阅读说明：本技术 离心机转子 (Centrifuge rotor ) 是由 S·库纳特 C·克诺斯佩 于 2018-12-12 设计创作，主要内容包括：本发明提供了一种离心机转子(10),在该离心机转子(10)中,离心机转子(10)的下部(12)与盖(14)之间的闭合件(32)已经被改进,使得正确的单手操作是可能的。特别地,能够仅使用一只手再次闭合和拆卸闭合件(32)。这意味着闭合件(32)具有简单的结构并且也能够被成本有效地生产。(The present invention provides a centrifuge rotor (10) in which centrifuge rotor (10) the closure (32) between the lower part (12) of the centrifuge rotor (10) and the lid (14) has been improved such that correct one-handed operation is possible. In particular, the closure (32) can be closed and detached again using only one hand. This means that the closure (32) has a simple structure and can also be produced cost-effectively.)

1. A centrifuge rotor (10) comprising a lower portion (12) and a lid (14), wherein the centrifuge rotor (10) has a rotation axis (D), wherein the lid (14) can be placed on the lower part (12) in a closing direction (S) along the rotation axis (D), and is removable in a disassembly direction (L) along said axis of rotation (D), wherein, when the lid (14) is closed, there is a closure (32) between the lower part (12) and the lid (14), characterized in that at least one element of the lower part (12) and the cover (14) comprises at least one first undercut (34), at least one projection (36) being arranged on the other element of the cover (14) and the lower part (12), wherein the at least one first undercut (34) engages the at least one protrusion (36) when the lid (14) is closed.

2. The centrifuge rotor (10) according to claim 1, characterized in that the first undercut (34) is designed to extend perpendicular to the rotation axis (D) and/or the first undercut (34) is designed to extend all the way around the rotation axis (D).

3. Centrifuge rotor (10) according to one of claims 1 or 2, characterized in that a closure aid is arranged, which is preferably designed as a chamfer (62,70) or a rounding by means of which the projection (36) engages with the first undercut (34) when the lid (14) is placed onto the lower part (12), wherein preferably the projection (36) is provided with a chamfer (62) or rounding directed towards the lower part (12) and/or a chamfer (70) or rounding directed towards the lid (14), which chamfer or rounding is arranged in front of the first undercut (34) with respect to the closing direction (S).

4. The centrifuge rotor (10) according to claim 3, characterized in that the chamfer (62,70) has an angle in the range of 20 ° to 80 °, preferably 45 ° to 75 °, in particular an angle of 60 °, with respect to the rotation axis (D).

5. The centrifuge rotor (10) according to one of the preceding claims, characterized in that the protrusion (36) has a chamfer (64) or a rounding directed towards the cover (14) and/or the first undercut (34) has a chamfer (72) or a rounding directed towards the lower part (12).

6. The centrifuge rotor (10) according to one of the preceding claims, characterized in that two opposite projections (36) are formed with respect to the rotation axis (D).

7. The centrifuge rotor (10) according to one of the preceding claims, characterized in that the protrusion (36) has a preload directed towards the first undercut (34), which preload is preferably provided by a spring, in particular by a molded spring (46).

8. The centrifuge rotor (10) according to one of the preceding claims, characterized in that the protrusion (36) is arranged on a lever (24) having a fulcrum (38), wherein the fulcrum (38) is preferably arranged on the cover (14).

9. Centrifuge rotor (10) according to claim 8, characterized in that the centre of mass (M) of the lever (24) is located above the fulcrum (38) with respect to the closing direction (S).

10. The centrifuge rotor (10) according to claim 8 or 9, characterized in that the lever (24) comprises two lever portions (48).

11. The centrifuge rotor (10) according to one of claims 8 to 10, characterized in that the projection (36) has at least one contact point (a) with the first undercut (34) when the cover (14) is closed, a radial distance from the rotation axis (D) to the contact point (a) corresponding at most to a radial distance from the rotation axis (D) to the fulcrum (38), wherein the radial distance from the rotation axis (D) to the contact point (a) is preferably the same as the radial distance from the rotation axis (D) to the fulcrum (38).

12. The centrifuge rotor (10) according to one of the claims 8 to 11 in conjunction with claim 7, characterized in that at least one side (54) of the spring (46) is anchored inside the lever (24).

13. The centrifuge rotor (10) according to one of the claims 8 to 12, characterized in that the fulcrum comprises a bearing shaft (38), the bearing shaft (38) being mounted in a blind hole (40) on one side, wherein there are two levers (24) and the respective blind hole (40) is arranged rotationally symmetrical with respect to the rotation axis (D).

14. The centrifuge rotor (10) according to any of claims 8 to 13, characterized in that the cover (14) comprises a circular cutout (20) for fastening the centrifuge rotor (10) in a centrifuge, wherein the lever (24) has a concave shaped face (66) continuing the circular cutout (20) and pointing towards the rotation axis (D), wherein the lever (24) is preferably arranged such that: the concave-shaped face (66) does not protrude inwardly into the circular cutout (20) when the cover (14) is closed.

15. The centrifuge rotor (10) according to one of the preceding claims, characterized in that the cover (14) comprises a second undercut (23) as a handle for carrying the centrifuge rotor, wherein the second undercut (23) preferably protrudes with respect to the cover (14).

16. The centrifuge rotor (10) according to one of the preceding claims, characterized in that after the first undercut (34) with respect to the closing direction (S), there is preferably an aerosol-tight seal (30) between the lid (14) and the lower part (12) such that the closure (32) is arranged with respect to the seal (30) outside a sample space (26) formed between the lid (14) and the lower part (12).

Technical Field

The present invention relates to a centrifuge rotor according to the preamble of claim 1.

Background

Centrifuges, particularly laboratory centrifuges, use centrifuge rotors to separate components of a sample centrifuged therein using inertia. In this process, a greater rotational speed is used to achieve a high separation rate. In this case, a laboratory centrifuge is a centrifuge whose rotor operates at the following rates and is typically placed on a bench: preferably at least 3,000 revolutions per minute, preferably at least 10,000 revolutions, in particular at least 15,000 revolutions per minute. In order to be able to place the centrifuges on a work bench, they have in particular a form factor of less than 1m × 1m × 1m, i.e. their installation space is limited. Preferably, the depth of the instrument is limited to a maximum of 70cm here.

The sample is usually centrifuged at a certain temperature. For example, such samples containing proteins and organic substances must not be overheated, and therefore the upper limit of temperature control of such samples is within the range of +40 ℃ according to the standard. In addition, some samples were cooled in the range of +4 ℃ according to the standard (water anomaly started at 3.98 ℃).

In addition to such predetermined maximum temperatures (e.g., standard assay temperatures of about +40 ℃ and, for example, +4 ℃), additional standard assay temperatures, for example, +11 ℃, are provided to test whether the cooling system of the centrifuge is operating in a regulated manner below room temperature at that temperature. Furthermore, for reasons of occupational safety, it is necessary to prevent the touching of elements having a temperature greater than or equal to +60 ℃.

Generally, active and passive systems can be used for temperature control. The active cooling system has a coolant circuit that controls the temperature of the centrifuge bowl, as a result of which the centrifuge rotor and the sample container received therein are indirectly cooled.

Passive systems are based on exhaust assisted cooling or ventilation. This air is directed directly past the centrifuge rotor, resulting in temperature control. In this process, air is drawn through openings in the centrifuge bowl, wherein the drawing occurs independently as a result of the rotation of the centrifuge rotor.

The samples to be centrifuged are stored in sample containers, and these are driven in rotation by means of a centrifuge rotor. In this process, the centrifuge rotor is usually rotated by means of a vertical drive shaft driven by an electric motor. There are various centrifuge rotors that can be used depending on the intended use. Here, the sample container can directly contain the sample or a separate sample receptacle containing the sample is inserted into the sample container, so that a plurality of samples can be centrifuged simultaneously in one sample container.

In general terms, such centrifuge rotors usually comprise a lower part and a cover, wherein when the cover is closed an inner space is formed between the lower part and the cover, in which inner space a sample vessel can be arranged for centrifuging a sample in a suitable centrifuge. When the sample vessels are arranged in the centrifuge rotor at a fixed angle, this is a so-called fixed angle rotor.

For connection to the centrifuge, the lower part is usually provided with a hub which can be coupled to a drive shaft of the centrifuge driven by a motor. The cover is again designed such that it can be normally closed against the lower part.

Typically, there is an aerosol tight seal between the lid and the lower part, where, for example, fromCompany fixed angle rotor FA-45-48-11 (can be from e.g. Inc.)Used in laboratory centrifuge 5430R) comprises a disk-shaped lid in which a radially outwardly opening groove is arranged, wherein the groove contains an O-ring as a sealing means. When closed, the covers are inserted into corresponding substantially vertically extending recesses in the lower part and are supported downwards, wherein the O-rings are clamped between the grooves and the side walls of the lower part, so that a seal is achieved. By means of the aerosol-tight seal, the centrifuge container can be easily transported and handled without the risk that the sample may contaminate the centrifuge or the enclosed parts.

The closure between the lid and the lower part can be configured in various ways.

First of all, centrifuge rotors are known in which a locking nut is arranged on the cover so as to be freely rotatable and the lower part comprises a partial hub around which a corresponding thread is wound. One example of such a centrifuge rotor is fromModel F-45-32-5-PCR. In order to close the lid against the lower part, the lid has to be placed onto the thread and screwed onto the thread by means of a locking nut. This requires two hands, namely one hand to hold the lower part and one hand to place on and tighten the locking nut. Furthermore, the locking nut must complete several rotations until the closure member is fixed, which is associated with increased effort.

In order to reduce this effort, the following centrifugal rotors are known: a bayonet catch is used in the centrifuge rotor such that only about half of the rotation of the corresponding locking nut needs to be completed until the closure is secured. One example of such a centrifuge rotor is fromModel number FA-45-18-11. In this case, the closure is in the form of a drive thread, the pitch angle of which is selected such that the locking nut and its locking cam are automatically rotated until just before the closed position due to the self-weight of the lid. Furthermore, positive locking is provided by means of a rubber-elastic seal, as described in EP 2024097 a 1. As a result, only one hand is required to place the cap, after which the locking nut is automatically rotated until before the locking position. The locking nut then still only needs to be rotated a few further degrees to lock, wherein the rubber-elastic seal brings about locking together with the indentation in the bayonet-catch groove opposite the locking cam. However, this last step still requires two hands.

Disclosure of Invention

It is therefore an object of the present invention to improve a centrifuge rotor with regard to the closure between the lower part of the centrifuge rotor and the lid, such that a true one-handed operation is possible. In particular, it is intended to close and detach the closure using only one hand. Preferably, the closure is intended to be of simpler construction and to be produced more cost-effectively.

This object is achieved by a centrifuge rotor according to the claim of claim 1. Advantageous developments are set forth in the dependent claims and in the following description in conjunction with the drawings.

The inventors have realized that this problem can be solved in a surprising manner in a particularly simple manner if a lock in the form of a first undercut is present, wherein the projection engages between the cover and the lower part of the centrifuge rotor. The lid and the lower part are thus interlocked in a removable manner. As a result, the cover can be easily arranged on the lower part and removed therefrom again.

The tab may be removed from the first undercut to create an open state. Here, the projection can be preloaded so that it is possible to easily produce the closed state by means of the lock.

The centrifuge rotor according to the invention comprises a lower part and a cover, wherein the centrifuge rotor has a rotational axis, wherein the cover can be placed onto the lower part along the rotational axis in a closing direction and can be removed along the rotational axis in a dismounting direction, wherein, when the cover is closed, there is a closure between the lower part and the cover, and it has the following features: at least one element of the lower part and the cover comprises at least one first undercut, wherein at least one protrusion arranged on the other element of the cover and the lower part engages when the cover is closed.

In an advantageous development, a first undercut is provided which is designed to extend perpendicularly to the axis of rotation. As a result, the lock is also particularly fixed during operation of the laboratory centrifuge.

In an advantageous development, a first undercut is provided which is designed to extend all the way around the axis of rotation. As a result, the lid may be arranged on the lower portion in any orientation with respect to the rotational axis of the centrifuge rotor.

In an advantageous development, a projection is provided which has a chamfer or rounding directed downward, and/or the first undercut has a chamfer or rounding directed toward the lid. As a result, the closing process is made easier.

In an advantageous development, provision is made for a closure aid to be arranged, which is preferably designed as a chamfer or rounding, by means of which the projection is arranged to engage with the first undercut when the lid is placed on the lower part, wherein preferably the projection has a lower-directed chamfer or rounding and/or a cap-directed chamfer or rounding, which is arranged in front of the first undercut with respect to the closing direction. As a result, the lid can be easily locked to the lower part, which means improved one-handed operation.

In an advantageous development, the chamfer has an angle in the range of 20 ° to 80 °, preferably 45 ° to 75 °, in particular an angle of 60 °, with respect to the axis of rotation. As a result, the closure assistance mechanism is particularly effective.

In an advantageous development, a projection is provided, which has a chamfer or rounding directed toward the lid, and/or the first undercut has a chamfer or rounding directed toward the lower part. As a result, the lid is pressed onto the lower part during centrifugation. Both of which enhance the seal between the cover and the lower part and prevent the cover from swinging over the lower part.

In an advantageous development, two opposite projections are formed with respect to the axis of rotation. As a result, the closure is constructed symmetrically and is therefore particularly fixed even at the high speeds of laboratory centrifuges. It is also possible to arrange three to five symmetrical projections, which means that one-handed operation will still be possible. However, although the more tabs that are used, the more secure the closure becomes, it also becomes more cumbersome.

In an advantageous development, the projection has a preload directed towards the first undercut, the preload preferably being provided by a spring (recoil spring), in particular by a molded spring. As a result, the locking can be produced particularly securely, so that one-handed operation is improved.

In an advantageous development, the projection is arranged on a lever having a fulcrum, wherein the fulcrum is preferably arranged on the cover. As a result, the projection can be actuated particularly easily.

In an advantageous development, the center of mass of the lever lies above the fulcrum with respect to the closing direction. As a result, there is a particularly strong locking even at high speeds of the centrifuge rotor, since the moment of inertia combined with the centrifugal force ensures that the projection does not come out of engagement with the first undercut. Furthermore, the pressure on the optionally present recoil spring is released during centrifugation, which increases its service life.

In an advantageous development, a lever, preferably an injection-molded part, is provided, which comprises at least two lever parts. As a result, the lever can be produced with a very low weight, preferably at least partially hollow, which means that the weight of the centrifuge rotor can be kept low. The lever member may be injection molded. As an alternative to injection molding, milling or die casting may also be used. It does not necessarily have to create a cavity.

In an advantageous development, the projection has at least one contact point with the first undercut when the cover is closed, wherein a radial distance from the axis of rotation to the contact point at most corresponds to a radial distance from the axis of rotation of the rotor to the fulcrum of the lever. As a result, no forces are generated when pulling the lid away from the lower part and during centrifugation, which can result in the locking between the lid and the lower part being opened. Particularly preferably, the radial distance between the contact point and the axis of rotation is the same as the radial distance from the axis of rotation to the pivot point. The contact point is then positioned vertically below the fulcrum. By means of this arrangement the lever arm becomes zero and no forces occur during centrifugation that would cause the lever to open. As a result, such forces also do not need to be compensated by springs or centrifugal forces during centrifugation. Such a defined contact point can be produced, for example, by a slightly rounded projection in the region of the contact point.

In an advantageous development, at least one side of the spring is anchored inside the lever. As a result, the spring is particularly securely mounted.

In an advantageous development, the fulcrum comprises a bearing shaft which is mounted in a blind hole on one side, wherein there are two levers, and the respective blind holes are arranged rotationally symmetrically with respect to the axis of rotation. As a result, no imbalance occurs during operation. The through hole for the bearing shaft is then preferably arranged on the other side.

In an advantageous development, the cover comprises a circular cut-out for fastening the centrifuge rotor in the centrifuge, wherein the lever has a concave-shaped face which continues the circular cut-out and points towards the rotation axis, wherein the lever is preferably arranged such that the concave-shaped face does not protrude inwards into the circular cut-out when the cover is closed. As a result, the centrifuge rotor can be very easily installed in the centrifuge and at the same time, clearly indicate the locked state of the cover on the lower portion, thereby preventing an operation error. By continuing the concave shape of the cover and the lever, it is therefore possible to clearly recognize the closed state of the rotor cover, since if the cover is not properly closed, this visual continuation is not present, which can be easily visually noticed by the operator.

In an advantageous development, the cover has a second undercut which serves as a handle for carrying the centrifuge rotor, wherein the second undercut preferably protrudes with respect to the cover. As a result, the centrifuge rotor can be handled very comfortably without the risk that the lock between the cover and the lower part is detached during support (handling). This is further improved by the levers protruding with respect to the second undercuts, which means that they can easily be prevented from being actuated during support. In an extreme case, the second undercut in the region of the lever may be omitted.

In an advantageous development, a preferably aerosol-tight seal is present between the lid and the lower part after the first undercut with respect to the closing direction, so that the closure is arranged with respect to the seal outside the sample space formed between the lid and the lower part. The seal is preferably designed as a sealing element clamped between the cover and the lower part.

Independent protection is required for the centrifugation method using the centrifuge rotor according to the invention.

Drawings

The features and further advantages of the invention will become apparent from the following description of preferred embodiments, given purely by way of illustration, with reference to the accompanying drawings, in which:

figure 1 is a perspective view of a centrifuge rotor according to the present invention according to a first preferred configuration,

figure 2 is a cross-sectional view of the centrifuge rotor according to the invention according to figure 1,

figure 3 is a cross-sectional view of a detail of the closure of the centrifuge rotor according to the invention according to figure 2,

figure 4 is a cross-sectional view of a detail of the area Y of the closure of the centrifuge rotor according to the invention according to figure 3,

figure 5 shows the lower part of the centrifuge rotor according to the invention according to figure 1,

figure 6 shows a part of a cover of a centrifuge rotor according to the invention according to figure 1,

fig. 7 shows two different views of a part of a lever of a centrifuge rotor according to the invention according to fig. 1, an

Fig. 8 is an overview of the lever of the centrifuge rotor according to the invention according to fig. 1.

Detailed Description

Fig. 1-8 are various views of a centrifuge rotor 10 and components thereof according to the present invention.

It is clear that the centrifuge rotor 10 is as rotationally symmetrical as possible and comprises a lower part 12 and a cover 14, wherein the cover 14 is placed on the lower part 12 in a closing direction S parallel to the axis of rotation D and can be removed in a dismounting direction L parallel to the axis of rotation D.

The lower portion 12 includes a series of evenly spaced apertures or compartments 16 for receiving sample vessels (not shown), for example in the form of test tubes. Centrally arranged in the lower part 12 is a hub 18 comprising a bore 20 which is able to receive a drive shaft of a laboratory centrifuge (neither shown) by means of which the centrifuge rotor 10 can be driven. A carrying handle 22 comprising an undercut 23 is provided for gripping, the carrying handle 22 being formed on the hub 18 so as to protrude from the lid 14, by means of which the centrifuge rotor 10 can be gripped and handled without causing a loosening of the lid 14.

The lid 14 comprises two levers 24, each having an undercut 25 provided for gripping, wherein the levers 24 are arranged so as to be opposite each other and with equal spacing with respect to the rotation axis D.

A sample space 26 is formed between the lower part 12 and the lid 14 and is sealed in an aerosol-tight manner by an outer seal 28 and an inner seal 30, which outer seal 28 and inner seal 30 are arranged between the lower part 12 and the lid 14 and are each formed rotationally symmetrically with respect to the axis of rotation D. From this sample space 26, the compartment 16 and thus the individual sample vessels can be accessed.

Furthermore, a closure 32 is formed between the lower part 12 and the lid 14 and is shown in the detail views in fig. 3 and 4.

It is clear that the closure 32 is formed by two levers 24 and an undercut 34, in which undercut 34 a corresponding projection 36 of the lever 24 engages.

As shown in fig. 5, the undercut 34 is formed continuously in the circumferential direction, i.e., extends around the rotation axis D, and opens in the radial direction. It is thus a radially open circumferential groove 34.

The lever 24 is designed such that its center of mass M is located above the bearing 38 with respect to the removal direction L. In this case the bearing is a bolt 38, the bolt 38 being threaded into a blind bore 40, as shown in figure 6. This blind hole 40 is arranged in the carrier handle 22, and in particular so as to be opposite to the through hole 42, through which through hole 42 the bolt 38 can be screwed into the blind hole 40 by the lever 24. In this case, the blind hole 40 is arranged rotationally symmetrical.

To receive the lever 24, the cover 14 includes a recess 44, the lever 24 being arranged in the recess 44 so as to be tiltable about the bolt 38. In this case, the lever 24 is preloaded against the undercut 34, with respect to its projection 36, by a moulded spring 46, the moulded spring 46 being supported on the recess 44, as best seen in fig. 3.

As can be seen from fig. 7 and 8, the lever 24 is formed from two injection-molded parts 48 (the connecting seam of the two injection-molded parts 48 is not shown in fig. 8), wherein, in fig. 7, only one half 48 in each case is shown in two different perspective views. For manufacturing reasons, the lever is divided into two, since this makes plastic injection molding possible for the lever 24. Thus, the lever 24 can be provided with a cavity 50 for weight reduction without preventing them from being demolded. As an alternative to injection molding, for example, milling or die casting may also be used. In contrast, the lever 24 may also be integrally formed, not divided into two.

Furthermore, the lever 24 comprises a through hole 52 for the bolt 38. The molded spring 46 is mounted by one end 54 thereof in a recess 56. The other end 58 is free but is held on either side by tabs 60.

The projection 36 includes a first chamfer 62 directed in the direction of the lower portion 12 and a second chamfer 64 directed in the direction of the cover 14. Further, fig. 7 shows that the inner surfaces 66, 68 are grooved.

Fig. 2 and 4 show a first chamfer 70 formed on the lower portion 12 in front of the undercut 34 in the closing direction, and the undercut 34 includes a second chamfer 72 directed toward the lower portion 12.

The first chamfer 62 of the projection 36 and the first chamfer 70 of the lower portion arranged above the undercut 34 serve as a closing aid, since, when the lid 14 is pushed onto the lower portion 12 in the closing direction S, the projection 36 is automatically guided radially outwards from the axis of rotation D under the spring force of the spring 46 and passes the projection 74 on the lower portion 12 without the need to manually actuate the lever 24.

During operation of the centrifuge rotor 10, the lid 14 is pressed onto the lower portion 12 by the second chamfer 64 on the tab 36 and the second chamfer 72 of the lower portion 12 in the undercut 34. As a result, the pressure on the spring 46 is released, which increases its service life and also prevents the lid 14 from swinging on the lower part 12.

Fig. 3 and 4 also show that the contact point a between the projection 36 and the undercut 34 is located closer to the rotation axis D with respect to the center point of the bearing 38. As a result, neither the force that causes the cover 13 to be removed in the case of pulling in the removal direction L nor the force that causes the closure 32 to be removed during operation of the centrifuge rotor 10 exert any action. Alternatively, the radial distance between the contact point a and the rotation axis D and the radial distance from the rotation axis D to the fulcrum of the bearing 38 may also be set to be the same. Contact point a is then positioned vertically below the fulcrum. By means of this arrangement the lever arm becomes zero and no force is generated during centrifugation that would cause the lever 24 to open. As a result, such forces also do not need to be compensated for by the spring 46 or centrifugal force during centrifugation. Such a defined contact point a can be produced, for example, by a projection 36 which is slightly rounded (not shown) in the region of the contact point a.

By forming the centre of mass M above the bearing 38 during operation of the centrifuge rotor 10, the upper end of the lever 24 is pressed radially outwards, which means that the locking between the projection 36 and the undercut 34 is strengthened. In addition, the pressure on the spring 46 is thereby released.

Fig. 6 shows that the carrying handle 22 is formed around the recess 44 without the undercut 25. As a result, in the locked state, the lever 24 projects radially outward relative to the handle 22 (see fig. 1). As a result, correct locking is reliably indicated at all times.

In contrast, the inner surface 66 of the lever 24 has the same radius as the bore 20 in the region of the handle 22. As a result, the fasteners for connecting the centrifuge rotor 10 to the shaft (not shown) of the centrifuge motor can be easily actuated. Furthermore, considering the continuity of the concave axis of the inner surface 66 of the lever 24 and the hole 20, it is also possible to clearly identify the condition of correct locking (with reference to fig. 1), i.e. the condition of incorrect locking which the user is able to identify by means of a discontinuous concave shape, in contrast to the presence of an offset which is very easily perceived by the user's eyes.

In the locked state of the lid 14, the sample space 26 is formed on the lower part 12 in a completely aerosol-tight manner by means of the seals 28 and 30, since the closure 32 is located outside the sample space 26.

It is clear from the information set forth that the present invention provides a centrifuge rotor 10 wherein the closure 32 between the lower portion 12 and the lid 14 of the centrifuge rotor 10 has been modified such that proper one-handed operation is possible. In particular, the closure 32 can be closed and detached again using only one hand. This means that the closure 32 has a simpler structure and can also be produced more cost-effectively.

All features of the invention can be freely combined with each other, unless otherwise specified. The features described in the description of the drawings can also be freely combined with the remaining features as features of the invention, unless otherwise specified. The features of the claimed device can also be rewritten as method features as part of the method, and method features can also be rewritten as features of the centrifuge rotor as part of the centrifuge rotor. Thus, the centrifugation method using the centrifuge rotor according to the invention is specifically intended to be protected.

List of reference numerals

10 first preferred configuration of a centrifuge rotor according to the invention

12 lower part

14 cover

16 well or compartment for receiving a sample vessel

18 hub

20 bore in hub 18

22 carrying handle

23 undercut, second undercut for gripping the carrying handle 22

24 actuating lever

25 undercut for gripping the actuating lever 24

26 sample space

28 overseal seal between lower portion 12 and cap 14

30 inner seal between lower portion 12 and lid 14

32 closure between lower part 12 and lid 14

34 undercut, circumferential groove, first undercut in the lower part 12

36 actuating the projection of the lever 24

38 bearing shaft, bolt 38

40 blind hole

42 through hole

44 recess in the lid 14

46 recoil spring, molded spring

48 injection molded part of the actuating lever 24

50 actuate a cavity in the lever 24

52 actuating a through hole in the lever 24

54 one end of spring 46

56 actuate a recess for the spring 46 in the lever 24

58 the other end of spring 46

60 projection

62 first chamfer, closure assist mechanism for projection 36

64 second chamfer of projection 36

66. 68 inner surface of lever 24

70 first chamfer, closure assist mechanism on lower portion 12

72 second chamfer on lower portion 12

74 projection on lower portion 12

D axis of rotation D

L direction of detachment

M center of mass

S direction of closure