CA1087356A - Adjustable handle and guide shaft for floor maintenance appliances - Google Patents

Adjustable handle and guide shaft for floor maintenance appliances

Info

Publication number
CA1087356A
CA1087356A CA284,828A CA284828A CA1087356A CA 1087356 A CA1087356 A CA 1087356A CA 284828 A CA284828 A CA 284828A CA 1087356 A CA1087356 A CA 1087356A
Authority
CA
Canada
Prior art keywords
cap
handle
guide shaft
tube portion
actuating
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
Application number
CA284,828A
Other languages
French (fr)
Inventor
Bernd Fink
Heinz Kaulig
Gerhard Orth
Klaus Herbener
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.)
Vorwerk and Co Interholding GmbH
Original Assignee
Vorwerk and Co Interholding GmbH
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 Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH
Application granted granted Critical
Publication of CA1087356A publication Critical patent/CA1087356A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10Telescoping systems
    • F16B7/105Telescoping systems locking in discrete positions, e.g. in extreme extended position
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/32Handles
    • A47L9/322Handles for hand-supported suction cleaners
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25GHANDLES FOR HAND IMPLEMENTS
    • B25G1/00Handle constructions
    • B25G1/04Handle constructions telescopic; extensible; sectional

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Golf Clubs (AREA)
  • Massaging Devices (AREA)
  • Sawing (AREA)
  • Surgical Instruments (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

ABSTRACT OF THE DISCLOSURE

A handle and guide shaft for a floor maintenance appliances comprises two telescoping tube portions, two cap members, one in the inner tube and one around the outer tube, the two caps extending beyond the respective ends of the tube portions and an actuating member in the cap in the inner tube and plungers extending in openings in said inner cap and said inner tube portion which are movable on said inner cap through said openings to lock and unlock the tube portions in response to the movement of the actuating member.

Description

` 1~8'73~

' The inyention re~ates to a, handle and ~ui:de shaft for floor ma~ntenance appli.ance~., It is known to form these handle $h.afts from two or more telescoping tube portions, The tube portions are then secured against each oth.er ei:th.er by conical end pieces which tighten upon each other or ~y means of spring loaded knobs wh~ch are adapted to enter an opening in the tube portions.
This kind of structure is., h.o~ever, useful only if - , the tube portion~ have about the same diameter or ~f only certain end pieces of the tube portions have a lower diameter.
This is a substantial disadvantage since tube portions with the same diameter cannot be telescoped into each other or, if they have a different diameter, it is difficult to secure them to each other.
It is also known to secure the different tube portions by means of slotted end pieces and coupling nuts with slanting : fastening surfaces. The tube portions are secured by means of the coupling nut and thus attached to each other.
In these cases it is a defInite shortcoming that the ' 20 coupling nut has to be tightened with a substantial amount of force ~, since, when the appliance is used there occur automatically forces in the longitudinal direction of the guide shaft wh.ich push the tube ;~
portions into each other if the attachment is not sufficiently secure.
` The power necess~ary to tighten the coupling nut i5 normally of a di-~ 25 mension which cannot be expected to be exerted by a housewife who, ; after all, is the normal user of these appliances.
~`~ It is, therefore, an o~ject of the present invention ' to provide a handle and guide shaft for floor maintenance appliances ' which can be telescoped without a great amount of power and permits ., 30 the securing of the different parts- and a desired sliding of the , . .. .

, . -2- . ~
~`
.
' ~ `

1~8~3~

1 tube pQrtions ~nto eac~. other as re.qui~xed~
This object is s.olved ~n th.e invention by a shaft comprising at least two telescoping tu~e port~ons, a first cap abutting the inner wall of the inner t~e portion and extending forwardly beyond its end, a second cap abutting the outer wall of ; the outer tube portion and extending rearwardly beyond its end; an actuating mem~er disposed in said first cap; openings provided in said first cap and said inner tube portion, and plunger means supported ~y said inner cap and mova~ly extending through said lQ openings to lock and unlock the tube port;ons in response to move-ment of the actuating member.
The invention has the important advantage that a longitudinal shifting of the tube portions is possible with the hand holding th.e shaft and can be effected in a simple manner by use of a release knob.
It is furthermore a substantial advantage of the inven-tion that an unintentional pulling apart or pushing together of the individual tube portion is impossible s;nce the tube portions are firmly secured in latches or projections cooperating with ..
2a corresponding notches.
: FIG. 1 generally shows a vacuum cleaner with a teles-copically movable guide shaft as it is used in the invention; .-.
FIG. 2 shows in a partial longitudinal section a piece of the guide sh.aft which illustrates the actuating member with the slanting abutment surfaces and the spring loaded plungers, the dev-ice being in the locked condition;
FIG. 3 is a similar vieW as that of FIG. 2 but in un- ..
locked condition;
- .
FIG~ 4 is a longitudinal view through a part of the .~ 30 guide shaft in locked condition illustrating an actuating member ' .

... . ..

873~6 1 which is provided with guide notches and cooperating plungers which have keys moving in the guide notches:
FIG. 5 is a partial vie~ of a guide shaft in section similar to the view of FIG. 4, however in this case in the unlocked condition;
FIG. 6 shows the end pieces of the two telescoping tube portions with the release knob for the shifting movement of the two portions; and FIG. 7 illustrates in a partial section the interlock-ing arrangement of the two tubular portions.
In a preferred em~odiment of the invention the actuat-ing member is provided with an operating rod which can be operated by pressing a release knob. To improve the action of the plungers the actuating member is provided at both sides with slanting surfa-ces for abutment by the plungers.
In a separate embodiment it is provided that the plun-gers may be held in place by springs.
Another embodiment resides in the feature that the ac-tuating mem~er is provided with guide notches in which keys provided
2~ on the plungers move. In order to move the plungers into the cor, responding opening a spring is provided between the bottom piece of the inner cap and a stop on the actuating rod.
To further improve the movement of the tube portions within each other the actuating member may also have slanting sur-. . .
faces at the end remote from the actuating rod which may cooperate - with shoulders on the inner cap, There may also be provided a U-shaped locking member behind the cap which, by means of a latch, provides the locking, the latch entering an opening through the in-ner tube portion and ending i`n a recess of the outer tube portion.
3- The lock member in this case can be easily operated by the user by
-4-". " .

1~8~3~i~

means of a knob extending from outwa~ds of the oute~ tu~b~pg t~ough the inner tubing and being copnected with the locking mem~e~.
With specific reference now to the embodiment of FIG. 1 it will be seen that a vacuum cleaner 31 is provided w~th the guide and handle shaft 32 and that the telescopic shift~ng of the tubular portions of the shaft can be effected by a release knob 15 which will be further described below. The inner position of the guide shaft is shown in broken lines. This illustrates that the guide shaft can ~;

```:
be adjusted in any manner required by the work.
:
The following Figures 2 to 7 illustrate the mechanical features of the telescopic portions of the guide shaft.
' With reference to FIGS. 2 and 7 ;t will be seen that the inner tube portion 1 is movable in the outer tube portion 2. The `
device is provided with two caps 3 and 4 of which one rests on the inner wall 5 of the inner tube portion while the other rests on the ~-outer wall 7 of the outer tube portion. Both caps extend beyond the ends of the respective tube portions 6 and 8.
The details of the functtoning of the telescoping shift in a preferred embodiment will be illustrated below when describing FIG. 6. At this place it is noted that in FIG. 2 the cap 3 is pro-vided with an actuatlng member ~ which has slanting sides 16 aga~nst which the plungers 10 and ll rest under the action of springs 17.
The plungers extend through openings 12 and 12' in the cap 3 and openings 13 and 13' in the inner tube portion and come to a stop in the outer tube portion 2.
The device operates as follows. ~hen the actuating member 9 moves by means of the actuating rod 14 in the Y-direction as furhter shown in F~G. 3, the plungers 10 and ll move along the slanting surfaces 16 and are forced inwardly by the spr;ngs 17.

They then release the tubular portions l and 2 from each other. The .

~L0873~6 r 1 tube portion 1 thereupon can be moved both in the X- and in the Y-direction.
The spring 22 which is provided on the actuating rod 14 is compressed when movement ~n the Y-direction is effected. It then pushes the actuat~ng member 9 in the X-direction so that its slanting sides 16 abut against the plungers 10 and 11 ~hich now are pressed against the outer tube portion 2 and after moving through the open-ing 34 are pushed into this tube portion and thus secured in posi-tion. In this manner various lengths of the guide shaft can be ob-tained.
F~G$. 4 and 5 show a slightly d;fferent embodiment in which the actuating member 9 is provided with guide notches lB. A
cap 3 is again provided in the inner tube portion 1 and a cap 4 in the outer tube portion 2. The actuating member 9 is again provided with an actuating rod 14 in the same manner as in the embodiment of FIGS. 2 and 3. However, the plungers 10 and 11 engage the actuating member 9 by cams 19 which move in the guide notches 18. Upon moving the actuating rod i4 into the position as illustrated in FIG. 3 the device of FIG, 5 operates as follows;
If the rod 14 is moved against the action of the spring 22 the notches 18 are caused to move along the plungers 10 and 11 so that the cams 19 are moved closer to each other and the plungers move inwardly. This causes the plungers to be freed of the openings 34 and thus the tube portions 1 and 2 are released for movement. Since the spring 22 in the same manner as in FIG, 2 acts to force the ac-tuating member deeper into the cap 3 the notches 18 and the cams 19 also move and cause the plungers 10 and 11 to be pushed outwards when they are fixed aga~n in their posit~on as soon as they become align-ed with the openings 34.
In this embodiment there is also pro~ided rearwardly of .. ,. , :

1~373~6 1 the cap 3 a U-shaped lockin~ member 26 ~hich ~ th~e ~os~tion whe~e the tubular port~ons 1 and 2 are furthest p~lled apart will enter with its latch 27 through opening 28 in the inner tube portion 1 and further into the rçcesses 2~ provided ~n the outer tube portion.
Thus, a complete pulling apart of the tw~ tube portions cannot take place.
In order to ~ntentionally separate the two tube portions~
completely, it is, however, possible to depress the knob 30 whereby the tube port~ons are released aga~nst each other.
FIG. 6 shows in section the handle 33 where there is provided a release knob 15 which extends into a sleeve 36 of the ac~
tuating rod 14. The knob 15 is arranged slidingly in the outer tube portion and in the handle so that it serves to move the actuating rod back and forth.
FIG. 7 in an enlarged section shows again the function of the caps and the interlocking arrangement of the two tube portions.
The cap 4, which is provided on the outer face 7 of the outer tube portion 2, has a bent-back front portion which envelopes the end por-tion of the outer tube, and with its bent-back flange abuts the in-ner tube 1.
The cap 3 (not shown in this Figurel also extends inthe space between the two tube portions and thus improves the guide action. Since the bent-back ends of the two caps, such as end por- - .
tion 35 of cap 4 are elastic and have a tendency to exert an outward pressure, but on the Qther hand may also be pressed together, there is compensation for any deviations in the two tube diameters.
Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention.

What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims.

~ 7 ~

Claims (8)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. An adjustable handle and guide shaft for floor main-tenance appliances, comprising at least two telescoping tube portions; a first cap abutting the inner wall of the inner of said tube portions and extending forwardly beyond the end thereof, a second cap abutting the outer wall of the outer of said tube por-tions and extending rearwardly beyond the end of the same; an ac-tuating member disposed in said first cap; openings provided in said first cap and said inner tube portion, and plunger means supported by said inner cap and movably extending through said openings to lock and unlock the tube portions in response to move-ment of the actuating member; and guide notches in said actuating member and keys on said plunger means for movement in said guide notches.
2. The handle and guide shaft of claim 1, wherein the plunger means are spring supported on said first cap.
3. The handle and guide shaft of claim 1, which in-cludes an actuating rod for said actuating member and operating means slidingly supported by the outer tube portion and being connected with said actuating rod for lengthwise movement thereof.
4. The handle and guide shaft of claim 1, which in-cludes cooperating slanting abutment surfaces on said actuating member and said plunger means.
5. The handle and guide shaft of claim 1, which in-cludes a spring and a spring abutment on said actuating rod, the spring acting with its free end on the base of said first cap so as to normally force the actuating rod and actuating member into the locked position.
6. The handle and guide shaft of claim 3, which in-cludes a cooperating abutment and shoulder on said actuating rod and first cap to support their relative movement.
7. The handle and guide shaft of claim 1, which in-cludes a U-shaped lock member disposed in the outer tube portion, an aperture in the inner tube portion, a recess in the outer tube portion and a latch forming part of said lock member adapted to extend through said apertures of the inner tube portion into the recess of the outer tube portion so as to lock the two portions against each other.
8. The handle and guide shaft of claim 7, wherein the lock member is compressible and movable means are provided on the outer tube or handle portion for compressing the lock member and thus at will to release said latch so as to effect said un-locking action.
CA284,828A 1976-08-02 1977-08-15 Adjustable handle and guide shaft for floor maintenance appliances Expired CA1087356A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP2637561.1 1976-08-02
DE19762637561 DE2637561A1 (en) 1976-08-20 1976-08-20 GUIDE HANDLE FOR FLOOR CARE EQUIPMENT

Publications (1)

Publication Number Publication Date
CA1087356A true CA1087356A (en) 1980-10-14

Family

ID=5985946

Family Applications (1)

Application Number Title Priority Date Filing Date
CA284,828A Expired CA1087356A (en) 1976-08-02 1977-08-15 Adjustable handle and guide shaft for floor maintenance appliances

Country Status (15)

Country Link
BE (1) BE857964A (en)
CA (1) CA1087356A (en)
CH (1) CH622421A5 (en)
DE (1) DE2637561A1 (en)
DK (1) DK371377A (en)
ES (1) ES230507Y (en)
FI (1) FI772452A7 (en)
FR (1) FR2361980A1 (en)
GB (1) GB1532723A (en)
GR (1) GR64052B (en)
IE (1) IE45567B1 (en)
IT (1) IT1116676B (en)
NL (1) NL7708813A (en)
NO (1) NO772896L (en)
SE (1) SE7709315L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327610A (en) * 1992-02-27 1994-07-12 Dustbane Products Limited/Les Produits Dustbane Limitee Adjustable, removable, locking handle for floor polishers and the like

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7915432U1 (en) * 1979-05-29 1979-09-06 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal TELESCOPIC GUIDE HANDLE FOR HOUSEHOLD APPLIANCES
DE3046286A1 (en) * 1980-12-09 1982-07-08 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal LATCHING FOR TELESCOPICOUS GUIDES
DE8132785U1 (en) * 1981-11-10 1982-04-15 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal HANDLE FOR THE GUIDE OF A HAND VACUUM CLEANER
DE3225913C2 (en) * 1982-07-10 1986-07-10 Miele & Cie GmbH & Co, 4830 Gütersloh Telescopic pipe coupling for a vacuum cleaner
EP0286203A1 (en) * 1987-04-06 1988-10-12 Black & Decker Inc. Vacuum cleaner
FR2699519B1 (en) * 1992-12-17 1995-03-24 Framatome Sa Device for coupling a movable member with at least one drive member.
DE19630286A1 (en) * 1996-07-26 1998-01-29 Miele & Cie Vacuum cleaner
SE0003117D0 (en) * 2000-09-03 2000-09-03 Fast Industriprodukter Hb Device for mutually fixing telescopically displaced elements
TW573519U (en) 2001-12-31 2004-01-21 Shing-Yuan Shiu Improved structure of insertion connection tube for handle of mop
WO2005089582A2 (en) * 2004-03-18 2005-09-29 Bodypoint Designs, Inc. Pivoting side mount and quick release assembly for a pelvic stabilization device
DK200400741A (en) * 2004-05-10 2005-11-11 Vikan As A locking mechanism for a telescopic handle
KR100876113B1 (en) * 2008-10-08 2008-12-31 오성듀랄루민(주) Connector removal prevention structure of multi-stage stick for button-type mountain climbing
GB2473833A (en) * 2009-09-24 2011-03-30 Evac & Chair Internat Ltd A collapsible wheelchair with means to assist in movement over stairs
SI24210B (en) * 2012-10-26 2017-08-31 Tajfun Planina Proizvodnja Strojev, D.O.O. Self-locking cylindrical assembly
US10717183B1 (en) * 2019-05-17 2020-07-21 Clam Corporation Locking hub and extensible handle assembly
US20220386832A1 (en) * 2021-06-02 2022-12-08 April Hall Cleaning Wand Device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327610A (en) * 1992-02-27 1994-07-12 Dustbane Products Limited/Les Produits Dustbane Limitee Adjustable, removable, locking handle for floor polishers and the like

Also Published As

Publication number Publication date
ES230507U (en) 1978-01-01
GR64052B (en) 1980-01-19
IE45567B1 (en) 1982-09-22
GB1532723A (en) 1978-11-22
CH622421A5 (en) 1981-04-15
FR2361980A1 (en) 1978-03-17
SE7709315L (en) 1978-02-21
BE857964A (en) 1977-12-16
DK371377A (en) 1978-02-21
FR2361980B3 (en) 1980-07-11
ES230507Y (en) 1978-05-01
DE2637561A1 (en) 1978-02-23
NO772896L (en) 1978-02-21
FI772452A7 (en) 1978-02-21
IE45567L (en) 1978-02-20
IT1116676B (en) 1986-02-10
NL7708813A (en) 1978-02-22

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