Information
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Patent Grant
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6234101
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Patent Number
6,234,101
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Date Filed
Monday, December 20, 199924 years ago
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Date Issued
Tuesday, May 22, 200123 years ago
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Inventors
-
Original Assignees
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Examiners
- Morano; S. Joseph
- Vasudeva; Ajay
Agents
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CPC
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US Classifications
Field of Search
US
- 114 218
- 114 219
- 114 221 R
- 114 2301
- 114 23016
- 024 115 K
- 024 115 G
- 024 115 R
- 024 136 R
- 024 265 CD
- 410 55
- 410 96
- 410 101
- 410 102
- 410 107
- 410 111
- 410 116
- 410 343
- 410 199
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International Classifications
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Abstract
A chock wherein a movable inner member is received for relative vertical movement in a housing with the inner member having a conventional diagonal slot therein for receiving a line. The housing has a central counter bore at the top thereof, and a smaller bore extending therefrom and said inner member is received in the housing for relative axial movement between a depressed inoperative position and an upper operative position. A set screw carried by the housing engages a slot in the inner member for limiting relative axial movement therebetween, while a spring loaded poppet carried by the housing is engageable with a detent near the bottom of the inner member to resiliently hold the inner member vertically stationary relative to the housing when in its upper position.
Description
BACKGROUND OF THE INVENTION
1. FIELD OF THE INVENTION
This invention relates generally to chocks and more particularly to chocks having a depressed or concealed position and a raised operative position.
2. DESCRIPTION OF THE PRIOR ART
No prior art was found relating to chocks having a depressed position and a raised operative position. Some prior art cleats have such positions; however their structures such as shown in my U.S. Pat. No. 4,809,634; 5,535,694 and 5,301,627 are entirely different than the structure of the present invention which is very compact durable and easily serviced.
SUMMARY OF THE INVENTION
A chock, having a conventional appearing slot in the upper end thereof for receiving a line, has a lower portion projecting downwardly therefrom and telescopically received in an opening of a base or housing portion; the later being adapted to be mounted on a boat hull in a non obtrusive manner. A poppet, carried by the base portion, can alternately engage or disengage a detent in the lower portion to thereby hold the chock in its upper position and, when in its lower position, the poppet acts as an anti rattle device. An abutting member is threaded into and carried by the base portion and engages an elongated grove in the lower portion to both limit vertical and rotational movement of the lower portion relative to the base. This abutting member is threaded into the base portion and can be screwed outwardly out of engagement with the groove to allow the upper portion of the chock to be removed from the base and can be screwed inwardly to fit in the elongated groove to perform at its function. As wear takes place, the abutting member can be adjusted.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is a plan view of a chock made according to this invention:
FIG. 2
is a side elevational view of the chock of
FIG. 1
;
FIG. 3
is an end elevational view of the chock of
FIGS. 1 and 2
of this invention;
FIG. 4
is a cross sectional view taken along the lines
4
—
4
in
FIG. 1
, with the chock in its depressed or concealed position; and
FIG. 5
is a view taken like
FIG. 4
with the chock in its raised operative position.
DESCRIPTION OF THE PREFERRED EMBODIMENT
A chock assembly shown generally at
10
includes a base portion
12
having a central vertically extending cylindrical bore
13
, a larger elongated counterbore
14
coaxial therewith and an elongated flange portion
15
surrounding the topmost end of the counterbore; the latter being adapted to be mounted flush on the top of a vessel's deck or other portion of the hull by fasteners extending through a pair of openings
16
in the opposed ends of the flange
15
. A telescope member
18
has an enlarged upper end
19
with a conventional chock slot
20
therein; the periphery of the upper end
19
being adapted to be closely received in the counterbore
14
, and a cylindrical lower end
21
fittingly received in the cylindrical bore
13
for relative vertical movement. The cylindrical bore
14
terminates at its lower end in an elongated shoulder
22
, with the bore
13
commencing with the shoulder.
A pair of horizontally opposed threaded openings
23
and
24
are formed in the shoulder
22
, and project from the outer surface of the shoulder to terminate at the bore
13
. A vertically elongated slot
26
is formed in one axial side of the lower end
21
so as to be aligned with the threaded opening
23
, with the slot ending in an upper shoulder
27
and a lower shoulder
28
. An abutting member in the form of a set screw
29
is threaded into the threaded opening
23
with the inner end received in the slot
26
for relative vertical movement; the set screw abutting the upper shoulder
27
to assist limiting downward movement of the member
18
(as shown in
FIG.4
) or, as shown in
FIG. 5
, abutting the lower shoulder
28
to limit upward movement of the member
18
. The shoulder
30
between the upper end
19
and the lower end
21
of the member
18
being abuttable with the upper surface of the shoulder
22
to also limit downward movement of the member
18
.
The lower end
21
of the member
18
has a detent
32
formed therein on the side thereof opposed to the slot
26
and positioned near the bottom end
33
of the member
18
. A poppet
34
is received in the threaded opening
24
at the inner end thereof and is engageable in the detent
32
. A spring means in the form of a coiled compression spring
35
is received in the opening
24
and compressed between the poppet
34
and a second set screw
36
, whereby the poppet
34
resiliently engages in the detent
32
to resiliently inhibit downward movement of the member
18
when in its upper operative position. Pressing on the top of the member
28
over comes the poppet
34
and the member
18
moves to its downward concealed position as seen in FIG.
4
. At this time, the bottom
33
of the member
18
is spaced from the bottom
37
of the base portion
12
. A drain hole
38
is provided in the bottom
37
to drain any water which may inadvertently enter the base portion
12
. The hole
38
may drain directly into the bilge or be connected thereto by a conduit fitted into the hole
38
. When the member
18
is in its lower position, the poppet
34
resiliently engages the surface of the lower end
21
and acts as an anti-rattle device. While only a single embodiment of this invention has been shown and described, it is understood that many changes therein can be made without departing from the scope of this invention as defined by the following claims.
Claims
- 1. A chock having a raised operative position and a depressed inoperative position, comprisingA) a housing including an attaching flange and a base portion extending downwardly therefrom, B) a vertically movable member having an enlarged upper end and a lower end with said lower end formed integrally with said upper end and extending downwardly therefrom, and said lower end being smaller in cross sectional area than said upper end, C) said housing having an upper counterbore and a lower bore extending downwardly therefrom and having a shoulder between said upper counterbore and said lower bore, D) said movable member having a raised operative position and a depressed inoperative position and, when in its depressed position, having the enlarged upper end fittingly received in said counterbore of said housing and having the lower end fittingly received in said lower bore, E)a detent formed in said lower end of said movable member with said lower end having a side thereof adjacent said detent, F) a spring loaded poppet disposed in said shoulder and engageable with said detent when said movable member is in its upper position, and said poppet resiliently engaging said side of said lower end of said movable member that is in vertical alignment with said poppet when said movable member is in its lower position, G) a vertically elongated slot in said lower end of said movable member, and H ) a first adjustable set screw disposed in said shoulder and engageable in said slot to limit upward movement of said movable member relative to said housing, said housing has a second laterally extending threaded opening therein removably receiving said first adjustable set screw, with said first adjustable set screw being removable from the exterior of said housing so that said chock can be disassembled, and wherein said set screws are coaxially aligned.
- 2. A chock having a raised operative position and a depressed inoperative position, comprisingA) a housing including an attaching flange and a base portion extending downwardly therefrom, B) a vertically movable member having an enlarged upper end and a lower end with said lower end formed integrally with said upper end and extending downwardly therefrom, and said lower end being smaller in cross sectional area than said upper end, C) said housing having an upper counterbore and a lower bore extending downwardly therefrom and having a shoulder between said upper counterbore and said lower bore, D) said movable member having a raised operative position and a depressed inoperative position and, when in its depressed position, having the enlarged upper end fittingly received in said counterbore of said housing and having the lower end fittingly received in said lower bore, E) a detent formed in said lower end of said movable member, F) a spring loaded poppet disposed in said shoulder and engageable with said detent when said movable member is in its upper position, and said poppet resiliently engaging the side of said lower end of said movable member that is in vertical alignment with said poppet when said movable member is in its lower position G) a vertically elongated slot in said lower end of said movable member, and H ) a first adjustable set screw disposed in said shoulder and engageable in said slot to limit upward movement of said movable member relative to said housing, said housing has a lateral first threaded opening therein receiving said poppet, a second set screw received in said threaded opening and a compression spring engageably positioned between said second set screw and said poppet for urging said poppet inwardly and said housing has a second laterally extending threaded opening therein removably receiving said first adjustable set screw, with said First adjustable set screw being removable from the exterior of said housing so that said chock can be removed, and wherein said set screws are coaxially aligned.
US Referenced Citations (19)