GB2225218A - Telescopic windscreen wiper - Google Patents
Telescopic windscreen wiper Download PDFInfo
- Publication number
- GB2225218A GB2225218A GB8820854A GB8820854A GB2225218A GB 2225218 A GB2225218 A GB 2225218A GB 8820854 A GB8820854 A GB 8820854A GB 8820854 A GB8820854 A GB 8820854A GB 2225218 A GB2225218 A GB 2225218A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wiper
- windscreen
- telescopic
- telescopic arm
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/34—Wiper arms; Mountings therefor
- B60S1/36—Variable-length arms
- B60S1/365—Variable-length arms the effective length being automatically varied during angular oscillation of the arm
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
A windscreen wiper assembly comprises a mechanism for extending and retracting telescopic wiper arm member 7 whilst the wiper arm is being angularly oscillated. The wiper arm member 7 may be extended and retracted by means of a cable 28 wound around pulleys 27 which may be spread apart by cranks 15 actuated by connecting rod 18. The inner end of the arm member may act against the bias of spring 25 when being retracted. The wiper arm assembly may be angularly oscillated by drive shaft 12. The assembly may be locked in position below the windscreen with arm member 7 in the fully retracted position by means of electromagnet 24 and spring 33. <IMAGE>
Description
TELESCOPIC WINDSCREEN WIPER
This invention relates to a telescopic windscreen wooer.
The windscreen wiper serves to provide transparency of an automobile windscreen during rainy and/or foggy weather. The wipers available at present function by wiping a surface which is a section of a circle area. Position and movement of a pair of wipers enables cleaning only oi a part of the windscreen surface, leaving the rest uncleaned, which may hinder the visibility.
According to the invention presented here a new telescopic windscreen wiper offer a possibility to wipe practically entire windscreen surface, significantly enhancing visibility and driving security. By means of a specially designed telescopic arm, comprising springs and cables assembly, the wiper attached to extendable part of the telescopic arm move in translatory motion across a windscreen, greatly improving efficacy of wiping although only one wiper is used.The most important feature is that during the transiatory motion tne wiper orientation relative to a windscreen surface remains unchanged regardless of its position on a wlndccreen, enabling a rectangular surface to be wipe. h wiped area can apnroxlmate the entire windscreen surface depending on the wiper dimensions. When not in use. bcrn tte wiper and the telescopic arm are in ccsitlon at the bottom ot a windscreen, minimal IV interfering with the drivers range of vision.
A more detailed principle of operation of this invention and a specific telescopic arm assembly are described in the toilowlng paragraph wttr reference to the accompanvina drawing.
Ail drawings are made in 1:1 scale except figures 1,9,10,14-17,20-22.
Figure 1 schematically illustrates windscreen wiper as a whole inclLitlng s views presented in Figures 2-5.
Figure 2 shows in detail ground-plan of a mechanism responsible for retraction and extension of a telescopic arm (view Q-S indicated in Figure li.
Figure 3 shows in detail ground-plan (seen from above) of the same as in Figure 2 (view A-S indicated in Figure 11.
Figure 4 shows in detail a side view of the telescopic arm, containing springs and cables assembly which enables retraction and extension of the telescopic arm (view C-D indicated in
Figure 1J.
Figure 5 shows in detail ground-plan (seen frDm above of the same as in Figure 4 view J- indicated in Figure If.
Figure 6 and Figure 7 show main part and expendable part of the telescopic arm.
Figure 8 shows a joint (see element 8 in Figures 2,3,4 and 5i.
Figure 9 shows a slider (see element 9 in Figures 4 and 5).
Figure 10 shows a glider cube.
Figure 11 shows a stator of the telescopic arm assembly (see element 11 in Figures 2 and 4
Figure 12 shows rotating head (see element 12 in Figures 2 and 4).
Figures 13-16 show parts of a mechanism enabling retraction and extension of the telee - arm: slide-rod (Figure 13), slider (Figure 14t. cramp (Figure 15' and lock rod (Figure li.
Figure 17 shows a wiper connector (see element 17 in Figures 4 and 5),
Figure 18 shows a connecting rod (see element 18 in Figures t and 3).
Figure 19 shows a hook (see element 19 in Figures 2 and 4).
Figure 20 shows a bar (see element 20 in Figures 4 and 5i.
Figure 21 shows a guide for guiding the etendabie telescopic arm see element 21 in Figures 4 and 5)
Figure 2 shows a fixing plate (see element 22 in Figures 4 and 5).
Following elements are parts of the telescopic arm assembly indicated in Figures 2,3,4 and 23 = cables; 24 = electro-magnet; 25 = suspension spring; 26 = wiper; 27 = pulley; 28 = cable; 29 = distant spring; 30 = spring; 31 = tunnel; 32 = locking device; 33 = spring; 34 = profile; 35 = Bowden cable; 36 = screw; 37 = grease nipple; 38 = gasket; 39 = eye; 40 = pin.
The telescopic arm is fixed to a car-body in the middle of a windscreen base. Semi-rotatlona movement of the telescopic arm is driven by a rotational head (12), Translatory motion or a wiper across a windscreen is achieved by synchronous rotation and - shortening of the telescopic arm having a wiper attached to its extendable part (Figure 1). When a wiper is In extremely deflected position, a telescopic arm is fully extended. Movement of the telescopic arm from this position toward the opposite side of a windscreen causes its shortening by means of synchronous retraction of extendable part (7).The prin-iple o4 this ope-ation (see
Figures 1-5) is as follows: movement of a connecting rod (18) forces two cramps 1', by means of leverage to spread a system of pulleys (27), thus straining a cable (26': and pu'ling 1 the extendable arm (7) inside the main telescopic arm (6). This shortening is balanced by the counteraction of a suspension spring (25). The length of the telescopic arm is at minimum (fully retracted) in a moment when wiper passes a central point of the windscreen surface which is followed by the movement of the telescopic arm forcing other parts of the assemblv to function in a reversed mode.Cosequently, the telescopic arm gradually lengthens as wiper continues to move toward the opposite side of the windscreen. Thus, the extension of tne telescopic arm depends an the position of the wiper on the windscreen. After reaching its position on the other side, the wiper reoeats the same movement in the opposite direction, untill the cycle is completed.
In order to establish a translatory motion of the wiper extension ano retraction of the telescopic arm should be synchronous with its semi-rotational motion across the windscreen.
This is easily achieved by choosing the proper dimensions of the elements 15 and 18 in the assembly design. The orientation of tne wiper is perpendcular with resoect to the direction of its translatory movement, and remains unchanged during operation, enablIng a rectangular surface to be wiped. This is performed bv a mutual action of the cables (;, distant spring (30) and wiper connector (17). Wiper is oppressed against the windscreen surface by action of the springs (31:) maintained on the bars (20).
The operation of the wiper is terminated by locking the whole assembly in fully retracted position of the telescopic arm bellow the windscreen. For this purpose an eiectro-magnet (24) is activated and, by means of spring and cable system t33) Indicated in Figures 2 and 3. pull up the glide rod (13.) carrying a system of pulleys (27) and cramps (15). In the moment when the telescopic arm is fully retracted and cramps (15) are parallel to it the cramps i151 are ejected (lifted by the spring 33) to a lock rod (16) and fixed by means of cams. Element J4 placed in a slide rod (13) is also lifted blocking the whole telescopic arm in this position.
The slide rod (13) is released from its footing and can rotate around the same axis as the rotating head (12). Movement of a rotating head continues untill a fully retracted telescopic arm, having the wiper fixed on one end and the slide rod/cramps assembly on the other placed bellow a windscreen.
Claims (5)
1 A telescopic windscreen wiper comprising a telescopic arm with wiper attached to its extendable part, enabling by means of synchronous semi-rotational movement across a windscreen and retraction/extension of the telescopic arm, translatory motion of a wiper across a windscreen and a rectangular area to be wiped.
2 A telescopic windscreen wiper as claimed in Claim 1, wherein an assembly comprising a system of crapms, pulleys, springs and cables is provided to establish a functional dependence between semi-rotational motion of the telescopic arm and its retraction/extension.
3 R telescopic windscreen wiper as claimed in Claim 1 and Claim , wherein an assembly comprising a system of springs and cables is provided in order to keep the wiper in the same orientation during its motion across a windscreen.
4 A telescopic windscreen wiper as claimed in any preceding claim, wherein an assembly V is aranged in suct; a wav to lock. the telescopic arm in fully retracted position 1 order to place it bellow a windscreen.
5 A telescopic windscreen wiper as described herein with reference to Figures 1-2 ct the accompanving drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
YU158388 | 1988-08-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
GB8820854D0 GB8820854D0 (en) | 1988-10-05 |
GB2225218A true GB2225218A (en) | 1990-05-30 |
Family
ID=25554764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8820854A Withdrawn GB2225218A (en) | 1988-08-16 | 1988-09-05 | Telescopic windscreen wiper |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2225218A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5428859A (en) * | 1991-06-18 | 1995-07-04 | Battlogg; Stefan | Windshield wiper system with extendable wiper arm and pivotable wiper blade |
US5481778A (en) * | 1991-06-18 | 1996-01-09 | Battlogg; Stefan | Windshield wiper system with extendable wiper arm and adjustable blade pressure |
US5502866A (en) * | 1990-10-04 | 1996-04-02 | Battlogg; Stefan | Windshield wiper system with blade assembly drive for maintaining a constant attack angle of the wiper blade on a curved a windshield |
US5537705A (en) | 1989-03-29 | 1996-07-23 | Battlogg; Stefan | Windscreen wiper system with blade capable of moving in a swivelling and parallel manner relative to the wiper arm |
US5588173A (en) * | 1992-03-23 | 1996-12-31 | Battlogg; Stefan | Windshield wiper system with electric motor |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109435901B (en) * | 2018-12-06 | 2024-03-12 | 浙江兄弟之星汽配有限公司 | Automobile windscreen wiper with automatic telescopic function of heating and drying |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0147782A2 (en) * | 1984-01-04 | 1985-07-10 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Windscreen wiper arrangement especially controllable single-arm windscreen wiper arrangement for motor vehicles |
GB2162054A (en) * | 1984-07-28 | 1986-01-29 | Daimler Benz Ag | Windscreen wiper operating mechanism |
EP0218192A1 (en) * | 1985-10-08 | 1987-04-15 | FIAT AUTO S.p.A. | Variable-sweep windscreen wiper for vehicles |
EP0236757A1 (en) * | 1986-02-21 | 1987-09-16 | R.G.B. S.p.A. | Vehicle windshield wiper |
GB2191935A (en) * | 1986-06-24 | 1987-12-31 | Jaguar Cars | Windscreen wiper mechanism |
-
1988
- 1988-09-05 GB GB8820854A patent/GB2225218A/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0147782A2 (en) * | 1984-01-04 | 1985-07-10 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Windscreen wiper arrangement especially controllable single-arm windscreen wiper arrangement for motor vehicles |
GB2162054A (en) * | 1984-07-28 | 1986-01-29 | Daimler Benz Ag | Windscreen wiper operating mechanism |
EP0218192A1 (en) * | 1985-10-08 | 1987-04-15 | FIAT AUTO S.p.A. | Variable-sweep windscreen wiper for vehicles |
EP0236757A1 (en) * | 1986-02-21 | 1987-09-16 | R.G.B. S.p.A. | Vehicle windshield wiper |
GB2191935A (en) * | 1986-06-24 | 1987-12-31 | Jaguar Cars | Windscreen wiper mechanism |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5537705A (en) | 1989-03-29 | 1996-07-23 | Battlogg; Stefan | Windscreen wiper system with blade capable of moving in a swivelling and parallel manner relative to the wiper arm |
US5502866A (en) * | 1990-10-04 | 1996-04-02 | Battlogg; Stefan | Windshield wiper system with blade assembly drive for maintaining a constant attack angle of the wiper blade on a curved a windshield |
US5428859A (en) * | 1991-06-18 | 1995-07-04 | Battlogg; Stefan | Windshield wiper system with extendable wiper arm and pivotable wiper blade |
US5481778A (en) * | 1991-06-18 | 1996-01-09 | Battlogg; Stefan | Windshield wiper system with extendable wiper arm and adjustable blade pressure |
US5613267A (en) * | 1991-06-18 | 1997-03-25 | Battlogg; Stefan | Windshield wiper system with adjustable blade pressure |
US5588173A (en) * | 1992-03-23 | 1996-12-31 | Battlogg; Stefan | Windshield wiper system with electric motor |
Also Published As
Publication number | Publication date |
---|---|
GB8820854D0 (en) | 1988-10-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR20000068605A (en) | Windscreen wiper | |
GB2225218A (en) | Telescopic windscreen wiper | |
US5390391A (en) | Wiping device with variable contact force for windows of motor vehicles | |
US5222274A (en) | Windshield wiper arm, in particular for motor vehicles | |
US3428996A (en) | Rear window wiper | |
EP0570029A3 (en) | Windshield wiper arrangement | |
US4637091A (en) | Wiper arm assembly and system utilizing same | |
GB2253135A (en) | A windscreen wiper arm | |
ATE115921T1 (en) | WINDSHIELD WIPER ARM, ESPECIALLY FOR HIGH-SPEED VEHICLES. | |
US4208759A (en) | Windshield wiper attachment | |
US5774927A (en) | Screen wiper for a motor vehicel, having a bracket giving indexation for fitting purposes and location in the parked position of the wiper | |
US2811736A (en) | Windshield wiper | |
GB2154861A (en) | Windscreen wipers | |
US4916774A (en) | Windshield wiper drive mechanism with retracted parking position | |
US2591091A (en) | Reciprocable windshield wiper blade mounting | |
RU2012508C1 (en) | Pantographic apparatus for cleaning the automotive windshield | |
US2836841A (en) | Windshield cleaner parking installation | |
US3626543A (en) | Wiping arrangement for vehicle headlights | |
JPH10264772A (en) | Wiper device | |
US4831679A (en) | Wiper arm assembly for motor vehicles | |
KR860003396Y1 (en) | Plurality of wipers | |
SU1202927A1 (en) | Wiper of ship house portholes | |
ES2256144T3 (en) | SCAMOTABLE WINDSHIELD CLEANER FOR A CLOSURE CLOSURE OF A MOTOR VEHICLE. | |
US5131113A (en) | Windshield wiper yoke structure with sliding lever | |
EP0211969B1 (en) | Improvements relating to windscreen wipers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |