1. A metering and mixing device for a multi-component substance, comprising:
at least two associated cartridge accommodating devices for accommodating replaceable cartridges having individual substance components;
a discharging device for discharging the substance components from cartridges through component outlets by means of discharging pistons that plunge into the cartridge accommodating device or cartridges; and
a mixing device, which is connected to the component outlets, for mixing the discharge substance components, and outputting them in a mixed state, wherein:
at least one of the discharging pistons has a thread such that the discharging piston will be driven forward by the thread when the discharging piston is rotated relative to the cartridge accommodating device.
2. The metering and mixing device according to claim 1, comprising:
at least one cartridge, the at least one cartridge being configured as a tubular bag in which at least one substance component is located.
3. The metering and mixing device according to claim 1, wherein at least one cartridge accommodating device comprises:
a hollow cylinder.
4. The metering and mixing device according to claim 1, wherein at least one of the discharging pistons comprises:
a ventilation device.
5. The metering and mixing device according to claim 1, wherein the multi-component substance is an adhesive.
6. The metering and mixing device according to claim 1, wherein at least one discharging piston has an outer thread.
7. The metering and mixing device according to claim 6, comprising:
at least one cartridge accommodating device or cartridge in which the at least one discharging piston is located.
8. The metering and mixing device according to claim 1, wherein at least one of the cartridge accommodating devices or a cartridge inserted therein comprises:
a ventilation device.
9. The metering and mixing device according to claim 8, wherein, as the ventilation device, in a rear portion of an inner side of the at least one cartridge accommodating device or cartridge, at least one ventilation groove is countersunk.
10. The metering and mixing device according to claim 1, wherein the at least one of the discharging pistons comprises:
a linearly forward driven discharge bar.
11. The metering and mixing device according to claim 10, wherein the linearly forward driven discharge bar comprises:
a toothing with which a gear wheel or a thread can engage for forward driving the at least one discharging piston.
12. The metering and mixing device according to claim 10, wherein the linearly forward driven discharge bar comprises:
a thread with which a toothing can engage.
13. The metering and mixing device according to claim 1, comprising:
at least one cartridge, the at least one cartridge being a hollow cylinder in which at least one substance component is located.
14. The metering and mixing device according to claim 13, wherein the thread of the at least one discharging piston is in contact with a wall of the at least one cartridge.
15. The metering and mixing device according to claim 14, wherein at least one cartridge accommodating device comprises:
a hollow cylinder.
16. The metering and mixing device according to claim 15, wherein at least one discharging piston has an outer thread.
17. The metering and mixing device according to claim 16, wherein the thread of at least one of the discharging pistons is configured to be self-cutting, such that it itself cuts or punches a negative thread into the cartridge accommodating device or into a cartridge when inserted.
18. The metering and mixing device according to claim 17, wherein at least one of the discharging piston comprises:
a linearly forward driven discharge bar.
19. The metering and mixing device according to claim 18, wherein at least one of the at least one discharging pistons comprises:
a ventilation device.
20. The metering and mixing device according to claim 18, wherein at least one of the cartridge accommodating devices or a cartridge inserted therein comprises:
a ventilation device.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A motor vehicle front face, the front face (1) being capable of being fixed rigidly to front ends (2) of main longitudinal members (4) of a motor vehicle, the front face (1) comprising:
at least one cross member (8);
at least one lock (76) for fastening a bonnet of the motor vehicle, the or each lock (76) being rigidly fixed to the cross member (8);
an upper cassette half (12), located above the cross member (8), for fixing a radiator (7) in position;
means (52) for fixing the upper cassette half (12) rigidly to the cross member (8); and
a lower cassette half (14) for supporting the radiator (7), the lower cassette half (14) located below the cross member (8) and integral with the cross member (8);
wherein the cross member (8) is vertically located substantially level with said front ends (2) of the main longitudinal members (4).
2. The front face according to claim 1, further comprising:
at least two headlights (91), the cross member (8) being vertically located at a level lower than that of the headlights.
3. The front face according to claim 1, further comprising:
at least two impact absorbers (26) suitable for absorbing so-called medium-speed impacts, said impact absorbers (26) being inserted between opposite end portions (18) of the cross member (8) and the front ends (2) of the main longitudinal members (4).
4. The front face according to claim 3, wherein the medium-speed impact absorbers (26) comprise a block (28) made of a cellular material and a casing (30) in which the block of cellular material (28) engages, the casings (30) being formed by the end portions (18) of the cross member (8).
5. The front face according to claim 3, wherein the cross member (8) is an integrally moulded component made of a plastics material.
6. The front face according to claim 3, further comprising:
a rigid metal cross beam (10), said beam (10) having transverse ends (37) inserted between the impact absorbers (26) and the front ends (2) of the main longitudinal members (4).
7. The front face according to claim 3, wherein the cross member (8) is a hybrid component comprising a rigid metal insert and a plastics material overmoulded onto the metal insert.
8. The front face according to claim 1, further comprising:
two headlight housings and two support arms (16) to support the headlight housings, said support arms (16) being integral with the cross member (8).
9. The front face according to claim 8, wherein the support arms (16) are integrally moulded with the cross member (8).
10. The front face according to claim 8, wherein the support arms (16) are attached to the cross member (8).
11. The front face according to claim 8, further comprising:
means (46) for mounting the support arms (16) on upper longitudinal members of the vehicle.
12. The front face according to claim 8, wherein the headlight housings are rigidly mounted on the support arms (16) by lower regions, the front face (1) comprising means for mounting upper regions of the headlight housings to wings of the vehicle.
13. The front face according to claim 1, further comprising:
an absorber (72) provided to absorb leg-type pedestrian impacts, fixed rigidly along a frontal face (20) of the cross member (8).
14. The front face according to claim 1, wherein the means (52) for rigidly fixing the upper cassette half (12) to the cross member (8) are provided so as to be frangible in hip-type pedestrian collisions on the front of the vehicle.
15. The front face according to claim 1, further comprising:
means (69), for rigidly fixing the radiator (7) relative to the lower cassette half (14), suitable for allowing the radiator (7) to pivot together with the upper cassette half (12) in hip-type pedestrian collisions on the front of the vehicle.
16. The front face according to claim 1, further comprising:
a low channel absorber (74) for absorbing leg-type pedestrian impacts, rigidly fixed to the lower cassette half (14), at a distance below the cross member (8).
17. The front face according to claim 1, wherein the or each lock (76) is vertically located at a distance above the cross member (8) and is rigidly fixed to the cross member (8) by a rigid strut (90).
18. The front face according to claim 2, further comprising:
at least two impact absorbers (26) suitable for absorbing so-called medium-speed impacts, said impact absorbers (26) being inserted between opposite end portions (18) of the cross member (8) and the front ends (2) of the main longitudinal members (4).
19. The front face according to claim 1, wherein the lower cassette half (14) is free of direct contact with the upper cassette half (12).