FR2535817A1 - TAP, IN PARTICULAR FOR CHALUMEAU - Google Patents

Abstract

TAP, ESPECIALLY FOR TORCH. THE CONTROL CREW SHAPED BY THE FLYWHEEL 18 AND THE TRIGGER 23 IS GLOBALLY POSITIONED ON THE BODY 10 OF THE VALVE BY THE EFFECT OF AN ELASTIC MEANS 28 WHICH TEND TO KEEP THE RING 25 APPLIED CENTERALLY IN GENERAL SUPPORT ON THE REACH 26. THIS CREW CAN BE TILTED INTO A BLOCK FOR OPENING UNDER THE ACTION OF THE TRIGGER 23 AND AGAINST THE RESISTANCE OF THE ELASTIC MEANS 28, THE COLLAR 34 BEING ALLOWED TO STAY FROM THE REACH 26, WITH THE EXCEPTION OF A LOCALIZED CONTACT ZONE C FORMING A TILTING SUPPORT.

Description

2535 E 17

1 1

  The present invention relates to a faucet

  ment for a blow torch, having a body in which is

  a fluid passage of which at least a part is defined

  denuded by a bore with a shoulder forming an

  nular, a shutter member engaged sliding in said bore, so as to be closable and remote said

  seat under the action of a command crew.

  The valves of the type in question are sometimes double-controlled and, in this case, this crew generally comprises, on the one hand, a steering wheel which makes it possible to adjust the pilot flame of the torch and, on the other hand an actuating trigger which, in relaxed position, allows operation in nightlight and, in depressed position, allows operation-at large

  The advantage of such a provision is that the manipulators

  triggering, however many, do not change the

  do not trust the pilot setting.

  In addition, the control wheel allows you to close

  the valve and, if necessary, lock the trigger

  in a locked position, the valve being closed.

  In general, in valves of this type, the flywheel and the trigger are mounted separately and, most often, the trigger is pivotally mounted on the body around

  a pivot axis perpendicular to the axis of the hole

cevant the shutter member.

  One of the objects of the present invention is a faucet

  dual control including torch whose construction

  tion is simplified, in particular by the choice of a

  This valve has the remarkable property of having a usable body, in a standard way, as well with a dual control at the steering wheel and the trigger.

  flywheel and trigger, with a simple steering wheel control.

  According to the invention, a valve of the type indicated above is characterized in that the control unit comprises, on the one hand, a control wheel adapted to act in thrust on the shutter member for closing and, d on the other hand, an actuating trigger secured to a bush in which the flywheel is mounted screwed, said bushing having a flange which bears on an annular bearing surface of the body at the inlet of said drilling under the action of a elastic medium

  interposed between this flange and an annular span op-

  placed arranged on a bell attached to the body, said crew being positioned generally on the body by the effect of the elastic means which tends to maintain the collar applied centrally in general support on the body surface, said crew being tiltable block for the opening under

  the action of the trigger and against the resistance of the elastic

  tick, the collar being allowed to deviate from the reach of the body with the exception of a localized area of contact forming

a tipping support.

  Thanks to this provision, the construction is simpli-

  because the trigger assembly and steering wheel assembly

a rocking block.

  According to another characteristic, means are

  seen to prevent the trigger from rotating in either direction around the axis of the steering wheel For this purpose, the trigger in the general shape of inverted gutter is allowed to cap a

  tenon arranged on a handle integral with the body of the tap.

  According to another characteristic, the bushing is

  due to the trigger, on the one hand axially through a stop of the socket on the trigger and a crimping of the sleeve on the trigger, -and, on the other hand, angularly, by local depression of the crimping of the sleeve in at

  less a trigger recess.

  According to yet another characteristic, the lifting stroke of the collar during the operation of the trigger for the opening is defined by a stop. The latter preferably consists of an inner annular shoulder.

of the bell.

  It should be noted that at the point of

  tact is provided between the steering wheel and the shutter member, it is appropriate that the conditions of this contact are such that during the operations of screwing or unscrewing the steering wheel, the tendency of the shutter member to be rotated by the steering wheel is reduced so that the shutter member remains angularly stationary, while during the actuation of the trigger, which involves a tilting, the tendency of the shutter member to be moved laterally is also reduced and in any case limited to a lateral stroke of

negligible value.

  For this purpose, according to another characteristic of the invention, the upper surface of the shutter member which defines a contact zone with the flywheel is provided close to the bearing surface of the body for the collar This allows

  in particular a compact construction with an economy of

  SPECT. Preferably, the flywheel acts in contact on the upper surface of the shutter member by a nose harder than the latter 8 for example in the form of a ball which is allowed to dig in operation a small bowl in the upper surface of the shutter member In this case to minimize

  the driving effect of the shutter member during

  In this case, it is planned to locate the center of the ball in a coplanar plane with the bearing surface of the body for the flange when the trigger is halfway between

  the open position and the closed position.

  In one embodiment, the resilient means comprises a coil spring extending between the socket and the bell, while the flywheel comprises, firstly, a central threaded rod by which it is screwed into the socket and which cooperates pushing on the shutter member, on the other hand, a peripheral gripping ring surrounding a portion of the trigger which is close to the sleeve This part of the

  trigger close to the sleeve has two jupesconcentri-

  spaced an inner skirt which is attached to the

  socket and an outer skirt that surrounds the bell and it-

  even surrounded by the peripheral gripping ring of the

wheel.

  In a preferred embodiment, the body reach

  on which the collar of the bushing is supported is de-

  finished by an annular boss of the body on which the bell

  is screwed for attachment to the body.

  Preferably, the shutter member cooperates with the valve seat by deforming effect of an O-ring made of elastomeric material which is carried by the shutter member and which comes into application against the seat, which is made of rigid material and has advantageously a conical shape, said

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  seat with one or more local depressions that allow a small pilot flow when the gasket touches the seat but is clogged to allow full closure when the gasket is pressed against the seat. The valve according to the invention has, in addition, the remarkable property of being usable as well with a dual control with flywheel and trigger as it comes from

  be indicated, with a simple steering wheel control, ie

say in the absence of trigger.

  In this case, for such use, the steering wheel is directly screwed into a member having a general shape of inverted annular gutter and replacing in itself the

  bell and the socket, the elastic means being removed.

  Whether the control is double or simple, the steering wheel cooperates

  advantageously in thrust with the shutter member by the

  intermediate of a ball, while this shutter member is recalled in opening by a spring bearing on the body

and placed opposite the steering wheel.

  However, in a simplified version, the price of which

  return is reduced, it is planned to mount the obturator-

  directly in a manner integral with the steering wheel and, in this case, the shutter member is free of return spring.

  Another object of the present invention is such a novel

  a single control valve, in which the shutter member is

  solidarity with the steering wheel and is allowed to rub directly

  on the seat of the tap Such operating conditions

  may have caused premature wear, but experience has shown that, surprisingly, the valve behavior remains satisfactory during a period of service.

acceptable.

  Preferably, in this simplified version, the flywheel carries a radial veil which facilitates the maneuver and indicates

  at every moment the position in which the tap is located.

  Embodiments of the invention are hereinafter described, by way of example, with reference to the accompanying drawings in which:

  FIG. 1 is a diagrammatic view, in longitudinal section,

2 535817

:

  of a torch having a dual control valve followed by

  the invention, the valve being closed, the trigger being not locked in the locked position; Figure 1A is a partial view in cross-section along the line IA-IA of Figure 1; Figure 2 is a view similar to Figure 1, but in which the valve is open in the pilot position; FIG. 3 is a view similar to FIG. 1 or FIG.

  Figure 2 but in which the valve is open to great de-

  bit by actuating the trigger; Figure 4 is a view similar to one of the preceding figures but in which the valve is closed, while the trigger is itself locked in the locked position; Figure 5 shows, on a larger scale, the rocking mounting of the sleeve on the body, the trigger being in the closed position; Figure 6 is a view similar to Figure 5 but in which the trigger is in the half-open position; Figure 7 is a view similar to Figure 5 or Figure 6 but in which the trigger is in the fully open position; Figure 8 shows, also on an enlarged scale, the shutter member and the seat in a low flow position; Figure 9 is a view similar to Figure 8 but wherein the shutter member is in the fully closed position; Figure 10 shows in perspective the seat with its localized depressions adapted to allow the pilot flow; Figure 11 is a view of a variant in which the control is simple instead of being double;

  Figure 12 relates to another variant which is analogous

  which is shown in Figure 11 but in the-

  which construction is simplified.

  reference will first be made to FIGS. 1 to 10 which relate to an application of the invention to a dual-control valve

for torch.

  The valve comprises a body 10 which is secured to the

253581?

  handle P of the torch and in which is formed a passage

  of fluid 11 At least a portion 12 of this passage 11 is de-

  finished with a hole The hole 12 is provided with a shoulder

13 forming an annular seat.

  A shutter member 14 is slidably engaged in the bore 12 so as to be movable and displaceable from the seat 13 under the action of a control unit generally

designated by 15.

  The shutter member 14 has a generally cylindrical shape and laterally comprises an O-ring seal 16 and

  door near its lower end a seal

  only in elastomeric material 17 (FIGS. 8 and 9) which cooperates with the seat 13 In the example shown, this seat 13 is conical

and is in rigid material.

  The shutter member 14 cooperates with the seat 13 of the rocker

  binet by deformation effect of the O-ring 17 which comes into application against the seat 13 It has one or more local depressions 49 which pass a small pilot flow (Figure 8) when the seal 17 touches the seat 13 but which are sealed to allow complete closure (Fig. 9) when the seal 1-7 is compressed against the

seat 13.

  The control crew 15 (FIGS. 1 to 4) comprises an adjusting wheel 18 The steering wheel 18 has a central threaded rod 19 and a peripheral gripping ring 20 The steering wheel 18 acts as a thrust on the shutter member 14 for the

  closure and this by means of its central rod 19 through

  The shutter member 14 is

  opening by a spring 22 bearing on the body 10 and

placed opposite the steering wheel 18.

  The control crew 15 also comprises an actuating trigger 23 which is secured to a bush 24 in which the steering wheel 18 is screwed by its central stem

threaded 19.

  Means are provided to prevent the trigger 23 from rotating, in either direction, about the axis of the flywheel 18 For this purpose, the trigger 23, in the general shape of inverted gutter (Figures 1 and 1A ) is allowed to cap a post 41 formed on the handle P.

253581;

  The bushing 24 (FIG. 1) is made integral with the trigger 23, on the one hand axially by virtue of a stop 42 of the bushing 24 on the trigger 23 and on a crimping 43 of the bushing 24 on the trigger 23 and on the other angularly part by local depression 44 of the crimping 43 of the sleeve 24

  in one or more recesses 45 of the trigger 23.

  The bushing 24 has a collar 25 which bears on an annular bearing surface 26 of the body 10 at the inlet 27 of the bore 12 under the action of an elastic means 28 interposed between the collar 25 and an opposite annular bearing surface 29 formed on a bell 30 fixed to the body 10 O the elastic means 28 comprises a coil spring which extends concentrically between the sleeve 24 and the bell 30. Note that the peripheral gripping ring of the flywheel 18 surrounds a portion 31 of the trigger 23 which

is next to the socket 24.

  This portion 31 of the trigger 23 which is adjacent to the sleeve 24 has two concentric spaced skirts: an inner skirt 32 which is fixed to the sleeve 24, and an outer skirt 33 which surrounds the bell and itself surrounded by

  the peripheral gripping ring 20 of the steering wheel 18.

  It will also be noted that the bearing 26 of the body 10 on which the flange 25 of the bushing 24 bears is defined by an annular boss 34 of the body 10 on which the bell 30 is allowed to be screwed in 35 for fixing it

to the body 10.

  With such a construction the crew 15 is positioned overall on the body 10 by the effect of the elastic means 28 which tends to maintain the flange 25 applied centrally in general support on the bearing 26 of the body 10 This crew 15 is switchable block for opening under one action of the trigger 23 and against the resistance of the elastic means 28 g the collar 25 being allowed to deviate from the scope 26 of the body 10 with the exception of a localized area of

  contact C (Figure 3) forming a tilting support.

  The lifting stroke (FIGS. 3 and 5 to 7) of the flange 25 when the trigger 23 is actuated for the opening is defined by a stop consisting of a shoulder.

  inner ring 46 of the bell 30.

  It should be noted that at the location of the thrust (FIGS. 1 to 7) of the flywheel 18 on the shutter member 14 where contact is provided (FIGS. 5 to 7), the conditions of this contact should be such that only during screwing maneuvers

  and unscrewing the steering wheel 18, the tendency of the obturator

  14 to be rotated by the flywheel 18 is

  reduced so that the shutter member 14 remains stationary angu-

  while while triggering 23,

  which involves a tilting, the tendency of the organ

  14 to be moved laterally is also reduced and

  in any case limited to a lateral course of negligible value.

geable.

  For this purpose, the upper surface 47 of the obturator

  14, which defines a zone of contact with the flywheel 18 is provided close to the bearing surface 26 of the body 10 for the flange 25 This allows a compact construction

with a saving of material.

  Preferably, the flywheel 18 acts in contact with the sur-

  upper face 47 of the shutter member 14 by a nose harder than this, for example in the form of the ball 21 which is allowed to dig in operation a small bowl 48 in the upper surface 47 of the shutter member 14 to minimize the driving effect of the shutter member 14 during the tilting of the trigger 23, it is expected to locate the center O of the ball 21 in a coplanar plane L with the bearing surface 26 of the body 10 for the flange 25 when the trigger 23 is halfway (Figure 6) between the position

  opening (Figure 7) and the closed position (Figure 5).

  When you do not use the torch, you screw

  18 to the bottom (Figure 4), which has the effect, on the one hand, to apply the shutter member 14 closing on the seat 13 and, on the other hand, to raise the sleeve 24 carrying the trigger 23, up to the stop of the flange 25 against the shoulder 46 of the bell 30, which has the effect of blocking this trigger 23, placing it in a condition where it is

impossible to maneuver.

  In order to use the torch, the flywheel 18 is released to release the trigger 23 and FIGS. 1 and 9 show the valve in a condition of complete closure of the shutter member 14 on the seat 13, but o the trigger

  23 is released and can be manipulated at will.

  From this position of Figures 1 and 9, it is

  just put the faucet in a position where the night light

is set.

  For this purpose 2 the steering wheel 18 is slightly opened and the pilot flame is ignited and, by turning or unscrewing the steering wheel 18, it is possible to adjust this pilot, the seal 17 o flush with the seat 13 and passing a small flow through depressions 49 (Figures 8 and 10) Such a setting is made once and for all Therefore, if we do not press the trigger 23 the torch presents the pilot flame and

  if, on the other hand, the trigger 23 is pressed,

  the control assembly 15, which has the effect of opening the valve in large and to achieve the full flow When releasing the trigger, the valve returns to the position of

  night light o the night light stays on.

  We will appreciate the simple and convenient construction of the rock

binet according to the invention.

  In addition, such a valve has the property of allowing the use of the same body 10 which has just been described, this in a standard way, both with the double flywheel 18 and trigger 23 is shown in Figures 1 to 4 with a simple control flywheel 18, that is to say without trigger 23. Reference is made to Figure 11 where is shown such a valve with a simple steering wheel Here the trigger 23 and the sleeve 24 are removed , as is the spring 28 The central rod 19 of the steering wheel 18 is directly screwed

  in a member 40 having a general shape of annular gutter

  reversed and replacing alone the bell 30 and the

  bushing 24, the resilient means 28 being removed.

  In the construction of Figure 11, it will be appreciated that the ball 21 is always interposed between the central rod 19 of the flywheel 18 and the shutter member 14, while the spring

  22 of return in opening of the shutter member 14 is always

expected days.

  In a simplified construction and reduced price

  (Figure 12) and still using the same body 10 of the

  binet, it is intended to form the shutter member 14 of a

  with the steering wheel 18 and, in this case, the spring

recall 22 is deleted.

  As seen in FIG. 12, the upper end 36 of the shutter member is fluted and the steering wheel 18 is

  directly forced on this end 36 De pre-

  -ference, the steering wheel 18 carries a radial web 37 which facilitates the operation and indicates at each moment the position in which the valve is located at the time of fitting into

  36, it is necessary to take the precaution of giving a

  predetermined position in the web 37, for example in the

  the handle P in the closed position.

  It will be noted that in the simplified construction of FIG. 12, the shutter member 14 directly integral with the

  steering wheel 18 is allowed to rub in rotation on the seat 13.

  Such operating conditions could cause fear of premature wear of the seal 17, particularly because of the existence of the depressions 49, but experience has shown that the behavior of the valve remains satisfactory for a period of time.

acceptable service.

  It will be appreciated that in the various embodiments described and shown stop means are provided to prevent excessive unscrewing of the flywheel 18 in the opening direction. These means consist, for example, of FIGS. 1 to 11 in a ring J and to FIG. Figure 12 in a shoulder E, the ring J or the shoulder E cooperating with a stopping surface A.

25358 '

Claims (16)

  1) Valve, in particular for a torch, comprising a body (10) in which is formed a fluid passage (11), at least a portion of which is defined by a bore (12) provided with a shoulder forming an annular seat (13), and a shutter member (14) slidably engaged in said bore (12) so as to be movable towards and away from said seat (13) under   the action of a control crew (15), said crew   placing a double command, tap characterized in that said crew (15) comprises, firstly, a steering wheel (18) adapted to act in thrust on the shutter member (14), for closing and adjusting the flow and, on the other hand, an actuating trigger (23) secured to a bushing (24) in which the flywheel (18) is screwed, said bushing (24) having a flange (25) which bears on an annular bearing surface (26) of the body (10) at the inlet of said bore (12) under the action of an elastic means (28) interposed between this collar (25) and an opposite annular bearing surface (29) arranged on a bell (30) fixed to the body (10), said assembly (15) being positioned generally on the body (10) by the effect of the elastic means (28) which tends to maintain the collar (25) applied in a centered manner, in general support on the span (26) of the body (10), said crew (15) being tiltable in block for opening under the action of the trigger (23) and against the resistance of the elastic means (28), the flange (25) being allowed to deviate from the scope (26) of the body (10) with the exception of a zone localized contact (C) forming a tilt support.   2) Tap according to claim 1, characterized in that means are provided to prevent the trigger (23) from rotating in either direction about the axis of the steering wheel (18).   3) Tap according to claim 2, characterized in   the trigger (23) in the general shape of a gutter   se is allowed to style a tenon (41) on a handle (P) integral with the body (10).   4) Tap according to any one of the claims   1 to 3, characterized in that the sleeve (24) is made   the trigger (23) on the one hand axially through a stop (42) of the sleeve (24) on the trigger (23) and other 2 35817   angularly by local depression (44) of the crimping (43) of the sleeve (24) in at least one recess (45) of the trigger (23).   ) Tap according to any one of the claims   1 to 4, characterized in that the lifting stroke of the flange (25) during the operation of the trigger (23) for   the opening is defined by a hillock (46).   6) Tap according to claim 5, characterized in   this stop consists of an integral annular shoulder laughter (46) of the bell (30).   7) Tap according to any one of the claims   preceding, characterized in that the shutter member has an upper surface (47) defining a thrust contact zone with the flywheel (18), provided in the vicinity of the bearing surface (26) of the body (10) for the flange (25) of the socket (24).   8) Tap according to claim 7, characterized in   the flywheel (18) acts in contact with the upper surface   (47) of the shutter member (14) via   a spherical surface (21) harder than this upper surface   upper (47) and allowed to dig in operation therein a bowl (48), the center (0) of this spherical surface (21) being substantially coplanar with the bearing surface (26)   of the body (10) for the flange (25) of the sleeve (24) when   that the trigger (23) is halfway between the position of   verture and the closed position.   9) Tap according to any one of the claims   previous, characterized in that the elastic means comprises   a coil spring (28) extending between the concentric bushing   trestle (24) and the bell (30).   ) Tap according to any one of the claims   preceding characterized in that the flywheel (18) comprises, firstly, a central threaded rod (19) by which it is screwed into the sleeve (24) and which cooperates in thrust on   the shutter member (14) and, secondly, a circumferential ring   phérique grasping (20) surrounding a portion (31) of the   trigger (23) which is close to the sleeve (24).   11) Tap according to claim 10, characterized in that this portion (31) of the trigger (23) adjacent the sleeve (24) has two concentric spaced skirts: an inner skirt (32) which is fixed to the sleeve (24). ) and an outer skirt (33) surrounding the bell (30) and itself surrounded by the peripheral gripping ring (20) of the flywheel (18).   12) Tap according to any one of the claims   preceding, characterized in that the flywheel (18) cooperates in thrust with the shutter member (14) via dl a ball (21) -   13) Tap according to any one of the claims   previous arrangements, characterized in that the shutter member (14) is biased open by a spring (22) taking   support on the body (10) and placed opposite the steering wheel (18).   14) Tap according to any one of the claims   preceding, characterized in that the bearing (26) of the body (10) on which the flange (25) of the bushing (24) bears is defined by an annular boss (34) of the body (10) on which the bell ( 30) is screwed for attachment to the body.   15) Tap according to any one of the claims   previous, whose body (10) is usable in cooperation with a simple steering wheel and in the absence of trigger, characterized in that for this use, the wheel (18) is directly screwed into a member (40) having a general shape of inverted annular gutter and replacing alone the bell (30) and the sleeve (24), the elastic means (28) being deleted.   16) Tap according to claim 15, characterized in that, in a simplified version, the shutter member (14) is integral with the wheel (18) and is free of return spring. 17) A valve, in particular for a torch, comprising a body (10) in which is formed a fluid passage (11), at least a portion of which is defined by a bore (12) provided with a shoulder forming an annular seat (13) , and a shutter member (14) slidably engaged in said bore (12) so as to be movable towards and away from said seat (13) under   the action of a control crew (15), said crew   putting a simple command, faucet characterized in that   said crew (15) comprises a flywheel (18) screwed into a body   gane (40) in the general shape of inverted annular gutter, the shutter member (14) being integral with the flywheel (18) and being allowed to rub directly in rotation on said seat (13).   18) A valve according to claim 16 or claim   cation 17, characterized in that the flywheel (18) carries a radial web (37) which facilitates the maneuver and indicates to any   moment the position in which the faucet is.   19) Tap according to any one of the claims   preceding, characterized in that the shutter member (14) -   cooperates with the seat (13) of the valve by deformation effect of an O-ring made of elastomeric material (17) which is carried by the shutter member and which comes into application against the   seat (13) which is made of rigid material.   ) Tap according to Claim 19, characterized   in that said seat (13) has one or more depressions   local sockets (49) which pass a pilot flow when the seal (17) touches the seat (13) but which are clogged to allow a complete closure when the seal   (17) is compressed against the seat (13).