EP0535299A1 - Inflating device, especially for a container or a float of a rescue apparatus - Google Patents

Abstract

In order that an inflating device (100), especially for inflating a container or a float of a rescue apparatus with compressed gas from a compressed-gas container (11), is safely put into operation in as simple a manner as possible and with few operating steps, which compressed-gas container (11) is closed by a diaphragm (14), has an external thread (13) in the area of the container neck (12) and can be screwed with the container neck (12) into a receiving opening (15) located in a housing (10) and provided with a corresponding internal thread (16) and the gas contents of which are released by opening the diaphragm (14) with an opening plunger (24) which is arranged in the housing and can be moved if need be via a hand lever and by the force of a spring element against the diaphragm (14), the spring element being held in a preloaded position by means of an automatic element (pellet) (22) losing its strength in water, provision is made for the compressed-gas container (11) to be screwed into the receiving opening (15) of the housing while at the same time preloading the spring element. <IMAGE>

Description

The invention relates to a device for inflating, in particular a container or a float of a rescue device with compressed gas from a compressed gas container closed with a membrane, which has an external thread in the region of the container neck and with the container neck in a receiving opening in a housing, which has a corresponding internal thread is provided, can be screwed in and the gas content is released by opening the membrane with an opening plunger arranged in the housing, which can be moved against the membrane by means of a hand lever and by the force of a spring element, the spring element in the prestressed position by means of a in the water automatic element losing its strength is maintained.

Automatic devices are known which consist of a base body into which the compressed gas bottle is screwed. In addition, there is a second, separate part, in which there is a spring element, which is tensioned by screwing or plugging together and gives the necessary impulse force to use a corresponding lever drive, after inserting a tablet that dissolves in the water, to insert a pointed plunger through the sealing membrane to drive, namely to open the pressurized gas bottle (DE-AS 27 15 132).

The momentum to be used here is relatively high. In addition, the pretensioning force must be dependent on the spring travel depending on the stroke of the pressurized gas cylinder opening tappet be pretty much tuned. If the case arises that the adapter sleeve is not fully screwed in, it can happen that the pressurized gas bottle is not opened or is only opened incompletely.

The compressed gas bottle must also be screwed in completely and with a certain preload to enable it to function properly. Vibrations or friction due to external influences must not impair the screwing of the pressurized gas bottle to the device body, since this could lead to detachment and thus impair safety.

The clamping sleeves for the spring element are separate parts which, when inserted, in particular in the event of a temporarily limited danger situation, are inadvertently lost or damaged or can be subject to contamination. These are all factors that jeopardize the safe functioning of such known automatics.

In contrast, it is an object of the present invention to put a device of the type mentioned at the outset into operation as simply as possible and with few operating steps. Furthermore, it should be possible to create only one housing part with the smallest possible dimensions, low weight and inexpensive manufacture in order to eliminate the above-mentioned disadvantages of known devices.

This object is achieved by the features characterized in protection claim 1.

The solution consists in that the prestressing of the spring element can be carried out at the same time by screwing the compressed gas container into the housing and that all the necessary functions can only be achieved directly and with screwing in the pressurized gas bottle. The fact that the screwing-in process of the pressurized gas bottle and the tensioning process of the device are combined ensures that sufficient tension is always achieved. The parallelism and linearity of the movement processes also ensures that friction is avoided and the highest release forces are achieved. Screwing in is only considered the simplest form of inserting the pressure bottle neck into the device opening. Pushing in and securing in the manner of the bayonet lock or pushing in and securing from the outside are effective with the specified screwing in.

In addition, the constant distance between the tip of the opening tappet and the diaphragm during the entire tensioning and screwing-in process ensures that the device works safely even when the compressed gas bottle is not fully screwed in, regardless of whether a lever drive and which lever drive is used.

According to a first embodiment, it is provided that a pressurized part is acted upon by the pressurized gas bottle as the pressurized gas container which tensions the spring designed as a compression spring. If the tension is now carried out by screwing in the compressed gas bottle, the device is always reliably tensioned when the compressed gas bottle is screwed in.

Furthermore, it is provided that the sliding part has a pocket-like receptacle for the automatic element at its end opposite the end face and that the pocket-like receptacle has an opening for supporting a central pin on the automatic element, the central pin when released by the automatic element under the action of the spring one striking end strikes the firing pin and causes the pressure gas container to open. This means that achievable that the voltage of the device is only possible when the automatic element is inserted. A warning is already given by the reduced torque when screwing in the compressed gas container. If it is then provided that the central bolt in the pretensioned position with its end opposite the impact end is led out of the housing to indicate the tension state, a display is achieved, for example, by a corresponding optical identifier of the bolt end, which indicates the correct tension of the device.

In a second embodiment it is provided that the spring is arranged between the sliding part and a first surface of a tensioning piston guided longitudinally displaceably in the housing in the longitudinal direction of the housing bore, and that a second surface of the tensioning piston opposite the first surface is pivotable on a two-armed, pivotable axis about a housing , two-armed lever is supported, and that the two-armed lever has a trigger arm and an actuating arm, the free end of the trigger arm in the region of a pocket-like Receiving space for the automatic element is sufficiently arranged and with the free end of the actuating arm a central bolt arranged in the housing bore and carrying the opening tappet can be acted upon, and that the second surface of the tensioning piston is supported on the two-armed lever via a tensioning lever which can be pivoted about a housing-fixed axis. This ensures that the deflection of the biasing force applied to the tensioning piston by the spring into the interior of the housing via the tensioning lever and the two-armed lever causes the latter to be deflected onto the central bolt, so that the two-armed lever is released around its housing by the automatic element Axis pivots and pushes or strikes the opening plunger arranged thereon through the opening membrane via the central bolt, so that the compressed gas can suddenly enter the interior of the housing. Furthermore, this arrangement has the advantage that it can be achieved that the voltage of the device is only possible when the automatic element is inserted. It is achieved through the design of the device that the reduced torque when screwing in the druok gas container will give a warning. If the pressurized gas bottle is then fully screwed in, the device may be triggered in such a way that the opening plunger pierces the membrane, so that an acoustic warning signal is also triggered. If necessary, devices are also provided which make it impossible to tension the device when the automatic element is not inserted. Advantageously, it is also provided that the central bolt in the pretensioned position with its end opposite the opening tappet bearing end is led out of the housing to indicate the tension state, for example by means of a corresponding optical identification of the bolt end, an indication is achieved that the correct tension of the device displays.

In a third embodiment, it is provided that a pressurized part is acted upon by the pressurized gas bottle as the compressed gas container, which tensions the spring designed as a compression spring. If the tension is now carried out by screwing in the compressed gas bottle, the device is always reliably tensioned when the compressed gas bottle is screwed in. By reversing the kinematics, the screw hole is pulled out of the housing, while the compressed gas bottle rotates when screwing in, without moving into the housing, but rests on the surface of the housing.

Furthermore, it is provided that the spring is arranged between a radial surface of the sliding part and a first radial surface of a tendon which is longitudinally displaceable in the housing in the longitudinal direction of the housing bore, and that a second radial surface of the tendon opposite the first radial surface is arranged on a two-armed, by one Housing-fixed axis pivotable, two-armed lever is supported, and that the two-armed lever has a trigger arm and an actuating arm, the free end of the trigger arm is arranged in the region of a pocket-like receiving space for the automatic element and with the free end of the actuating arm, the second radial surface of the tendon can be acted upon, wherein the tendon has a third radial surface opposite the first radial surface, with which a central bolt arranged in the housing bore and carrying the opening tappet can be acted upon. It is hereby achieved that the pretensioning force generated by the spring on the tendon and generated on the sliding part on the two-armed Lever is applied, which pivots the release of the two-armed lever by the automatic element about its axis fixed to the housing and releases the tendon, which pushes or strikes the opening plunger arranged thereon through the opening membrane, so that the compressed gas can suddenly enter the interior of the housing. Furthermore, this arrangement has the advantage that it can be achieved that the voltage of the device is only possible when the automatic element is inserted. It is achieved by the design of the device that a warning will already be given by the reduced torque when screwing in the compressed gas container. If the pressurized gas bottle is then fully screwed in, the device may be triggered in such a way that the opening plunger pierces the membrane, so that an acoustic warning signal is also triggered. If necessary, devices are also provided which make it impossible to tension the device when the automatic element is not inserted. Advantageously, it is also provided that the central bolt in the pretensioned position with its end opposite the end that carries the opening plunger is led out of the housing to indicate the tension state, for example by means of a corresponding optical identification of the bolt end, a display is achieved which indicates the correct tension of the Indicates device.

In a fourth embodiment of the device, the triggering mechanism for the opening plunger is controlled via the automatic element which loses its strength in the water, which is preferably arranged in the form of a tablet in the housing and interacts with two single-armed levers pivotably arranged in the housing, in such a way that that when dissolving the Automatic element of the spring-loaded opening plunger is released so that its tip pierces the membrane of the pressure vessel so that the pressurized gaseous medium is released. The use of two actuating levers, which work together with the automatic element, ensures that the lever, which directly interacts with the automatic element, is brought to the automatic element without friction when tensioned, in order to prevent premature damage to the automatic element or by reducing the friction to maintain the Strength of the automatic element is contributed in such a way that the automatic element can then fully develop when exposed to water, ie can lose its strength completely, in order to actuate the trigger mechanism for the opening plunger.

It is advantageous to use two one-armed levers, one of which acts as an actuating lever for the opening plunger and the other, which interacts with the automatic element, acts as a release lever. In this constructional design, only one of the two levers interacts with the automatic element, whereas both levers can be brought into a locking position, which will be discussed in more detail below. While one of the two levers acts as an actuation lever, the second lever has the function of a release lever which extends with its free end into the area of a pocket-like receiving space in the housing for the automatic element, while the release lever for locking with the release lever serves and works with a cross pin on the stem of the opening plunger, wherein the actuating lever is supported in the locking position with the release lever on the housing wall. This mutual locking between the actuating lever and the release lever is maintained until the actuating lever assumes a position in which the actuating lever does not stop on the housing and can thus pivot freely while simultaneously releasing the spring-loaded opening plunger. From the pressurized gas bottle as a compressed gas container, a sliding part is acted on in the device, which tensions the spring designed as a compression spring. If the tension is now carried out by screwing in the compressed gas bottle, the device is always reliably tensioned when the compressed gas bottle is screwed in. By reversing the kinematics, the screw hole is pulled out of the housing, while the compressed gas bottle rotates when screwing in, without moving into the housing, but rests on the surface of the housing. The tension spring is preferably arranged between a radial surface of a tension member guided longitudinally displaceably in the housing in the longitudinal direction of a housing bore formed therein, the tension member being designed such that a central bolt arranged in the housing bore and supporting the opening tappet can be acted upon. This ensures that the biasing force generated by the spring on the tendon is applied to the actuating lever, which pivots when the release lever is released by the automatic element about its axis, while the tendon is released, which is released via a central pin the one on it arranged plunger pushes or strikes through the opening membrane, so that the compressed gas can suddenly enter the interior of the housing. The arrangement in this device is then preferably such that it can be achieved that the device can only be tensioned when the automatic element is inserted. Furthermore, it is provided that the central bolt in the prestressed position is led out of the housing with its end opposite the end of the shaft carrying the opening plunger to indicate the tension state, this end, for example, having an identifier, such as a corresponding optical identifier, being led out of the housing or is provided with a color coating to visibly indicate to the outside that there is or is a correct tension.

In a fifth embodiment of the device, the triggering mechanism for the opening plunger is controlled via the automatic element which loses its strength in the water, which is preferably arranged in the form of a tablet in the housing and interacts with a one-armed lever pivotably arranged on a tensioning element, in such a way that that when the automatic element is released, the spring which is held under prestress via a stroke axis arranged on the lever is released when the lever is pivoted, so that it strikes two contact arms of the central bolt and moves it with the opening plunger arranged thereon, so that the tip of the membrane of the pressure vessel penetrates so that the pressurized gaseous medium is released. By using the lever of the release lever and the lifting axis, which work together with the automatic element, ensures that the lever, which interacts directly with the automatic element, is brought to the automatic element without friction when tensioned, in order to prevent premature damage to the automatic element or by reducing the friction to maintain the Strength of the automatic element is contributed in such a way that the automatic element can then fully develop when exposed to water, ie can completely lose its strength in order to actuate the trigger mechanism for the opening plunger.

It is advantageously provided that in the section of the housing bore there is arranged a central bolt which carries the opening tappet and which has at least one contact arm which projects at right angles to the direction of movement of the opening tappet and can be acted upon by the spring when the device is triggered. The use of the lever as a trigger element and the central pin as an actuating element ensures that only the lever interacts directly with the automatic element, while the spring can act directly on the opening plunger without deflection.

Furthermore, it is provided that the tendon has an angled, arm-like attachment part in which a chamber, cavity, recess or the like. is designed to receive the automatic element, which has an inlet opening for the contact section of the one-armed lever, the lever acting as a release arm when released by the automatic element via the lifting axis the spring releases and the spring, acting on the central bolt, causes the membrane of the compressed gas container to open.

As a result, any friction during tensioning is avoided by the joint movement of the lever and the automatic element.

It is also provided that a cover part rotatably arranged about an axis fixed to the housing has a cover plate covering the receiving chamber for the automatic element in a basic position and for insertion of an automatic element the receiving chamber can be freely pivoted into a pivoted-out position and that the cover part has a locking arm which is in a tensioned basic position of the device when the compressed gas container is not screwed into a locking arm receptacle in the extension part can be pivoted. This ensures that incorrect operation of the device is practically excluded. It is only possible to fill the receiving chamber when the compressed gas container is unscrewed, as a result of which the user is required to replace the possibly empty container. If, after filling, the tension of the device would be forgotten by screwing in the compressed gas container, the automatic element cannot be seen since it is still covered. Furthermore, it is provided that the central bolt in the pretensioned position is led out with its end opposite the end of the shaft carrying the opening tappet from the housing for indicating the tension state, with this end, for example, being led out of the housing an identifier, such as a corresponding optical identifier or with a color coating, in order to visibly indicate that there is or is a correct voltage.

It is therefore possible to control all functions.

In order to simplify the assembly of the device, it is advantageously provided that the section of the housing bore in which the tendon is guided is closed to the outside with a clamping body which has the stop surface for the spring on the housing side.

In all embodiments it is provided that the receiving chamber provided for the automatic element in the housing is provided with a pressure compensation ventilation opening and with a water inlet opening.

Overall, a device is thus created that is just as simple and reliable.

Advantageous refinements and expedient further developments are characterized in the subclaims.

Fig. 1

in einer senkrechten Schnittdarstellung eine Vorrichtung zum Aufblasen,

Fig. 2

in einer teilweise geschnittenen Darstellung eine weitere Ausführungsform der Vorrichtung,

Fig. 3 bis 6

vier weitere Ausführungsformen der Vorrichtung in entsprechenden Darstellungen,

Fig. 7

eine weitere Ausführungsform der Vorrichtung,

Fig. 8 - 10

eine weitere Ausführungsform der Vorrichtung in drei Betriebsstadien, und

Fig. 11 - 15

in Seitenansichten einzelne Elemente der Vorrichtung gemäß Fig. 8-10.

Embodiments of the invention are explained below with reference to the drawings. Show it

Fig . 1

in a vertical sectional view a device for inflation,

Fig . 2nd

in a partially sectioned representation a further embodiment of the device,

Fig . 3 to 6

four further embodiments of the device in corresponding representations,

Fig . 7

another embodiment of the device,

Fig . 8-10

a further embodiment of the device in three operating stages, and

Fig . 11-15

in side views individual elements of the device according to FIGS. 8-10.

1 shows a device 100 for inflating a floating body, not shown in the drawing, of a rescue device, also not shown, with compressed gas, namely in longitudinal section, the left half of the section showing the device in the untensioned state with the compressed gas container not screwed in, while the right half shows the device with a compressed gas container 11 screwed into the housing 10. The compressed gas container 11, which is designed as a compressed gas bottle, is provided in the region of the container neck 12 with an external thread 13 and closed by means of a membrane 14. In a housing bore 15, which is provided in its upper part with an internal thread 16 and in the end area with a seal 16a and which can be connected via a branch duct 17 and an air connection piece indicated at 17a to a rescue device, not shown, to be inflated, the displacement part 18 arranged, which is designed as a sleeve and with its one end face 19 extends into the region of the upper part of the housing bore 15 with the internal thread 16 and is thus acted upon by the end face 14a of the container neck 12 when the compressed gas container 11 is screwed in. At the opposite end 20 of the sliding part 18 is a pocket-like receptacle 21 for the automatic element 22, which is usually designed as a tablet 122 that disintegrates in the water. The receptacle 21 is located in an enlarged part 23 of the housing bore 15, so that the sliding part 18 is held captively in the housing 10.

In the sliding part 18, which is designed as a sleeve, the opening plunger 24 is slidably mounted relative to the sliding part 18, which in its basic position extends into the region of the end face 19 of the sleeve and is pushed out of the sleeve 18 through the membrane 14 by the central bolt 25 can. The central pin 25 is arranged in the enlarged section 13 of the housing opening 15 so that when the automatic element 22 disintegrates, it moves through the opening 26 in the interior 27 of the sleeve with its striking end 28 hitting the end of the opening plunger 24 against the membrane 14. The central pin 25 has in its area assigned to the impact end 28 an intermediate plate 29 corresponding to the cross section of the enlarged part 23, on which a compression spring 30 is supported, which is supported on the housing 10 at the same time. The arrangement of the between plate 29 and the compression spring 30 is such that when the central bolt moves in the screwing-in direction of the compressed gas container 11, the compression spring 30 is compressed and prestressed. Since the compressed gas container 11 moves the sliding part 18 in the screwing direction when screwing in, this acts on the central bolt 25 via the automatic element 35, which in turn is displaced in the screwing direction, so that the compression spring 30 is preloaded, as shown in the right part of FIG. 1.

The function is as follows. In the unclamped operating position of the device shown in the left part of FIG. 1, the intermediate plate 29 is supported on a shoulder 31 in the enlarged part 23 of the housing bore 15. As shown in the right-hand part of FIG. 1, when the compressed gas container 11 is screwed into the housing bore 15 via the sliding part 18, which, like the opening plunger 24, which acts as a firing pin, is also supported on the receiving housing 21 of the automatic element 35, the intermediate plate 29 pressed down, and this biases the compression spring 30. The central pin 25 now bears against a tablet inserted through an opening 32 as an automatic element 35 in the receptacle 21.
When the pressurized gas bottle 11 is screwed into the internal thread 16, the sliding part 18 and thus the opening plunger 24 are displaced downward on the receiving housing 21, so that the spring 30 is tensioned. The free end 33 of the central bolt 25 opposite the striking end 28 protrudes through an opening 34 from the lower housing base of the housing 10 when the pressurized gas bottle 11 is completely screwed in and serves as an optical control element in order to make the ready position of the device recognizable. If the tablet 122 disintegrates due to the penetration of water through the opening 32 in the housing 10, the central pin 25 can push the opening plunger 24 upwards within the sliding part 18, so that the tip of the opening plunger 24 penetrates through the closure membrane 14 of the compressed gas container 11 and opens it. so that the gas from the pressurized gas bottle can pass through a slot 22 in the displacement part 18 into the branch duct 17, which is connected to the floating body, not shown, in a known manner.

Another embodiment of the device is shown in FIG. All the essential features correspond to the device 100 described above, but the sliding part 18a is not arranged as a sleeve within the housing opening 15, but surrounds it and also protrudes from the housing 10. The compressed gas container 11 is provided with a recess ring 60, specifically on the container neck 12 above the external thread 13, which acts on the sliding part 118 when screwing in. This is moved in the screw-in direction by screwing in and thus prestresses the compression spring 30.

Due to the ratio of the diameter of the thread, the compressed gas bottle and the gas chamber housing, it is possible that a high preload can be achieved with little manual effort. The pretensioning force continuously presses on the threaded connection of the housing and the compressed gas bottle, so that loosening due to vibrations or other external influences is avoided.

In Fig. 3, a device 110 for inflating a float, not shown in the drawing, of a rescue device, also not shown, with compressed gas is shown, namely in longitudinal section, the left half of the section showing the device in the untensioned state with the compressed gas container not screwed in, while the right half shows the device with a compressed gas container 11 screwed into the housing 10. The compressed gas container 11, which is designed as a compressed gas bottle, is provided in the region of the container neck 12 with an external thread 13 and by means of a membrane 14 closed. In a housing bore 15, which is provided in its upper part with an internal thread 16 and in the end area with a seal 16a and which can be connected via a branch duct 17 and an air connection piece indicated at 17a to a rescue device, not shown, to be inflated, the displacement part 118 arranged, which is designed as a sleeve and extends with its one end face 19 into the region of the upper part of the housing bore 15 with the internal thread 16 and is thus acted upon by the end face 14a of the container neck 12 when the compressed gas container 11 is screwed in.

The sliding part 118, which is guided in the housing bore 15 so as to be longitudinally displaceable and is secured against falling out of the housing 10 via a shoulder 120 in the housing bore 15, is supported by a spring 121 with respect to a tensioning member 122 which is also longitudinally displaceable in the housing bore 15, the Spring 121 is arranged between a radial surface 123 of the sliding part 118 and a first radial surface 124 of the clamping bolt 122. The surface 125 opposite the first radial surface 24 of the cylindrical clamping element 122 can be supported on the free end piece 126 of a clamping lever 127 pivotable about an axis 128 fixed to the housing. The axis 128 perpendicular to the longitudinal axis L of the housing bore 15 lies outside the housing bore 15, while the free end 126 projects into the housing bore 15 in such a way that there is contact between the free end 126 of the tensioning lever 127 and the surface 125 of the tensioning member 122. Below the tensioning lever 127 is a two-armed lever 130 which can be pivoted about an axis 129 fixed to the housing arranged, the axis 129 is arranged parallel and at a distance from the axis 128 of the clamping lever 127 in the housing. The lever 130 has two arms, namely a trigger arm 131 and an actuating arm 132, which enclose an angle alpha, which in the exemplary embodiment is approximately 160 ^° , and any other angle alpha is also possible if the following function is fulfilled. The free end 133 of the trigger arm 131 extends into the area of a pocket-like receiving space 134 for the automatic element 35, which is usually designed as a tablet that disintegrates in water. The pocket-like receiving space 134 has a closable insertion opening 136 for the automatic element 35, the automatic element 35 being supported by a closure which is only indicated. When the device 110 is tensioned, the free end 133 of the trigger arm 131 is supported on the automatic element 35, while the free end 137 of the actuating arm 132 projects into the housing bore 15.

In the sliding part 118, which is designed as a sleeve, the opening plunger 138 is displaceably arranged relative to the sliding part 118, which in its basic position extends to the area of the end face 19 of the sleeve 118 and is arranged on a central bolt 139 with which it can be integral . The central pin 139 is arranged axially parallel to the longitudinal axis L of the housing bore 15 in this and passes through the clamping member 122, in which it is slidably guided. The central bolt 139 lies in the tensioned state of the device with a lower surface 140 opposite the opening plunger 138 on the free end of the actuating arm 132, the free surface 140 also being able to be designed as a shoulder of the central bolt 139 if the central bolt is led out of the housing 10 with its end to form a display device. The two-armed lever 130 is further provided with an additional arm or cam 141 which bears against a stop 142 which is formed on the tensioning lever 127, the arrangement of the cam 141 and the formation of the stop surface 142 being selected such that the contact of the Cam 141 on the stop 142 is maintained even when the tensioning lever 127 is pivoted about its axis 128 under the action of the spring 121 via the tensioning element 122 via a corresponding path in order to pivot the two-armed lever 130 about the axis 139 in a clockwise direction if it is is released by the automatic element 35.

In addition, a pivot lever 143 is only indicated in Fig. 3, which is pivotable about a housing-fixed axis 144 and which rests with a cam 145 parallel to the free end 137 of the actuating arm 132 on the surface 140 of the central pin 139 and which with a known and in the drawing, not shown, hand lever for manual triggering is connected.

The function of the device 110 is as follows. When screwing in the device 110 shown untensioned in the left part of FIG. 3, the sliding part 118 is displaced in the screwing-in direction, as shown in the right part of FIG. 3, and thus prestresses the spring 121, which is on the tensioning piston that has not been displaced during the insertion process 120 is supported. The tensioning member 122 rests on the tensioning lever 127, which in turn is supported via its stop surface 142 on the cam 141 of the two-armed lever 130. This is with its trigger lever 131 is supported on the automatic element 35, while the actuating lever 132 acts on the central pin. The opening plunger 138 is arranged on the central bolt 139 and its tip lies directly in the area of the membrane 14. If the tablet forming the automatic element 35 disintegrates through the penetration of water through an opening (not shown) into the receiving space 134, the two-armed lever 130 can pivot clockwise about the axis 129, the pivoting path being made possible by the opening 134a penetrating through the trigger arm 131. When the two-armed lever 130 is pivoted, which occurs suddenly due to the intended sudden disintegration of the automatic element 35, the free end 137 of the actuating arm 132 actuates the central bolt 139, so that the tip of the opening plunger 138 penetrates through the closure membrane 14 of the compressed gas container 11 and opens it , so that the gas from the pressurized gas bottle can enter the housing opening 15 and through a slot 146 in the displacement part 118 into the branch duct 17, which is connected to a floating body, not shown, in a manner known per se. Both the sliding part 118 and the tensioning member 122 are provided with corresponding sealing rings 147, 148 which bear against the wall of the housing opening 15, in order to prevent the compressed gas from inadvertently escaping from the device or into other spaces of the device.

After unscrewing the pressurized gas bottle 11, the starting position shown in the drawing in the left part is then set again, with a spring not shown in the drawing between the housing 10 and the two-armed lever 130 whose starting position shown in the drawing can be brought about, so that problem-free insertion of the tablet as an automatic element 35 is made possible.

Another embodiment of the device is shown in FIG. 4. All the essential features correspond to the device 110 described above, but the sliding part 118 is not arranged as a sleeve within the housing opening 15, but rather surrounds it and also protrudes from the housing 10. The compressed gas container 11 is provided with a recess ring 60, namely on the container neck 12 above the external thread 13, which acts on the sliding part 118 when screwing in. This is moved in the screwing direction by screwing in and thus pre-tensions the compression spring.

Due to the ratio of the diameter of the thread, the pressurized gas bottle and the gas chamber housing, it is possible that a high preload can be achieved with little manual effort. The pretensioning force continuously presses on the threaded connection of the housing and the compressed gas bottle, so that loosening due to vibrations or other external influences is avoided

5 shows a further embodiment of the device 200 for inflating a floating body, not shown in the drawing, of a rescue device, also not shown, with compressed gas, namely in a longitudinal section, the left half of the section showing the device in the untensioned state shows not screwed-in compressed gas container, while the right half shows the device with a compressed gas container 11 screwed into the housing 10. The compressed gas container 11, which is designed as a compressed gas bottle, is provided in the region of the container neck 12 with an external thread 13 and closed by means of a membrane 14. In the area of a housing bore 15 having a recess 15b in the housing outlet region 15a, which can be connected via a branch duct 17 and an air connection piece indicated at 17a to a rescue device, not shown, to be inflated, the displacement part 218 is arranged, which is designed as a sleeve, which is in its upper Part is provided with an internal thread 16, and with its one end face 19 protrudes beyond the region of the housing surface 15a surrounding the housing bore 15 and is pulled out of the housing when the compressed gas container 11 is screwed into the sleeve 218, the end surface 14a of the compressed gas container then 11 rests on the surface 15b of the retraction when screwing in.

The sliding part 218, which is guided longitudinally displaceably in the housing 10 in a corresponding recess 218a and is secured against slipping into the housing 10 via a shoulder 220 in the housing bore 15, is connected via a spring 221 to a tensioning member 222 which is likewise longitudinally displaceable in the housing bore 15 supported, the spring 221 being arranged between a radial surface 223 of the displacement piece 218 and a first radial surface 224 of the tensioning member 222. The tensioning element 228 consists of a disk-shaped head 226 with the first surface 224 and a surface 224a lying opposite it and a shaft 227 with a stop-like shoulder 228 formed thereon.

Arranged beneath the head 226 is a two-armed lever 230 which can be pivoted about an axis 229 fixed to the housing, the axis 229 of which is arranged parallel and at a distance from the longitudinal axis L of the housing bore 215 in the housing 210. The lever 230 has two arms, namely a trigger arm 231 and an actuating arm 232, which form an angle alpha to one another, which in the exemplary embodiment is approximately 160 ^° , wherein any other angle alpha is also possible if the following function is fulfilled. The free end 233 of the trigger arm 231 extends into the area of a pocket-like receiving space 234 for the automatic element 35, which is usually designed as a tablet that disintegrates in water. The pocket-like receiving space 234 has a closable insertion opening 236 for the automatic element 35, the automatic element 35 being supported via a closure which is only indicated. When the device 200 is tensioned, the free end 233 of the trigger arm 231 is supported on the automatic element 35, while the free end 237 of the actuating arm 232 projects into the housing bore 15 and rests on the surface 228 when the device is tensioned.

In the housing bore 15, the opening plunger 238 is displaceably arranged relative to the housing bore 15, which in its basic position extends into the area of the internal thread 16 in the sleeve 218 and is arranged on a central bolt 239 with which it can be integral. The central pin 239 is arranged axially parallel to the longitudinal axis L of the housing bore 15 in this and passes through the clamping member 222, in which it is slidably guided. The central pin 239, which consists of a head part 240 carrying the opening plunger 238 and a sliding part mounted in the tensioning member 222 Shaft 241 is in the tensioned state of the device with a lower, the opening plunger 238 opposite radial surface 242 at a distance from the surface 224a of the head portion 226 of the clamping member 222, the surfaces 224a, 242 meet when triggered. The shaft 227 of the tensioning member 222 has at its free end the free radial surface 228, which can also be designed as a shoulder if the end of the central bolt is led out of the housing 10 to form a display device and on which the free end of the actuating arm lies on.

In addition, a pivot lever 243 only indicated in FIG. 5 is provided, which is pivotable about an axis 244 fixed to the housing and which rests with a cam 245 on the lower surface 246 of the central bolt 239 and which is used for manual triggering with a known hand lever, not shown in the drawing connected is.

The function of the device 200 is as follows. When screwing in the device 200 shown untensioned in the left part of FIG. 5, the sliding part 218 is displaced counter to the screwing-in direction, namely pulled out a little from the housing 10, as shown in the right part of FIG. 5, and thus prestresses the spring 221 which is supported on the tension member 220 which has not been displaced during the insertion process. The tensioning member 222 is supported by the shoulder 228 on the two-armed lever 230. This is supported with its release lever 231 on the automatic element 35, while the actuating lever 232 holds the tensioning member 222. On the Central pin 239 is arranged the opening plunger 238, which lies with its tip 38a directly in the area of the membrane 14. If the tablet forming the automatic element 35 disintegrates through the penetration of water through an opening (not shown) into the receiving space 234, the two-armed lever 230 can pivot clockwise about the axis 229, the pivoting path being made possible by the opening 234a penetrating through the trigger arm 231. When the two-armed lever 230 is pivoted, which occurs suddenly due to the sudden disintegration of the automatic element 35, the free end 237 of the actuating arm 232 releases the tensioning member 222, so that the tensioning member 222 strikes the central bolt 239 and the tip of the opening plunger 238 passes through the sealing membrane 14 of the compressed gas container 11 penetrates and opens it, so that the gas from the compressed gas bottle into the housing opening 15 and through a slot (not shown in the drawing) in the displacement part 218 can enter the branch duct 17, which with a floating body (not shown) in itself is connected in a known manner. In this case, both the sliding part 218 and the tensioning member 222 are provided with appropriate sealing rings, in order to prevent the compressed gas from inadvertently escaping from the device or into other spaces of the device.

After unscrewing the compressed gas bottle 11, the starting position shown in the drawing in the left-hand part is then set again, the starting position shown in the drawing being able to be brought about by the spring 246 between the housing 10 and the opening plunger 239, so that the tablet can be inserted without problems Automatic element 35 is made possible.

Another embodiment of the device is shown in FIG. 6. All the essential features correspond to the device 200 described above, but the sliding part 218 is not arranged as a sleeve within the housing opening 15, but rather surrounds it and also protrudes from the housing 10. The compressed gas container 11 is provided with a recess ring 60, specifically on the container neck 12 above the external thread 13, which acts on the sliding part 218a when screwing in. This is moved in the screwing direction by screwing in and thus pre-tensions the compression spring.

Due to the ratio of the diameter of the thread, the pressurized gas bottle and the gas chamber housing, it is possible that a high preload can be achieved with little manual effort. The pretensioning force continuously presses on the threaded connection of the housing and the compressed gas bottle, so that loosening due to vibrations or other external influences is avoided.

7 shows a further embodiment of the device 300 for inflating a floating body, not shown in the drawing, of a rescue device, likewise not shown, with compressed gas. The pressurized gas container that can be inserted into the housing 10 of the device 300 is designated by 11.

The compressed gas container 11, which is designed as a compressed gas bottle, is provided in the region of the container neck 12 with an external thread 13 and is closed by means of a membrane 14. In a housing bore 15 which has an internal thread in its upper part 16 is provided and which can be connected via a branch duct 17 and in an air connection piece arranged at 17a to an inflatable rescue device, not shown, the sliding part 318 is arranged, which is designed as a sleeve and with its one end face 19 into the area of the upper part the housing bore 15 extends with the internal thread 16 and is thus acted upon by the container neck 12 when the compressed gas container 11 is screwed in, although a different design and arrangement is also possible.

The sliding part 318, which is longitudinally displaceable in the housing 10 in a corresponding recess 15a, is secured against slipping through in the housing 10. A corresponding stop provided in the housing is indicated at 320. Furthermore, the sliding part 318 is supported on a clamping member 322 which is guided in a longitudinally displaceable manner in a section 15b in the housing bore 15.

A first one-armed lever 323 is articulated on the tensioning member 322 as an actuating lever so that it can be pivoted about the pivot axis indicated at 324. The two ends of the one-armed lever 323 are designated 325 and 326. This lever 323 is supported at an upper end 327 on a spring 321, the spring 321 being supported at 328 at the bottom in the housing 10. The upper end region of the spring 321 is guided in an inner cavity 329 of the tensioning piston 322, and the upper end 327 passes through and is guided in an elongated hole 330 which extends in the longitudinal direction in a central bolt.

At its free end 326, the lever 323 has a first nose-shaped section 331 running in the direction of the compressed gas container 11 and angled towards the lever 323; Furthermore, a second nose-shaped section 332 is formed on the free end 326 of the lever 323 in an extension of the central longitudinal axis of the lever, which section 333 is inclined or curved in the direction of the nose-shaped section 331 as a stop surface for a second one-armed lever pivotably articulated on the housing 10 324 is provided. The free end of the nose-shaped section 331 of the lever 323 is designed as an arcuate stop surface which, in the untensioned state of the device 300, bears against a surface 334 of the housing 10, as shown in the drawing.

The second one-armed lever 334 as a release lever is likewise articulated on the tensioning member 322 at approximately the pivot point of the nose-shaped section 331 of the lever 323, the pivot axis being indicated at 335. The two pivot axes 324 and 335 of the two levers 323, 334 lie approximately in one plane when the individual parts of the device 300 are shown in the drawing.

The lever 334 assumes an approximately parallel position with the central bolt 339 carrying the opening plunger 338. The two ends of the lever 334 are designated 336a, 336b. At its free end 336, the lever 334 lies in the area of the automatic element 35. The lever 323 with its stop surface 333 of its nose-shaped section 332 lies against one another Lever 323 facing longitudinal side wall 337a of the lever 334 formed nose-shaped portion 337a. Furthermore, the lever 334 is provided in the region of its free end 336b with a longitudinal recess 337b facing the automatic element 35. The nose-shaped sections 331, 332 and 337a of the two levers 323, 334 can also be designed as cams. The nose-shaped sections 337a and 332 of the two levers 323, 334 interact with one another in such a way that a type of locking or locking, as shown in the drawing, is possible.

The function of the device 300 is as follows:
When the pressure vessel 11 is screwed into the release mechanism, the sliding part 318 and thus at the same time the tensioning member 322 is preferably moved downwards by approximately 8 mm. The spring 321 is tensioned. The mandrel 328a of the opening plunger 338 penetrating the membrane 14 is held back by a spring 340 so that the mandrel 338a cannot inadvertently drill into the compressed gas container 11. After triggering, the same spring 340 returns the mandrel 338a to its initial position, so that after the membrane 14 is pierced, the pressurized gas or compressed air can flow out of the compressed gas container 11 and reach the branch duct 17 via the slot 341 and the annular space 342 .

In the untensioned state of the device, the upper nose-shaped section 331 of the lever 323 bears against the housing 10 at 343, so that its force is transmitted to the opening plunger 338.

During tensioning, the lower free end 336b of the lever 334 is smoothly guided to the automatic element 35 by a trapezoidal section 344 formed on the housing 10, this trapezoidal section 344 lying in the movement or feed path of the lever 334. This trapezoidal section 344 prevents the lever 334 from rubbing against the automatic element 35 when tensioned, e.g. friction is prevented. The triggering tolerance when the automatic element 35 disintegrates is preferably 1 mm in the area in which both levers 323, 334 are operatively connected with their nose-shaped sections 331, 337a. This area is indicated in the drawing at 345. Any output of the automatic element 35, which is in tablet form, is thus prevented.

In the sliding part 318, which is designed as a sleeve, the opening plunger 338 is displaceably arranged relative to the sliding part 318, which in its basic position extends with its mandrel 338a into the region of the end face 19 of the sleeve 18 and is arranged on a central bolt 339 with which it can be in one piece. The central pin 339 is arranged axially parallel to the longitudinal axis L of the housing bore 15 in this and passes through the tensioning piston 322, in which it is slidably guided. The central bolt 339 lies in the tensioned state of the device with a lower surface 339a opposite the opening plunger 338 on the free end of the actuating arm 350, the free surface 339a also being able to be designed as a shoulder of the central bolt 339 if the central bolt has its end towards Formation of a display device is led out of the housing 10.

During tensioning, the opening plunger 338 and the central pin 339 are pressed down so far that the shaft 347 of the central pin 339 with a section 348 protrudes from the lower region of the housing 10, so that the identifier attached to this section 348, e.g. in the form of a color coating, is clearly recognizable.

In order to allow the shaft 347 of the central bolt 339 to emerge from the lower region, the end of the shaft 347 is provided with a slot-shaped recess 349 in order to be able to slide past the axis 351 of a lever 350.

The force of the spring 321 is transmitted via the elongated hole 330 on the central pin 339 and on the lever 323. The lever 323 is prevented from moving upward by the lever 334 via the interlocking nose-shaped portions 331, 337a.

After the disintegration of the automatic element 35, the free lower end 336b of the lever 334 can move in the direction of the automatic element 35 arranged in a chamber, a cavity or a recess 10a in the housing 10, the lever 323 then being released at the same time, which is then released moved upwards and at the same time allows the spring-loaded central bolt 339 to spring upwards. The central pin 339 presses the mandrel 338a of its opening plunger 338 upwards by approximately 4 mm (compression path), a region of approximately 2 1/2 mm piercing the membrane 14 of the compressed gas container 11, so that the tip 338a of the Opening plunger 338 penetrates through the sealing membrane 14 of the compressed gas container 11 and opens it, so that the gas from the compressed gas container 11 into the housing opening 15 and through the slot 341 and the annular space 342 in the sliding part 318 into the branch duct 17, which can be connected to a not shown Float is connected in a conventional manner. Here, the sliding part 318 is provided with corresponding sealing rings 360 lying on the wall of the housing opening 15 in order to prevent the compressed gas from inadvertently escaping from the device or into other spaces of the device.

The elongated hole shown at 330 in the drawing in the area of the spring end 327 is required for manual release, since otherwise the central pin 339 cannot be moved.

The chamber 10a for the automatic element 35 can be formed in the housing 10 of the device 300. Care must then be taken to ensure that the chamber 10a is accessible via a closable filling opening for inserting the automatic element 35. The chamber 10a is provided with a pressure compensation ventilation opening 10a ′ and with a further opening 10a ″, through which water can penetrate into the chamber in the direction of arrow X in order to be able to act on the automatic element 35.

In the embodiment shown in the drawing, the chamber 10a for the automatic element 35 is arranged in a drawer-like part 352, which is held, for example, by means of a clamp fit in a recess formed in the housing 10. This part 352 carries the trapezoidal section 344 on its side facing the lever 334 and can be snapped into the housing 10 at 353.

The compression path, which is approximately 4 mm, is indicated in the drawing by means of the arrows X1, X2. The section indicated by the arrows X3, X4 is the clamping path, which is approximately 8 mm.

8 to 10 show a further embodiment of the device 400 for inflating a floating body, not shown in the drawing, of a rescue device, likewise not shown, with compressed gas. 11 to 15 show the corresponding essential parts. The pressurized gas container that can be inserted into the housing 10 of the device 400 is designated by 11.

The compressed gas container 11, which is designed as a compressed gas bottle, is provided in the region of the container neck 12 with an external thread 13 and is closed by means of a membrane 14. In a housing bore 15, which is provided with an internal thread 16 in its upper part, and which can be connected via a branch duct 17 and in an air connection piece arranged at 17a to an inflatable rescue device, not shown, the sliding part 418 is arranged, which is designed as a sleeve and with its one end face 19 extends into the area of the upper part of the housing bore 15 with the internal thread 16 and thus when the pressure gas container 11 is screwed on, the container neck 12 acts upon it, although a different design and arrangement is also possible.

The sliding part 418, which is longitudinally displaceable in the housing 10 in a corresponding recess 15a, is secured against slipping through in the housing 10. A stop provided accordingly in the housing is indicated at 420. The spring, the arrangement of which will be explained later, is designated 421. Furthermore, the sliding part 418 is supported on a clamping member 422 which is guided in a longitudinally displaceable manner in a section 415b in the housing bore 15 and with which it can be fixedly connected or in one piece.

A first single-armed lever 423 is pivotably articulated on the one end on the tensioning member 422, in such a way that this lever 423 can be pivoted about the pivot axis indicated at 424. The two ends of the one-armed lever 423 are designated 425 and 426. At its free end 426, the lever 423 lies in the area of the automatic element 35. The tensioning member 322 has an eccentric arm-like extension 427 which is angled downwards and which, in the area of its free end 428, acts as a chamber, cavity, recess or the like. trained receiving chamber 429 for the automatic element. The receiving chamber is provided with a lateral opening 430 so that a contact section 431 of the free end 426 of the lever 425 can rest against the automatic element 35. The receiving chamber 429 is the same as that in the section 15b slidable tendon 422 slidable. In this displacement area of the receiving chamber 429, the housing 10 is provided with a window-like cutout 432 (FIG. 8a).

The lever 423 has in the vicinity of its upper end 425, but at a distance from the axis of rotation 424, an opening 433 through which the lifting axis 434 is guided with the shaft 434a, at the two ends 435,436 of which the annular or cylindrical support parts 437,438 are arranged which are supported on the compression spring 421. The opening 433 is designed in the manner of an elongated hole in order to enable the lever 423 to move with the lifting axis.

The central pin 439 is displaceable in the tensioning element 322 and slidably guided therein. The central pin 439 is arranged coaxially to the longitudinal axis L of the housing bore 15 therein and passes through the tensioning member 422. The opening plunger 440, which carries the mandrel 441 for piercing the membrane 14, is in with its actuating plunger 442, which is arranged opposite the mandrel 441 a receiving opening 443 of the central pin 439 is inserted and carried by the latter. The opening plunger 440 is provided with an annular flange 444 on which a spring 445 is supported.

The mandrel 441 of the opening plunger 440 penetrating the membrane 14 is held back by a spring 445, so that the mandrel 441 cannot inadvertently drill into the compressed gas container 11.

The same spring 445 brings the mandrel 441 back into its initial position after the triggering, so that after the membrane 14 is pierced, the pressurized gas or compressed air can flow out of the compressed gas container 11 and reaches the branch duct 17 via the slot 446 and the annular space 447 . O-rings 448, 449 are arranged on the opening tappet 440 above and below the annular space 447 for sealing.

The central pin 439 has in the area of the receiving opening 443 two laterally projecting contact arms 450, 451 against which the spring 421 rests when the device 400 is triggered and moves the central pin 439 upward. The central pin 439 has a downwardly widening section 452 which merges into a guide part 453 which is guided into a lower section 15c of the housing bore 15. A slot-shaped indentation 454 is formed in the guide part 453. On the one hand, this serves to allow the central bolt to slide past a nose-like or cam-like projection 457 of a one-armed hand lever 455 which can be pivoted about a shaft 456 fixed to the housing. During tensioning, the opening plunger 440 and the central pin 439 are pressed down so far that the central pin 439 protrudes with a section 453a from the lower region of the housing 10, so that the identifier attached to this section 453a, for example in the form of a color coating, is clearly recognizable. On the other hand, the bottom 454a of the recess 454 forms the contact surface for the projection 457 when the hand lever 455 is pivoted outward in the counterclockwise direction for manual triggering and by means of the projection 457 raises the central bolt 439 so that the opening plunger 440 is pierced with the mandrel 441 in the membrane 14.

It is provided for assembly reasons that the section 15c of the housing bore 15 by a screw connection or the like. fastened clamping body 458 is closed, which has the contact surface 10a for the spring and an opening 10b for the exit of the section 453a. The axis 456 is also arranged on this. The clamping body 458 has an annular body 459 which bears against the housing wall of the section 415b as a stop for the tensioning member 422 in order to enable the spring 421 to be pretensioned. For this purpose, an elongated hole 460, which extends parallel to the longitudinal axis L and is open at the bottom on the one end, extends over the lifting axis 434 in the tensioning member 422. During a downward movement of the tensioning element 422 due to the screwing in of the compressed gas container 11, the tensioning element 22 presses the spring 421, which rests against the housing stop 10d, via the elongated hole 460 and the lifting axis 434 until the tensioning element hits the annular body 459 with the stop surface 461. The distance between the stop surface 461 and the ring body 459 shown in FIG. 8 corresponds to the displacement path of the tensioning member 422.

Outside the range of movement of the tensioning member 422, a cover part 463 is arranged rotatable about an axis 462 fixed to the housing. A cover plate 465 is fastened to this cover part 463, which can be pivoted out of the housing 10 through an opening 464 through an opening 464, or in one piece with the cover part 463, which, in a position not pivoted out, covers the cover part 463 Sliding area of the receiving chamber 429 is arranged so as to overlap, so that the cover plate 465 can be seen when looking through the cutout 432. This has a viewing area 466 which is dimensioned and arranged such that an automatic element 35 inserted into the receiving chamber 429 can only be seen when the device 400 is tensioned, ie only when the tensioning member 422 is in its lower position.

The viewing area 466 can be designed as a window, it can also be provided that the material, preferably plastic, is dimensioned so thin at this point that there is a possibility of viewing.

The cover part 463 also has a nose, mandrel or cam-like locking arm 467. This can be pivoted with the cover part 463, but its pivoting path is only released if the device 400 is not in the tensioned state. For this purpose, a locking arm receptacle 468 is formed on the side of the extension part 427 above the receiving chamber 429, in which the locking arm can be freely pivoted.

The function of the device 400 essentially corresponds to the devices explained above and is as follows:
First, the cover part 463 is pivoted into the position shown in broken lines in FIG. 8, so that the cover plate 465 releases the receiving chamber 429.

A tablet is inserted into this as a new automatic element 35. The receiving chamber 429 is then closed by pivoting the cover part 463 into the position shown in FIG. 8, in which the cover plate 465 then covers the receiving chamber 429. The view area 466 only enables the view into an area into which the automatic element is only moved when the device is tensioned.

The pivoting of the cover part is only possible in this position of the tensioning element 422 shown in FIG. 8, in which the device 400 is still untensioned and the tensioning element 420 is in its upper position, which is delimited by the end of section 15b, and which Locking receptacle 468 is exactly opposite the locking arm 467 of the cover part 463, so that the cover part can be freely pivoted.

When the pressure container 11 is screwed in, the release mechanism moves the sliding part 418 and thus at the same time the tendon downwards. The tensioning member 422 takes the lifting axis 434 downward over the end region of the elongated hole 460 (FIG. 11). This moves down over its support parts 437, 438, which rest on the compression spring 421 designed as a spiral spring, so that the spring 421 is compressed and tensioned. The mandrel 441 provided for the penetration of the membrane 14 is pressed downward by the spring 445, so that the mandrel 441 of the opening plunger 440 cannot inadvertently drill into the membrane 14 of the compressed gas container 11.

The central pin 439 is also moved downward, so that the guide part 453 guided in the housing opening 10b is also moved downward and the section 453a is visible in the window-like cutout indicated in FIG. 9a at the opening 10b.

Due to the displaceable arrangement of the receiving chamber 429, the contact section 431 at the end 426 of the lever 423 is already in contact with the automatic element 35 even in the untensioned state. During tensioning, the lever 423 and the automatic element are therefore moved together and simultaneously downwards, so that no friction occurs here. Any abrasion of the automatic element 35, which is in tablet form, is thus prevented.

The compressed gas container 11 is screwed in until the stop surface 461 strikes the ring body 459, which forms a housing edge, so to speak, and further screwing in of the compressed gas container and thus further tensioning is no longer possible. The device is then in the prestressed position shown in FIG. 9. In this position, the locking receptacle 468 is advantageously moved out of the pivoting range of the locking arm 467, so that the locking arm 467 bears firmly against a stop edge on the tensioning member 422 and thus pivoting of the cover part 463 to open the device is no longer possible. The receiving chamber 429 is now located under the viewing area 466 of the cover plate 465, so that the automatic element 35 can be seen from the outside through the window-like cutout 432 of the housing 410 and the viewing area 466, as a result of which it can be determined whether and that an automatic element is correctly inserted into the device 400. At the same time, section 453a indicates that the device is properly tensioned.

It is provided that the lever arm 423 swings out under the action of the spring 421 in the untensioned state of the device if the cover part 463 is closed without an automatic element 35 having been inserted. In this case, it is then provided that the lever 423 blocks the screwing-in process, so that the compressed gas container 11 cannot be screwed in.

Incorrect operation is therefore impossible.

After the disintegration of the automatic element 35, the free lower end 428 of the lever 423 can move into the position shown in FIG. 10, as a result of which the lifting axis 434 is then moved upwards and the support parts 437, 438 release the spring 421. These then meet the system arms 450, 451 of the central pin 439 and let it skyrocket. The central pin 439 then moves the opening plunger 440 upward, so that the mandrel 441 pierces the membrane 14 of the compressed gas container 11, so that the gas flows out of the compressed gas container 11 and flows into the housing opening 15 and through the slot 446 into the annular space 447.

From here, the compressed gas then flows into the branch duct 17, which is connected at 17a to a floating body, not shown, in a manner known per se. Here, the sliding part 418 is provided with corresponding sealing rings 448, 499, which bear against the wall of the housing opening 15a, in order to prevent the compressed gas from inadvertently escaping from the device or into other spaces of the device.

In order to bring the device 400 into an operational state, it is first necessary that the compressed gas container 11 is unscrewed. The cover part 463 can then be pivoted into the position shown in FIG. 8, the locking arm 467 simultaneously acting on the lever 423 and pivoting it out of its pivoted-out position shown in FIG. 10 into the position shown in FIG which it is possible to arrange an automatic element 35 in the receiving chamber 429, which then immediately abuts the contact section 431.

When the device is in its pretensioned state shown in FIG. 9, the device can be triggered by pulling on the hand lever 455 in the direction indicated by the arrow in FIG. 9a, since then the projection 457 into the recess 454 of the guide section 453 engages and at the bottom 454a strikes the central bolt 439 upwards and thus pierces the mandrel 441 in the membrane 14. The sequence that follows corresponds to the sequence for automatic triggering.

Overall, the device is designed so that malfunctions are excluded. It is also always possible to check the voltage status. The individual functions can also be easily implemented using slightly different parts. It is e.g. possible to design the cover part not as a swivel part, but as a cylindrical rotating part, which also has a corresponding locking arm and a cover area.

In all of the embodiments, a metallic spiral spring has been provided as the spring element, the spring element being understood as the element to be referred to as the main spring element for displacing the opening plunger into the membrane. However, it is possible to provide a different type of spring element instead of the metallic spiral spring, which likewise takes up the potential for triggering the device. A pneumatic accumulator is just as conceivable as a hydraulic accumulator, because the only thing that matters is that the potential for triggering, i.e. for piercing the membrane of the compressed gas container can be stored permanently.

The central pin is designed as a central indicator and indicates that the cartridge is screwed in correctly, i.e. up to the stop and that the automatic is tensioned, i.e. the overall function is given. The indicator disappears automatically or manually when triggered. Furthermore, the construction is such that the print cartridge must be unscrewed to open the holder for the tablet.

Claims (31)

Device (100, 110; 200; 300; 400) for inflating, in particular a container or a float of a rescue device with compressed gas from a compressed gas container (11) closed with a membrane (14), which has an external thread (13) in the region of the container neck (12) has and with the container neck (12) in a receiving opening (15) in a housing (10), which is provided with a corresponding internal thread (16), can be screwed and its gas content by opening the membrane (14) with a in the housing ( 10) arranged opening plunger (24) is released, which can be moved against the diaphragm (14) by a hand lever and by the force of a spring element, the spring element in a prestressed position by means of an automatic element (tablet) losing its strength in the water (tablet) ( 22; 35) is held,
characterized,
that the pressurized gas container (11) can simultaneously be screwed into the receiving opening (15) of the housing (10) in a prestressing manner. Device according to claim 1,
characterized,
that a spring (30; 121; 321; 421) can be tensioned as a spring element via a sliding part (18; 118; 318; 418) which acts on the spring (30; 121; 321; 421) and is displaceably guided in the housing (10) and that the sliding part (18; 118; 318; 418) when screwing in the Compressed gas container (11) from an initial position in the biasing direction of the spring (30; 121; 321; 421) is displaceable by the compressed gas container (11). Device according to claim 2,
characterized,
that during a screwing and tensioning process, the sliding part (18; 118; 318; 418) can be acted upon with an end face (19) from the compressed gas container (11) via the front edge (14a) of the compressed gas container (11) surrounding the membrane (14) and can be displaced in the screw-in direction (E) by at least part of the screw-in path of the compressed gas container (11). Device according to claim 2,
characterized,
that during a screwing and tensioning process the sliding part (18; 118; 318; 418) can be acted upon by a ring (60), pin, cam or surface area of the compressed gas container (11) and by at least part of the screwing path of the compressed gas container (11) in Screwing direction (E) is displaceable. Device according to one of claims 2 to 4,
characterized,
that the sliding part (18) has at its end (19) opposite end (20) a pocket-like receiving housing (21) for the automatic element (22). Device according to claim 5,
characterized,
that the pocket-like receiving housing (21) has an opening (26) for supporting a central pin (25) on the automatic element (22), the central pin (25) when released by the automatic element (22) under the action of the spring (30) one opening end (28), acting on the opening plunger (24), causes the opening of the membrane (14) of the compressed gas container (11). Device according to one of claims 2 to 6,
characterized,
that the opening plunger (24) and the central pin (25) in the sliding part (18) are guided to be longitudinally displaceable. Device according to one of claims 6 or 7,
characterized,
that the spring (30) is designed as a compression spring and is supported on both sides of the housing (10) in the starting position. Device according to one of claims 2 to 4,
characterized,
that the spring (121) is arranged between the sliding part (118) and a first surface (124) of a tendon (122) which is longitudinally displaceably guided in the housing (10) in the longitudinal direction (L) of the housing bore (15), and that one of the first surface (124) opposite second surface (125) of the tendon (122) is supported on a two-armed, two-armed lever (130) which is pivotable about an axis (129) fixed to the housing. Device according to claim 9,
characterized,
that the two-armed lever (130) has a trigger arm (131) and an actuating arm (132), the free end (133) of the trigger arm (131) being arranged in the region of a pocket-like receiving space (134) for the machine element (35) and the free end (137) of the actuating arm (132) can be acted upon by a central bolt (139) arranged in the housing bore (15) and supporting the opening plunger (138), and in that the second surface (125) of the tensioning piston (122) has a about a housing-fixed axis (128) pivotable clamping lever (127) is supported on the two-armed lever (130). Device according to claim 10,
characterized,
that the pocket-like receiving space (134) has an opening (134a) for supporting the release arm (131) on the automatic element (135), the release arm (131) acting on the actuating arm (132) when released by the automatic element (134) The spring (121) acting on the central bolt (139) causes the membrane (14) of the compressed gas container (11) to open. Device according to one of claims 1 to 4,
characterized,
that the receiving opening (15) of the housing (10) is formed in the sliding part (218) and that in a screwing and tensioning process inside the housing opening (15) the housing surface (15b) can be acted upon by the compressed gas container via the front edge (14a) of the compressed gas container (11) surrounding the membrane (14) and the sliding part by at least part of the screw path of the compressed gas container (11) against the screwing direction (E) emerges from the housing. Device according to claim 12,
characterized,
that during the screwing and tensioning process, the housing surface (15a) can be acted upon by a ring (60), pin, cam or surface area of the compressed gas container (11) and the sliding part by at least part of the screwed-in path of the compressed gas container (11) against the screwing-in direction (E) is emerging from the housing. Device according to one of claims 12 or 13,
characterized,
that the spring (221) between a radial surface of the sliding part (218) and a first radial surface (224) of a longitudinally displaceable in the housing (10) of the housing bore (15) tension member (222) is arranged, and that a second radial surface (225) of the tensioning element (222) opposite the first radial surface (224) is supported on a two-armed lever (230) which can be pivoted about an axis (229) fixed to the housing. Device according to claim 14,
characterized,
that the two-armed lever (230) has a trigger arm (231) and an actuating arm (232), the free end (233) of the trigger arm (231) being arranged in the region of a pocket-like receiving space (234) for the machine element (35) and the free radial end (237) of the actuating arm (232) can be applied to the second radial surface of the tensioning element, the tensioning element having a third radial surface opposite the first radial surface, with which the opening plunger (15) arranged in the housing bore (15) and the opening tappet ( 238) carrying central bolt (239) can be acted upon. Device according to claim 15,
characterized,
that the pocket-like receiving space (234) has an opening (234a) for supporting the trigger arm (231) on the automatic element (35), the trigger arm (231) via the actuating arm (232) when released by the automatic element (234) under the action the spring (221) acts on the tensioning element (222), which acts on the central bolt (239) with its third radial surface (224a), which causes the membrane (14) of the compressed gas container (11) to open. Device according to one of claims 2 to 4,
characterized,
that the sliding part (318) on one in a section (15b) of the housing bore (15) displaceably guided tensioning element (322) is supported in such a way that a first one-armed lever (323) is articulated on the one side on the tensioning element (322) and which is connected to the shaft (347) of one of the opening tappets (338). supporting central bolt (339) provided end piece (327) of the spring (321) can be acted upon and which has at its free end a first nose-shaped section (331) extending in the direction of the compressed gas container (11) and angled towards the lever longitudinal axis (323a) and an extension of the has a central nose longitudinal axis (323a) extending second nose-shaped section (332) with a sloping or arcuate section (333) in the direction of the first nose-shaped section (331) as a stop surface for a second one-armed lever (334) pivotably articulated on the sliding part (318) , wherein the free end of the first nose-shaped portion (331) of the first lever (323) as an arcuate stop surface is formed, which is in the untensioned state of the device on a surface (343) of the housing (10) that the second one-armed lever (334) on the sliding part (318) approximately at the point of articulation of the first nose-shaped section (331) of the first lever (315) is articulated, assumes an approximately parallel position to a central bolt (339) carrying the opening plunger (338) with a shaft (347) and lies with its free lower end in the area of the automatic element (35), the first lever (323) with its abutment surface of its second nose-shaped section (332) bears against the longitudinal side wall of the second lever (334) facing the first lever (323) with a nose-shaped section (337a) formed towards the automatic element (35), that when screwing in the compressed gas container (11) while simultaneously tensioning the spring (111), the tensioning member (322) is moved by a range, preferably by 8 mm, in the direction of the automatic element (35) and from the lower region of the housing (10) with visualization an identified with a shaft portion (348) is brought out, and that when the automatic element (35) disintegrates, the free end of the second lever (334) towards the automatic element (35) receiving chamber, cavity, recess or the like. (10b) of the housing (10) is pivoted while simultaneously releasing the first lever (323), the opening tappet (338) with its mandrel-like upper end (338a) being simultaneously moved into the pressurized gas container (11) to release the pressurized gas. Device according to claim 17,
characterized,
that the housing (10) is provided on its wall facing the lever (334) with a trapezoidal section (334). Device according to one of claims 17 or 18,
characterized,
that the receiving chamber (10a) for the automatic element (35) is arranged in a drawer-like part (352) which, by means of a clamp fit or other suitable, releasable connecting means, such as screws, locking elements or the like, in a in the housing (10) is formed, the insertion part (352) carries on its wall facing the lever (334) a trapezoidal section (344). Device according to one of claims 2 to 4,
characterized,
that the sliding part (418) is supported on a tensioning member (422) which is displaceably guided in a section (415b) of the housing bore (15), that on the tensioning member (422) a first one-armed lever (423) is pivotably articulated on one end, which on its The other, free end (428) has a contact section (431) for the automatic element (35), and which has a perforation (433) penetrated by a lifting axis (434) at a distance from both ends (425, 426), the lifting axis (434 ) consists of a cylindrical shaft (434a) arranged in the opening with support parts (437,438) arranged on both sides, and that the spring (421) in a non-triggered state of the device (400) between the support parts (437,438) and a contact surface (10d ) of the housing (10) is arranged. Device according to claim 20,
characterized,
that in the section (15b) of the housing bore (15) a central bolt (439) carrying the opening plunger (440) is arranged, which protrudes at least one at right angles to the direction of movement (L) of the opening plunger (440), in the event of triggering of the device (400) the spring (421) acted upon arm (450,451). Device according to claim 20 or 21,
characterized,
that the tendon (422) has an angled, arm-like extension (427) in which a chamber, cavity, recess or the like. (429) is designed to receive the automatic element (35), which has an inlet opening (430) for the contact section (431) of the one-armed lever (423), the lever (423) being the trigger arm when released by the automatic element (35) the stroke axis releases the spring and the spring acts on the central pin (439) and opens the opening of the membrane (14) of the compressed gas container (11). Device according to one of claims 20 to 22,
characterized,
that a cover part (463) rotatably arranged about an axis (462) fixed to the housing has a cover plate covering the receiving chamber (429) for the automatic element (35) in a basic position (465) and for the insertion of an automatic element (35) the receiving chamber (429) can be freely pivoted into a pivoted-out position. Device according to claim 23,
characterized,
that the cover part (465) has a locking arm (467) which can be pivoted into a locking arm receptacle recess (468) in the attachment part (427) in a tensioned basic position of the device (400) when the compressed gas container (11) is not screwed in. Device according to claim 23 or 24,
characterized,
that the cover plate (465) has a see-through area (466) in the form of a thin section of material or a transparent window or the like. which is in the tensioned position of the device in the area of the automatic element (35). Device according to one of claims 20 to 25,
characterized,
that the housing (10) has a window-like cutout (432) in the region of the receiving chamber (429) for the automatic element (35) for inserting the automatic element (35) and for viewing and looking through the viewing area (466) of the cover plate (465) . Device according to one of the preceding claims,
characterized,
that the sliding part (18; 118; 218; 318; 418) is designed as a sleeve. Device according to one of the preceding claims,
characterized,
that the opening plunger (138; 238; 338) with the central pin (139; 239; 339) in the tendon (122; 222; 322) are guided to be longitudinally displaceable. Device according to one of the preceding claims,
characterized,
that the spring (121; 221; 321) is designed as a compression spring and is supported in the starting position on the sliding part (18; 118; 218; 318) and on the tendon (122; 222; 322). Device according to one of the preceding claims,
characterized,
that the central pin (139; 239; 339; 439) in the pretensioned position of the device with its end opposite the opening plunger is led out of the housing through the opening to indicate the tension state. Device according to one of the preceding claims,
characterized,
that the automatic element (35) receiving chamber, cavity, recess or the like. is provided in the housing (10) with a pressure compensation ventilation opening and with a water inlet opening.

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