US2437647A

US2437647A - Takedown type wall bracket

Info

Publication number: US2437647A
Application number: US540848A
Authority: US
Inventors: Robert E Mclean
Original assignee: Individual
Current assignee: Individual
Priority date: 1944-06-17
Filing date: 1944-06-17
Publication date: 1948-03-09
Anticipated expiration: 1965-03-09

Description

March 9, 1948; R, E, MOLEAN 2,437,647

TAKE-DOWN TYPE WALL BRACKETS Filed June 17, 1944 Patented ar. 9, 1948 STTES PATENT QFFICE This invention relates generally to the class of supports and pertains more particularly to a support of the wall bracket type.

A principal object of the present invention is to provide an improved article supporting wall bracket structure including a wall attached unit and an arm, wherein the arm may be shifted readily from an operative to an inoperative position or may be easily and quickly disconnected and removed from the wall attached unit as may be desired.

Another object of the invention is to provide a wall bracket structure of the character above stated, wherein, when the arm is applied to the wall attached unit, and is in working position or in a swung-out'of-the-way position, it will be securely maintained against any up and down movement, thereby making the device particularly well suited for use in supporting rotary can opening devices or other kitchen utensils of a corresponding nature.

Still another object of the invention is to provide in a wall bracket of the character stated, a novel means of automatically securing the arm in a desired position for use when the arm ha been swung into such position.

Another object of the invention is to provide in a wall bracket structure of the character stated, a novel arrangement whereby, when the arm has been swung in one direction to an out-of-the-way position, it will be frictionally retained in such position but may be easily and quickly swung back to latched working position without necessitating the manipulation of any holding or securing elements. 7

Still another object of the invention is to provide a wall bracket of the character stated, wherein the detachment of the arm from the wall carried unit or the attachment of the arm thereto ready for swinging movement into latched working position or into an out-of the-way position, may be easily and quickly accomplished merely by disposing the arm in a prescribed relation with the wall attached unit and without the employment of any tools or implements.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawing forming a part of the specification, with the understanding, however, that minor changes or modifications may be made in the invention as illustrated so long as such changes or modifications do not depart materially from the scope of the invention as expressed in the appended claims.

In the drawing: 7

Figure 1 is a View in top plan of the wall bracket of the present invention, showing the arm in latched operative position.

Figure 2 is a view in front elevation of the structure as illustrated in Figure 1, the am being in transverse section.

Figure 3 is a view in side elevation of the structure with the parts in the positions shown in Figures 1 and 2, a part of the latching device being in section.

Figure 4 is a view in perspective of the Wall attached unit from which the arm has been removed.

Referring now more particularly to the drawing, it will be seen that the take-down type swingout-of-the-way wall bracket structure of the present invention comprises two main parts which are the wall attached unit A and the arm B which is pivotally connected to the unit A and. which may be employed for supporting any kind of kitchen utility device, such as a rotary can opener, a juice extractor or any other object which it is desired to mount or hang on a wall or similar support.

The wall attached unit comprises a back plate it], from the upper or top edge of which extends the ear ll while from the bottom edge there extends in parallel relation with the ear II, the ear l2 which is of greater width and extends farther outwardly from the back plate l0, than the top ear H.

The back plate H] is provided with a suitable number of apertures I3 for the reception of mounting devices such as screws It or the like and it is preferred that the edges of these apertures be beveled or reamed so that the heads of the screws [4 may be set flush with the face of the back plate.

The outer or forward edge portion of the ear H is substantially semi-circular and there is formed through the approximate center, of the semi-circular portion, the circular opening I5. Leading from this opening l5 obliquely laterally and forwardly is a slot I5 which opens through the edge of the ear.

Mounted upon and secured to the top of the lower ear l2, concentric with the opening l5 of the top ear, is the pivot post ll which is of a diameter materially less than that of the opening [5 and which extends upwardly into such opening where it terminates with its top surface in or just below the plane of the top surface of the ear H. The top end of the post I! is chamfered slightly to facilitate the application to the post of the hereinafter described hinge sleeve.

The forward edge of the lower ear 12 has a portion I8 which is curved or rounded concentrically with the post I1 and which, as shown in Figure 1, extends beyond the substantially semicircular forward edge of the top ear vll. This concentric edge portion 18 is shown as extending from a point slightly to the right of a radial line perpendicular to the plate [8, around to the left to a point in a radial line very nearly paralleling the 3 plate l where it dips in to form the notch I9 which is connected with the edge I8 by the slightly outwardly bowed cam portion 20.

Upon the radial line perpendicular to the plate ID, the edge N3 of the ear |2 has the square relatively deep notch 2| formed therein which functions as the keeper for the hereinafter described latching member.

As shown the concentric edge l8 extends only a slight distance to the right past the keeper notch 2| where it then dips in along the camming edge portion 22, to join a short straight edge portion 23, the transverse center of which straight edge portion is substantially in the same vertical plane as the center of the slot It.

The unit B comprises an arm 24 which is in the form of a relatively long fiat plate, the overall width or height -of which is greater than the distance between the ears II and 2 by an extent substantially equal to the thickness of the top ear I I as shown in Figure 3.

At its inner end this overall height of the arm 24 is reduced in the top edge of the'arm as indicated at 25, to substantially equal the distance between the two ears and this reduced inner end portion of the arm is shaped to provide the cylindrical bearing sleeve 26 which terminates in the flat tongue 21 which is positioned against one side of and is riveted as at 28, to the arm.

The reduction in the width of the arm 24' extends only to the point where the sleeve 26 begins to take form and also applies only to the tongue 21 so that in that part of the arm from which the cylindrical bearing sleeve is actually formed the material is unchanged in width and consequently when the bearing sleeve has been placed in position upon the pivot post H the lower or bottom edge of the sleeve will rest upon the top of the ear l2 and the top end. of the sleeve will lie within the bearing opening l5, substantially filling the space between the edge of the opening and the pivot post.

The width of the slot I6 is slightly greater than the double thickness of the arm so that it will be readily seen that the double thick portion of the arm where the tongue 2'! lies, may be readily passed through the slot It in the process of slipping the bearing sleeve onto the pivot. post H.

The numeral 29 designates the latching pawl which coacts with the keeper notch 2| to maintain the arm 24 in operative or working position. This pawl comprises a single piece or plate of material which is bent to a U-shape as clearly shown in Figure 2 whereby there is formed the bottom or yoke portion 39 and the spaced parallel side portions 3|. These side portions have their top edges slanted from one end of the pawl to the other so that they are of greater height at the inner endoi the pawl.

The pawl 29 is positioned with the lower edge of the arm 24 between the sides 3|. The high ends of these sides are in close proximity to the edge of the tongue 27. A pivot pin 36 passes through the side portions 3| of the pawl near the tops of the high ends, thus the pawl is pivotally attached to the arm with the inner vertical edge of one side 3| contacting the edge of the tongue 27 to maintain the pawl parallel with the arm, when the arm is in certain positions,

The bottom or yoke portion 38 of the pawl is spaced slightly below the bottom edge of the arm and in this space, which is designated 32, is located the slightly longitudinally curved leaf spring 33 which has one end engaged in a notch 34 in the lower edge of the arm adjacent the inner end of the pawl. This spring curves downwardly from the notch 34 to contact the bottom 30 of the pawl and then curves upwardly where its outer end is slightly reversely curved as indicated at 35 and contacts the lower edge of the arm. Thus the outer end of the pawl is normally urged to swing downwardly on the pivot 36.

In mounting the arm in position upon the wall attached unit A, the arm is located in the position shown in broken lines at the right of Figure l with the bearing sleeve aligned with the pivot post [1. It is then slid down the post so that the sleeve passes through the opening l5 and the portion of the arm at the tongue 21 moves through the slot IS. The distance of the straight edge portion 23 of the lower win from the center of the post is approximately equal to or may be slightly less than the distance between the center of the bearing sleeve and the free vertical edge of the tongue 21. Consequently, when the sleeve is moved downwardly on the post until it comes to rest against the top surface of the ear I 2, the inner edge of the pawl or the vertical edges of the portions 3| will move across the edge 23 of the lower ear.

If the arm 24 is now swung on the pivot post H, to the left, the inner edges of the portions 3| of the latch pawl will ride over the camming edge portion 22 so as to swing the outer end of the latching pawl upwardly against the tension 01' the spring 33 and such edges of the portions 3| will then move along the concentric edge l8 until the pawl snaps into the keeper notch 2|. The arm will thus be firmly held in place for use and it will be readily seen that since a portion of the arm has passed under the top ear it cannot be moved vertically and it will be held by the latching pawl from swinging in either direction.

If the arm is to be left on the wall attached unit but it is desired that it be moved to an outof-the-way position, pressure may be applied to the underside of the outer end of the latching pawl so as to disengage the pawl from the keeper notch 2| whereupon the arm may be swung around, allowing the pawl to ride over the concentric edge I8, until the retaining notch I9 is reached whereupon the pawl will ride smoothly into this notch and will maintain sufficient frictional engagement therein to prevent accidental swinging of the arm outwardly. When the arm is to be swung out the application of positive movement to the arm to swing it toward the right, will cause the pawl to automatically oscillate through its engagement with the camming edge 20 which connects the bottom of the retaining notch IS with the concentric edge l8.

While the device has been illustrated as having the retaining notch IE5 at the left side of the unit, it will be readily apparent that the position of this notch and of the straight edge portion 23 may be reversed, together with the required reversal of the slot I6, if desired.

From the foregoing description it will be read ily apparent that there is provided in the present invention a novel bracket arm and mounting means therefor wherein, when the arm is operatively coupled with the supporting unit A, the hinge sleeve will be rigidly supported upon a pivot post with the upper end of the sleeve rotatably engaged in the aperture l5 whereby a firm pivotal connection is established between the arm and the part of the back structure which is fixed to a support such as a wall or the like. At the same time while the arm can be locked firmly in operative position or can be easily and quickly oscillated to an out-of-the-way position, it may also be easily and quickly detached from the fixed unit without the necessity of removing any part or the employment of any tools or other implements to efiect the desired separation of the two units.

It is also to be understood that while the device has been illustrated as having the ear 12 at the bottom of the unit, the entire bracket structure may be mounted in the reverse position from that illustrated so that the latching pawl 29 and the ear l2 with which it cooperates, will be at the top.

I claim:

1. A support of the character stated, comprising a body designed to be attached to a supporting structure, a pair of spaced parallel ears carried by the body, said ears having outer circular edges and the circular edge of one ear being or" greater diameter than the other, the said other ear having a circular opening therethrough and a slot leading from the opening through the edge of the ear, a pivot post secured to the said one ear in concentric relation with said circular opening and extending through the space between the ears, an arm, a bearing sleeve extending across an end of the arm and adapted for extension through said opening to receive the pivot post, the slot being of a width to pass the portion of the arm adjacent the bearing sleeve, a latching pawl pivotally attached to the arm adjacent to the edge of the said one ear for sliding contact with such edge, a keeper notch formed in the edge of the said one ear to receive said latching pawl, the keeper notch being disposed in a position to maintain the arm against swinging movement in a position removed from said slot, the said edge of the said one ear having a second notch adapted to have the pawl frictionally retained therein.

2. A structure as set forth in claim 1, with spring means interposed between a part of the latch pawl and the adjacent edge of the arm and normally urging oscillation of the latch pawl toward the edge of the adjacent ear.

3. A structure as set forth in claim 1, in which the edge of the said one ear is broken by a short straight portion extending transversely of a plane extending radially from said post through said slot, and means secured to a side of the arm against which the pawl is adapted to bear to be maintained in spaced relation with said straight edge portion when the bearing sleeve is being slid onto the pivot post to facilitate the mounting of the arm on the support.

4. A support of the character stated, comprising a body member carrying a pair of spaced parallel ears and adapted to be mounted in a fixed position, one of said ears having a circular aperture therethrough and a narrow slot leading from the aperture through the edge of the ear, a post supported upon the other ear in concentric relation with said aperture and extending between the ears, an arm, a cylindrical bearing sleeve secured transversely of an end of the arm and having an overall diameter for snug extension through said opening and having an internal diameter for pivotally snugly receiving said post, the slot being of a width to pass the portion of the armadjacent the sleeve, the arm being oscillatable on the post, means for securing the arm against oscillation on the post and in a position removed from the slot, said arm securing means comprising a latching pawl pivotally attached to the arm and a keeper notch formed in the edge of an ear adjacent the latching pawl for the reception of the latter, and resilient means normall urging oscillation of the pawl toward the edge of the adjacent ear.

5. A support of the character stated, comprising a body member carrying a pair of spaced parallel ears and adapted to be mounted in a fixed position, one of said ears having a circular aperture therethrough and a narrow slot leading from the aperture through the edge of the ear, a post supported upon the other ear in concentric relation with said aperture and extending between the ears, an arm, a cylindrical bearing sleeve secured transversely of an end of the arm and having an overall diameter for snug extension through said opening and having an internal diameter for pivotally snugly receiving said post, the slot being of a Width to pass the portion of the arm adjacent the sleeve, the arm being oscillatable on the post, means for securing the arm against oscillation on the post and in a positionremoved from the slot, said bearing sleeve having one end disposed for bearing engagement within and against the edge of the circular opening and the portion of thearm immediately adjacent the bearing sleeve being of a width substantially equal to the space between the ears to be maintained against axial movement on the post during substantially the entire extent of its turning movement around the post between the ears.

6. A support of the character stated, comprising a plate designed to be secured in a fixed position, a pair of spaced ears extending from one side of the plate, one of said ears having a circular opening therethrough and a slot leading from the opening through the edge of the ear, a pivot post secured to the other ear in concentric relation with said opening, an arm having a bearing sleeve formed transversely of one end, the bearing sleeve being of an outside diameter to snugly pass through said opening and having an inside diameter to snugly receive said pivot post, the slot being of a width to have the portion of the arm adjacent the bearing sleeve pass therethrough, a shiftable latch member supported upon the arm, and means facilitating the coupling of the latch member with an ear to maintain the arm against swinging movement and in a position removed from the slot, said shiftable latch being pivotally attached to the arm and adapted to oscillate relative to the edge of the said one ear with which it has latching connection, the said latching con-- nection between the latch and the ear adjacent thereto being established through the engagement of the latch in a notch in the edge of the ear.

ROBERT E. McLEAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 238,193 Winslow Feb. 22, 1881 2,248,410 Moeller July 8, 1941 2,252,952 Vieth et al Aug. 19, 1941 2,258,583 Berkman et a1. Oct. 14, 1941