US3473356A - Barrel-operated lock - Google Patents

Barrel-operated lock Download PDF

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Publication number
US3473356A
US3473356A US649721A US3473356DA US3473356A US 3473356 A US3473356 A US 3473356A US 649721 A US649721 A US 649721A US 3473356D A US3473356D A US 3473356DA US 3473356 A US3473356 A US 3473356A
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United States
Prior art keywords
barrel
lock
block
key
blocks
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US649721A
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English (en)
Inventor
Armas Kalervo Niilola
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Individual
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Individual
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0017—Locks with sliding bolt without provision for latching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7576—Sliding and rotary plug
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7655—Cylinder attaching or mounting means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7667—Operating elements, parts and adjuncts
    • Y10T70/7706—Operating connections
    • Y10T70/7712—Rollbacks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7915—Tampering prevention or attack defeating
    • Y10T70/7921—Armoring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7915—Tampering prevention or attack defeating
    • Y10T70/7932—Anti-pick
    • Y10T70/7944—Guard tumbler

Definitions

  • This invention relates to a barrel-operated lock com prising a lock body, a block barrel located in it, a blocking rail fitted into the block barrel groove and in the locking position also reaching into the lock body groove, as well as some disc type blocks in the block barrel, which blocks are turnable by key into an opening position, allowing the peripheral notches of the block discs to align with the blocking rail in the block barrel slit, thus permitting this rail to move away from the block barrel groove and into the groove formed by the peripheral notches.
  • blocks and spacers are enclosed between the bottom and the cover of the block barrel in such a way that a block barrel filled and closed accordingly can be handled and moved without producing any disorder in the block barrel assembly combination.
  • the invention is directed to a barrel-operated lock comprising a lock barrel housing into which the barrel and its locking combination are fixed.
  • the plugs plug type blocks
  • the plugs are set in a position releasing the lock between the barrel and the lock body, when the key is inserted in the key hole.
  • the lock barrel can be turned in both directions as many times as is required. Further, this means that the latch cam can be pushed several times to make the latch protrude sufficiently from the lock. At the moment this projection needs to be about 25 mm.
  • the intention of the invention is to make it possible to produce a barrel-operated lock with the above-mentioned advantage among other features.
  • the socalled block disc system is better in this respect because the disc type blocks can be put in an opening position by turning the key, thus simultaneously putting the peripheral grooves of the blocking discs in alignment with the block rail in the slit on the blocking barrel wall and also with the groove on the lock body, which means that the rail enters the groove formed by the peripheral notches, which releases the block barrel from the lock body.
  • the blocking can be depressed by continuing to turn the key, when the slanting edge of the lock housing groove forces the blocking rail out of the lock housing groove.
  • the intention of the invention is to make it possible to manufacture a lock which does not suifer from the disadvantages of disc barrel-operated locks, but still having the advantages of this system.
  • the intention is to make it possible to manufacture a block barrel-operated lock with the advantages of both systems but not their disadvantages.
  • a barrel-operated lock conforming with the invention 3,473,356 Patented Oct. 21, 1969 contains a number of plate-shaped blocks arranged so as to be turned inside the barrel by the key until the opening position is reached and the peripheral notches fit the rail in the barrel slit and are also engaged by the blocking rail end in the lock body groove. This forces the blocking rail out of its locking position, i.e. out of the groove in the lock housing, i.e. into an opening position in which the barrel can be turned both clockwise and counterclockwise without interference from the rail, for instance to establish a latch movement with regard to the lock body effected by the so-called latch cam, which is turned when the barrel is rotated.
  • the characteristics of a lock conforming with the invention include the arrangement wherein the blocks and the eventual spacers are enclosed in the block barrel housing between the bottom and cover in a manner which makes it possible to handle and freely move the block barrel filled and closed as described above, without causing any disorder in the combination established in the block barrel.
  • the blocks and the block barrel form a combined production and spare part item, which can be manufactured separately for insertion in various locks, especially in order to afford the advantages mentioned hereinabove.
  • This assembly item suited for mass production is also supplemented by the new feature of also having the blocking rail included in the barrel assembly.
  • the block barrel is closed at both ends, it is desirable to close it externally by means of a cover made of very hard quenched steel in order to provide protection against drilling.
  • FIG. 1 is an end view of the face of a lock barrel inclusive of the latch releasing and advancing cams;
  • FIG. 2 is a longitudinal section taken along the center line of the lock barrel
  • FIG. 3 is a vertical cross section of the lock inserted in a door
  • FIG. 4 is a cross-section taken along line IVIV in FIG. 3;
  • FIG. 5 is a cross-section taken along line VV in FIG. 3;
  • FIGS. 6 and 7 correspond to FIGS. 1 and 2 with the blocks in an unlocked position
  • FIG. 8 corresponds to FIG. 3 but with the block housing in its depressed position
  • FIGS. 9-11 are sections taken along lines 1XIX, XX and XIXI respectively, in FIG. 8.
  • FIGURE 3 shows a vertical cross-section of a doorinserted blocking plate barrel type lock, which can be opened and closed by key from the right side, and closed and opened with a means of the handle on its left side.
  • the door 1 and the casing plates 2 on both sides thereof are indicated in broken lines.
  • the profile of the lock body 3 is somewhat longer than the width of the casing.
  • a cross-section of the lock body 3 is seen in FIG. 5.
  • the lock body 3 has a cross-wise threaded hole 4 in which a screw is inserted to attach the lock body 3 to the door 1.
  • the attachment screw is not shown in the drawing.
  • FIG. 2 shows the upper right side part of the lock body 3.
  • the cylindrical part 5 is the lock housing and in the periphery thereof are axial grooves 6 for a blocking rail 7.
  • Inside the lock housing is a cylindrical block housing 8 containing blocks 9 and spacers 10 therebetween.
  • the assembly consisting of the blocks and spacers 3 is held in the axial direction in the block housing by the bottom and face of the block housing.
  • one end of the blocking rail 7 is in groove 6 of the lock housing 5, and the other end in groove 12 on the block housing, which means that the block housing 8 cannot move with respect to the lock housing 5.
  • the blocks 9 can be turned, .by means of the key, into the release position, and the notches on the periphery of the blocks take up positions on block rail 7, which allows the rail to be pressed into the grooves formed by the notches. This situation is shown in FIG. 7.
  • the blocking rail of locks conforming with the invention is opened by pushing the key barrel in axially, a space 13 has been provided between the rear side of the lock housing and the block housing bottom.
  • the blocking rail has, because of its slanting shape, entered the groove formed by the peripheral notches on the blocks, and the block housing is thus released to rotate. This effect is not produced if the wrong key is used, because in a way familiar from the Abloy system, one of the blocking discs is not correctly aligned, i.e. the indentation of one of the block discs is not at the blocking rail.
  • the block housing When the block housing is in its innermost position, it can be turned in both directions as many times as is required, which cannot be done with an Abloy type of lock.
  • the oblong plug 14 protruding from the rear end of the block housing penetrates into the oblong hole on the spring-loaded latch cam 15 when the block housing is turned, and the latch cam then pushes the latch with each turn, which means that an endless advancing, i.e. locking and return movement can be produced.
  • FIGURES 3 and 8 show that the lock body protrudes from the door.
  • the profile shape of the lock body corresponds to the well-known profile of the Yale lock body, which means that locks corresponding to the invention can be made using a Yale body. If it is considered that the use of a readily available lock housing is not attractive enough, there is nothing preventing the application of the construction concerned to other suitable shaped lock housings.
  • a disadvantage of available lock body profiles is that they can easily be destroyed by drilling as all of them are made of brass.
  • the disadvantage mentioned has been coped with in locks conforming with the invention by applying a cap 16 of steel quenched to glass hardness to cover the lock barrel and its face.
  • a circular slit is provided for this purpose, in the cap skirt between the block barrel and the cylindrical lock body excavation shown in FIG. 9.
  • the protection cap 16 effectively prevents any tampering with the lock.
  • the effectiveness has been improved further by placing a glass-hard quenched plate 17 over the blocks 9.
  • the protection cap 16 is kept in place by forming a ring shaped groove 18 on its skirt, which (FIGS. 3 and 8) guides the cup head 19 against the guide by the attachment screw 20. As shown in FIGS. 3 and 8, the screw 20 cannot be tampered with as long as the lock is fitted in the door 1. The cup head 19 is also hidden and it grips the cap 16 sufficiently strongly to prevent the protection cap 16 from being forcibly removed.
  • Block packs 9 and spacers 10 form a kind of packing held between the bottom and the cover of the block housing. Replacement of the locking elements can thus be effected quickly and easily. Block packs can be kept in store as spares, which has not been possible earlier.
  • the semi-circular shape of the key-hole used in some models is very well illustrated in FIG. 1.
  • the crosssectional area of the key is of a corresponding size.
  • the key When the key is inserted in the keyhole, the key can be turned in a clock-wise direction through an angle of about when the blocks are turned into their opening positions. Subsequently, the key can be pressed in thus forcing the complete block barrel inwards.
  • the length of this transition is arbitrary. In a lock conforming with the Finnish Patent No. 33,836, the transition is controversely completely limited, and must not exceed the thickness of the block disc. For comparison purposes it must be verified that in a lock conforming with the invention, a transition of 4 mm. has been considered favorable in practice. A transition as large as this cannot in practice be produced with a lock conforming with the Finnish Patent No. 33,836 due to the fact that the transition is less than a quarter the value mentioned, the block disc thickness being 1 mm.
  • the block barrel can only be pressed in when the blocks are in the opening position, which in practice means that the correct key must be in the key hole, and turned 90 clock-wise. From this position the opening position of the latch rail 7 is produced by pressing in the block barrel. In this position, plug 21 has moved to the ring-shaped enlargement (FIG. 8) at the rear end of the lock housing. The plug 21 is springloaded and a comparison of FIGURES 5 and 11 shows the function of plug 21. When the block barrel is in its outer position, FIG. 3, the plug 21 is in an axial ring groove, FIG. 11. This arrangement makes it possible for the axial transition movement of the block barrel to be accurately performed at a distinct angle. This means that the task to be carried out by the block barrel, for instance the latch movement, is carried out in a definitive manner. Furthermore, the procedures can be made more effective by installing an audible or palpible signal which is transmitted when the key is at the correct angle.
  • the required setting can be made, for instance the turning of the spring-loaded latch cam 15 which moves the latch.
  • the latch protrudes about 12 mm. after the first turn, and again 12. mm. after the second one. Two turns to the rear will return the latch to its inside position.
  • the press button used in the drawings is shown as a round knob 23 which engages a separate latch cam 24, which in turn operates the lock latch.
  • the latch earns 15 and 24 are mutually spring-loaded by the spring mechanism 30 carried in latch cam 24 as shown in FIG. 3.
  • the knob 23 can be locked in position by means of the internal knob 25, hence providing a protection on the inner side of the door, for instance, against attempts to open it through the letter box.
  • Blocks and spacers conforming with the invention and block barrels supplemented by blocking rails can also be used in other lock types. It is essential that the block barrels can be handled freely both inside and outside the lock without disarranging the packing. This also applies to the axial movement inside the lock resulting in the locking of the block rail in its opening position in which it can be arbitrarily turned until at a certain angle the block barrel is drawn out into its surface position.
  • a barrel-operated lock comprising a lock body, a block barrel reciprocally supported in said body for axial displacement between normal and depressed positions, said barrel being rotatable in said body for movement between unlocking and locking positions, said lock body and block barrel having respective grooves therein, a blocking rail disposed in part in said grooves in the block barrel and in the lock body to lock the same against relative rotation with said barrel in normal position and in locking position in the body, a plurality of disc blocks in said block body, said disc blocks having peripheral notches and being turnable by a key to align said notches in a position for receiving the blocking rail, said blocking rail having means engageable with said lock body to be urged thereby into the aligned notches upon axial displacement of the block barrel to said depressed position and thereby be removed from the groove in the lock body to enable the barrel to be rotated to unlocking position, said block barrel having a bottom and a removable cover for retaining and holding the disc blocks in the barrel between the bottom and cover, as an assembly which can be handled and moved without disturbing the disc
  • said blocking rail means includes a protruding portion having at least one axially slanting surface, which contacts the lock body as the block barrel is moved to said depressed position whereby the blocking rail is urged into the aligned notches in the disc blocks.
  • a barrel-operated lock according to claim 5 comprising a cylindrical outer sheathing in said lock body and encircling said barrel.
  • a barrel-operated lock according to claim 7 wherein said barrel has a radial groove therein, and a separate spring-loading plug in said groove which allows axial movement of the block barrel with respect to the lock body only when the disc blocks have been turned to align the notches therein.
  • a barrel-operated lock according to claim 6 comprising a sleeve and a bottom plate of hardened steel covering the block barrel.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Closures For Containers (AREA)
US649721A 1967-01-09 1967-06-28 Barrel-operated lock Expired - Lifetime US3473356A (en)

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FI3567 1967-01-09

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3695073A (en) * 1970-03-30 1972-10-03 Burnerd Clark Prescott Disc and sidebar cylinder lock
US3699788A (en) * 1971-02-12 1972-10-24 Emhart Corp Latch construction including assembly, anti-violation and dead bolt features
US3855826A (en) * 1973-05-02 1974-12-24 Hori Lock Kogyo Kk Padlock
US4183235A (en) * 1977-03-14 1980-01-15 Viro Innocenti S.P.A. Protected padlock
US4616492A (en) * 1984-09-07 1986-10-14 Barfield J David Key combination lock
US4697444A (en) * 1985-12-04 1987-10-06 Maffey Constant O Security device for trailer
US4902165A (en) * 1988-02-19 1990-02-20 Embree Lewis A Locking valve cover
US5087090A (en) * 1991-05-17 1992-02-11 International Security Products, Inc. Combination lockout/holdback apparatus
US20080168813A1 (en) * 2007-01-13 2008-07-17 Martin Smith Lock cylinder
US20130174619A1 (en) * 2012-01-10 2013-07-11 Adams Rite Manufacturing Co. Lock assembly with an interchangeable lock core
US20210148137A1 (en) * 2011-07-01 2021-05-20 Dewalch Technologies, Inc. Disk tumbler lock and an improved key and restrictive keyway

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE16123E (en) * 1925-07-21 Lock protector
US1550435A (en) * 1922-02-13 1925-08-18 Ganz William Lock
US1883326A (en) * 1931-10-07 1932-10-18 Waino A Thor Cylinder lock
US2023208A (en) * 1934-02-26 1935-12-03 Automatic Musical Instr Co Cylinder lock
US2097188A (en) * 1935-11-18 1937-10-26 Briggs & Stratton Corp Lock
FR947652A (fr) * 1947-05-20 1949-07-08 Decayeux Freres Serrure à pompe et ses applications
US2690070A (en) * 1951-05-26 1954-09-28 Yale & Towne Mfg Co Rotary tumbler cylinder lock
US2729091A (en) * 1951-02-19 1956-01-03 Ingersoll Ltd Key operated lock mechanism
US3287944A (en) * 1964-03-18 1966-11-29 Gen Motors Corp Locking means
US3345838A (en) * 1965-06-28 1967-10-10 Russell Double sliding door lock

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE16123E (en) * 1925-07-21 Lock protector
US1550435A (en) * 1922-02-13 1925-08-18 Ganz William Lock
US1883326A (en) * 1931-10-07 1932-10-18 Waino A Thor Cylinder lock
US2023208A (en) * 1934-02-26 1935-12-03 Automatic Musical Instr Co Cylinder lock
US2097188A (en) * 1935-11-18 1937-10-26 Briggs & Stratton Corp Lock
FR947652A (fr) * 1947-05-20 1949-07-08 Decayeux Freres Serrure à pompe et ses applications
US2729091A (en) * 1951-02-19 1956-01-03 Ingersoll Ltd Key operated lock mechanism
US2690070A (en) * 1951-05-26 1954-09-28 Yale & Towne Mfg Co Rotary tumbler cylinder lock
US3287944A (en) * 1964-03-18 1966-11-29 Gen Motors Corp Locking means
US3345838A (en) * 1965-06-28 1967-10-10 Russell Double sliding door lock

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3695073A (en) * 1970-03-30 1972-10-03 Burnerd Clark Prescott Disc and sidebar cylinder lock
US3699788A (en) * 1971-02-12 1972-10-24 Emhart Corp Latch construction including assembly, anti-violation and dead bolt features
US3855826A (en) * 1973-05-02 1974-12-24 Hori Lock Kogyo Kk Padlock
US4183235A (en) * 1977-03-14 1980-01-15 Viro Innocenti S.P.A. Protected padlock
US4616492A (en) * 1984-09-07 1986-10-14 Barfield J David Key combination lock
US4697444A (en) * 1985-12-04 1987-10-06 Maffey Constant O Security device for trailer
US4902165A (en) * 1988-02-19 1990-02-20 Embree Lewis A Locking valve cover
US5087090A (en) * 1991-05-17 1992-02-11 International Security Products, Inc. Combination lockout/holdback apparatus
US20080168813A1 (en) * 2007-01-13 2008-07-17 Martin Smith Lock cylinder
US7946144B2 (en) * 2007-01-13 2011-05-24 Archibald Kenrick & Sons Limited Lock cylinder
US20210148137A1 (en) * 2011-07-01 2021-05-20 Dewalch Technologies, Inc. Disk tumbler lock and an improved key and restrictive keyway
US20230304322A1 (en) * 2011-07-01 2023-09-28 Dewalch Technologies, Inc. Disk Tumbler Lock and an Improved Key and Restrictive Keyway
US20130174619A1 (en) * 2012-01-10 2013-07-11 Adams Rite Manufacturing Co. Lock assembly with an interchangeable lock core
US9476226B2 (en) * 2012-01-10 2016-10-25 Hanchett Entry Systems, Inc. Lock assembly with an interchangeable lock core
US10100552B2 (en) 2012-01-10 2018-10-16 Hanchett Entry Systems, Inc. Lock assembly with an interchangeable lock core

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DE1678057A1 (de) 1970-05-21

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