Hoist device

• US 5,634,734 A
• Filed: 10/13/1995
• Issued: 06/03/1997
• Est. Priority Date: 10/13/1995
• Status: Expired due to Term

• Current Assignee: Jergens, Inc.
• Original Assignee: Jergens, Inc.
• Inventors: Klingenberg, James C., Fuller, Harry P., Schron, Jack H. Jr.
• Primary Examiner(s): KIM, HARRY CHONG HYUN
• Application Number:
  US08/542,947
• Time in Patent Office: 599 Days
• Field of Search: 403/164, 403/165, 403/78, 403/79, 403/119, 403/337, 294/1.1, 294/89, 294/82.1, 410/101, 59/95
• US Class Current: 403/78
• CPC Class Codes: B66C 1/66 for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
• CPC Class Codes: Y10T 403/32213 Articulate joint is a swivel
• CPC Class Codes: Y10T 403/32221 Articulate joint comprises pivoted clevis or channel bar
• CPC Class Codes: Y10T 403/32975 Rotatable

Abstract

A hoist device designed to fixedly engage a threaded bore on the outer surface of a load number as a die. The hoist device includes a low engaging stud having a threaded shank depending from an annular shoulder of the body portion of the stud, a base member having a body portion which supports the low engaging stud and allows for a free swivel engagement of the base member with the stud when the stud is fixed to the load member, a hoist ring which is pivotly connected to the base member.

Claims

1. A hoist device for fixed engagement to a threaded bore on an outer surface of a load member, said hoist device comprising:

a load engaging stud with a force supporting head, a cylindrical body portion with a lower, annular bearing shoulder and a threaded shank depending from said annular shoulder of said body portion;

a base member having a body portion with a central passage through said base member and allowing a free swivel engagement of said base member with said load engaging stud when said stud is fixed to said load member by threading said shank through said central passage into said load member bore until said lower bearing shoulder is drawn against said outer surface of said load member, said central passage of said base member having an upper recess for capturing said force supporting head and an upper annular shoulder means for transmitting a force from said base member to said supporting head when said base member is pulled from said load member;

a hoist ring having an upper bight portion and a lower generally cylindrical connecting portion;

a hoist ring support member with a body portion;

means for fixedly securing said support member to said base member while allowing said base member to swivel around said stud; and

, a slot in one of said members between said body portion of said support member and the body portion said base member for capturing said connecting portion of said hoist ring between said base member and said support member while allowing said hoist ring to pivot in said slot.

2. A hoist device as defined in claim 1, wherein said body portions are generally cylindrical.

3. A hoist device as defined in claim 1, wherein said slot is in said support member.

4. A hoist device as defined in claim 1, wherein said slot is in said base member.

5. A hoist device as defined in claim 1, wherein said hoist ring is forged steel.

6. A hoist device as defined in claim 1, wherein said hoist ring is cast iron.

7. A hoist device as defined in claim 1, wherein said hoist ring is formed from an elongated bar formed and welded into a ring.

8. A hoist device as defined in claim 1, wherein said securing means are separate bolts.

9. A hoist device as defined in claim 8, wherein said bolts extend from said base member and are threaded into said support member.

10. A hoist device as defined in claim 8, wherein said bolts extend from said support member and are threaded into said base member.

11. A hoist device as defined in claim 1, wherein said securing means includes a female threaded portion on one of said members and a matching male threaded portion on the other of said members whereby said members are secured by rotating one with respect to the other.

12. A hoist device as defined in claim 1, wherein said securing means includes a peripherally extending welded joint between said base member and said support member.

13. A hoist device as defined in claim 1, wherein said upper recess has a height greater than the height of said force supporting head by a first given amount so that the head freely rotates in said recess when said support member is secured to said base member.

14. A hoist device as defined in claim 13, wherein said lower bearing shoulder extends below said base member a second given amount when said upper annular shoulder means engages said force supporting head.

15. A hoist device as defined in claim 14, wherein said second given amount is substantially greater than said first given amount.

16. A hoist device as defined in claim 1, wherein said lower bearing shoulder extends below said base member a second given amount when said upper annular shoulder means engages said force supporting head.

17. A hoist device as defined in claim 1, wherein said stud includes a tool driving portion in said force supporting head.

18. A hoist device as defined in claim 17, wherein said tool driving portion is a socket recess on the top of said head.

19. A hoist device as defined in claim 17, wherein said tool driving portion includes a diametrically extending tool passage through said stud and above said shank and an access opening in said base member registered with said tool passage when said base member and stud are in a given relative angular position whereby an elongated tool can be extended through said opening into said tool passage to rotate said stud and base member in unison until said lower shoulder engages said surface of said load member.

20. A hoist device as defined in claim 19, including an elongated tool used in the hoist device, said elongated tool having a necked down portion between a first end extending into said tool passage and a second end for manual rotation, said necked down portion having a cross-section correlated to a desired amount of torque to be applied to said stud when it is assembled onto said load member.

21. A hoist device for fixed attachment to a threaded bore on an outer surface of a load member, said hoist device comprising:

a load engaging stud to be threaded into said bore and base member having a swivel engagement with said stud and adapted to rotate about said stud substantially a full circle of movement;

said stud having a head with an outer cylindrical surface with a first diameter, a height and a lower annular face, an intermediate cylindrical shank extending from said annular face and having a lower annular face, a second diameter smaller than said first diameter and a height from said head, a threaded shank to be mounted in said bore extending from said intermediate shank with a third diameter less than said second diameter;

said base member having a central opening therethrough to receive said stud, said central opening having an upper recess for rotationally receiving said head and a lower recess for rotationally receiving said intermediate shank with the height of said upper recess being greater than the height of said head and the height of said lower recess being less than the height of said intermediate shank whereby when said shank is threaded in said bore on said load member with said lower face of said intermediate shank against said load member, said base member will rotate about said intermediate shank;

a hoist ring having a lower generally cylindrical connecting portion;

a hoist ring support member with a body portion;

means for fixedly securing said support member to said base member while allowing said base member to swivel around said stud; and

slot means in one of said members for capturing said connecting portion of said hoist ring between said base member and said support member while allowing said hoist ring to pivot in said slot means.

22. A hoist device as defined in claim 21, wherein said body portion is generally cylindrical.

23. A hoist as defined in claim 21, wherein said stud includes a tool driving portion in said head.

24. A hoist device as defined in claim 23, wherein said tool driving portion includes a diametrically extending tool passage through said stud and above said shank and an access opening in said base member registered with said tool passage when said base member and stud are in a given relative angular position whereby an elongated tool can be extended through said opening into said tool passage to rotate said stud and base member in unison until said lower annular face of said intermediate cylindrical shank engages said surface of said load member.

25. A hoist device as defined in claim 24, including an elongated tool used in the hoist device, said elongated tool having a necked down portion between a first end extending into said tool passage and a second end for manual rotation, said necked down portion having a cross-section correlated to a desired amount of torque to be applied to said stud when it is assembled onto said load member.

26. A hoist device for fixed attachment to a threaded bore on an outer surface of a load member, said hoist device comprising:

a load engaging stud to be threaded into said bore and base member having a swivel engagement with said stud and adapted to rotate about said stud, said stud having a head with an outer cylindrical surface with a first diameter, a height and a lower annular face, an intermediate cylindrical shank extending from said annular face and having a lower annular face, a second diameter smaller than said first diameter and a height from said head, a threaded shank to be mounted in said bore extending from said intermediate shank with a third diameter less than said second diameter;

said base member having a central opening therethrough to receive said stud, said central opening having an upper recess for rotationally receiving said head and a lower recess for rotationally receiving said intermediate shank with the height of said upper recess being greater than the height of said head and the height of said lower recess being less than the height of said intermediate shank; and

, a hoist ring fixedly secured to said base member while allowing said base member to swivel around said stud.

27. A hoist device for fixed engagement to a threaded bore on an outer surface of a load member, said hoist device comprising:

a load engaging stud with a force supporting head, a cylindrical body portion with a lower, annular bearing shoulder and a threaded shank depending from said annular shoulder of said body portion;

a base member having a body portion with a central passage through said base member and allowing a free swivel engagement of said base member with said load engaging stud when said stud is fixed to said load member by threading said shank through said central passage into said load member bore until said lower bearing shoulder is drawn against said outer surface of said load member, said central passage of said base member having an upper recess for capturing said force supporting head and an upper annular shoulder means for transmitting a force from said base member to said supporting head when said base member is pulled from said load member;

a hoist ring having an upper bight portion and a lower generally cylindrical connecting portion;

a hoist ring support member with a body portion;

means for fixedly securing said support member to said base member while allowing said base member to swivel around said stud; and

, a slot in one of said members between said body portion of said support member and the body portion of said base member for capturing said connecting portion of said hoist ring between said base member and said support member while allowing said hoist ring to pivot in said slot, said stud including a tool driving portion in said force supporting head, said tool driving portion including a diametrically extending tool engaging portion in said stud and at least one access opening in said base member registered with said tool engaging portion when said base member and stud are in a given relative angular position whereby an elongated tool can be extended through said opening into said tool engaging portion to rotate said stud and base member in unison until said lower shoulder engages said surface of said load member.

28. A hoist device for fixed engagement to a threaded bore on an outer surface of a load member, said hoist device comprising:

a load engaging stud with a force supporting head, a cylindrical body portion with a lower, annular bearing shoulder and a threaded shank depending from said annular shoulder of said body portion;

a base member having a body portion with a central passage through said base member and allowing a free swivel engagement of said base member with said load engaging stud when said stud is fixed to said load member, said lower bearing shoulder for being drawn against said outer surface of said load member, and a hoist ring having an upper bight portion and a lower generally cylindrical connecting portion, said cylindrical connecting portion fixedly secured to said base member while allowing said base member to swivel around said stud, said stud including a tool driving portion in said force supporting head, said tool driving portion including a diametrically extending tool engaging portion in said stud and at least one access opening in said base member registered with said tool engaging portion when said base member and stud are in a given relative angular position whereby an elongated tool can be extended through said opening into said tool engaging portion to rotate said stud and base member in unison until said lower shoulder engages said surface of said load member.