Inboard handle device

Abstract

The inner handle assembly includes: a handle base mounted to the door panel of the vehicle; a locking lever rotatably supported on the handle base; a stop unit disposed in the handle base and limiting the rotation range of the locking lever; and an impact-absorbing unit disposed in the handle base and absorbing the impact generated due to contact between the locking lever and the stop unit.

Description

Technical Field

[0001] This invention relates to an inner handle device. Background Technology

[0002] In related technologies, interior handle devices (for vehicles) installed on the doors of vehicles such as automobiles are known.

[0003] The inner handle assembly includes, for example, a handle base attached to the door panel of the vehicle, a locking lever rotatably supported on the handle base, and a stop portion disposed on the handle base and limiting the rotation range of the locking lever.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: JP-UM-H06-79975

[0007] When the door is locked or unlocked using the locking lever, the locking lever contacts the stop, generating an impact. The vibration from this impact is transmitted to the door panel of the vehicle via the handle base, and the sound is amplified at this time. Since the amplified sound may be perceived as abnormal by vehicle occupants, it is desirable to minimize the amplified sound as much as possible. Summary of the Invention

[0008] According to embodiments of the present invention, the impact noise (shock noise) generated in the inner handle device when locking or unlocking the door by means of the locking lever can be reduced.

[0009] Solutions to technical problems

[0010] According to an embodiment of the present invention, the inner handle assembly includes a handle base attached to the door panel of a vehicle, a locking bar configured to be rotatably supported on the handle base, a stop portion disposed on the handle base and configured to limit the rotation range of the locking bar, and an impact absorbing portion disposed on the handle base and configured to absorb the impact generated by the contact between the locking bar and the stop portion.

[0011] Advantages of the invention

[0012] According to an embodiment of the present invention, the inner handle device can reduce the impact noise (shock noise) generated when locking or unlocking the door by means of the locking lever. Attached Figure Description

[0013] Figure 1 This is a front view of the inner handle device according to an embodiment of the present invention;

[0014] Figure 2 This is a rear view of the inner handle device according to an embodiment of the present invention;

[0015] Figure 3 It is along Figure 1 A cross-sectional view taken by line AA in the middle;

[0016] Figure 4 It is along Figure 1 The cross-sectional view taken by line BB in the middle (showing the unlocked state);

[0017] Figure 5 yes Figure 3 A magnified view of the main parts;

[0018] Figure 6 yes Figure 4 A magnified view of the main parts;

[0019] Figure 7 This is a front view of a single handle base;

[0020] Figure 8 This is a rear view of a single handle base;

[0021] Figure 9 This is an enlarged perspective view of the main part of the handle base as seen from the front.

[0022] Figure 10 This is an enlarged perspective view of the main part of the handle base as seen from the rear. Detailed Implementation

[0023] In the following, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0024] like Figures 1 to 10 As shown, the interior handle assembly 10 includes a handle base 11, an operating handle 12, and a locking lever 13. The interior handle assembly 10 is fixed to the inner panel 14 of the door panel constituting the vehicle and is arranged to partially protrude from the door trim panel (not shown) facing the interior of the vehicle. A Bowden wire (not shown) disposed inside the door panel is connected to the interior handle assembly 10. The Bowden wire (not shown) includes an outer tube having a tubular shape and an inner wire inserted into the outer tube.

[0025] The handle base 11 is formed by injection molding of, for example, a synthetic resin material. The handle base 11 includes a shaft support hole 15 formed by a through hole on one side, and an operating recess 16 adjacent to the shaft support hole 15 and having a concave shape. At the edge portion of the shaft support hole 15 of the handle base 11, a covering edge 17 covering the base portion of the operating handle 12 and the locking lever 13 extends in the shaft support hole 15 toward the operating recess 16, so that the internal structure of the door panel is not visible to the occupant.

[0026] The shaft support hole 15 is formed in a roughly quadrilateral shape, wherein Figure 1 and Figure 2The upper part is shorter than the lower part. A support beam 18 is formed in the shaft support hole 15 to divide the shaft support hole 15 into an upper and lower portion. The support beam 18 has... Figure 1 and Figure 2 Two support beam shapes extend in the left-right direction. Furthermore, the handle-side support shaft (not shown) and the locking-side support shaft 19 are arranged to bridge and support between the support beam 18 and the peripheral edge of the shaft support hole 15. The handle-side support shaft and the locking-side support shaft 19 are arranged parallel to each other in the vertical direction of the vehicle. Additionally, a pair of tube holders 20, 20 are provided at one end of the shaft support hole 15. The tube holders 20, 20 respectively hold the end of the outer tube of the Bowden cable on the operating handle 12 side and hold the Bowden cable on the locking lever 13 side.

[0027] A fixing part 22 formed by a through hole is provided on the bottom surface 21 of the operating recess 16. This is achieved by using a fixing screw 23 (see...) Figure 4 Insert the fixing part 22 and screw the fixing screw 23 onto the inner plate 14, and the inner handle device 10 is fixed to the inner plate 14.

[0028] Furthermore, a plurality of retaining holes 24 (located in two positions in the illustrated example) passing through the bottom surface 21 are arranged on the bottom surface 21 of the operating recess 16. Retaining claws or resilient claws provided on a decorative plate (not shown) are inserted into and engaged with these retaining holes 24, and the decorative plate is arranged and secured to the operating recess 16.

[0029] A decorative panel (not shown) is arranged to cover the operating recess 16 from the front side of the inner handle assembly 10. By arranging and securing the decorative panel to the operating recess 16, the fixing screws 23 mounted on the operating recess 16 are covered, making the fixing part 22 and the fixing screws 23 invisible to the occupant.

[0030] The operating handle 12 is rotatably supported on the handle base 11 and is formed by injection molding of, for example, a synthetic resin material. In this embodiment, the operating handle 12 is formed in a so-called bar shape and is electroplated with chromium or the like. The shape of the operating handle 12 is not limited to a bar shape and can be other shapes, such as a so-called ring. Furthermore, the surface treatment of the operating handle 12 is not limited to electroplating and can be a coating, such as a metallic coating.

[0031] In the operating handle 12, a handle shaft support 25, located on the base end side serving as a rotation support point, is rotatably supported in the shaft support hole 15 of the handle base 11 via a handle side support shaft. Furthermore, in the operating handle 12, a grip portion 26, formed on the end side and operated when the occupant opens the door, is biased and held in the operating recess 16 by a coil spring 27. A handle side line retainer (not shown) is arranged on the handle shaft support 25 of the operating handle 12, and the end of the inner line of the Bowden line on one side of the operating handle 12 is attached to the handle side line retainer.

[0032] The locking lever 13 is rotatably supported on the handle base 11 and is formed by injection molding of, for example, a synthetic resin material. The locking lever 13 is also called a locking knob and is arranged on the handle base 11 near (adjacent to) the operating handle 12.

[0033] Similar to the operating handle 12, in the locking lever 13, a locking shaft support 28, which serves as a rotation support point, is rotatably supported in the shaft support hole 15 of the handle base 11 via a locking side support shaft 19. Furthermore, a locking side wire retaining portion 29 is arranged in the locking shaft support 28 of the locking lever 13, and the end of the inner wire of the Bowden wire on one side of the locking lever 13 is connected to the locking side wire retaining portion 29.

[0034] like Figures 3 to 6 As shown, the locking lever 13 includes a locking-side stop ridge 30 formed corresponding to the locked position (locked position) and an unlocking-side stop ridge 31 formed corresponding to the unlocked position (unlocked position). Furthermore, the locking lever 13 includes an operating ridge 32. When an occupant operates the operating ridge 32 with their finger, the locking lever 13 can... Figure 3 and Figure 5 The locking side rotation limit shown is Figure 4 and Figure 6 Rotate between the unlocked side rotation limits shown.

[0035] like Figure 5 As shown, when the locking lever 13 is in the locked position, the locking side stop 30 abuts against the locking side stop 33 (described below) formed on the handle base 11 to limit the locking side rotation limit of the locking lever 13.

[0036] When the locking lever 13 is from Figure 5 Rotate to the state shown as Figure 6 When in the unlocked position shown, the unlocked side stop ridge 31 abuts against the unlocked side stop 34 (described below) formed on the handle base 11 to limit the unlocked side rotation limit of the locking lever 13.

[0037] The inner handle device 10 includes a stop part 35 disposed on the handle base 11 and limiting the rotation range of the locking lever 13, and an impact absorbing part 36 disposed on the handle base 11 and absorbing the impact generated by the contact between the locking lever 13 and the stop part 35.

[0038] The following section will describe specific structural examples of the impact absorption section 36 and the stop section 35.

[0039] like Figures 3 to 10 As shown, a partition wall 37 is arranged on the handle base 11 at a position between the shaft support hole 15 and the operating recess 16 to separate the shaft support hole 15 and the operating recess 16. Furthermore, an impact-absorbing wall (elastic portion) 38 is arranged on the handle base 11 in a manner spaced apart from the partition wall 37 (which forms part of the peripheral edge of the shaft support hole 15 of the handle base 11). A slit 39 is formed between the partition wall 37 and the impact-absorbing wall 38 on the handle base 11, and the partition wall 37 and the impact-absorbing wall 38 are connected at their ends on the inner plate 14 side by a connecting portion 40.

[0040] The wall thickness T1 of the impact-absorbing wall portion 38 is formed to be thinner than the wall thickness T2 of the partition wall portion 37, which constitutes part of the peripheral edge of the shaft support hole 15 of the handle base 11 (see...). Figure 5 and Figure 6 This is because by allowing the impact-absorbing wall 38 to bend slightly when it comes into contact with (collides with) the locking rod 13, the vibration is attenuated and the impact is absorbed through a small deflection deformation. Cutouts 41 are provided at the partition wall 37 and the impact-absorbing wall 38 of the shaft support hole 15 to prevent interference. Figure 1 The operating handle 12 in the initial position shown (see...) Figure 7 ).

[0041] The impact-absorbing portion 36 includes a first protruding piece (elastic portion) 42 that protrudes from the impact-absorbing wall portion 38 and extends into the shaft support hole 15, and a locking-side stop (locking-side first stop) 33 that defines the locking-side rotation limit of the locking lever 13 is formed on the first protruding piece 42 (see Figure 5 The first protruding piece 42 (locking-side stop 33) extends in a direction approximately orthogonal to the impact-absorbing wall portion 38. Furthermore, to ensure a certain degree of rigidity for the locking-side stop 33, the first protruding piece 42 does not have a fully cantilevered shape, and one end of it is connected to the wall portion 45, which forms part of the peripheral edge of the shaft support hole 15 (see...). Figure 9 and Figure 10 ).

[0042] The first protruding piece 42 continuously forms the end opposite to the end of the impact-absorbing wall 38 that is connected to the connecting part 40 (see...). Figures 3 to 5This is because by making the vibration propagation path from the stop part 35 to the inner plate 14 as circuitous as possible, the vibration generated in the stop part 35 is difficult to be transmitted from the handle base 11 to the inner plate 14.

[0043] The thickness T3 of the first protruding piece 42 is formed to be thinner than the wall thickness T1 of the impact-absorbing wall 38 (see...). Figure 5 And, for example, about 0.5 mm to 1.0 mm. This is because by allowing the first protruding piece 42 to bend slightly when it abuts (collides) with the locking side stop ridge 30 of the locking lever 13, vibration is attenuated and impact is absorbed by small deflection deformation.

[0044] The impact-absorbing portion 36 includes a second protruding portion (elastic portion) 44 that protrudes from and extends from the first protruding portion 42. An auxiliary stop (second stop) 43 is formed on the second protruding portion 44, which inhibits rotation of the locking lever 13 when a rotational force exceeding the rotation range (locking-side rotation limit) is applied to the locking lever 13. The extending direction of the second protruding portion 44 (auxiliary stop 43) is set at an angle approximately orthogonal to the first protruding portion 42. Furthermore, to ensure a certain degree of rigidity of the auxiliary stop 43, the second protruding portion 44 does not have a completely cantilevered shape, and one end of it is connected to a wall portion 45 that forms part of the peripheral edge of the shaft support hole 15 (see...). Figure 9 and Figure 10 ).

[0045] Similar to the first protruding piece 42, the thickness T4 of the second protruding piece 44 is formed to be thinner than the wall thickness T1 of the impact-absorbing wall portion 38 (see...). Figure 5 ), and for example, about 0.5mm to 1.0mm. This is because by allowing the second protruding piece 44 to bend slightly when it abuts (collides) with the locking side stop ridge 30 of the locking lever 13, vibration is attenuated and impact is absorbed by small deflection deformation.

[0046] Although the auxiliary stop 43 is provided at the impact absorption part 36 in this embodiment, the auxiliary stop 43 may be provided at a part different from the impact absorption part 36.

[0047] On the other hand, an unlocking-side stop (unlocking-side first stop) 34, which limits the unlocking-side rotation limit of the locking lever 13, is formed on the impact-absorbing wall portion 38 (see...). Figure 6 As described above, the wall thickness T1 of the impact-absorbing wall portion 38 is formed to be thinner than the wall thickness T2 of the partition wall portion 37 that constitutes part of the peripheral edge of the shaft support hole 15 of the handle base 11 (see...). Figure 5 and Figure 6 This is because by allowing the impact-absorbing wall 38 to bend slightly when it comes into contact with (collides with) the locking rod 13, the vibration is attenuated and the impact is absorbed by the small deflection deformation.

[0048] The operational effects of this embodiment will be described below.

[0049] (1) The inner handle device 10 includes a handle base 11 attached to the door panel (inner panel 14) of the vehicle, a locking bar 13 rotatably supported on the handle base 11, a stop part 35 provided on the handle base 11 and limiting the rotation range of the locking bar 13, and an impact absorbing part 36 provided on the handle base 11 and absorbing the impact generated by the contact between the locking bar 13 and the stop part 35.

[0050] According to the inner handle device 10, the impact absorption part 36 can absorb the impact generated by the contact (collision) between the locking lever 13 and the stop part 35, and reduce the impact sound (impact sound) generated when the locking lever 13 locks or unlocks the door.

[0051] (2) The impact absorption part 36 includes an impact absorption wall part 38 arranged separately from the overall wall part (partition wall part 37) of the handle base 11.

[0052] By constructing the shock-absorbing part 36 in this way, the vibration propagation path from the stop part 35 to the inner plate 14 can be as circuitous as possible, and the vibration generated in the stop part 35 can be made difficult to be transmitted from the handle base 11 to the inner plate 14.

[0053] (3) The impact-absorbing portion 36 includes a first protruding piece 42 that protrudes from and extends from the impact-absorbing wall portion 38. The stop portion 35 includes a locking-side stop 33 that defines the locking-side rotation limit of the locking lever 13, and the locking-side stop 33 is formed on the first protruding piece 42 of the impact-absorbing portion 36.

[0054] By constructing the shock absorber 36 in this way, vibrations generated when the locking side stop ridge 30 of the locking lever 13 is attenuated and absorbed.

[0055] (4) The stop part 35 includes an unlocking side stop 34 that defines the unlocking side rotation limit of the locking lever 13, and the unlocking side stop 34 is formed on the impact absorption wall part 38 of the impact absorption part 36.

[0056] By constructing the shock absorber 36 in this way, vibrations generated when the locking lever 13 is pressed against the unlocking side stop ridge 31 can be attenuated and absorbed.

[0057] (5) The stop part 35 includes an auxiliary stop 43, which inhibits the rotation of the locking lever 13 when a rotational force exceeding the rotation range is applied to the locking lever 13.

[0058] By constructing the stop part 35 in this way, the auxiliary stop part 43 can be used as a stop even when the handle base 11 is bent and deformed.

[0059] Incidentally, although the inner handle device of the present invention has been described by way of example with the above embodiment, the present invention is not limited to this embodiment, and various other embodiments may be adopted without departing from the spirit of the present invention.

[0060] This application is based on Japanese patent application filed on May 25, 2018 (Japanese Patent Application 2018-100189), the contents of which are incorporated herein by reference.

[0061] List of reference numerals

[0062] 10. Inner handle device

[0063] 11 Handle base

[0064] 13 Locking lever

[0065] 33 Locking-side stop (first locking-side stop)

[0066] 34. Unlocking side stop (first stop on the unlocking side)

[0067] 35 Stopping Part

[0068] 36 Impact Absorbing Section

[0069] 37. Partition wall section (overall wall section)

[0070] 38 Impact-absorbing wall section (elastic section)

[0071] 42 First protruding part (elastic part)

[0072] 43. Auxiliary stop (second stop)

[0073] 44 Second protruding part (elastic part)

Claims

1. An inner handle device, comprising: Handle base, which is attached to the door panel of the vehicle; A locking lever is configured to be rotatably supported on the handle base; A stop portion, which is disposed on the handle base and configured to limit the rotation range of the locking lever; and An impact-absorbing part is provided on the handle base and configured to absorb the impact generated by the contact between the locking rod and the stop part. The impact-absorbing portion includes an impact-absorbing wall portion arranged separately from the overall wall portion of the handle base, the impact-absorbing wall portion being configured to bend when it abuts the locking lever to absorb impact. The first wall thickness of the impact-absorbing wall is formed to be thinner than the second wall thickness of the overall wall portion that constitutes part of the peripheral edge of the shaft support hole of the handle base.

2. The inner handle device according to claim 1, wherein The impact-absorbing portion includes a first protruding piece that protrudes and extends from the impact-absorbing wall portion, and The stop portion includes a locking-side stop that defines the locking-side rotation limit of the locking lever, and the locking-side stop is formed on the first protruding piece of the impact-absorbing portion.

3. The inner handle device according to claim 1 or 2, wherein The stop portion includes an unlocking-side stop that defines the unlocking-side rotation limit of the locking lever, and the unlocking-side stop is formed on the impact-absorbing wall portion of the impact-absorbing portion.

4. The inner handle device according to claim 1 or 2, in, The stop part includes an auxiliary stop that inhibits the rotation of the locking lever when a rotational force exceeding the rotation range is applied to the locking lever.

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