DE2204847A1 - ROUND MOUNTING LOCK - Google Patents

Description

Wuppertal, ^{February 1,} 1972 - patent application ¹ 2 / ma

Attorney File No. 4921

Company D «La Porte Sons, Wuppertal-Barmen

Round furniture inlet lock

The invention relates to a round furniture inlet lock, consisting of a lock housing provided with a cover, a spring-loaded tumbler and a lock bolt, which is sunk into the lock base in the initial position and whose locking part can be guided out of the bottom opening of the lock housing when the key is operated, _o

The one used in earlier times onset of furniture locks in the faces of the furniture doors, flaps, drawers OD ₀ like _o is now applied only to a very limited extent because of the relatively high labor costs. Instead, box locks lying on the back of the cabinet door are now generally used, which are much easier to assemble, but have an unattractive and obstructive effect due to their protruding lock boxes. Such overlying box locks can not be used as flap locks of z. B. writing secretaries are used, since the flap insides serve as a writing pad in the unfolded state and should be designed accordingly. I am therefore in this special area of application

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Round inlet locks have been developed, the bottom of which is plane-parallel flush with the back of the flap.

Έϊηβ known embodiment of a soHien lock is with
'Provided a round insertion opening into which the
A pin penetrates into the flap closed position,
which has a groove running transversely to its axis, in
which the pivotably mounted lock bolt arresting
intervenes. With such a lock training is an accurate
Pin adjustment required, otherwise the pin on the
Uncovering the case back. The latter is often an afterthought
the case when namely the upper horizontal wall supporting the pin serving as an abutment j

'has set or bent. j

! i

i I

Other known round inlet locks are called cylinder locks j

! and have a sunk in the lock base- ' ι!

^! let lock bolt. Such furniture locks have various disadvantages. First of all, the castle height is conditioned by

the cylinder lock design larger than the wall thickness is more common
Furniture flaps, so that a relatively large overhang on the
■ The visible side of the piece of furniture must be accepted. Besides
special cylinder keys must be made and used! which is frowned upon in practice, because the buyer likes to see it, '

! if he has the individual keys of one or more pieces of furniture;

can exchange with each other »Furthermore, it is known for these

i ■ ■ 'I

'ten furniture locks have the disadvantage that the lock bolt only ■

I; - ³ -i

3Ö9 8 337ÖDÖ1

can then be pivoted if it is through appropriate the pressure to be exerted on the key has been pushed out of its recessed locking seat. Eventually it will be with such Locks perceived as a disadvantage that the key can only be removed when the bolt is in the locked position is located.

Finally, a furniture lock of the type in question has become known, which is also designed in a cylinder design is, but can still be operated with a standard furniture key and that without the key before beginning the locking process to have to push into the lock. This is achieved through an inside the cylinder provided helically rising sliding surface. However, this training requires a very large lock length, so that the housing part protruding from the visible side of the furniture panel is extremely large; however, the more significant disadvantage is in that To see relatively complex and costly production of these locks. Due to the manufacturing process, this can also be used for State of the art furniture inlet lock, the key is only withdrawn in the locked position of the lock bolt which is particularly difficult in terms of storage and packaging.

All these round entrance locks also have in common that

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~ 4 the lock bolt can only be moved around its own axis.

The invention lies in the knowledge of the conventional furniture locks Adhering disadvantages based on the task of creating a round furniture inlet lock that at extremely low Easily and inexpensively to produce overall height, with a conventional Furniture key is to be operated and the bolt is linearly movable over the periphery of the lock housing, the Key can be removed in both the locked and unlocked position of the lock bolt. In addition, the novel lock can be used in a particularly simple manner in all pieces of furniture (doors, flaps, drawers) «

This object is achieved on the basis of a round furniture inlet lock of the aforementioned type characterized in that the, as a rocker, d _# h, formed with a transverse to its direction of movement bend bolt is guided in the lock bottom linearly over the periphery of the housing case movable so that the out of the lock housing locking part relative to the inner bolt is partially offset by the bottom wall thickness and that in the zigzag-shaped transition area of the locking text has lateral cam-shaped material approaches that engage in true-to-contour recesses of the lock base, the lugs and the edges adjoining them in the direction of bolt movement Bottom opening have opposite bevels. By means of these measures according to the invention, the task at hand is optimally satisfied «

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The novel lock can be designed in the form of a disk and as a result of the measures according to the invention have a maximum height of only 10 mm, so that even in the thinnest woods, which are used for door or flap leaves, can be used sunk, so the lock base is plane-parallel with the inner side of the door leaf runs «The kink provided according to the invention, which is guided within the lock housing The locking part makes it possible that the acted upon by the key barfc and the bolt set in linear motion once with its locking treatment part can be led out of the bottom opening, the other end of the bolt in the direction of the housing cover or at backward movement on the case back pivots. This measure brings'in connection with the run-up slope of the cam-shaped Bolt material approaches the advantage of an absolutely reliable lock function with an extremely flat design »

In a further development of the invention it can be provided that the bolt laterally delimits its linear movement path through it webs arranged vertically on the lock base are guided, the webs having elongate, open-edged recesses have, in which the lying on the lock bolt, and transversely to this slidable plate-shaped tumbler guided is. The straight movement of the lock bolt is supported by the cam-shaped material approaches that are on the slide along the outer side of the lock base on the edge area of the recess. According to another feature, the Invention of the locking mechanism that can be removed from the lock housing

309833/0031

part with the cam-shaped lugs provided on its base a T-shape that corresponds to the bottom opening.

Furthermore, the invention also provides that within the inner locking part is a curved recess into which the key bit engages, the key bit directly from the key bit acted upon edge area of the recess (closing area) about twice the wall thickness than the rest of the area of the bolt owns. Finally, the invention is also characterized in that the tumbler at its end area facing away from the arm has an angled nose directed towards the bolt «This enables the bolt to be locked in any direction fully guaranteed.

The subject of the invention is explained in more detail below with reference to the drawing, namely shows:

1 shows an exploded view of a round inlet lock according to the invention with the Sub-figures 1a to 1d,

Fig. 2 shows the fully assembled lock according to FIG. 1 on an enlarged scale, omitting the Housing cover,

Fig. 3

a vertical section through the lock according to Fig. 2,

4 and 5 the lock according to FIGS. 2 and 3 according to a Turn the key 90,

6 and 7 the lock according to FIGS. 2, 3 _o or "4, 5 after a key turn of 180,

8 shows a perspective view of the lock according to FIGS. 1 to 7 with a view of the outer one Lock base with the lock bolt in the locked position,

Fig. 9 the in a swivel flap of a piece of furniture - 7 -

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inserted lock seen in the direction of the lock bolt,

Fig. 10-a view of the inserted lock in In the direction of the key opening,

11 shows a modified embodiment of a

Furniture lock according to the invention in an exploded view with the partial figures 11a "to 11d and

Fig. 12, on an enlarged scale, the fully assembled Lock according to Fig. 11 omitting the housing cover.

The partial figure 1a shows a lock case 1, the bottom 11 of which has an opening 12, two vertically oriented webs 13 and one Has guide pin 14. Furthermore, a threaded hole is ■ having crouch 15 for screwing down the housing,

deckeis 4 (Fig. 1d) is provided if it is not preferred vfird ₉ "to lock the lid 4 by means of clip closure, the webs 13 have elongated recesses open at the edge 16 '!

The partial figure 1b shows the lock bolt 2, which comes to rest on the housing base 11 and which consists of the front locking part 21 that can be guided out of the base opening 12 and the bolt part 22 located inside the lock 3, 5 "and 7, so that the lock bolt 2 is designed as a rocker. The part 21 of the bolt 2 is offset from the part 22 by the wall thickness of the lock base i1, so that the outer side :. of the latch member 21 in lock open position flush with the outer bottom side of the lock housing 1 completes the transition region from the latch member 21 to the bolt part 22 increases stei ^n, so that a zig-AACK-shaped libergang yields at this transition, the.

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220484?

rising part is denoted by 23, are laterally cam-shaped Formed on material attachments 24, the dimensions of which correspond to the lateral recess extensions 12 ′ of the base opening 12 correspond, - ^ he approaches 24 have front and rear bevels, which are adapted to the bevels of the .Rands of the openings 12 ', these bevels serving as sliding surfaces, the allow the bolt 2 exit or entry from or into the position of the lock base 11. Between approaches 24 and the locking part 22 still remains a distance A which is slightly greater than the wall thickness of the housing bottom 11, so that between the Approaches 24 on the one hand and the locking part 22 is given a guide groove.

The lock bolt 2, the width of which is kept somewhat narrower than the space between the webs 13, has a curved shape Recess 25 which is elongated and a laterally oriented recess 26 adjoining it without transition (Bolt lock), the boundary walls of which are reinforced compared to the rest of the lock bolt area and those of the key bit be acted upon, while the key bit in the recess 25 "idles" with an approximately 180 ° rotation. The bolt 2 carries a pin 27 which passes through a link guide 35 of the lock tumbler 3.

The tumbler 3 according to part 1c is as a flat plate-shaped Disc formed, which in the assembled lock on the Lock bolt comes to rest. It has lateral approaches

~ 9 309833/0081

22048A7

31, 32, which find their guide-based support in the recesses 16 of the webs 13 (FIG. 1 a). A slightly cranked molded one Arm 33 of the tumbler receives a compression spring 34 which is supported against a projection 17 provided in the lock housing. The approach 31 of the tumbler 3 is fork-shaped, see above that it is not able to strike against the extension 15 »In the area of the extension 32, the tumbler has an approximately U-shaped Link groove 35 »in which the tour pin 27 of the lock bolt slides. The tumbler 3 has a curved recess 36, in which the key bit engages. When the key is closed, the key barfc grips the edge of the hole 37 and pushes the tumbler 3 to the side against the force of the compression spring 34, so that the in one of the U-webs of the opening 35 seated pin 27 (tour pen) can move up or down. On the side facing away from the arm 33 has the tumbler nor a downwardly directed nose 38 that releases or locks it.

The partial figure 1d shows the disc-shaped housing cover 4 with its keyhole opening 41 and with a lateral recess 42, in which the stop 17 engages and thus fixes the cover in position. In the illustrated embodiment the housing cover 4 is fastened to the lock housing 1 with a countersunk head screw 43, although it is of course just as possible is to fix the lid with undercut approaches.

Figs. 2 and 3 show the fully assembled lock with continuation

~ 10 -

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Approval dec G-ehäusedekels 4 in the scale of about 2: 1 with im Section shown placed on the guide pin 14 Key 5, with the parts lying one above the other in the lock housing can be clearly distinguished from one another by horizontal hatching, in the unlocked state, here lies the the VerriegeLungs part 21 facing away from the inner part 22 of the lock bolt approximately plane-parallel on the case back Key 5 is now twisted in the direction of the arrow, so the Key bit on the upper area of the recess wall 26 ', since this wall is slightly inclined in this position of the lock bolt is posed. This is in connection with the run-up slopes the material approaches 24 and the previous kink exerted a sufficient tilting moment on the bolt that a Raising or immersing the bolt head 21 aut, - or in the lock base 11 causes.

If the key 5 is pivoted, starting from FIG. 2 in the direction of the arrow, the key bit first engages the tumbler 3 on the edge of the hole 37 and pushes it to the right (in the drawing) so that the pin 27 is released. With a slight time difference, the loosing beard then engages the hole wall 26 ¹ with the effect of tilting the bolt 2 or moving it radially. Due to the high key bar attack and the wedge or curved surfaces of the cam-shaped extensions 24, the bolt 2 inevitably and easily slides out of its position in the housing base. Fig. 4 and b shows the position assumed by the lock elements after a Schiüs.seldrehbe-

«II-

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~ 11 -

movement of 90 °. In FIGS. 6 and 7, the locked state is reached, which is achieved after a key rotation of about 180 ° the case is. As can be seen in FIG. 7, the bolt 2 is now tilted about its kink, so that the locking part 21 opposite inner part of the bolt in the direction of the housing cover v / eist and the pin 27 in the base of the other U-web of the link groove 35 is engaged. The movement sequences with the lintriegulungijvorgang take place in the same Way, wherein the inclined hole wall 26 ″, on the upper edge of which the key bit engages, the tilting of the bolt 2 to promotes its kink.

The novel Möbel83chiοß is very easy to use in pieces of furniture, as indicated by FIGS. 9-10. All that is required is a step drill, by means of which the countersunk hole receiving the lock and the continuous keyhole hole are provided in one operation. Then it is only necessary to press the lock into the bore. A burnridere locking of the lock by means of screws or dfj. does not apply if, as shown in FIG. 8, the outer housing jacket is provided with circumferential and coaxially extending depths, ki] ^ n, hats, bulges or the like. WJyI ₀ Von I ec: ondf, rrr. Advantage eats by the novel I ¹ J = increases erriii <h1 u extremely small installation depth of the new castle, \ v <-iurci 'this even with particularly thin beia ^ -nt Jen wall thicknesses v "/ l! (. 'can be applied *

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The lock shown and described in FIGS. 1 to 8 is for use with flaps of secretaries or the like "or" intended for those applications in which a vertical lock bolt movement with a vertically oriented keyhole is required. As has been shown, the lock according to the invention can also use the same or only slightly Modified basic elements are used as a cabinet door lock, so the doors are pivoted about a vertical axis will. A corresponding embodiment is shown in FIGS. 11 (with the sub-figures 11a to 11d) and 12. This lock differs from the one described above essentially only in that the bolt is transverse to Keyhole training is oriented and that the guide pin for the key is offset from the previous example. For the sake of simplicity, the position numbers in FIGS. 11, 12 are used of the embodiment according to FIGS. 1 to 10 and only different by adding a 0 in each case made.

Claims: - 13 -

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Claims (5)

PATENT Attorney DIPL.-ING. H. J. \ ϊ'- αFM ν.C'-ί! O - 56 WUPPEfJTAL1-ELBERf-Ef-D. WM -! - -! ■ .. ί »- 13 -. Expectations 1.) Round furniture inlet lock consisting of a lock housing provided with a cover, a spring-loaded tumbler and a lock bolt sunk in the initial position in the lap base, the locking part of which can be guided out of the base opening of the lock housing when the key is actuated, characterized in that the on the lock base (11, 110 ) guided as a rocker, that is, with a bend (22, 220) formed transversely to its direction of movement, can be moved linearly over the periphery of the housing box so that the locking part (21, 210) that can be guided out of the lock housing (1, 10) is opposite the inner bolt part (22, 220) is offset by the bottom wall thickness and that in the zigzag-shaped transition area (23 _t 230) of the locking part has lateral material extensions (24, 240) which are in true-to-contour recesses (12 ·, 120 ») of the lock base (11, 110) engage, the lugs (24, 240) and those adjoining them in the direction of bolt movement The edges of the bottom opening (12, 120 ') have opposite bevels 2. Furniture inlet lock according to claim 1, characterized that the bolt (2, 20) on his 309833/0081 linear trajectory through it laterally limiting
webs arranged vertically on the lock hood (11, 110)
(13 130) is guided, wherein the elongated webs, open at the edge
Have recesses (16, 160) , in v / elche on the
Lock bolt (2, 20) lying and transversely to this sliding plate-shaped tumbler (3, 30) is guided, 3 · Furniture inlet lock according to claims 1 and 2, characterized in that the one from the lock housing
(1, 10) out Viable INTERLOCKS lungsMl (21, 210) with the
Cam-shaped projections (24,> 240) provided at its base have a T-shape which corresponds to the T-shape of the bottom opening (12, 12 ', 120, 120'). ! 4 · Furniture inlet lock according to claims 1 - 3 _f thereby
marked that within the inner < Seal part (22, 220} has a curved recess (25, | 250) is provided, in which the key bit engages, j wherein the edge area (26 ·, 26 ") (closing area) of the recess directly acted upon by the key bit, for example
twice the wall thickness than the rest of the area of the bolt (2, 20). 5. Furniture inlet lock according to claims 1-4, characterized in that characterized in that the tumbler (3, 30) at: its end area applied to the arm (33, 330) one on the Has latch (2, 20) directed angled nose (28, 280). 309833/0081 eerseite