US2613097A

US2613097A - Dovetail construction

Info

Publication number: US2613097A
Application number: US90597A
Authority: US
Inventors: Burnie J Craig
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-04-30
Filing date: 1949-04-30
Publication date: 1952-10-07
Anticipated expiration: 1969-10-07

Description

Oct. 7, 1952 B. J. CRAIG 2,613,097

DOVETAIL CONSTRUCTION Filed April 30. 1949 2 SHEETS-SHEET l Oct. 7, 1952 B, J. CRAlG DOVETAIL CONSTRUCTION Filed April 50. 3.949

Patented Oct. 7, 1952 UNITED aolaoar` DOVETAILCONSTRUCTIQN- Burnie Loraig,` Los Anse1csCounty-,.Geli.f,J Application Apr-ileso, 1Mo-,serial No. 90,5197

ti 'Ihisy invention, relates to` a `doveta-il construe on;M

The general object ofU ther invention isztosprovide anv improved dovetail` construction partit,-f ularly adapted fory use ongautornotive vehicles.` 1 l A further objectfof Vthe invention iswto pro.- video dovetail construction` including `novel means for mounting the,` dovetail` member.

Othery objects and the advantages; of;` the inf? ventionI will be apparent` from the following de.` scription taken in `connection withthe accom-lI panying drawings,r wherein: y

Fig. 1 is a plan view ofthe latch housing; blank; Fig. 2 is a View of;` the latch housingin completed form;

. 3 is a sectiontaken on line 3`3,`2Eig. 2;

Fig.. 4 is a plan view of the blankfor the catch release arm support; V

Fig. 5 is a top view of the catch release arm support after the blank shownin` Fig. 4 is folded Alig..V 6 is` a frontA View of the catch release,`

arm support;

Fig. 7 is an, edge View of the catch release arm support;` v

` Eig. 8 `isa rear View of the catch release arm support;

Fig.` 9 is a bottom .viewpf theleatch` release armsupport;

Fig` 1o is a view similar to Fig. 8, showing the dovetal member intted position;

mail is, a sectional view with the front. portion removed, showing the boltstriking the catch and depressingthe latter;`

`V,Figglzis an extended `View shovvingthe` elements vof the dovetail member; A

Fig. 13 is a side elevationof the i:'iovetail` meme ber in assembledform; Y l l Fic.` 1.4 isa bottom, View of the dovetailmem.- ber, andv I Fig. l5 is an isometric View showing therelease arm.

The subject matter described and claimed in this applicationwas disclosed in my prior application Serial No. 533,958I filed May 3, 1944, nowPatent No. 2,450,372, grantediseptember 28, 19485 In the accompanying drawings the 4construe-- tion which includes the doveta-il is shown as erh--y bodied in a catch device -indicated generally at |68 (Fig. 11). As shown, the catch device includes a catch housingindicated generally at |69, a catch casing, indicatedlgenerally 'at |10 and `which is pivoted to the catch support housing, andra support-which is indicated generallyat |1|` and is arranged in the catch'SuDDOl? 4. claims.` (c1. asa-.maat

housing'andwhch serves,` to support aoatch ree lease arm The catch orprojection casing rI1!!` has a catch 2031` mounted thereon. The catch 203 is engaged byfa -bolt` 3|! mounted` in a `vehicle door. l Theldetailed' construction. ofthe catch and bolt andrelated parts` form` no part; 01EA the present invention, .being` shown` and described in the applicants Patent` No.` 2,450,372, granted September-.28; 1948.1

`The catch housing |69 (seeFigs. 1 andfZ) is preferablyv made from a blank which includesa rectangular body portion |112 having bent` up end` franges |13 and |1'3aV and havngpangedge hangend.` Thegbody'. |112` includes `an upperjaw portion |12a .which is spaced from a lower jaw portion |1211, the. two jaw :portions being` rigidly connected ina unitary 'mannerfby a :vertical: porV tion` to provide a generally C-shaped body. Qppositethe;-flangeI -|14uthe body |12 has upper andmloweruedge flanges |15 and |15@ whichrare separated, when the blank is bent to completed form.byfa taperrlgslot |16.`

Attheflower side ofgthe Slot |16 a flangev or guidinggpart |11 is bentupat right angles. to thejbodyrand this; ange `|11 is,l provided 4vvitha rectangular slot |18 through which the` catch 203 .proiects. From the ange |11 a `second flangeqll extends and is bent at right angles to the flange |11 as shown inFig. 3..L Opposite to thelange-IH a shortlange |19a` is` bent up perpendicular to tlfieobocly;- |12.

lThetbody at theinner end of' the slot` |16` is` shown as reinforced by a` strip of metal `|1912 Whichmay be spot welded in place. `This layerof metal |181) as well as the portion of the body adjacent theretolis provided with spaced upper andlower slots; 119e andi 19d into` which. ears. notfshown., onfthebolt Droiect when they are movedto catchleleasing position. The meeting edges of the housing` flanges may be` suitably secured together by welding if desired or the entire catchsupport housing may. be made asa die casting or in any other suitable manner.

The blank is bent into the formshown in Figs. 5 to 9 inclusive, with the tongues Mil-and 2|`9 extending perpendicular tol-the back.` The tongue 220 has

small end tongues

223 and 224 thereon which are arranged in the slots from which the tongues 2|8 and 2|9 are bent. The wing 22| is bent at substantially right angles to the tongue 22D.

The front is provided with an aperture 225 and with an elongated slot 226, the latter extending from the upper edge of the front. The front is cut away as at 221 for a purpose to be presently described. The front ofthe support is provided with 'a` bolt receiving slot 228, the edges of which converge towards a rear edge 230.

A dovetail wedge member is indicated at 23| (see Figs. 12 to 15). This dovetail may be made t as a die casting or otherwise although it is shown in the accompanying drawing as made from three blanks of sheet material, 232, 233 and 234. The u blank 232 has a closed slot 234 therein and has an open ended slot 235 spaced inwardly from the slot 234'. The blank 233 lhas an open ended slot 236 which is -aligned with, andlarger than, the The blank 234 has a slot 234". The

layers

232, 233` and 234 are superimposed and are secured together as by spot welding.

The dovetail includes a face 231, Fig.v 10, which engages the flange 220 on the support Ill and has a face 238 whichis adapted to be engaged by the bolt or abutment 30 `carried by a door when the latter moves into closed 'or engaged position. The tongues 2|8 and 2|9 on the support I'll t in the slot 235 and 234', respectively, on the dovetail and serve to hold the dovetail in assembled position and to guide-the dovetail in its sliding movement `parallel to the flange 220. To permit the sliding action vthe slot 234 v'is longer than the tongue 2 I9 which fits in it. One side of they dovetail slidably engages the face of the portion 2| adjacent to the tongue 2 I9, while the other side of the dovetail is engaged by the portion of the body |12 which is adjacent to the flange |19a. y l

The slot 236 receives aspring239 which engages an upwardly directed end portion 24B 'on the tongue 2|8 and serves to normally urge the dovetail outwardly to the position shown in Fig. 10,.A When the bolt 30 strikes the dovetail (see Fig. 11') it slides the dovetail along the flange 223 which latter slants outwardly and whenever any loose play occurs the spring 239 pushes the dove` tail back into tightly wedged engagement with the bolt. The dovetail is limited in its forward movement by the flange tongue or stop portion 22| and in its rearward movement by engagement of the end of the slot 234 with the tongue 2|9.

Having thus described my invention, I claim:

1. A laminated dovetail comprising a series of superimposed layers of sheet material,A each of said layers having parallel planar faces, an intermediate layer of the series having a portion between the edges thereof removed to form an open ended slot with the open end disposed atone end of the dovetail, a second layer of the series engaging one face of the intermediate layer and including a portion overlapping the open ended slot to close one side of the latter, a third layer of the series engaging the other face of the intermediate'layer and including a portion overlapping the open ended slot tovclose another side of the latter, the second mentioned layer including an elongated slot closed at both ends, the said intermediate layer including a portion overlapping the last mentioned slot to close one side of the latter, the last mentioned slot being open outwardly and adapted to slidably receive a guide member on a support, all of the layers of the dovetail at one edge having a continuous coplanar engaging face adapted to slidably engage a support, all of the layers of the dovetail at the edge opposite to the said engaging face having a second continuous engaging face adapted to engage a door abutment, and means to hold all of the layers together.

2. A keeper structure adapted to be fastened to a vehicle for cooperative engagement with door abutment" means carried on a swinging door, comprising a unitary, generally C-shaped body having a front face and having upper and lower opposed jaw portions which are integral continuations ofthe front face, said jaw portions vbeing spaced apart vertically to provide an opening closed at its inner side by a vertical portion of the keeperbody and including a part which is an integral continuation of the front face and is disposed substantially perpendicular to the front face Aand which rigidly connects the upper and lower spaced jaw portions, a, dovetail wedge, means including a portion on one of the jawrportions and having a surface slidably engaged by a face of the dovetail wedge for slidably mounting the dovetail'wedge for movement on said one of the jaw portions, and spring means urging the dovetail wedge outwardly, the'other jaw portion of the keeper body having a surface disposed on a part thereof which is a continuation -of the front face of the body and is disposed perpendicular to the front face of the body and from which a projection extends for cooperation with the door abutment means, the door abutment means being movable between the other jaw portion and the dovetail wedge in wedging relation thereto, the upper and lower jaw surfaces being held by the keeper body in fixed vertically spaced relation.

3. A keeper structure adapted to be fastened to a vehicle for cooperative engagement with door abutment means carried on a swinging door. comprising a unitary, generally C-shaped body having a front face and having upper and lower opposed jaw portions which are integral continuations of the front face, said jaw Vportions being spaced apart vertically to provide an opening closed at its inner side by a vertical portion of the keeper body and including a part which is an integral continuation of the front face and is disposed substantiallyv perpendicular to the front face and which rigidly connects the upper and lower spaced jaw portions, a dove-tail wedge, means including a portion on one of the jaw portions and having a surface slidably engaged by a face of the dovetail wedge for slidably mounting the dovetail wedge for movement on said one of the jaw portions, and spring means urging the dovetail wedge outwardly, the other jaw portion of the keeper body having a surface disposed on a part thereof which is a continuation of the front face ofthe body and is disposed perpendicular tothe front face of the body and from which a projection extends for cooperation with the door abutment means, the door abutment means being movable between the other jaw portion and the dovetail wedge in wedging relation thereto, the upper and lower jaw surfaces being held by the keeper body, in fixed vertically spaced relation, the said jaw portion which -is opposite to the dovetail wedge including a guiding part which is an integral continuation of the front face and which is sloped downwardlyand projects in advance of the dove'- tail wedge so that the door abutment means will jaw portions which are integral continuations of the front face, said jaw portions being spaced apart vertically to provide an opening closed at its inner side by a vertical portion of the keeper body and including a part which is an integral continuation of the front face and is disposed substantially perpendicular to the front face and which rigidly connects the upper and lower spaced jaw portions, a dovetail wedge, means including a portion on one of the jaw portions which has a surface slidably engaged by a face of the dovetail wedge for slidably mounting the dovetail wedge for movement on said one of the jaw portions, and spring means urging the dovetail wedge outwardly. the other jaw portion of the keeper body having a surface disposed on a part thereof which is a continuation of the front face of the body and is disposed perpendicular to the front face of the body and from which a projection extends for cooperation with the door abutment means, the door abutment means being movable between the other law portion and the dovetail wedge in wedging relation thereto, the upper and lower jaw surfaces being held by the keeper body in fixed vertically spaced relation, the said jaw portion which is opposite to the dovetail` wedge including a guiding part which is an integral continuation of the front face and which is sloped downwardly and projects in advance of the dovetail wedge so that the door abutment means will engage and slide along such guiding part before the door abutment means engages the dovetail, the said one jaw portion at its outer end including a stop portion which is an integral continuation of the front face portion of the body and between which and the vertical portion of the keeper body the said dovetail Wedge is slidable.

BURNIE J. CRAIG.

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

UNITED STATES PATENTS Number Name Date 1,829,916 Winans Nov.. 3, 1931 1,840,785 Moore et al Jan. 12, 1932 1,945,257 Cook Jan. 30, 1934 2,074,191 Roethel Mar.. 16, 1937 2,099,456 v Sweet NOV.. 16, 1937 2,137,271 Devereaux Nov. 22, 1938 2,310,548 Roethel Feb. 9, 1943 2,427,511 Roethel Sept. 16, 1947