CN217233168U - Vehicle door hinge - Google Patents

Abstract

The utility model relates to a door hinge, including first hinge arm, second hinge arm and with the articulated hinge seat together of first hinge arm and second hinge arm, the hinge seat includes: a metal stud fixed to the first hinge arm, the metal stud defining a stud axis and comprising a main body at least partially provided with a toothed periphery; a plastic slider; a resilient member applying a force to the plastic slider in a direction toward the axis of the stud to cause the plastic slider to engage the toothed periphery; and a shell fixed to the second hinge arm, the shell enclosing the main body of the metal stud, the plastic slider, and the elastic member, wherein the plastic slider is configured to slide along the toothed periphery in engagement with the toothed periphery in a state in which one of the first hinge arm and the second hinge arm is subjected to an external force greater than a preset value while rotating about the stud axis relative to the other of the first hinge arm and the second hinge arm. The utility model provides a door hinge has limit function and easily dismouting.

Description

Vehicle door hinge

Technical Field

The utility model relates to a vehicle spare part technical field, more specifically, the utility model relates to a door hinge.

Background

The opening and closing of the vehicle door are mainly limited by a vehicle door hinge and a stopper, the vehicle door hinge is a key part for connecting the vehicle door and a vehicle body, the main function is to enable the vehicle door to be normally opened and closed, and the stopper has the main function of limiting the maximum opening angle of the vehicle door and can stop at the preset opening angle. In practical application, the arrangement of stopper can occupy very big space, and is very big to the influence of glass guide rail position, is unfavorable for the stamping forming of door inner panel, if the stopper is integrated on the hinge, just need not solitary stopper, has saved door inner space, more does benefit to inside annex and arranges. Moreover, in the prior art, the integrated hinge is difficult to disassemble, and has influence on the installation of the door line body of the main engine plant.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a door hinge that has limit function and easily dismouting.

According to an aspect of the present invention, there is provided a door hinge including a first hinge arm, a second hinge arm, and a hinge mount which articulates the first hinge arm and the second hinge arm together, the hinge mount including: a metal stud fixed to the first hinge arm, the metal stud defining a stud axis and comprising a main body at least partially provided with a toothed periphery; a plastic slider; a resilient member applying a force to the plastic slider in a direction toward the axis of the stud to cause the plastic slider to engage the toothed periphery; and a shell fixed to the second hinge arm, the shell enclosing the main body of the metal stud, the plastic slider, and the elastic member, wherein the plastic slider is configured to slide along the toothed periphery in engagement with the toothed periphery in a state where one of the first hinge arm and the second hinge arm is subjected to an external force greater than a preset value while rotating about the stud axis relative to the other of the first hinge arm and the second hinge arm.

Alternatively, the toothed periphery includes concave portions and convex portions alternately arranged in the circumferential direction, the concave portions being closer to the stud axis than the convex portions, wherein the plastic slider is configured to engage with the concave portions in a state where one of the first hinge arm and the second hinge arm is not subjected to an external force or is subjected to an external force equal to or less than a preset value, and to slide along the concave portions and the convex portions while keeping engagement with the concave portions and the convex portions in a state where one of the first hinge arm and the second hinge arm is subjected to an external force greater than a preset value while rotating around the stud axis with respect to the other of the first hinge arm and the second hinge arm.

Optionally, the resilient member comprises a coil spring or an air spring.

Optionally, the hinge mount further comprises a tab integrally formed with the shell, the tab configured to abut against the first hinge arm in a state where one of the first and second hinge arms is rotated to a preset angle about the pillar pin axis relative to the other of the first and second hinge arms to prevent the one of the first and second hinge arms from being rotated to more than the preset angle about the pillar pin axis relative to the other of the first and second hinge arms.

Optionally, the shell comprises a first opening and a second opening, a connecting line of the center of the first opening and the center of the second opening coincides with the axis of the pin shaft, a first section and a second section of the metal pin axially protruding from two ends of the main body respectively pass through the first opening and the second opening, wherein the diameters of the first section and the second section are respectively set to be smaller than the diameters of the first opening and the second opening, and the axial lengths of the first section and the second section are respectively set to be larger than the axial lengths of the first opening and the second opening.

Optionally, the first opening is defined by a first periphery of the shell and the second opening is defined by a second periphery of the shell, and the hinge mount further comprises a first bushing fixed around the first periphery and a second bushing fixed around the second periphery, the first and second sections passing through the first and second bushings, respectively, wherein the first and second sections are arranged to have a diameter smaller than an inner diameter of the first and second bushings, respectively, and an axial length greater than the axial length of the first and second bushings, respectively.

Optionally, the first and second bushings are both made of a wear-resistant metal material.

Optionally, the hinge mount further comprises a bolt, the first hinge arm comprises a circumferential wall defining an axial through hole, and the metal stud comprises a third section projecting axially from the first section and a threaded hole extending through at least the third section along the stud axis, the third section passing through the axial through hole, and the bolt is configured to pass through the axial through hole opposite the third section to thread into the threaded hole until the circumferential wall abuts against the first section.

Optionally, the hinge mount further comprises a washer and the metal stud further comprises a fourth section projecting axially from the second section, the fourth section forming an annular groove with the second section such that the washer is retained in the annular groove against the second section.

Alternatively, one of the first hinge arm and the second hinge arm is configured to be fitted to the vehicle door, and the other of the first hinge arm and the second hinge arm is configured to be fitted to the vehicle body separately from the one of the first hinge arm and the second hinge arm in a state where the bolt is detached.

The utility model provides a door hinge has the limit function who is equal to door aperture stopper, promptly, both can restrict the door for the maximum aperture of automobile body, can keep the door to a certain extent again for the switching degree of automobile body, consequently, use the utility model provides a door hinge's the condition under, can save door aperture stopper selectively, this is favorable to saving door inner space to especially be used for setting up the lift guide rail who is used for door glass more in a flexible way. In addition, in the door hinge provided by the utility model, the metal pin and the plastics slider of mutually supporting are made by different materials, can reduce the mechanical noise that causes because the door switching. Additionally, in the door hinge provided by the utility model, can only just separate first hinge arm and the second hinge arm that has the hinge seat through the bolt of pulling down, be favorable to realizing the dismouting and the maintenance of door.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a perspective view of a door hinge according to an embodiment of the present invention.

Fig. 2 is another perspective view of the door hinge of fig. 1.

Fig. 3 is a perspective view of an inner structure of a hinge base of the door hinge of fig. 1.

Fig. 4 is a cross-sectional view of the door hinge of fig. 1.

FIG. 5 is an enlarged partial cross-sectional view of the door hinge of FIG. 4.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Referring to fig. 1, an exemplary vehicle door hinge 10 includes a first hinge arm 12, a second hinge arm 14, and a hinge mount 16, the hinge mount 16 hingedly connecting the first hinge arm 12 and the second hinge arm 14 together, i.e., one of the first hinge arm 12 and the second hinge arm 14 may rotate about a hinge axis relative to the other of the first hinge arm 12 and the second hinge arm 14. For example, one of the first hinge arm 12 and the second hinge arm 14 may be assembled to the vehicle door and the other of the first hinge arm 12 and the second hinge arm 14 may be assembled to the vehicle body by bolting, welding, or the like. Hereinafter, the fitting of the first hinge arm 12 to the vehicle body and the fitting of the second hinge arm 14 to the vehicle door will be described as an example.

First, hinge base 16 includes a shell 18 fixed to second hinge arm 14 and a boss 20 integrally formed with shell 18. When the door is closed relative to the vehicle body, the bump 20 is spaced apart from the first hinge arm 12, as shown in fig. 1. When the vehicle door is opened with respect to the vehicle body, the shell 18 will rotate about the hinge axis with the second hinge arm 14 with respect to the first hinge arm 12, thereby causing the tab 20 to gradually approach the first hinge arm 12 until abutting against the first hinge arm 12 at a preset angle (e.g., 90 degrees) at which the vehicle door is opened with respect to the vehicle body to prevent the second hinge arm 14 from rotating about the hinge axis beyond the preset angle with respect to the first hinge arm 12, as shown in fig. 2. Therefore, the bump 20 has a function of limiting the maximum opening degree of the door with respect to the vehicle body, and therefore the bump 20 may also be referred to as a door stopper. To ensure the strength of the lugs 20, the shell 18 and lugs 20 may be formed from a hard metal material (e.g., steel). In addition, a suitable cushion may be provided on the boss 20 or the first hinge arm 12 to prevent mechanical noise caused by hard contact between the boss 20 and the first hinge arm 12.

Referring to fig. 3 in which shell 18 is removed to show the internal structure of hinge base 116, hinge base 16 further includes: a preferably integrally formed metal stud 22 fixed to the first hinge arm 12, the metal stud 22 defining a stud axis coaxial with the hinge axis, and the metal stud 22 comprising a body 26 at least partially, optionally entirely, provided with a toothed periphery; a plastic slider 28; a resilient member that applies a force to the plastic slider 28 in a direction toward the axis of the stud to cause the plastic slider 28 to engage the toothed periphery. When the door, and therefore the second hinge arm 14, is subjected to an external force greater than a preset value, rotating about the pillar pin axis with respect to the vehicle body, and therefore the first hinge arm 12, the plastic slider 28 will slide along the toothed periphery, keeping engagement with the toothed periphery.

The body 26 of the metal stud 22, the plastic slider 28, and the resilient member are all enclosed in the casing 18 to protect the cooperation of the metal stud 22 and the plastic slider 28, among other things, from dust.

Since the metal stud 22 and the plastic slider 28 are made of two different materials, a metal material (e.g., steel) and a plastic material (e.g., polyvinyl chloride: PVC; polycarbonate: PC; polyethylene: PE, etc.), respectively, sliding the plastic slider 28 along the toothed periphery will not produce excessive sound, thereby reducing mechanical noise due to opening and closing of the door, and increasing the service life of the exemplary door hinge 10.

Optionally, the plastic slider 28 is tapered at one end that engages the toothed periphery to ultimately form a curved tip 30. Accordingly, the toothed periphery includes recesses 34 and protrusions 32 alternately arranged in the circumferential direction, the recesses 34 and protrusions 32 smoothly transition between each other, and the recesses 34 are closer to the pin axis than the protrusions 32. As the resilient member applies a force to the plastic slider 28 in a direction toward the pintle axis, the plastic slider 28 will tend to engage the recess 34 closer to the pintle axis. In the event that the second hinge arm 14 is not subjected to an external force (no person touching the door) or is subjected to an external force less than or equal to a preset value (when the door is open, the vehicle is on an incline or a breeze blows), the plastic slider 28 will be blocked by the protrusion 32 to remain engaged with the recess 34, so that the second hinge arm 14 and thus the door remains stationary or slightly rocked, i.e., the degree of opening and closing of the door relative to the vehicle body is maintained. When the force on the second hinge arm 14 is greater than a preset value (a person opens and closes the vehicle door) to rotate the second hinge arm 14 about the hinge axis relative to the first hinge arm 12, the plastic sliders 28 will slide with the second hinge arm 14 along the protrusions 32 and the recesses 34 alternately provided in the circumferential direction due to being restrained within the casings 18, in the process, the adjacent protrusions 32 successively block the plastic sliders 28, and the elastic member always exerts a force on the plastic sliders 28 in a direction toward the stud axis, which in combination increases the tactile sensation of opening and closing the vehicle door.

In order for the protrusion 32 to block the plastic slider 28 only to a certain extent, the profile of the recess 34 may be substantially complementary to the profile of the curved tip 30 of the plastic slider 28, while the profile of the protrusion 32 may be substantially identical to the profile of the curved tip 30 of the plastic slider 28 to facilitate the plastic slider 28 sliding along the recess 34 and the protrusion 32 in maintained engagement with the recess 34 and the protrusion 32. This is not essential and in practice the number and profile characteristics of the recesses 34 and projections 32 may be specifically set according to the actual requirements to adjust the amount of tactile sensation provided to open and close the door. For example, one of the recesses 34 and the protrusions 32 may have a larger circumferential spacing than the other of the recesses 34 and the protrusions 32.

In addition, the resilient member may be a coil spring 36, an air spring, or any resilient member that can continuously apply a force to the plastic slider 28 in a direction toward the axis of the stud, and the number of resilient members and the amount of force applied to the plastic slider 28 may be specifically set according to actual needs to further adjust the amount of tactile sensation provided to open and close the door.

For the coil spring 36, which is merely an example of an elastic member in fig. 3 and 4, one end of the coil spring 36 is received into a seat 38 fixed to the second hinge arm 14 and positioned in the housing 18, while the plastic slider 28 is provided with a notch 35 (shown in fig. 4) at an end opposite to the curved tip end 30 to receive the other end of the coil spring 36, so that the coil spring 36 is loaded against the second hinge arm 14 and the plastic slider 28 to apply a force to the plastic slider 28 in a direction toward the axis of the stud. Similarly, when the resilient member is an air spring, it may also be loaded against the first hinge arm 12 and the plastic slider 28 by being constrained in the housing 18.

With continued reference to fig. 4, shell 18 includes first and second openings, a line connecting the centers of the first and second openings coinciding with the pintle axis, and first and second sections 40, 42 of metal pintle 22 projecting axially from both ends of main body 26 passing through the first and second openings, respectively, wherein the diameters of first and second sections 40, 42 are set smaller than the diameters of the first and second openings, respectively, and the axial lengths of first and second sections 40, 42 along the pintle axis are set larger than the axial lengths of the first and second openings, respectively.

Referring to fig. 5, the first opening is defined by a first peripheral edge 44 of shell 18 and the second opening is defined by a second peripheral edge 46 of shell 18. To ensure the useful life of the door hinge 10, the hinge base 16 may further include a first bushing 48 secured around the first periphery 44 and a second bushing 50 secured around the second periphery 46. For example, first and second bushings 48, 50 are annular and transversely U-shaped in axial cross-section to fit around first and second peripheral edges 44, 46 in mating relation. First and second bushings 48, 50 are each made of a wear-resistant metallic material (e.g., various alloys, etc.) that is different from the hard metallic material from which shell 18 is made. First and second sections 40, 42 of metal pintle 22 pass through first and second bushings 48, 50, respectively, wherein the diameters of first and second sections 40, 42 are set smaller than the inner diameters of first and second bushings 48, 50, respectively, and the axial lengths of first and second sections 40, 42 along the pintle axis are set larger than the axial lengths of first and second bushings 48, 50, respectively. Thus, the first and second segments 40 and 42 present both radial and axial clearances with the first and second bushings 48 and 50, respectively. The radial and axial clearances can be dimensioned specifically according to the actual requirements, so that in the state of rotation of the second hinge arm 14 relative to the first hinge arm 12 about the hinge axis, the housing 18 and the plastic slider 28 and the elastic component enclosed in the housing 18 can rotate about the pin axis with the second hinge arm 14 relative to the metal stud 22, while the plastic slider 28 slides along the toothed periphery in engagement with the toothed periphery.

Hinge base 16 also includes a bolt 52 for easily removably securing metal stud 22, and thus hinge base 16, to first hinge arm 12. In particular, the first hinge arm 12 comprises a circumferential wall 56 defining an axial through hole 54, the axis of the axial through hole 54 being coaxial to the stud axis and the hinge axis in the condition in which the first hinge arm 12 is hinged together with the second hinge arm 14. The metal stud 22 comprises a third section 58 which projects axially from the first section 40 and a threaded bore 60 which extends at least through the third section 58 along the stud axis, i.e. the threaded bore 60 may additionally extend through the first section 40 as far as the main body 26. The diameter of the third section 58 is smaller than the diameter of the first section 40, i.e. in the presence of the threaded hole 60, the outer diameter of the third section 58 is smaller than the outer diameter of the first section 40. The third section 58 may pass through the axial through hole 54 such that the bolt 52 can be screwed into the threaded hole 60 through the axial through hole 54 opposite the third section 58.

To ensure that the axial clearance is not affected, the diameter of the axial through hole 54 is set to be greater than the diameter of the third section 58 and less than the diameter of the first section 40, and the diameter of at least a portion of the screw head of the bolt 52 is selected to be greater than the diameter of the axial through hole 54 such that as the screw of the bolt 52 is screwed into the threaded hole 60, the screw head abuts against one end of the circumferential wall 56 to push the other end of the circumferential wall 56 against the first section 40, thereby fixing the metal stud 22 to the first hinge arm 12, while the casing 18 enclosing the metal stud 22 can still rotate relative to the metal stud 22 about the stud axis. In addition, the axial through hole 54 may include a first hole portion having a diameter slightly larger than that of the third section 58 and a second hole portion having a diameter larger than that of the first hole portion and smaller than that of the screw head so that the third section 58 more easily passes through the axial through hole 54.

In assembling the vehicle door to the vehicle body, it may be desirable to disassemble the door hinge 10 to assemble the separate first hinge arm 12 to one of the vehicle door and the vehicle body and to assemble the second hinge arm 14 with the hinge socket 16 separate from the first hinge arm 12 to the other of the vehicle door and the vehicle body, and then hinge the first hinge arm 12 and the second hinge arm 14 together by the bolt 52. Alternatively, in a different workshop where a vehicle is assembled, it may be desirable to remove a door that has been assembled to the vehicle body from the vehicle body to facilitate installation of other door accessories on the door, and then reassemble the door to the vehicle body. In the present invention, by providing the bolt 52, the first hinge arm 12 and the second hinge arm 14 of the door hinge 10 can be easily detached to easily detach the door.

Optionally, the hinge base 16 further includes a washer 62 and the metal stud 22 further includes a fourth section 64 projecting axially from the second section 42, the fourth section 64 forming an annular groove with the second section 42 such that the washer 62 is retained in the annular groove against the second section 42. Washer 62 has an outer diameter greater than the diameter of the second opening such that washer 62, in cooperation with circumferential wall 56 of first hinge arm 12, prevents shell 18 from separating from metal stud 22 and maintains axial clearance of shell 18 from metal stud 22.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (10)

1. A vehicle door hinge (10) comprising a first hinge arm (12), a second hinge arm (14), and a hinge seat (16) hinging together the first hinge arm (12) and the second hinge arm (14), characterized in that the hinge seat (16) comprises:

a metal stud (22) fixed to the first hinge arm (12), the metal stud (22) defining a stud axis and comprising a main body (26) at least partially provided with a toothed periphery;

a plastic slider (28);

a resilient member applying a force to the plastic slider (28) in a direction toward the axis of the stud to cause the plastic slider (28) to engage the toothed periphery; and

a casing (18) fixed to the second hinge arm (14), the casing (18) enclosing the main body (26) of the metal stud (22), the plastic slider (28), and the elastic means,

wherein the plastic slider (28) is configured to slide along the toothed periphery in retaining engagement therewith in a state in which one of the first hinge arm (12) and the second hinge arm (14) is subjected to an external force greater than a preset value while rotating about the pin axis relative to the other of the first hinge arm (12) and the second hinge arm (14).

2. The door hinge (10) according to claim 1, wherein the toothed periphery includes recesses (34) and protrusions (32) alternately arranged in a circumferential direction, the recesses (34) being closer to the pin axis than the protrusions (32), wherein the plastic slider (28) is configured to engage with the recesses (34) in a state where one of the first hinge arm (12) and the second hinge arm (14) is not subjected to an external force or is subjected to an external force equal to or less than a preset value, and to slide along the recesses (34) and the protrusions (32) while keeping engagement with the recesses (34) and the protrusions (32) in a state where one of the first hinge arm (12) and the second hinge arm (14) is subjected to an external force greater than a preset value and is rotated about the pin axis with respect to the other of the first hinge arm (12) and the second hinge arm (14).

3. The vehicle door hinge (10) according to claim 1, wherein the elastic member includes a coil spring (36) or an air spring.

4. The vehicle door hinge (10) according to claim 1, wherein the hinge base (16) further includes a projection (20) integrally formed with the shell (18), the projection (20) being configured to abut against the first hinge arm (12) in a state where one of the first hinge arm (12) and the second hinge arm (14) is rotated to a preset angle about the pillar pin axis with respect to the other one of the first hinge arm (12) and the second hinge arm (14) to prevent the one of the first hinge arm (12) and the second hinge arm (14) from being rotated to more than the preset angle about the pillar pin axis with respect to the other one of the first hinge arm (12) and the second hinge arm (14).

5. The door hinge (10) according to any one of claims 1 to 4, wherein the housing (18) includes a first opening and a second opening, a line connecting a center of the first opening and a center of the second opening coincides with the pin axis, a first section (40) and a second section (42) of the metal pin (22) axially protruding from both ends of the main body (26) respectively pass through the first opening and the second opening, wherein diameters of the first section (40) and the second section (42) are respectively set smaller than the diameters of the first opening and the second opening, and axial lengths of the first section (40) and the second section (42) are respectively set larger than the axial lengths of the first opening and the second opening.

6. The door hinge (10) according to claim 5, wherein the first opening is defined by a first peripheral edge (44) of the shell (18) and the second opening is defined by a second peripheral edge (46) of the shell (18), and the hinge base (16) further comprises a first bushing (48) secured around the first peripheral edge (44) and a second bushing (50) secured around the second peripheral edge (46), the first and second sections (40, 42) passing through the first and second bushings (48, 50), respectively, wherein the first and second sections (40, 42) have a diameter that is set smaller than an inner diameter of the first and second bushings (48, 50), respectively, and the first and second sections (40, 42) have an axial length that is set larger than an axial length of the first and second bushings (48, 50), respectively.

7. The door hinge (10) according to claim 6, wherein the first bushing (48) and the second bushing (50) are both made of a wear resistant metal material.

8. The vehicle door hinge (10) according to claim 5, wherein the hinge base (16) further includes a bolt (52), the first hinge arm (12) includes a circumferential wall (56) defining an axial through hole (54), and the metal stud (22) includes a third section (58) projecting axially from the first section (40) and a threaded hole (60) extending through at least the third section (58) along the stud axis, the third section (58) passes through the axial through hole (54), and the bolt (52) is configured to pass through the axial through hole (54) opposite the third section (58) to be screwed into the threaded hole (60) until the circumferential wall (56) abuts against the first section (40).

9. The vehicle door hinge (10) according to claim 5, wherein the hinge base (16) further includes a washer (62), and the metal stud (22) further includes a fourth section (64) projecting axially from the second section (42), the fourth section (64) forming an annular groove with the second section (42) such that the washer (62) is retained in the annular groove against the second section (42).

10. The vehicle door hinge (10) according to claim 8, characterized in that one of the first hinge arm (12) and the second hinge arm (14) is configured to be fitted to a vehicle door, and the other of the first hinge arm (12) and the second hinge arm (14) is configured to be fitted to a vehicle body separately from the one of the first hinge arm (12) and the second hinge arm (14) in a state where the bolt (52) is detached.

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