CA2038250A1 - Lock with a segmented insert - Google Patents

Abstract

ABSTRACT
A lock with a segmented insert is accommodated within a housing with a cover disposed above the middle of a shaft that is of square cross-section. A bolt is located on one end of the shaft and a cross piece is located on the opposite end. A spring is installed on the middle of the shaft, with one end of the spring resting against the bolt, and the other end against a bear-ing on the other side of which a cage is supported and rotates, the other end of the cage being supported in a second bearing.

Description

~3-~a~ 023 P03 ~ ~ 3 ~3'~

TE~HNICAL DOMAIN:
Tho present inventlon relates to a mechanism for v~rious locks that lncorporato inserts ~nd which aro used to secure doors. In accordanco with the int0rn~tional classi~ication system, this has ~een aQslgned to the design area: E 05 B 27~08.

TECH~ICAL PROBLEM:
The technical pro~lem 1s ~efined by the ~a~ic concept for certain demand~ to be sati~fieq by a lock that incorporates inserts. These are as follows~ n infinitely large number of code combinations; 2~ simple manipulation involving only the in~ertion and removal of the key, without any need to rotate said key; 3) the pr~ventlon of damage attendant on the use of the wron~ or incorrect key or ~ny other foreign hody; 4) the in&ert 18 to be a component part of the lock and accommodated within the lock housing; 5) ~imple r~moval o~ any foreign object that has beon lntrQduced into the lock through the keyway. In other word8, the technical problem has been to ~ind a solution which raiseo the criter1a for ~uality, in the sense of se~urity, durability, and ~impltcity, to a much higher level than has been possible using the ~olutions known up to now.

8TAT~ OF THE AR~:
It lc known to tho present invontors that there are two m~or producerR in Jugoslavia, in Sombor and Kamnik, w~ich manufacture approximat~ly 100 variou8 types of locks, albeit only one in~ert-typ- lock that is also relevant to the essence of the ~3-~a-sl 1~: 53 023 P04 ~ ~ 3 ~ 2 ~, ~

pro~lem. ~hls ina~rt, or cylinder a8 it io al~o ~nown, can b~
slngle or double sided, can be oither long or short, which wi11 depend on the th1c~ness o~ the ~oor, but i8, tn princ~ple, the ~ame solution. ~his insert enta11s the f`ollowing disadvantages:
1) ~ li~ited and 4mall number of codo comblnations; 2) after extende~ use the part~ of the 1 oc~ wear and it bocomes difficult to open the lock, evon by u~ing the original key; 3) the insert can be subjectod to mechanical damage very eastlY, because it i~
so in~talled that one part of ~he loc~ ~s loo~ted beyond the sur~ce of the door ~nd aftor tho introductlon of oil, sand, or any s~milar subst~nce it becomes unusable tor all practical purpo~os; 4) a~ a mattor oP principle, an insort that has been dama~ed in any way 1~ nevor repaired, for this is particularly c08tly, and f1nally, 6~ it can ~e opened oxtremelY ea~ily with or without the key. In other countrios, "improved" inserts with two or even four rows of pins are produced, this being done to incroase the num~er of code com~inations, but thia doo~ not eliminato the shortcomings described abovo. wltho~t doubt, there aro throu~hout the world more up to date solutiona for locks with lnsert~ than have ~een describod horein but the tnventors do not know of any so~ùtlon that apProaches the present invention for a lock with a sogmented in~ert.

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DESCRIPTION OF ~HE SOLUTION TO THE TECHN$CAL PROBLEM:
Before any d~scrlptiOn of the solution to the tochn1cal problem i~ provid~d w1th the help of the drawings ~ppcnded hereto, the principal c~aract~ri~tics of the present tnvention w111 be enumerato~ in order to supplement in thls doscription.
These characteristics are a~ follow8:
1. The large number of codc combinations, which i~ numbered 1n tho mil~10n~.

2. The function~ of latchln~ and locking are carried out in the same manner, which is to aay that the key ia ~1mply in~erted lnto the ~ogmented ineert of ~he lock.

3. The key is 1n~orted into the lock insort by slmPle h~nd presgure, which is to say that e~ch subsequent in6ertion of the key will alternately latch and unlatch the lock.

4. The key is only used from tho outside; on the insido, tho~e ~ame functlons o~ latching and unlatching the door are offected by pressin~ on a knob.

5. Manipulatjon of the lock with the segmentod insert is oxtremely ~impte. e~en for children.
. Th- lock 1nsert i~ located w1th1n the lock housing and tho completo unit 1~ incorporated in the door.
7. The lock insert cannot be damagod a~ a conco~uence of u~ing the Wron~ key or a ~imilar obJect, and noither can it b- dam~ed by tho 1ntroduction of oil, aand, or any 81m11ar ~ubstance.
8. The lock cannot be opened or forced with other than the appropriate key, neither can it be damaged.

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133-E!a-~ i4 0Z3 P06 9. Any foreign object that find6 its way into the lock ln~ort can ea~ily be removed in that it can b~ push~d out from the other slde by t~c ins0rtion of the correct ~ey.
~0. The key for the lock with the se~ment~d insert is stmplel practical, and modern: it is 1-1.5 mm thick, and approx;matoly 20 ~m wlde, 11. The same bolt ls used to latch and to lock the door.
12. Almo~t all th~ parts for the ~egmented insert can be ca~t ~rom ~inc, brass, or similar materlals. Pl~stic can also ba uaed, whlch is unusual ;n this are~ of tochnology. This has been made Po~slble because what ls involved here ar~ exclusively design ~olutlons that do not re~uire a particularly high l-vel o~ precision in the production process.
rhe prosent lnvontlon wlll be described below on the ba~is of the draw1ngs appandcd hereto. Those drawings ~how the ~ollowlng:
F i gu re 1 shows the comp ~ ote lock, at full 8 i ze .
Fi9ure 2: a cro~s-section O~ the pre~ent invention.
F;~ure 3: a lon~itudinal section through t~e loch.
F19ure 4, Figure 5: two viewa of the lock when unlocked;
Flgures 6 and 7 show the lock when locked.
All the parts of the lock are accommod~ted within the hou~1n~ 2 that ~ncorporates the cover 3. The segmented insert 1 ;B ~olned to the housing 2 hy the screw 20. Almost all the comp~nent~ of the lock ar~ arranged in se~uence on tha sha~t 4, 03~ 9l 1~:55 023 p0~ 2035~

which is of ~guare cro~-s~ctiOn. The spring 5 i~ used to roturn the ~olt ~ to lts normal po~itlon. A free (rotatabls) conn~ct10n of the 8haft 4 and o~ tho bolt ~ is produced by the threaded ring 7. ThQ round cage 8 i~ usod to rotat~ the ~haft 4. The cage 8 i~ suPPorted by and rotate~ with1n the tront bearins 9 and tho r-~r be~ring 17. The cross piece 10 ts mounted on the shaft 4 and secured by means of the nut 11. From the o~tside "S," the round ca~e 8 iS rotated through 45 degrees with the help o~ the ge0mented insert 1, which i6 mado.possible by the spring 19 from tho 1nside "U," th~ cago ~ ls rotatod through the same angls of 45 dogrses by movinU tho el-ment that is mado up of a connection to tne knob 15, a guid~ 16, a spring 17, and a slid~ 1~. Thus, tho cros~ pioco 10, like tho cage 8, i~ set to 4B ~e~ree~, because they are connocted bY tho common shaft ~, which is to ~ay that it assumo~ tho open or closod position of the lock, respectively. Thi- chan~e in tho ~tatus of the lock can b~ seon in f1gures 4, 5, 6, and 7. Tho travel "H'` of tho shaft is chi-vod in that ~ecAu8o of tho rotation, tho tooth of the lat~h 13 movo8 the cross pt~C~ 10 and thoroby, through thQ shaft 4, th~
~ol~ ~ as woll, by tho distanco `'H." -The round cage 8 rem~ins b-twoon tho two bearings 9 ~nd 12. If the shaft 4 is now rotated ~hrough 45 de~rees, otthor t'rom tho out~ido `'S" or from tho in~lde `'U," by way of the cago 8, tho lock is closQd, as t~ shown in Fi9ure~ 8 And 7, wh1ch meAns that the tooth of the latch t3 lS
loc~tod between th~ arms of the cross pioce, which can bo ~een by compAring Figuros 5 and 7- If thers i5 no longer any force 03~ S6 023 P~a actin~ on the latch, t~on the spring 14 moves the tooth of the latch back ~nto its startin~ po~ltlon, The quality of tho ~oc~ i~ also characterized by the fact that the same bolt ~ 18 usod both to latch and to lock tho door.
Pago 2 of tho drnwin~S ~hows only the segmented insert 1.
I~ the characteristics of this invention, which havo boen set out in tho lntroduction to tho descriPtion of the technical problem, have been correctly wnderstOOd, then it will be simple to follow tho descript~on as it applies to the eegmonted insert alone.
Fi3ur~ 8 i~ a perspective view of tho segmented insert 1 and F1yure 9 i8 a similar perspective view of the key 34, wh~cn i8 shown in relation to th~ segmented insort 1. Figure 9a shows a two-sided key 34 and Figure 9b showfi a one-sidod key. In regard to the advantago of this invention, described above, wh1ch pormit~ sn sxtremely la~ge number of eode combinations, it must bo mentioned that the key 34 can ~e used in two versions, namely, a singlo-~tded and a double-sidod vorsion. The key is considered two-sidod when it~ left and ri~ht ~tdes are symmetrical, which is to s~y that it can be insertod into the insort o~ the ~ock in eith-r way ~inco the upper and the lower sidos are t~e same. The doubl--~idod key i8 shown ~n Figure 9a. Fi~ure 9b shows tho sin~le-sided koy, and this can only activate the lock insort i~
it 1s inserted when in a Qpecific position. ~owever, the ~dvantagos of these variations are obviou6, for they o~fer an extrem-ly lar~e number o~ combinations.
Fi~ure 10 shows a longitudinal cross-section through the 40gmented insert, with the covor 25 open, tho oPenins for the key 0~-~39-31 1~;:56 ~Z3 P09 2~3~

2~ baing located in th~s cover Figur~ ll, 12, 13, 14, 15, 16, and 17 ~h~w varlous cross-sectiOns of tho insert th~t repre~ent the differ~nt phsses lnvolved in the op~rution of the insert The movable part 21 with ~ll its associated elements ls accommodated within the housin~ of the insert 20 Any numb~r of indlvtdual aegmentg 22 can bo used, and this w ll dePond on the number of code com~inatio~s that is desired The rece~sos at the end (lsft and rlght) of th~ key 34 move th~ part 21 throu~h the worklng travel "H" through the end springs 23i whsn this happens, the 8prings 24 are compr~ssed and if no force i8 exerted by the key tn-Y move the movable part back into it~ initial position ~h- partition 27 is a component 01ement of th~ housing Z0 An~ all of the segmonts 22 move onto this if the appropriate k-y (with th- correet code) i8 us-d; if this is not so, ehts partition serveB a~ a blocking wall that provents movement of the part 21 The Jlot 28 in the segmont 22 h~s a variable an~ular poaition on each of the rogments ln the sories and this actually represonts th- cods combinatton of the insert All of the s-gmonts are arranged in s row on tho common pin 29 and the ends of tho pin 29 are supportod in corre6pondin9 openin~s in ths moving part 21 Th- spr1ngs Of the Jegmsnts 30 ars lnserted by one snd securely into tho segment 22 whorcas their other ends rest ro~roactivel~
on th- surface of th- mOvablQ part 21 Tho springs of the segment 20 aro used to move the segments 22 bach into their starting position~ when no force i~ sxerted by tho door key Beneath tho moving part 21 there ia ~ slide 31 with its pin 32 and 1ts SPrin~ ~ Thls 6mall sub-assembly mado up of three E~3~ 11 16: 5'1 0~!3 P10 2~ 2~

parts is the same as ln the loch, where 1t be~rs the referenc-num~er 18, and it carri~s out the same ta~k, i.e., lt rotates the round c~3~ 8 through an an~le of 4S de~rees. Part numb~r 35 is not à component o~ tho aegmented insort or of the loc~, but i9 a forei~n object that has b-on ~orcod 1nto tho ~egmented insert in order to damage the lock or to force it. ~igur~ 17 illustr~tes the proceduro by moans of whicn such a foreign object 35 can be removed from the insert w1th the help of the ~ey 34. Figure 16 shows whAt happens to the 1nsert if an lncorroct key or a similar ob~oct is forced into the lock insert. Because of the excossive forco exertod by the koy, tho ond spr1ng 23 bonds upwards th-reby pormitting tho key to movo bonoath it, although the moving part 21 remcins in place. The incorroct koy or tho foro1gn object can b- r-moved ~rom th- insert or can be pushed out on tho othor s1de, ln wh1ch Case the insert as woll as the remainder of tho loc~ will remaln und~magod. figure 15 ~howo the oxact posltlon of th- koy 3~ and the end spring 23, relative to oach other.
Flguro 14 show~ a situatlon that arise~ if the wron~ key 18 used, but w1tho~t suff'lcient force to damage the lock. When this i~
done, the correct ~egm nt codo i~ not asaembl~d and the moving part together with its ~egmonts remain 1n p~ace. Each time a koy 15 ln~erted lnto th~ insort, rogardless of whether it is tho correct key or an incorreCt one, the sprlngs of the segment 30 will forco lt out of th- insert when a force is no ~ongor ap~lied. Figure 12 shows the situation when t~e code naa be~n assemblod or if oach ~lot 2~ facos tho ssgments 22 and is 03-09-91 16:5~3 023 Pll 2 0 ~

ready to continue to move onto the partition 27 and complete th0 workin~ tr~vel `'H`' o~ the lnsert, ~ i9 ~hown tn fi~uro 13.
Everything stats~ ln this description of the solutlon of the t~chnical problem ha~ bocn confirmed ~n practice ~y th~ numerous worklng model~ of the loc~ thAt h~ve been made.

Claims (5)

1. A lock with a segmented insert, characterized in that it is accommodated within a housing (2) with a cover (3) above the middle of the shaft (4) that is of square cross-section, on one end of which there is the bolt (6) and on the opposite end of which there is the cross piece (10), the spring (5) being installed on the middle, one end of said spring resting against the bolt (6) and the other end against the bearing (9) in which on the other side the cage (8) is supported and rotates, the other end of this being supported in the bearing (12).

2. A lock with a segmented insert as described in Claim 1, characterized in that the segmented insert (1) is secured by the screws (20) to the housing (2) over the upper side of the shaft (4) precisely above the round cage (8), in contrast to which, in the same plane, beneath the round cage (8), there is a moving part that is made up of the connector element to the knob (15), the guide (16) the spring (17), and the slide (18).

3. A lock With a segmented insert as defined in Claim 1 and Claim 2, characterized in that the moving part (21) is located in the housing of the segmented insert 21 with the cover 25, the segments (22) with their springs (30) being arranged on a pin (29) in the housing, and where the springs (24) that return the moving part (21) into the starting position are accommodated in specific openings.

4, A lock with a segmented insert as defined in Claim 1, Claim 2, and Claim 3, characterized in that there is a slot (28) in the segment (22), this slot moving onto the partition (27) when the code has been assembled, by the action of the key (34), which can be configured so as to be one-sided, as shown in Figure 9b, or two-sided, as shown in Figure 9a, whereupon the moving part (21) completes its working travel ("H").

5. A lock with a segmented insert as defined in Claim 1, Claim 2, Claim 3, and Claim 4, characterized in that end springs (23) are accommodated in specific places in the moving part (21), whereas beneath the moving part (21) there is a slide (31) with its pin (32) and spring (33).