GB2500700A - A pivot arrangement for a mast wherein a pin and groove lock push the mast against a limit bar - Google Patents

A pivot arrangement for a mast wherein a pin and groove lock push the mast against a limit bar Download PDF

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Publication number
GB2500700A
GB2500700A GB201205713A GB201205713A GB2500700A GB 2500700 A GB2500700 A GB 2500700A GB 201205713 A GB201205713 A GB 201205713A GB 201205713 A GB201205713 A GB 201205713A GB 2500700 A GB2500700 A GB 2500700A
Authority
GB
United Kingdom
Prior art keywords
mast
base plate
locking pin
limit bar
rotatable
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.)
Granted
Application number
GB201205713A
Other versions
GB2500700B (en
GB201205713D0 (en
Inventor
I Ponting
G Dale
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.)
Proto Magic Innovations Ltd
Original Assignee
Proto Magic Innovations Ltd
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 Proto Magic Innovations Ltd filed Critical Proto Magic Innovations Ltd
Priority to GB201205713A priority Critical patent/GB2500700B/en
Publication of GB201205713D0 publication Critical patent/GB201205713D0/en
Publication of GB2500700A publication Critical patent/GB2500700A/en
Application granted granted Critical
Publication of GB2500700B publication Critical patent/GB2500700B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A61G7/1038—Manual lifting aids, e.g. frames or racks
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/18—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
    • E04H12/187—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic with hinged sections
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2284—Means for adjusting the orientation of the post or pole
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • 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
    • A61G2200/00—Information related to the kind of patient or his position
    • A61G2200/30—Specific positions of the patient
    • A61G2200/34—Specific positions of the patient sitting
    • 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
    • A61G2200/00—Information related to the kind of patient or his position
    • A61G2200/30—Specific positions of the patient
    • A61G2200/36—Specific positions of the patient standing
    • 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
    • A61G7/104—Devices carried or supported by
    • A61G7/1046—Mobile bases, e.g. having wheels
    • 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
    • A61G7/1082—Rests specially adapted for
    • A61G7/1096—Knee, upper or lower leg

Abstract

A clamping means for a rotatable mast comprising a mast 2 that is rotatable about a pivot shaft 15 and is arranged to be clamped in at least two positions, one of which being an upright position wherein the clamp retains the mast 2 so that it cannot rock wherein this condition is achieved by a locking pin 11 which is spring loaded towards a downward position and can engage with a groove 23 on a side plate 18 mounted on a base plate 9 wherein the engagement of the locking pin 11 with the groove 23 pushes the mast 2 towards a limit bar 12 that is attached to the side plate 23 and wherein a mast release sleeve 10 is provide on the mast 2 to sit between the mast 2 and limit 12 bar in a compressed state when in the locked position. The device may be employed on an aid to help people stand up and allow it to collapse for storage.

Description

A CLAMPING MEANS FOR A ROTATABLE MAST
The use of devices to assist in standing and to rotate persons with limited body movements is well known. Such devices are commonly known by names such as stand aid'. In particular the device can take the form of a rotatable base with a vertical mast, a knee pad and a handle. Such a device is shown in Fig 1.
When the stand aid is fully assembled and ready for use it is relatively bulky and difficult to store. For this reason some models are provided with a means to lower the mast, thus making the product less bulky. Fig 2 shows a stand aid with the mast lowered down. In order that the carer and the patient can feel secure in using the device it is important that the mast is secure and free from any rocking motion relative to the base. For ease of operation it is desirable that the mechanism for keeping the mast in the upright, and ready for use position, is of a quick release and quick lock type. This invention relates to a quick release and quick lock mechanism that keeps the mast firmly in the upright and ready to use position and does not allow the mast to move or rock with respect to the base.
In order that the invention may be better understood reference will now be made to the attached drawings. Where: -Fig 1 shows a three dimensional view of a stand aid device with the mast in the upright and ready to use position.
Fig 2 shows a three dimensional view of a stand aid device with the mast in the folded down and ready to store position.
Fig 3 shows a similar three dimensional view of the device shown generally in the same position as shown in Fig I and with the base cover (6) removed.
Fig 4 shows a similar three dimensional view of the device shown generally in Page I the same position as shown in Fig 2 and with the base cover (6) removed.
Fig 5 shows a section through the centre of the device with the device generally positioned as shown in Fig 3.
Fig 6 shows a section through the centre of the device with the device generally positioned as shown in Fig 4.
The invention comprises an operating handle which is used to wheel the device to the required position and to rotate it as required. A mast (2) has a knee pad (3) attached and the knee pad is used to restrain the patients knees.
The mast (2) is attached to a base plate (9) onto which are attached central wheels (4) and (29) plus rear wheels (5) and (30). These wheels are used to move the device to the required location. The base plate (9) has a cover (6) and attached to the cover (6) on footpads (7) (8). The footpads are used to position the patients feet during use. The operating handle (I) is attached to a mast (2). The mast (2) is pivoted via the mast pivot shaft (15). The mast pivot shaft (15) is retained in position by two shaft retention pins (16). Note only on shaft retention pin (16) is shown. The mast pivot shaft runs in bearings (17), only one of which is shown. The mast pivot shaft is retained by two side plates (18) (19) which are bolted to a base plate (9) via several bolts (20). The side plates (18) (19) are made rigid at their upper edge by U plates (21) (22). A mast locking pin (11) is retained in the horizontal position by two slots in its sides engaging with the side walls of a mast release sleeve (10) and is kept in a position nearest to the base plate (9) by a spring (27) that is looped around the mast locking pin (11) and is retained at the bottom of the mast (2) in position (28). The mast locking pin (11) can engage in cut out (23) or cut out (24) in the side plates (18) (19). Note the left side plate (19) has similar features to the Page 2 right hand side plate (18). When the mast (2) is in the upright position and the mast locking pin (11) is engaged in the cut out (23) it is arranged that the locking pin (11) engages with a surface (25) on the side plates (18) (19) forcing the mast (2) and the mast release sleeve (10) towards a mast limit bar (12) and engaging the mast limit bar (12) with the mast release sleeve (10) at an engaging point (26). The mast limit bar (12) is retained by retention pins (13) (14).
The locking action of the mast locking pin (11) on side plates (18) (19) at (25) and the engagement of the mast release sleeve with the mast limit bar at (26) ensure that the mast (2) is kept locked towards the upright position and cannot rattle or move in the direction that the mast pivots. Movement of the mast in the plane at 90 degrees to the one in which it is locked is restrained by the pivot shaft (15) and bearings (17).
The mast release sleeve (10) is pulled in an upwards direction to move the mast locking pin out of engagement with cut outs (23) or (24). When the mast release sleeve is released it will be pulled down towards the base (9) by the spring (27) and when the mast is rotated the mast locking pin will engage in slot (23) or (24).
In another embodiment of the invention the construction of the locking members can be varied in terms of mechanical construction and materials used.
Accordingly the present invention comprises a clamping means for a rotatable mast comprising a mast (2) that is rotatable about a pivot shaft (15) and is arranged to be clamped in at least one position, and that position being the position where the mast (2) is upright and the equipment is ready to use, Page 3 and the clamping means utilised to retain the mast (2) in the upright position being such that the mast (2) is locked to a base plate (9) in such a way that there is no back lash or rocking possible between the mast (2) and the base plate (9), such condition being ensured by a locking pin (11) that is spring loaded towards a downward position engaging on one side of a cut out (23) on side plates (18) (19) that are attached to the base plate (9) and said locking pin (11) pushing the mast (2) towards a mast limit bar (12) that is also attached to the side plates (18) (19), a mast release sleeve (10) being between the mast (2) and the limit bar (12) and being in compression at the surface of contact.
Page 4

Claims (2)

  1. CLAIMS1. A clamping means for a rotatable mast comprising a mast (2) that is rotatable about a pivot shaft (15) and is arranged to be clamped in at least two positions, one of which position being the position where the mast (2) is upright and the equipment is ready to use, and the clamping means utilised to retain the mast (2) in the upright position being such that the mast (2) is locked to a base plate (9) in such a way that there is no back lash or rocking possible between the mast (2) and the base plate (9), such condition being ensured by a locking pin (11) that is spring loaded towards a downward position engaging on one side of a cut out (23) on side plates (18) (19) that are attached to the base plate (9) and said locking pin (11) pushing the mast (2) towards a mast limit bar (12) that is also attached to the side plate (18) (19) a mast release sleeve (10) being between the mast (2) and the limit bar (12) and being in compression at the surface of contact.
  2. 2. A clamping means as described in clam 1 with the same functionality but of different construction.Page 5 Amendments to the claims have been filed as followsCLAIMS1. A clamping means for a rotatable mast comprising a mast (2) that is rotatable about a pivot shaft (15) and is arranged to be clamped in at least two positions, one of which position being the position where the mast (2) is upright and the equipment is ready to use, and the clamping means utilised to retain the mast (2) in the upright position being such that the mast (2) is locked to a base plate (9) in such a way that there is no back lash or rocking possible between the mast (2) and the base plate (9), such condition being ensured by a locking pin (11) that is spring loaded towards a downward position engaging on one side of a cut out (23) on side plates (t8) (19) that are attached to the base plate (9) and said locking pin (11) pushing the mast (2) towards a mast limit bar (12) that is also attached to the side plate (18) (19) a mast release sleeve (10) being between the mast (2) and the limit bar (12) and being in compression at the surface of contact. * * * * * * * * * * ** * * * 0** * *** * * * 0 **4**.. * *
GB201205713A 2012-03-30 2012-03-30 A clamping means for a rotatable mast Active GB2500700B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201205713A GB2500700B (en) 2012-03-30 2012-03-30 A clamping means for a rotatable mast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201205713A GB2500700B (en) 2012-03-30 2012-03-30 A clamping means for a rotatable mast

Publications (3)

Publication Number Publication Date
GB201205713D0 GB201205713D0 (en) 2012-05-16
GB2500700A true GB2500700A (en) 2013-10-02
GB2500700B GB2500700B (en) 2014-05-07

Family

ID=46160053

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201205713A Active GB2500700B (en) 2012-03-30 2012-03-30 A clamping means for a rotatable mast

Country Status (1)

Country Link
GB (1) GB2500700B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT518205A1 (en) * 2016-02-08 2017-08-15 Design & Eng Company Produktions- Und Vertriebs Gmbh Folding scooter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396928A (en) * 1966-07-15 1968-08-13 Hamilton Cosco Inc Leg mounting
US5662131A (en) * 1996-12-05 1997-09-02 Scarborough; Walter M. Portable folding grab bar
US6206387B1 (en) * 1998-12-30 2001-03-27 Shui-Te Tsai Collapsible skateboard
US20070096532A1 (en) * 2005-10-28 2007-05-03 Myers Edward P Device to aid persons rising from a seated position
US20070095257A1 (en) * 2005-10-31 2007-05-03 Hernandez Hector R Folding table assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396928A (en) * 1966-07-15 1968-08-13 Hamilton Cosco Inc Leg mounting
US5662131A (en) * 1996-12-05 1997-09-02 Scarborough; Walter M. Portable folding grab bar
US6206387B1 (en) * 1998-12-30 2001-03-27 Shui-Te Tsai Collapsible skateboard
US20070096532A1 (en) * 2005-10-28 2007-05-03 Myers Edward P Device to aid persons rising from a seated position
US20070095257A1 (en) * 2005-10-31 2007-05-03 Hernandez Hector R Folding table assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT518205A1 (en) * 2016-02-08 2017-08-15 Design & Eng Company Produktions- Und Vertriebs Gmbh Folding scooter

Also Published As

Publication number Publication date
GB2500700B (en) 2014-05-07
GB201205713D0 (en) 2012-05-16

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