DE1807398A1 - Pull handle for container with tear-off lid - Google Patents

Description

DIPL.-INQ. FTHIELEKE DIPL PHYS DR J FRIOKE DR.-ING. R. DÖRING DIPL.-PHYS. DR. J. FRIOKE

BRAUNSCHWEIG MUNICH

Continental Can Company, Inc., 633 Third Avenue, New York 17 »

NY / USA; _: . :.

"Pull handle for containers with. Tear-open lid"

The invention relates to a pull handle for containers with a tear-open lid, made of sheet metal from a handle part as well as a one-piece molded and articulated with that of Weakening lines in the lid surrounding the tear-off part connected ' The front part consists, which at the end furthest from the handle part with an extending at an angle to the pull handle Nose is equipped, which rests on an initial part of the weakening line and this Lifting of the pull handle stiffened by an edge bend on the handle part to initiate the opening process penetrates.

In known pull handles of the type mentioned above

L 9098A2 / 02 4 9 J.

8AD ORIGINAL

the edge angled satunic and. bent parallel to the plane of the pull handle, and extends from the nose of the front part of _t to nevertheless entire pull handle. During the lever-like loading of the pull handle when the opening process was initiated, the band, bent like a seam, was then subjected to tensile stress. Due to economic considerations, however, the pull handles are made of comparatively thin sheet metal to reduce the cost. for making the pull handle e in deferable. Limits clean. * hold. It has been shown, however, that the edge bend, which is bent like a seam, is often the case with such thin sheets. not enough to. the tensile stresses, which occur in the lever:. -. like stress on the pull handle occur, to take up - .. men. The pull handle is therefore bent very often, ».... . ■ ■ tear · stresses or breaks' - ■ _-:; ;; .- ^: ruling "- often even .the front part separates from the handle portion ,, because the thin sheet of the pull handle it fall short of the..... .., · _{..:. ^-;;;} - .. ■■ '■■ · ;; --i - ■, · .. ·.

The invention is based on the object of designing an M; e: handle of the type mentioned at the beginning so thatver-deirdBe-r:,. .. = loads during its use, especially with the lever-like stress when initiating the opening process, even without bending ■>. ο who can withstand tearing ο who can withstand breaking, if to. its manufacture metal sheets: - _c v. 'very low strength' can be used. ^ ^:? - · - .. ■ ■: ^ ^: Iy>:;, /

»098Α2 / 02Λ9 ^ ΐ

To solve this problem, the is indicated in the introduction said pull handle according to the invention in that the edge bend in the area of the outer edge of the handle part to a hem-like hand that runs parallel to this underneath the level of the pull handle, in the area of the front part but to a standing approximately perpendicular to the drag level rib-like hem edge is bent, which a bending of the pull handle when lever-like lifting of the handle part counteracts by absorbing the compressive stresses.

The main advantage of the new design of the pull handle is that the stresses incurred in ^r of the lever type using a result of the bending moments which occur are represented by the design of the Randabwinkelung in the front part in the form of compressive stresses and not, as previously collected in the form of train-stress . However, as experience has shown, a relatively thin sheet of metal is more resistant to compressive stress than it is to tensile stress.

In a further advantageous embodiment of the new Pull handle, which serves to increase its resistance, is used to form an articulated connection of the Pull handle with the tear-off part, a fastening part in the area of the front part is flat and of a

- 4 909842 / 02Ü9

Incision in the shape of a tMPorm file off to the nose of the pull handle, with at the ends of the two legs the Ü-IOrm of the incision approximately circular recesses are provided »and the legs of the U-shape of the incision are each tangential to the circular shape of the associated recess Gradients, so that in the area of the leg ends of the U-shape of the incision under the joint-like stress occurring hot stresses can be reduced.

In a further »advantageous embodiment of the new pull handle, the fastening part is parallel to the plane of the pull handle in the direction facing the lid, the offset budget is * arranged and connected to the rest of the front part via a sloping land area »whereby the U-shaped incision on the outer edge of the offset fastening part runs, while the recesses are arranged in the sloping Eandbereich, wherein Finally, the outer edge of the inclined edge area has an iMorm, the rectilinear part of which is the nose of the Eiehgriffes is facing and in which the recesses at the transition points of the straight part in the are arranged in an essentially circular arc part *

The aforementioned and other features of the pull handle designed according to the invention are described below with the aid of a

- - 5 909842/0249

nes embodiment shown in the drawings explained in detail.

Figure 1 shows a partial plan view of a container with a tear-open lid, which is equipped with the pull handle designed according to the invention.

FIG. 2 shows a partial sectional view on an enlarged scale of the container part according to FIG. 1, extending along the line 2-2 in FIG Cutting plane.

FIG. 3 shows an enlarged view from below of the embodiment according to the invention and shown in FIG 1 shown pull handle.

Figure 4 represents the pulling handle shown in Figure 3. ·. ■ . is, in a sectional view at the section plane running along the line 4 - 4 in Figure 3.

Figure 5 shows a further cable section considers the pull handle according to Figure 3 in along the line 5-5 in i ^l igur 3 extending cutting plane.

In Figures 1 and 2, part of the upper end of a

- 6- 909842/0249

nes container 10 to see. The container 10 has a container body 11, on which by means of a double fold 12 a cover 13 is attached. The cover 13 has a cover mirror 14, the predominant area of which is taken up by a tear-open part 15, which is surrounded by a scratch or weakening line 16 in the cover surface.

For separating the tear-off part 15 from the mirror 16, a pull handle 17 is used. The pull handle 17 is made in one piece from sheet metal and is comparatively smaller Manufactured strength and firmly connected to the tear part 15. To connect the pull handle 17 to the tear-off part 15 is a rivet 19, which is integral to the tear-open part 15 is molded.

As can be seen in particular from FIGS. 3-5, the pull handle 17 has a front part 19, which with equipped with a nose extending at an angle to the plane of the pull handle and on which a handle part 20 is molded. The nose 21 lies at the end of the front part furthest from the handle part 20. The handle part 20 is preferably designed like a finger ring and has a ring part 22 in which a Finger opening or ring opening 23 is located. The opening 23 is downwards towards the mirror

90984 2/02 4 9

angled mad aanach radially outward to a parab-IeI to the level of the pull handle, surrounding the 24 bent hem-like, which runs below the ring part 22 *

The outer circumference of the handle part 20 as well as the front part 19 is surrounded by an edge angled portion 25, however, this is in the area of the outer edge of the handle part 20 again in the sighting radially to the ring opening inwardly, so that a plane parallel to the pull handle Hem-like edge arranged below the pull handle

26 results. This tree-like outer edge 26 acts with the the hem-like edge 24 delimiting the ring opening and mechanically stiffens the handle part 20. At the same time will However, this design of the edges also means that sharp-edged sheet metal edges remain in the area of the handle part 20 avoided.

The area of the front part 19 is the edge development 25 in an increasing direction, »ie. so again in the direction of Plane of the pull handle bent back so that there is a rib-like edge that stands upright to the pull handle plane

27 (Figure 5) results in which in the parallel to the drag plane bent hem-like outer edge 26 of the handle part 20 merges. In this way it is achieved that in that upright, rib-like hem edge 27 compressive forces arise when the pull handle 17 as in ^ igur 2 in

909842/0249

dash-dotted lines indicated to introduce the a, Tear end at the handle detected and lever-like "claimed so that the nose penetrates the line of weakness in the lid surface. By creating a compressive stress the risk that the pull handle in the area of the front part 19 tears or is bent, largely reduced.

The edge angled portion 25 extends exclusively unchanged in the area of the nose 21. The edge angled portion 25 lies directly there with its outer or end edge 30 on the line of weakness 16 of the cover surface. It can be seen that the nose is curved in an arc shape is. However, this form is not binding and can be replaced by any other suitable form will.

To articulate the pull handle with the To enable mirror 14 or tear-open part 15, a fastening part / t9 is created in the front part 19. This Fastening part 29 is with respect to the plane of the pull handle offset in the direction of the cover surface, d. H. thus arranged in a recess 31. The perimeter of the Well 31 form a D-shape and go directly into an inclined edge region 32 over. The D shape

909842/0249

r- 9 -

is composed of an arcuate part 33 designed in the shape of a circular arc and a rectilinear part 34. Of the Arch part 33 opens in the direction of nose 21 or the straight part 34 faces the rabbit 21. The inclined edge region 32 merges into one at the end near the cover flat part 35 over, which lies approximately in the same plane as the lower edge of the upright rib-like Hemline 27.

In the plane 35 is an incision 36 in the form of a U-shape, which is open towards the nose 21, is provided. This incision surrounds a flat fastening part 37 At the points where the circular arc part 33 of the B-shape of the outer circumference of the inclined edge area in the straight part 34 passes over, there are approximately circular recesses 38 in the inclined edge region. The ends run into these circular recesses 38 the leg of the U-shape 36 from. Approximately in the middle of the fastening part 37 there is a receiving opening 40 through which the rivet 18 formed in one piece on the tear-off part 15 is passed through will. It should be noted that the ends 39 of the U-shaped incision 36 with respect to the approximately circular recesses 38 are so "arranged that the legs of the U-shape of the incision are essentially tangential to the circumference of the circular shape of the recesses 38. A radial course of the legs of the U-shape to

- 10 -

S0984 2/02 4 9

Circular shape of the recesses 38 is to be avoided »By this design of the incision and the recess "forms the edge of the circular recesses 38 almost steady continuous! continuation of the line of the incision 36 so that sharp points or corners are avoided, for example those without the circular recesses at the ends 39 of the legs of the U-shape of the incision 36 were created and with the lever-like stress of the pull handle is the cause of a zone-shaped end-limited notch stress-like load on the pull handle material would represent. Because of the circular Recesses 38 and their described position for U-shape of the incision 36, the creation of such stresses in the material of the pull handle is avoided and the Risk of tearing compared to previous designs of viewing grips continues to be significantly reduced.

As a result of their location, the circular recesses form 38 but finally also an interruption of the inclined land area 32 in the area of the transition of the circular arc portion 33 of the B-shape of the recess in the straight line! Ceil 34. This results in the articulated bending of the front part of the pull handle 17 in the hetoel-like Stress around a bending line 41, which is approximately level with the level of the pull handle and around a second Joint or bending line 42, which is approximately at the level of the

- $ 11 09842/0249

■■■■ - - - n ■ -. · ■■

recessed plane 35 extends (see Figure 3) This creates the straight line of the sloping edge area 34 to a bridge, which absorbs the bending stresses, which when pivoting around the bending lines 41 and 42 occur. By avoiding zone-shaped, narrowly defined bending stresses, there is a risk that the Fastening part 37 breaks off from the rest of the pull handle or tears off significantly reduced. The reason for achieving this advantage is to be seen in the fact that the ends 39 of the legs of the U-shape of the incision 36 run out tangentially into the annular recesses 38 and the special location of these circular recesses through which the bridging effect of the rectilinear inclined Eandbereiches 34 is achieved.

From a consideration of FIG. 2 it can be seen that, in order to open the container 10, the handle part 20 grips and must be raised. When this happens, it happens a pivoting of the pull handle around the bending or pivoting lines 41 and 42, so that a bending of the pull handle material in the area of the straight line 34 of the D-shape extending inclined edge area occurs. In this case, however, the fastening part 37 remains fixed to the tear-open part 15 by the action of the rivet 18 connected. This initial lever-like lifting of the

- 12 -

8098Λ2 / 0249

Pull handle 17 can easily be continued so far that the ring opening 23 of the handle part for inserting a Pingers free "before the nose 21 is effectively force-effective acts on the line of weakness 16. By plugging in a pinger in the ring opening 23 can, however, then a Sufficiently great force can be transmitted to the nose 21 so that the end edge of the edge bend 25 "which forms the nose" is in firm contact with the tear-open

™ part 15 "or a zone-shaped" limited area of the Line of weakness 16 occurs. By continuing the upward directed lever-like movement of the handle part 20 of the. Pull handle 17 finally becomes a downward one Pressure force exerted on the tear-open part 15 directly at the area of the weakening line, which is so large that that the line of weakness in the mirror 14 tears. After this initial tearing of the line of weakness 16 can Tear-off part 15 in a simple manner from the cover surface 14 can be detached by applying a "pull on the pull handle 17 is exercised, under the influence of which the remaining part of the line of weakness tears »

- 13 -

90984 02/02

Claims (8)

- 13 patents 1) Pull handle for containers with a tear-off lid, made of sheet metal from a handle part and an integrally molded one and articulated with that of lines of weakness in the Lid surrounded tear part is connected to the front part, which at the end furthest from the handle part .equipped with a uase running at an angle to the pull handle which rests on an initial part of the line of weakness and this initial part with lever-like lifting the pull handle on the handle part reinforced by an edge bend to initiate the tear-open process penetrates, characterized that the edge bend (25) in the area of the outer edge of the handle part (20) to one below the Pull handle plane parallel to this hem-like Edge (26) in the area of the front part (19), however, to a rib-like standing approximately perpendicular to the plane of the pull handle Hem edge (27) is bent, which is a bending of the pull handle (17) when lifting the lever-like Handle part counteracts by absorbing compressive stresses 2) pull handle according to claim 1, characterized that the rib-like hem edge (27) of the front part (19) in the area of, the handle part (20) furthest end at two distant from each other - 14 909842/0249 -H- lying ends in the edge bend (25) merges, whose end edge (30) rests on the weakening line (16). 3) pull handle according to claim 1 and / or 2, characterized in that the handle part (20) is designed like a finger ring and that the inner edge of the ring part (22) has a Randalswinkelung that to a under the handle part (20) parallel to the plane of the pull handle extending, hem-like hand (24) is curved. 4) Pull handle according to one or more of claims 1 "to 3», characterized in that the ! Earth part (19) with a recess (40) for receiving a fastening element (18) for connecting the pull handle (17) to the tear-off part (15) is equipped. 5) pull handle according to one or more of claims 1 to 4, characterized in that the recess (40) is in one serving as a fastening part (37) approximately flat area of the front part (19) is arranged, which is formed by an incision (36) a to the nose (21) open ü-lorm is surrounded to a To achieve an articulated connection between the pull handle (17) and the tear-open part (15). 909842/0249 6) pull handle according to one or more of claims 1 to 5, characterized in that at the ends (39) of the "two legs of the U-shape of the incision (36) in the front part (19) is approximately circular Recesses (38) are provided and that the legs of the U-shape of the incision are each tangential run to the circular shape of the associated recess to those in the area of the leg ends or the U-shape of the incision are called the joint-like stress on the pull handle (17) to reduce any stresses occurring between the front part and the fastening part (20). 7) pull handle according to one or more of claims 1 to 6, characterized in that that the fastening part (37) is arranged offset parallel to the plane of the pull handle in the direction of the cover mirror (14) and over a sloping edge area (32} 33f 34) merges into the front part (19), and that the U-shaped incision (36) on the edge of the offset fastening part (37) runs, while the recesses are arranged in the inclined edge region. 8) pull handle according to one or more of claims 1 to 7, characterized in that the The outer edge of the inclined edge area (32) has a D-shape, the straight part (34) of which the rabbit (21) is - 16 - 909842/0249 ORIGINAL INSPECTED is reversed, and that the recesses (38) at the transition points of the rectilinear part "is arranged in the essentially circular arc part (33) are. 9842/0249 ORlSTMAL SUSPECTED Blank page