INTERIOR DOOR HANDLE ARRANGEMENT OF A VEHICLE, AND METHOD FOR PRODUCING AN INTERIOR DOOR HANDLE ARRANGEMENT

• US 20190316390A1
• Filed: 04/09/2019
• Published: 10/17/2019
• Est. Priority Date: 04/11/2018
• Status: Active Application

• Current Assignee: Illinois Tool Works Inc.
• Original Assignee: Illinois Tool Works Inc.
• Inventors: WILKE, Zsolt, FRIES, Elmar, CONTINI, Anna Lisa
• Application Number:
  US16/378,750
• Publication Number:
  US 20190316390A1
• Time in Patent Office: Days
• CPC Class Codes: B29C 33/16 using magnetic means
• CPC Class Codes: B29C 45/0001 characterised by the choice of material
• CPC Class Codes: B29C 45/0013 using fillers dispersed in the moulding material, e.g. metal particles
• CPC Class Codes: B29C 45/02 Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
• CPC Class Codes: B29C 45/16 Making multilayered or multicoloured articles B29C45/0062 takes precedence; feeding colouring materials into the injection unit B29C45/1816
• CPC Class Codes: B29C 45/1675 using exchangeable mould halves
• CPC Class Codes: B29C 45/1676 using a soft material and a rigid material, e.g. making articles with a sealing part
• CPC Class Codes: B29C 45/1679 applying surface layers onto injection-moulded substrates inside the mould cavity, e.g. in-mould coating [IMC] applying suface layers after ejection B29C45/0053
• CPC Class Codes: B29K 2505/00 Use of metals, their alloys or their compounds, as filler
• CPC Class Codes: B29K 2995/0008 Magnetic or paramagnetic
• CPC Class Codes: B29K 2995/0012 having particular thermal properties
• CPC Class Codes: B29L 2031/3029 Handgrips grips in general B29L2031/463
• CPC Class Codes: B29L 2031/463 Grips, handles handgrips as part of the body finishing of the vehicles B29L2031/3029
• CPC Class Codes: B60R 11/0217 for loud-speakers
• CPC Class Codes: B60R 2011/0021 Doors
• CPC Class Codes: B60R 2011/0045 with visible part, e.g. flush mounted
• CPC Class Codes: E05B 17/0004 Lock assembling or manufacturing making locksmith's goods of sheet metal B21D53/38; assembling in general B23P21/00
• CPC Class Codes: E05B 85/12 Inner door handles
• CPC Class Codes: E05B 85/16 a longitudinal grip part being pivoted at one end about an axis perpendicular to the longitudinal axis of the grip part
• CPC Class Codes: E05Y 2900/531 Doors

Abstract

An interior door handle arrangement of a vehicle, includes a housing and an actuating section which is arranged on the housing, wherein the housing and/or the actuating section have/has a carrier section made from a first plastic and a visible section made from another, second material which is connected to the carrier section in an integrally joined manner. A method for producing such an interior door handle arrangement is also provided.

Claims

1. An interior door handle arrangement of a vehicle, comprising a housing (10) and an actuating section (14) which is movably arranged on the housing (10), wherein the actuating section (14) has a carrier section (20) made from a first plastic and a decoration section (22) made from a second plastic which is connected to the carrier section (20) in an integrally joined manner, wherein the actuating section (14) has been produced using a two-component injection molding process.

2. The interior door handle arrangement as claimed in claim 1, wherein the carrier section (20) comprises bearing means (24) at a rear side of the actuating section (14), wherein in the unmounted but otherwise finished state of the actuating section (14), the first plastic is directly visible at a surface of the actuating section (14) at least at the bearing means (24).

3. The interior door handle arrangement as claimed in claim 1, wherein one of the carrier section (20) and the decoration section (22) has been produced in a first injection molding shot using a first mold half (31) and a second mold half (32) resulting in a first blank (41),

and wherein the respective other of the carrier section (20) and the decoration section (22) has been produced in a second injection molding shot onto the first blank (41) after a change of the first mold half (31) and/or the second mold half (32) resulting in a second blank (42), while the first blank remained in one of the first mold half (31) and the second mold half (32) until the second blank (42) was shot onto it.

4. The interior door handle arrangement as claimed in claim 1, wherein the second plastic forms at least one convex edge or at least one convex arcuate portion (28) of a surface of the actuating section (14) such that the second plastic extends towards a rear side of the actuating section (14).

5. The interior door handle arrangement as claimed in claim 4, wherein a portion of the surface of the rear side of the actuating section (14) is formed by the second plastic extending from a front side of the actuating section (14) towards the rear side of the actuating section (14) forming said at least one edge or arcuate portion (28).

6. The interior door handle arrangement as claimed in claim 5, wherein the portion of the second plastic extending from the front side of the actuating section (14) towards the rear side of the actuating section (14) forming said at least one edge or arcuate portion (28) has at least a width (23) of 5 mm.

7. The interior door handle arrangement as claimed in claim 6, wherein the portion of the second plastic extending from a front side of the actuating section (14) towards the rear side of the actuating section (14) forming said at least one edge or arcuate portion (28) extends over at least 25% of the border (26) between front side and rear side of the actuating section (14).

8. The interior door handle arrangement as claimed in claim 7, wherein at the location where the second plastic extends from the front side of the actuating section (14) towards the rear side of the actuating section (14) forming said at least one edge or arcuate portion (28), the actuating section (14) has or had

a first tool split line (29) at the border between the first plastic and the second and/or third plastic, and

a second tool split line (30) extending within the first plastic.

9. The interior door handle arrangement as claimed in claim 1, wherein the decoration section (22) has over at least 70% of its front side surface a constant thickness.

10. The interior door handle arrangement as claimed in claim 1, wherein the decoration section (22) has over at least 70% of its front side surface a thickness within the range of 0.5 mm and 3.5 mm

11. The interior door handle arrangement as claimed in claim 1, wherein the decoration section (22) has over at least 70% of its front side surface a surface roughness Ra smaller or equal to 2 μ

m.

12. The interior door handle arrangement as claimed in claim 1, wherein the decoration section (22), preferably visible section (22), consists of a plastic with a metallic look.

13. The interior door handle arrangement as claimed in claim 1, wherein the carrier section (20) consists at least in sections of a plastic with a cool-touch effect.

14. The interior door handle arrangement as claimed in claim 1, wherein a mineral filling or metal particles, in particular ferromagnetic metal particles, is/are embedded into the plastic of the carrier section (20).

15. The interior door handle arrangement as claimed in claim 1, wherein the decoration section (22), preferably visible section (22), consists of a plastic which is at least partially transparent for visible light.

16. The interior door handle arrangement as claimed in claim 15, wherein diffuser particles for diffusing visible light are embedded into the plastic which is at least partially transparent for visible light.

17. The interior door handle arrangement as claimed in claim 1, wherein a third section is connected to the carrier section (20) in an integrally joined manner.

18. The interior door handle arrangement as claimed in claim 17, wherein the third section consists of plastic with a cool-touch effect.

19. A method for producing an interior door handle arrangement, preferably as claimed in claim 14, wherein the interior door handle arrangement is produced in a multiple-component injection molding process.

20. The method as claimed in claim 19 for producing an interior door handle arrangement, wherein a magnet is applied to a surface of the carrier section (20) in the still flowable state of the plastic, with the result that the ferromagnetic metal particles approach the surface.

21. The method as claimed in claim 20, wherein the injection molding process comprises producing an actuating section (14) by at least the steps:

a) producing one of

a carrier section (20) of a first plastic, and

a decoration section (22) of a second plastic

in a first injection molding shot using a first mold half (31) and a second mold half (32) defining a first cavity (34) resulting in a first blank (41),

b) producing the respective other of the carrier section (20) and the decoration section (22) in a second injection molding shot onto the first blank (41) after a change of the first mold half (31) and/or the second mold half (32) in order to define a second cavity (35) resulting in a second blank (42), while the first blank (41) remains in one of the first mold (31) half and the second mold half (32) until the second blank (42) was shot onto it.

22. The method as claimed in claim 21, wherein the change of the first mold half (31) and/or the second mold half (32) comprises an exchange of one of the first mold half (31) and the second mold half (32) by a third mold half (33), while the first blank (40) remains in the non-exchanged tool half (31), wherein the second blank (42) is formed by at least the third mold half (33).

23. The method as claimed in claim 21, wherein the decoration section (22) is or is intended to be at least partially directly visible from the vehicle interior compartment and facing the vehicle interior compartment, wherein the actuating section (14) has a front side intended to face the vehicle interior compartment and a rear side intended to face away from the vehicle interior compartment, wherein in the one of the first cavity (34) and second cavity (35), which is intended to form the decoration section (22), the second plastic is injected

a) at a location which is to become a portion of the rear side of the actuating section (14), such that the second plastic flows along at least one concave mold edge or at least one concave arcuate mold portion (36) towards the front side of the actuating section (14) or

b) at a location which is hidden by a housing (10) in which the actuating section (14) is intended to be movably arranged.

24. The method as claimed in claim 23, wherein the second plastic flows around the at least one mold edge or the at least one arcuate mold portion (36) over at least a width (23) of 5 mm.

25. The method as claimed in claim 23, wherein the carrier section (20) is produced in the first injection molding shot and the decoration section (22) is produced in the second injection molding shot.

wherein in the one of the first mold half (31) and the second mold half (32), in which the first blank (41) remains until the second blank (41) was shot onto it, a first volume (31.1) defining a mold portion for a surface of the rear side of the actuating section (14) is masked in the first injection molding shot by a slider of that mold half (31) or by a protruding portion (32.1) of the respective other mold half, and

wherein the first volume (31.1) is unmasked after the first injection molding shot by retracting the slider or exiting the protruding portion (32.1) of the respective other mold half, such that for the second injection molding shot there is a passageway (32.2) from a surface of the rear side towards the front side allowing the second plastic to flow along the at least one mold edge or the at least one arcuate mold portion (36) towards the front side of the actuating section (14).

26. The method as claimed in claim 21, wherein a surface of the first or second cavity (34, 35), which is forming a front side of the decoration section (22), is over at least 70% of its surface polished such that the value of the surface roughness Ra is smaller than or equal to 2 μ

m.