RU2614094C1 - Device for restricting the rotation angle of valve with the left cover and supporting hole in the right slider - Google Patents

Abstract

FIELD: machine engineering.

SUBSTANCE: device for restricting the rotation angle of valve with the left cover and supporting hole in the right slider comprises a hook adapted to hinge the pad with a slot having a flared end facing the hinge joint. In this case, the hook is made longitudinally movable and passing through the flared end of the slot, with the possibility of subsequent meshing with at least one edge of the slot along its length during the valve opening. On the pad, the right slider is worn movable along it with a supporting hole configured for the hook to completely or partially pass therethrough after it passes through the extended end of the longitudinal slot. Thus, on the pad, a rack ratchet mechanism is made comprising a toothed rack, with at least one tothed recess in one of the longitudinal slot edges and provided with a squeezing handled clutch disposed to squeezing from the toothed recesses and movement in the slot between the right slider and the left cover, placed on the pad overlapping with the two longitudinal slot edges and connected to the right slider to move with it and the clutch along the slot. In this case, the left cover or the right slider has a supporting hole through which the squeezing handle is put.

EFFECT: improved device reliability.

3 cl, 16 dwg

Description

The invention relates to bolts and other locking devices for sashes, mainly for doors or windows of buildings, in particular to devices for restricting the opening of doors and sashes and for fixing them in the open position using movable elements located on the frame and sash, coupled and disengaged to provide further opening only if the sash is closed.

In this description, the terms are used in the following sense in accordance with the source of information [1]:

“Casement” is a general term for pivoting, sliding or otherwise moving doors or windows. This term also covers other movable structures, such as drawers, lids of drawers, car trunks, covers or hoods, to which control fasteners, snap-fit or locking devices belonging to this class can be mounted;

“Frame” - the element to which the sash is attached. This term does not include the frame that forms part of the sash, such as window binding, but in some cases the frame itself may be a sash;

“Deadbolt" is a sliding, pivoting or otherwise moving element that is usually located on a door to keep it closed by engaging with a holder on the frame. It is manually actuated using a key or other device;

“Pad” - an element in the form of a latch, hook, etc., pivotally mounted on a frame or sash, used to lock the sash, for example using a padlock.

The term “box” is understood in accordance with the source of information [2]:

“Box” - an assembly unit of a window or door block of a frame structure designed for hanging sashes or paintings, fixedly fixed to the walls of a window or doorway.

The terms “cover” and “case” are understood in accordance with the source of information [3]:

“Cover” - a part covering the body of the product;

"Housing" is the main part of the product, inside of which the details of its mechanism are placed (explanation of the author of this description of the invention: the housing in this description refers to both the guide housing for placing a bolt with a hook in it, and a cover with a groove in which, that is, inside pads, parts of the rack and pinch ratchet mechanism in the form of a spring-loaded dog and a slider, closed by a lid) are placed.

The following terms are understood in accordance with the source of information [4]:

"Lap" - adv. Laying the edge or end of something is usually on the edge or end of the other;

"Hook" - a device that captures, hooks something, or an object that you can catch on;

"Jamb" - each of the side parts of a door or window frame;

“Depress” - action according to the meaning of the verb “depress”;

“Squeeze” - pressing, advancing, forcing to move, retreat; push back;

“Plate” - diminutively to the plate; a thin flat piece of metal, glass, etc .;

"Slider" - 3. Tech. A detail of a mechanism sliding back and forth over a surface in a straight direction;

“Slider” - 3. Tech. The same as the slider (3 digits);

“Strip” - diminutive to “strip”;

“Strip” - an oblong, elongated piece of something (fabric, metal, etc.);

“Frame” - a quadrangular or other form of fastening from bars, planks, for inserting, framing something.

The terms "box" and "frame" in this description of the invention are understood as synonyms.

The following terms are understood in accordance with the source of information [5]:

“Ledge” is the protruding part of something;

"Groove" - a narrow slot or recess in which a protrusion of another object is inserted during bonding;

“Plate” - a flat strip of solid material;

“Slot” - through slotted hole;

"Well" - a narrow hole, a gap; keyhole (key hole).

The following term is understood in accordance with the source of information [6]:

"Alignment of parts" ("coaxial") - the correct location of the axes of the parts ... on the same line, for example, alignment ... of the holes for the bearings of the rear axle housing of the tractor.

The following terms are understood in accordance with the source of information [7]:

"Ratchet mechanism" - a device in which the relative movement of the links is possible only in one direction, and in the other direction, the links interact due to the pressure of their elements and cannot move relative to each other;

“Ratchet ratchet mechanism” is a ratchet mechanism in which there is a rack with teeth and a dog (possibly spring-loaded).

In this description of the invention, the concept of a “toothed recess” in the rack of a rack-and-pinion ratchet mechanism should be understood as a recess for accommodating a dog’s tooth with the rack moving in only one direction.

In this description of the invention, the concept of "dog’s tooth" should be understood as the free (not fixed to other structural elements) end of the dog, made with the possibility of placement in the toothed recess.

In this description and the claims, the term "gear rack" should be understood as a rack with one, at least, gear recess.

In this description, the concept of "step of the tooth recesses" should be understood as the distance through which the toothed recesses of the same profile are repeated.

In this description of the invention, the term "squeezing handle" should be understood as "a handle or some protruding element for pressing, rigidly connected or made integral with the squeezing element."

In this description and the claims, the concept of "left cover" should be understood as "a cover placed on the side of the lining facing the clutch in the absence of interaction of the clutch with the lining or to the guide body when placing the deadbolt with the hook in the guide body".

вида в поперечном сечении, если смотреть на него со свободного конца накладки, концы которого огибают продольные края накладки и расположены со стороны накладки, обращенной к зацепке при отсутствии взаимодействия зацепки с накладкой или к направляющему корпусу при размещении засова с зацепкой в направляющем корпусе».In this description and the claims, the concept of “right slider” should be understood as “slider

cross-sectional view, if you look at it from the free end of the lining, the ends of which bend around the longitudinal edges of the lining and are located on the side of the lining facing the hook in the absence of interaction of the hook with the lining or to the guide body when placing the bolt with the hook in the guide body. "

A device for limiting the angle of rotation of the sash, called "door chain". The door chain contains a chain, which at one end (the last link) is attached to the base plate with holes for fasteners (screws or screws) to fix the chain to the jamb, and a hook with a spherical or mushroom-shaped thickening is fixed at the other end of the chain. The device also contains a locking plate with a groove having an extension at one end and holes for fasteners (screws or screws) for rigidly fixing the locking plate on the casement by expanding the groove in the opposite direction from the edge of the casement. The expansion in the groove serves to introduce a spherical or mushroom-shaped thickening of the hook into engagement with the edges of the groove in order to provide a limited angle of rotation of the leaf and to remove the spherical or mushroom-shaped thickening of the hook from the meshing with the edges of the groove to ensure that the leaf opens completely [8], [9].

This known device has the following three technical disadvantages. Firstly, it can only be used for shutters that open inside the room, since the locking plate cannot be fixed on the jamb due to its sufficiently long length due to the large length of the groove made in it, and the jamb is both wooden and, moreover, , metal has a significantly smaller transverse thickness. Secondly, the chain can be eaten with nippers, since the chain links, like the other parts of the device, are in practice made of annealed plastic steel and are not quenched after the manufacture of the device. Thirdly, with a sufficiently powerful jerk, some chain link (weakest) can break due to a small cross section and internal defects (microcracks or microcracks) in the metal. The first technical drawback leads to a decrease in the area of use of the device, and the second and third to reduce the safety of operation.

A device is known for fixing an ajar door or window that contains a base, a locking element, a locking strip and a connecting element, and is characterized in that the connecting element is made of flexible material and is permanently connected to the base and the locking strip by means of a conical fixing screw. As a connecting element in the device, a metal and non-metal rope (cable) can be used. The locking bar has a figured hole corresponding in shape to a T-shaped crossbar, locking recesses for additional (second degree) fixing the T-shaped crossbar in the locked position, and a pusher with a spring [10].

A technical drawback of this device is that an attacker can easily disengage the T-bolt from the locking plate by sticking his hand in the doorway and turning the T-bolt 90 degrees, previously pressing it against the action of the spring-loaded pusher, which drastically reduces safe operation of this device, since the attacker will not be able to resist children, women and the elderly. To eliminate this technical drawback, the maximum clearance (opening) of the ajar door should be narrow enough so that the palm does not crawl, for example, not more than 4 cm. But with such a narrow clearance (opening) of the ajar door, not only a small overview is created, but also the inconvenience of communicating with the visitor (by visitors) and receiving from them (such as postmen or couriers) delivered small items or parcels.

A device for limiting the angle of rotation of the sash, called "chain loop", containing the plate with a hinge, made in the form of an elongated hinge with a groove having an extension at the end facing the hinge (in fact, this is a locking plate that performs the same functions, as in the “door chain” device described above, but not fixed rigidly, but hinged, that is, with the possibility of rotation). The swivel plate (thanks to the hinge mount) is mounted on a jamb. The device also contains a hook with a spherical or mushroom-shaped thickening, which is rigidly attached to the sash that opens inward, with the possibility of catching the lining for it by putting the lining with the extended end of the groove on the spherical or mushroom-shaped thickening of the hook with the sash completely closed. Upon subsequent opening of the sash inward, the hook moves into the groove of the lining and spherical or mushroom-shaped thickening engages with the edges of the groove, which ensures a limited angle of rotation of the sash (in fact, the hook here performs the same functions as the hook in the “door chain” device, only fixed motionless) [11].

The technical disadvantage of this device is that the hook acts as a spherical or mushroom-shaped thickening over the edge of the surface on which it is rigidly fixed. This leads to the fact that manufacturers and suppliers recommend installing this device only on leafs that open inward, since when installing on leafs that open outward, a hook with a spherical or mushroom-shaped thickening must be rigidly fixed to the jamb. At the same time, the hook along with a spherical or mushroom-shaped thickening will constantly protrude beyond the inner edge of the jamb, which not only has an unaesthetic appearance, but also reduces the width of the door frame passage, and also creates a danger of people passing by catching it. Thus, the disadvantages of this device include a low field of application (only for leafs that open inward), as well as an unaesthetic appearance and increased danger of operation when installed on leafs that open not only outward, but also inward.

In addition to the above, the disadvantage of all of the known devices [8], [9], [10], [11] is that in an ajar position, an attacker can close and then sharply pull the sash (door) in the opposite direction to the stop. In this case, the sash (door) brakes sharply, a very large acceleration of braking of the sash (door) occurs, resulting in a huge braking force of the sash (door), proportional to the mass of the sash (door) and acceleration of braking of the sash (door). The enormous braking force that arises can either break the flexible elements of these devices (chain, cable), or disrupt the fastening of these devices to the jamb of the door (window) box or to the sash (door).

A device is known for limiting the angle of rotation of the sash, taken as a prototype, comprising a pivotally mounted cover with a longitudinal groove having an expanded end facing the hinge, and a catch made movable with the possibility of longitudinal movement and passage through the extended end of the groove, followed by engagement at least one edge of the longitudinal groove along its entire length when the sash is opened, while a C-shaped crawl is put on the pad with the possibility of moving along it ok (note: this is essentially the “right slider” in the description of the new technical solution below), the ends of which bend around the longitudinal edges of the lining and are located on the side of the lining facing the hook in the absence of interaction with the latter, and a hole is made in the C-shaped slider ( note: it is essentially a “support hole” in the description of a new technical solution below) with the possibility of passing through it fully or partially the hooks after it passes through the extended the end of the longitudinal groove [12].

The disadvantage of this device, as well as the disadvantage of all the above known devices [8] - [11], is that in an ajar position, an attacker can close and then sharply pull (push) the sash with great acceleration in the opposite direction, accelerating it to high speed until collision with focus. At this moment, a strike occurs in the prototype of the strap with a groove about the bolt with a hook, after which the sash sharply slows down, resulting in a very large acceleration of the slowing of the sash, resulting in a huge inertia force, which drastically slows down the movement of the sash until it stops almost instantly. The huge inertia of the sash resulting from the impact can destroy, for example, the fastening of the prototype device to the door frame or to the sash. And since an attacker can perform several similar actions in a row with shock loads, this can lead even more to the destruction of the weakest (for example, with the smallest cross-section) elements of the sash rotation limiter in the prototype and devices [8] - [11] .

We give the following definition of impact: “The interaction of bodies, in which for a very short period of time, finite changes in the velocity of these bodies occur spasmodically, is called an impact” [13], p. 473.

Let us make a simplified assessment of the impact of the impact on the magnitude of the arising stresses in structural elements, for example, in a bar with a longitudinal groove and fasteners (bolts).

The movement of the sash when it is jerked by the attacker after previously fully covering it breaks up into 2 cycles:

- acceleration of the sash before the collision of the limiter of the angle of rotation of the sash with emphasis;

- slowing the sash to its complete stop after the collision of the limiter of the angle of rotation of the sash with emphasis.

In the prototype for a casement opening outward, the bolt with a hook mounted on the door frame jamb serves as an emphasis, and collides with it (strikes against it) during a sharp acceleration of the casement plate that is articulated on the casement with the end farthest from the hinged end of the longitudinal groove. And for the sash that opens inward, the emphasis is the overlay pivotally mounted on the jamb of the door frame, and a bolt with a hook, fixed on the sash, collides with it. In this case, a longitudinal impact of the lining with a longitudinal groove about a fixed bolt with a hook for a sash opening outward, or a bolt with a hook on a fixed lining with a longitudinal groove for a sash opening inward, occurs. The sash speed in an extremely short period of time of impact, not exceeding tenths of a second, drops to zero, resulting in a huge deceleration associated with the emergence of a very large inertia force, which determines the force and effect of the impact on the structural elements of the prototype, of which the most critical to the impact loads are the connection elements (hinged lining and fasteners that secure the prototype to the sash and to the door frame jamb.

It is known that “However, it is theoretically difficult to establish the law of change of speed, and hence the force of inertia. Here another way is used, based on the approximate use of the law of conservation of energy and on the following assumptions ”[13], p. 250:

1) stresses upon impact do not exceed the limit of proportionality, so that Hooke's law on impact retains its force;

2) bodies after impact are not separated from each other;

3) the mass of the striking body is considered small in comparison with the mass of the striking body, therefore it is not taken into account;

4) we neglect the loss of part of the energy that has passed into heat and into the energy of the vibrational motion of colliding bodies.

It is known that “... all factors in the system under consideration, upon impact, increase by the same number of times in comparison with static loading. This number is the dynamic coefficient ... to be determined. ”[14], p. 475.

“Thus, to determine the highest stresses and displacements during impact stresses and displacements, found as a result of calculating the system by the force P acting statically, it should be multiplied by the dynamic coefficient k _d ...” For example, the dynamic stress σ _d in the impacted body upon impact is [15], p. 532, formula 14.14:

where σ _d - dynamic stress upon impact;

σ _article - stress under static load;

k _d - dynamic coefficient,

× is the sign of multiplication.

In the further presentation, we take as an example that in the prototype the sash opens into the room, the bolt with a hook is fixed to the sash with the possibility of longitudinal movement, and the cover with a longitudinal groove is hinged on the door frame jamb.

“When struck by a horizontally moving body (in the prototype it is a horizontally moving leaf opening inward and a bolt with a hook), when the mass of the striking body (in the prototype is a plate with a longitudinal groove pivotally mounted on a jamb) can be neglected, for the dynamic coefficient k _{e the} following formula is known ”[15], p. 540, formula 33.14:

where Vc is the speed of a horizontally moving, that is, an impacting body (in the prototype, this is a flap opening inwards, on which a deadbolt is attached with a hook) at the moment preceding contact with the striking body (in the prototype, this is an overlay with a longitudinal groove hinged on the door frame) );

g is the acceleration of gravity;

Δ _article - the absolute longitudinal elongation of the impacted body (in the prototype it is a plate with a longitudinal groove and fasteners connecting the plate with the jamb);

/ - division sign;

× is the sign of multiplication.

We assume that during a sharp jerk by an attacker, the sash moves equally accelerated under the influence of the force applied by the attacker. Then the leaf speed Vc can be determined in accordance with the well-known expression, [16] p. 58, formula 22.5:

where Vc is the sash speed during a jerk by an attacker at the moment preceding the impact;

A - sash acceleration;

Lp is the sash acceleration length equal to the length of the longitudinal groove minus the thickness (diameter) of the hook.

From (1) - (3) we obtain:

From (4) it follows that, ceteris paribus, in order to reduce the dynamic stress during an impact, it is necessary to reduce the acceleration length Lp of the sash before the impact.

The objective of the invention is the creation of a new, patentable device for limiting the angle of rotation of the sash, not having the above disadvantages of the prototype and analogues and, accordingly, ensuring the achievement of the following technical results, namely:

- improving the reliability and safety of operation of the device to limit the angle of rotation of the sash by reducing the length of the acceleration of the sash when it is jerked by an attacker;

- reducing the material consumption of the device to limit the angle of rotation of the sash.

Another objective of the invention is the expansion of the arsenal of technical means for a similar purpose.

The objectives of the invention are solved and technical results are achieved by the fact that in the device for limiting the angle of rotation of the sash with the left cover and a reference hole in the right slider containing a hook and made with the possibility of hinging the cover with a groove having an expanded end facing the hinge, with this hook is made movable with the possibility of longitudinal movement and passage through the widened end of the groove, as well as with the possibility of subsequent engagement for at least one edge the basics along its entire length when the sash is opened, and the right slider with a support hole is put on the cover with the possibility of moving along it, made with the possibility of passing through it fully or partially the hooks after it passes through the extended end of the longitudinal groove, and in addition to this (unlike from the prototype) on the plate a rack-and-pinion ratchet mechanism is made, comprising a toothed rack with at least one toothed recess in one of the longitudinal edges of the groove and a dog equipped with an squeezing handle, located with the possibility of squeezing out of the serrated recess and moving into the groove between the right slider and the left cover placed on the lap with both longitudinal edges of the groove and connected to the right slider with the ability to move along with it and the dog along the groove, while in the left cover or right slider an auxiliary hole is made through which the squeezing handle is brought out.

To increase the convenience and reliability of operation (as well as to ensure the manufacturability of the device), a slider with a cutout is placed in the groove with the possibility of movement between the left cover and the right slider, in which a dog is mounted, mounted with the possibility of rotation on an axis fixed with its own the ends on the left cover and the right slider, while the dog is spring-loaded relative to the slide towards the gear rack and is made at the same time with the squeezing handle protruding outward through the auxiliary e hole made in the left cover, and the spring for the dog is made of an elastic strip bent at an angle and placed in the cutout of the slider, and the gear rack is made with several toothed recesses, a hook with the possibility of engagement for both edges of the groove is made at the end of the bolt, on which the handle is rigidly fixed, the bolt with the possibility of longitudinal movement is placed in the guide body, in which a longitudinal well is made with the possibility of moving the bolt handle along it, while the overlay is made in the form of a plate, and arnirnoe mounting a door or window hinge.

To simplify the design of the rack and pinch ratchet mechanism, a spring dog is placed in the cutout of the slider, which is made of flat elastic material, and the end opposite the squeezing handle is rigidly attached to the slider.

New features of the invention, together with known features form an inextricable aggregate, which allows to solve the problems of the invention and achieve the above technical results.

Indeed, improving the reliability and safety of operation of the device for limiting the angle of rotation of the sash with the left cover and the reference hole in the right slider by reducing the length of the jerk of the sash by an attacker is ensured by the fact that in addition to the known features of the prototype, a ratchet mechanism containing a toothed rack is made on the plate, as with at least one toothed recess in one of the longitudinal edges of the groove and a dog equipped with an squeezing handle, arranged to be pressed out of the toothed recess pouring and moving in the groove between the right slider and the left lid, placed on the lap overlap with both longitudinal edges of the groove and connected to the right slider with the ability to move with it and the dog along the groove, while an auxiliary hole is made in the left lid or right slider, through which is derived squeezing handle.

If the dog is not spring-loaded (there is no spring pressing the dog to the gear rack or the dog is not spring-loaded, that is, the dog is made of inelastic material), then before opening the sash, the dog is disengaged from the tooth recess by pushing the squeezing handle to the side, opposite to the serrated recesses, if such engagement takes place, and then the sash is opened either for the entire length of the longitudinal groove or for its part, for which, in the required position, the sash is pressed on the squeezing handle in the direction of the serrated recesses, introducing the dog into engagement with one of the toothed recesses. In this case, in order to prevent the attacker from performing a shock action by the sash by abruptly slamming it and opening it, it is necessary to constantly press the dog through the squeezing handle towards the dentate recesses while communicating with the potential attacker. To increase the ease of use, the dog can be spring-loaded towards the toothed rack or spring-loaded, that is, made of elastic material.

Due to these and well-known signs, the length of the sash acceleration when it is jerked by the attacker is limited by the step length of the toothed recesses in the toothed rack. If there is one toothed recess made in the toothed rack in the middle of the acceleration length Lp, the definition of which is given above in formula (3), the pitch of the toothed recesses will be equal to Lp / 2. The dog, in the case of making serrated recesses in the lower longitudinal edge of the groove, will fall into the serrated groove under the action of its gravity or, in the case of the serrated grooves in the upper longitudinal edge of the groove, under the force applied to the squeezing handle by the person opening the sash. In the case of making serrated recesses in the lower longitudinal edge of the groove to increase the reliability of the rack and pinch ratchet mechanism, a force can be applied to the squeezing handle with the face opening the sash towards the serrated recess for the dog to enter it. Let, for example, in a ratchet mechanism, the pitch of the gear recesses L3 of the rack is equal to:

Assume that the acceleration length Lp of the sash when it is jerked by an attacker in the prototype is:

From (5) and (6) we obtain:

From (7) it follows that the length of the acceleration of the sash without a rack-and-pinion ratchet mechanism (in the prototype) is 50 times longer than the length of the acceleration of the sash with the rack-and-pinion ratchet mechanism, and therefore, when an attacker snaps the sash in the prototype, it will accelerate to a much higher speed, which, according to (4) ) will lead to a much stronger impact, that is, a higher value of dynamic stresses in the structural elements of the prototype, which can damage or destroy some structural elements of the prototype, for example, the axis of articulation of the lining and mantle elements, which, taking into account the shock loads, must be performed with an increased cross-section, which will require an increase in the overall dimensions of these and their mating parts, which will result in an increase in the metal consumption of the prototype as compared with the proposed device for limiting the angle of rotation of the sash with the left cover and the reference hole in the right a slider containing a ratchet mechanism, consistent with the structural elements of the prototype.

Thus, the new features, together with the known features, can significantly reduce the dynamic stresses in the device to limit the angle of rotation of the sash with the left cover and the reference hole in the right slider having a ratchet ratchet mechanism, which allows to increase the reliability of its operation and to reduce the metal consumption of the rational design parts of its structure, which does not contain a ratchet ratchet mechanism and is similar to the prototype.

A device for limiting the angle of rotation of a leaf with a left cover and a reference hole in the right slider, being new, expands the arsenal of technical equipment for a similar purpose, which is additionally one of the objectives of the invention.

Thus, all these objectives of the invention are solved, and technical results are achieved by a combination of known (restrictive) and new features.

It should be noted that all the main objectives of the invention have been solved, and technical results are achieved using all the features of the independent claim.

A preferred embodiment of certain features of the invention is indicated in the dependent claims.

A non-limiting embodiment of the present invention is described by way of example to illustrate the claims, while the proportions of some small elements are not respected for their sharper image.

In FIG. 1 shows a perspective view of a device for limiting the angle of rotation of a leaf with a left cover and a reference hole in the right slider in the initial state, in which the plate is in contact with the leaf opening outward.

In FIG. 2 shows the same as in FIG. 1, but with the bolt hook extended outward (beyond the edge of the joint).

In FIG. 3 shows the same as in FIG. 2, but in the slightly open outward position of the sash by the length of the groove in the cover plate to prevent unauthorized passage into the room.

In FIG. 4 shows a rectangular projection of the left view (with respect to the sash, if you face it) with the position of the lining, turned to contact with the jamb.

In FIG. 5 is a view A of FIG. four.

In FIG. 6 is a view B of FIG. four.

In FIG. 7 shows a section along BB in FIG. 4 with the contour of the expanded end of the groove and the contour of the support hole in the right slider (the outlines of these contours are located beyond the section plane BB).

In FIG. 8 is a view G of FIG. 5.

In FIG. 9 shows the remote element D in FIG. 8.

In FIG. 10 as in FIG. 6, a top view (view B) of FIG. 4, but with the bolt hook extended outward through the widened end of the lining groove and the support hole in the right slider.

In FIG. 11 is a cross-section along EE in FIG. 10.

In FIG. 12 is a view G in FIG. 10, where a rack-and-pinion ratchet mechanism with a slider and a spring-loaded dog is shown, and also a hook in the lumen of the support hole in the right slider is shown.

In FIG. 13 shows a cross-section along II in FIG. 12.

In FIG. 14 as in FIG. 10 and FIG. 6, a top view is shown (view B in FIG. 4), but in the ajar position of the sash with a securely fixed cover with a hook.

In FIG. 15 is a cross-section along KK in FIG. fourteen.

In FIG. 16 as in FIG. 12 is a view G in FIG. 10, but a ratchet ratchet mechanism is shown with a slider and a springing dog made of flat elastic material and an end opposite the squeezing handle (not shown) rigidly attached to the slider, and a hook in the lumen of the support hole in the right slider is also shown.

A device for limiting the angle of rotation of a leaf with a left cover and a reference hole in the right slider comprises a cover 1 with a hinge 2 and a groove 3 of the same width, ending with an expanded end 4 facing the hinge 2, which is configured to rotate the lining 1 in the form of a door hinge and is rigidly fixed with fasteners 5 on the leaf 6, which opens outward. The device also contains a deadbolt 7, placed in the guide housing 8 with the possibility of longitudinal movement. In the guide body 8, a longitudinal well 9 is made with the possibility of moving along it a handle 10, rigidly fixed on the deadbolt 7, at one end of which a hook 11 is made with the possibility of engagement for both longitudinal edges of the groove 3 using the protrusions 12 and 13. The guide body 8 with the fasteners 14 are rigidly fixed to the jamb 15 with the possibility of the hook 11 passing through the widened end 4 of the groove 3. On the plate 1 there is a rack-and-pinion ratchet mechanism containing gear recesses 16 made in the upper longitudinal edge of the groove 3, and the dog 17, made at the same time together with the squeezing handle 18. The dog 17 is spring-loaded with a spring 19 made of an elastic, for example, steel strip, bent at an angle. The dog 17 and the spring 19 are placed in a cutout made in the middle of the slider 20, which is placed with the possibility of longitudinal movement in the groove 3 and to which, using fasteners, for example rivets 21, the left cover 22 and the right slider 23 are worn on the pad 1 with the ability to move along it. The left cover 22 is made in the form of a rectangular plate and is placed on the overlay 1 with an overlap with the upper and lower edges of the groove 3, that is, the left cover 22 overlaps the groove 3 in its width, while the upper edge of the left cover 22 completely covers the serrated recesses 16. On the left cover 22 and the right slider 23, the ends of the axis 24 are rigidly fixed (for example, by tight fit into pre-drilled holes), on which the spring-loaded dog 17 is rotatably placed between the left cover 22 and the right slider 23 in the groove 3. In the left cover 22 an auxiliary hole 25 is made through which the squeezing handle 18 of the dog 17 is brought out, while the auxiliary hole 25 is arranged to move the squeezing handle 18 in a direction opposite to the toothed recesses 16. The ends 26 and 27 of the right the slider 23 bend around the longitudinal edges of the lining 1 and are located on the side of the lining 1 facing the guide body 8 or the hook 11 in the absence of interaction with the lining 1. In the right slider 23 there is a support hole 28 with the possibility of the passage through it fully or partially of the hook 11 after passing through the extended end 4 of the lining 1. The hole 28 is called a reference, because after passing through it hooks 11, the right slider 23 interacts (you can say it contacts or abuts, rests) through the side walls and (in this example) this support hole 28 with lateral faces (in this example) of the bolt 7 or the hook 11, so that the right slider 23 can make only slight movements across the bolt 7, equal to the gap between the side surfaces of the support hole 28 and the side surfaces ( faces) bolt 7 when they are coaxial. The dog 17 can be spring-loaded from a flat elastic material, for example, sheet steel with elastic properties, and the end opposite the squeezing handle 18 is rigidly attached to the slider 20 in the manner shown in FIG. 16, while the squeezing handle 18 can be performed, for example, integral with the dog 17 or rigidly attached to it.

A device for limiting the angle of rotation of a leaf with a left cover and a reference hole in the right slider when used on a leaf opening outward is used as follows.

The cover 1 with a hinge 2 using fasteners 5 (screws or screws) is rigidly fixed to the leaf 6. On the jamb 15 using the fasteners 14 are rigidly fixed guide body 8 of the bolt 7 with the handle 10 and the hook 11 with the possibility of the latter passing through the extended end 4 the groove 3 in the lining 1 after turning the lining 1 around the hinge 2 until it touches the jamb 15 or the end of the guide body 8 (Fig. 1, Fig. 2). If it becomes necessary to open the sash 6 with a limited angle of rotation, the lining 1 is rotated around the hinge 2 until it is in contact with the jamb 15 or the end of the guide body 8, while the support hole 28 in the right slider 23 is located opposite the extended end 4 of the groove 3 and the hook 11 ( Fig. 4-8), to ensure that the structural unit from the left cover 22, the right slider 23, the slider 20 with the spring-loaded dog 17 and the squeezing handle 18 are previously moved to the corresponding position on the lining 1, and using the squeezing handle 18, and to facilitate the installation of this structural unit in the desired position on the cover 1 near the hinge mount 2, a protrusion (not shown in the drawings) can be made, in contact with which, for example, the right slider 23 provides the guaranteed placement of the support hole 28 opposite the extended end 4 of the groove 3 and the hook 11 when the lining 1 is in contact with the jamb 15 or the end face of the guide body 8. Then the bolt 7 by the handle 10 is moved along the guide body 8 to the exit atsepki 11 out through the enlarged end 4 of the groove 3 and the support hole 28 in the right slider 23, the handle 10 is moved to the end of the longitudinal hole 9 (Fig. 10, FIG. eleven). After that, the locks on the leaf 6 are opened (locks and an internal deadbolt, not shown in the drawings), they are pressed on the release handle 18, disengaging the spring-loaded dog 17 from the gearing recesses 16, and the leaf 6 is opened either for the entire length of the groove 3, or part of it, releasing the squeezing handle 18 in the desired position of the sash 6 (Fig. 3, Fig. 14). At the beginning of the rotation of the sash 6, the lining 1 with the longitudinal edges of the groove 3 engages with the protrusions 12 and 13 of the hook 11, so that the lining 1 is securely fixed on the bolt 7, thereby preventing the possibility of unauthorized entry into the room. In this position of the sash 6, the right slider 23 through the support hole 28 continues to be engaged with the side faces of the hook 11 or deadbolt 7, so that the dog 17 (spring-loaded or not spring-loaded) through the right slider 23 and the axis 24 is fixed on the hook 11 or deadbolt 7 , therefore, it can make insignificant movements across the bolt 7, extremely small in comparison with the length of the groove 3. When an attacker tries to jerk the sash 6 to the stop after it is previously slammed, the sash 6 or not open at all It occurs due to the penetration of the tooth of the dog 17 into the toothed recess 16, or it will move to a distance that is less than the pitch of the toothed recesses 16. And this will not lead to a strong impact, will not damage the device to limit the angle of rotation of the sash and will reliably prevent unauthorized entry into the room. If the dog 17 is not spring-loaded (in accordance with paragraph 1 of the claims, there is no spring 19 or the dog is made of inelastic material), then before opening the sash 6, the dog 17 is disengaged from the gear recess 16 by pressing the squeeze handle 18 down, if such engagement takes place, and then the sash 6 is opened either the entire length of the groove 3, or a part thereof, for which, in the required position, the sash 6 is pressed from the bottom up on the squeezing handle 18, engaging the dog 17 in engagement with one of the toothed recesses 16. In this case, i.e. and the pawl 17 is not biased to prevent a possible intruder by performing hammering sash 6 by means of its sharp collapse and opening needed during communication with a potential intruder constantly urge the bottom-up and extraction handle 18.

To return the lining 1 to its original state, in which it is leaned against the sash 6, and the sash 6 can be fully opened, it is necessary to perform the above steps in reverse sequence with the structural elements of the device to limit the angle of rotation of the sash with the left cover and the reference hole in the right slider.

Using the device to limit the angle of rotation of the sash with the left cover and the reference hole in the right slider for the sash opening inward is performed by the same sequence of actions as for the sash opening outward, with the difference that the cover 1 with the right slider 23, left the lid 22 and the rack and pinch ratchet through the hinge 2 with the help of fasteners 5 is rigidly attached to the jamb 15 with the left cover 22 towards the leaf 6, on which the guide rail is rigidly attached with fasteners 14 AA 8, wherein the bolt 7 is situated with the hook 11.

A device for limiting the angle of rotation of a leaf with a left cover and a reference hole in the right slider can be widely used for doors of residential premises opening both outside and inside, in order to prevent intruders from posing as law enforcement agencies, social and medical support, post offices, house managers, trade organizations, and so on.

A device for limiting the angle of rotation of a leaf with a left cover and a reference hole in the right slider can also be widely used for office doors, both external (entrance) and internal, in cases where, according to security regime rules, for example, for cash registers or weapon rooms, it is required to receive or issue rather large-sized correspondence or objects against receipt without passing into the premises of a courier, postman or employee of the organization.

Information sources

1. Notes on Class 05 in the International Patent Classification 2013, Advanced Level in XML, Website: http://www1.fips.ru/wps/portal/IPC/IPC2013_extended_XML/?xml=http://www1.fips.ru /IPC2013_extended_XML/AIpc-20130101_subclass-E_XML/Aipc20130101-class_E.xml.

2. GOST 23166-99 WINDOW BLOCKS.

3. GOST 27346-87 Hardware-hardware. Terms and Definitions.

4. Dictionary of the Russian language: In 4 volumes / Academy of Sciences of the USSR, Institute of Russian. language; Ed. A.P. Evgenieva. - 3rd ed., Stereotype. - M.: Russian language, 1985-1988.

5. Ozhegov S.I. Dictionary of the Russian language: approx. 57,000 words / Under. ed. Doct. filol. sciences, prof. N.Yu. Swede. - 14th ed., Stereotype. - M .: Rus. lang., 1982. - 816 p.

6. Encyclopedic Agricultural Dictionary-Reference: Ed. V.M. Malchenko. - M .: State. ed. agricultural. lit., 1959. - 1032 s.

7. Krainev A.F. Dictionary reference to mechanisms. - 2nd ed., Revised. and add. - M.: Engineering, 1987. - 560 p., Ill.

8. GOST 5091-78, Hardware accessories for wooden windows and doors, types. - M .: publishing house of standards. 1987.

9. Website: http://www.doorlock.ru/article/13.

10. RF patent for utility model No. 115392, E05C 17/00, published April 27, 2012.

11. Website: http://archie.com.ua/ru_c01_cepochka_dvernaja1.html.

12. RF patent for the invention No. 2563748, E05C 17/02, published September 20, 2015, Bull. No. 26.

13. Alexandrov A.V. Resistance of materials: Textbook. for universities / A.V. Alexandrov, V.D. Potapov, B.P. Derzhavin; Ed. A.V. Alexandrova. - 3rd ed. corrected - M .: Higher. school., 2003 .-- 560 p.: ill.

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Claims (3)

1. A device for limiting the angle of rotation of the sash with the left cover and a reference hole in the right slider, comprising a hook and a hinge plate with a groove having an expanded end facing the hinge, the hook being movable with the possibility of longitudinal movement and passage through the widened end of the groove, as well as with the possibility of subsequent engagement for at least one edge of the groove along its entire length when opening the sash, and on the pad with the possibility of moving along it, a right slider is put on with a support hole made with the possibility of passing through it fully or partially the hooks after it passes through the widened end of the longitudinal groove, characterized in that the plate is equipped with a ratchet gear containing at least one gear rack a recess in one of the longitudinal edges of the groove and a dog equipped with an squeezing handle, which can be squeezed out of the tooth recess and moved into the groove between the right slider and the left cover, size lapped on the pad with both longitudinal edges of the groove and connected to the right slider with the possibility of moving with it and the dog along the groove, while an auxiliary hole is made in the left cover or right slider through which the squeezing handle is withdrawn. 2. The device according to p. 1, characterized in that in the groove with the ability to move between the left cover and the right slider is placed and rigidly attached to them a slider with a cutout in which the dog is placed, mounted with the possibility of rotation on an axis fixed with its ends on the left the lid and the right slider, while the dog is spring-loaded relative to the slider towards the rack and is made at the same time as the squeezing handle protruding outward through the auxiliary hole made in the left lid, and the spring for the dog is made on from an elastic strip bent at an angle and placed in the cutout of the slider, and the gear rack is made with several toothed recesses, the left cover is made in the form of a rectangular plate, the hook with the possibility of engagement for both edges of the groove is made at the end of the bolt, on which the handle is rigidly fixed, the bolt with the possibility of longitudinal movement is placed in the guide body, in which a longitudinal well is made with the possibility of moving the handle of the bolt along it, the patch is made in the form of a plate, and the hinge in the form of a door or window hinge. 3. The device according to paragraphs. 1 and 2, characterized in that a springy dog is placed in the cutout of the slider, which is made of flat elastic material, and the end opposite the squeezing handle is rigidly attached to the slider.

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