US3745853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable connecting arm
Assignee: Trico Products Corp
•
Filing: 1972-03-22
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Granted: 1973-07-17
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Expires: 1992-03-22
Abstract
Abstract A connecting arm for transmitting motion from a windshield wiper motor to a windshield wiper arm is adjustable, lengthwise to permit accurate positioning of the windshield wiper arm in the parked position. The connecting arm includes a toothed surface meshing with an opposed toothed surface on an adjustable connecting arm end extension. The connecting arm end extension is secured to the end of the connecting arm with the opposing toothed surfaces in engagement. A releasable latching mechanism provides a compressive force between the connecting arm and connecting arm end extension to maintain the opposing toothed surfaces in meshing engagement when the arm extension is disposed in a suitable position. When the latching mechanism is released the connecting arm and the connecting arm end extension may be moved longitudinally relative to each other. The latching mechanism includes a bifurcated clip for securing a stud in a journal bearing at the end of the arm extension. A single latching operation retains the connecting arm in position in the linkage transmission and locks the adjustable end extension in proper position.
Inventors
- 👤 R Deibel
- 👤 W Reister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:29
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/06; B60S1/16; B60S1/18; B60S1/24; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/32442; Y10T403/32451; Y10T403/32606; Y10T403/32951; Y10T403/32967; Y10T403/70; Y10T403/7062; Y10T403/71; Y10T403/7152; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2151
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
167 words
In a linkage transmission assembly for a motor vehicle windshield wiper system; an adjustable connecting arm assembly comprising a connecting arm, a connecting arm end extension secured to said connecting arm in overlapping reLationship adjacent an end thereof for longitudinal sliding movement relative to said connecting arm, cooperating engaging means on opposed faces of said arm end extension and said connecting arm in the overlapping area for preventing relative longitudinal movement, a releasable latch lever assembly operatively secured at said overlapping area having camming means acting on said connecting arm assembly to apply a compressive force between said arm end extension and said connecting arm when said latching lever assembly is moved to a first position to thereby cause engagement of said cooperating engaging means and to effect release of said compressive force to permit disengagement of said cooperating engaging means when said latch lever assembly is moved to a second position whereby said arm extension and said connecting arm can move longitudinally relative to each other.
Claim 2
Dependent Claim
167 words
In a linkage transmission assembly for a motor vehicle windshield wiper system; an adjustable connecting arm assembly comprising a connecting arm, a connecting arm end extension secured to said connecting arm in overlapping reLationship adjacent an end thereof for longitudinal sliding movement relative to said connecting arm, cooperating engaging means on opposed faces of said arm end extension and said connecting arm in the overlapping area for preventing relative longitudinal movement, a releasable latch lever assembly operatively secured at said overlapping area having camming means acting on said connecting arm assembly to apply a compressive force between said arm end extension and said connecting arm when said latching lever assembly is moved to a first position to thereby cause engagement of said cooperating engaging means and to effect release of said compressive force to permit disengagement of said cooperating engaging means when said latch lever assembly is moved to a second position whereby said arm extension and said connecting arm can move longitudinally relative to each other.
Claim 3
Dependent Claim
41 words
An adjustable connecting arm assembly according to claim 1 wherein said latching lever assembly includes a latch lever having a bifurcated spring latch at an end thereof for engagement with a stud on an adjacent linkage element when in latched position.
Claim 4
Dependent Claim
76 words
An adjustable connecting arm assembly according to claim 1 wherein said latching lever assembly comprises a latch lever disposed in a plane parallel to said connecting arm assembly and a headed stud secured thereto intermediate the ends of said lever, the longitudinal axis of said headed stud forming the axis of rotation for said lever, said arm end extension and the end of said connecting arm lying intermediate the head of said stud and said lever.
Claim 5
Dependent Claim
22 words
An adjustable connecting arm assembly according to claim 3 wherein said latch lever assembly is attached to said stud for rotation therewith.
Claim 6
Dependent Claim
67 words
An adjustable connecting arm assembly according to claim 4 wherein said camming means comprises projections on the head of said stud extending toward a surface of said connecting arm end extension, said connecting arm end extension having recesses on said surface receiving said projections when said lever is in unlatched position to thereby relieve the compressive force acting between said connecting arm and said arm end extension.
Claim 7
Dependent Claim
77 words
An adjustable connecting arm assembly according to claim 3 wherein said camming means comprises a cam surface on said latch lever disposed adjacent a cooperating cam surface on said arm end extension whereby said cam surfaces engage to apply a compressive force between said arm end extension and said connecting arm when said latch lever is in latching position and said cam surfaces disengage to relieve the compressive force when said latch lever is in unlatched position.
Claim 8
Dependent Claim
62 words
An adjustable connecting arm assembly according to claim 6 wherein said arm end extension includes a journal bearing adjacent its free end for receiving a stud of an adjacent linkage element and wherein said latch lever includes a latch element for engaging the stud of the adjacent element to latch it in assembled position when said latch lever is in latched position.
References Cited (Backward Citations)
US2528678A
Cited
US2608707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |