US1821687A

US1821687A - Window shade roller

Info

Publication number: US1821687A
Application number: US500173A
Authority: US
Inventors: Herman J Baumann
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-12-05
Filing date: 1930-12-05
Publication date: 1931-09-01
Anticipated expiration: 1948-09-01

Description

Sept. 1, 1931.

H. J. BuMANN WINDOW SHADE ROLLER Filed Dec'. 5. 1930 Patented Sept. 1, 1931 PATENT oFFlc HERMAN JJBAUMANM or WEST NEW YORK, NEW JERSEY WINDOW SHADE EoEEEE I A Applicationled December 5, 1930.1 Serial No. 500,173.

This invention relates to new and useful improvements in a shade drawer.

It is general construction to provide a shade drawer with a roller having a round end fixed on one end for engaging in a circular aperture in a wallbracket and a rectangularpeg projecting from the other end connected with an internal spring within the roller and intended to engage a wall bracket having a rectangular opening so that the shade when drawn Y downwards winds the spring for automatically rewind-V ing when so desired. .It is also customary to form the wall bracket which has. the rectangular vopening with a slot so that the rectangular peg may be slipped into and out of the rectangular opening.' n

Itis an object of this invention to so construct the shade roller that the rectangular peg upon the shade roller is depressible Yfor eliminating the slot which communicates with the rectangular opening in the wall bracket so as to'eliminate the possibility of the roller shade jumping out of the bracket when it is suddenly released.

Previous attempts have been made to form a shade roller with va depressible peg for the same purpose as the present invention, but these attempts have not met with commercial success due to various unsatisfactory mechanicalstructures. Y y

It is an object of this invention ,tol produce a shade roller of the class described which is of simple durable construction, dependable in use and eicient in action, andl which can be manufacturedand sold at a reasonable cost.

As a stillfurther object of this invention it is proposed'to provide a cap rigidly attached upon the end of the roller and supporting a cup carrying pawls -engageable in longitudinal grooves formed in a circular portion of said rectangular peg, and to eX- tend said peg through a spring rod seat and to-attach saidpeg upon a springvrodprovided with a coaxial spring attached at one end on the spring Arod and atthe other upon the rody seat whereby the spring tends to press the square peg outwards and allow its manual depression.

A still furtherv object of this invention is to' provide a means forfnormallyholding thepeg against depression and said means to becarriedo-n said seat so that when the shade roller is accidentally released while in the-drawn'position, the shock cannot cause the depressibleV peg to accidentally become ,depressed upon the vibrationwhereuponl the shade would fall from its supporting brackets. v. v Ay still Vfurther object of this invention is to provide a pivoted bel-l crank urged into an operative position by aspring with one of its ends actingv against a portion of said square peg to accomplish the latching in the non-depressible condition. n

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had tothe following description andk accompanying drawings, and to the appended claims in which the various novel features of the invention are kmore particularly setl forth. y

In the accompanying drawings forming a material part of this disclosure n Fig. 1 is an elevationalview of va roller shade constructed according to thi'srinvention and shown engagedin brackets upon aframe shown fragmentary and in section. Fig. 2`isva transversesectional view taken on the line 2-2 of Fig." 1. Y c

Fig. is a transverse sectional view taken on the line 3-.3 of Fig. 1.

Figa/1 is a fragmentary enlarged longitudinal sectional view taken on the line 4,-4 of FigLLj kf i'. Fig..,5 Visa transversesectional viewftaken on 'the line 5-15 yof Fig. 4. e' Y Fig. 6 is afragrnentary longitudinal sectional view taken on the lined-6 of Fig. 4. i Fi v7 visV a view similarV to Fig. 6, but showing the rectangular'peg depressed. l. Fig. 8 is a perspective view of the spring rod seat. f y The shade roller cor'r'lprisesl a `roller 10 with a hollow end 11, va round peg 12 on the solid-end, a cap 13 on the hollow end, a cuplt supported inthe cap 13, pawls 15 on said cup, a rectangular peg 16 projectin from said Cap 13 and having a portion 1% formed with longitudinal slots 18 for receiving said pawls 15, a spring rod seat 19 attached on said cup 14 and formed with an opening 20 through which a portion of said peg 16 passes, a spring rod 21 with one end engaging said seat 19 and attached on the end of said rectangular peg 16, and a spring 22 on said rod 21 and having one end attached on the rod and the other on said seat 19.

The roller 10 is shown of cylindrical form, and preferably should be made ofwood. A cap 23 is shown upon the end of the roller 10 which is provided with the circular peg 12. A wall bracket 24 is shown attached upon a frame 25 and is formed with a circular aperture 26 for receiving the circular peg 12. Another wall bracket 27 is shown also attached upon a different portion of the frame 25 and is formed with a rectangular opening 2S for receiving the rectangular peg 16. 'It should be noticed that the wall bracket 27 has no slots communicating with the rectangular opening 28 so that it is necessary for the peg 16 to be depressible and extendable to engage within the opening.

The cap 13 is of tubular form and has its outer end turned inwards to form a marginal ring 29. The other end 30 of the cap is also turned inwards so as to engage into the material of the roller 10 and permanently attach these parts together. The cup 14 isv formed with ring portion 31 of an external diameter corresponding with the internal diameter of the `cap 13, and these parts are a forced fit so thatthey maintain relative positions. The pawls 15 are two in number and arranged diametrically opposite each other, and are pivotally mounted upon rivets 32. engaged through the cup 14.

The portion 17 of the peg 16 is, of circular form and the lon itudinal slots 18 are arrangedV diametrica ly opposite each other as clearly shownin Fig. 5. The pawls 15 are engageable in these slots so as to automatically hold the shade in the drawn position. The shade may be released as is customary by slightly drawing it downwards so that both pawls are in a disengaged position, and then releasing the shade sokthat centrifugal force holds the pawls spread and disengaged from the slots 18.V g Y The spring'rod seat 19 has a cup portion 33 into which the end of the spring rod 21 engages. The seat `19 also has a pair of diametrically opposite arms 34 extended at right angles against the cup 14 and having tongues 35 engageable through openings in the bottom of the cup` and turned outwards to maintain the engaged positions. rIhe rectangular peg 16 has a reduced end 36 which passes through' thea erture 2O in the seat 19 and which is fixe ly connected with the end of the rod 21.

The spring 22 is of the helical spiral type and is coaXially arranged upon the rod 21. One end of the rod is formed with a transverse slit 37 for receiving the end of the spring so as to hold these parts in relative position, and the other end of the spring is bent around one of the arms 34 of the rod seat 19. This arrangement allows the roller 10 to rotate relative to the stationary peg 16 and cause the spring 22 to become under tension for rewinding the roller upon release.

A means has also been provided for normally holding the peg 16 against being depressed, and said means being carried upon the seat 19. This means comprises a bell crank 38 pivotally mounted intermediately at 39 upon one of the arms 34 of the rod seat 19. One arm of the bell crank is urged against the rod seat 19 by a spring 40 which is attached upon the arm 34. In this posi* tion of the arm of the bell crank, it engages against the inner face of the portion 17 of the rectangular peg to restrain the peg from being depressed. The other end of the bell crank extends up through openings 41 in the roller 10 and in the cap 13 to the exterior of the device, where it terminates in a small handle portion 42. The bell crank 3S may be manually forced to the position shown in Fig. 7, and then the peg 16 may be depressed.

The operation of the device may be traced by assuming it in the condition 'shown in Fig. A1. A conventional shade may be attached upon the roller and used in a customary. manner. Even though the shade is suddenly released and it winds up rapidly, it will not be capable of jumping out from the wall bracket as happens very oftenin present day outfits. In the first place the bracket 27 which accommodates one of the pegs of the shade roller has no lateral open ing to allow disengagement. The only possible manner of disengagement is depression of the pegl 16. Such depression is restrained by the outward urge of the spring 22. Itis also made impossible by the bell crank 38. brackets, the bell crank must first be pivoted and then the peg depressed` While I have shown and described the preferredembodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is 1. A shade roller, comprising a roller with a hollow end, a round peg on the solid end, a cap on the hollow end, a cup supported in the cap, pawls on said cup, a rec- To remove the roller from the tangular peg projecting through said cap and having a portion with longitudinal slots for receiving said pawls, a spring rod seat attached on said cup and formed with an opening through which a portion of said peg passes, a spring rod with one end engaging said seat and attached on the inner end of saidrectangular peg, and a spring on said rod having one end attached on said rod and the other on said seat whereby said peg is maintained resiliently extended by said spring.

2. A shade roller, comprising a roller with a hollow end, a round peg on the solid end, a cap on the hollow end, a cup supported in the cap, pawls on said cup, a rectangular peg projecting through said cap and having a portion with longitudinalv slots for receiving said pawls, a spring rod seat attached on said cup and formed with an opening through which a portion of said peg passes, a spring rod with one end engaging said seat and attached on the inner end of said rectangularY peg, and a spring on said rod having one end attached on said 'rod and the other on said seat, whereby said peg is maintained resiliently extended by said spring, lar peg which is provided with the longitudinal slots being of circular construction and extending through an opening in said cup.

3. A shade roller, comprising a roller with a hollow end, a round peg on the solid en d, a cap on the hollow end, a cup supported in the cap, pawls on said cup, a rectangular peg projectingV through said cap and having a portion with longitudinal slots for receiving said pawls, a spring rod seat attached on said cup and formed with an opening through which a portion of said peg passes, a spring rod with one end engaging said seat and attached on the inner end of saidv rectangular peg, and a spring on said rod having one end attached on said rod and the other on said seat whereby said peg is maintained resiliently extended by said spring, said rod seat having a cup portion for engaging the end of the rod, arm portions extending from said cup portion and directed against said cup, and means for attaching the arm portions onto the cup.

4. A shade roller7 comprising a roller with a hollow end, a round peg on the solid end, a cap on the hollow end, a. cup supported in the cap, pawls on said cup, a rectangular peg projecting through said cap and having a portion with longitudinal slots for receiving said pawls, a spring rod seat attached on said cup and formed with an opening through which a portion of said peg passes, a spring rod with one end engaging Vsaid seat and attached on the inner end ot said rectangular peg7 and a spring on said rod having one end attached on said rod and the the portion of said rectangu-` other on said seat whereby said peg is maintained resiliently extended byfsaid spring, said rod seat having a cup portion for engaging the end of the-rod, varm portions extending rfrom said cup portion and directed against said cup, and means for attaching the arm portions into the cup, said latter means comprising tongues projecting from the arms and engaged through openings in thecup and turned at right angles after insertion.

5. Ashade roller, comprising a roller with a hollow enc-, a round peg on the solid end, a cap on the hollow end, a cup supported in the cap, pawls on said cup, a rectangular peg projecting through said cap and having a portion with longitudinal slots for receiving said pawls, a spring rod seat attached on said cup and formed with an vopening through which a portion of said peg passes, a spring rod with one end' engaging said seat and attached on the inner end of said rectangular `peg, and a spring on said rod having one end attached on said rod and the other on said seat whereby said peg is maintained resiliently extended by` said spring, said spring rods being formed at its free end with a transverse slot receiving the end of the spring for relatively holding these parts, and the other end of the spring being connected upon an arm used for supporting said rod seat.

6. A shade roller, comprising a roller with a hollow end, a round peg on the solid end, a cap on the hollow end, a cup supported in the cap, pawls on said cup, a rectangular peg projecting through said cap and having a portion with longitudinal slots for receiving said pawls7 a spring rod seat attached on said cup and formed with an opening through which a portion of said peg passes, a spring rod with one end engaging said seat and attached on the inner end ot said rectangular peg, a spring on said rod having one end attached on said rod and the other on said seat whereby said peg is maintained resiliently extended by said spring, and means for normally holding said peg against depression and carried on said seat.

7. A shade roller, comprising a roller with a hollow end, a round peg on the solid end, a cap on the hollow end, a cup supported in the cap, pawls on said cup, a. rectangular peg projecting from said cap and having a portion with longitudinal slots for receiving said pawls, a spring rod seat attached on said cup and formed with an opening through which a portion of said peg passes, a spring rod with one end engaging said seat and attached on the inner end of said rectangular peg7 a spring on said rod having one end attached on said rod and the other on said seat, and means for normally holding said peg against depression and carried on saidseat, comprising a bell crank pivotally mounted inteirnediately on said seat, a spring urging one arm of said bell crank against said sent and behind a portion of the deplessible peg to restrain depression, and the other end of said bell Crank extending through openings in said roller and said cap t0 tlie exterior'.

In testimony whereof I have afixed by signature.

HERMAN J. BAUMANN.