CN109960359B

CN109960359B - Fastening device

Info

Publication number: CN109960359B
Application number: CN201711436576.2A
Authority: CN
Inventors: 李长兴; 陈宏仁; 黄佳庆; 林怡岩
Original assignee: Lenovo Enterprise Solutions Singapore Pte Ltd
Current assignee: Lenovo Enterprise Solutions Singapore Pte Ltd
Priority date: 2017-12-26
Filing date: 2017-12-26
Publication date: 2024-02-02
Anticipated expiration: 2037-12-26
Also published as: CN109960359A

Abstract

A fastener (16, 40, 60a, 60b, 60c, 100) is disclosed that includes a manually operable controller (46, 66, 106), an actuator (50, 92, 110) coupled to the controller, and an elastically deformable lock coupled to the actuator(54, 82, 122), the controller being movable between an unlocked position and a locked position, in the unlocked position, the lock has a first longest width (W ₁ 、Y ₁ 、Z ₁ ) Is provided, in the locked position, the lock is deformed by the actuator to have a second longest width (W ₂ 、Y ₂ 、Z ₂ ) Is provided in the second configuration of (a).

Description

Fastening device

Technical Field

The present invention relates to a fastening device, in particular such a fastening device: which is suitable for, but not limited to, the joining of two articles (e.g two substrates) can releasably fastened to each other.

Background

Various products are shipped from the factory to retailers or customers. For example, in the case of a computer server, the mount engages with the body of the server. Due to space constraints, a tool-less design may be employed in which screws are not used to fasten the bracket to the body. However, it has been found that after transport on the rack with the cables mounted, some of the racks may come off or loosen from the main body, leaving the server not ready for use by the customer, or may be mistaken as defective.

It is therefore an object of the present invention to provide a fastening device in which the above-mentioned disadvantages are alleviated, or at least a useful alternative is provided for the trade and the public.

Disclosure of Invention

According to the present invention there is provided an apparatus for holding a plurality of members in place, the apparatus comprising an actuator and a lock coupled to the actuator, wherein the actuator is movable between a first position in which the lock has an unlocked configuration having a first width to engage the plurality of members and a second position in which the lock is deformed by the actuator into an unlocked configuration having a second width greater than the first width to hold the plurality of members in place.

Drawings

A fastener according to an embodiment of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:

FIG. 1 illustrates fastening a component to a motherboard of a computer server by means of fasteners in accordance with an embodiment of the present invention;

FIG. 2A shows the blank filler disengaged from the base housing of the computer server;

FIG. 2B shows the blank filler of FIG. 2A secured to a base housing of a computer server;

FIG. 3A shows a module loosely engaged with a motherboard in a chassis housing of a computer server;

FIG. 3B shows a module secured by fasteners to a motherboard in a base housing of the computer server of FIG. 3A;

FIGS. 4A-4C illustrate the manner in which a fastener according to another embodiment of the invention operates;

fig. 4D is a transverse cross-sectional view along the J-J line of fig. 4B.

Fig. 4E is a transverse cross-sectional view along the K-K line of fig. 4C.

FIG. 5 shows a fastener for fastening two panels together according to yet another embodiment of the invention;

FIG. 6 shows an exploded view of the fastener of FIG. 5;

FIGS. 7A and 7B illustrate perspective and side views, respectively, of the fastener of FIG. 5 in an unlocked configuration;

FIGS. 7C and 7D show perspective and side views, respectively, of the fastener of FIG. 5 in a locked configuration;

FIG. 8A shows a top view of the fastener of FIG. 5 in an unlocked configuration;

FIG. 8B shows a longitudinal cross-sectional view of the fastener of FIG. 8A;

FIG. 8C shows a transverse cross-section along line C-C of FIG. 8B;

FIG. 8D shows a transverse cross-sectional view along line D-D of FIG. 8B;

FIG. 9A shows a top view of the fastener of FIG. 5 in a locked configuration;

FIG. 9B shows a longitudinal cross-sectional view of the fastener of FIG. 9A;

FIG. 9C shows a transverse cross-sectional view along line E-E of FIG. 9B;

FIG. 9D shows a transverse cross-sectional view along line F-F of FIG. 9B;

FIGS. 10A and 10B illustrate longitudinal cross-sectional views of a fastener in an unlocked configuration and a locked configuration, respectively, according to another embodiment of the present invention;

FIG. 11A illustrates a first method of joining the fastener of FIG. 10A to a substrate;

FIG. 11B illustrates a second method of joining the fastener of FIG. 10A to a substrate;

FIG. 11C illustrates a third method of joining the fastener of FIG. 10A to a substrate;

FIG. 12 shows a longitudinal cross-sectional view of a fastener according to yet another embodiment of the present invention engaged with a substrate in a first manner and ready to be fastened to another substrate;

FIGS. 13A and 13B illustrate a second manner of joining the fastener of FIG. 12 to a substrate;

FIG. 13C is an enlarged view of the portion of FIG. 13B marked by oval boundaries; and

fig. 14 illustrates a third manner of joining the fastener of fig. 12 to a substrate.

Detailed Description

Fig. 1 shows a module 10 fastened to a motherboard 12 of a computer server 14 by a fastener 16 as a fastening device according to an embodiment of the present invention. Fig. 2A shows a blank 18 with a fastener 16. The body of the fastener 16 is received through an existing tool aperture in the blank filler 18 and is receivable through an existing tool aperture 20 at the base housing 22 of the computer server 24 for releasably securing the blank filler 18 with the base housing 22. Fig. 2A shows the blank 18 disengaged from the base housing 22, while fig. 2B shows the blank 18 fastened to the tool aperture 20 (not visible in fig. 2A) in the base housing 22 via the fastener 16. Fig. 3A shows module 26 loosely engaged with motherboard 28 in a base housing 30 of the computer server, and fig. 3B shows module 26 with fasteners 16 fastened to motherboard 28 in base housing 30 of the computer server of fig. 3A.

Fig. 4A-4C illustrate the manner of operation of a fastener, generally indicated at 40, according to another embodiment of the present invention, adapted to, but not limited to, releasably fasten two panels 42, 44 together. Fastener 40 includes a manually operable thumbscrew head 46, with thumbscrew head 46 secured to a mandrel 48 extending along a central longitudinal axis L-L of fastener 40. The lower end of the spindle 48 is secured with a generally rectangular plate 50 which is arranged vertically, meaning that both major surfaces of the plate 50 face sideways. The length of the horizontal side of the plate 50 is a. Thumbscrew head 46, spindle 48, and rectangular plate 50 are fixed relative to one another for concurrent rotational movement about a central longitudinal axis L-L of fastener 40. The rectangular plate 50 is accommodated in a space 52 of an elastically deformable member 54, which member 54 may be made of an elastically deformable material (e.g. rubber). The spindle 48 is housed within a body 49.

When the rectangular plate 50 is in the elastically deformable member 54 and in a position relative to the elastically deformable member 54, as shown in fig. 4B and 4D, the longest width of the elastically deformable member 54 is W ₁ This allows the lower end 56 of the fastener 40 and the elastically deformable member 54 to pass through the common aperture 58 of the two plates 42, 44. Thus, fig. 4A, 4B, and 4D illustrate thumbscrew head 46 in an unlocked position and fastener 40 in an unlocked configuration. When thumbscrew head 46 (and thus spindle 48 and rectangular plate 50) is rotated 90 about central longitudinal axis L-L, rectangular plate 50 will assume the position shown in FIGS. 4C and 4E within elastically deformable member 54 and relative to elastically deformable member 54, whereby space 52 is enlarged by rectangular plate 50 such that elastically deformable member 54 elastically deforms such that it has a ratio W ₁ Large longest width W ₂ And is also larger than the diameter of the holes 58 of the two plates 42, 44. With this arrangement, the two plates 42, 44 are fastened to each other by the fastener 40. Fig. 4C and 4E thus illustrate thumbscrew head 46 in a locked position and fastener 40 in a locked configuration. When elastically deformable member 54 is deformed thereby, it presses against rectangular plate 50 and thus holds rectangular plate 50 (and thus thumbscrew head 46) in the locked position until an external force acts on thumbscrew head 46, such as by a user turningThe moving finger rotates screw head 46.

To allow the two plates 42, 44 to disengage from each other, the thumbscrew head 46 of the fastener 40 (and thus the mandrel 48 and rectangular plate 50 secured thereto) is rotated 90 ° back about the central longitudinal axis L-L to return the rectangular plate 50 to the position shown in fig. 4B and 4D, whereby the space 52 within the elastically deformable member 54 is allowed to return to an undeformed shape and size, as shown in fig. 4B and 4D, whereby the elastically deformable member 54 returns to its normal undeformed shape and size, as shown in fig. 4B and 4D, wherein the elastically deformable member 54 has the longest width W ₁ This allows the fastener 40 to be retrieved from the common aperture 58 of the two plates 42, 44, thereby allowing the two plates 42, 44 to disengage from one another. The elastically deformable member 54 thus acts as an elastically deformable lock that is operated by rotating the thumbscrew head 46 to effect tightening and loosening of the two plates 42, 44 when the lower portion of the fastener 40 is received through the common aperture 58 of the plates 42, 44.

Fig. 5 shows a fastener, generally designated 60, for fastening two plates 62, 64 together, in accordance with a further embodiment of the present invention, and having a central longitudinal axis M-M. The two plates 62, 64 have two holes, as shown in figure 5, which are aligned with each other to form a common aperture. As shown more clearly in fig. 6, the fastener 60 has a manually operable thumbscrew head 66 with two radially outwardly extending protrusions 68 to facilitate rotation of the thumbscrew head 66 by a user's hand. The thumbscrew head 66 has an upper surface 70 with a "lock" symbol 72 and an "unlock" symbol 74 that respectively indicate a locked position and an unlocked position disposed on the upper surface 70. The "lock" symbol 72 and the "unlock" symbol 74 are spaced 90 ° apart from each other on the surface 70.

The thumbscrew head 66 has an arcuate slot 76 in which is received a hollow, vertically extendable finger 78 secured to a generally cylindrical shackle 80 to permit relative rotational movement between the thumbscrew head 66 and the shackle 80 within the confines of the arcuate slot 76. For example, if the arcuate slot 76 subtends an angle of 90, the thumbscrew head 66 may be rotated up to 90 relative to the shackle 80 about the central longitudinal axis M-M of the fastener 60. An elastically deformable member 82 (which may be made of an elastically deformable material such as rubber) having a generally cross-shaped cross-section and four legs is received in a space 84 of the latch 80. The space 84 has four apertures 86, each of which allows one of the four legs of the elastically deformable member 82 to extend therethrough.

The thumbscrew head 66 is fixedly engaged with a pin 88 (which extends through a central longitudinal throughbore 90 of the shackle 80) for concurrent rotational movement about a central longitudinal axis M-M of the fastener 60 and relative to the shackle 80. A vertically oriented flat 92 is provided adjacent the lower end of the pin 88, the flat 92 being received in a slot 94 of the elastically deformable member 82.

Fig. 7A and 7B illustrate the shackle 80 and pin 88 of the fastener 60 received through the common aperture of the two plates 62, 64 with the fastener 60 in an unlocked configuration and the thumbscrew head 66 in an unlocked position. In this unlocked configuration, the elastically deformable member 82 of the fastener 60 is in its normal, undeformed configuration. When thumbscrew head 66 and pin 88 are rotated 90 ° about the central longitudinal axis M-M of fastener 60 and relative to shackle 80 from the unlocked position to the locked position, as shown in fig. 7C and 7D, whereby fastener 60 is also moved from the unlocked configuration to the locked configuration, elastically deformable member 82 is deformed by flat portion 92 of pin 88 by expanding the volume of slot 94 of elastically deformable member 82 such that two of the four legs of elastically deformable member 82 move away from each other relative to leg 83 and extend through corresponding aperture 86 of space 84 of shackle 80, whereby the longest width of elastically deformable member 82 is measured from Y ₁ (as shown in fig. 7B, wherein the two opposing legs 83 of the elastically deformable member 82 do not extend through the corresponding holes 86 of the space 84 of the latch 80) to Y ₂ (as shown in fig. 7D). Due to the longest width Y of the elastically deformable member 82 ₂ Greater than the diameter/width of the common aperture of the two plates 62, 64 that receive the fastener 60, the fastener 60 cannot disengage from the plates 62, 64 and thus the plates 62, 64 are fastened together by the fastener 60.

To allow disengagement of fastener 60 from plates 62, 64, thumbscrew head 66 and pin 88 are rotated 90 ° relative to shackle 80 from the locked position (shown in fig. 7C and 7D) back to the locked positionThe unlocked position (as shown in fig. 7A and 7B) whereby the flat portion 92 of the pin 88 is also rotated back 90 deg. so that the slot 94 of the elastically deformable member 82 returns to its normal smaller dimension. The two legs 83 of the elastically deformable member 82 are thus moved towards each other until they do not extend through the corresponding holes 86 of the space 84 of the catch 80. As a result, the longest width of the elastically deformable member 82 is equal to Y ₂ Reducing back to Y ₁ ，Y ₁ Smaller than the common aperture of the two plates 62, 64 in which the fastener 60 is received. The fastener 60 is thus moved from the locked configuration to the unlocked configuration and may then be disengaged from the plates 62, 64, allowing the plates 62, 64 to be disengaged from one another. The elastically deformable member 82 thus acts as an elastically deformable lock operable by rotating the thumbscrew head 66 to effect tightening and loosening of the two plates 62, 64.

Fig. 8A-8D show various views of the thumbscrew head 66 in an unlocked position and, thus, the fastener 60 in an unlocked configuration. As shown in fig. 8A, the vertically extending finger 78 of the shackle 80 is immediately beside the "unlock" symbol 74 on the upper surface 70 of the thumbscrew head 66, thus indicating that the fastener 60 is in the unlocked configuration. As shown more clearly in FIG. 8C, the thumbscrew head 66 of the fastener 60 includes two arcuate stops 96 that provide abutment surfaces for abutting the vertically extending fingers 78 of the shackle 80, thus limiting the extent of rotational movement of the thumbscrew head 66 relative to the shackle 80 about the central longitudinal axis M-M of the fastener 60. The two arcuate stops 96 are spaced 90 deg. apart from each other at both ends. The thumbscrew head 66 of the fastener 60 can thus be rotated up to 90 degrees only clockwise and counterclockwise relative to the shackle 80. When the fastener 60 is in the unlocked configuration as shown in fig. 8A-8D, the slot 94 is in its normally undeformed elongated shape with the opposing legs 83 of the elastically deformable member 82 not extending beyond the outer surface of the shackle 80. In this unlocked configuration, the longest width of the elastically deformable member 82 is Y ₁ 。

Fig. 9A-9D illustrate various views of the thumbscrew head 66 in a locked position, and thus illustrate the fastener 60 in a locked configuration reached by rotating the thumbscrew head 66 90 ° in a counterclockwise direction relative to the shackle 80 of the fastener 60, for example in the direction indicated by arrow G shown in fig. 9A and 9C. As shown in fig. 9A, the vertically extending fingers 78 of the shackle 80 are just proximal to the "locking" symbol 72 on the upper surface 70 of the thumbscrew head 66, thus indicating that the fastener 60 is in the locked configuration. As is apparent from a comparison of fig. 8C and 9C, when the fastener 60 is in the unlocked configuration, the vertically extending finger 78 abuts an abutment surface of one of the two arcuate stops 96 of the thumbscrew head 66, and when the fastener 60 is in the locked configuration, the vertically extending finger 78 abuts an abutment surface of the other arcuate stop 96 of the thumbscrew head 66.

When the fastener 60 is in the locked configuration as shown in fig. 9A-9D, and as shown more clearly in fig. 9D, the slot 94 expands from the flat 92 to a deformed expanded shape as the flat 92 rotates 90 °, with the two opposing legs 83 of the elastically deformable member 82 moving away from each other to extend beyond the outer surface of the shackle 80. In this locked configuration, the longest width of the elastically deformable member 82 is Y ₂ Its ratio Y ₁ And the common aperture of the plates 62, 64 through which the fastener 60 extends is long in diameter. When the fastener 60 is in this locked configuration, it cannot be retrieved from the plates 62, 64, so the plates 62, 64 are secured to one another by the fastener 60.

To allow the plates 62, 64 to be unfastened from one another by disengaging the fastener 60, the thumbscrew head 66 is rotated 90 ° relative to the shackle 80 about the central longitudinal axis M-M of the fastener 60 in the opposite direction, i.e., in the clockwise direction, as indicated by arrow H in fig. 8A and 8C, until the fastener 60 returns to the unlocked configuration as shown in fig. 8A-8D. The longest width of the elastically deformable member 82 is then taken from Y ₂ Reduced to Y ₁ Thereby allowing the fastener 60 to separate from the plates 62, 64, thereby allowing the plates 62, 64 to disengage from one another.

Fig. 10A and 10B illustrate a fastener, generally designated 100, for fastening two plates 102, 104 together, having a central longitudinal axis P-P, in accordance with yet another embodiment of the present invention. The two plates 102, 104 have two holes that are aligned with each other to form a common hole, as shown in fig. 10A and 10B.

The fastener 100 has a manually operable lever 106, the lever 106 being pivotally engaged with one longitudinal end of a stem 108 extending along a central longitudinal axis P-P of the fastener 100. At the other longitudinal end of the rod 108, a conical portion 110 is integrally formed, wherein the wider end 110a of the conical portion 110 is furthest from the lever 106. The stem 108 (with the taper 110 secured thereto) is linearly movable along its length and along a central longitudinal axis P-P of the fastener 100 within the body 112 housing the stem 108. The stem 108 is also fixedly engaged with the platform 114. Around the rod 108, a spring 116 is provided, with a longitudinal upper end of the spring 116 abutting a ceiling surface 118 of the body 112 and a longitudinal lower end of the spring 116 abutting a top surface 120 of the platform 114. An elastically deformable lock 122 having a plurality of legs 124 (only two of which are shown in fig. 10A and 10B) is coupled to the body 112. The elastically deformable lock 122, and in particular the leg 124, is made of an elastically deformable material, such as rubber or nylon.

Fig. 10A shows the fastener 100 in an unlocked configuration with the lever 106 in a lower unlocked position, the spring 116 in an unstretched configuration, the taper 110 furthest from the body 112, and the leg 124 in its undeformed configuration with the free ends of the leg 124 closest to each other and the furthest distance between the free ends of the leg 124 (and thus the longest width of the lock 122) being Z ₁ . When the fastener 100 is in this unlocked configuration, with the lever 106 in the unlocked position, due to Z ₁ Smaller than the diameter of the common aperture of the two plates 102, 104, the tapered portion 110 and the resiliently deformable lock 122 may be accommodated by the aligned apertures of the plates 102, 104, with the lower end of the body 112 being located on the upper surface of the plate 102.

The user may move the fastener 100 from the unlocked configuration to the locked configuration by rotating the lever 106 90 ° in a clockwise direction through the rotation axis 126, the lever 106 being connected with the stem 108 about the rotation axis 126. Thus, the lever 106 pivots from a lower horizontal orientation as shown in fig. 10A to a raised vertical orientation as shown in fig. 10B. The axis of rotation 126 is perpendicular to the central longitudinal axis P-P of the fastener 100.

Thus, when lever 106 is rotated 90 from its lower horizontal orientation to its raised vertical orientation, stem 108 (with taper 110) and platform 114 move linearly relative to body 112 and lock 122 along the length of stem 108 and along the central longitudinal axis P-P of fastener 100 and further into body 112, compressing spring 116. While the spring 116 tends to move the stem 108 (with the tapered portion 110) and the platform 114 away from the body 112, this is prevented by the lower portion 128 of the lever 106 being located on the top surface 130 of the body 112. Although the top surface 130 of the body 112 has an opening 132 through which the stem 108 extends, the lever 106 cannot be pulled into the body 112 because the lower portion 128 of the lever 106 is larger than the opening 132. Thus, the fastener 100 is maintained in the locked configuration as shown in fig. 10B.

When the fastener 100 is in the locked configuration as shown in FIG. 10B, the outer surface of the taper 110 bears against the legs 124 of the lock 122 and moves the free ends of the legs 124 away from each other, increasing the furthest distance between the free ends of the legs 124 (i.e., the longest width of the lock 122) to Z ₂ Which is greater than the furthest distance Z between the free ends of the legs 124 when the fastener 100 is in the unlocked configuration ₁ And is large and larger than the diameter of the common hole of the two plates 102, 104. Thus, when the fastener 100 is in the locked configuration, the free ends of the legs 124 abut the lower surface of the plate 104 and prevent the fastener 100 from separating from the plates 102, 104.

To move the fastener 100 back to the unlocked configuration, the lever 106 is rotated about the rotation axis 126 from the raised vertical orientation in a counterclockwise direction to a lower horizontal orientation as shown in fig. 10A. The stem 108 (with the taper 110 secured thereto) moves linearly relative to the body 112 and lock 122 and away from the body 112 along the length of the stem 108 and along the central longitudinal axis P-P of the fastener 100 under the biasing force of the spring 116. The lever 106 is thus biased by the spring 116 to a lower horizontal orientation, i.e., an unlocked position. As the taper 110 moves away from the legs 124 of the lock 122, the legs 124 move toward each other, reducing the furthest distance between the free ends of the legs 124 back to Z ₁ As shown in fig. 10A. Thus, as shown in fig. 10A, the fastener 100 returns to its unlocked configuration, allowing the fastener 100 to disengage from the plates 102, 104, and subsequently allowing the plates 102, 104 to separate from one another.

Fig. 11A-11C illustrate three methods of joining the fastener 100 to the plate 102. In the method shown in fig. 11A, the body 112 is hard-mounted into the plate 102 by using a stamping jig. In this way, the body 112 of the fastener 100, and thus the fastener 100, is permanently secured to the plate 102. This represents a long-term solution.

In the method shown in fig. 11B, the body 112 of the fastener 100 is received by the ring magnet 134, and the magnet 134 is positioned on the lower lip 136 of the body 112 of the fastener 100. Since each body 112 of the fastener 100 and the plate 102 are made of ferromagnetic material, the magnets 134 magnetically secure the fastener 100 to the plate 102. This represents a recyclable solution, as both the magnet 134 and the fastener 100 may be disengaged from the plate 102 for other uses.

In the method shown in fig. 11C, a short term solution is shown in which the lower annular surface of the body 112 of the fastener 100 is secured to the plate 102 by an adhesive 138.

Fig. 12 shows a variation 60a of the fastener 60 engaged with the plate 62 by hard-fitting a portion of the outer surface of the shackle 80a into the plate 62. The fastener 60a is thus permanently secured to the plate 62.

In the arrangement shown in fig. 13A-13C, the latch 80b of the fastener 60b (as another variation of the fastener 60) has a middle annular, downwardly facing high friction surface 140 for securing the fastener 60b to the plate 62 by friction fit. If desired, fastener 60b may be removed from plate 62 by forcibly pulling fastener 60b away from plate 62.

In the arrangement shown in fig. 14, the shackle 80c of the fastener 60c (as a further variant of the fastener 60) carries a ring magnet 134c, the ring magnet 134c being used to magnetically secure the fastener 60c to the plate 62 made of ferromagnetic material.

It will be appreciated that the above only shows and describes examples of where the invention may be practiced, and that modifications and/or alterations may be made thereto without departing from the spirit of the invention.

It is also to be appreciated that certain features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, various features of the invention, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable subcombination.

Claims

1. An apparatus for holding a plurality of members in place, the apparatus comprising:

actuator and method for manufacturing the same

A lock coupled to the actuator and configured to lock the actuator,

wherein the actuator is movable between a first position in which the lock has an unlocked configuration having a first width engaging the plurality of members and a second position in which the lock is deformed by the actuator into a locked configuration having a second width greater than the first width to hold the plurality of members in place;

wherein the actuator is within a slot of the lock and the space within the slot is enlarged by moving the actuator from the first position to the second position such that the lock is deformed by the actuator.

2. The device of claim 1, wherein the lock is made of an elastically deformable material.

3. The device of claim 1, wherein the actuator is movable between the first position and the second position by rotation about a central longitudinal axis of the device.

4. The device of claim 1, wherein the actuator is rotatable relative to the lock about a central longitudinal axis of the device.

5. The device of claim 1, further comprising a body, wherein the actuator is movable relative to the body between the first position and the second position.

6. The device of claim 1, wherein the lock comprises at least two legs movable relative to each other.

7. The device of claim 1, further comprising a body engaged with one of the plurality of members.

8. The device of claim 7, wherein the body is fixedly engaged with the one of the plurality of members.

9. The device of claim 7, wherein the body is releasably engaged with the one of the plurality of members.

10. The device of claim 9, wherein the body is releasably engaged with the one of the plurality of members by a magnet.

11. The device of claim 7, wherein the body is engaged with the one of the plurality of members by an adhesive.