US3898822A - Mortise lock - Google Patents

Mortise lock Download PDF

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Publication number
US3898822A
US3898822A US386739A US38673973A US3898822A US 3898822 A US3898822 A US 3898822A US 386739 A US386739 A US 386739A US 38673973 A US38673973 A US 38673973A US 3898822 A US3898822 A US 3898822A
Authority
US
United States
Prior art keywords
latch bolt
housing
lock
cutout
catch
Prior art date
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
Application number
US386739A
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English (en)
Inventor
Wolfgang Schalm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schueco Heinz Schuermann GmbH and Co
Heinz Schuermann and Co
Original Assignee
Heinz Schuermann and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heinz Schuermann and Co filed Critical Heinz Schuermann and Co
Application granted granted Critical
Publication of US3898822A publication Critical patent/US3898822A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B55/00—Locks in which a sliding latch is used also as a locking bolt
    • E05B55/06—Locks in which a sliding latch is used also as a locking bolt the handle being disconnected
    • 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
    • Y10T70/50—Special application
    • Y10T70/5093—For closures
    • Y10T70/5155—Door
    • Y10T70/5199—Swinging door
    • Y10T70/5372—Locking latch bolts, biased
    • Y10T70/5381—Projectable beyond normal biased position
    • 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
    • Y10T70/80—Parts, attachments, accessories and adjuncts
    • Y10T70/8432—For key-operated mechanism
    • Y10T70/8459—Housings
    • Y10T70/8541—Mounting arrangements
    • 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
    • Y10T70/80—Parts, attachments, accessories and adjuncts
    • Y10T70/8865—Reversible structures

Definitions

  • a latch bolt is movable in a housing in a first direction into and out of the housing between a retracted an intermediate and an advanced position.
  • a catch is mounted in the housing for shifting movement between a normal rest position and a shifted position in a second direction transverse to the first direction.
  • the catch has a cutout provided with two parts which are spaced in the first direction and abutment which separates the two parts and extends partly across the cutout in the second direction.
  • a connector is provided on the latch bolt movable therewith and has a pin which extends into the cutout, and an engaging portion.
  • a lock cylinder is turnably mounted in the housing and can turn between two positions in one of which it displaces the catch to the shifted position wherein the pin may move past the abutment from one cutout part to the other.
  • An arrangement for moving the latch bolt between the several positions includes a handle-operated member operative to engage the engaging portion and displace the latch bolt to the retracted position, but only when the latch bolt is in its intermediate position or between these two positions.
  • the present invention relates generally to a lock, and more particularly to a mortise lock.
  • Mortise locks are already well known and need not be described in detail here as to their purpose and operation.
  • the conventional mortise locks usually require relatively large amounts of space for installation and in many instances are not as reliable against the possibility of tampering, as is desirable.
  • Another object of the invention is to provide a mortise lock which has small dimensions and, therefore, relatively small space requirements.
  • a mortise lock which, briefly stated, comprises a housing, and a latch bolt movable in a first direction out of and into the housing between an advanced and a retracted position.
  • a catch is mounted in the housing for shifting movement between a normal rest and a shifted position, and a second direction transverse to the first direction.
  • the catch has a cutout provided with two parts spaced in the first direction and an abutment which separates the two parts and extends partly across the cutout in the second direction.
  • a connector is provided on the latch bolt, being movable with the same and having a pin extending into the cutout.
  • the connector has an engaging portion.
  • a lock cylinder is mounted in the housing for turning movement between two positions in one of which it displaces the catch to the shifted position.
  • a handle-operated member is operative to engage the engaging portion and to thereby displace the latch bolt from its advanced to its retracted position, but only when the catch is in the shifted position in which the pin can slide past the abutment from one into the other of the parts of the cutout.
  • FIG. I is a perspective view of the novel mortise lock in one embodiment thereof, including a portion of a frame into which the lock is to be installed;
  • FIG. 2 is a perspective view of a component for use in mounting the lock
  • FIG. 3 is a view of FIG. 1, as seen in the direction of the arrow III in that Figure, illustrating a fragment of a further embodiment of the invention
  • FIG. 4 is a top-plan of FIG. 3;
  • FIG. 5 is a side view of the embodiment in FIG. I, with one side wall of the housing removed for clarity;
  • FIG. 6 is a section taken on line VI-VI of FIG. 5;
  • FIG. 7 shows the embodiment of FIGS. 1 and 5, in a view similar to FIG. 5 but with the latch bolt in retracted position;
  • FIG. 8 is a view similar to FIG. 7, but showing the latch bolt in advanced and latched position
  • FIG. 9 is a view similar to FIG. 8, but showing only a fragment of the lock, illustrating the latch bolt in an intermediate position
  • FIG. 10 is a perspective view showing several components of the illustrated embodiment of FIGS. 1 and 5-9, in exploded condition.
  • FIGS. 1, 2 and 5l0 identifies a frame or door profile provided with an opening 2 into which the mortise lock is to be inserted.
  • insert members 3 which are prevented against rotation and which may, for instance, be made of synthetic plastic material.
  • insert member 2 shows one such insert member which serves to mount the mortise lock, and it will be seen that these insert members 3 are provided with tapped bores into which the mounting screws are inserted which are extended through bores 5 in the portion 6 of the housing of the mortise lock 7.
  • the insert members 3 have the stepped configuration shown in FIG. 2, the step being identified with reference numeral 8 and being present on three sides as shown, with the height or thickness of the step corresponding to the thickness of the wall of the profile I.
  • a supporting portion 9 engages the outer surface of the profile 1 after the respective member 3 has been installed.
  • FIG. 3 and 4 show a different manner of mounting the lock
  • the members 3 it is possible to provide at the upper and lower ends of the portion 6 of the lock eccentric members 10 which can be turned from the exterior and which engage the upper and lower inner sides of the opening when they are so turned, thereby mounting the lock in the opening of the frame profile 1.
  • the mounting arrangements of FIGS. 2 on the one hand and 3 and 4 on the other hand can be combined if desired, for instance at the upper end one of the members 3 could be provided, and at the lower end one of the eccentric members 10, or vice versa.
  • the housing portion 6 can be of one piece with four wall portions of the lock housing 11, and that the housing with the portion 6 can be configurated as a pressure casting.
  • the remaining wall portion 12, which permits access to the interior of the housing, is configurated as a separable plate, for instance a metallic plate which can be connected with the remainder of the housing 11 by means of screws or the like.
  • the latch bolt 13 of the novel mortise lock acts at the same time as the dead lock bolt and is provided with a connector 14 which surrounds it and extends upwardly and downwardly beyond the latch bolt 13.
  • the latter is of cylindrical configuration and is turnably accommodated in the connector 14.
  • a turning of the latch bolt 13 is prevented by a spring-loaded pin 15 which engages into a lower arcuate recess 16 of the latch bolt.
  • the pin 15 can, however, be pushed into the connector 14 counter to the action of the spring which biases it, in which case the latch bolt 13 can be turned about its longitudinal axis.
  • the latch bolt is provided with two recesses which are offset through 180 so that by so turning it, the latch bolt can be used either for a right-hand or a left-hand lock, simply by turning it.
  • the pin 15 is disengaged by inserting a rod or similar member through an opening 17 and exerting pressure upon the pin 15 counter to the spring biasing the same.
  • the lower projecting portion 18 of the connector 14 is provided with a projection 19, which can also be considered a pin, and which extends into a cutout 20 of a catch 21.
  • the catch has a downwardly extending arm 22 which is provided with an opening 23 into which there extends an abutment 24 mounted on the housing of the lock.
  • a restoring spring 26 is located between and bears upon the abutment 24 and the lower delimiting surface of the opening 23.
  • a profiled lock cylinder 27 is arranged below the catch and has a cam 28 which, when the lock cylinder 27 is turned, engages the portion 29 of the catch 21 to displace the latter counter to the force of the restoring spring 26 in the direction towards the latch bolt 13.
  • An abutment 30 extends into the cutout 20 to separate the same into two parts, namely an arresting part 31 and a moving part 32; the abutment 30 extends part way across the cutout 20, as shown.
  • the latch bolt 13 acts as a dead lock bolt. It is also shown in FIG. 8 that the extent to which the latch bolt extends into the cooperating frame portion is very significant, and may, for instance, be 25 mm or even more. Because of this significant extent to which the latch bolt extends into the associated frame portion, it is to all intents and purposes impossible to break open the lock by deforming the material of the frame portion sufficiently to cause disengagement of the latch bolt.
  • the cylinder 27 When the latch bolt 13 is to be released, the cylinder 27 is turned from the position of FIG. 8 in clockwise direction, and its cam 28 engages the portion 29 on the one hand, and the part 34 of a T-shaped member 35 on the other hand.
  • the member 35 is slidably mounted in the lower portion 18 of the connector 14, for movement within a limited range of displacement.
  • the forward end of the member 35 is provided with an abutment 36 whereas its rearward end has the portion 35 which constitutes another abutment which engages a spring 37 which is located in a recess of the portion 18.
  • a claw 38 which is actuated by the non-illustrated door handle, can engage with the upper portion 39 of the connector 14, to displace the latch bolt to a position, for instance the end position shown in FIG. 7, in which the door can be opened.
  • the latch bolt 13 operates as a normal latch bolt and does not act as a dead lock bolt.
  • the claw 38 is mounted on the member 40 for tumable movement and turns in counterclockwise direction when the handle is turned in clockwise direction.
  • a restoring spring 41 is associated with the claw 38, and in the illustrated embodiment the spring 41 is constructed as a torsion spring. The reversal of direction between the movement of the handle on the one hand and the movement of the claw on the other hand is obtained by a linkage arrangement.
  • the member 40 is provided with a projection 42 which is abutted by a spring 43 which is mounted in the housing.
  • a cam 44 of the member 40 cooperates with a cam 45 of a member 46 which latter is tumable about an axis 47 which extends parallel to the axis 48 of the member 40.
  • the claw 38 is provided with a projection 47 which cooperates with the member 46. The turning movement of the member 46 is counter to the turning movement of the door handle, so that as a result the movement of the claw 38 is also counter to the movement of the door handle.
  • This linkage arrangement controlled by the various cooperating cams and projections, provides for the desired direction reversal with the smallest possible space requirement so that the configuration and overall dimension of the lock can be small, and consequently the space requirement for installing the lock can be maintained much smaller than was heretofore possible.
  • the housing With a guide track 49 into which a projection 50 of the connector 14 extends to be guided thereby.
  • the catch 21 extends over the entire width of the housing and is in slidable engagement with the opposite housing walls.
  • a mortise lock comprising a housing; a latch bolt movable in a first direction out of and into said housing between an advanced dead-lock position, an intermediate latching position and a retracted position; a catch slidably mounted in said housing and extending over the entire width thereof into slidable guided, engagement with the width-defining housing walls for shifting movement between a normal rest and a shifted position in a second direction transverse to said first direction and having a cutout provided with a dead-lock part and a latching part, the two parts being spaced in said first direction, and an abutment separating said two parts and extending partly across said cutout in said second direction; a connector on said latch bolt, movable therewith and having a pin extending into said cutout, and an engaging portion; a biasing spring biasing said catch to said rest position; a lock cylinder mounted in said housing for turning movement between two positions in one of which it displaces said catch to said shifted position wherein said pin may move past said abutment from one
  • a mortise lock comprising a housing; a latch bolt movable in a first direction out of and into said housing between an advanced dead-lock position, an intermediate latching position and a retracted position; a catch mounted in said housing for shifting movement between a normal rest and a shifted position in a second direction transverse to said first direction and having a cutout provided with a deadlock part and a latching part, the two parts being spaced in said first direction, and an abutment separating said two parts and extending partly across said cutout in said second direction; a connector on said latch bolt, movable therewith and having a pin extending into said cutout, an engaging portion and another portion, and a T-shaped member which is journalled in said other portion for limited sliding displacement against a biasing member; a lock cylinder mounted in said housing for turning movement between two positions in one of which it displaces said catch to said shifted position wherein said pin may move past said abutment from one cutout part to the other; and means for moving said latch bolt
  • a mortise lock comprising a housing; a latch bolt movable in a first direction out of and into said housing between an advanced dead-lock position, an intermediate latching position and a retracted position; a catch mounted in said housing for shifting movement between a normal rest and a shifted position in a second direction transverse to said first direction and having a cutout provided with a dead-lock part and a latching part, the two parts being spaced in said first direction, and an abutment separating said two parts and extending partly across said cutout in said second direction; a connector on said latch bolt, movable therewith and having a pin extending into said cutout, and an engaging portion; a lock cylinder mounted in said housing for turning movement between two positions in one of which it displaces said catch to said shifted position wherein said pin may move past said abutment from one cutout part to the other; and means for moving said latch bolt between the several positions and including a handle-operated member operative to engage said engaging portion and displace said latch bolt to
  • a mortise lock comprising a housing; a latch bolt movable in a first direction out of and into said housing between an advanced dead-lock position, an intermediate latching position and a retracted position; a catch mounted in said housing for shifting movement between a normal rest and a shifted position in a second direction transverse to said first direction and having a cutout provided with a dead-lock part and a latching part, the two parts being spaced in said first direction, an abutment separating said two parts and extending partly across said cutout in said second direction; a connector on said latch bolt, movable therewith and having a pin extending into said cutout, and an engaging portion, said latch bolt being substantially cyiindrical and being turnably joumalled in said connec .or and having an arcuate recess into which a spring-biased pin extends for controlling the turning movement of said latch bolt; a lock cylinder mounted in said housing for turning movement between two positions in one of which it displaces said catch to
  • said latch bolt having an additional arcuate recess which is offset through relative to the first-mentioned arcuate recess; and wherein said pin is disengageable from one said arcuate recess and engageable with the other.
  • a mortise lock comprising a housing; a latch bolt movabie in a first direction out of and into said housing between an advanced dead-lock position, an intermediate latching position and a retracted position; a catch mounted in said housing for shifting movement between a normal rest and a shifted position in a second direction transverse to said first direction and having a cutout provided with a dead-lock part and a latching part, the two parts being spaced in said first direction, and an abutment separating said two parts and extending partly across said cutout in said second direction; a connector on said latch bolt, movable therewith and having a pin extending into said cutout, and an engaging portion; a lock cylinder mounted in said housing for turning movement between two positions in one of which it displaces said catch to said shifted position wherein said pin may move past said abutment from one cutout part to the other; means for moving said latch bolt between the several positions and including a handle-operated member operative to engage said engaging portion and displace said latch bolt to
  • a mortise lock comprising a housing; a latch bolt movable in afirst direction out of and into said housing between an advanced dead-lock position, an intermediate latching position and a retracted position; a catch mounted in said housing for shifting movement between a normal rest and a shifted position in a second direction transverse to said first direction and having a cutout provided with a dead-lock part and a latching part, the two parts being spaced in said first direction, and an abutment separating said two parts and extending partly across said cutout in said second direction; a connector on said latch bolt, movable therewith and having a pin extending into said cutout, and an engaging portion; a lock cylinder mounted in said housing for turning movement between two positions in one of which it displaces said catch to said shifted position wherein said pin may move past said abutment from one cutout part to the other; means for moving said latch bolt between the several positions and including a handle-operated member operative to engage said engaging portion and displace said latch bolt to said

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Lock And Its Accessories (AREA)
US386739A 1972-08-10 1973-08-08 Mortise lock Expired - Lifetime US3898822A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2239390A DE2239390A1 (de) 1972-08-10 1972-08-10 Einsteckschloss fuer tueren

Publications (1)

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US3898822A true US3898822A (en) 1975-08-12

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ID=5853244

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Application Number Title Priority Date Filing Date
US386739A Expired - Lifetime US3898822A (en) 1972-08-10 1973-08-08 Mortise lock

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US (1) US3898822A (fr)
AT (1) AT323012B (fr)
DE (1) DE2239390A1 (fr)
FR (1) FR2195993A5 (fr)
NL (1) NL7310758A (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2839636A1 (de) * 1978-09-12 1980-03-20 Schuermann Hugo Fallenriegelschloss
US5678870A (en) * 1996-01-31 1997-10-21 Sargent Manufacturing Company Reversible mortise lock
US5694798A (en) * 1995-12-22 1997-12-09 Sargent Manufacturing Company Motorized lock actuators
US5715715A (en) * 1996-02-13 1998-02-10 Sargent Manufacturing Company Lock assembly with motorized power screw
US5890753A (en) * 1992-10-30 1999-04-06 Fuller; Mark Weston Lock mechanism
US5992195A (en) * 1999-01-15 1999-11-30 Sargent Manufacturing Corporation Lever handle controller for mortise lock
US6032985A (en) * 1998-05-22 2000-03-07 Harrow Products, Inc. Latch assembly
US6178794B1 (en) 1999-01-15 2001-01-30 Sargent Manufacturing Company Lever handle controller
US6393878B1 (en) * 2000-05-22 2002-05-28 Corbin Russwin, Inc. Mortise lock
US6748778B1 (en) * 2003-02-14 2004-06-15 Hon Technology Inc. Braced front loading lock system for office furniture
US20070125023A1 (en) * 2005-04-18 2007-06-07 Gill Michael J Mounting clip
US20080243566A1 (en) * 2007-03-27 2008-10-02 Godwin Bryan W System, Method And Apparatus For Identifying And Correcting Data Integrity Problems Associated With Remotely Located Equipment
US20130340492A1 (en) * 2012-06-25 2013-12-26 Dorma Gmbh + Co. Kg Locking Device And Leaves Outfitted Therewith And Leaf Installation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL59456A0 (en) * 1980-02-24 1980-05-30 Rochman Zvi Henri Safety lock with locking latch for straightening warped doors

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US17412A (en) * 1857-06-02 Door-lock
US720455A (en) * 1902-08-16 1903-02-10 Emry More Combined lock and latch.
US867585A (en) * 1906-03-23 1907-10-08 James W Lindsay Combined lock and latch.
US1309300A (en) * 1919-07-08 sheetsxsheet z

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US17412A (en) * 1857-06-02 Door-lock
US1309300A (en) * 1919-07-08 sheetsxsheet z
US720455A (en) * 1902-08-16 1903-02-10 Emry More Combined lock and latch.
US867585A (en) * 1906-03-23 1907-10-08 James W Lindsay Combined lock and latch.

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2839636A1 (de) * 1978-09-12 1980-03-20 Schuermann Hugo Fallenriegelschloss
US5890753A (en) * 1992-10-30 1999-04-06 Fuller; Mark Weston Lock mechanism
US5694798A (en) * 1995-12-22 1997-12-09 Sargent Manufacturing Company Motorized lock actuators
US5678870A (en) * 1996-01-31 1997-10-21 Sargent Manufacturing Company Reversible mortise lock
US5715715A (en) * 1996-02-13 1998-02-10 Sargent Manufacturing Company Lock assembly with motorized power screw
US6032985A (en) * 1998-05-22 2000-03-07 Harrow Products, Inc. Latch assembly
US5992195A (en) * 1999-01-15 1999-11-30 Sargent Manufacturing Corporation Lever handle controller for mortise lock
US6178794B1 (en) 1999-01-15 2001-01-30 Sargent Manufacturing Company Lever handle controller
US6393878B1 (en) * 2000-05-22 2002-05-28 Corbin Russwin, Inc. Mortise lock
US6748778B1 (en) * 2003-02-14 2004-06-15 Hon Technology Inc. Braced front loading lock system for office furniture
US20070125023A1 (en) * 2005-04-18 2007-06-07 Gill Michael J Mounting clip
US20080243566A1 (en) * 2007-03-27 2008-10-02 Godwin Bryan W System, Method And Apparatus For Identifying And Correcting Data Integrity Problems Associated With Remotely Located Equipment
US20130340492A1 (en) * 2012-06-25 2013-12-26 Dorma Gmbh + Co. Kg Locking Device And Leaves Outfitted Therewith And Leaf Installation

Also Published As

Publication number Publication date
FR2195993A5 (fr) 1974-03-08
AT323012B (de) 1975-06-25
NL7310758A (fr) 1974-02-12
DE2239390A1 (de) 1974-02-21

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