FI79674C - A lock intended especially for locking flake clamps - Google Patents

Description

1 79674

The present invention relates to a lock for locking a part, e.g. a pallet door 5, which part can move, in particular movable from a pivot to another, suitably fixed part, e.g. a column, the lock comprising a piston connected to the second part with a lateral direction. a protruding hook part and movable in and out of the hole associated with the second part by means of a control mechanism having a handle part connected to said piston by means of at least one articulated joint for converting the pivoting movement of the handle part into piston displacement.

15 The reversible platform hatches of various lorries are normally connected by an articulated bottom of the vehicle platform and have, in the vicinity of their upper edge, special locks each to lock the individual door in a vertical position with respect to a fixed part of the platform 20, usually a column. Such conventional locks, for example of the type disclosed in SE patent publications 199 448 and 227 637, comprise, on the one hand, a more or less complex, hand-operated control mechanism and, on the other hand, a movable tensioning handle adapted to be pivoted by a hook or projection on the post. . The guide mechanism and the associated clamping bracket can then be arranged in a cup or cup-shaped part which is embedded in the door itself, so that it cannot protrude out of this for other reasons. Such locks helpfully fulfill their function when the hatches consist of boards or other wooden material, since said cups can be embedded in such hatches without much difficulty. However, in the case of hatches assembled from aluminum profiles, which structure 35 is constantly dominating the sector in the vehicle market, considerable problems arise if attempts are made to install conventional hatch locks on them. Such hatches are thus assembled from a desired number of suitably standardized profiles, 2 79674 held together at their short ends by transverse vertical U-profiles, the webs of which contact the end faces of the hatch profiles and both side flanges of which adhere around the outer sides of the door profiles. In order to be able to engage and disengage the pivoting clamping bracket of the conventional 5 locks with the hook on the corresponding column, the web of the cohesive U-profile and also its second side flange must be concave to give space for both the cup and the clamping bracket itself. inside the plane represented by the outside of the hatch. Such a concavity in the second side flange of the U-profile decisively reduces the durability of the profile, whereby the structure does not serve its purpose. Another disadvantage of conventional locks is that the security against unintentional unlocking is mediocre.

A pallet lock of the type mentioned at the beginning is already known from EP patent application 81107494.7 (Publication number: 0 075 038). However, the locking operation of this lock is uncertain, as the piston can be removed from the hole by inadvertently pivoting out the handle part of the control mechanism. In addition, the lock as a whole is complicated and expensive to manufacture.

The primary object of the present invention is to eliminate the above-mentioned problems and to provide a lock which, on the one hand, can be simply and conveniently mounted on any type of pallet door and, on the other hand, provides a very reliable locking function. This is achieved according to the invention in that the handle part is pivotally connected via a first joint to a second piston, i.e. an auxiliary piston, which is arranged to protrude into the hole next to the first piston, i.e. the piston, and has a width greater than the width of the hole and the main piston. and the difference between the combined widths 35 of the hook part, so that when inserted, it ensures a stop-like response bounded by the hole of the hook part or the like, and said joint being connected to the hand part at a second distance from the first joint.

II

3 79674

Through a joint located on the yoke and on the other hand through a third joint, so that the piston can be moved from the initial position in which it is separated from the hole by turning the handle part from the initial position, where it is substantially parallel to the main piston, at an angle , in addition, after the hook part has been engaged with the stop, the auxiliary piston can be moved into the hole by turning the handle part 10 back from said folded out position to the starting position, so that both pistons can be removed from the hole only after the handle part has been actuated in two steps, namely in the first step. out of the initial position to the extended position and 15 in which the auxiliary piston is detached from the hole, and on the other hand in a second stage in which the handle part consciously turned back from the folded-out position to the starting position and in which the main piston, after the hook part has disengaged from the stop, is detached from the hole.

20

Although the lock according to the invention is particularly suitable in practice for locking locks, it is clear that it can be used in any other field of technology where high demands are placed on secure locking operation.

SE patents 125 152 and 311 295 already disclose locks using both a main piston and an auxiliary piston, which together are brought into contact with the hole. However, this is not a question of moving the pistons by means of a single control mechanism common to the pistons, which must be consciously actuated in two stages in order to release both the auxiliary piston and the main piston. Conversely, the main piston can move freely out of the hole as soon as the auxiliary piston is removed from the hole.

35

In the drawings Fig. 1 is a perspective view showing a 4 79674 lock according to the invention attached to a pallet hatch, only a small part of which is shown, Fig. 2 is a longitudinal section of the lock and shows this in the initial position, Fig. 3 is a partial longitudinal section of the same lock in another state, Fig. 4 is a cross-section of the lock in the third state, Fig. 5 is an end view of the lock itself, seen from right to left in Fig. 2, with the parts belonging to the pallet door 10 removed, and Figs. 6-8 show an alternative structure of the lock according to the invention.

In Figure 1, the number 1 generally denotes a hatch which is thought to be pivotally connected to the pallet by one or more joints (not shown) located at the bottom of the hatch. This platform also includes a fixed part formed by a vertical column 2. The hatch is assembled from a plurality of profiles 3, 20 3 ', etc., suitably made of aluminum, which are held together at their opposite short ends by means of U-profiles 4. Each such U-profile comprises a haze 4 'which contacts the short ends of the hatch profiles 1 and two side flanges 4 "which engage around the outer sides of the hatch profiles. A strip 5 is welded or otherwise attached to the inside of the post 2 and acts to In order to lock the door 1 with respect to the column 2, a lock according to the invention, indicated in its entirety, is arranged with respect to the column 2. It can be seen from the above that after releasing the lock 6 shown in the locking position, the door 1 can be turned up and down. downwards from the position shown in Figure 1 to a downward position from the joints in question

Reference is now also made to Figures 2 to 5, which together with Figure 1 show the various components of the lock 6.

5 79674

As can be seen from the drawings, said lock comprises on the one hand a first piston or main piston 7 and on the other hand a second piston or auxiliary piston 8. These two pistons are connected to a control mechanism which in addition to the handle part 9 also comprises two joints 10, 10 '.

At the front end of the main piston 7 there is a hook-like part or element 11 which, in the locking state of the piston, is adapted to engage a stop 12 on the inner side of a column 2 shaped as a box profile. 13 through. This hole is partially limited by the above-mentioned stop 12. In order to allow the main piston to pass freely through the hole 13, the hole has a width at least somewhat greater than the combined width or thickness of the main piston and the hook part 11, as best seen in Figure 3.

The auxiliary piston 8 has a width greater than the difference between the width of the hole 13 and the combined width of the main piston and the hook part, so that the hook part 11 absolutely remains behind the stop 12 as soon as the auxiliary piston 8 is inserted into the hole 13 next to the main piston. .

In a manner known per se, the handle part 9 is arranged in a cup or cup-shaped part generally indicated by the number 14, which in addition to the base 15 includes two long side walls 16, 16 'and an end wall 17 at the rear end of the cup. out the door. Attached to the inside of the side walls 16, 16 'are L-shaped guide strips 18, 18', the projecting flanges 35 of which serve to hold in place the branches 19, 19 ', which are made in one piece with the auxiliary piston 8. This auxiliary piston is made as a stamped plate with, on the one hand, two legs 20 on which said arms 19, 19 'are formed and, on the other hand, 6 79674 two cross-pieces 21 bent at right angles to the main plane of the piston plate at the rear end of the piston.

The handle part 9 is in the form of a plate, the width of which is only 5 slightly smaller than the width of the cup 14 and which has two side flanges 22, 22 'bent in against the bottom of the cup. This handle is articulated at its front end or pivotally connected to the auxiliary piston 8 by first joints 23 fitted to both legs 20 of the auxiliary piston 8.

Slightly rearward of the first joints of the side flanges 22, 22 ', the handles 24 are further articulated to two joints 10, 10', which in turn are articulated by a third, common joint 25 to the main piston 7, in particular to the rear end 15 thereof.

Arranged on the bottom 15 of the cup 14 are two spaced apart stops, namely a first stop 26 located relatively close to the front end of the hatch and a second stop 27 located a considerable distance behind the first stop. Between the first stop 26 and the two cross-members 21 of the auxiliary piston 8 there are two compression springs 28 which constantly tend to push the auxiliary piston backwards from the front end of the door. The second py-25 adjuster 27 limits the possibility of the auxiliary piston 8 to move backwards. It should be noted that the first stop 26 has two projections 26 'projecting on both sides of the main piston 7, which guide the piston laterally. Furthermore, it should be noted that the main piston 7, the auxiliary piston 8 and the handle 9 are not hingedly connected to the cup 14. The gripping mechanism shown and the plungers relative to the cup 14 are thus provided only by the branches 19 projecting under the guide strips 18, 18 '. 'inside.

35

Referring finally to Figure 4, it should be noted that the above-mentioned joints 24 between the handle 9 and the joints 10, 10 'are located in the locked position closer to the bottom of the cup 7 79674 14 than the joint 25 as the joints 10, 10' tilt back and forth from the joints 24. in this case, a spring force is applied from the springs 28 and via the handle 9, which in the locking position tends to move the joints 24 and thus 5 the handle part 9 inwards towards the bottom of the cup, whereby the handle part automatically remains in place here. The ejection of the handle part 9 to the position shown in Fig. 3 must therefore take place against the action of the springs 28.

In the initial position shown in Fig. 2, both pistons 7, 8 are pulled back through the corresponding opening 29 in the U-profile 4 of the pallet door, in addition to which the handle 9 is turned into the position in the cup 14. When the door is to be locked relative to the column 2, the door is pivoted up to a position where the main piston 7 is located approximately opposite the hole 13 of the pillar, after which the handle 9 is pivoted out in the first step to the position shown in Fig. 3. Since the rear cross-members 21 of the auxiliary piston 8 rest against the stop 27, so that the joint 23 cannot move further to the left than shown in Fig. 3, the handle 9 pushes the main piston 7 through the joints 10 into the hole 13 of the column 2, in particular so far that the hook portion 11 is located behind the stop 12. The door is then pressed in against the stop 5, in addition to which the handle part 9 is turned back to the position shown in Fig. 4. During this reversal of the handle, the hook portion 11 is supported on its obliquely cut surface in a manner corresponding to the oblique cut surface of the stop 12, which means that the main piston cannot move to the left in the silicon-30 intersection. In other words, the joint 25 is stationary in this state. As a result of the reversal of the handle 9, the joints 23 and thus also the auxiliary piston 8 move to the right in the drawing, whereby they finally reach the locking position shown in Figs. Since the width or thickness of the auxiliary piston 35 is greater than the difference between the width of the hole 13 and the combined width of the main piston 7 and the hook part 11, this hook part remains absolutely reliable 8 79674 in the locking position as long as the auxiliary piston 8 is in the position shown in Fig. 4.

When releasing the lock, the opposite procedure is followed.

The handle 9 is pivoted out to the position shown in Fig. 3, whereby the auxiliary piston is removed from the hole 13. The pallet door can then be pivoted a short distance from the stop 5 so that the hook part 11 disengages from the stop 12, then the end 7 is moved back to the starting position 10 shown in Fig. 2. 9 back to a position parallel to the cup.

It should be noted that even unintentional pivoting of the handle 9 to the position shown in Fig. 3 does not cause the pallet hatch 15 to inadvertently disengage from the post 2 and fall into the lowered position, as the main piston 7 still remains in the hole 13. The locking main piston can only be removed from the post 2 is consciously acted upon, namely by returning it to the position shown in Fig. 2.

20

Figures 6-8 show a structure which differs from the structure shown in Figures 1-5 e.g. so that the guides 18, 18 'are here placed on the bottom 15 of the cup 14, in addition to which the arms 25 19, 19' of both legs or side pieces 20 of the auxiliary piston 8 are bent inwards and not outwards.

It is clear that the invention is not limited to the structure described and shown in the drawings. Thus, only one joint can be used between the handle and the main piston instead of the two 30, which has been preferred in the example shown. In addition, instead of two springs, only one spring can be used. In general, the control mechanism for moving the two pistons 7, 8 can be modified in many ways without departing from the basic idea of the invention. As mentioned at the beginning, the idea of the invention 35 can also be applied not only specifically to cast iron traps, but in general to the locking of a movable part with respect to another, fixed or movable part.

li

Claims (6)

9 79674 A lock for locking a part (1), e.g. a pallet door, which part can move, in particular movable from a pivot to a second, suitably fixed part (2), e.g. a column, the lock 5 comprising a piston (7) associated with the second part (1) ) having a laterally projecting hook portion (11) and movable in and out of the hole (13) associated with the second portion (2) by a guide mechanism having a handle portion (9) connected to said piston (7) by at least one articulated via a joint (10, 10 ') for converting the pivoting movement of the handle part into a piston displacement, characterized in that the handle part (9) is connected via a first joint (23) to a pivoting second piston, i.e. an auxiliary piston (8) adapted to protrude a hole (13) adjacent to the first piston, i.e. the main piston (7), and having a width greater than the width of the hole and the main piston and the hook part. a difference between the calculated width so that when inserted it ensures a stop 20 or the like (12) bounded by a hole in the hook part (11), and that said joint (10, 10 ') is connected on the other hand to the handle part (9) at a second distance from the first joint (23) and on the other hand to the main piston (7) via a third joint (25) so that the main piston can be moved from the initial position in which it is separated from the hole (13) by turning the handle part from the initial position in which it is substantially parallel, at an angle, suitably at an approximately right angle to the main piston in an extended position, in addition the auxiliary piston (8) can be moved into the hole after the hook part (11) has been engaged by turning the handle part (9) back from said folded out position -toon, where mo the respective pistons (7, 8) can be removed from the hole (13) only after the handle part has been acted upon in two steps, namely in the first step of turning the handle part out of the initial position to the extended position and removing the auxiliary piston (8) from the hole; the handle part is deliberately turned back from the folded-out position to the starting position, and in which the main piston (7) is removed from the hole after the hook part (11) has disengaged from the stop (12). 2. A method according to claim 1, which comprises a transverse column (8) and is provided with an additional column (28) having a position corresponding to the volume of the account (25). Lock according to Claim 1, characterized in that the auxiliary piston (8) is acted upon by one or more springs (28) which at all times tend to bring it back to its original position from the hole (13). 3. A patent according to claims 1 or 2, which comprises a handle (9) of a plunger (7, 8) and is fitted with a baler (14) in the form of a bottle 30 (15) and a blank in the form of a seal - the coupling rod (16, 16 ') and the plunger (7) are arranged with the rear column (8) and the balancing bottles (15), the colors are inscribed on the coupling column (16, 16') and the outer column (18, 18 ') , t.ex. Lister, anordnade att samver-35 ka med frän hjälpkvenven (8) utstickande fötter (19, 19 ') vilka är lokaliserade mellan styrningarna oc baljans botten (15) i syfte att kvarhälla hjälpkvenven and därmed manöverme-kanismen i dess helhet rel. 1 13 79674 Lock according to Claim 1 or 2, characterized in that the handle part (9) and the pistons (7, 8) are arranged in a cup or cup-shaped part (14) with a base (15) and at least two separate side walls (16, 16). to form a wall, and that the main piston (7) is arranged between the auxiliary piston (8) and the bottom (15) of the cup, the projecting guides (18, 18 ') being arranged inside the side walls (16, 16'), e.g. is adapted to co-operate with the branches (19, 19 ') projecting from the auxiliary piston (8) located between the guides and the base (15) of the cup, to hold the auxiliary piston 20 and thus the entire guide mechanism in place relative to the cup. 4. A patent according to claims 2 and 3, which can be attached to the balancing bottles (15) and provided with a stop (26, 27) which does not cover the cross-section of the cross-section, the colors (28) and the placards of Melian 5 a sidewall flask, which is connected to a stopper (26) and a sidewall piston with a rear piston (8) for a knurled stop (21), which is also localized to the ground and the stop (27). 10 5. A patent according to claims 3 or 4, which can be used as a hand-held tool (9) in the form of a flat-bladed blanket (14) and a flat-bladed baler (22, 22 '). vilka upptar nämnda första och andra 15 leder (23, 24). Lock according to Claim 2 or 3, characterized in that two stops (26, 27) are arranged on the bottom (15) of the cup, which are spaced apart from one another in the direction of the longitudinal dimension of the pistons, the springs (28) being arranged on one side. between a stop (26) located at the free ends of the pistons and, on the other hand, two cross-sections (21) connected to the auxiliary piston (8), which in turn are located between the springs and the second stop (27). Lock according to Claim 3 or 4, characterized in that the handle part (9) is in the form of a plate with a width only slightly smaller than the width of the cup (14) and with two side flanges (22, 22 'directed towards the bottom of the cup or bent inwards). ) receiving said first and second joints (23, 24). and 79674 Lock according to claim 5, characterized in that the second joint (24) is located in the locking and / or out position of the control mechanism closer to the bottom (15) of the cup than the third joint (25) when the joint (10, 10 ') between said joints is placed obliquely backwards and outwards so that a spring force is applied from the springs (28) and through the handle part (9) to the second joint (24), which in the locking and starting position tends to push the second joint (24) and thus the handle part (9) inwards towards the bottom of the cup the hand portion 10 (9) remaining automatically in place in the cup. Lock according to one of Claims 3 to 6, characterized in that the free, rearward-facing end of the handle part (9) is spaced from the rear end wall (17) of the cup (14) so that one or more fingers can be inserted between them. . 20 1. Läs för läsning av en del (1), t.ex. en flakläm, som är rörlig, i synnerhet svängbart rörlig relativt en annan, warming fast del (2), t.ex. in the case of a piston (1) with a plunger (1), a plunger and a plunger (11) and a plunger (25) and in the case of a plunger (2) with a hand-operated mechanism with handpieces (9), which can be mounted with a plunger (7) via a stopper and a lead (10, 10 ') with an upper handpiece for the handles of the handles (30, 10') of the hand-held flask (9) with the aid of an LED (23) with a flask of the plunger or of the plunger (8), of which the anchor is attached to the flask (7) and of the flask of the flask (7) and vilken har en bredd som är större än 35 skillnaden mellan hälets bredd ocen den sammanlagda bredden av huvudkolven och hakelementet för att i inspjutet till-ständ säkra hakelementet (11) bakom en h & let avgränsande ansats eller dylikt (12), och att sagda , 10 ') är 12 79674 for the use of hand-held lights (9) via an andra led (24) localized to the front of the ledge (23), for the amusement piston (7) via the three-way led (25) for the operation of the amusement piston (7) ingrepp 5 med hälet (13) in i detta genom svängning av handtagsdelen frän ett utgängsläge, i vilket densamma befinner sig väsent-ligen parallellt med huvudkolven, account ett i vinkel, warmly ungefär rät vinkel mot huvudkolven utsvämt läge, (8), sedan hakelementet (11) bragts att 10 gripa tag i ansatsen (12), är förskjutbar in i hälet genom tillbakasvängning av handtagsdelen (9) frän sagda utsvängda läge account utgängsläget, varvid de bäda kolvarna (7, 8) är frigörb ur hälet (13) först efter en päverkan av handtagsdelen i tvä steg, nämligen dels ett första steg i vil-15 ket handtagsdelen svängs ut frän utgängsläget account det utsvängda läget och i vilket hjälpkolven (8) förs ur in grepp med hälet, dels ett andra steg i vilket handtagsdelen medve-tet svängs tillbaka frän det utsvängda läget account utgängsläget och i vilket huvudkolven (7) - sedan hakelementet (11) 20 släppt ansatsen (12) - förs ur ingrepp med hälet. 6. A patent according to claim 5, which includes a handle (24) and a maneuvering mechanism in place of and / or a means of locating the localized bales (15) and 20 of the third leds (25) under snowshoes of the ballast the strap (10, 10 ') in the rupture of the brains (10, 10') and the handrail (28) and via the handpiece (9) in the case of the gate (24) and the strap are somewhat resp. the use of straps as far as and after 25 LEDs (24) and other handles (9) and in the case of bottles under the left hand side of the handles (9) and the handles. 1 The first step of the patent is 3-6, with a reference to the 30th reference number of the reference number (9) and the localization of the reference number (17) of the reference number (17) for the reference number of the reference number (17). fingrar i utrymmet däremellan.