member. And an adhesive member 96 formed of

  A stopper portion 101 according to another embodiment 1 shown in FIG. 5B includes a stopper base 111 formed of an elastic member, and a plurality of cylindrical inserts formed in a rectangular shape on the stopper base 111 and formed of a dilatant member. Member 112.

  A stopper portion 102 according to another embodiment 2 shown in FIG. 5C includes a stopper base 114 formed of an elastic member and a plurality of rectangular parallelepiped stickers formed in a rectangular shape on the stopper base 114 and formed of a dilatant member. Member 115.

  A stopper portion 103 of another embodiment 3 shown in FIG. 4 (d) includes a stopper base 117 formed of an elastic member, and a plurality of cylindrical cylinders that are linearly arranged on the stopper base 117 and formed of a dilatant member. And an insertion member 118 having a shape.

  A stopper portion 104 of another embodiment 4 shown in (e) is provided with a stopper base 121 formed of an elastic member, and a plurality of cylindrical cylinders arranged on the stopper base 121 in an elliptical shape and formed of a dilatant member. And an insertion member 122.

  In (a) to (e), the dilatant members 96, 112, 115, 118, 122 prevent the rotational moment from acting on the check plate 71 when absorbing the impact of the door 12 shown in FIG. 1. Are arranged on the left and right or top and bottom.

FIGS. 8A and 8B are explanatory views of the operation of the vehicle door checker according to another embodiment shown in FIG. (A) shows a vehicle door checker 200 of a comparative example, and (b) shows a vehicle door checker 70 of another embodiment.
In (a), the vehicle door checker 200 includes a check plate 201, a holding part 202, and a stopper part 205.

  Since the stopper portion 205 is formed of an elastic member, the thickness of the stopper portion 205 is increased when trying to satisfy a predetermined shock absorbing performance. If the distance from the back surface of the holding part 202 to the rear end of the stopper part 205 is A1, and the thickness of the stopper part 205 is L1, the stroke of the vehicle door checker 200 is S1.

  In (b), the vehicle door checker 70 includes a stopper portion 75 formed of an elastic member, a stopper base 95, and an adhesive member 96 formed of a dilatant member that is attached to the front surface of the stopper base 95. Thus, since the dilatant member has a property of curing according to the deformation speed, the stopper portion 75 can be formed thin by affixing the dilatant member affixing member 96 to the stopper base 95.

  In the vehicle door checker 70, if the distance from the rear surface of the holding portion 72 to the rear end of the stopper portion 75 is A1, and the thickness of the stopper portion 75 is L2, the stroke of the vehicle door checker 70 is S2.

  In (a) and (b), when comparing the vehicle door checker 70 of the example and the vehicle door checker 200 of the comparative example, the thickness L1 of the stopper portion of the vehicle door checker 200 of the comparative example is Since it is necessary to make it thicker than the thickness L2 of the stopper portion 75 of the vehicle door checker 70, the stroke S1 of the vehicle door checker 200 of the comparative example is shorter than the stroke S2 of the vehicle door checker 70 of the embodiment.

  That is, the vehicle door checker 70 of the embodiment can be designed more compactly than the vehicle door checker 200 of the comparative example. In other words, the vehicle door checker 70 of the embodiment can have a longer stroke than the vehicle door checker 200 of the comparative example.

  In the vehicle door checker according to the present invention, as shown in FIG. 3, the buffer member 36 is supported by the stopper portion 35. However, the present invention is not limited to this, and the buffer member 36 is supported on the back surface of the holding portion 32. It may be what was done.

  The vehicle door checker according to the present invention is suitable for use in passenger cars such as sedans and wagons.

It is a perspective view of the opening / closing structure of the vehicle door which employ | adopted the vehicle door checker which concerns on this invention. 1 is a perspective view of a vehicle door checker according to the present invention. FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. FIG. 3 is an explanatory diagram of the first half operation of the vehicle door checker shown in FIG. 2. FIG. 4 is an explanatory diagram for the latter half of the operation of the vehicle door checker shown in FIG. 2. It is sectional drawing of the vehicle door checker of another Example which concerns on this invention. It is a perspective view of the stopper part of the vehicle door checker of another Example shown by FIG. FIG. 7 is an operation explanatory view of the vehicle door checker of another embodiment shown in FIG. 6.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 12 ... Door, 14 ... Door support part, 30 ... Door checker for vehicles, 31 ... Check plate, 32 ... Holding part, 35 ... Stopper part, 36 ... Buffer member, 44 ... Normal holding part, 56 ... Inner member (dilatant member) ), S1...

Claims (5)

In a vehicle door checker having a check plate interposed between a door support portion and a door, and holding a door opening constant by regulating a relative displacement of the check plate with respect to the door support portion or the door. ,
A holding part that is provided on the door support part or door and restricts relative displacement of the check plate; and a stopper part that is provided on the check plate and defines a relative displacement limit with respect to the door;
A vehicle door checker characterized in that a dilatant member that cures according to a deformation speed is interposed between the holding portion and the stopper portion.   The check plate includes a normal holding portion for holding the door at a normal opening degree, and the dilatant member is interposed between the normal holding portion and the stopper portion. The vehicle door checker described.   The vehicle door checker according to claim 1 or 2, wherein a gap allowing deformation of the dilatant member is formed between the check plate and the dilatant member.   4. The vehicle door checker according to claim 1, wherein the dilatant member is formed in a part of an elastic member.   5. The vehicle door checker according to claim 4, wherein the dilatant member extends in a relative displacement direction between the door support portion or the door and the check plate.

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