US1802639A - Door check - Google Patents

Description

N M 1 s/MMM@ a April 28, 1931.` H. J. .EsTEY ET Al.

DOORCHECK Filed Feb. 15, 1928 Patented Apr. 28, 1931 y Unirse STATES PATENT ortica HARRY J. Es'rnY AND LLOYD L. EsrnY, or LANsINe,l lw'IIcHIGAN Doon CHECK Application led February 15, 1928.. Serial No.72`54,361.

This invention relates to a door check, and the invention aims to provide a door check which will efficiently perform the function for which `it is intended, and which will con- I5 tinue to so perform after long usage, and

which at the same time is of a simplified construction embodying a minimum number of parts.

`It is appreciated that quite a number of door checks of different kinds haveheretofore been proposed. Some of these door checks have taken the form of a plunger acted upon by a spring. Tt has also been proposed to provide a door checkin the nature of an eccentrically mounted check member adapted to engage the floor by reason of such mounting and which is held in place by a spring controlled locking member co-operating with a plurality of recesses for receiving the locking member. Here again thespring action becomes defective after a period of use. The locking device is arranged to lock the member only in a certain position and it ofttimes occurs that when the check member is in proper checking position the co-operating locking devices are out of position.

The present invention contemplates a check which takes the form of an eccentricallymounted member but, wherein all movable mechanism is eliminated except the check member itself. The invention contemplates frictional means which `acts upon the rotational movement of the check member, and the entire assembly is such that this friction can be maintained throughout long usage and can be increased from time to time if the same be found necessary. l

In the accompanying drawings:

l is a side elevational view of a door provided with a door check constructed in accordance with the invention, and indicating one position in which the check may be positioned upon a door.

' Fig. 2 is a plan View of a check in nonchecking position.

Fig. 3 is a view similar to Fig. 2 but showing the check moved to operative or checking position.

Fig. 4 is a sectional view taken on line 4 4.

. onV the under side of of Fig. 3, illustrating the structural features of the'invention.

ln Fig. 1the door check, which is generally referenced l, is shown applied tothe lower portion and near the free edge of a door 2. This is perhaps an advantageous location for the check, although it can be placed wherever desired. The check consists primarily of two portions, one of which is a flanged member 3 which may be liXed to the door l by suitable screws 4 and 5.v This flange member is preferably a stamping 'and is just deep enough to receive a nut for the attachment of the other part.

The other plate 10 and a portion of the check consists ofa plate l1, both of which are preferably stampings, the plate 11 being provided with an extension 12. Between these two" plates is. disposed a disc of is generally oval in'shape, as shown 1n Figs.

lrubber 13 which 2 and 3. Screws 14 are taken through the plate 11 and received in screw threaded' apertures inthe plate l0. The tigh tening of these screws assemble the two plates and the rubber disc together.

This second portion is rotatably mounted and for this purpose the screw or bolt 15 extends through tlie two plates and therubber disc, which is made tight by erably a'lock washer 17 lis referable to place washers are such as to a nut 16 disposed the member 3, and prefused. Also itis 18jand 19 on the oltv 15, as shownin Fig. ,andthese washers4 provide for frictional turning ofthe rotatable member upon the bolt 15, andY for this vpurpose may advantageously be made of fiber.

The rotatable member is eccentrically mounted on the bolt 15.

Inorder to mount the check on a door the proper position is lirst ascertained, and then D the movable part may be turned by use of the extension l2, to a position which approximates that of Fig. -3,sothat the screw l'can be "putiinto placef'whereupon the check mem'- ber may be reversed and the screw 5 *secured in place. When t-he checlris not in use it may be turned up as shown in Fig. 2 or in some position between that of Fig. 2 and that of Fig. To check the door therotatable part isturne'd upon" the bolt 15 which may con- T- Y floor at this time and there is lifting action on the door. n Ordinarily, there is some slight movement in the door by reason of its hinged mounting so that the door can be raised slightly. Thus, by the weight of the door itself, the door check is held 'down against.

the floor.

One of the features of the invention is the structural arrangement of the rotatable member. A disc of rubber is preferably used, as shown, and clamped between two plates. lt

and a friction washer surrounding said bolt and located between said support-ing cup and the inner face plate whereby tightening of the bolt acts upon the friction disk and to compress the rubber disk to maintain said friction, said supporting plate being positioned on the door so that when the door checkelenientisrocked on the-'bolt intor contact with the floor one of the short sides of the oval disk contacts with the floor.

ln, testimony whereof we, ai'iix our signatures.

Y HAR-RY J. ESTEY. LLOYD L. ESTEY.

will be seen, therefore, that if conditions ever l f require the clamping of the rubber disc can be increased by merely tightening the screws Y 14. The fractional resistance to the rotation of the check memberY is offered by the fiber washers. 'it will be noted that the bolt l5.,

extends throughout the disc of rubber and when 1t 1s tightened the disc is slightly com pressed. Due to this frictienal engagement between the washers with the rotatable parts is maintained. However, if after long use, the friction becomes lessened it can easily be restored by tightening the screw 15.

It has been proposed to provide a check with a rubber ring or tire for engaging the floor. In such a construction a rubber ring is placed on its mounting under tension and the result is that the ring loses its elasticity after long use thus interfering with the eliicient operation of the check. By utilizing a rubber disc, however, the rubber is not under tension so that it does not become dead, even after long use. The rubber disc however,

may be under slight compression in order to effect the proper friction action, butt-his is not suflicient to materially Yeffect the life of the rubber disc.

Ve claim:

A door check comprising a cupv shapedsupporting member adapted to be placed upon a door with the rim of the cup in contact therewith, securing means passing throughthe bottomof the cup-shaped member for holding the same to the door, a check member comprisingan oval disk ofrrubber, an inner face plate, an outer face plate, a plurality of se-,Y

curing devices passing through the rubber disk and holding the face plates assembled on Y opposite sides of the disk, said faceplates having their outer peripheral edgesA locatedl inwardly of the outer peripheral edge of the rubber disk, one of saidiface plates having .a projectingA piece which extends beyondr t-he peripheral edge of the rubber disk and constitutes an operating handle,`a bolt passing through the facing disks and rubber diskec-Vl centric of the rubber disk and near one of its elongated sides, a nut inside the cup-shaped, support into which the boltis screw threadedL CII

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