US3638896A - Shock absorbing device for a boat seat - Google Patents

Shock absorbing device for a boat seat Download PDF

Info

Publication number
US3638896A
US3638896A US38732A US3638896DA US3638896A US 3638896 A US3638896 A US 3638896A US 38732 A US38732 A US 38732A US 3638896D A US3638896D A US 3638896DA US 3638896 A US3638896 A US 3638896A
Authority
US
United States
Prior art keywords
seat
link
link arms
arms
rod
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.)
Expired - Lifetime
Application number
US38732A
Inventor
John Werner Lindstrom
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xylem Water Solutions Zelienople LLC
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3638896A publication Critical patent/US3638896A/en
Assigned to F.B. LEOPOLD COMPANY, INC., THE, A CORP. OF DE. reassignment F.B. LEOPOLD COMPANY, INC., THE, A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: LEOPOLD COMPANY, INC.
Assigned to F.B. LEOPOLD COMPANY, INC., THE reassignment F.B. LEOPOLD COMPANY, INC., THE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEOPOLD COMPANY, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/502—Seat suspension devices attached to the base of the seat
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/505—Adjustable suspension including height adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/506—Seat guided by rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/54—Seat suspension devices using mechanical springs
    • B60N2/544—Compression or tension springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/54—Seat suspension devices using mechanical springs
    • B60N2/546—Leaf- or flexion springs

Definitions

  • a pressure spring means 20, FIG. 3, in the form of a helical coil spring is located between the seat frame 7 and the base plate 1 to retard downward movements of the seat.
  • the linkage system comprises a forward pair of parallel spaced link arms 3a, 3b which at their lower ends are pivotable about a first common pivot axis 3c. There is also a rearward pair of parallel spaced link arms 3d, 3e, which at their lower ends are pivotable about a second common pivot axis 3f.
  • each of the two link arms at one side of the seat pivotally support a buffer arm extending downwardly and having its free lower end portion resting on an elastic buffer member, the free ends of the two buffer arms being located adjacent each other and subjected to the action of common adjusting means provided to enable a desired initial pressure of the two buffer arms on the elastic buffer member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Packaging Frangible Articles (AREA)

Abstract

A shock absorbing device for a boat seat supported by a link system to move vertically downwardly against the action of spring means and damping means cooperating with the link system to damp upward and downward movements of the seat.

Description

I United States Patent 1151 3,638,896 Lindstrom 51 Feb. 1, 1972 [54] SHOCK ABSORBING DEVICE FOR A [56] References Cited B AT SEA 0 T UNITED STATES PATENTS [72] g Linds'mm' Rmkncby 1,404,031 1/1922 Kelman ....24x/4o0 x we 2.546.268 3/1951 Legris ..248/399 [22] Filed: May 19, 1970 2,953,l9l 9/1960 Brendcl .248/399 [2l] Appl. No.1 38,732 Primary ExaminerWilliam H. Schultz Attorney-Young 8L Thompson [30] Foreign Application Priority Data ABSTRACT May 22, 1969 Sweden ..7227 A Shock absorbing device for a boat Scat supported by a link system to move vertically downwardly against the action of [52] U.S.Cl ..248/399 Spring means and damping means cooperating with the link 5 system to damp upward and downward movements of the seat.
1e o are 3 Claims, 4 Drawing Figures 8 -8 19 I -17 u 5 J I u :I
PATENTED FEB 11972 IN VEN TOR.
da/m/ M'P/VE/P Z //v05 71PM BY SHOCK ABSORBING DEVICE FOR A BOAT SEAT The present invention relates to a shock absorbing device for a boat seat supported by means of a linkage system having transverse pivot axes and adapted to permit vertical downward movements of the seat against the action of a pressure spring means located between the seat frame and a base supporting the linkage system.
Motorboats, when travelling at high speed, are regularly subject to violent blows and shocks as a result of the effect of waves against the hull of the vessel. Such shocks are particularly manifest in choppy water and are in part propagated to the seats of the boat, causing discomfort and, on occasion, pain to persons seated therein.
The present invention provides a shock absorbing device for a boat seat which reduces the shocks which are being transmitted to the occupants thereof. The device according to the invention is characterized in that the linkage system comprises a forward pair of parallel spaced link arms pivotable at their lower ends about a first common pivot axis and a rearward pair of parallel spaced link arms pivotable at their lower ends about a second pivot axis, the lower ends of the link arms at one side of the seat being interconnected by a synchronizing link member so as to provide synchronous movements up and down of the forward and the rearward pairs of link arms, the upper ends of the link arms being hingedly connected to the seat frame through link members and the upper end portions of the link arms which are connected through link rods with the ends of a lever arm which is journaled between its ends on a supporting member secured to the seat frame.
The invention will now be described in more detail with reference to the accompanying drawing in which FIG. 1 is a side view of a boat seat provided with a shock absorbing device according to the present invention,
FIG. 2 is a view of the shock absorbing device seen from the opposite side to that shown in FIG. 1,
FIG. 3 is a back view of the device of FIGS. 1 and 2, and
FIG. 4 is a separate view of a number of elements which according to FIG. 1 are effective in retarding upward movement of the boat seat.
In the drawing, numeral 1 designates a base plate which is preferably of a nonmagnetic material. Secured to the base plate are two bearing brackets 2a, 2b for a linkage system supporting a seat frame 7 with the seat so as to permit vertical movements of the seat.
A pressure spring means 20, FIG. 3, in the form of a helical coil spring is located between the seat frame 7 and the base plate 1 to retard downward movements of the seat.
The linkage system comprises a forward pair of parallel spaced link arms 3a, 3b which at their lower ends are pivotable about a first common pivot axis 3c. There is also a rearward pair of parallel spaced link arms 3d, 3e, which at their lower ends are pivotable about a second common pivot axis 3f.
The upper ends of the arms 3a, 3b are connected by a horizontal shaft member 33, and the upper ends of the arms 3d, 3e are connected by a horizontal shaft member 3h.
As will be seen from FIG. 1 the lower ends of the link arms 3a, 3d at one side of the seat are formed with lugs 4a, 4b which are directed in the same sense of rotation about the pivot axis 30 and 3f, respectively. The lugs 4a, 4b are interconnected by a synchronizing link member 4 so as to provide synchronous movements up and down of the forward and the rearward pairs of link arms as will be understood from the drawing.
The upper ends of the link arms are journaled by means of the members 3g and 3/1 in bearing members 5 attached to transverse plates 6, 6a which are hinged by means of hinge members 8 to the frame 7 of the seat to form link members between the frame 7 and the link arms 3a, 3b, 3d, Be.
In order to prevent horizontal movement of the seat frame 7, the upper end portions of the link arms 3a and 3d are connected through link rods 19, 19a with the ends of a lever arm 17 which is journaled between its ends at 17a on a supporting member 17b secured to the seat frame 7.
In order to damp upward movements of the seat the two link arms 3a, 3d at one side of the seat cooperate with two elastic bushings 16, 16a mounted on a substantially horizontal rod 13. Each bushing is located between two washers 12 and 15 on the rod, the outer washer 12 being mounted on the adjacent link arm 3a and 3d, respectively, by means of a pin 12a rotatably mounted in the link arm. The washers 12 have a center hole to permit the rod 13 to slide freely therein. The other washers 15 are adjustable to any desired position along the rod 13 by means of nuts 14 to obtain any desired initial compression of the bushings 16, 16a.
In order to damp downward movements of the seat each of the two link arms 3e, 3b, FIG. 2, at one side of the seat pivotally support a curved buffer arm 9 and 90, respectively, extending downwardly and having its substantially horizontal free end resting on an elastic buffer member 10 and 10a. The free ends of the two buffer arms may be pressed downwardly by a common adjusting means in the form of a nut Ila screwed on a screw 11 secured to the plate 1 so as to vary the initial compression of the buffer members 10 and 100.
Thus the damp members 16, 16a and 10, 10a are easily adjustable for the weight of the person using the seat and for ob taining any desired damping effect.
What I claim is:
1. A shock absorbing device for a boat seat supported by means of a linkage system having transverse pivot axes and adapted to permit vertical downward movements of the seat against the action of a pressure spring means located between the seat frame and a base supporting the linkage system, characterized in that the linkage system comprises a forward pair of parallel spaced link arms pivotable at their lower ends about a first common pivot axis and a rearward pair of parallel spaced link arms pivotable at their lower ends about a second common pivot axis, the lower ends of the link arms at one side of the seat being interconnected by a synchronizing link member so as to provide synchronous movements up and down of the forward and the rearward pairs of link arms, the upper ends of the link arms being hingedly connected to the seat frame through link members and the upper end portions of the link arms which are connected through link rods with the ends of a lever arm which is journaled between its ends on a supporting member secured to the seat frame.
2. A device according to claim 1, characterized in that upward movements of the two link arms at one side of the seat are damped by means of two elastic bushings mounted on a substantially horizontal rod, each bushing being located between two washers on the rod, the outer washer being mounted on the adjacent link arm and having a center hole to permit the rod to slide freely therein, whereas the other washer is adjustable to any desired position along the rod to obtain any desired initial compression of the elastic bushings.
3. A device according to claim 2, characterized in that each of the two link arms at one side of the seat pivotally support a buffer arm extending downwardly and having its free lower end portion resting on an elastic buffer member, the free ends of the two buffer arms being located adjacent each other and subjected to the action of common adjusting means provided to enable a desired initial pressure of the two buffer arms on the elastic buffer member.

Claims (3)

1. A shock absorbing device for a boat seat supported by means of a linkage system having transverse pivot axes and adapted to permit vertical downward movements of the seat against the action of a pressure spring means located between the seat frame and a base supporting the linkage system, characterized in that the linkage system comprises a forward pair of parallel spaced link arms pivotable at their lower ends about a first common pivot axis and a rearward pair of parallel spaced link arms pivotable at their lower ends about a second common pivot axis, the lower ends of the link arms at one side of the seat being interconnected by a synchronizing link member so as to provide synchronous movements up and down of the forward and the rearward pairs of link arms, the upper ends of the link arms being hingedly connected to the seat frame through link members and the upper end portions of the link arms which are connected through link rods with the ends of a lever arm which is journaled between its ends on a supporting member secured to the seat frame.
2. A device according to claim 1, characterized in that upward movements of the two link arms at one side of the seat are damped by means of two elastic bushings mounted on a substantially horizontal rod, each bushing being located between two washers on the rod, the outer washer being mounted on the adjacent link arm and having a center hole to permit the rod to slide freely therein, whereas the other washer is adjustable to any desired position along the rod to obtain any desired initial compression of the elastic bushings.
3. A device accoRding to claim 2, characterized in that each of the two link arms at one side of the seat pivotally support a buffer arm extending downwardly and having its free lower end portion resting on an elastic buffer member, the free ends of the two buffer arms being located adjacent each other and subjected to the action of common adjusting means provided to enable a desired initial pressure of the two buffer arms on the elastic buffer member.
US38732A 1969-05-22 1970-05-19 Shock absorbing device for a boat seat Expired - Lifetime US3638896A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE07227/69A SE338732B (en) 1969-05-22 1969-05-22

Publications (1)

Publication Number Publication Date
US3638896A true US3638896A (en) 1972-02-01

Family

ID=20270787

Family Applications (1)

Application Number Title Priority Date Filing Date
US38732A Expired - Lifetime US3638896A (en) 1969-05-22 1970-05-19 Shock absorbing device for a boat seat

Country Status (5)

Country Link
US (1) US3638896A (en)
DE (1) DE7018819U (en)
FR (1) FR2048675A5 (en)
GB (1) GB1244589A (en)
SE (1) SE338732B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792896A (en) * 1971-09-20 1974-02-19 Budd Co Crash attenuation apparatus for a seat in a vehicle
US3908953A (en) * 1973-12-07 1975-09-30 Herscheal W Miller Support apparatus for a seat
US6386635B1 (en) 2000-08-18 2002-05-14 Gary A. Ralph Shock absorbing boat seat assembly
US6733084B2 (en) 2002-02-06 2004-05-11 Moeller Marine Products Boat comfort seat assembly
CN108657958A (en) * 2018-04-08 2018-10-16 杨煜海 A kind of damping crane seat
US20220234482A1 (en) * 2019-05-31 2022-07-28 Delta Kogyo Co., Ltd. Link mechanism, vehicle upper storage-rack structure and seat suspension mechanism

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1404031A (en) * 1920-11-10 1922-01-17 Joseph N Kelman Cushion for vehicles
US2546268A (en) * 1947-10-16 1951-03-27 Louis Legris Adjustable seat for farm implements
US2953191A (en) * 1956-11-06 1960-09-20 Bremshey & Co Seats for motor vehicles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1404031A (en) * 1920-11-10 1922-01-17 Joseph N Kelman Cushion for vehicles
US2546268A (en) * 1947-10-16 1951-03-27 Louis Legris Adjustable seat for farm implements
US2953191A (en) * 1956-11-06 1960-09-20 Bremshey & Co Seats for motor vehicles

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792896A (en) * 1971-09-20 1974-02-19 Budd Co Crash attenuation apparatus for a seat in a vehicle
US3908953A (en) * 1973-12-07 1975-09-30 Herscheal W Miller Support apparatus for a seat
US6386635B1 (en) 2000-08-18 2002-05-14 Gary A. Ralph Shock absorbing boat seat assembly
US6733084B2 (en) 2002-02-06 2004-05-11 Moeller Marine Products Boat comfort seat assembly
CN108657958A (en) * 2018-04-08 2018-10-16 杨煜海 A kind of damping crane seat
CN108657958B (en) * 2018-04-08 2019-08-06 高邮市怡和车辆附件有限公司 A kind of damping crane seat
US20220234482A1 (en) * 2019-05-31 2022-07-28 Delta Kogyo Co., Ltd. Link mechanism, vehicle upper storage-rack structure and seat suspension mechanism

Also Published As

Publication number Publication date
FR2048675A5 (en) 1971-03-19
DE7018819U (en) 1970-09-03
SE338732B (en) 1971-09-13
GB1244589A (en) 1971-09-02

Similar Documents

Publication Publication Date Title
US3369840A (en) Chair tilting mechanism
KR880013505A (en) Pivoting Support for Chairs
US3638896A (en) Shock absorbing device for a boat seat
KR890007955A (en) Seats for traveling goods
GB1133157A (en) Resilient car-seat carriage
JPS60191836A (en) Damper device for vehicle seat
US3027191A (en) Chair construction
SU528858A3 (en) Car seat suspension
JPS6224288B2 (en)
GB1330683A (en) Vehicle seat assembly
SU507214A3 (en) Vehicle Seat Suspension
US2910112A (en) Resilient vehicle seat mounting and elastic joint therefor
US2441251A (en) Chair iron for tilting seats
GB1011267A (en) Chair with double pivot spring assembly
US2347931A (en) Theater seat
US3908953A (en) Support apparatus for a seat
US3602475A (en) Shock-absorbing seat structure
US3219386A (en) Seat assembly
US3195951A (en) Rocking device
US1980748A (en) Chair
US1619503A (en) Chair
JPS6114013B2 (en)
US1301429A (en) Chair.
US3536288A (en) Resilient seat support
US2014651A (en) Hammock

Legal Events

Date Code Title Description
AS Assignment

Owner name: F.B. LEOPOLD COMPANY, INC., THE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LEOPOLD COMPANY, INC.;REEL/FRAME:004109/0648

Effective date: 19820708

Owner name: F.B. LEOPOLD COMPANY, INC., THE, A CORP. OF DE.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:LEOPOLD COMPANY, INC.;REEL/FRAME:004015/0220

Effective date: 19820708