Test jig for door glass and method for mounting the same

A test jig for a door glass includes a mounting block detachably mounted on a door panel of a vehicle door, and an adjustment block that has a vertical part to which a belt weatherstrip is detachably coupled and a horizontal part connected to the mounting block so as to be adjustable relative to the mounting block.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Korean Patent Application No. 10-2017-0066218, filed on May 29, 2017, in the Korean Intellectual Property Office, which application is hereby incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to a test jig for a door glass and a method for mounting the same.

BACKGROUND

As illustrated inFIG. 1, a door glass15that is movable in a vertical direction is installed in a vehicle door10, and door panels11and12of the vehicle door10are disposed on both sides of the door glass15. The door panels11and12include the inner panel11and the outer panel12.

An inner belt weatherstrip21is coupled to an upper end of the inner panel11, and an outer belt weatherstrip22is coupled to an upper end of the outer panel12. The outer belt weather strip22may have a hook24coupled to an opening12aof the outer panel12by a snap-fit connection.

The inner belt weatherstrip21and the outer belt weatherstrip22are configured to prevent moisture, foreign substances, and the like from infiltrating into the vehicle door10.

Meanwhile, worst-case scenario testing associated with mobility of the door glass is performed when a prototype vehicle body is manufactured.

When the worst-case scenario testing is performed, lips21aof the inner belt weatherstrip21in frictional contact with one surface of the door glass15or lips22aof the outer belt weatherstrip22in frictional contact with the other surface of the door glass15may generate various kinds of noises with the vertical movement of the door glass15. In the case where the gap g1between the inside of the door glass15and the inner panel11and the gap g2between the outside of the door glass15and the outer panel12do not accord with designed dimensions due to the manufacturing tolerance and deviation of the inner panel11and/or the outer panel12, the inner surface of the door glass15may be in frictional contact with the inner belt weatherstrip21or the outer surface of the door glass15may be in frictional contact with the outer belt weatherstrip22, and thus noise may be generated when the door glass15moves.

In the case where noise is generated with the movement of the door glass in the worst-case scenario testing for the door glass, relevant components (a door glass run, the inner belt weatherstrip, the outer belt weatherstrip, a door module, and the like of the vehicle door) for moving the door glass have to be repeatedly assembled and disassembled depending on the condition of the door panels after the inner panel, the outer panel, the inner belt weatherstrip, the outer belt weatherstrip, and the like are manufactured again or corrected.

As described above, an excessive amount of time is required to manufacture or assemble the relevant components in the worst-case scenario testing for the door glass, and therefore the reliability and convenience of the test for mobility of the door glass may be degraded.

SUMMARY

Embodiments of the present disclosure relate to a test jig for a door glass and a method for mounting the test jig, the test jig being configured to adjust the gap between a belt weatherstrip and the door glass in an easy and simple manner when mobility (lifting performance) of the door glass is tested, thereby making it possible to rapidly and conveniently test whether noise is generated by frictional contact between the door glass and the belt weatherstrip.

Embodiments of the present disclosure can solve the above-mentioned problems occurring in the related art while advantages achieved by the related art are maintained intact.

An aspect of the present disclosure provides a test jig for a door glass and a method for mounting the test jig. The test jig is configured to adjust the gap between a belt weatherstrip and the door glass in an easy and simple manner when mobility (lifting performance) of the door glass is tested. This feature makes it possible to rapidly and conveniently test whether noise is generated by frictional contact between the door glass and the belt weatherstrip.

According to an aspect of the present disclosure, a test jig for a door glass may include a mounting block detachably mounted on a door panel of a vehicle door and an adjustment block that has a vertical part to which a belt weatherstrip is detachably coupled and a horizontal part connected to the mounting block so as to be adjustable relative to the mounting block.

The mounting block may have one or more grooves mounted on an upper end of the door panel.

The mounting block may have one or more first fastening holes in communication with the grooves, and a first fixing bolt may be fastened to the one or more first fastening holes.

An upper surface of the mounting block may be formed to be flat in a horizontal direction, and the adjustment block may be detachably coupled to the flat upper surface of the mounting block.

The mounting block may have one or more second fastening holes, and the second fastening holes may be formed in a vertical direction. The adjustment block may be coupled to the upper surface of the mounting block by fastening a second fixing bolt to the second fastening holes.

The horizontal part of the adjustment block may have one or more fastening slots extending along a width direction of the vehicle door, and the second fixing bolt may be fastened to the fastening slots and the second fastening holes.

The vertical part of the adjustment block may have one or more openings to which hooks of the belt weatherstrip are coupled by a snap-fit connection.

The vertical part of the adjustment block may have two or more openings with different heights to which hooks of different types of belt weatherstrips are coupled by a snap-fit connection.

The mounting block may have a scale formed on at least one side surface of the mounting block.

The length of the mounting block may be longer than the length of the adjustment block.

The mounting block may have a first reference surface and a second reference surface perpendicular to each other. The first reference surface may be formed to be flat in a vertical direction, and the second reference surface may be formed to be flat in a horizontal direction.

According to another aspect of the present disclosure, a test jig for a door glass may include a mounting unit detachably mounted on a door panel of a vehicle door. A first adjustment block is connected to the mounting unit so as to be adjustable relative to the mounting unit along a first direction. A second adjustment block has a vertical part to which a belt weatherstrip is detachably coupled and a horizontal part connected to the first adjustment block so as to be adjustable relative to the first adjustment block along a second direction. The first and second directions may be perpendicular to each other.

The mounting unit may include a first mounting block having a contact surface making contact with the door panel and a second mounting block connected to the first mounting block.

The first mounting block may have a groove into which the first adjustment block is inserted to slide relative to the first adjustment block along the first direction.

A guide protrusion may be formed on a side of the first adjustment block, and a guide groove into which the guide protrusion is slidably inserted may be connected to the groove of the first mounting block.

A support lever may be attached to the second mounting block. One end of the support lever may be pivotally connected to the second mounting block, and the support lever may have, on an opposite end of the support lever, an attachment part that is to be attached to a side surface of the door panel.

According to another aspect of the present disclosure, a method can be used for mounting a test jig for a door glass. The test jig has a mounting block detachably mounted on a door panel of a vehicle door and an adjustment block that has a vertical part to which a belt weatherstrip is detachably coupled and a horizontal part connected to the mounting block so as to be adjustable relative to the mounting block. The method may include mounting the mounting block on an upper end of the door panel, coupling the belt weatherstrip to the vertical part of the adjustment block, and adjusting the gap between the vertical part of the adjustment block and the door glass and then coupling the horizontal part of the adjustment block to the mounting block.

According to the present disclosure, when mobility (lifting performance) of a door glass is tested, the gap between the door glass and a belt weatherstrip may be adjusted in an easy and simple manner without having to manufacture an inner panel, an outer panel, and the belt weatherstrip again according to the test result, and thus it is possible to rapidly and conveniently test whether noise is generated by frictional contact between the moving door glass and the belt weatherstrip.

DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS

Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numbers will be used throughout to designate the same or equivalent elements. In addition, a detailed description of well-known features or functions will be ruled out in order not to unnecessarily obscure the gist of the present disclosure.

Terms, such as “first”, “second”, “A”, “B”, “(a)”, “(b)”, and the like, may be used herein to describe elements of the present disclosure. Such terms are only used to distinguish one element from another element, and the substance, sequence, order, or number of these elements is not limited by these terms. Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as those generally understood by those skilled in the art to which the present disclosure pertains. Such terms as those defined in a generally used dictionary are to be interpreted as having meanings equal to the contextual meanings in the relevant field of art, and are not to be interpreted as having ideal or excessively formal meanings unless clearly defined as having such in the present application.

Referring toFIG. 2, a test jig50for a door glass, according to an embodiment of the present disclosure, may include a mounting block51detachably mounted on a door panel11,12of a vehicle door10and an adjustment block52connected to the mounting block51so as to be adjustable relative to the mounting block51.

As illustrated inFIG. 3, the mounting block51may have a bar shape, the length of which is greater than the width. The mounting block51may extend in the lengthwise direction of the vehicle door10and may be arranged along the lengthwise direction of the vehicle door10.

An upper surface of the mounting block51may be formed to be flat in a horizontal direction, and the adjustment block52may be connected to the flat upper surface of the mounting block51so as to be adjustable relative to the mounting block51.

The mounting block51may have one or more grooves59formed in a lower portion thereof. The mounting block51may be mounted on an upper end of each door panel11,12by the upper end of each door panel11,12fitting into the one or more grooves59of the mounting block51. The width and height of the one or more grooves59may be diversely designed without affecting the rigidity of the mounting block51.

As illustrated inFIGS. 2 and 4, the mounting block51may have one or more first fastening holes53aformed in the front surface thereof, and the first fastening holes53amay be formed in a horizontal direction to communicate with the grooves59. The axial direction of each first fastening hole53aand the axial direction of the grooves59may be perpendicular to each other. A threaded part55aof a first fixing bolt55may be fastened to each first fastening hole53ato secure the mounting block51to the upper end of each door panel11,12. When the threaded part55aof the first fixing bolt55is fastened to the first fastening hole53a, a distal end portion55cof the threaded part55amay press the upper end of each door panel11,12to secure the mounting block51to the upper end of each door panel11,12.

According to an embodiment, the plurality of first fastening holes53amay be spaced apart from one another and may be arranged to be symmetric with respect to the center of the mounting block51. As illustrated inFIG. 7, two first fastening holes53amay be formed in the mounting block51, and the respective first fastening holes53amay be located close to opposite end portions of the mounting block51, which makes it possible to firmly couple the mounting block51to the door panel11,12.

The first fixing bolt55may include the threaded part55aand a head55b, and the head55bmay have a cross-shaped groove or a straight groove formed therein. Accordingly, a worker may more easily and simply fasten or loosen the first fixing bolt55in a narrow space. Alternatively, the first fixing bolt55may be a headless bolt having no head and may have a hexagonal recess formed on an end portion thereof.

As illustrated inFIGS. 2 and 4, the mounting block51may have one or more second fastening holes53bformed in the upper surface thereof, and the second fastening holes53bmay be formed in the vertical direction. Second fixing bolts57may be fastened to the respective second fastening holes53bto secure the adjustment block52.

The second fastening holes53band the grooves59may be spaced apart from each other by a constant distance t, which makes it possible to ensure a sufficient distance by which the adjustment block52is movable. The distance t between the second fastening holes53band the grooves59may be diversely designed to ensure a distance by which the adjustment block52is movable without affecting the rigidity of the mounting block51.

According to an embodiment, the plurality of second fastening holes53bmay be spaced apart from one another and may be arranged to be symmetric with respect to the center of the mounting block51. As illustrated inFIG. 7, two second fastening holes53bmay be arranged so as to be spaced apart from each other, and the respective second fastening holes53bmay be located close to the opposite end portions of the mounting block51, which makes it possible to firmly couple the adjustment block52to the mounting block51without a movement. In particular, the second fastening holes53bmay be located closer to the opposite end portions of the mounting block51than the first fastening holes53a.

According to an embodiment, as illustrated inFIG. 5, the mounting block51may have a scale58, and the scale58may be formed on at least one side surface of the mounting block51. Accordingly, the position of the adjustment block52may be more accurately adjusted by using the scale58of the mounting block51.

As illustrated inFIG. 2, the adjustment block52may include a vertical part52ato which a belt weatherstrip21,22is detachably coupled and a horizontal part52bconnected to the mounting block51so as to be adjustable relative to the mounting block51.

The vertical part52amay extend in the vertical direction, and the belt weatherstrip21,22may be detachably coupled to an upper end of the vertical part52a. The vertical part52amay have one or more openings54to which hooks24of the outer belt weatherstrip22are coupled by a snap-fit connection. The positions, dimensions, and shapes of the hooks24may be varied depending on the shape or structure of the outer panel12. To correspond to the variation in the positions, dimensions, and shapes of the hooks24, the one or more openings54may have two or more openings54aand54bwith different heights. Accordingly, different types of hooks24of the outer belt weatherstrip22may be selectively coupled to the two or more openings54aand54bby a snap-fit connection. Since the two or more openings54aand54bare formed in communication with each other, the openings54aand54bmay be formed in a stepped structure.

The horizontal part52bmay extend in a horizontal direction, and the position of the horizontal part52bon the upper surface of the mounting block51may be adjusted along the width direction of the vehicle door10(see the direction W of the arrow inFIG. 2).

The horizontal part52bmay have one or more fastening slots56extending in the width direction of the vehicle door10(see the direction W of the arrow inFIG. 2), and as illustrated inFIGS. 6 and 7, the respective fastening slots56may be formed at the positions corresponding to the second fastening holes53bof the mounting block51.

According to an embodiment, the plurality of fastening slots56may be spaced apart from one another and may be arranged to be symmetric with respect to the center of the mounting block51. As illustrated inFIG. 6, two fastening slots56may be arranged so as to be spaced apart from each other, and the respective fastening slots56may be located close to the opposite end portions of the mounting block51, which makes it possible to firmly couple the adjustment block52to the mounting block51without a movement. In particular, the fastening slots56may be located closer to the opposite end portions of the mounting block51than the first fastening holes53a.

As the horizontal part52bof the adjustment block52moves on the upper surface of the mounting block51along the width direction of the vehicle door10(see the direction W of the arrow inFIG. 2), the position of the horizontal part52bmay be adjusted. If the position of the horizontal part52bis adjusted, the second fixing bolts57may be fastened to the fastening slots56of the horizontal part52band the second fastening holes53b, and thus the horizontal part52bmay be secured to the upper surface of the mounting block51. The position of the horizontal part52bof the adjustment block52may be accurately adjusted along the scale58of the mounting block51.

Each of the second fixing bolts57may have a threaded part57aand a head57b. The threaded parts57aof the second fixing bolts57may be fastened to the fastening slots56of the horizontal part52band the second fastening holes53b, and thus the horizontal part52bof the adjustment block52may be secured to the upper surface of the mounting block51.

The heads57bof the second fixing bolts57may have a diameter larger than the width of the fastening slots56. The heads57bof the second fixing bolts57may have a cross-shaped groove or a straight groove formed therein. Accordingly, a worker may more easily and simply fasten or loosen the second fixing bolts57in a narrow space.

Since the horizontal part52bis secured to the upper surface of the mounting block51by the second fixing bolts57after the adjustment of the position of the horizontal part52bon the upper surface of the mounting block51, the gap between the vertical part52aof the adjustment block52and a door glass15may be adjusted, and thus the contact gap between the belt weatherstrip21,22coupled to the vertical part52aand the door glass15may be adjusted.

As illustrated inFIG. 6, the mounting block51may have a length L1longer than the length L2of the adjustment block52, and thus the horizontal part52bof the adjustment block52may be stably seated on the upper surface of the mounting block51.

The mounting block51may have first and second reference surfaces61and62perpendicular to each other to verify perpendicularity between the vertical part52aand the horizontal part52bof the adjustment block52. The first reference surface61may be formed to be flat in the vertical direction, and the second reference surface62may be formed to be flat in a horizontal direction. Since the perpendicularity between the vertical part52aand the horizontal part52bof the adjustment block52may be varied while the test jig50is being used, it is possible to accurately verify the perpendicularity between the vertical part52aand the horizontal part52bof the adjustment block52by using the first and second reference surfaces61and62.

The mounting block51and the adjustment block52may be formed of metal or a synthetic resin having predetermined rigidity, and thus damage may be prevented when the mounting block51and the adjustment block52are mounted or separated.

According to an embodiment, the mounting block51may be formed of relatively light metal (such as aluminum), and the adjustment block52may be formed of a material (such as steel) that has higher rigidity than the mounting block51.

Meanwhile, the inner panel11and the outer panel12of the vehicle door10may have a structure curved along the lengthwise direction of the vehicle door10. Accordingly, the gap between the inner panel11and the door glass15and the gap between the outer panel12and the door glass15may differ from each other along the lengthwise direction of the vehicle door10. To correspond to the difference, a plurality of test jigs50may be mounted along the lengthwise direction of the vehicle door10. The plurality of test jigs50may have different lengths to correspond to the curvature of the vehicle door10in the lengthwise direction. Therefore, the plurality of test jigs50may be mounted to correspond to the curved structure of the vehicle door10.

As illustrated inFIG. 2, a pair of test jigs50for a door glass may be mounted to correspond to the inner belt weatherstrip21and the outer belt weatherstrip22disposed on opposite sides of the door glass15.

The pair of test jigs50for a door glass may be separately mounted on the inner panel11and the outer panel12, and the inner and outer belt weatherstrips21and22may be separately coupled to the respective test jigs50for a door glass.

The respective mounting blocks51may be separately secured to the inner and outer panels11and12by mounting the grooves59of the respective mounting blocks51on the upper ends of the inner and outer panels11and12and then fastening the first fixing bolts55to the first fastening holes53a.

The inner and outer belt weatherstrips21and22may be separately coupled to the upper ends of the respective adjustment blocks52, and the adjustment blocks52may be secured to the upper surfaces of the respective mounting blocks51by adjusting the positions of the adjustment blocks52on the upper surfaces of the mounting blocks51and then fastening the second fixing bolts57to the second fastening holes53b. Accordingly, the gaps C1and C2between the door glass15and the vertical parts52aof the respective adjustment blocks52may be appropriately adjusted.

Worst-case scenario testing for mobility of the door glass15may be performed in the state in which the pair of test jigs50for a door glass has been mounted on the inner and outer panels11and12of the vehicle door10as described above. As illustrated in Table 1 below, the gaps C1and C2between the door glass15and the vertical parts52aof the respective adjustment blocks52may be adjusted to test whether noise is generated by frictional contact between the door glass15and the belt weatherstrips21and22.

Table 1 shows results obtained by testing whether noise was generated by a vertical movement of the door glass15, after decreasing the gaps C1and C2between the door glass15and the vertical parts52aof the respective adjustment blocks52by −1 mm, −1.5 mm, −2.0 mm, −3.0 mm, and −3.5 mm with respect to their designed dimensions in the state in which a test jig in the related art and the test jig50of the present disclosure were applied.

As shown in Table 1 above, in the case of the test jig in the related art, noise was generated when the gaps C1and C2between the door glass15and the vertical parts52aof the respective adjustment blocks52were decreased by −2.0 mm to −3.5 mm, whereas in the case of the test jig50of the present disclosure, noise was generated when the gaps C1and C2between the door glass15and the vertical parts52aof the respective adjustment blocks52were decreased by −3.0 mm to −3.5 mm.

As described above, the test jig50of the present disclosure may additionally ensure a margin of about −1 mm for the gaps C1and C2between the door glass15and the vertical parts52aof the respective adjustment blocks52, compared to the test jig in the related art.

When worst-case scenario testing for mobility of the door glass15is performed, the gaps between the door glass15and the belt weatherstrips21and22may be easily adjusted by using the test jig50of the present disclosure, and thus the convenience and speed of the test may be enhanced.

In addition, a numerical limit on the gaps between the door glass15and the belt weatherstrips21and22may be quantified by using the test jig50of the present disclosure, and thus the reliability of the test may be significantly enhanced.

FIGS. 8 and 9illustrate a test jig100according to another embodiment of the present disclosure.

Referring toFIGS. 8 and 9, the test jig100according to another embodiment of the present disclosure may include a mounting unit no detachably mounted on the door panel11,12of the vehicle door10, a first adjustment block130connected to the mounting unit no so as to be adjustable relative to the mounting unit no in a first direction (see the direction L of the arrow inFIG. 8), and a second adjustment block140connected to the first adjustment block130so as to be adjustable relative to the first adjustment block130in a second direction (see the direction W of the arrow inFIG. 8).

The mounting unit no may include a first mounting block111and a second mounting block112connected to the first mounting block111.

The first mounting block111may have a contact surface113that makes contact with an upper end of the inner panel11or an upper end of the outer panel12. The first mounting block111may have, on one end thereof, a protrusion115protruding downward, and the contact surface113may be formed on the front side of the protrusion115so as to be flat in a horizontal direction.

The first mounting block111may have a groove120formed therein, and the first adjustment block130may be inserted into the groove120to slide relative to the first mounting block111. The position of the first adjustment block130in the groove120may be adjusted along the first direction (see the direction L of the arrow inFIG. 8). Here, the first direction may correspond to the lengthwise direction of the vehicle door10.

The first adjustment block130may have a guide protrusion131formed on one side thereof, and a guide groove122into which the guide protrusion131is slidably inserted may be connected to the groove120. Accordingly, the position of the first adjustment block130in the groove120may be accurately adjusted along the first direction (see the direction L of the arrow inFIG. 8) as the guide protrusion131is guided along the guide groove122.

After the position of the first adjustment block130is adjusted within the groove120of the first mounting block111along the first direction, a first fixing bolt171may be fastened through the first mounting block111, the second mounting block112, and the first adjustment block130, and thus the first adjustment block130may be secured to the first and second mounting blocks111and112.

The second mounting block112may be connected to the first mounting block111by the first fixing bolt171, and a support lever180may be attached to the second mounting block112. The support lever180may be pivotally connected, at one end thereof, to a pivot part118of the second mounting block112, and may have an attachment part182on an opposite end thereof. The one end of the support lever180may be pivotally connected to the pivot part118of the second mounting block112through a pivot pin181. The attachment part182may be detachably attached to a side surface of the door panel11,12.

After the one end of the support lever180pivots, the attachment part182of the support lever180may be attached to the side surface of the door panel11,12, and the support lever180may support the mounting unit no on the door panel11,12.

As illustrated inFIG. 9, the second adjustment block140may include a vertical part141to which the belt weatherstrip21,22is detachably coupled and a horizontal part142connected to the first adjustment block130so as to be adjustable relative to the first adjustment block130in the second direction (see the direction W of the arrow inFIG. 8). Here, the second direction W may correspond to the width direction of the vehicle door10, and the first direction L and the second direction W may be perpendicular to each other.

The vertical part141may extend in the vertical direction, and the belt weatherstrip21,22may be detachably coupled to an upper end of the vertical part141. The vertical part141may have one or more openings154to which the hooks24of the outer belt weatherstrip22are coupled by a snap-fit connection. The positions, dimensions, and shapes of the hooks24may be varied depending on the shape or structure of the outer panel12. To correspond to the variation in the positions, dimensions, and shapes of the hooks24, the one or more openings154may have two or more openings154aand54bwith different heights. Since the two or more openings154aand54bare formed in communication with each other, the openings154aand54bmay be formed in a stepped structure.

The horizontal part142may extend in a horizontal direction, and the position of the horizontal part142on the upper surface of the first adjustment block130may be adjusted along the second direction (see the direction W of the arrow inFIG. 8).

After the position of the horizontal part142on the upper surface of the first adjustment block130is adjusted along the second direction, a second fixing bolt172may be fastened to the horizontal part142and the first adjustment block130, and thus the horizontal part142of the second adjustment block140may be secured to the first adjustment block130.