CN201347670Y

CN201347670Y - Automobile back door hinge

Info

Publication number: CN201347670Y
Application number: CNU2008202385634U
Authority: CN
Inventors: 刘丽; 韩光宇; 廖永红; 张效凯; 陈小均
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2008-12-31
Filing date: 2008-12-31
Publication date: 2009-11-18
Anticipated expiration: 2018-12-31

Abstract

The utility model relates to an automobile back door hinge which comprises a car door side positive hinge, a car body side positive hinge and a negative hinge, wherein the car door side positive hinge is connected with the negative hinge through a first shaft pin, the car body side positive hinge is connected with two ends of the negative hinge through a second shaft pin, the negative hinge is in I shape, the upper and the lower surfaces of the negative hinge are curved, the middle portion of the negative hinge is provided with a slide block in sliding mode, the connecting ends between the car door side positive hinge and the car body side positive hinge and between the car door side positive hinge and the car body side negative hinge are respectively provided with a first cam and a second cam, the first cam and the second cam are respectively arranged on two ends of the slide block, the outer borderline curves of the first cam and the second cam are formed by a big semi-circle plus a bit of straight line, and the straight surface of the first cam and the arc surface of the second cam are respectively attached on the two ends of the slide block in the state of closing the door. The utility model can realize the requirement of 270-degree door opening, and satisfies requirements of more consumers on biggest-angle door opening.

Description

A kind of automobile back door hinge

Technical field

The utility model relates to the body of a motor car annex, is specifically related to a kind of automobile door hinge.

Background technology

At present, what general automobile opposite opened backdoor hinge adopted is the hinge structure that is commonly called as, and is about to two metal sheet front ends volume circle, couple together with axle, its major defect is that maximum can only realize 180 degree open angles, can not satisfy the more unlatching needs of wide-angle, influence the ease of use of automobile.

Summary of the invention

For overcoming the deficiency that prior art exists, the utility model provides a kind of automobile opposite opened backdoor hinge that can make opening vehicle door than multi-angle.

The technical solution of the utility model is as follows:

A kind of automobile back door hinge includes car door side sun hinge, body side sun hinge and hinge slide block and cam etc.Car door side sun hinge is connected with hinge by first pivot pin, and body side sun hinge is connected with the hinge two ends by second pivot pin.Hinge is an I shape, and external surface is a curved surface up and down, is slidingly fitted with slide block at described hinge middle part.On the link of car door side sun hinge and body side sun hinge and hinge, be separately installed with first cam and second cam, and first cam and second cam lay respectively at the slide block two ends, the outer contour of first cam and second cam is that large semicircle adds a bit of straight line formation, closing a state, the planarea of first cam and the second cam circle cambered surface are attached to the slide block two ends respectively.

During motion, car door side sun hinge and body side sun hinge and hinge do relative motion around axis, at first car door side sun hinge rotates around first pivot pin with hinge, when 150 spend, position limit arm on hinge and the car door side sun hinge contacts, hinge stops operating, when the angle of door continued to increase, first pivot pin no longer rotated under the stopping of position limit arm, and the second pivot pin setting in motion, car door side sun hinge and hinge begin wholely to rotate around second pivot pin, and when forwarding 120 to when spending, hinge contacts with the positive stop lug boss of the positive hinge of body side, thereby limiting door is rotated further, and reaches maximum door opening state 270 degree.

The utility model can realize that open angle can reach the requirement of opening the door of 270 degree, satisfies the demand of more clients to the car door opening maximum angle.

Description of drawings

Fig. 1 is the structural representation of this hinge;

Fig. 2 is the structural representation of hinge;

Fig. 3 is the stereogram of Fig. 2.

Fig. 4 is the structural representation of car door side sun hinge;

Fig. 5 is the structural representation of body side sun hinge;

Fig. 6 is the structural representation of slide block;

Fig. 7 is the mounting structure figure of slide block and hinge;

Fig. 8 is slide block, hinge and cam matching chart;

Fig. 9 is the structural representation of cam;

Figure 10 is the assembling schematic diagram of cam and body side sun hinge;

The specific embodiment

Referring to Fig. 1, the car door side of this hinge sun hinge 5 is connected hinge 2 one ends by the first pivot pin pin pin 3, and body side sun hinge 6 is connected hinge 2 other ends by second 7.Slide block 1 is slidingly mounted on the middle part of hinge 2 by screw 8 and slotted hole, on the link of car door side sun hinge 5 and body side sun hinge 6 and hinge 2, be separately installed with first cam 4 and second cam, 9, the first cams 4 and second cam 9 and lay respectively at slide block 1 two ends.Hinge 2 is made up of main body 2-1, last plane 2-2, side plane 2-3, lower plane 2-4, side plane 2-5, groove 2-6, screwed hole 2-7, external surface 2-8, pin-and-hole 2-9.

Referring to Fig. 2 and Fig. 3, the main body 2-1 of hinge 2 is " worker " font, and external surface 2-8 is a curved surface, also is appearance; Respectively there is a pin-and-hole 2-9 at the two ends of hinge, and the axis of pin-and-hole 2-9 is parallel to each other, and for guaranteeing first and second 3,7 and pin-and-hole 2-9 good fit, pin-and-hole 2-9 needs fine finishining; The two sides 2-3 of hinge 2 and side 2-5 are machined surface, processing dimension L1 determines according to the diameter of first and

second cams

4,9 and the radius of gyration of car door side sun hinge 5, processing dimension L2 determines according to the radius of gyration of body side sun hinge 6, for avoiding interfering in the motion process, size L1 and L2 are suitably big, and preferably the gap of negative and positive hinge is more than 3 millimeters; Two screwed hole 2-7 are arranged on the last plane 2-2, be used to install and fix the screw 8 of slide block 1, slide block 1 horizontally slips on this plane, for the frictional force that slide block 1 is slided reduces as far as possible, 2-2 needs a little groove 2-6 on the last plane, coats lubricating grease in the groove 2-6, during slide block 1 motion, lubricating grease in the groove 2-6 will be attached on the slide block 1, lubricate; Lower plane 2-4 is the confined planes of car door side sun hinge 5 when closing.The hinge of opposite opened backdoor hinge, other part in linkage moves, and realizes opening and closing the purpose of 270 degree.

Referring to Fig. 4, car door side sun hinge 5 is made up of mount pad 5-1, hinge body 5-2 and position limit arm 5-3.Mount pad 5-1 all is designed to the plane up and down, and certain thickness is arranged, and 2 to 3 circular holes are arranged above, can pass the bolt of M8.Position limit arm 5-3 is a tongue type structure, and shape can be rectangle or semicircle, and size will adapt to the space at hinge 2, and requiring simultaneously has certain thickness, and a screwed hole is arranged on the arm.Hinge body 5-2 one end and mount pad 5-1 are connected together by arc surface, the other end and position limit arm 5-3 connect together, with the upper and lower surface of position limit arm link be the plane, and through machining, size adapts to the size of hinge, has a square groove 5-4 on one of them plane, and other has a columniform unthreaded hole to run through this place's profile, for weight reduction, main body is pumped into wall shape structure.

Referring to Fig. 5, body side sun hinge 6 is made up of mount pad 6-1, hinge body 6-2 and positive stop lug boss 6-3.Mount pad 6-1 all is designed to the plane up and down, and certain thickness is arranged, and 3 circular hole 6-4 are arranged above, and size is 10mm, can pass the bolt of M8, owing to be installed on the vehicle body, installed surface is very big.Position limit arm 6-3 is a semicircle column type structure, and amount of force determined that active force greatly then size is big when size will be according to the movement angle of hinge and motion; Hinge body 6-2 one end and mount pad 6-1 are connected together by arc surface, the other end and positive stop lug boss 6-3 connect together, with the upper and lower surface of positive stop lug boss 6-3 link be the plane, and through machining, size adapts to the size of hinge 2, wherein go up and have a square groove 6-5 on the plane, other has a columniform pin-and-hole 6-6 to run through this place's profile.

Referring to Fig. 6, the outward appearance of slide block 1 is that " [" shape has two slotted hole 1-2 on the principal mode face 1-1 of slide block 1, is used for mounting screw 8.The surface of slide block 1 is the plane, and the one, convenient processing be the more important thing is with other part to cooperatively interact.Horizontally slip among the little groove 2-6 of slide block lower plane 1-3 plane 2-2 on hinge (as Fig. 2), for the frictional force that slide block is slided reduces as far as possible, coat lubricating grease in the little groove 2-6, during slide block movement, lubricating grease in the little groove 2-6 will be attached on the slide block, lubricate.After hinge 2, car door side sun hinge 5, body side sun hinge 6 and the one the

second cams

4,9 are linked together, slide block 1 is assemblied in 2 li of hinges, assembling rear slider 1 concerns as Fig. 7 and Fig. 8 with the position of other part, at this moment, the lower plane 1-3 of slide block 1 contacts with the last plane 2-2 of hinge 2, the side 1-4 of slide block 1 contacts with facing directly of cam 4, and the side 1-5 of slide block 1 cooperates with the arc surface of cam 9.Hinge is in closed condition.

Referring to Fig. 9 and Figure 10, first cam 4 is made up of body 4-1, square muscle 4-2 and axis hole 4-3.Cam is a disk-shaped structure, the outward appearance semicircular in shape, the profile of cam is a disk to be cut a part and the semicircle that forms adds the combined shaped of straight line, and a square muscle 4-2 is arranged on the body 4-1, section is a rectangle, be used for and positive hinge between assembling.An axis hole 4-3 is arranged on the body 4-1, be used to assemble pivot pin.

During assembling, the square muscle 4-2 of cam 4 is contained in the groove of car door side sun hinge 5, adopt interference fit, as Fig. 4, the square muscle of second cam 9 will be contained in the groove of body side sun hinge 6, will adopt interference fit, as Fig. 5, axis hole 4-3 center must overlap with the axis hole center of car door side sun hinge 5, and the axis hole center of second cam 9 must overlap with the axis hole center of body side sun hinge 6; Then strap cam, positive hinge and hinge 2 are put together, pass the circular hole of positive hinge respectively with

first pivot pin

3,7, like this, just hinge 2, body side sun hinge 6 and second cam 9 are linked together.Next, slide block 1 is contained on the hinge 2, tightens as Fig. 4 with two screws 8, after assembling was finished, the position relation between first and

second cams

4,9 and slide block 1, the hinge was as Fig. 8.At last the hinge that assembles is adorned respectively with bolt and be contained on car door and the vehicle body, tighten.

During motion, car door side and body

side sun hinge

5,6 do relative motion around axis with hinge 2, at first car door side sun hinge 5 rotates around first pivot pin 3 with hinge 2, when 150 spend, hinge 2 and car door side sun hinge 5 upper limit arm contact, hinge 2 stops operating, when the angle of door continued to increase, first pivot pin 3 no longer rotated under the stopping of position limit arm, and second pivot pin, 7 setting in motions, car door side sun hinge 5 begins to rotate around second pivot pin 7 with hinge 2, and when forwarding 120 to when spending, hinge 2 contacts with the confined planes of the positive hinge 6 of body side, thereby limiting door is rotated further, and reaches maximum door opening state 270 degree.

Claims

1, a kind of automobile back door hinge includes car door side sun hinge, body side sun hinge and hinge; Car door side sun hinge is connected with hinge by first pivot pin, and body side sun hinge is connected with the hinge two ends by second pivot pin; It is characterized in that: described hinge is an I shape, and external surface is a curved surface up and down, is slidingly fitted with slide block at described hinge middle part; On the link of described car door side sun hinge and body side sun hinge and hinge, be separately installed with first cam and second cam, and first cam and second cam lay respectively at the slide block two ends, the outer contour of described first cam and second cam is that large semicircle adds a bit of straight line formation, closing a state, the planarea of first cam and the second cam circle cambered surface are attached to the slide block two ends respectively.

2, automobile back door hinge according to claim 1 is characterized in that: on the described slide block slotted hole is arranged, be installed in by screw in the chute of hinge.

3, automobile back door hinge according to claim 1 and 2 is characterized in that: described car door side sun hinge is provided with position limit arm in the inboard that is connected an end with hinge, and the arcwall face inboard with the hinge middle part cooperates spacing.

4, automobile back door hinge according to claim 3 is characterized in that: described body side sun hinge has positive stop lug boss in the arranged outside that is connected an end with hinge, cooperates spacing with the arcwall face in the outside, hinge middle part.

5, automobile back door hinge according to claim 4, it is characterized in that: on hinged of described first cam and second cam and car door side sun hinge and the body side sun convex tendon is arranged, at the connecting portion of car door side sun hinge and body side sun hinge groove with the convex tendon interference fit is arranged accordingly, first cam and second cam are installed on car door side sun hinge and the body side sun hinge by convex tendon and groove.