JPH07229363A - Window glass elevating device for vehicle - Google Patents

Abstract

PURPOSE:To simplify a structure and reduce the occurrence of a trouble by rotatably supporting a ball screw body on a vehicle body at both upper and lower end sections, rotating the ball screw body with a motor and screwing the slider of a glass bracket to the ball screw body. CONSTITUTION:A ball screw body 2 is rotatably supported on a vehicle body at upper and lower end sections. Thereafter, a glass bracket 31 for supporting window glass 40 is screwed to the ball screw body 2. Then, a motor 17 is driven to rotate the ball screw body 2. As a result, the bracket 31 travels along the ball screw body 2, thereby causing the window glass 40 to move in a vertical direction. Furthermore, when the bracket 31 reaches the lower travel range end thereof, a slider 38 comes to collide with a stopper 29. According to this construction, a structure can be simplified, inexpensiveness can be ensured and the occurrence of a trouble can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel vehicle window glass lifting device. In detail, it is intended to provide a novel vehicle window glass lifting device having a simple structure.

[0002]

2. Description of the Related Art In a vehicle, for example, an automobile, a window glass lifting device called a power window regulator is provided.

Conventional window glass lifting devices for vehicles include a so-called wire type in which a wire is driven by a motor and a ball type in which a so-called ball-shaped ball is driven.

[0004]

However, each of the conventional wire type and ball type has a problem that the number of parts is large, the structure is complicated, and there are many failures.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, a vehicle window glass lifting device according to the present invention includes a ball screw member rotatably supported by a vehicle body at an upper end portion and a lower end portion, and the ball screw. It is composed of a motor for rotating the body and a slider for screwing the ball screw body and supporting the window glass.

[0006]

Therefore, in the vehicle window glass lifting device of the present invention, the number of constituent parts is small and the structure is simple.
It has the advantages that it is inexpensive and has few failures.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of a vehicle window glass lifting device according to the present invention will be described below with reference to the illustrated embodiments. In the illustrated first embodiment, the present invention is applied to an elevating device for a window glass of an automobile door.

Reference numeral 2 denotes a ball screw body, which is made of an elastic synthetic resin such as nylon or polyacetal or a composite material into which a reinforcing material is inserted.

The ball screw body 2 has two thread grooves 3L and 3R formed in the portion excluding the upper end portion and the lower end portion thereof.
The spiral grooves 3L and 3R are formed at the same pitch and shifted by exactly a half pitch, and the positions in the axial direction of the ball screw body 2 are the same at positions separated from each other by 180 degrees.

A connecting portion 4 is formed at the lower end of the ball screw body 2. The connecting portion 4 is composed of a fitting shaft 5 located at the center and having a diameter smaller than that of the thread groove forming portion, and engaging projections 6 and 6 located on the opposite side with the fitting shaft 5 interposed therebetween. The engagement projections 6, 6 are formed in a fan shape whose outer peripheral portion has a large shape when viewed in the axial direction of the ball screw body 2.

A supported portion 7 having a small diameter is formed immediately above the connecting portion 4, and a supported portion 8 having a small diameter is also formed at the upper end portion. A retaining head 9 having a diameter larger than that of the supported portion 8 is formed at the upper end of the supported portion 8 at the upper end.

Reference numeral 10 denotes a damper formed of an elastic material, for example, a rubber material such as neoprene rubber, and has a ring shape whose axial length is substantially equal to the axial length of the engaging projections 6 of the ball screw body 2. It is composed of a main portion 11 and partitions 12, 12, ... Which protrude toward the center from four positions on the inner peripheral surface of the main portion 11 that are equally spaced apart. Then, the fitting shaft 5 of the ball screw body 2 is fitted and inserted in the central portion of the damper 10,
Further, in the fan-shaped space divided by the partitions 12, 12, ...
The engagement protrusions 6, 6 are separately fitted in one space. Then, in this state, the lower half part of the fitting shaft 5 of the ball screw body 2 projects downward from the damper 10.

Reference numeral 13 denotes a worm wheel made of a synthetic resin such as nylon or polyacetal, which has a thick disk shape and a gear portion 14 having gear teeth formed on its outer peripheral surface, and a center of an upper surface of the gear portion 14. Engagement protrusions 1 in a fan shape having a planar shape protruding from portions located on opposite sides of each other.
It consists of 5 and 15. And this warm wheel 1
A center hole 16 is formed at 3.

The engaging projections 15 and 15 of the worm wheel 13 are divided into the partition pieces 12 and 12 of the damper 10.
Of the fan-shaped spaces divided by .., they are separately fitted into two spaces located on the opposite sides of each other with the remaining center of the engagement projections 6 of the ball screw body 2 fitted therebetween. The fitting shaft 5 of the ball screw body 2 is inserted into the center hole 16 of the worm wheel 13.

Reference numeral 17 is a motor fixed to a structure (not shown) of a vehicle door, and 18 is a gear case thereof. A worm (not shown) is housed in the gear case 18, and the worm is connected to the output shaft of the motor 17.

Numerals 19 and 19 are brackets having semicircular notches 20 and 20 on their straight edges. The notch 2
Extending portions 21 and 21 extending in the axial direction are formed at 0 and 20, and folding-back portions 22 and 22 that are folded outward from the lower ends of the extending portions 21 and 21 are formed. The axial lengths of the extending portions 21, 21 are the same as or slightly smaller than the axial length of the supported portion 7 below the ball screw body 2.

Thus, the brackets 19 and 19 have their edges with the notches 20 and 20 formed so as to sandwich the supported portion 7 on the lower side of the ball screw body 2 from both sides. It is fixed to the upper surface of the gear case 18 by screwing or the like. The diameter of the hole formed by abutting the notches 20, 20 of the brackets 19, 19 is formed slightly larger than the outer diameter of the supported portion 7 of the ball screw body 2, so that the bracket 1
It is rotatable with respect to 9 and 19, but cannot be moved in the axial direction. In addition, as described above, the ball screw body 2
The gear portion of the worm wheel 13 connected to the lower end of the gear wheel meshes with a worm (not shown) in the gear case 18. Therefore, when the motor 17 is driven, the ball screw body 2 is rotated. Then, between the engagement protrusions 15 and 15 of the worm wheel 13 and the engagement protrusions 6 and 6 of the ball screw body 2, the partitions 12, 12, ...
• is interposed, so that the unnatural movement of one is prevented from being transmitted to the other by buffering during this period.

Reference numeral 23 is a bracket which supports the upper end of the ball screw body 2, and is composed of a main metal fitting 24 and an auxiliary metal fitting 25.

The main metal fitting 24 is formed by bending a strip-shaped metal plate, has a pressing portion 26 curved in a semicircular shape at the center, and has mounting portions 27, 27 having stud screws at both ends. There is. The auxiliary metal fitting 25 has a pressing portion 28 that is curved in a semicircular shape at the center thereof.

Therefore, the main metal fitting 24 and the auxiliary metal fitting 25 of the bracket 23 are superposed so as to sandwich the supported portion 8 at the upper end of the ball screw body 2 by the pressing portions 26 and 28 of each other, and in that state, they are welded to each other. 24 and 25 are combined. As a result, the bracket 23 is attached to the ball screw body 2
It is attached to the supported portion 8 at the upper end of the ball screw 2, and the retaining head 9 prevents the ball screw body 2 from falling off.

Therefore, the bracket 23 is attached to the mounting portion 2 thereof.
It is fixed to the door structure by 7, 27, and the upper end of the ball screw 2 is rotatably supported by the door structure.

Numeral 29 is a stopper, which is formed of an elastic body such as rubber, is formed in a substantially annular shape, and has a central hole 29a.
Has a size such that the ball screw body 2 can be inserted therethrough. Further, notches 30, 30, ... Are formed in the peripheral portion.

Such a stopper 29 is used for the ball screw body 2
And is mounted on the upper surface of the gear case 18.
At this time, the protrusion 18a protruding from the gear case 18,
The notches 30, 30, ... Are engaged with 18a ,.

Reference numeral 31 is a glass bracket for connecting a window glass, which will be described later, with the ball screw body 2, and comprises a support portion for supporting the window glass and a slider portion moved by the ball screw body 2.

Reference numeral 32 is a support portion, which is formed by bending a sheet metal material. Reference numeral 33 is a main portion of the support portion 32, and both side portions of the upper end portion thereof are formed to be punched out to one side, and the punched portions 34 and 34 are formed with insertion holes 34a and 34a '.

At the lower edge of the main portion 33, a step portion 35 extending obliquely is formed in the central portion thereof, and connecting pieces 36 are formed from the lower edges at different height positions located on both sides of the step portion 35.
L and 36R are provided so as to project in a direction opposite to the projecting direction of the drive-out portions 34 and 34. Then, these connecting pieces 36
One of the L and 36R is inclined in a direction in which one end 36L is lowered, and the other 36R is inclined in a direction in which the tip is raised. Then, these connecting pieces 36L, 3
The inclination angle of 6R is the same as the inclination angles of the screw grooves 3L and 3R of the ball screw body 2. In addition, these connecting pieces 36L, 3
End edges of 6R facing each other are folded back to opposite sides to form engagement edges 37L, 37R having a thickness twice the thickness of the sheet metal material and rounded edges. And
The distance between the end edges of the engaging edges 37L and 37R is the same as or slightly wider than the distance between the inner surfaces of the screw grooves 3L and 3R located on opposite sides of the ball screw body 2.

The engagement edges 37L and 37R are doubled and the edges thereof are rounded, as will be described later, because the engagement edges 37L and 37R are the screw grooves 3L of the ball screw body 2. This is for preventing the screw grooves 3L, 3R of the ball screw body 2 from being scraped by the edge when engaging with 3R and being fed by this. Therefore, it is not always necessary to make it double as shown here. For example, as will be described later, when the slider part is integrally formed with the support part 32 by outsert molding, the screw groove 3L of the ball screw body 2 is formed. The edge engaging with 3R may be covered with the material resin of the slider portion.

Reference numeral 38 denotes a slider portion which is made of synthetic resin and is integrated with the connecting pieces 36L and 36R of the support portion 32 by so-called outsert molding. An insertion hole 39 having an inner diameter that is the same as or slightly larger than the outer diameter of the ball screw body 2 is provided through the slider portion 38, and the engaging edges 37L and 37R are formed from the facing surfaces sandwiching the center of the insertion hole 39. The insertion hole 3
9 is protruding.

The ball screw body 2 is inserted into the insertion hole 39 of the slider portion 38 of the glass bracket 31.
The engagement edge 37L of the glass bracket 31 is in the thread groove 3L of the ball screw body 2, and the engagement edge 37R is in the thread groove 3R.
Are slidably engaged with each other.

When the ball screw body 2 is rotated by the motor 17, the engagement edges 37L and 37R of the glass bracket 31 are fed by the screw grooves 3L and 3R,
Therefore, the glass bracket 31 is moved along the ball screw body 2.

Reference numeral 40 is a window glass of an automobile door, which is guided by a guide (not shown) so as to be movable up and down, and the lower end portion thereof is an insertion hole 34a of the glass bracket 31.
It is attached to the support portion 32 of the glass bracket 31 by a screw (not shown) inserted through 34a '.

Therefore, as described above, the ball screw body 2
When the glass bracket 31 moves due to the rotation of, the window glass 40 is moved up and down.

When the glass bracket 31 reaches the lower end of its moving range, the slider 38 collides with the stopper 29,
Buffered.

Since the door of an automobile usually has a curved surface, and the window glass moves along the curved surface, the member supporting the window glass, for example, the glass bracket 31 in the above embodiment is curved. I will move the route I did. Further, in the above-mentioned automobile window glass lifting device 1, since the ball screw body 2 for moving the glass bracket 31 is made of synthetic resin having elasticity, it can be installed in a curved state. Glass 4
It is possible to adapt to a travel path of zero. Therefore, it is excellent in versatility and can be applied to various vehicles having different curvatures of the movement path of the window glass.

Further, in the above embodiment, the engaging edges 37L, 37R of the glass bracket 31 are inserted from the side sandwiching the ball screw body 2 in the direction orthogonal to the bending direction of the ball screw body 2 and the axial direction of the ball screw body 2. Are engaged with the screw grooves 3L, 3R, the influence of the deformation of the screw grooves 3L, 3R due to the bending of the ball screw body 2 on the engagement with the engaging edges 37L, 37R, It does not appear unnatural in movement due to imbalance between the two evenly appearing on 37R.

Further, since the screw grooves with which the engaging edges 37L and 37R are engaged are the two threads 3L and 3R, these engaging edges 37 are formed.
The L and 37R can be supported at the same height, and a relatively heavy object such as the window glass 40 can be supported with a good left-right balance, which also contributes to smooth movement.

10 and 11 show a modification of the ball screw body.

At the upper end and the lower end of the ball screw 2A, there are continuous portions 41, 41, ...
.. is formed. The non-advanced portions 41, 41, ... Are formed with a pitch of 0, and the width thereof is slightly larger than the width of the spiral grooves 3L, 3R.

When the glass bracket 31 reaches the upper end or the lower end of the ball screw body 2A, its engaging edge 37 is formed.
L and 37R come to engage with the respective non-progressive portions 41 and 41, and the glass bracket 31 does not move further upward or downward.

When the ball screw body 2 is used,
When the glass bracket 31 reaches the upper limit or the lower limit of its movement range, the glass bracket 31 cannot move further upward or downward, but the motor 17 still tries to keep rotating due to inertia.

Since the spiral grooves 3L and 3R have a lead angle, a force acts to move the glass bracket 31 further upward or downward. Therefore, since a torsion load and a thrust load are applied to the ball screw body 2, it is necessary to make the support mechanism of the ball screw body 2 strong, and since stress is also applied to the ball screw body 2,
There is a problem in its durability.

However, like the ball screw body 2A described above, the non-advanced portions 41, 41, ... Are provided at the upper and lower ends thereof.
By providing *, even if the motor 17 rotates due to inertia, the engagement edges 37L and 37R of the glass bracket 31 are fixed to the non-advanced portions 41 and 4,
1, the force for moving the glass bracket 31 further upward or downward does not work, so that an unreasonable force is not applied to the ball screw body 2A, and the support mechanism of the ball screw body 2A is so strong. You do n’t have to
The durability of the ball screw body 2A is also increased.

Also, as in the ball screw body 2B shown in FIG. 11, two screw grooves 3L, 3L having a pitch of 0 are provided at both upper and lower ends thereof.
Even if the non-advanced portions 42 and 42 common to the R are formed, the same effect can be obtained.

12 to 15 show another modification of the power transmission system from the motor 17 to the ball screw body 2.

In the above-described embodiment, the transmission of power from the motor 17 to the ball screw body 2 is performed by the worm and the worm wheel 13 (not shown) in the gear case 18, so the center axis of the motor 17 and the center axis of the ball screw body 2 are transmitted. Are separated from each other and take up a space in the width direction of the automobile, and it is difficult to install them on a thin door such as a door of a light automobile.

What is shown in FIGS. 12 and 13 is a motor 1
The bevel gears 43 and 44 are fixed to the rotary shaft of 7 and the lower end of the ball screw body 2, respectively.
It is the one that meshes with each other.

The one shown in FIG. 12 is shown in FIG.
And (b), the motor 17 is arranged between the window glass 40 and the inner panel 46 of the door 45, and the one shown in FIG.
No. 5 inner panel 46 and a door trim 47 provided outside the lower end portion of the inner panel 46.

The motor shown in FIGS. 14 and 15 is a motor 1.
The spur gears 48a and 48b are fixed to the rotary shaft of 7 and the lower end of the ball screw body 2, respectively.
8b is meshed with each other.

The one shown in FIG. 14 is the same as that shown in FIG.
And (b), the motor 17 is arranged between the window glass 40 and the inner panel 46 of the door 45, and the one shown in FIG. It is arranged between the outer panel 49 and the outer panel 49.

16 to 18 show a modification of the glass bracket.

FIG. 16 shows a first modification 31A, in which the insertion hole 39A of the slider portion 38 is formed in an oval shape when viewed in the axial direction. That is, the inner diameter of the insertion hole 39A is considerably larger than the outer diameter of the ball screw body 2 in the bending direction of the ball screw body 2, and the inner diameter of the insertion hole 39A is the same as the outer diameter of the ball screw body 2 in the direction orthogonal to the bending direction. It is formed slightly larger.

Therefore, even though the ball screw body 2 is curved, the ball screw body 2 has the glass bracket 31.
While being easily inserted into the insertion hole 39A of the slider portion 38 of A, the window glass 40 is prevented from rotating.

That is, as can be seen in FIG. 18A, in the glass bracket 31, the insertion hole 39 of the slider portion 38 is inserted through the ball screw body 2 unless the inner diameter thereof is considerably larger than the outer diameter of the ball screw body 2. I can't. Therefore, if the inner diameter of the insertion hole is increased in order to allow the curved ball screw body 2 to be inserted, the window glass 40 in the direction orthogonal to the bending direction of the ball screw body 2 is obtained.
However, there is a problem that the window glass 40 rotates by the difference between the outer diameter of the ball screw body 2 and the inner diameter of the insertion hole.

However, in the glass bracket 31A, since the inner diameter of the insertion hole 39A in the bending direction of the ball screw body 2 is made considerably larger than the outer diameter of the ball screw body 2, the ball screw body 2 can be inserted, and Since there is no play between the ball screw body 2 and the insertion hole 39A in the direction orthogonal to the bending direction of the ball screw body 2, the window glass 40 does not rotate in that direction.

FIG. 17 shows a second modification 31B, in which the insertion hole 39B of the slider portion 38 has a central portion 50a when one inner surface 50 in the bending direction of the ball screw body 2 is viewed in a longitudinal section. It is close to the other surface 51 and is curved so as to be separated from the other surface 51 at both upper and lower ends 50b, 50b, and the inner diameter formed by the central portion 50a and the other surface 51 is substantially equal to the outer diameter of the ball screw body 2. The distance between the other surface 51 and the upper and lower ends 50b and 50b gradually increases. The inner diameter of the insertion hole 39B in the direction orthogonal to the curving direction of the ball screw body 2 is formed to be substantially equal to the outer diameter of the ball screw body 2.

Therefore, even in this glass bracket 31B, even though the ball screw body 2 is curved, the ball screw body 2 is easily inserted into the insertion hole 39B of the slider portion 38 of the glass bracket 31B, and The rotation of the window glass 40 is prevented.

FIG. 19 and FIG. 20 show a modification in which waterproofness is taken into consideration.

Reference numeral 52 denotes a stopper having a good smoothness or a stopper having a metal upper surface and a rubber lower surface, which has a thick disk shape, and an insertion hole 53 is formed in the center thereof. The insertion hole 53 is a portion 54 (hereinafter, referred to as a portion 54 immediately above the engaging projections 6 and 6 of the connecting portion 4 of the ball screw body 2C and the supported portion 7).
This is called the "fitting part". ) Can be inserted, especially,
It is formed to have a diameter substantially the same as the outer diameter of the fitting insertion portion 54.

A wedge-shaped engaging edge 55 having a transverse cross section is provided at the opening edge of the insertion hole 53 of the stopper 52 so as to project upward. The inner surface of the engagement edge 55 is in the same plane as the inner circumference of the insertion hole 53, and the outer surface 55a is an inclined surface.

The stopper 52 is fixed on the brackets 19 and 19.

Reference numeral 56 denotes a skirt portion integrally provided so as to project obliquely downward from the upper end portion of the fitting insertion portion 54 of the ball screw body 2C, and the inner surface 56a thereof is an inclined surface.

In the ball screw 2C, the connecting portion 4 is inserted into the gear case 18, the worm wheel 13 is connected to the connecting portion 4 via the damper 10, and the bracket 19 fixed to the gear case 18 is provided. 19
The supported portion 7 is supported by the same as in the above-described embodiment.

Further, the ball screw 2 is inserted into the insertion hole 53 of the stopper 52 fixed on the brackets 19, 19.
The C insertion portion 54 is inserted, and the ball screw body 2C
The skirt portion 56 is positioned so as to cover the engagement edge 55 of the stopper 52. At this time, the inclined surface 5 of the skirt portion 56
6a and the inclined surface 55a of the engagement edge 55 are brought into contact with each other.

Then, if water intrudes into the door of the automobile, the water travels through the ball screw 2C and the gear case 18
Even when it descends toward the lower end of the ball screw body 2C, the water flows down along the outer surface of the skirt portion 56 onto the stopper 52 at the lower end portion of the ball screw body 2C, and the water flowing down to the stopper 52 falls under the stopper 5
It is impossible for the water to reach the insertion hole 53 because it is blocked by the engaging edge 55 of the second gear.
It is possible to prevent the intrusion.

FIG. 21 shows a modification in which the mounting workability is improved.

Reference numeral 57 is a guide bar formed of metal in a rod shape, and the lower end portion thereof is fixed to the gear case 18.

The slider portion 38 of the glass bracket 31C
A sliding hole 58 is formed in C so as to vertically pass through the corner position, and the guide bar 57 is slidably inserted into the sliding hole 58.

The auxiliary metal piece 25C of the bracket 23C is formed with an auxiliary piece 59 horizontally protruding from the lower edge thereof, and the upper end portion of the guide bar 57 is fixed to the auxiliary piece 59.

In this modified example, however, the bracket 23C and the glass bracket 31C do not rotate in the single product state before being mounted on the door of the automobile, and the mounting workability is improved.

That is, for example, if the bracket 23 rotates in the above-described embodiment, the bracket 23 must be rotated in the mounting direction to correct the orientation when mounting, and extra labor is required. This will be the case. Further, since the slider portion 38 of the glass bracket 31 has a nut structure and is simply screwed into the ball screw body 2, the glass bracket 31 is rotated as a single piece, and when it is rotated, its position is changed from a predetermined position. It will shift. The ascending / descending device 1 is normally assembled through a hole called a service hole formed in the frame of the door. However, if the position of the glass bracket 31 moves from the predetermined position as described above, The position is displaced from the service hole, and it becomes impossible to assemble the window glass 40. Further, if the glass bracket 31 does not rotate and is in the proper orientation, a part of the glass bracket 31 will cross the movement path of the window glass 40.
When 0 is inserted from the upper part of the door, the lower edge of the window glass 40 hits the glass bracket 31 and the window glass 40
Cannot be lowered to the mounting position, and consequently the glass bracket 31 and the window glass 40 cannot be joined.

However, in the above-described modification, the bracket 23C and the glass bracket 31C do not rotate when they are in a single product state, so the above-mentioned problem does not occur.

Incidentally, a pad 60 made of a material having a large friction coefficient such as sponge, rubber or paper is interposed between the bracket 23 and the lower surface of the supported portion 8 of the ball screw body 2 as shown in FIG. 22, or As shown in FIG. 23, if the ball screw body 2 is screwed into a predetermined position, the bracket 2
3 does not rotate due to friction with the pad 60, and the glass bracket 31 does not move below the position where the pad 60 is located. In FIG. 23, the pad 60 is attached to the slider portion 3 of the glass bracket 31.
If it is attached to the lower surface of 8, the rotation of the glass bracket itself can be suppressed.

[0073]

As is apparent from the above description, the vehicle window glass lifting device of the present invention has a ball screw member rotatably supported by the vehicle body at the upper and lower ends thereof, and rotates the ball screw member. It is characterized in that it comprises a motor and a slider that is screwed into the ball screw body and supports a window glass.

Therefore, the vehicle window glass lifting device of the present invention has the advantages that the number of constituent parts is small, the structure is simple, the cost is low, and the breakdown is small.

It should be noted that the shapes and structures of the respective parts shown in the above-mentioned embodiments are merely examples of the embodiment when carrying out the present invention, and the technical scope of the present invention is limited thereby. It should not be construed in a conventional way. In particular, the ball screw body does not have to be made of a synthetic resin having elasticity as shown in the embodiments.

[Brief description of drawings]

FIG. 1 is a side view showing an example of an embodiment of a vehicle window glass lifting device according to the present invention.

FIG. 2 is a front view.

3 is an enlarged cross-sectional view taken along the line III-III in FIG.

FIG. 4 is an enlarged perspective view showing an exploded support structure of a lower end portion of the ball screw body.

FIG. 5 is an enlarged plan view showing a stopper.

FIG. 6 is an enlarged perspective view showing a slider.

FIG. 7 is an enlarged perspective view showing a part of a slider.

FIG. 8 is an enlarged plan view of a slider.

FIG. 9 is an enlarged cross-sectional view showing an engaged state of a ball screw body and a slider.

FIG. 10 is a side view showing a modified example of the ball screw body.

FIG. 11 is a side view showing another modification of the ball screw body.

FIG. 12 is a view showing another modified example of the power transmission system between the motor and the ball screw body together with FIGS. 13 to 15, and this figure shows the first modification thereof; Is a schematic front view, and (b) is a schematic sectional view.

FIG. 13 is a schematic cross-sectional view showing the second one.

14A and 14B show the third one, in which FIG. 14A is a schematic front view and FIG. 14B is a schematic sectional view.

FIG. 15 is a schematic sectional view showing a fourth one thereof.

16A and 16B show a modified example of the glass bracket, in which FIG. 16A is a plan view of a main part, and FIG. 16B is a vertical sectional view of the main part.

FIG. 17 shows another modified example of the glass bracket, (a) is a plan view of an essential part, and (b) is a longitudinal sectional view of the essential part.

FIG. 18 is a diagram for explaining a problem, where (a) is a schematic vertical sectional view and (b) is a schematic side view.

FIG. 19 shows a modified example in consideration of waterproofness together with FIG. 20, and this figure is a longitudinal cross-sectional view showing an enlarged main part.

FIG. 20 is an exploded perspective view showing an enlarged main part.

FIG. 21 is a perspective view showing a modified example in which the mounting workability is improved.

FIG. 22 is a schematic side view showing an example of preventing rotation of the bracket.

FIG. 23 is a schematic side view showing an example of preventing the rotation of the glass bracket.

[Explanation of symbols]

1 Automotive window glass lifting device (vehicle window lifting device) 2 Ball screw body 17 Motor 31 Glass bracket (slider) 40 Window glass 2A Ball screw body 31A Glass bracket 2B Ball screw body 31B Glass bracket 2C Ball screw body 31C Glass bracket (slider)

Claims (1)

[Claims] 1. A ball screw body rotatably supported by a vehicle body at an upper end portion and a lower end portion, a motor for rotating the ball screw body, and a slider screwed with the ball screw body and supporting a window glass. A window glass lifting device for vehicles.