JP4271629B2 - Arm type window regulator base plate - Google Patents

Description

  The present invention relates to a base plate for an arm type window regulator.

X arm type and single arm type arm type window regulators are well known.
For example, Japanese Patent Application Laid-Open No. 9-119261 describes an example of an X-arm type window regulator (see Patent Document 1).
Japanese Patent Application Laid-Open No. 2003-301660 describes an example of a single arm type window regulator (see Patent Document 2).
JP-A-9-119261. JP2003-301660A.

  FIG. 5 shows a conventional base plate used in an arm type window regulator. FIG. 3 shows an example of an X arm type window regulator, and FIG. 4 shows a main part (near the base plate) of FIG. In the window regulator of FIG. 3 (and FIG. 4), any of the conventional and the present invention base plates can be used as the base plate.

First, the X arm type window regulator will be briefly described.
As shown in FIG. 5, a circular through hole 29 is provided near one end portion (right end portion in FIG. 5) of the base plate 20, and a stepped pin 41 (FIG. 4) is provided in this circular through hole 29. Inserted and supported rotatably. Since the stepped pin 41 is engaged with the base end portion of the lift arm 50 (FIGS. 3 and 4) on the back side of the paper in FIG. 5 (one side of the claims), the stepped pin 41 rotates. As a result, the lift arm 50 also rotates together.
As shown in FIG. 3, a driven gear 60 is integrally fixed to the lift arm 50 at the base end portion of the lift arm 50 by welding or the like. The driven gear 60 is meshed with a pinion 92 provided on a handle shaft 91 (FIG. 3B) rotated by an operation handle (not shown), and is driven to rotate in accordance with a manual operation of the operation handle. The pinion 92 is accommodated on the paper surface side in FIG. 5 (the other surface side of the claims), but an opening 28 that communicates the front surface side and the back surface side is provided. When the driven gear 60 enters, the meshing with the pinion 92 is enabled.

A roller 51 is provided at the other end (upper right end in FIG. 3) of the lift arm 50, and this roller 51 is attached to a guide 70 provided at a bracket (not shown) at the lower end of a window glass (not shown). Engage and move horizontally.
A spindle 52 penetrating the lift arm 50 is rotatably provided at a central portion of the lift arm 50 (a portion where the lift arm 50 is engaged with the stepped pin 41 and the roller 51). . A first equalizer arm 55 extending in the direction of the guide 70 is fixed to one end of the spindle 52 (the back side in FIG. 3), and the other end (the front side in FIG. 3) A second equalizer arm 56 extending in the direction of the fixed guide 80 is fixed to the door body (not shown). That is, the first and second equalizer arms 55 and 56 are integrated via the spindle 52.
A roller 55 a that is engaged with the guide 70 and is movable in the horizontal direction is provided at the tip of the first equalizer arm 55. A roller 56 a that is engaged with the guide 80 and is movable in the horizontal direction is provided at the tip of the second equalizer arm 56.

A balance spring 31 (FIG. 4) is accommodated on the surface side (the other surface side of the claims) in FIG. 5 near one end portion (right end portion in FIG. 5) of the base plate 20. The balance spring 31 has an inner end portion 31B (FIG. 4) hooked on the slit portion of the stepped pin 41, an intermediate portion wound around the stepped pin 41 in a spiral shape, and an outer end portion 31A. Is latched by a latching portion 26 erected from the base plate 20. For this reason, an urging force is always applied to the lift arm 50 in the direction of lifting the window glass (not shown).
In the window regulator having such a configuration, when a handle (not shown) is operated to rotate the handle shaft 91 (FIG. 3B), the rotation is transmitted to the driven gear 60 via the pinion 92 and lift arm Rotate 50. As a result, the window glass is raised / lowered.

When the window glass rises to the top dead center in the X-arm type window regulator described above, the window regulator is in a restrained state, and therefore, in the vehicle width direction (in FIG. Force) is applied, and in particular, the force is concentrated in the vicinity of the base plate 20. That is, a so-called “tilt” is generated, and an excessive force is applied to the base plate 20.
However, the conventional base plate 20 shown in FIG. 5 is attached to an inner panel (not shown) at three locations. That is, the bolt hole 23c at the upper end and the bolt hole 23b at the lower end near the end supporting the lift arm 50 (one end of the claims), and the end supporting the pinion 92 (the other end of the claims). Are attached to an inner panel (not shown). In other words, the upper end portion 22d near the end portion (the other end portion of the claims) that supports the pinion 92 is not fixed to the inner panel. The reason is that the inner panel is the same as the motor-driven X-arm type window regulator, so the fourth part (the non-adhered part = the end part supporting the pinion 92 (the other end part of the claims)). This is because there is a circumstance that the mounting portion cannot be provided at the upper end portion 22d).
Since it is attached to the inner panel only in three places in this way, if the force concentrates near the base plate 20 due to the “tilting”, the excessive force twists the base plate 20 along the diagonal line connecting the bolt holes 23c to 23a. As a result, in the worst case, a crack is generated in the vicinity of the portion indicated by the symbol “CR” in FIG.
Even when the conventional base plate 20 is used for a single arm type window regulator, an excessive force is applied to the base plate 20 by the “tilting” in the same manner as described above, and in the worst case, the portion indicated by the symbol “CR” in FIG. Cracks will occur in the vicinity.

  The present invention has been made in view of the above circumstances, and does not change the configuration of the inner panel, and also does not change the mounting portion of the base plate (the mounting portion to the inner panel), thereby increasing the rigidity of the base plate with a simple configuration. Thus, it is an object of the present invention to prevent the base plate from cracking even if the force is concentrated by the above-described “tilting” in the restrained state.

The present invention is configured as the following [1] to [2].
[1] Configuration 1:
The base end of the lift arm is rotatably supported on one side near the one end, and the pinion engaged with the driven gear on the base end of the lift arm through the opening is supported on the other side near the other end. The upper and lower ends and the other end of the flat plate-like extended portion projecting outward from both edges of the groove, each having a groove-shaped cross-sectional shape in which the other surface side is a recess. A base plate body having a mounting portion to the inner panel at the lower end of the side ,
And a reinforcing plate which constitutes a cylindrical cross-section together with the grooves by being mounted on top so and so as to cover the groove to cover the extended portion of the base plate main body,
And is attached to the inner panel via the reinforcing plate at the upper end and the lower end near the one end and the lower end near the other end.
The base plate of the arm type window regulator.
[2] Configuration 2:
In configuration 1,
The reinforcing plate is locked to the lower end side of the base plate main body near the one end by a claw provided on one edge, and the other edge is positioned on the upper end of the base plate main body near the other end. Welded and attached to the base plate body,
The base plate of the arm type window regulator.

According to the first aspect of the present invention, the base end portion of the lift arm (50) is rotatably supported on one surface side near one end portion, and the driven gear (60) of the lift arm base end portion on the other surface side near the other end portion. And a pinion (92) that meshes with each other through an opening (28), has a groove-shaped cross-sectional shape in which the other surface side is a recess, and extends in a flat plate shape that projects outward from both edges of the groove. A base plate body (20) having attachment portions (23a to 23c) to the inner panel at the upper end and lower end near the one end of the installation portion (22) and the lower end near the other end, and the groove covering manner and the base plate main body and a reinforcing plate which constitutes a cylindrical cross-section together with the grooves by being mounted on top to cover the extended part (22) (20) (10), one end The upper end and lower end near the part and the above Since it is the base plate of the arm type window regulator that is attached to the inner panel via the reinforcing plate (10) at the lower end near the end, it can obtain a large rigidity with a simple configuration that forms a box-shaped cross section. Even if the force is concentrated by the “tilting” in the restrained state, the base plate body (20) can be prevented from cracking.
The invention of Configuration 2 is that in Configuration 1, the reinforcing plate (10) is locked to the lower end side of the base plate body (20) near the one end portion by a claw (15) provided at one edge portion. In addition, since the base plate of the arm type window regulator is attached to the base plate body by welding the other edge portion to the upper end side of the base plate body (20) near the other end portion, the effect of the configuration 1 is achieved. In addition, there is an effect that the reinforcing plate (10) does not fall off from the base plate body (20) before or during assembly to the window regulator assembly.

The X-arm type window regulator is the same as that described in the section “Problems to be Solved by the Invention”, and the description thereof is omitted here.
In the single-arm type window regulator as well, the vicinity of the base plate that is directly related to the gist of the present invention is the same as that described in the section “Problems to be solved by the invention”, and other parts are well known. Therefore, explanation is omitted.
Hereinafter, a description will be given focusing on differences from the conventional base plate.
FIG. 1 shows a base plate embodying the present invention. FIG. 1B is a front view of the base plate viewed from the reinforcing plate 10 side (inner panel side), and FIG. 2 is a front view of the reinforcing plate 10 in FIG. 1 as viewed from the same direction as FIG. 1B, and FIG. 2A is a side view of FIG.

The base plate shown in FIG. 1 includes a base plate main body 20 and a reinforcing plate 10 attached so as to overlap the base plate main body 20.
The configuration of the base plate body 20 is the same as that of the conventional base plate 20 described with reference to FIG. That is, a groove-shaped cross-sectional shape in which the side (the other side of the claims; the upper side of the paper in FIGS. 1 and 5) in which the pinion 92 and the balance spring 31 are accommodated is a recess. The groove type cross section is shown in FIGS. 5 (a) and 5 (c).
From the edge part which is the upper end part of the wall part 21 (21a-21c) of a groove | channel, the extending part 22 (22a-22d) is each projected and formed outside. Among the extending portions 22, the extending portions 22 a to 22 c are provided with bolt holes 23 a to 23 c that serve as attachment portions to the inner panel. The extended portion 22d at the upper end near the other end is not a mounting portion to the inner panel, and remains a flat plate.

The reinforcing plate 10 having a flat plate shape (see FIG. 1A) is attached to the extending portion 22 so as to overlap. That is, the claw 15 of the reinforcing plate 10 is hooked on the extended portion 22e near the end (one end of the claims) of the base plate main body 20 where the balance spring 31 is accommodated. A corresponding portion 12d of the reinforcing plate 10 is fixed to the extending portion 22d by welding.
Since it is fixed by welding in this way, the reinforcing plate 10 does not fall off the base plate body 20 before or during assembly to the window regulator assembly. Moreover, since it latches with the nail | claw 15, even if curvature generate | occur | produces with the heat of welding, backlash does not arise in the reinforcement plate 10 and the baseplate main body 20. FIG.

The through hole 11 provided in the reinforcing plate 10 is a hole for arranging the pinion 92 and the handle shaft 91. Further, the notch 16 that is largely opened at the right end in FIG. 2 is provided so as not to interfere with the mounting of the balance spring 31.
Further, the portions 12a to 12c of the reinforcing plate 10 shown in FIG. 2 indicate the portions corresponding to the extending portions 22a to 22c of the base plate main body 20, respectively, and 13a to 13c are holes corresponding to the bolt holes 23a to 23c. Indicates.

(B) is the front view which looked at the base plate of embodiment of this invention from the reinforcement plate 10 side (inner panel side), (a) is A sectional view taken on the line of (b). (B) is a front view of the reinforcing plate 10 in FIG. 1, (a) is a side view of the A view of (b). (A) is a front view of the X arm type window regulator provided with the base plate of FIG. 1, and (b) is a bottom view as viewed from B of (a). The principal part enlarged view which expands and shows the base plate vicinity in Fig.3 (a). (B) The front view which shows the conventional baseplate, (a) is A sectional view taken on the line of (b), (c) is C side view of (b).

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Reinforcement plate 12d Welding location 15 Claw 20 Base plate main body 21 (21a-21c) Groove wall part 22 (22a-22d) Extension part 31 from groove edge Balance spring

Claims (2)

The base end of the lift arm is rotatably supported on one side near the one end, and the pinion engaged with the driven gear on the base end of the lift arm through the opening is supported on the other side near the other end. The upper and lower ends and the other end of the flat plate-like extended portion projecting outward from both edges of the groove, each having a groove-shaped cross-sectional shape in which the other surface side is a recess. A base plate body having a mounting portion to the inner panel at the lower end of the side ,
And a reinforcing plate which constitutes a cylindrical cross-section together with the grooves by being mounted on top so and so as to cover the groove to cover the extended portion of the base plate main body,
And is attached to the inner panel via the reinforcing plate at the upper end and the lower end near the one end and the lower end near the other end.
The base plate of the arm type window regulator. In claim 1,
The reinforcing plate is locked to the lower end side of the base plate main body near the one end by a claw provided on one edge, and the other edge is positioned on the upper end of the base plate main body near the other end. Welded and attached to the base plate body,
The base plate of the arm type window regulator.

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