Bearings – Rotary bearing – Plain bearing
Patent
1994-01-28
1995-05-30
Footland, Lenard A.
Bearings
Rotary bearing
Plain bearing
384255, 384258, F16C 2302
Patent
active
054196400
DESCRIPTION:
BRIEF SUMMARY
The invention relates to an adjustable support for journals and hinge pins, especially for use with doors and gates.
Sectional gates composed of a plurality of hingedly interconnected panels disposed above or beside one another normally include bearing blocks screwed into the panels, for guide rolls. The bearing blocks have elongated holes in horizontal and/or vertical directions so that the axial position of the guide rolls can be adapted to different local conditions. For adjustment of the guide rolls, usually four screws must be loosened in each of the bearing blocks, then the bearing block is moved into the desired position, normally by hitting it lightly with a hammer, and then the screws must be tightened again. If a sectional gate comprises five panels, for instance, this means that a total of fourty screws must be loosened and retightened. In tightening the screws, frequently the desired adjustment of the bearing block once more suffers a little change so that the adjusting procedure must be repeated.
The same is true of adjustable articulations between the panels of sectional gates and of joints provided on doors and gates, also referred to as hinges.
It is the object of the invention to provide a support for journals and hinge pins which is adjustable more easily and sensitively.
This object is met, according to the invention, by a support having the features of claim 1.
The means of support according to the invention is prepared in such a way that the rotary member is pushed into the bearing bore of the bearing block in any random angular position of rotation, and then the setscrew is threaded in. To facilitate that, the bearing block preferably comes prepared with a transverse bore of greater diameter than the outer diameter of the screw thread. As the setscrew is entered by turning it, the courses of its thread cut into the rotary member. Subsequently the setscrew is fixed in a certain axial position, for example by threading a nut on the screw or by snap engaging a retaining ring.
Having mounted a support means according to the invention, for instance on a panel of a sectional gate or on a leaf of a door or gate or a door casing or gate post, the screw is turned, as required, so that it will move the rotary member together with the journal or hinge pin inserted in it into the desired position. On that occasion the thread courses formed in the rotary member during assembly of the support gradually add up to a worm gear. The rotary member can be rotated through an angle of any desired size and the receiving bore with which it is formed, at the same time, adopts different positions depending on its arrangement with respect to the central bore. The receiving bore, for example, is designated for a journal which supports a roller. Instead, the receiving bore can take up a hinge pin of a hinge on a door or gate. This hinge pin either can be supported for rotation in the rotary member or fixed against rotation therein.
Advantageous further developments of the invention may be gathered from the subclaims.
An embodiment of the invention will be described in greater detail below, with reference to diagrammatic drawings, in which:
FIG. 1 is a perspective view of a first embodiment of a support according to the invention;
FIG. 2 shows the cross section II--II of FIG. 1;
FIG. 3 is a front elevational view, corresponding to FIG. 2, showing a second embodiment;
FIG. 4 shows a view in the direction of arrow IV in FIG. 3;
FIG. 5 is a side elevational view of a third embodiment;
FIG. 6 is a side elevational view of a fourth embodiment;
FIG. 7 shows the view in the direction of arrow VII in FIGS. 5 and 6;
FIG. 8 is a view corresponding to FIG. 2 of a fifth embodiment; and
FIG. 9 is a perspective view of a sixth embodiment of the invention.
All the embodiments illustrated of a supporting means according to the invention comprise a bearing block 10 shown to be a rectangular prism in FIGS. 1 and 2. The bearing block 10 has a bearing bore 12 which defines a central axis A. Inside the bearing bore 12, a rotary member
REFERENCES:
patent: 1787017 (1926-06-01), Paul
patent: 2730413 (1956-01-01), Smith
patent: 4780000 (1988-10-01), Lewis et al.
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