FR2499444A1 - NEW APPARATUS FOR DRIVING ANKLES OR THE LIKE - Google Patents

Abstract

APPARATUS FOR PRESSING ANALOGUES OR ANALOGUE ORGANS IN MATERIALS SUCH AS WALLS, OF THE TYPE INCLUDING A PUSH ROD ON WHICH THE USER STRIKES WITH A HAMMER OR MASSETTE AND WHICH SLIDES INSIDE THE BODY OF THE DEVICE THE ANKLE IN THE MATERIAL, AN APPARATUS CHARACTERIZED BY THE FACT THAT ITS BODY IS CONSTITUTED BY A FIXED PART 1 THE END OF WHICH LIES AGAINST THE MATERIAL IN WHICH IT IS DESIRED TO PRESS THE PLUG AND BY A MOBILE PART 2 LIKELY TO SLIDE IN RELATION TO THE FIXED PART, A RETURN SPRING 9 BEING AVAILABLE INSIDE THE BODY OF THE APPLIANCE TO MOVE THE MOBILE PART FROM THE FIXED PART, THE MOBILE PART BEING ABLE TO MOVE IN DIRECTION OF THE MATERIAL IN WHICH THE ANKLE IS PRESSED BY COMPRESSING THE RETURN SPRING TO THE FUR AND AS THE HAIR SENSES UNDER THE ACTION OF SHOCKS EXERCISED BY THE USER ON THE PUSH-ROD 8.

Description

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  The present invention relates to an apparatus for carrying out manually using, for example with a hammer or a mallet, the insertion of ankles or the like in

  hard materials such as walls.

  We already know of devices that allow the insertion of ankles using repeated blows given with a hammer These devices are not easy to use because on the one hand they

  do not ensure proper guiding of the ankle when it is inserted

  and on the other hand the part on which one strikes with the mar-

  plug to push in the ankle tends to rebound under the action

  of the shocks communicated to it.

  The present invention relates to an apparatus of the preciti type which is of a simple and inexpensive embodiment and which makes it possible with great ease to manually drive in dowels or the like in various materials such as

walls.

  The present invention relates to an apparatus for driving the plugs or the like in materials such as walls, of the type comprising a push rod on which the user strikes with a hammer or a hammer and which slides with inside the body of the device pushes the ankle into the material, this device being characterized in that

  its body is made up of a fixed part, the end of which

  puie against the material where you want to push the pin, and by a movable part capable of sliding relative to the fixed part, a return spring being disposed inside the body of the device to separate the movable part from the fixed part, the movable part being able to move in the direction of the material in which the ankle is inserted by compressing the return spring as the ankle sinks under the action of shocks

  struck by the user on the driving rod.

  In a preferred embodiment of the invention the push rod is capable of sliding axially over a certain fraction of its length relative to the movable part of the body of the device, so that the shock caused by the blow hammer on the push rod does not affect the

mobile part.

  In a preferred embodiment, the push rod has a section of smaller diameter over the part of its length which corresponds to the clearance that it is desired to give it

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  relative to the movable part of the body of the device and at least three lugs which engage radially in the movable part of the body of the device and are applied elastically against the

  part of smaller diameter of te-pcusscir.

  In one embodiment of the invention, the fixed part of the body of the device has a stopper made of rubber or similar material against which it is supported.

  shoulder made on the push rod d: so as to limit the

  darkening of the ankle in the material.

  According to a particular embodiment of the invention, the fixed part of the body of the device comprises a removable tip which allows, by a set of tips of different shapes, to adapt

  easily the device to different types of washers or atta-

  ches which must be fixed using the dowels.

  According to a preferred embodiment, the removable end piece is held in the fixed part of the body of the device by a longitudinal groove disposed on the periphery of the end piece, the cut out which ends in a circular part of larger diameter in which is placed a locking member which, in a position is opposed to the release of the nozzle and in

another position allows it.

  In a particular embodiment, this locking member is held by a circular clip in the position

  who opposes the removal of the tip.

  In order to better understand the invention we will now describe by way of illustration and without any limiting character an embodiment taken as an example and shown

in the accompanying drawing.

  In this drawing Figure 1 shows a sectional view

  longitudinal of an apparatus according to the invention.

  Figure 2 shows a sectional view along II-II of the

figure 1.

  Figure 3 shows a sectional view of the apparatus of

  Figure 1 when he drives a dowel into a material.

  Figure 4 is a top view along arrow IV of

  Figure 1, the removable tip being mounted and locked.

  Figure 5 corresponds to Figure 4, the movable tip

  being taken out of the fixed part of the body of the device.

  Figure 6 is a sectional view along VI-VI of the figure

re 1.

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  There is shown in section in Figures 1 and 2, the fixed part 1 of the body of the device and the movable part 2 which is capable of sliding telescopically outside of part 1, stops 3 and 4 preventing the mobile part cannot be released from the fixed part. The fixed part 1 has a tip 5 which, in the conventional manner, has a recess and magnets 6 intended to hold the washer or the fastener which must be crossed by the

  ankle which is not shown in FIG. 1.

  The movable part 2 of the body of the device comprises a

  head 7 through which the push rod 8 passes.

  According to the invention a return spring 9 is located inside the movable part 2. This spring 9 which bears on the one hand at 10 on the fixed part 1 of the body of the device and on the other hand at 11 on the head 7 of the mobile part 2 while being around the push rod 8, tends to constantly push the mobile part 2 relative to the fixed part 1 into the position

shown in Figure 1.

  In accordance with a preferred embodiment of the invention

  tion the push rod 8 has over a certain length a groove 12 of smaller diameter. Three pins 13 arranged in radial cavities of the head 7 engage in the groove 12 as can be seen in Figures 1 and 2. An elastic return ring 14

  constantly pushes each lug 13 towards the push rod

evening 8.

  The fixed part 1 of the body of the device has a rubber stop 15 against which the shoulder 16 of the push rod 8 can bear, the end 17 of which engages in the cavity 18 of the fixed part, which is intended to receive the

ankle.

  An annular magnet device 19 ensures in a conventional manner the maintenance of the ankle before the start of the

  sinking process of the latter.

  As can be seen in FIGS. 4 to 6, the removable end piece 5 comprises a cylindrical part 20 which engages in a recess 21 of corresponding shape made in the fixed part 1

of the device body.

  A locking member 22 ensures the joining of

  the nozzle 5 and of the fixed part 1 of the body of the device.

  -4- This locking member 22 has a head extended inward by a stud 23 milled parallel to two of its sides. A radial housing 24 in the form of a buttonhole is produced over a certain depth of the wall of the part 20 of the end piece. It is easily understood that when the locking member is placed in the position shown in Figure 5, the tip can be engaged in the fixed part 1 of the body of the device and that when the locking member 22 is then pivoted a quarter turn as shown in Figure 4, this locking member has its greatest width with respect to the housing

  24 and thus prevents the tip 5 from being removed.

  An elastic ring 25 placed in a circular groove 26

  practiced around the periphery of part 1 and in the head of the organ-

  locking device keeps the latter in place in the position corresponding to the attachment of the end piece to the part

fixed 1 to the body of the device.

  The use of the device which has just been described is very simple and it makes it possible to push in excellent conditions.

  pegs in even hard materials.

  To achieve the insertion of an ankle we engage it to

  inside the orifice 18 where it is held by the

circular mant 19.

  The user then takes the movable part 2 of the body of

  the device with one hand and applies the tip of the device

  eye against the surface in which he wishes to drive the ankle.

  The end of the push rod 17 then comes into contact with the head of the dowel, the tip of which rests on the material in which it is to be pressed. The pins 13 are brought back to the right part of the groove 12 of the push rod 8 under the effect of the pressure exerted by the user on the movable part 2 of the

body of the device.

  At this time the user strikes with repeated hammer blows on the end of the push rod 8 while constantly pushing the mobile part of the body of the device towards the

material to embed.

  Note that thanks to the characteristics of the device

  according to the invention the shocks caused by the hammer on the rod-

  push button 8 does not affect the movable part of the body of the device because the push rod 8 can slide relative to the

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head through throat 12.

  Immediately after the ankle has been hammered in and the rod 8 has been propelled towards the material, the user who constantly exerts a compressive force on the spring 9 brings back the mobile part 2 of the body of the the device in its maximum position to the right. It is thus understood that the edge 27 of the head 7 secured to the movable part 2 of the

  body of the device constantly comes to rest on the shoulder-

  ment 16 of the push rod and that the movable part 2 follows the rod

  push button when pushed in by eliminating the rebound effects due to the impact of the hammer which occur with the devices

  conventional, the pins 13 again coming into contact with the shoulder-

  located on the right side of the groove 12.

  The process is repeated after each hammer blow.

  In this way the device is perfectly bare against the material when the ankle is inserted, which

  ensures a very precise installation of the latter.

  There is shown in Figure 3 a sectional view of the apparatus during the insertion of the ankle. Note that in this figure the spring 9 is significantly more compressed than on

Figure 1.

  When the pin is at the end of insertion and to prevent the rod 17 from penetrating too deeply into the material, the shoulder 16 of the push rod 8 comes to bear against the rubber stop 15 which thus absorbs the shocks communicated by

the hammer with the push rod 8.

  When the ankle driving operation is complete, the user brings the device back. In this movement the spring 9 pushes the front part 1 to the right and separating it from the part 2 and the pins 13 pushed back by the elastic cheek 14 hold the push rod 8 in the position where it is located so that the we can proceed with the insertion

  a new anchor without having to replace it manually-

  as necessary with prior devices.

  It is understood that the embodiment which has been

  described is in no way limiting and that it may receive

  see all desirable modifications without departing from the framework

of the invention.

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Claims (7)

  1. Apparatus for embedding ankles or the like in materials such as walls, of the type comprising a push rod on which the user strikes with a hammer or a hammer and which then slides or body of 1 apparatus stick the ankle into the mtr, also characterized by   the fact that his body is const rt, r prii e fi e x whose ex-   end rests against the material in which you want to insert the pin and by a movable part capable of sliding relative to the fixed part, a ramp spring being placed inside the body of the device to separate the movable part of the fixed part, the mobile part being able to move in the direction of the material in which the ankle is inserted by compressing the return spring as the ankle is inserted under   the action of impacts exerted by the user on the push rod.   2. Apparatus according to claim I, characterized in that the push rod is capable of moving axially over a certain fraction of its length relative to the movable part of the body of the apparatus, so that the shock causes the hammer blow on the push rod does not affect the moving part.   3. Apparatus according to claim 2, characterized in that the push rod has a section of smaller diameter over the part of its length which corresponds to the clearance that it is desired to give it relative to the movable part of the body of the device, and at least three pins which engage radially   in the moving part of the body of the device and are applied   Plastically against the smaller diameter part of the push rod. 4. Apparatus according to claim 3, characterized in that upon removal of the apparatus after the insertion of the ankle the lugs return the push rod to its position initial before insertion.   5. Apparatus according to any one of the claims   previous characterized in that the fixed part of the body of the device comprises a stop in rubber or similar material against which comes to bear a shoulder formed on the push rod so as to limit the sinking of the ankle in the material.   6. Apparatus according to any one of claims -7- 249944   previous characterized in that the device has a removable tip which is held in the fixed part of the body of the device by a longitudinal groove disposed on the periphery of the tip, groove which ends in a circular part of larger diameter in which is placed a locking member which, in a position, opposes the release of   the tip and in another position allows it.   7. Apparatus according to claim 6, characterized in that the locking member is held in the position that opposes the release of the nozzle by a circular clip placed   in a groove located on the periphery of the fixed part of the em- end.