JPH02213578A - Lifting device - Google Patents

Abstract

PURPOSE:To prevent water droplets from sticking to a driving roller by arranging a flexible pipe body between the cover of the driving roller and a wire winding member on the upper side and inserting a driving wire into the pipe body. CONSTITUTION:A cover 30 is covered on a driving roller wound with part of a driving wire 33 suspended between wire winding members 4a and 4b provided at both the upper and lower end sections of a support plate 2. A flexible pipe body 38 is arranged between the cover 30 and the vicinity of the wire winding member 4a on the upper side, the driving wire 33 is inserted into it, and water droplets are prevented from sticking to the driving roller along the wire 33. The wire 33 is prevented from being released from the driving roller due to freezing in winter or from being brought into contact with other portions.

Description

[Detailed description of the invention] The elevating device of the present invention will be explained in detail according to the following items.

A. Industrial field of application B0 Overview of the invention C1 Prior art [Figures 10 and 11] D1 Problems to be solved by the invention [Figures 10 to 12] 51 Means for solving the problems F. Implementation Examples [Figures 1 to 9] a, support plate, guide rail C1, drive roller, drive section d, drive wire e, flexible pipe body f, support member g, others h6 operation G4 effects of the invention (A. Industrial Application Field) The present invention relates to a novel lifting device. Specifically, regarding an elevating device that uses a wire as a means for transmitting the driving force to raise and lower a member to be lifted and lowered, and transmits the driving force to the wire via a driving roller, water droplets travel along the wire and adhere to the driving roller. The purpose of the present invention is to provide a new elevating device that prevents such problems.

(B. Summary of the Invention) The lifting device of the present invention covers a drive roller around which a part of a drive wire is wound around wire winding members provided at both upper and lower ends of a support plate with a cover. A flexible pipe body, through which the drive wire is inserted, is located between the drive wire and the wire winding member provided at the upper end of the support plate, and prevents water droplets from adhering to the drive roller through the drive wire. It can be prevented.

(C, Prior Art) [Figures 10 and 11] There are various types of lifting devices, for example, lifting devices for raising and lowering automobile window glass. Among them, there is one that uses a wire as a driving body. There is.

FIG. 10 and FIG. 11 show an example of a lifting device using a wire as a driving body.

A is a guide rail and extends in the vertical direction. Reference numeral b denotes a bracket, which is slidably supported by the guide rail a.

C is a guide reel rotatably supported on the front side of the upper end of the guide rail a, and d is a guide block fixed to the front side of the lower end of the guide rail a.

Reference numeral e denotes a drive unit, in which a drive roller g is rotatably supported by a support plate f.

h is a drive wire that extends along the longitudinal direction of the guide rail a, is wound around the guide reel C at its upper end, is wound around the drive roller g several times, and is then wound around the guide block d.
It is wound around the tube and passed through a path that extends upward. It is connected to the bracket b at a portion located between the guide reel C and the guide block d.

However, in the above-mentioned lifting device, the driving roller g
When the drive wire h is rotated, the drive wire h is moved along the above-mentioned path. Therefore, the drive wire h is raised or lowered depending on the rotating direction of the drive roller g in the portion along the length of the guide rail a, and therefore the bracket b connected to the drive wire h is This means that the member to be lifted or lowered, such as a windowpane supported by the bracket b, is raised or lowered.

(D. Problems to be Solved by the Invention) [Figures 10 to 12] By the way, in the above-mentioned lifting device, water droplets such as rainwater or car wash water that have entered the inside of the car door can be removed by the drive wire h.
It has a habit of adhering to the drive roller g.

When water droplets adhere to the drive roller g in a cold region or during a cold season, the water droplets freeze in the groove i into which the drive wire h of the drive roller g fits, as shown in FIG. Therefore, there is a problem that the drive wire h may come off from the groove i or the drive wire h may come into contact with other parts and the durability may be reduced due to wear or the like.

(E. Means for Solving the Problems) In order to solve the above-mentioned problems, the lifting device of the present invention has the following features: A flexible pipe body is provided in the pipe body, and a drive wire is inserted through the pipe body.

Therefore, in the lifting device of the present invention, since the portion of the drive wire located above the cover that covers the drive roller is covered with a flexible pipe body, the portion of the drive wire above the drive roller is Water droplets are difficult to adhere to,
Thereby, it is possible to prevent water droplets from adhering to the drive roller along the drive wire, and it is possible to eliminate the inconvenience caused by the adhesion of water droplets to the drive roller.

(F. Embodiment) [FIGS. 1 to 9] Details of the lifting device of the present invention will be described below according to Embodiment 1 illustrated. In the illustrated embodiment 1, the present invention is applied to an automobile window glass lifting device.

(a, support plate) Reference numeral 2 denotes a support plate, which is formed of a sheet metal in a vertically elongated manner.

The support plate 2 is gently curved, and one surface 2a has a protruding middle portion in the vertical direction, and the other surface 2b has a depressed middle portion in the vertical direction.

Projections 3a and 3b projecting laterally are formed on one side edge of both the upper and lower ends of the support plate 2, so that the support plate 2 is formed wider at the upper and lower ends than at other parts.

4a and 4b are rotatably supported by support shafts 5.5 that protrude toward one surface 2a from the boundary between the substantially protrusions 3a and 3b on one side of both upper and lower ends of the support plate 2 and other parts. The pulley has a groove 6.6 formed in its curved surface. And these pulleys 4a.

4b is a wire recirculating member.

Note that these pulleys 4a and 4b are made of relatively inexpensive general-purpose resin and expensive high-performance resin. That is, it consists of a main part 7 having a slightly deep groove 7a formed on its circumferential surface and an annular part 8 fitted into the bottom of the groove 7a of the main part 7, and the main part 7 is made of, for example, polyacetal. The annular portion 8 is made of an expensive material such as polyimide, and these are integrally formed by a so-called two-color molding method.

As a result, the parts of the pulleys 4a and 4b that are in contact with drive wires, which will be described later, have excellent wear resistance, temperature resistance, and sliding resistance, and are not so expensive.

Reference numeral 9 designates a mounting piece that projects upward from the upper end of the support plate 2, has an abbreviated shape when viewed from the side, and slightly projects toward the other surface 2b;
Mounting bolts 10.10 are secured to both ends thereof. Reference numeral 11 denotes a mounting bracket fixed to the other surface 2b of the lower end portion of the support plate 2, and a mounting bolt 12 is also fixed to the mounting bracket 11. The support plate 2 is attached to the structure of an automobile door (not shown) using these attachment bolts 10, 10, and 12.

(b, Guide Rail) 13 is a guide rail, which is formed from a sheet metal. The guide rail 13 has a base piece 1 extending vertically in a strip shape.
4 and side pieces 1 protruding from both side edges of the base piece 14 in the same direction.
5.15 and engaging pieces 16.16 that protrude toward each other from the edges of these side pieces 15.15 on the side opposite to the base piece 14, and between the engaging pieces 16, An extending wide slit 17 is formed. In other words, the base piece! 4 and side piece 15
．． A cylindrical guide space 18 that extends in the vertical direction by the engagement pieces 15 and 16 and opens at the slit 17.
is formed. Also, at both upper and lower ends of the side pieces 15.15, there are stopper pieces 19.19 that protrude toward the guide space 18.
- are integrally formed. In addition, the base piece 14 is connected to the support plate 2
The guide space 18 is also gently curved along one surface 2a of the guide space 18.

The base piece 14 of the guide rail 13 is fixed to a portion along the other side edge of one surface 2a of the support plate 2 by spot welding or the like.

Reference numeral 20 designates a guide wall that protrudes from a portion of one side edge of the support plate 2 between the protrusions 3a and 3b toward one surface 2a, and is constant with the side piece 15 on the one side edge side of the guide rail 13. They face each other in parallel with a distance of .

(c, Drive Roller, Drive Unit) Reference numeral 21 denotes a mounting bracket, which is fixed at a position closer to the precision edge than the center of the other surface 2b of the support plate 2 and protrudes from one side edge of the support plate 2.

Reference numeral 22 denotes a drive roller rotatably supported on one side of a portion of the mounting fitting 21 that protrudes from one side edge of the support plate 2 . A spiral winding groove 23 is formed on the outer peripheral surface of the drive roller 22.
is formed. 24 is the shaft of the drive roller 22;
One end is fixed to the center of the drive roller 22, and the other end passes through the mounting bracket 21 in its thickness direction.

Reference numeral 25 denotes a driving section, and necessary elements are housed in a case 26 fixed to the other surface 2b of the support plate 2.

A worm gear 28 is fixed to a rotating shaft 27a of the DC motor 27, and a worm wheel 29 is meshed with the worm gear 28. The drive roller 22 is fixed to one end of the shaft 24, and the other end of the shaft 24 is fixed to the center of the worm wheel 29.

Therefore, when the DC motor 27 rotates, its rotation is
It is transmitted to the drive roller 22 via the ohm gear 28, the ohm wheel 29, and the shaft 24, and the drive roller 22 rotates.

A cover 30 covers the drive roller 22 and is fixed to the mounting bracket 21. Wire insertion holes 31 and 32 are formed in the upper and lower portions of the cover 30 on the side far from the support plate 2, through which drive wires, which will be described later, are inserted.

(d. Drive wire) 33 is a drive wire, which is spanned between pulleys 4a and 4b supported at both upper and lower ends of the support plate 2. Of the two portions 33a, 33t) of this drive wire 33 that face each other across the pulleys 4a, 4b, the other 3
Both ends located at 3b are connected to the drive roller 2 in opposite directions.
2 along the winding groove 23 formed on the outer peripheral surface of the
Each end 33'33' (one not shown) is a recess 22a formed on both end surfaces of the drive roller 22.
, 22a (one not shown).

The portion 33b of the drive wire 33 that has been wound around the upper pulley 4a is inserted through the wire insertion hole 31 on the upper side of the cover 30, then wound around the drive roller 22, and then wound around the lower pulley 4b. The wire that has been wound is inserted through the wire insertion hole 32 on the lower side of the cover 30 and then wound around the drive roller 22.

(e, flexible pipe body) 34 is a vibe receiver fixed to a position close to the pulley 4a of the upper mounting piece 9, and has a plate shape and is a mounting part fixed to the mounting piece 9. 35 and a substantially cylindrical receiving portion 36 are integrally formed.

The receiving portion 36 is open at the lower end and has a receiving edge 36a projecting inward at the upper end. A compression coil spring 37 is received within the receiving portion 36 .

38 is a pipe body made of a flexible material, for example, a flexible synthetic resin such as polyacrylate or polyamide, and the lower end thereof is thickened so as to have a substantially conical shape. A protrusion 38a having a slightly smaller diameter than the bottom surface of the conical portion is integrally protruded from the lower end surface, and an annular groove 39 is formed on the outer peripheral surface of the base of the protrusion 38a.

Thus, the protrusion 38a at the lower end of the pipe body 38 is fitted from the outside into the wire insertion hole 31 on the upper side of the cover 30, and the annular groove 39 formed at its base is aligned with the opening edge of the wire insertion hole 31. engaged. Also, the upper end of the pipe body 38 is inserted into the receiving part 36 of the vibe receiving body 34 from below.
is included. And the compression coil spring 37
is compressed between the receiving edge 36 a of the vibe receiving body 34 and the upper end of the pipe body 38 .

A portion of the drive wire 33 located between the upper pulley 4a and the drive roller 22 is connected to the vibrator body 38.
It is inserted inside.

Note that the drive wire 33 may elongate as it is used, but if the compression coil spring 37 is used as described above, when the drive wire 33 elongates, it will elongate by an amount corresponding to the amount of elongation. The vibrator body 38 is pushed out from the receiving portion 36 by the compression coil spring 37 and becomes substantially longer, thereby preventing the drive wire 33 from sagging.

(f, support member) 40 is a support member for supporting the member to be lifted and lowered.

41 is the main part of the support member 40, which is made of sheet metal. A mounting hole 42 is formed at one end of the main portion 41, and a notch 43 is formed at the other end near the upper end.

Reference numeral 44 denotes a guided block fixed approximately at the center of the other surface of the support member 40, and includes a guided portion 45 in the shape of a disk having a diameter slightly smaller than the width of the guide space 18, and the guide space 1.
A columnar base 46 having a diameter slightly smaller than the width of the slit 17 of No. 8 is integrally formed, and the side of the base 46 opposite to the guided portion 45 is fixed to the main portion 41 with screws. The guided portion 45 of the guided block 44 is slidably engaged within the guide space 18 of the guide rail 13, and the base portion 46 is slidably engaged with the slit 17. Thus, the support member 40 is supported by the support plate 2 so as to be movable along the guide space 18 of the guide rail 13.

Reference numeral 47 denotes a connecting block having a substantially rectangular block shape, and is fixed with a screw at a position slightly closer to one end side of the guided block 44 on the other surface of the main portion 41, and its negative side 47a is a supporting block. The guide wall 20 formed on the plate 2
They face each other in parallel with each other with a slight distance between them.

48 is a receiving recess formed approximately in the center of the other surface of the connecting block 47, and 49 and 49 are grooves formed in the other surface of the connecting block 47 so as to extend vertically through the receiving recess 48. be.

50 denotes the two portions 33a, 33 of the drive wire 33.
A fitting block 50 is fixed to one side 33a of b, and the fitting block 50 is fitted into the receiving recess 48 of the connecting block 47, whereby the support member 40 is connected to the drive wire 33. . At this time, the portions of the drive wire 33 located above and below the fitting block 50 are fitted into the grooves 49 and 49 of the connecting block 47.

(g, Others) 51.51.51 are spacers attached to the support plate 2 at appropriate intervals in the vertical direction.

Each spacer 51 has a substantially semi-cylindrical main part 52 and a leg part 53 protruding from the bottom of the main part 52, which are integrally molded from a synthetic resin with excellent wear resistance and sliding resistance, such as polyimide resin. The leg portion 53 includes two leg pieces 54.54, and the leg pieces 54.54 have claws 54a1 on the outer surface of their tips.
54a.

Then, when the leg portion 53 is inserted into the mounting hole 55 formed in the support plate 2, the two leg pieces 54 are bent so as to approach each other, and the tip portion passes through to the back side of the base piece 14, and the claw 54
a, 54a engages with the edge of the attachment hole 55 on the back side of the base piece 14, and the spacer 51 is attached to the support plate 2. These spacers 51, 51, 51 are arranged at positions facing the drive wire 33 on the support plate 2. Therefore, the drive wire 33 is inserted into the spacers 51, 51, 51 before directly touching the support plate 2.
1,51.51, and the drive wire 3
3. Contributes to longer service life.

(h, Operation) Thus, a windowpane (not shown) is supported by screws inserted into the main portion 41 of the support member 4o of the lifting device 1 through its mounting hole 42 and notch 43.

When the DC motor 27 rotates, one of the two portions 33a of the drive wire 33 rises or falls depending on the direction of rotation, so that the support member 4o connected thereto moves along the guide space 18. It will rise or fall.

Even if rainwater or the like enters the space where this lifting device 1 is arranged, since the pipe body 38 is attached to the drive wire 33 in the area above the drive roller 22, water droplets will not flow down the drive wire 33. Adhesion to the drive roller 22 is prevented.

(G. Effects of the Invention) As is clear from the above description, the lifting device of the present invention has a vertically extending support plate and wire winding members provided at both upper and lower ends of the support plate. With the drive wire that was! [! A support member for supporting a member to be lifted and lowered is connected to one of two parts of the 1111 wire that are opposed to each other with two wire winding members in between, and the other of the two parts of the drive wire is wound. a drive roller that is supported on the other side of the support plate and rotates the drive roller; a cover that covers the drive roller except for the upper and lower wire insertion holes; and an upper side provided on the cover. A flexible pipe body is provided between the wire insertion hole and the vicinity of the wire winding member provided at the upper end of the support plate, and the drive wire is inserted therethrough.

Therefore, in the lifting device of the present invention, m! Since the part of the I3 wire located above the cover covering the drive roller is covered by a flexible pipe body,
It is difficult for water droplets to adhere to the drive wire above the drive roller.
As a result, it is possible to prevent water droplets from adhering to the drive roller along the drive wire, and it is possible to eliminate the inconvenience caused by the adhesion of water droplets to the drive roller.

Although the above embodiments have been described in which the present invention is applied to a device for lifting and lowering window glass for automobiles, this does not mean that the scope of application of the present invention is limited to such a device.

Moreover, the above-described embodiments are merely illustrative of possible embodiments of the present invention, and the content of the present invention is not limited thereto.

[Brief explanation of the drawing]

1 to 7 show an example of the implementation of the lifting device of the present invention. FIG. 1 is a front view, FIG. 2 is a partially cutaway rear view, FIG. 3 is a side view, and FIG. Figure 4 shows mV-m in Figure 1.
FIG. 5 is an enlarged sectional view taken along line V-V in FIG. 1, FIG. 6 is an enlarged sectional view showing the pipe body and its surroundings, and FIG. 7 is an enlarged sectional view showing the drive wire and support member. FIG. 8 is an enlarged perspective view showing the wire winding member with a portion cut away, FIG. 9 is an enlarged sectional view taken along line IX-IX in FIG. 4, and FIGS. Fig. 12 shows an example of a conventional lifting device. Fig. 10 is a front view, Fig. 11 is a sectional view taken along the line XI-XI in Fig. 10, and Fig. 12 is an enlarged sectional view of the main parts. be.・Lower wire insertion hole, ・Drive wire, flexible pipe body, ・Supporting member Applicant: Koito Manufacturing Co., Ltd. Code explanation 1...Elevating device, 2...Support plate, 4a... - Upper wire winding member, 4b... Lower wire winding member, 22... Drive roller, 25... Drive unit, 30...
...Cover 31...Upper wire insertion hole, enlarged sectional view <w-py*) Fig. 4 33...Disassembled perspective view of drive wire Fig. 7 Perspective view j6 Cross-sectional view (r-ff tightening) No. 9 figure

Claims (1)

[Claims] A support plate extending in the vertical direction, a drive wire spanned between wire winding members provided at both upper and lower ends of the support plate, and two wire winding members of the drive wire being sandwiched between them. a support member connected to one of the two opposing parts to support the member to be lifted and lowered; a drive roller around which the other of the two parts of the drive wire is wound; and the other side of the support plate. a drive unit that is supported by and rotates the drive roller; a cover that covers the drive roller except for the upper and lower wire insertion holes; A lifting device characterized by comprising a flexible pipe body provided near a wire winding member and a flexible pipe body through which a drive wire is inserted.