EP1064906A2 - Attachment device - Google Patents
Attachment device Download PDFInfo
- Publication number
- EP1064906A2 EP1064906A2 EP00303652A EP00303652A EP1064906A2 EP 1064906 A2 EP1064906 A2 EP 1064906A2 EP 00303652 A EP00303652 A EP 00303652A EP 00303652 A EP00303652 A EP 00303652A EP 1064906 A2 EP1064906 A2 EP 1064906A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- stud
- clip
- attachment device
- shaft
- slot
- 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- Withdrawn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
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1049—Attachment, suspending or supporting means for patients
- A61G7/1051—Flexible harnesses or slings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1073—Parts, details or accessories
- A61G7/1078—Clamps for flexible harnesses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1049—Attachment, suspending or supporting means for patients
- A61G7/1061—Yokes
Definitions
- This invention relates to an attachment device for attaching a sling to a hoist, particularly but, not necessarily exclusively, an invalid hoist.
- an attachment device comprising a headed stud, which is secured to the lifting arm of a hoist, and a plate-like clip, which is connected to a sling.
- the clip is provided with a slot comprising a first portion through which the head of the stud will pass, a second portion through which the head of the stud will not pass and a passage joining the first portion to the second portion.
- the first portion of the slot is aligned with the head of the stud.
- the clip is then placed over the stud and moved relative to the stud until the shaft of the stud is disposed in the second portion of the slot.
- the second portion of the slot receives the shaft of the stud with a clearance so that the clip can pivot about the shaft.
- the passage receives the shaft of the stud as a friction fit to discourage unintentional movement of the clip from an operative position in which the shaft of the stud is disposed in the second slot portion to a disengageable position in which the shaft of the stud is disposed in the first slot portion.
- GB 2293857A discloses a clip also provided with a slot having first and second portions similar to those referred to above and a passage joining the first portion to the second portion.
- the passage over at least part of its length has a width which is less than the cross-sectional dimension of the shaft of the stud and the clip has a weakened zone adjacent to each side of the passage so that the clip can deform to allow the shaft of the stud to pass along the passage between the first and second slot portions.
- the present invention seeks to provide an improved attachment device which overcomes the aforementioned drawbacks.
- an attachment device for attaching a sling to a hoist
- the attachment device comprising a headed stud and a plate-like clip having a body moulded in plastics material, the body having a slot comprising a first portion through which the head of the stud will pass, a second portion through which the head of the stud will not pass and a third portion joining the first and second portions
- the clip including two insert moulded elements on opposite sides, respectively, of the third portion, the insert moulded elements defining a gate in the third portion intermediate the first and second portions, the gate having a width which is slightly less than the cross sectional dimension of the shaft of the stud.
- the insert moulded elements are of more durable plastics material than the material of the body of the clip.
- the inserts may be of resilient material but are more preferably of non-resilient material and, in the latter case, the inserts, preferably, have a hole extending therethrough from one side to the other side of the clip.
- the attachment device shown therein comprises a stud 10 secured to a lifting arm 11 of an invalid hoist, e.g. a hoist according to GB 2184706B, and a clip 12 connected by a flexible strap 13 to a sling 14.
- an invalid hoist e.g. a hoist according to GB 2184706B
- a clip 12 connected by a flexible strap 13 to a sling 14.
- the stud 10 has a shaft 15 of circular cross section and a round head 16.
- the clip 12 is plate-like and of generally rectangular shape. It is made of plastics material, typically glass fibre reinforced nylon.
- the clip 12 has a slot 17 comprising a first part circular end portion 17 a , a second part circular end portion 17 b spaced from the portion 17 a , and a neck portion 17 c joining the portions 17 a and 17 b .
- the diameter of the slot portion 17 a is slightly larger than the diameter of the head 16 of the stud 10.
- the diameter of the slot portion 17 b is less than the diameter of the head 16 of the stud 10 and slightly larger than the diameter of the shaft 15 of the stud 10 so that when the shaft 15 is disposed in the slot portion 17 b the clip can pivot freely about the stud 10 but cannot disengage therefrom.
- the slot portion 17 c has a width equal to or slightly greater than the diameter of the shaft 15.
- the clip 12 also includes two insert moulded elements 18 and 19 on opposite sides, respectively, of the neck portion 17 c .
- These insert moulded elements 18 and 19 define a gate in the neck portion 17 c intermediate the first and second portions 17 a and 17 b , respectively.
- the gate has a width which is slightly less than the diameter of the shaft 15.
- the insert moulded elements 18 and 19 are of more durable plastics material than the body of the clip and are typically made of an acetyl resin which is a non-resilient material.
- the inserts 18 and 19 comprise a generally cylindrical body part 20 having a hole 21 extending axially therethrough and an ear 22 projecting from one side of the body 20 in order to prevent the insert moulded elements 18 and 19 from rotating in use.
- Transverse slots 23 are provided so that the clip can be attached to the strap 13.
- the part circular slot portion 17 a is aligned with the head 16 of the stud 10.
- the clip 12 is then placed over the stud 10.
- a force is then applied to the clip 12 to cause the clip to slide relative to the stud 10 until the shaft 15 of the stud is disposed in the part circular slot portion 17 b .
- the shaft 15 of the stud 10 outwardly deforms the elements 18 and 19.
- These elements 18 and 19 must also be outwardly deformed to allow the stud to return to a disengageable position in which the shaft 15 of the stud is disposed in the slot portion 17 a .
- the clip is, therefore, unlikely to become unintentionally disengaged from the stud.
- the clip moves past the gate defined by the elements 18 and 19 with a resounding click. This gives both attendant and user a sense of great security.
- the gate is preferably mid-way or substantially mid-way between the slot portion 17 a and 17 b .
- the shaft 15 of the stud will therefore self locate within the neck portion 17 c in abutment with the gate. As soon as a load is applied to the clip, the shaft of the stud will move into an engaged position. This will prevent a situation in which the clip fails to be engaged.
- the insert moulded elements 18 and 19 could be of resilient material and, in this case, no hole need be provided therein.
- the slot portion 17 c need not be rectilinear. It could be of any other appropriate shape.
Landscapes
- Health & Medical Sciences (AREA)
- Nursing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Clamps And Clips (AREA)
- Insertion Pins And Rivets (AREA)
- Connection Of Plates (AREA)
Abstract
Description
- This invention relates to an attachment device for attaching a sling to a hoist, particularly but, not necessarily exclusively, an invalid hoist.
- It is known to provide an attachment device comprising a headed stud, which is secured to the lifting arm of a hoist, and a plate-like clip, which is connected to a sling. The clip is provided with a slot comprising a first portion through which the head of the stud will pass, a second portion through which the head of the stud will not pass and a passage joining the first portion to the second portion. In order to place the clip on the stud, the first portion of the slot is aligned with the head of the stud. The clip is then placed over the stud and moved relative to the stud until the shaft of the stud is disposed in the second portion of the slot. The second portion of the slot receives the shaft of the stud with a clearance so that the clip can pivot about the shaft. The passage receives the shaft of the stud as a friction fit to discourage unintentional movement of the clip from an operative position in which the shaft of the stud is disposed in the second slot portion to a disengageable position in which the shaft of the stud is disposed in the first slot portion.
- However, these known clips occasionally unintentionally disengaged from the studs.
- GB 2293857A discloses a clip also provided with a slot having first and second portions similar to those referred to above and a passage joining the first portion to the second portion. The passage over at least part of its length has a width which is less than the cross-sectional dimension of the shaft of the stud and the clip has a weakened zone adjacent to each side of the passage so that the clip can deform to allow the shaft of the stud to pass along the passage between the first and second slot portions. This clip proved unsatisfactory because the manufacturing tolerances were hard to hold and this resulted in clips which were often difficult to disengage.
- The present invention seeks to provide an improved attachment device which overcomes the aforementioned drawbacks.
- According to the present invention, there is provided an attachment device for attaching a sling to a hoist, the attachment device comprising a headed stud and a plate-like clip having a body moulded in plastics material, the body having a slot comprising a first portion through which the head of the stud will pass, a second portion through which the head of the stud will not pass and a third portion joining the first and second portions, the clip including two insert moulded elements on opposite sides, respectively, of the third portion, the insert moulded elements defining a gate in the third portion intermediate the first and second portions, the gate having a width which is slightly less than the cross sectional dimension of the shaft of the stud.
- Preferably, the insert moulded elements are of more durable plastics material than the material of the body of the clip. The inserts may be of resilient material but are more preferably of non-resilient material and, in the latter case, the inserts, preferably, have a hole extending therethrough from one side to the other side of the clip.
- The invention will now be more particularly described, with reference to the accompanying drawings, in which:
- Figure 1 is a perspective view of one embodiment of an attachment device according to the invention; and
- Figure 2 is a plan view of the clip shown in Figure 1 on an enlarged scale.
-
- Referring to the drawings, the attachment device shown therein comprises a
stud 10 secured to alifting arm 11 of an invalid hoist, e.g. a hoist according to GB 2184706B, and aclip 12 connected by aflexible strap 13 to asling 14. - The
stud 10 has ashaft 15 of circular cross section and around head 16. - The
clip 12 is plate-like and of generally rectangular shape. It is made of plastics material, typically glass fibre reinforced nylon. Theclip 12 has aslot 17 comprising a first part circular end portion 17a, a second part circular end portion 17b spaced from the portion 17a, and a neck portion 17c joining the portions 17a and 17b. - The diameter of the slot portion 17a, is slightly larger than the diameter of the
head 16 of thestud 10. The diameter of the slot portion 17b is less than the diameter of thehead 16 of thestud 10 and slightly larger than the diameter of theshaft 15 of thestud 10 so that when theshaft 15 is disposed in the slot portion 17b the clip can pivot freely about thestud 10 but cannot disengage therefrom. The slot portion 17c has a width equal to or slightly greater than the diameter of theshaft 15. - The
clip 12 also includes two insertmoulded elements moulded elements shaft 15. The insertmoulded elements inserts cylindrical body part 20 having ahole 21 extending axially therethrough and anear 22 projecting from one side of thebody 20 in order to prevent the insertmoulded elements - It will be appreciated that in order for the
shaft 15 to pass from the slot portion 17a to the slot portion 17b, the insertmoulded elements -
Transverse slots 23 are provided so that the clip can be attached to thestrap 13. - In order to place the clip on the stud, the part circular slot portion 17a is aligned with the
head 16 of thestud 10. Theclip 12 is then placed over thestud 10. A force is then applied to theclip 12 to cause the clip to slide relative to thestud 10 until theshaft 15 of the stud is disposed in the part circular slot portion 17b. During the sliding movement, theshaft 15 of thestud 10 outwardly deforms theelements elements shaft 15 of the stud is disposed in the slot portion 17a. The clip is, therefore, unlikely to become unintentionally disengaged from the stud. Also, the clip moves past the gate defined by theelements - The gate is preferably mid-way or substantially mid-way between the slot portion 17a and 17b. The
shaft 15 of the stud will therefore self locate within the neck portion 17c in abutment with the gate. As soon as a load is applied to the clip, the shaft of the stud will move into an engaged position. This will prevent a situation in which the clip fails to be engaged. - The embodiment described above is given by way of example only and various modifications will be apparent to persons skilled in the art without departing from the scope of the invention. For example, the insert
moulded elements
Claims (5)
- An attachment device for attaching a sling to a hoist, the attachment device comprising a headed stud (10) and a plate-like clip (12) having a body moulded in plastics material, the body having a slot (17) comprising a first portion (17a) through which the head of the stud will pass, a second portion (17b) through which the head of the stud will not pass and a third portion (17c) joining the first and second portions, the clip including two insert moulded elements (18 and 19) on opposite sides, respectively, of the third portion, the insert moulded elements defining a gate in the third portion intermediate the first and second portions, the gate having a width which is slightly less than the cross sectional dimension of the shaft (15) of the stud.
- An attachment device as claimed in claim 1, wherein the insert moulded elements (18 and 19) are of more durable plastics than the material of the body of the clip.
- An attachment device as claimed in claim 1 or claim 2, wherein the inserts (18 and 19) are of resilient material.
- An attachment device as claimed in claim 1 or claim 2, wherein the inserts (18 and 19) are of non-resilient material.
- An attachment device as claimed in claim 4, wherein the inserts (18 and 19) have a hole (21) extending therethrough from one side to the other side of the clip.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9915011A GB2352471B (en) | 1999-06-29 | 1999-06-29 | Attachment device |
GB9915011 | 1999-06-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1064906A2 true EP1064906A2 (en) | 2001-01-03 |
EP1064906A3 EP1064906A3 (en) | 2001-11-28 |
Family
ID=10856144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00303652A Withdrawn EP1064906A3 (en) | 1999-06-29 | 2000-04-28 | Attachment device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1064906A3 (en) |
AU (1) | AU4259800A (en) |
CA (1) | CA2312552A1 (en) |
GB (1) | GB2352471B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1440676A1 (en) * | 2003-01-24 | 2004-07-28 | Idiss Beheer B.V | Hoist device |
GB2402920A (en) * | 2003-06-21 | 2004-12-22 | Arjo Med Aktiebolag Ltd | Sling attachment device |
EP2450021A3 (en) * | 2010-11-08 | 2012-06-13 | Care and Independence Systems Ltd | Clip mechanism |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2419152A (en) | 2004-10-14 | 2006-04-19 | Sunrise Medical Ltd | Attachment device which attaches lifting sling to hoist |
GB0722089D0 (en) * | 2007-11-12 | 2007-12-19 | Griffiths Ralph | Improved safety devices |
GB2513369B (en) * | 2013-04-25 | 2015-08-19 | Ansermed Ltd D | A clip |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4271999A (en) * | 1979-08-24 | 1981-06-09 | Ambico Inc. | Guitar strap connector |
DK162371C (en) * | 1985-12-21 | 1992-03-23 | Impro Ltd | DISCOVERY OF THE DISABLED |
US5380034A (en) * | 1992-09-11 | 1995-01-10 | Love Lift, L.P. | Wheelchair with convertible seat-stretcher |
GB2293857A (en) * | 1994-10-05 | 1996-04-10 | Arjo Ltd | Attachment device |
GB9512905D0 (en) * | 1995-06-24 | 1995-08-30 | Arjo Ltd | An invalid hoist sling attachment device |
-
1999
- 1999-06-29 GB GB9915011A patent/GB2352471B/en not_active Expired - Fee Related
-
2000
- 2000-04-28 EP EP00303652A patent/EP1064906A3/en not_active Withdrawn
- 2000-06-22 AU AU42598/00A patent/AU4259800A/en not_active Abandoned
- 2000-06-27 CA CA 2312552 patent/CA2312552A1/en not_active Abandoned
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1440676A1 (en) * | 2003-01-24 | 2004-07-28 | Idiss Beheer B.V | Hoist device |
NL1022487C2 (en) * | 2003-01-24 | 2004-09-22 | Idiss Beheer B V | Lifting device. |
US7020913B2 (en) | 2003-01-24 | 2006-04-04 | Exodus Holding B.V. | Hoist device |
GB2402920A (en) * | 2003-06-21 | 2004-12-22 | Arjo Med Aktiebolag Ltd | Sling attachment device |
EP2450021A3 (en) * | 2010-11-08 | 2012-06-13 | Care and Independence Systems Ltd | Clip mechanism |
Also Published As
Publication number | Publication date |
---|---|
EP1064906A3 (en) | 2001-11-28 |
GB9915011D0 (en) | 1999-08-25 |
GB2352471B (en) | 2003-01-08 |
AU4259800A (en) | 2001-01-04 |
CA2312552A1 (en) | 2000-12-29 |
GB2352471A (en) | 2001-01-31 |
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Legal Events
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