US1979027A - Carrying devices - Google Patents

Description

Oct. 30, 1 A. o. ENGBERG ET AL CARRYING DEVICE Original Filed June 15, 1926 3 Sheets-Sheet l 1934- I A. o. ENGBERG ET AL 1,979,027

CARRYING DEVICE Original Filed June- 15. 1926 3 Sheets-Sheet 2 M w w x I Oct. 30, 1934. A, Q ENGBERG E AL 1,979,027-

CARRYING DEVICE Original Filed June 15, 1926 3 Sheets-Sheet 3 Patented Oct. 30, 1934 1,979,027 CARRYING DEVICES Axel 010i Engberg and holm, Sweden, assignors,

Fredrik Carlstedt, Stockby mesne assignments,

to Electrolux Corporation, a. corporation oi Delaware Original application June 15, 1926, Serial No.

116,123. Divided and this application Decembe! 22, 1926, Serial 156,465. Renewed July 8, 1933. lln Sweden December 16, 1925 This application is a division of our copending application Ser. No. 116,123 filed June 15, 1926 from which has matured Patent No. 1,757,239, granted May 6, 1930.

Our invention relates to the art of carrying devices and more particularly to the carrying of certain articles such as vacuum cleaner units comprising separable parts.

The principal object of the invention is to prom vide, a detachable carrying device which is con- .venient in use, neat in appearance, durable, readily manufactured and which fits snugly to the body to be carried when not in use.

Further objects and the nature of our invention be apparent as the description proceeds. The description is of one preferred form but it is to be understood that it is not intended that the invention be limited to the form described.

Referring tothe accompanying drawings which 20 illustrate the preferred form of our carrying device: Fig. 1 is aside view of the main unit of a suction cleaner; Fig. 2 is a longitudinal section of the so-called main unit; Fig. 3 is a. section on line 33 of Fig. l, with internal parts of the unit omitted; Fig. 4 is partly a plan view and partly a sectional view of a carrying device embodying the invention for carrying the main unit; Fig. 5 is a section on line 5-5, Fig. 4; Fig. 6 shows a pin normally arranged at one end of the carrying device; Fig. '7 shows a. spring member also forming part of the carrying arrangement; and Fig. 8 shows the cleaner in operation.

The main unit of the cleaner, shown in side view in Fig. 1 and section in Fig. 2, comprises a casing, in turn comprising a main cylindrical barrel 10 consisting of stiff material or leather composition having attached thereto at one end a metal bell 11, and, at the other end, a metal housing 12. Bell 11 is removably secured to barrel 10 bymeans of suitable spring clamps 29 secured to the barrel and engaging a shoulder 35 on the bell. Housing 12 contains the electric motor 13 and the'fan 14. Forward of housing 12, thatis, in direction "toward bell 11, isa disinfecting air fllter 15 and forward of the filter 15 is the dust bag 16. The forward end of the dust bag consists of a flanged metal ring 17, around the flange of which is placed a rubber washer 18. The flange of ring 17 and the rubber washer 18 are clamped between bell 11 and the flange 19 of a circular ring 20 attached to the forward end of the main barrel by means of rivets 21 and forming part of the main barrel.

- A central coupling 23 is screw-threaded into a i central opening 8 in hell 11 by means of threads 24 and has a central tapered passageway 25 into which, in normal operation, the tapered end of a flexible metal air hose 26 is jammed, which air hose leads to the mouthpiece 22 into which the dust passes, an extension 9 (Fig. 8) being used between the mouthpiece and the air hose, if desired. Coupling 23 is readily removable from bell 11 by mere turning of the hand and for this purpose is supplied with a roughened surface in the form of ribs 27 to provide an easy grasp.

In normal operation air containing dust passes in through passageway 25 from tube 26 and mouthpiece 22 and into dust bag 16 where the dust is deposited, and from which the air, after passing through the cloth of the dust bag, passes through the filter l5, thence through'fan l4, and but to the atmosphere through the opening 28 at the rear end of housing 12. Opening 8 may be considered as the air inlet and opening 28 as the air outlet for the unit.

In order that the motor-fan unit may be readily detached from the barrel it is secured to the barrel by means of screws 41 which are accessible and removable from outside the main cleaner unit as a whole. A ring 42 is fastened to the rear end of the main barrel by means of rivets 43. The motor-fan housing 12 is machined to fit within ring 42 and the barrel. The screws 41 pass through ring 42, through the barrel, and thread into the motor-fan housing. By merely removing screws 41 and detaching the strap 65 by a simple manipulation, which will be presently described, the unitary housing 12 may be detached from themain barrel, thereby separating those parts which may be termed active from those parts which may be termed inactive, without interference with electric connections nor mountings nor mouthpiece connections, and without any mechanical dismantling, nor necessitating the services of a mechanic.

Housing 12 is made of two parts 12a and 12b which may be secured in any desired manner,

but preferably so that they may be readily separated.

The main barrel 10 and associated parts are mounted upon runners 60, of which there are two, one positioned on either side of the main barrel, and which form a sled carriage for the main unit. The runners are fastened at each end of the main barrel to clamps 61.

In order to carry the main cleaner unit comprising the main barrel 10 and attached parts a strap 65 is provided. This strap consists of a central flat steel spring 66 which is surrounded y 10 h or leather or other suitable material 67 2 (see Figs. 4 and .5). The strap at one end surrounds a pivot pin 68 which is mounted in astandard or strap-holding member '70. Standard '70 is attached to the housing 12. Between the strap 65 and pin.68 there is a metal member '71- (Fig. '7) of yieldable nature. Pin 68 has a central portion 72 over which metal member '71 fits and two end portions '73 of greater diameter than the central .portion '72 and of greater diameter than the unsprung natural internal diameter of metal member '71. Portions '73 fit into openings 74 in standard '70. Pin 68 is provided with bevupon elled portions '75 which normally are adjacent the ends of metal member '71. Pin 68 in normal position, extends somewhat outside the part of standard "70 in which it is situated. The purpose of the arrangement just now described is to al= low, by very simple means, a quick release of strap 65 from standard '70 so that the motor-fan housing 12 to which standard '70 is attached can be readily removed from the main barrel 10 to which the other end of strap 65 is secured. By pressing either end of pin 68. bevels '75 cause member '71 to spring outwardly and the end portions '73 slip inside member '71. Upon movement of pin 68 within standard '70 the strap can be twisted and removed from standard '70. For this purpose the holes in which parts '73 normally rest are made large enough to afiord clearance for the passage of that portion '73 which has been moved outwardly from standard '70, through the hole, in oblique position.

The forward end of strap 65 encircles pivot pin '76. This pin is adapted to move longitudinally of the main barrel 10 by having its ends resting in-slots '77 in the sides of a forward standard '78 attached to barrel 10. The forward standard, as clearly appears from the drawings, is hollow and has a base flange conforming to the contour of the outer surface of barrel 10, a pair of parallel vertical side walls, a front wall joined to the base flange and a substantially hori- 'zontal upper flange 'having parallel portions joined to the side walls. As clearly appears from Fig. 4 the width of the strap 65 is less than the distance between the parallel portions of the upper flange on the standard. The spring characteristic of member 66 tends always to hold strap 65 down against or near to the main barrel with pin '76 in its forward position. In order to carry the cleaner unit, strap 65 is lifted wherethe ends of the strap pivot in the standards and pin '76 slides to its rearmost position, that is, to the right-hand end of slot '77 as shown in Fig. 1, and the strap then has a convenient bowed position to form a handle. The strap is arranged so that its center is substantially above the center of gravity of the cleaner unit comprising barrel 10 and connected parts, whereby the cleaner unit may be carried in horizontal position.

Obviously different arrangements of parts may be used and parts may be modified without departing from the sphere or scope of the invention. The invention is not to be limited to the detailed description of the specification which has been drawn with a view of setting out one example completely to enable those skilled in the art to readily make and use the invention, but is to be limited merely by the state of the prior art and the scope of the appended claims.

Having thus described our invention, what we claim is:-

1. In a strap arrangement, a strap, a pin having enlarged outer portions and a reduced central portion and having bevelled portions bethe upper edges of navaoav tween the central portion and the outer portions, a spring member surrounding the central portion, said strap surrounding said spring member, either end portion of the pin being adapted to be pushed within the spring member, the bevelled portions serving to expand the spring.

2. A'handle comprising a strap, a first standard having slots therein, a pinmounted in said standard and movable in said slots, said strap I having one end surrounding said pin, a steel spring forming part of said strap, a second standard, a second pin loosely mounted in said second standard, said strap having its other end surrounding said second pin and means whereby said second pin can be moved relative to the strap in order to release said strap from the second standard comprising means for yieldingly holding the strap to said second pin.

' 3. A handle comprising a first standard, a strap having one end mounted in said first standard, a second standard having opposed openings, 9. pin mounted in said second standard having enlarged end portions normally extending through the openings and a resilient member normally surrounding the central portion of the pin, said pin having bevelled portions between the outer enlarged portions and the central portion of the pin, the other end of said strap surroundin said pin and said resilient member. e

4. A handle comprising a strap, a first standard having slots therein, a pin mounted in said standard and movable in said slots, said strap having one end folded around said pin, a steel spring for ng Dart of said strap, a second standard having openings therein, a second pin mounted in said second standard in said openings, said strap having its other end folded around said second pin, said second pin having a central reduced portion and being bevelled between the outer portions and the central reduced portion, and a spring member between said second pin and the fold.

5. A device of the character set forth for attachment to the outside surface of a body t6 be carried comprising, in combination, a standard 120 adapted to be attached to said surface, said standard comprising a hollow member having a base flange conforming to the contour of said surface, a pair of parallel side walls joined at substantially right angles to said base flange, a 12! front wall joined to said base flange and to both said side walls, and a substantially horizontal upper flange having parallel portions joined to said side walls and extending inwardly therefrom, a hand-grasp member com- 134 prising a normally straight bendable resilient member covered with pliable material, the width of said hand-grasp member being less than the distance between the parallel portions of said upper flange on said standard, said pliable ma- 13 terial formed in a loop at one end, a pin extending horizontally throughsaid loop, said pin extending under the upper flange of said standard and being held by said standard slidably parallel to said surface, said bendable member being con- 14 nected to said pin only through said pliable material whereby tension is carried solely through said pliable material, and means for securing the other end of said hand-grasp member to said surface.

6. A device of the character set forth for attachment to the outside surface of a body to be carried comprising a standard adapted to be attached to said surface, said standard comprising a hollow member having a bottom conformmg' 14 between the parallel portions means for securing the other grasp member to said surface.

7. A device of-the character set forth for attachment to the outside surface of a body to be carried face, a hand-grasp member comprising a normally straight bendable resilient member covered with pliable material, the width of said hand-grasp member being less than the distance of said upper flange on said standard, said pliable material formed in a loop at one end, a pin extending through said loop, said pin extending under the upper flange of said standard and being held by said standard slidably parallel to said surface, said bendable member being connected to said pin only through said pliable material whereby tension is carried member to said surface.

8. A device of the character set forth for attachment to the outside surface of a body to be carried comprising a standard adapted to be attached to said surface, said standard comprising a hollow member having a bottom conforming to the contour of said surface, and having a pair of side walls, a front wall joined to said side walls, and an upper flange having parallel portions joined to the side walls and extending inwardly therefrom and substantially parallel to said surface, a hand-grasp member comprising a normally straight bendable resilient member covered with pliable material, the width of said handgrasp member being less than the distance between the parallel portions of said upper flange on said standard, said pliable material formed in a loop at one end, a pin extending through said loop, said pin extending under the upper flange of said standard and being held by said standard slidably parallel to said surface, and means for releasably securing the other end of said handgrasp memberto said surface.

AXEL OLOF' ENGBERG. FREDRIK CARLSTEDT.

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