DE2202280A1 - Retractable shovel-like lock - Google Patents

Description

DR. ING. E. HOFFMANN · DIPL. ING. W. EITLE DR. RER. NAT. K. HOFFMANN PATB NTANWALTE D-8000 MDNCHEN 81ARABELLASTRASSE 4 TELEPHONE (0811) 911087

The Eastern Company, Cleveland, Ohio / USA

Retractable shovel-like lock

The invention relates to an insertable shovel-like lock, in particular a key-controlled, spring-loaded lock Bolt lock for swing doors.

The aim of the present invention is to provide a device which more closely resembles the disadvantages of known ones Avoiding devices.

According to the invention this is achieved in that the following Parts are provided: A fastening element made of sheet metal, which is at the front with an indentation

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is provided, the bottom wall of which has a narrow elongated recess, one displaceable by the fastening element held bolt with normally from the former protruding end area and on the recess in the bottom wall aligned slot, a spring device, which the sliding bolt in an advanced position with respect a shovel-like sheet metal ßriffelement presses on the indentation at the indentation with a relatively flat front part, which is normally in the front of the Fastening element is embedded flat and in the form substantially with the shape of a part of the indentation on the fastening element matches, a device that the handle element on the side on which the sliding bolt protrudes, pivotally connected to the fastening element, a trigger that is in operative connection with the grip element with one going through the recess in the bottom wall of the fastening element and into the slot in the sliding bolt extending tongue part, an element which is movably held on the bottom wall and one in the path of movement of the trigger has movable area, one in the bottom part of the indentation on one side of the grip element attached, key controllable lock and a nooke carried by the key operated lock and optionally movable into and out of the path of movement of the element.

The invention thus provides a new and improved shovel-like lock, and in particular a retractable one Key-controlled cam lock, which can be operated from the outside, a spring-loaded bolt and is intended for a swing door. This quick and easy to install VferaSiUeßeinrichtung is solid and permanently built, contains a relatively small number of parts, most of which are metal pressed or stamped parts, and is therefore cheap to manufacture and assemble. That

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Lock for the key is in an extension of the indentation for the handle, preferably approximately in the half the depth of the actual bulge, namely at the end of the handle that is not pivoted, and has a cam, which is selectively movable into and out of the path of movement of an element, which is movable with a link of the latch actuation mechanism is engageable to restrict movement of the element in the retracted direction of the bolt optionally to restrict without thereby the return path of the bolt after touching a stop plate disturb.

Further details of the invention are to be explained and described in more detail using an exemplary embodiment with reference to the accompanying drawing.

Figure 1 is a partial front elevational view of a door and an adjacent door frame with that installed in the door lock according to the invention,

Fig. 2 is a longitudinal section with parts cut vertically approximately along line 2-2 in Figs. 1 and 3;

Figure 3 is a cross section taken approximately along line 3-3 in Fig. 1 and 2 vertically sectioned parts, and

FIG. 4 is a section taken approximately along line 4-4 in FIG.

The lock according to the invention can be used on any swing door, but is particularly suitable for use on doors of smaller commercial rooms, e.g. on doors of storage rooms or compartments for goods, Tools, equipment and the like or rooms for goods delivery and commercial vehicles. The preferred embodiment

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Λ of the lock illustrated in the drawings is for purposes of illustration in an opening or recess Io a driving zeugabteilt Ui ¹ B shown mounted. The door B is a swing door, of any suitable type, and the strip or side opposite the lock can be hung in the door frame C of the vehicle or a part of the same in any suitable manner.

The lock A essentially contains the following parts: A fastening or body element D with an indentation, a lock housing E welded to the rear of the fastening element D, a locking element F, which is displaceable in the lock housing and is acted upon by a spring G in order to be pushed forward into a or locking position, and an operating handle H, which is pivotably mounted in the two-height indentation R of the fastening element D and can be actuated by means of a cam-like, the bolt retracting trigger element T to move the bolt F against the pressure of the Retract spring G. The latch F is preferably made of a self-lubricating material such as glass-filled nylon. However, it can also be constructed differently. The trigger element T protrudes through a J angular recess Ic in the bottom wall 12 of the indentation H of the fastening element D into an elongated slot U \ in the locking element F. A stop plate 16 attached to the door frame C is provided with an opening Lö, into which the bolt F is extends when door B is closed. The protruding end of the bolt F is inclined at an angle of 60 "to the length of the bolt, as shown at 19, so that after the stop plate has been released, the bolt can be withdrawn when the door is closed, without the need to do so To operate element T. Other suitable angles of inclination can also be used at the end of the bolt, e.g. 45 °.

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from one in space; _t . :; ieiiicr,. -, atü in:: .il ^ en ^ in. v / e ^ ontiiciieu so nen piatten? ihiilicr.en Berei.>. , - '· .., .inen; ί,. a .ei: inside _; _, ukrUmmLer F1 ans el ä 7 ^, 7 ¹ ^ entiai ^ ;, i; n oeiicn αβο Bereicns "{■ - ■,

BATH ORIGINAL

209835 / 0Q92 -r-

which each ran in the vicinity of the longitudinal sides'. ·; an-ie ~ po, ^ 2 of the indentation R of the fastening element D. The handle H is pivotably connected at its right end to the fastening element D, which is the end adjacent to the protruding linden tree of the sliding bolt F, namely by means of an opening in the side flanges 72, 7 ^ of the handle element H and aligned through one another UEN sidewalls jo} 2 of the BefestiguriRselements D erstreckendem hinge pin Jb latter be ^ lu: -., t at one end (j inen head and at the other end a Ot'rnang for receiving u ines locking pin, whereby the parts in ^ usammengebau-: .e; .i condition are maintained, but can easily be installed and removed. At its pivoted end L ■■■> ■ :. the handle II with an inwardly curved flange Öo pass away, which has a bearing surface o'd of the bolt actuating trigger.-mencs T touches, this surface is bent from the 3eh'.vuiik ;; tif t to the right. The trigger T has an extension η / Λ ;. a tongue part or;, which extends through the elongated recess Io in the fastening element and extends into the ücM.itz 14 · im Hiegel. The left side of the tongue ■;, ·; of the Aus.! The eyelet element usually rests against the left end of the slot. The slot i'l in the bolt is moderate. '?. an extension to the right, so that the bolt can be withdrawn without moving the trigger element T after touching the Arischiagplatte after the door to which the lock is attached has been closed.

The trigger T actuating the bolt is a re-Iaι, .v narrow element and rotatably held on the hinge or pivot pin Yυ, which is through an opening in the trigger extends. The Anscuiagflache 82 is at the front end of the trigger. The construction is such that when turning of the handle element clockwise according to Fig. <~ - its Flange do due to its contact with the stop 32 of the trigger the latter in a clockwise direction around the se-up. nierstlf t

BAD ORiGiN ^AL - 7 209835/0092

76 turns and the bolt P looks back.

The latch actuating trigger T is an essential element but is relatively narrow compared to the length of the hinge pin 76 between the flanges 72 of the handle member and is prevented from moving axially along the hinge pin "Jb that its sides the sides of the recess touch Io in the bottom wall 12 of the fastener through this recess, the tongue portion 86 extends the trigger at any time. the right end of the recess 2o limited, advantageously, the movement of the trigger about the hinge pin 76 in the counterclockwise direction in Fig. 2, and by advancing the bar under The pressure of the spring G rotates the contact surface o2 by its contact with the flange Soften handle H counterclockwise around the hinge pin ~ fb. In this way, the spring G holds the handle H in the illustrated closed position, whereby the side walls or Flanges ' VZ, 74 grasp a web Ö8 on part 12 and the upper surface of part 7o extends into one level with the flange part 2o of the fastening element D is located. On grill H a part extending opposite to the hinge pin 7ο 9o to the left beyond the as an extension of the part 7o surückgekrümmt ausgebiJ-Deten walls 74, 72, whereby a uncere surface 9 is provided ^, which for manual Betätiguni ^1: the handle with the Fingers can be grasped.

The door lock A includes a key-operated lock L with a cylinder loo for securing the chimney. The cylinder is of a non-circular shape mounted in a non-circular opening in the rear wall 26 which forms the bottom of the shallower part 24 of the Forms recess in fastening element D. The shape of the Lock cylinder and the opening in your fastener are such that the cylinder.? i; i. in the fastener does not turn. The cylinder loo is;, in the element D duroh

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a nut Io2 screwed onto the cylinder. A lock element which can be operated and rotated with a key is held in the cylinder, on the inside thereof End of a cam element Io4 attached by a screw loo is. A cylinder loo could, however, also be made without turns, but with grooves on two opposite sides be, in which a U-shaped bracket on the Hinterbzw. Underside of bottom wall 26 could engage to secure the cylinder in the fastener and the cam member Io4 could be welded or riveted to the lock element which can be rotated by the key. This construction makes it difficult to remove the key operated lock L from the fastener without removing the the latter from a door to which it is attached.

The protruding end of the hook element Io4 can optionally be rotated into and out of the movement path of a flange part Ho by using a key. The flange part Ho belongs to an element 112, weldies is held in the lock housing E between the bolt located therein and the near side of the bottom wall 12 of the fastening element. At one end of the element 112 the part Ho and at its opposite end a flange IIH- extending in the opposite direction is formed, which extends upwards through the recess Io in the fastening element and lies in the movement path of the trigger T. The construction is such that with the cam Io4 in the path of movement of the element 112, the trigger T cannot be rotated clockwise as shown in FIG. 2 in order to retract the bolt F into the lock housing. It is thus evident that the handle H cannot be rotated under these conditions. The slot 14 in the latch F is, however, long enough to allow the latch to be withdrawn.

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if the latter touches the stop plate 16. at Turning the Nooke lo ^ into a position out of reach of element 112, the latch may have been withdrawn by turning handle H.

The bottom or rear wall portion 26 of the fastener B is so deep that the lock L is completely behind or under the flange 2o of the fastening element, however is close enough to the top of the bulge R that it is easily accessible.

The size and thickness of the parts discussed are such that that by forcibly moving the handle H clockwise as shown in FIG. 2 by preventing a retraction of the Sliding element 112 by the cam of the key-operated lock L, the hinge pin 76 bends and it opens this makes it impossible to forcibly open the lock, i.e. pull back the bolt and a door without Use a key to open with the bolt pushed forward in the closed state. With the one shown Embodiment is the width of the trigger according to Fig. 3 approximately l / lο the distance between the side walls j5o, 52 of the fastener D, and the recess Io The fastener is only slightly wider than the trigger, but it can be one trigger from another Width can be used provided that forceful manipulation of the handle will prevent bending of the hinge pin does not bother significantly. The width of the trigger is preferably no greater than about half the distance between the side walls Jo, 52.

The construction of the lock is such that it can be used in right or left closing doors or similar constructions easy to attach and completely embedded in it, i.e. that no part of the lock that closes is actuated, protrudes over the fastener.

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The key-operated lock L is also designed in such a way that it does not extend to the bottom of the entire lock,

An essential feature of the invention is the fact that the door to which the lock is attached, of can be unlocked by an authorized person with a key and opened to enter the room who owns the door, whereby the handle can be returned to its normal rest position before the door is closed. If the door is subsequently closed, the bolt is pushed back by touching the stop plate, and if the When the door reaches the closed position, the inside of the room cannot be entered without re-using the key will. Another important feature is that the lock cannot be forcibly opened to gain entry into the room.

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Claims (5)

Claims I.) Inlet shovel-like lock, characterized in that the following parts are provided: a fastening element (D) made of sheet metal which is provided on the front with an indentation (R), the bottom wall (12) of which has a narrow elongated recess (lo) , a bolt (F) held displaceably by the fastening element with normally protruding from the former end region (19) and a slot (I ² O) aligned with the recess (lo) in the bottom wall (12), a spring device (G) which the sliding bolt in pushes an advanced position with respect to the indentation, a shovel-like sheet metal handle element (H) on the indentation with a relatively flat end portion which is normally evenly recessed into the end face of the fastening element and in shape substantially with the shape of part of the indentation on the fastening element coincides, a device (76) which the handle element on the side on which the sliding bolt protrudes ht, pivotally connected to the fastening element, a trigger (T) in operative connection with the grip element with a tongue part (86) extending through the recess (lo) in the bottom wall of the fastening element and into the slot (14) in the sliding bolt Element (112) which is movably held on the bottom wall and has an area (114) that can be moved into the path of movement of the trigger, a lock (L) which is attached in the bottom part of the indentation on one side of the handle element and can be controlled by a key, and a nooke ( Io4), which is carried by the key-operated lock and can optionally be moved into and out of the path of movement of the element (112). - 12 - 209835/0092 2. Lock according to claim 1, characterized in that the indentation (H) in the actuating element (D) has a first and a second recess area (22, 24) of different depths each with a first and a second bottom wall part (12, 26), wherein the first bottom wall part (12) lies at a greater distance from the front of the fastening element (D) than the second bottom wall part (26) and the recess (lo) through which the trigger (T) extends is in the first, lower bottom wall part ( 12) is established. 3 · Lock according to claim 2, characterized in that the handle (H) with the fastening element (D) connecting device is a hinge pin (76) which is located under the: flat front part of the handle and is in the vicinity of the side of the fastening element on which the sliding bolt (F) protrudes, that the trigger element (T) is attached to the hinge pin (76) and one in a Distance from the hinge pin provided stop surface (Ö2), which can be grasped by the grip element and the tongue portion (c36) of the trigger pivoting to withdraw the bolt (F) is able to grant. 4. Lock according to claim 2 or J, characterized in that the F, in book> -ung (R) in the i3efestigungselement (D) is of generally rectangular shape and ζν.τ i spaced apart, parallel 3 sidewalls (;> o, 32), which by forehead nn ··. ■ »jJe ( ^T 4, Χ») are connected ind thatdje recess (ic; in the delivery de) · jjoden · wall (12) in the middle between the: side part of the recess and parallel to them]! · ■ - ■ '.. 5. Lock according to claim 4, characterized in that the shape of the handle element (H) in the 8 * -D ORIGINAL 209835/0092 ' generally coincides with the shape of the first deeper indentation area (22) and has two offset, parallel flange files (72, 7 ^) which lie on the side wall parts 0o, y2) and run parallel to them, so that the handle continues to be in the vicinity of the End wall part O4) of the first, deeper indentation region (22) has an end flange (bo), and that the pivot pin (76) extends through the parallel side wall parts of the fastening element and through the flange parts of the handle. 2 0 9 8 3 5/0 U i) 2 Blank page