FR2717780A1 - Packaging especially for spark plugs. - Google Patents

Abstract

Packaging in particular for spark plugs for internal combustion engines, or for preheating for diesel engines, of the type comprising a cover (3) and a shell (2) intended to receive the products to be packaged, said shell comprising side walls and a bottom opposite to the cover, the cover and the shell having corresponding peripheral edges (4, 5), intended to be fixed together one on the other, to close the packaging, thus forming a peripheral flange (10), characterized by that said shell comprises on at least one of its side walls at least one projecting portion forming a foot (7) adapted to cooperate with the edge (9) of the peripheral flange (10) forming a complementary support means for allow the packaging to be placed in an approximately vertical position.

Description

i

  The present invention relates to packaging

  especially for spark plugs of an internal combustion engine

  diesel engine preheating

  thermoformed plastic shell intended to receive

  see the products to be packaged and a lid. The shell and the cover each have a peripheral rim allowing their welding one on the

  the other along this peripheral edge.

  Currently known in the prior art such packages consisting of a shell in

  thermoformed plastic (for example polychlo-

  vinyl rure) with appropriately shaped housings

  to receive the products to be packaged and for maintenance

nir in position.

  This shell is generally made of transparent plastic to allow the vision of the packaged products, and their development, these packages being mainly intended to be presented in

store shelves.

  In certain cases, the housings intended to receive the products to be packaged are preformed during the shaping of the shell and the products are placed in their housings once this operation is completed before the installation of the cover ensuring the maintenance of the

packaged products.

  In other cases, the thermoformed shell is shaped directly on the products to be packaged by heating a sheet of thermoformable plastic and

  application thereof directly on the products.

  The cover may consist of a simple sheet of cardboard on which the following shell is glued

  a peripheral border having a flat surface.

  Also known in the state of the art

  covers made of a sheet of plastic material

  made for example from PVC which is thermally welded

  welding or high frequency welding on the peripheral border

  hull risk thus ensuring complete closure of the packaging. Still other packages have thermoformed plastic covers which have a shape adapted to better hold the packaged products.

  or to a better closure of the shell-cover assembly

  key. Note that in this case, the cover and the shell can be formed in one piece and connected by a

flexible hinge.

  Such packaging is intended for the presentation-

  tion of products for sale in shelving and display

  therefore a hooking device in their upper part

  re. This packaging has a drawback

  when you want to present them other than by suspension

if we.

  Indeed, the weld along the peripheral border

  risk of the shell creates around the closed packaging, a protruding rib on its side which prevents the packaging from standing in an upright position and therefore from being presented to

  the sale standing on a display.

  The present invention therefore aims to provide a packaging capable of being suspended on a rod but also capable of being placed standing stably and

autonomous on a horizontal plane.

  To this end, the invention relates to a packaging

  in particular for spark plugs of an internal combustion engine

  sion, or preheating for diesel engine, of the type comprising a cover and a shell intended to receive the products to be packaged, said shell comprising side walls and a bottom opposite to the cover, the cover and the shell comprising corresponding peripheral flanges, intended to be fixed together on one another, to close the packaging, thus forming a peripheral flange, characterized in that said shell comprises on at least one of its side walls at least one protruding portion forming a suitable foot to cooperate with the edge of the peripheral flange forming an additional support means to allow

  place the packaging in an approximately vertical position.

  According to other characteristics: - the cover further comprises on its external face, means for holding a packaging of the same shape placed on it, - the holding means carried by the face

  outer cover are formed by a peripheral rib

  that projecting comprising an interruption in receiving the foot of another package of the same shape placed on it, - a side wall comprises at least one inclined recessed pan provided with a recess perpendicular to the bottom of the shell, the inclined pan defining a part corresponding re-entry of the shell, - the location of the bottom of a package on the cover of another package on which it is intended to be placed, is delimited on the one hand by the peripheral rib of the cover and on the other hand , by at least one additional rib provided on the cover and intended to cooperate with at least one re-entrant part of the shell, - the contact zone of the foot, with a bearing surface is in the vicinity of the bottom of the shell, - the products to be packaged are in an area bordered by the wall of the shell carrying the foot, thereby improving the stability of the packaging in the upright position, - the shell has a recess, the bottom of which is in contact with the cor corresponding to the cover, a hooking orifice being formed in this bottom and in

this area of the lid.

  According to one embodiment: - the foot extends over an intermediate part of the side wall, According to another embodiment: - the same side wall has two protruding portions forming feet, The packages according to the present invention being stackable with a lateral support ensuring the stability of the stack; this allows an easy reassortment of the shelves by simultaneous placement of several products, the packages being able to be maintained in the form of a compact block. This advantage is appreciated in particular when placing the packaging on display rods by threading through the device

of each of them.

  The invention will be better understood and others

  advantages will appear on reading the description which

  will follow, given solely by way of example and made with reference to the accompanying drawings, in which: - Fig.1 is a side view of a package according to the invention presented standing; - Fig.2 is a front view of the same packaging according to the invention with partial cutaway of the cover;

  - Fig.3 is a side view of two packages

  ges according to the invention superimposed; and - Fig.4 is a back view of another

  embodiment of a packaging according to the invention.

  The package 1 shown in Fig.1 comprises a shell 2 and a cover 3, both of plastic, thermoformed. They are for example made of polyvinyl chloride (PVC) or polyethylene terephthalate (PET). The shell 2 has four side walls and a flat bottom, and has at its periphery a

almost flat edge 4.

  The cover 3 also has at its periphery

  laughs a roughly flat rim 5 of the same dimension as the peripheral rim 4 of the shell 2. The cover 3 and the shell 2 are welded along these peripheral rims 4 and by a heat-welding or high-frequency welding process.

  quence or any other equivalent welding or bonding

slow.

  The shell 2 has on one of its side walls

  rales 6, a protruding portion forming a foot 7 made of material, provided with a projecting contact area 8 with a bearing surface S, placed at the same level as the outer edge 9 of a peripheral flange 10 resulting from the assembly of the flanges 4 and 5. The contact zone 8 of this foot 7 is in the vicinity of the bottom of the shell 2 and is therefore at a maximum distance from the flange 10 taking into account the thickness of the packaging, to ensure

  maximum stability of the whole set standing.

  In this embodiment, the foot 7 extends over an intermediate portion of the length of the side wall 6 of the shell 2. The side wall 6 carrying the foot has at its ends around the foot 7, two inclined faces 11a, llb forming an angle of about 60 with the plane of the cover and extending from the bottom of the

  shell 2 towards the peripheral edge 4.

  At the bottom of the shell 2, the sides

  inclined lla, llb respectively have hooks

  elements 12a and 12b perpendicular to the bottom of the hull 2.

  The bottom of the shell 2 has two rows 13a, 13b, parallel to housings shown in Figure 2

  and distributed on both sides of foot 7, coming from my-

  with the shell 2 allowing to hold by latching

  Highly elastic the products to be packaged, for example here spark plugs for internal combustion engines which, placed head to tail, are held at their threaded caps and their connection terminals. One of these

  candles is shown in Figure 2 in phantom.

  On the side wall of the shell 2 opposite the wall carrying the foot 7, the shell 2 comprises a recess 14, the bottom of which is in contact with the corresponding zone of the cover, a hooking orifice 15 being formed in this bottom and in this area of the cover and allowing the passage of a hanging rod (not shown) for

hang the packaging.

  The cover 3 has, in the vicinity of its edge, a peripheral rib 16 projecting from the material by thermoforming. Additional projections or ribs 17a and 17b provided on the outer face

  of cover 3 and of the same height as the peripheral rib

  rique 16, complete it to define a zone 18 whose surface is adapted to receive the bottom of the hull of a

  other packaging of the same shape placed flat on top.

  As can be seen in Figure 3, shown

  as two packages of the same shape superimposed as described above, the peripheral rib 16 cooperates with the portions close to the bottom of the side walls of the shell 2 to ensure lateral support of the package

placed on it by interlocking.

  Similarly, the projections 17a and 17b cooperate respectively with the recesses 12a and 12b of the sides

inclined lla, 11b.

  It is easy to see that, depending on the shape of the bottom of the shell 2, the position of the projections 17a and 17b can be adapted and possibly eliminated or

  add new ones as needed.

  As shown in Figure 2 and as will be better understood with reference to Figure 3, the peripheral rib 16 has in its area opposite the foot 7, an interruption 19 to allow the passage of the foot of a

  other packaging of the same shape placed on it.

  It will also be noted that the housings for holding the products to be packaged have been placed as close as possible to the foot 7 and the edge 9 facing the latter so that the center of gravity of the assembly formed by the packaging and its content is as low as possible when the packaging is placed upright on the contact area 8 of the foot 7 and the edge 9 forming an additional support element. In Fig. 4, we can see another mode of

  production of packaging according to the invention.

  In this example, the shell 2 has in its middle, a single row 20 of housings integrally formed with the shell 2 making it possible to maintain by engagement

  elastic products to be packaged, in the middle.

  On each side of this row of housings, on a side wall of the shell 2, two

  protruding portions forming feet 21.22.

  These two feet have equal heights and cooperate with the edge of the peripheral flange 10 to allow the packaging to be placed in a vertical position. In such a package, the peripheral rib of the cover also has an interruption, intended to receive the feet 21, 22 of another package of the same type.

shape placed on it.

  According to another following embodiment

  invention (not shown), one can design a packaging

  lage comprising at least one foot on several of its walls thus allowing the packaging to be placed

stable in different positions.

Claims (10)

  1. Packaging, in particular for spark plugs for internal combustion engines, or for glow plugs for diesel engines, of the type comprising a cover (3) and a shell (2) intended to receive the products to be packaged, said shell comprising side walls and a bottom opposite the cover, the cover and the shell having corresponding peripheral edges (4,5), intended to be fixed together one on the other, to close the packaging,   thus forming a peripheral flange (10), characteristic   laughed in that said shell comprises on at least one of its side walls at least one projecting portion forming a foot (7) adapted to cooperate with the edge (9) of the peripheral flange (10) forming a support means to allow the packaging to be placed in roughly vertical position.   2. Packaging according to claim 1, character-   laughed in that the cover (3) has on its external face, means for holding a similar packaging form laid on it.   3. Packaging according to claims 1 and 2,   characterized in that the holding means carried by the external face of the cover (3) are formed by a peripheral rib (16) projecting comprising an interruption (19) for receiving the foot (7) from another similar packaging shape placed on it.   4. Packaging according to any one of the claims   previous cations, characterized in that at least one side wall comprises at least one recessed pan (lla, llb) reentrant provided with a recess (12a, 12b) perpendicular to the bottom of the shell, the inclined pan defining a part   corresponding re-entry of the hull.   5. Packaging according to claims 3 and 4,   characterized in that the location of the bottom of a package on the lid of another package on which it is intended to be placed is delimited on the one hand by the peripheral rib (16) of the lid and on the other hand , by at least one additional rib (17a, 17b) formed on the cover (3) and intended to cooperate with at least one re-entrant part of the shell (2).   6. Packaging according to any one of the claims   previous cations, characterized in that the products to be packaged are in an area bordered by the wall (6) of the shell (2), carrying the foot (7), thus improving the   stability of the packaging when standing.   7. Packaging according to any one of the claims   previous cations, characterized in that the foot (7) extends over an intermediate part of the side wall (6).   8. Packaging according to any one of the claims   cations 1 to 6, characterized in that the same side wall   rale (6) has two projecting portions forming feet.   9. Packaging according to any one of the claims   previous cations, characterized in that the contact zone (8) of the foot (7) with a bearing surface is at near the bottom of the hull (2).   10. Packaging according to any one of the res-   dications previous, characterized in that the shell (2) has a recess (14) whose bottom is in contact with the corresponding area of the cover, a hooking orifice (15) being formed in this bottom and in this lid area.