DK143646B - APPLICATION TO STEP DRAWING A LABEL BEAR TAPE - Google Patents

Description

(19) DENMARK

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W (12) PUBLICATION MANUAL ou 143646 B

DIRECTORATE OF THE PATENT AND TRADEMARKET SYSTEM

(21) Application No. 2175/74 (51) Int.CI.3 B 65 C 9/18 (22) filing day 19 · spr. 1974 (24) Race day 19 · Apr. 1974 (41) Aim. available Oct 22 1974 (44) Presented 21. September 1981 (86) International application no.

(86) International filing day (85) Continuation day - (62) Application number **

(30) Priority 21 Apr 1973, 2320333, DE

(71) Applicant ESSELTE PENDAFLEX CORPORATION, New York, US.

(72) Inventor Kurt Slchrotz, DE: Werner Becker, DE.

(74) Associate Company Chas. Hude.

(54) Apparatus for stepwise pulling of a label carrier,

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to an apparatus for stepwise pulling of a label carrier of the kind set forth in the preamble of claim 1, which includes is known from German usage pattern No. 7,117,998, corresponding to DE-OS 2,122,841.

In this type of peeler, a gripping latch, counteracted by a spring, is pivotally hinged on a carriage which can be displaced parallel to a fixed guide plate for the label carrier. In the guide plate there are several longitudinal grooves corresponding to the grip and feel of the gripping bracket, which can accommodate these when the gripping blade is in the gripping position. Behind the range of movement of the gripping bracket, a locking latch is provided above the guide plate, whose holding teeth engage the longitudinal grooves in the guide plate.

In order for the label carrier to be pulled off to be inserted into the peeler, the guide plate can be folded up about an axis parallel to the peel direction and secured to the housing in which the slider is guided. Thus, when loading the label carrier, it is necessary to first open the guide plate and then to place the label carrier on the guide plate so that, after the guide plate is folded in, it aligns with the gripping latch and the locking latch.

Although the alignment of the label carrier is facilitated by guide spacers placed on the guide plate, the known mechanism requires some dexterity to quickly and errorlessly insert the label carrier into the peeler. In the known label apparatus it is not possible to insert the beginning of the label carrier into the apparatus between the guide plate and the gripping latch and the locking latch, since the length of the guide plate in the pull direction is greater than the pull path and this length is too large to allow the label carrier strip to be inserted. and the latch up.

German Patent Specification No. 2,227,320 discloses an apparatus for stepwise pulling of a label carrier with a transport rocker arm which can rotate back and forth around a pivot axis. On the free part of the rocker arm is attached a guide portion for the label carrier. This guide member interacts with a clamping latch which is pivotally mounted in the transport rocker arm. During clamping movement, the clamping clamp clamps the strap between itself and the guide surface. At the onset of the pull-off movement, the clamping lever is rotated into the clamping position against a spring actuation of a guide rod which causes the pull-out movement. Then, the guide rod pulls the clamping lever together with the transport rocker arm and the clamped label carrier in the pull direction until a sensing device responding to the cut edge of the label interrupts the continued belt pull. During the following backward movement of a handle under the influence of a reset spring, the transport rocker arm is again swung into the gripping position and a belt clip is closed, holding the label carrier.

This known mechanism has the disadvantage that the label carrier can only be inserted from the side of the apparatus after the sidewall of the housing is taken by the label apparatus, ie. between the clamping lever and the guide member as well as in the ribbon clamp. Here, too, the insertion of the label tape is time-consuming and requires some dexterity.

The object of the invention is to provide an apparatus for the step-by-step removal of a label carrier, which permits convenient insertion of the label carrier, while at the same time having a high operational reliability, despite its simple construction.

This object is achieved by the apparatus according to the invention being designed as indicated by the characterizing features of claim 1.

Since the guide portion in the pull direction is relatively narrow and the gripping latch at the end of the transport movement is at a small distance from the locking latch, the beginning of a label carrier can be inserted into the pull direction in the apparatus without any difficulty, and at the same time both the grab latch as well as the locking latch can be pushed up. By operating a handle, the transport rocker arm can be moved into the gripping position. Then, the transport rocker arm moves in the pull direction, e.g. under the influence of a reset spring, the sensor key first senses the label carrier until it falls into a recess in the label carrier and the gripping latch grabs the label carrier. At any subsequent step, a reliable, accurate peel-off of the label carrier is now performed. As the locking latch releases at each pull movement the label carrier and at the end of the pull movement penetrates the label carrier with its retaining teeth, even under extreme conditions an accurate transport of the label in the printing position and in the delivery position is achieved.

In a preferred embodiment of the invention, the latch is applied to the free end of a latch arm which is pressed against the label carrier by a spring, i.e. is held in the locking position and which, when moving the transport rocker arm in the transport direction, after the gripping latch has fallen into the gripping position, is lifted by the transport rocker arm over a control latch and released at the end of the transport rocker arm in the transport direction so that it can fall into the locking position. . If the transport rocker arm is brought back to grip position, the movement has no influence on the lock rocker arm, as the control latch counteracted by a reset spring releases the way of transport rocker = arm. However, if the latch lever of the transport rocker arm has gripped the label carrier, the latch arm is raised so that the retaining teeth release the label carrier belt until the transport rocker arm completes its movement in the transport direction.

The guide of the label tape is designed so that when the tape is pulled off, the least possible friction occurs. Thereby, there is a risk of the label strip being displaced during the placement of a label in the dispensing position, which with its rear edge still easily adheres to the label carrier or the subsequent label, so that the label to be printed will not stand in the right pressure position. To avoid this disadvantage, there is a clamp-folding arm which cooperates with the transport rocker arm and is held in the clamping position by a spring and squeezes the label band between its clamping surface and a counter-surface. This clamping rocker arm is opened by rotating the transport rocker arm in the gripping position until the transport rocker arm has substantially completed its rotating motion in the transport direction. The squeezing of the label band between the clamping lever arm's clamping surface and the counterpressure surface, shortly before the transport rocker arm has completed its pull-off movement, causes the label belt to be clamped between the clamping position and the gripping latch, and the label carrier belt lying tightly on the printing table label. .

Other features of the invention appear from the other claims.

In the following, two embodiments of the apparatus according to the invention are described with reference to the drawing, in which fig. Figure 1 is a side view of a label printing and dispensing apparatus with a tape pulling mechanism according to the invention; 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 is a sectional view taken along line III-III of FIG. 2, FIG. 4 is a section along line IV-IV of FIG. 1, FIG. 5 is a section along the line V-V in FIG. 4, and FIG. 6 is a view similar to that of FIG. 1 of another embodiment of the apparatus according to the invention.

In the embodiment shown in FIG. 1, the hand-operated labeling apparatus shown in step 1 consists of the apparatus for gradually pulling off the labeling belt 1 consisting of a transportable and retractable transport rocker arm 3 which is pivotally mounted on a shaft 4 in the housing 2 and which has a rotatable gripping latch 6 a shaft 5, and of a spring 7 with gripping teeth 8 is pressed up against a carrier belt 1 on a guide surface 9 on a guide part 10.

Sensor keys 11 are arranged on the gripping latch 6 which sense edge recesses in the label carrier 1. When the sensor keys 11 fall into the recesses in the carrier band 1, the gripper teeth 8 bump into this band 1.

As shown in Figures 2 and 3, recesses 12 are formed in the guide portion 10 which correspond to the gripping teeth 8. Further, deeper grooves 13 are formed in which the sensor keys 11 engage as they engage through the recesses 12 in the label carrier 1.

The transport rocker arm 3 is composed of two parallel legs 3a and 3b, the ends of which are rigidly connected to each other over the narrow guide part 10. On the gripping latch 6, clamping edges 14 are placed next to the gripping teeth 8, which after the penetration of the gripping teeth 8 in the belt to be pulled, the belt clings between itself and the guide surface 9 on the guide part 10. These clamping edges 14 allow even great pulling forces to be exerted.

A locking latch 15 provided with retaining teeth and which can pivot about a shaft 17 counteracted by a reset spring 18 pushing it against an abutment 19 prevents the displacement of the carrier belt 1 from the direction of transport. In order for the retaining teeth 16 to be able to hold the carrier 1 exactly after each transport step, the locking latch 15 is arranged at the end of a locking arm 20 which can be swiveled about the shaft 21, which is pressed into the locking position by a reset spring 22, i.e. toward a stop 23. If the transport rocker arm 3 moves from the starting position shown to gripping position, a fixed with the transport rocker arm 3 for bonded guide surface 25 presses against the guide latch 24, which is thereby pivoted against the action of a reset spring 26 and releases transport. - the rocker arm 3's way into the grab position. Thereby, the retaining teeth 16 remain in engagement with the carrying strap. If the transport rocker arm 3 moves from the gripping position in the transport direction to the starting position, then - after the gripping latch 6 engages the carrier belt 1 - the guide surface 25 against the guide latch 24, thereby raising the locking rocker arm 20 against the action of the reset spring 22, and the holding teeth 16 is brought out of engagement with the strap 1. Upon completion of the pull movement, the guide latch 24 slides over the end of the guide surface 25 so that the latch arm 20 of the spring 22 is pressed against the stop 23 and the retaining teeth 16 are pushed through the strap 1. Below the latch 1 stationary guide strip 27, in which recesses 28 are formed corresponding to the retaining teeth 16. Above the stationary guide strip 27 is also a stationary guide tongue 29, which engages through a window-like recess 30 in the gripping latch and a corresponding recess in the locking latch 15.

The transport rocker arm 3 is connected to a handle 31 which is pivotally mounted about an axis 37 in the labeling apparatus housing and is rigidly connected to gable walls 32a and 32b, between which the transport rocker = arm 3, the lock rocker arm 20 and a clamp rocker arm 38 is provided.

On the gable walls 32a and 32b of the handle 31 are carrier bolts 33 which engage guide slots 34 in the walls 3a and 3b on the legs of the rocker arm 3 '. At the front free end of the gable walls 32a, 32b is arranged a printing unit 40 which, when swinging the handle, prints the label lying on the printing table 39. At the same time, the transport rocker arm 3 is pivoted into the gripping position of the carrier bolts 33. If the handle 31 is released, the reset spring 36 pushes a transport rocker = arm 3 in the transport direction over a stiffening pin 35 in the transport direction shown. In the resulting peel off of the label carrier 1, a printed label 43 is placed at a bending edge 42 in a dispensing position below a printing roller 41.

In order to prevent the label tape from being unrolled from the supply roll 44 by unrolling the label 43, the clamp rocker arm 38 is

Claims (4)

14 over the pin 35 with a clamping surface 45 pressed against the label tape lying on a counter surface 46 which is thereby secured. By swinging the handle 31, the pin 35 placed in the transport rocker arm 3 and within a recess 48 in the clamp rocker arm 38 presses spring 35 against the spring 36, so that the clamp rocker arm 38 is relieved and the clamping surface 45 is only slightly against the label band. The pressure table 39 with the guide edge 42 and the counter surface 46 is arranged in a bottom 50 which is foldable about a shaft 49. Upon insertion of the label tape, the bottom 50 is pivoted and the beginning of the label tape coming from the supply roll 44 is pushed through the guide channel 51 in the clamping rocker arm 38 bending edge 42 and sliding between guide portion 10 and guide tongue 29 until the front end of the label strip leaves the apparatus behind the locking latch 15. Upon insertion of the front end of the label tape, the gripping latch 6 and the locking latch 15 open automatically. When inserting the label tape, it is not necessary to remove staple labels from the front of the carrier 1. In FIG. 6, a modified embodiment of the apparatus according to the invention is shown, and the parts having the same function as the parts of the apparatus described above are designated with the same reference numerals as these, however, with markings. There is no clamp rocker arm in this apparatus. In this embodiment, the guide latch 24 'is not disposed on the latch arm but on the lash arm 3', while the guide surface 25 'is mounted on the latch arm 20'. The gripping position of the transport rocker arm 3 'is plotted in dotted lines. 1. Apparatus for stepwise pulling of a label carrier which is provided with recesses for controlling pull lengths, which apparatus consists of a gripping mechanism which can be moved in the longitudinal direction of the belt slightly longer than the pull length in the reciprocating direction, to which gripping mechanism there is. is hinged with a gripper key (11) provided with a gripper latch (6) whose sensor key (11) senses the recesses in the label carrier and in case of recesses releases the movement of the gripper latch (6) in the gripping position and if the gripper teeth (8) move forward the gripping mechanism penetrates the label carrier and includes this, and (6) upon retracting the gripping mechanism lifts from the label carrier and cooperates with a carrier-guided guide member (10) provided with grooves or grooves (12, 13) corresponding to the ribs (8) and the sensor key (11) of the gripper, as well as a region of and adjacent to the movement of the gripper (6). tapered retaining teeth (16) provided with locking latch (15) which opens in the transport direction of the label carrier and held in the locking position by a spring (18), characterized in that the gripping latch (6) and the guide part (10) are arranged at the free end of the a transport rocker arm (3) capable of pivoting back and forth on a pivot shaft (4), said transport rocker arm (3) being composed of two parallel legs (3a, 3b), the ends of which are connected rigidly to each other over it. the transport direction is narrow guide part (10) and the locking latch (16) is arranged so that it can be raised by a spring (18) over the label carrier (1) and is coupled to the transport mechanism to lift it from the label belt ( 1) when the transport rocker arm (3) is moved in the pull-out direction and is released when the transport movement is completed. Apparatus according to claim 1, characterized in that the locking bracket (16, 16 ') is arranged at the free end of a locking rocker = arm (20, 20') which, when moving the transport rocker arm (3, 3 ') ) in its conveying direction is lifted by a control mechanism consisting of a guide surface (25, 25 ') and a guide latch (24, 24') which is released by a reciprocating movement, whereby the control surface (25, 25 ') at the end of the transport movement slides over the steering latch (24, 24 '). Apparatus according to claim 2, characterized in that the locking rocker arm (20) extends substantially parallel to the direction of pull-out of the transporting rocker arm (3) and is rotatable about a shaft (21) located below the locking latch (15). ) pivot shaft (17). Apparatus according to claim 2 or 3, characterized in that the guide surface (25) is arranged on the transport rocker arm (3) and the co-actuator.