DE237975C - - Google Patents

Description

Dipping. W. Driesch ' Dusseldorf

Chariotfenstrasse 58

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- M 237975 CLASS 68 b. GROUP 22.

HAUTAU & SUHR in HAGENBURG, Sch.-L.

Skylight window lock. Patented in the German Empire on December 14, 1910 .

Either rod locks are used to open and close upper window sashes used, which are adjusted from the side by means of a lever linkage, or also Cords with one or two cords.

The present invention relates to closures of the first type, in which the The sash and the walls are connected by a pair of scissors from the control rod ίο by suitable intermediate means, e.g. B. by Latch that is moved. The invention consists in that connected to the window The end of the scissors grips into the area of a latch moved by the bolt, which controls the lever and so that the window sash towards the end of the final movement of the window sash to the window frame attracts. The pawl is advantageously fork-shaped so that it j j the lever end of the scissors from both sides .20; grips around the window sash too : can push off the window frame at the beginning of the opening movement.

The drawing shows the invention in one embodiment.

Fig. Ι is the view of the lock with the window sash closed.

Fig. 2 shows the lock in connection with the four-bar linkage in closed and

3 in the open position.
4 and 5 show another embodiment of the scissors in the closed and open position.

The opening and closing of the window sash is mediated in a known manner by a rod α , which can be moved up and down next to the lower window sash by a handle b, for example by means of a toothing or an articulated connection. The vertical movement of the rod α is transmitted by a chain or the like positively guided at an angle to a bolt d that can be horizontally displaced in the lock housing c. On the housing c , two links e and f are mounted so that they can swing at a certain distance from one another. The outer ends of the two links e and f are connected by a link g of shorter length than the distance between the two pivot pins of the link e and f on the housing c. The links e and f thus form a non-equilateral quadrangle with the lock housing c as a frame and with the link g. The link g is extended like a lever beyond its one pivot pin and engages with this lever g ¹ on a pin h ^{1 which is} detachably arranged on the upper window sash h .

The handlebar e has a slotted arm e ¹ reaching into the lock housing c , in which a nose d ^{1 of} the bolt d engages. By moving the bolt d , the quadrangle can be set in oscillating motion. On the lock housing c there is also mounted a pawl i which grips a slotted arm i ¹ rjesrEzfTln the another lug d ^{2 of} the bolt d . The pawl i is bent to the side and has a slot i ² in this bend. The bend is arranged so that the end of the lever g ¹ engages in the j slot i ^{2 of} the latch i towards the end of the final movement of the window sash h , whereby the I lever g ¹ and thus the "window sash during the j inward movement of the latch i in On the other hand, when the latch i emerges from the lock housing c, it pulls the lever g ¹ with it and thereby pushes the window sash away from the frame

The lugs d ¹ and d ^{2 of} the bolt d are arranged at such a distance from one another. net that upon the opening movement of the handle b , the nose d ² first moves the pawl i out of the lock housing c until its slot i ^{2 has released} the end of the lever g · ¹ . Once this has taken place, the nose d ¹ engages in the slotted arm e ^{1 of} the link e and then also moves it away from the window frame. Conversely, when the bolt is moved back, first the nose d ¹ comes into effect and then the nose d ² .

The lock works in the following way:
If the handle b is moved downwards with the window closed, the rod α moves upwards and thereby moves the bolt d in the lock housing c to the right. In doing so, the nose occurs d? into the slot of the arm i ¹ and thereby moves the pawl i out of the lock housing. Since the end of the lever g ¹ engages in the slot i ² , this lever is taken along when the pawl i is moved out and, since it engages the window sash, the latter is removed from the frame.

pressed. As a result of the short lever arm of the pawl i , the sash is pushed off reliably and easily even if it is severely swollen. When the handle b has covered about half of its way, the pawl i has stepped out of the lock housing c so far that its slot i ² releases the end of the lever g ^1. As soon as this occurs (Fig. 3 dotted position), the nose d ¹ engages in the slot of the arm e ¹ and thereby swings the handlebar β towards the interior of the room. This oscillating movement of the link e is transmitted as a result of the unequal lengths of the links of the quadrangle c, e, f, g to the lever g ¹ acting with its end on the window sash h in such a way that the window sash is opened sufficiently wide. By changing the lengths of the individual sides of the quadrangle, the opening width of the window sash can be selected as large as desired. If in some cases an adjustment of the opening width is desired, this request can be taken into account by placing either two or three links of the quadrangle against each other. can be adjusted. For this purpose, z. B. the ends of the links e, f or the link g can be slotted on one of the pivot pins and the pins themselves are replaced by adjusting screws.

When the window is closed, the nose d ^{1 of} the bolt d first acts on the link e (Fig. 3), which is thereby drawn to the window frame and thereby pulls the window sash through the hinge connection f, g, g ^1. Towards the end of the closing movement, the end of the lever g ¹ re-enters the slot i ^{% of} the pawl i . With a further final movement of the handle h , the pawl i is drawn into the lock housing c through the nose ^{d 2} and presses the window sash h firmly against the window frame by means of the lever g ^1. To secure the pawl i and the window sash in this final position, the bolt d can still perform a short final movement in which the arm i ¹ rubs on a contact surface d ^{s of} the bolt d , causing a backward movement of the pawl i and thus an unintentional opening of the window sash is prevented. Due to the arrangement of the pawl i , the scissors formed from the links e, f and the link g with 75 // lever g ¹ in which the largest \; Expression of power-requiring marks and "completely relieved pulling the window sash, so that these parts ^relatively; can be performed weakly 80 '.

The pin h ¹ connecting the lever g · ¹ to the window sash h can be pulled out in a known manner so that the window sash h can be folded down completely for cleaning.

Instead of a simple articulation between the scissor members f and g , the same can also be moved in a movable manner, for. B. as shown in Figs. 4 and 5, connected. The end of the link g ¹ is designed as a gear sector g ² , which engages in a rack Z " ^{1 of} the link f . When the window is opened, the gear sector rolls in one direction or the other on the rack f ¹ and this causes the lever g ^{1 to} swing back and forth.

Claims (2)

Patent Claims: 1. skylight window covering, are at the window wing and jamb connected by a pair of scissors is moved o out of the actuating rod by means of a bolt. The like., Characterized in that the scissor end is connected to the window casement (g ¹⁾ in the region of a by the bolt (d) moving pawl (i) engages, which pulls the lever (g ¹ ) and thus the window sash towards the end of the final movement towards the window frame. 2. Skylight window closure according to claim i, characterized in that the pawl (i) engages around the lever end (g ¹ ) from both sides so that it presses this and thus the window sash at the beginning of the opening movement from the window frame. 1 sheet of drawings.