US1886741A - Stanchion - Google Patents

Description

Nov. 8, 1932. 1. J. RICKEY STANCHION nFiled May 51, 1927 jf'gr.

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Patented Nov. 1932 russa J. arcxnr, or cnDAru n-Arrns, IowA, AssIGNoIt To 'IIALL MANUFACTURING oo., or CEDAR RAPIDS, IOWA STANCHION ApplicatiOn' filed VMay 31, 1927.V Serial N0. 195,230.

This invention relates to stanchions such as are used in animal stalls, and more especially in Adairy barns, for securing the animals properly in such stalls.

Une of the objects of the invention is to provide a stanchion which may be conveniently opened and closed with one hand.

A further object is to provide a positive and unfailing latch for the swing-bar of the stanchion.

A further object is to provide means whereby undue jar of engaging parts is prevented when the swing-bar is thrown back to open position.

A further object is to provide for the rise and fall of the swing-bar, so that with a practically straight bar, a straight, laterally extending arm may be used to hold the upper end of the swing-bar definitely and riffidly in position, without undue enlargement of the throat of the swing-bar head.

Other objects and advantages may appear as the invention is hereinafterdescribed.

Inthe accompanying drawing, forming a part of this speciiication, Fig. 1 is an elevation (rear, usually) of a stanchion embodying the invention. Fifi'. 2 is a fragmentary view in a central, vertical plane, sho-wing the outboard stop for theswing-bar in relation to the latch. Fig. 3 is a similar view showing the parts in latched position. Fig. 4 is a fragmentary view on an enlarged scale, as seen from fthe right of the section line 4-4 of Fig. 1. 5 is a fragmentary and centrally sectional view illustrating a modified mounting of the swing-bar.

The stanchion is in the main of a familiar type, having a fixed side-bar 5 formed with a laterallyl extending upper arm 6 and a similarly extending lower arm 7. This structure is supposed to be suspended from an overhead rail (not shown) by a short length of chainv 8 attached to a clip 9, the latter being in the nature of a clamp secured adjustably on the arm by bolts 10, 10a. A similar chain 11 serves to anchor the sidebar as a whole to the floor of the stall, or to the manger (not shown), the chain connecting with another clip 12 clamped to the lower arm in the same manner as above described.

Adjacent to the lower clip is adjustably, attached to the arm in the samemanner an upstanding foot 13, and swingably connecting with this foot is the other side member of the stanchion,-which is designated as the swing-bar 14. Thisl and the fixed bar, so

, called, though it has a limited movement, are

formed of a standard steel known as U-bar,

which is sufiiciently rigid, and with its rounded side disposed inwardly may be used with or without the wooden liners 15, though it is preferred to use such liners, especially in the winter of a cold climate. The channeled upper side of the upper arm also facilitates the mounting and operation of the latch and its related parts, as will presently appear.

To the lower end ofthe swing-bar is secured a forked hinge-piece 16 connecting pivotally with the foot by a bolt 17. By slotting the bolt-hole in the foot, as shown in Fig. 5 a part or all ofthe up and down movement of the swing-bar may be provided for.

To the upper end of the swing-bar is Vattachedrthe head-piece 18, whose upper end is formed as a fork-to straddle the arm 6, as best shown in Fig. 4. ts shank 19 fits in the channel of the U-bar, and is shown slotted at 19a for fastening bolts 20 and s'urrol'lnding` thimbles 21 which permit the nuts tobe drawn tightly on the bolts but leaver the shank free to slide up and down the length of the slots, as indicated yby the dotted outline in Fig. 1. VThe fork is formed withV re-entrant angles at 18a, and terminates in upwardly extending lugs 22, between which is mounted a.. latch 23 on a pivot-bolt 24. The latch is provided with a lateral hub 23a, and on this is mounted a coil-spring 25 engaging the latch at 231) and theside-lug adjacent at 22a. The movement of the latch is limited by inwardly projecting lugs or -nibs 22o and 220. A tai-lpiece 23d serves as a hand-lever for disengaging the same. At the opposite end is a hook 23e with an inclined nose whereby the hook engages the clip-bolt 10a between the sides of the clip, as shown in Fig. 3. Y' J ust back of the hook is a depending lug 23]E extending into Cil (tft

shape of the parts being designed to prevent the latch-lug from jumping over the stop on engagement.

It will be evident that when the swing-bar is thrown to the closed position the latch is positively engaged, since the Contact of the lug 23]c with the bolt 10a will force the hook to latching position, even if for any reason the latchspring should fail to function.

` It is to be noted also that the latch'and its spring act as retarders of the swing-bar outwardly. Instead of the impact of a rigid part against a rigid abutment, tending to wear, loosen, or break the parts, the latch is caught by the stop and tilted upwardly against the tension of the latch-spring, and the swingbar comes gently and quietly to rest. In this retardation the forked head itself has a part, one or both of the shoulders 18a sliding for a space on top of the arm 6, and taking the friction due to the weight of the head or the entire swing-bar.

It will be evident that the manipulation of the swing-bar is easy and simple, and may be done with one hand, which is not only convenient for a one-armed man, but for anyone with but one hand free. The construction is such, furthermore, that the latch by its single hook may engage the clamp-bolt at the middle and between the cheeks of the clip, the bolt thus serving a double purpose, and equally well adapted for both.

The sliding action of the swing-bar, or its head, up and down makes it possible to secure much rigidity against the lurch of a cow,

transversely of the arms 6 and '7 as may be required, especially as the head needs little or no offset toward the upper clip, and there is no 'need to weaken it by widening the head vertically to swing in an are over a straight arm. A curved arm would of course meet the difficulty if no lateral adjustment of the swing-bar were ever required, for thin or thick-necked animals, but any shifting of the foot support for the swing-bar changes the arc of movement of the head, and a comparativelyhigh opening inthe head would-still be required. The improvement permits the use of a straight' arm, which is practically and economically desirable, and at the same time makes it possible to use a latch of lim' ited height and adapted to engage one of the regular clamping bolts of the adjustable clip.

lVlhether the slip of the swing-arm up and down beat the foot, as in Fig. 5, or at the head, 'as in Figs. 1 and '3, is largelyamatter of choice. In either case there is a sliding movement of the structure between the head and-foot, inpractically a direct line, and the rigidity of the swing-bar `against lateral, twisting strains by a lurching animal is not impaired.`

jI-Iaving thus claim: l

1. lIna stanchion having a fixed side-bar :described my invention, I

with laterally extending upper and lower arms, and formed integrally of U-bar, a clip clamped to the upper arm and serving as a support for the fixed side-bar, a swing-bar carried pivotally by the lower arm, and provided with a head slidable along the upper arm, a latch pivoted over the U-barchannel and in said head, and adapted to hook on one of the clip bolts, a stop in said channel near the outer end, and a depending lug forming a part of the latch, and adapted to engage said stop elastically as the swingbar'moves to the open position.

2. In a stanchion having a fixed side-bar with straight, laterally extending upper and lower arms, a supporting clip on the upper arm, a foot attached to the lower arm, a swing-bar pivoted to the foot, an upwardly forked head in substantial alignment with the swing-bar and slidably but inflexibly connected therewith, and closely slidable along the upper arm, and an independent, manually operable latch with a depending catch to engage a cross-bolt of the clip, pivoted in the fork, and provided with a spring to press it into latching position.

3. A stanchion comprising integral top, side and bottom bars, and a side bar pivoted on the bottom bar to swing in a substantially vertical plane, the swinging bar having an open upper projection extending above the top bar, a projection extending above the top bar between the parts of the open upper end of said swinging bar, said projection serving as a stop, an element of a latching means connected to said top bar, and a latch pivoted between the parts of the upper end of the swinging bar, the swinging movement of the latch being limited by said second mentioned projection so that the latch is stopped before it engages said top bar.

4. In a stanchion having a fixed side-bar with laterally extending upper and lower arms, a. supporting clip on the upper arm having a bolt extending therethrough, a swing-barY having pivotalA connection with the lower arm and having a head substantially embracing the upper arm, and a manually operable latch provided with a depending hook to engage-said boltfof the clip, and pivoted in said headthe head being slidable along the upper arm inwardly and outwardly, A'and a stop located adjacent the end of the upper arm to limit the outward swing of the swing-bar, in combinationwith stop means for limiting the swing` of the latch toward the upper arm. f s

In testimony whereof I afix my signature.

JESSE IRICKEY. l

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