Nova Patents
US2746784A

Latch

Abstract

This record has no abstract on file.

US2746784A, drawing sheet 1
Sheet 1 of 2

Term

Term ended

Expired 22 May 1973, 53.3 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

3 claims: 2 independent, 1 dependent

  1. 1
    What is claimed is:• ?’ A, assembIy comprising, in combination, an integral dish shaped mounting member having a base formed with a relatively short slot, a peripheral wall 70 perpendicular to said base and a peripheral mounting flange extending from the outer edge of said wall substantially parallel to said base;an elongated latch bar This invention relates to latch constructions and, more particularly, to a simplified, rugged spring latch construction in which the manipulating handle is recessed m the latch mounting member so as to be substantially flush with the face of a door or the like on which the latch is mounted. Recessed latch constructions as hitherto provided have been characterized by complexity of parts and assembly These characteristics have not only resulted in relatively high manufacturing costs but also have a tendency to malfunction due to the number of components of the latch and their relatively complicated assembly. In contrast thereto, the latch construction of the present invention is characterized by a minimum number of component parts assembled in a simplified manner, certain of the parts being permanently united into an integral subunit to further reduce the number of separate components More particularly, the invention latch construction includes a cup or dish shaped mounting member or casing, preferably substantially rectangular in outline, whose shaped opening or aperture in a door or the like. The mounting member has a peripheral, outwardly extending flange by means of which the latch assembly may be spot welded or otherwise secured to the controlled closure, having one end bent outwardly to form a spring abutment, is slidably engaged with the outer surface of the bottom of the dished casing, being held thereto and guided by a spring housing and bolt guide. The two guiding elements are spaced longitudinally of the bolt, and preferably welded or brazed to the latch casing, with the spring housing comprising a flanged box having an open end receiving the bent end of the bolt which engages a coil spring abutting the closed end of the box. In alignment with the bolt, the base of the casing is , formed with a short slot of substantially the same width ' as ths bolt. A Z-shaped bracket has one leg disposed m this slot and welded or brazed to the bolt, this leg, in cooperation with the slot edges, forming guiding means for the bolt. The web of the bracket has a length of the order of the depth of the casing, and the opposite leg of the bracket carries a substantially rectangular latch handle or manipulator. The handle lies within the casing, with its front face substantially flush with the outer flanged surface of the casing. ° . For an understanding of the invention principles, ref- 60 J «W^nts. erence is made to the following description of a typical embodiment of the invention as illustrated in the accompanying drawing. In the drawing: thfinvention;fr°nt elevation view °f a latcb embodying 6S ^aXg”°ηο“ΡΥΐηϊρΓβΤ Fig. 2 is a longitudinal sectional view on the line
  2. 2
    2—2 of Fig. 1; Fig. 3 is a rear elevation view of the latch; and Figs. 4 and 5 are transverse sectional views of the latch taken on the correspondingly numbered section lines of Figs. 1 and 3, respectively. ponent parts assembled in a simplified manner, certain —*„ ’‘“' i — ΐ 2 i unit to further reduce the number of separate components More particularly, the invention latch construction includes a cup or dish shaped mounting member or casing, preferably substantially rectangular in outline, whose preferably rounded body portion is adapted to be set into a correspondingly 35 z-shajed bracket 23 shaped opening or anartu™* in a Hnnr +κ« ι:ι,Λ mu. , ? > — —® uvuivouat »uuiwr than the slot and the bracket 23 having substantially the Wintn λ-Ρ 1αλ14· t__i - . J „ J . . 77 ” -------- Viuz-vu IV UV1L 25 and, in cooperation with slot 18 serves as a guide for A latch bolt, in the form of an ββη^εΓ^βίηΓ^Ηη 40 TLWiI1 be ξΟίξά that “garment of the end Lviiur nr.A enA i™, ™h, s.trlp of le§ 22 with one end of slot 18 serves to limit proiec• firm r»-F kr\U « 12__ίχ_·_____·.· . - . - . J3 slidably engaging the outer surface of said base and aligned with the slot therein;guiding means for said bar secured to the outer surface of said base;spring means mounted on the outer surface of said base and biasing said bar to the extended, latching position;a bracket secured to said bar and extending along such slot in guiding relation therewith, and having a portion extending perpendicularly to said base;and a handle secured to the outer end of said bracket portion and lying within said mounting member, said handle comprising an angular member extending across said mounting member with one leg substantially parallel to said base secured to said bracket and forming a grip portion spaced from said base and the other leg extending substantially perpendicular to and engageable with said base to guide the handle relative thereto;said bracket, in cooperation with the slot, limiting projection of said bar. 2. A latch assembly comprising, in combination, an integral dish shaped mounting member, having a base, formed with a relatively short substantially rectangular slot a peripheral wall perpendicular to said base and a peripheral mounting flange extending from the outer edge of said wall substantially parallel to said base;a box shaped spring housing secured to the outer surface of said base adjacent one end thereof and having an open end;a coil spring mounted in said housing;a substantially flat elongated bolt engaged with the outer surface of said base in alignment with such slot, said bolt having 2.746,784 4 - a an outwardly bent end extending into said housing and engaged with said spring;a bolt guiding bracket embracing said bolt and secured to the outer surface of said base adjacent the other end thereof;a bracket secured to said bolt and extending along such slot in guiding relation therewith, and having a portion extending perpendicularly to said base;and a handle secured to the outer end of said bracket portion and lying v/ithin said mounting member, said handle having a grip portion spaced from said base;said bracket, in cooperation with the slot, limiting projection of said bolt.
Independent claims2