TW200425193A - Key switch - Google Patents

Abstract

A key switch able to provide a clicking sensation via a simplified structure is disclosed. The key switch includes a key to be pressed down, a linkage assembly having first and second linking members with arms connected to outer ends thereof, and a bow-shaped elastic object connected between the arms of the first and second linking members, which is lowered by pressure of the key and is raised together with the key by release of a pressure acting on the key, the first and second linking members including a coupling recess and a coupling protrusion at inner end thereof and hinge protrusions at side surfaces thereof, the coupling recess and protrusion being engaged with each other to constitute a linkage rotating shaft, a frame including hinge hooks engaged with the hinge protrusions of the first and second linking members, and an FPC placed on the frame to recognize a key-input operation by contact with the linkage assembly. As the key is pressed down, the arms of the first and second linking members are rotated downward while linkage rotating shaft is raised, and the elastic object is gradually flattened and then bent into an upwardly convex bow shape, thereby providing a clicking sensation to a user and a restoring force to the linkage assembly.

Description

200425193 V. Description of the invention (1)-The technical field to which the invention belongs The present invention relates to a key used in an input device such as a key i of a personal computer (pC), and more specifically, it is intended to implement a ^ The keys are slim and slim, and with their simple configuration, they allow users to provide a high = keystroke rate and a snapback feel to provide reliable typing performance. The invention also relates to a button, which can simplify the structure and produce it by a simple process. 9 prior art

In recent years, the key body of the keyboard has been thinned and flattened to meet the demands of the > -type keyboard, and a high key tapping rate is required, and? Sin and clear card becomes salty, >,

The comfort and availability of a single keystroke has revealed a variety of keys used in such keyboards. For example, the keys described in Japanese Patent Laid-Open Publication No. 9-19 will be described later. Send you a way to expose the film In the above-disclosed Japanese guide, the key member for up and down movement of the keyboard body. The first and second connecting rods form a tooth profile in which δHai sprays together with each other. When the key body is pushed along the top of the body, the first and second parts are moved away and along the same time. The tooth profile of the first and second link members below the key body, when the key body is depressed, is provided in the key of the key public publication, and is used to lead the assembly including a first and a second link attached to it The lower surface is provided at an end of the lower surface and is connected to the one lower surface at an upper end thereof to slide. The reason is that when the upper ends of a link member slide against each other. With this movement, = can rotate and simultaneously mesh with one another between the body and a base shell

200425193

The actuation of Oakson will press one of the membrane switches to the contact of the key body, so when the thrust on the key body is released, the key position is pushed up at the same time. ’And the lowered actuator will contact one to recognize the keying action. The actuator, which is used for being pressed, will return to its normal body to allow the key body to return to its normal one. The key described above is advantageous in that the first and second link members do not start with an "X The forms intersect to provide a simplified link guide assembly. However, since the conventional press disclosed in the Japanese Patent Laid-Open Gazette is provided with a rubber actuator, the button will inevitably become larger. Moreover, since the key requires an additional rubber actuator made separately from the link members, the manufacturing process will be very complicated. In addition, since the button system uses an actuator, and the actuator system is configured to press only with a fork and provide only a linear repulsive force to the key body, it cannot form an acceptable click feeling. SUMMARY OF THE INVENTION The present invention has kept the above problems in the prior art in mind, and an object of the present invention is to provide a key, in which a plurality of link members of a link group assembly are provided at a connecting portion thereof. There is a connecting groove and a protruding piece as a rotating shaft to simplify the structure of the link assembly, and the link assembly and the device for returning a keyboard key body are integrated into one The ground is formed to achieve an acceptable click feel and a compact button. In order to achieve the above object, the present invention provides a button, which includes

200425193 Description of the invention (3) A keyboard key body, which is made by a user, includes a first link member and the m — an arm piece at the total end of the link group, and a second link member ^ ^ ^ is connected to An arm piece at one of the outer distal ends thereof, and a mu member having a bow-shaped elastic object connected to one of the first and second link members outside thereof are connected to cause it to descend so that a typed one can be recognized. And, the pressure of the key body will be the same as that of the key body, and by releasing the key body pieces-including the side surfaces of the first and second connecting rods One of the hinge projections, and the recess and the other one include a second link member disposed on the inner end of the hinge to form a link group; two ":: the part and the projection are mutually The two shots of the hinge projections of the first and second link members include meshing and -FPC (flexible printed circuit), which are placed in a plurality of hinged fishes; As soon as the key is pressed, the wooden one, when the direction is allowed; the key I 'axis two :: the arm of the link member with the second brother will surround the link 2 axis downward slave rotation, at the same time the rotation axis of the link group will be raised, and the spring will gradually flatten and then f curved into a bow shape protruding upwards ^ 'to provide users-bayonet answer Feel and provide a set force of the link assembly. The keyboard key body can be provided with a plurality of ribs at the lower surface, each of which includes an elongated link guide hole and a support cutout Each of the first and second link members such as j can be provided with a key body positioning protrusion and a supporting spherical protrusion at the outer end of each of the key bodies.

200425193 1. Description of the invention (4) * --- The pieces are guided along a connecting rod when the key body is depressed?丨 The hole slides, and the spherical protrusion is continuously supported by the key body from the day when the key body is positioned to its highest horizontal position. From the beginning, the elastic object may be provided with a contact protrusion at a lower surface thereof to reliably push a contact portion of the flexible printed circuit. The key further includes a link group bar provided below the key body, holding the key body and uniformly distributing the thrust force applied to the key body, wherein a rotation axis of one of the ^ support group bars is positioned to have Associated with the link group ^ = 2 = 90. An angle so that the link group bar does not interfere with the ^ rod group =. Embodiments The present invention will be described in more detail below with reference to examples accompanying drawings. Fig. 1 is an exploded view of a key according to the present invention, and Fig. 2 is a partial side view showing a connection portion between a key body 10 and a link member 20, and Fig. 3 A side cross-sectional view of one of the leaf springs 2 3 that makes the key body return to its normal position to contact the protruding piece 2 3 s. As shown in FIG. 1, the keys of the present invention are sequentially positioned from top to bottom in the drawing, including a key body 10, a link assembly 20, a j? Pc (flexible printed circuit) 30, And a bracket 40. The keyboard body 10 is installed on the upper surface of one of the keyboards, and numbers (0, 1, 2, 3, ---), letters (a, 3, c, a -, @, #, 一-), or function instructions (Esc, ctrl, Alt,

5149-5635-PF (Nl); Ahddub.ptd Page 10 200425193 V. Description of the invention (5)

Home, PgUp, ---). The key body 10 will be depressed by a user's finger to transmit a key signal to a PC, and then it will rebound to its normal position by the elasticity of the link assembly 20. The key body is generally formed into a nearly cubic shape 'and is formed of a hard plastic material. The connecting rod assembly 20 is used to guide one of the key bodies 10 to move up and down and adapt !! It is open at 24 at the end of the cymbal 1 and at the same time the blade is yellowed by the pressure of the key body 〇 2 3 It is flat, so it can provide the user with a click. The FP ^ O system contains a matrix circuit, which is suitable for the key body 1 with a bluffing key. Through one of its descending movements, the contact point is brought into contact with one of the link assembly 20 below. The symbol on the gold key body 10 of Datuzhi. When contacted, a two-pack, which is printed on the relevant media holder Γ, is used to connect the link assembly 20 to it-the connection i 〇. Μ 乇 木 system supports the connecting rod assembly 20 and therefore the supporting key is reflected in the above-mentioned ih „. The key body 10 is a component of the connecting rod assembly 20 in the JL structure. 1θ 4” is provided at the lower surface Four ribs 1 1 to allow the key body 10; knot to the link assembly 2. . The rib η system is formed into a rectangular shape: 1: 1. Two to key = 1. At the four corners of the lower surface, the guide hole 12 of the connecting rod group and a thin hole * surname + force 1 are formed into a series of extensions-arc, and will be: 餹-knife edge 1 3. The connecting rod group guide hole 12 is used to lower one of the key bodies 10 and the transport chain 27 is received therein. The cutout 13 is formed into an arc: moving horizontally. The connecting rod group supports the large-shaped pieces 28 to make contact, so that both ends of the key body 10 = the ball assembly 20 are still moving. The lowering motion will turn the connecting rod group 4 and move outward. , That is, when the key body 10 is lowered, even

5149-5635-PF (Nl); Ahddub.ptd Page 11 200425193 V. Description of the invention (6) Supports spherical side pieces 28 to support the side and upper surface,-support along the link group at the same time = will now describe the connection The rod assembly is 20%. The assembly 20 includes a pair of first link members, ... an arm du 24 is connected between the outer ends of the two, a pair of second ^ ^ pieces 22, and one of the arm pieces 24 is connected between the two Outer = cattle its connection to the first-and second connection = = Ϊ: All of the above are integrated into one body. ⑽Each m piece 21 is provided at its inner end-connecting concave turning convex piece C member 22 is provided at its inner end-rotating :: η portion and the rotating protruding piece are sprayed together A link group rotating shaft 26T is formed. When the key body 10 is lowered, the frame 21 rotates counterclockwise around the rotation axis 26T of the link group, and the member 22 rotates clockwise around the rotation axis m of the link group at the same time. Each rotation axis 26τ and the first J4 rod member 2 1 and 22 are at the outer end of the rod connecting rod set = 4 hinge projection 29 ′, and the hinge projection is held by the bracket 40-hinge key Hook 41 in. The reason is that when the key body 10, the inner ends of the first and second link members 2 丨 and 22 will move upwards around their hinge projections 29. The hinge projections 29 of the first and first link members 21 and 22 are symmetrically engaged in the hinge hook 41, so that when the first and second link members rotate with the "arm piece 24 around the link group, When the shaft 26T rotates outward, the hinge projection 29 will slide horizontally in the hinge hook 41. At this time, the key body positioning projection "and

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200425193 V. Description of the invention (7) The supporting spherical protruding member 28 is similarly rotated outward while descending around the rotation axis, and engages the key body positioning protrusion 27 and the supporting spherical protruding member 28. 丨 丨It will drop evenly to allow the key body to remain in the flat position continuously. '' The first and second link members 21 and 22 are provided with a stopper 20s at the opposite side of the side having the hinge projection 29 to prevent the link assembly 20 from being in the bracket 40 and Hinge projection 29-lowered in the same action. "The arm members 24 are respectively provided with key body positioning protrusions 27 and supporting spherical protrusions 28 at opposite sides thereof. Each key body positioning protrusion 27 has a circular cross section and is accommodated in a phase Corresponding link guide hole 丨 2. ^ ^ First, when the user's finger presses down the key body 10, the key body positioning protrusion 27 moves the ^ guide hole 12 outward and upward. Each support And the first right-handed penal 丨 the spherical protrusions 28 of the fork forks are all bow-shaped cross-sections, and are used to transmit the descending force of one of the key bodies to the remote welding group, the heart is 20. The spherical protrusions 28 support the constant contact . So 'when the key body 丨. When the key body 丨 is lowered, the key body 10 is lowered == Holds the spherical protrusion 2 8 and goes to the rain 祎 γ * 丨, dedicated to the branch while supporting along the link group = will move outward And rotate. Two = = Use ball 28 to move symmetrically along the arc-shaped orbital protrusion 27, because ^ 冓 = 21 and 22 key body positioning constant and one of the center line of key body 10 will, dry ，， ～ 成 20 的-中心线 will be positioned on the key body! 〇 Relative f key body positioning spherical projection 28 turns, so even if the link member = the link group rotation axis 26T Based on dry components - a relatively small angle of rotation of the 5149-5635-PF (Nl); Ahddub.ptd Page 13200425193

When Fang Yu turns, he can still get the keystrokes of the heavier keys. Since the connecting rod group supports the incision 13 from the initial movement, it is supported on the spherical protrusion 28, so it can reach a keystroke of * Ah. The leaf spring 23 is connected between the center portions of the arm members 24 of the first and second link members 21 and 22. The leaf spring 23 is bent into an arch shape 'to bias the arm member 24 of the link assembly 20 20 upward. The bracket 40 is provided with a hinge hook 41 capable of spraying the link assembly 20 hinge projection 29 to prevent the link assembly 20 from being separated from the bracket 40. Further, the bracket 40 is formed with a plurality of receiving holes to receive the link members 2 丨 and 22 therein. Fate yes. When the arm members 21 and 22 of the link members 21 and 22 are lowered by pressing down the key body 10, the link members 2 and 2 of the link assembly 2 will be completely accommodated in The receiving hole of the bracket 40 can reduce the total height of the final button. Now referring to Figs. 4A to 4C, an up and down movement of a key according to the present invention will be described. Figure 4A shows the key body 10. Since the key body 10 does not bear a thrust force, it can be positioned at the uppermost horizontal position by the rebound of the leaf spring 23. In this case, the key body positioning projections 2 7 are positioned at the inner and lower ends of the link guide holes 12. When a thrust force is applied to the key body 10, the supporting spherical protrusions 28 engaging the link group supporting cutouts i3 will rotate downward. In this way, the biasing force of the blade impingement 23 and the rebound force of the connecting rod assembly 20 can be further strengthened. As shown in FIG. 4B, 'When the relative connection points (psi and ps2) of the leaf spring 23 and the rotation axis point (PS) are arranged on a straight line, the lift force of the link assembly is 20% (violating the key Body lift) will suddenly decrease and therefore provide

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Feeling clicked. Next, the key body 10 will contact the bracket 40 to prevent the key body lj) from further descending, as shown in FIG. 4C. At this time, the contact protrusion 23s (refer to FIG. 3) of the blade bounce sauce 2 / will push Fpc 30, so that 硪 = one key input signal. At the same time, since the leaf spring 23 is bent into an inverted shape opposite to one of its normal shape, the lifting force acting on the connecting rod assembly 20 must be further increased. § When the thrust is released from the key body 10, the key body 0 and the link assembly 20 will return to their initial normal positions, as shown in Figure 4A. Now referring to FIGS. 5 to 7 to explain the principle of providing a click feeling and a restoring force by the keys according to the present invention. FIG. 5 shows the arm piece 24 (psi) of the first link member 21, the arm piece 24 (PS2) of the second link member 22, and the rotary protrusion 26 (PS), where these are positioned at One is the initial normal state (Figure 5A), one is the falling state (Figure 5B), and one is the lowest state (Figure%). In the initial state (FIG. 5A), a point (psi) indicating the arm member 24 of the first link member 21 and a point (PS2) indicating the arm member 24 of the second link member 22 will be positioned at the indicating rotation protrusion 26 Point (ps) above, and thus defines an inverted triangle. When the link members 21 and 22 are rotated downward, the length of a line segment defined between the point (PS1) and the point (PS2) will change, and at the same time a line defined between the point (PS1) and the point (PS) The segment and a line segment defined between the point (PS2) and the point (ps) will maintain a fixed length. The length change of the line segment (PS1-PS2) is caused by the arched leaf spring deforming into a linear state and a part of the arm member 24 connected to the leaf spring being bent and deformed. In Fig. 5A, which shows an initial state of one of the keys according to the present invention,

200425193 V. Description of the invention (ίο) 'It appears a force (F 1), which is caused by the springback force caused by the initial deformation of the leaf spring 23 and a part of the arm member 24 (resistance to one of these deformations) resistance). The magnitude of F1 is proportional to the length of a line segment (PS1-PS2), where the length can be changed as the first and second link members 21 and 22 rotate downward. The reason is that F1 will rapidly change (increase) during one of the initial decline phases of the bond body 10, and then gradually decrease. When the first and second link members 21 and 22 are rotated to a state such as shown in FIG. 5B, that is, when the points (PS1, PS2, and PS) are arranged on a straight line, the line segment ( psi — ps2) One of the changes in length becomes zero, and one of F1's magnitude is a fixed value. When the key body 10 is further lowered, the line segments (PS1 to PS2) will be reduced, and thus the magnitude of F1 will be reduced. More specifically, when the key body 10 is gradually lowered from its normal state, an n-trend that causes the arm member 24 to return toward the point (ps) indicated as the rotating projection 26 may be generated. F1 will decompose into a component F2, which tends to rotate the point (psi and ps2) upwards. That is, F2 can be expressed by the following equation: F2 = Flsin < 92, where F2 can further decompose a reaction force F3. F3 can be expressed by the following equation: F3 = F2c0S02. When a user pushes down the key body 10, the force felt is F3, and F3 changes according to F2, and the F2 changes by changing one of F1 and one of the link members 21 and 22. In the first two stages, F1 can be rapidly increased by rapidly changing the length of a line segment (psi-ps2), and thus F3 can be rapidly increased. When the rate of change of one of the line segments (PS1-PS2) decreases, the rate of increase must also decrease. When the link members 2 丨 and 22 rotate downward, an angle of 0

5149-5635-PF (Nl); Ahddub.ptd Page 16 200425193 V. Description of the invention (11) ♦ The 1 series will increase moderately while an angle 0 2 will decrease rapidly, making f 2,-_ And therefore F3 decreases rapidly. In a state shown in Figure 5B, where 0 2 becomes zero, the points (PS1, PS2, and PS) are arranged on two straight lines, and a reaction force F3 decomposed from F1 becomes zero, where It is caused by the change of the length of the leaf spring 23 and the deformation of a part of the arm member 24. As a result, the rate of change of F 3 suddenly increases because only one reaction force 'caused by a lifting force generated by the deformation of the leaf spring is left, so that it can provide the user with a feeling of *-^ 17 荅. When the key body 10 is further lowered from one of the positions shown in FIG. 5B, F3 will act as a negative force to pull the key body 10 downward, which can be seen from the% chart _ out 0 if there is no extra at this time To increase the key body 丨 0, the key body 10 will not return to its normal position. When the key body 10 is lowered to its lowest horizontal position shown in FIG. 5C, the contact projection 23s provided at the lower surface of the leaf spring 23 will be connected to the FPC contact portion, so that the leaf spring 23 is rapidly deformed. The reason is that the deformation of the blade 23 will allow the key body 10 to return to its normal position. s Figure 6 is a diagram showing the relationship between 1 Q strikes applied to the key body. The thrust and a keystroke

For example, a "blank key", or a "press on the" composite key ", please refer to Figure 7 to explain the implementation to (Space bar), a" Shift "(Enter) key, etc. are more common Bigger-the so-called key 0 is to allow the link group assembly 20 support _

5149-5635-PF (Nl); the entire bottom of the Ahddub.ptd composite key Table

200425193 V. Description of the invention (12): Two ΐ ΐ conversion: the area of the composite key to increase the connecting rod assembly. J: Under such a dangerous situation, the link assembly 20 is positioned below the key = key of: part 'and an additional link bar is set below the support to support the remaining part. Foot & Yu. As shown in the picture, the connecting rod 60 is made of-steel wire ^-one of the rectangular shapes on the lower side of the opening. The connecting rod 60 is made up of 50 without being connected by the connecting rod assembly 50/80: π: the thrust of the failure is used to make the upper thrust evenly applied to the key body. The entire area of the key body 10. In this specific embodiment, the link assembly 50 includes a first: 51 and a second link member 52. The stomach is arranged in J pairs along its length direction, and the heart link members are arranged symmetrically. Then the meaning of the two connecting rod members is that the angle of the increase is large, so that the liver is larger. The heart of a basic point of contact _ " £ body time 'is between leaf spring 23 complex number of people and pair: the rate of change of Xiao I degree will decrease' and thus reducing its service can ° and resistance to various size changes . When the link members are asymmetrically configured, the blade shell will be kept as small as possible, and its service life will be improved 1: between-the rate of change in length will increase, between taxis In the two rk examples, since q (1. 疋 μ is located at the inner end g: of the connecting rod members, it has a standby angle m ^ of about 90 relative to the connecting rod 60 and a rotation axis of about 90 ' Therefore, the connecting rod 60 does not interfere with the connecting rod assembly 50. When the Tian 3 company purlin and the connecting rod assembly are positioned to interfere with each other, it is necessary to

5149-5635-PF (Nl); Ahddub.ptd Page 18 200425193 V. Description of the invention (13) Reduce the size of the connecting rod assembly. Therefore, when a key body is pressed locally, it will likely degrade the push performance of one of the key bodies. In order to overcome this problem, this specific embodiment will prevent the link bar and the link group assembly from interfering with each other, and thus allow the link group assembly to be considerably enlarged. Furthermore, the arrangement of the link assembly 5 Q and the link bar 60 can be implemented in various ways. That is, a link bar 60 and a link group can be replaced with each other, or two link bars 60 and a link group assembly 50 provided between the two links 60 can be provided. As mentioned above, the structure of this rod assembly is

Production, in which the knots are raised pieces. The invention is to provide a button and a simplified connecting link member, which can be achieved-the device includes an intermeshing # ′ can be connected by simplifying the connecting device to the first low manufacturing cost easily a connecting recess and a connecting

The disclosure is as above, but it is not intended to be used, without departing from the spirit of the present invention, the scope of protection of the present invention shall prevail. Although the present invention has been defined by the preferred embodiments, anyone skilled in the art and the scope can make changes and retouching, as defined by the scope of the attached patent application

200425193 Brief description of the drawings. Figure 1 is an exploded perspective view of a key according to the present invention; Figure 2 is a partial side view showing a connection structure between a rib of a key body and a link member; Fig. 3 is a sectional view of a leaf spring having a plurality of contact protrusions according to the present invention; Figs. 4A to 4C are side views and schematic views of a key according to the present invention, and Fig. 4A shows the The button is at its initial position, Figure 4β shows that the button is in a lowered state, and Figure 4C shows that the button & is fully depressed; Figure 5 shows the first and second connections according to the present invention. A schematic view of the arm member of the lever member and one of the rotary protrusions of the button, wherein FIG. 5A shows an initial normal state, FIG. 5B shows a lowered state, and FIG. 5 shows a lowest state. State; ^ Figure 6 is a diagram showing the relationship between the thrust acting on the key body and a key; and Figure 7 is a side view of a key and a compound key connected to it according to the present invention. Explanation of symbols 1 Rib; 1 3 ~ Link group supports cutting c 2 0 s ~ Stopper; 2 2 ~ Brother one link member; 23s ~ Contact protrusion;

10 ~ key body; 1 2 ~ link group guide hole; 2 0 ~ link group assembly; 2b first link member; 23 ~ leaf spring;

200425193 Brief description of the drawings: 24 ~ arm parts; 2 6 ~ rotating protrusions; 2 7 ~ key body positioning protrusions, 2 9 ~ hinge protrusions; 40 ~ brackets; 50 ~ link assembly 5 2 ~ second link member; PS ~ point; PS2 ~ point; component of F2 ~ F1; < 9 1 ~ angle; 2 5 ~ connecting recess; 26T ~ link group rotation axis; 2 8 ~ support Spherical protrusion; 30 ~ FPC (flexible printed circuit) 4 1 ~ Qin key fishing; 5 1 ~ first link member; 60 ~ link bar; PS point; F1 ~ force; F3 ~ reaction force; 0 2 ~ angle.

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Claims (1)

200425193 The present basket includes a link assembly including a first link member connected to an arm member at an outer end thereof, a second member having an arm member connected to an outer end thereof, and a 彳And the 垓 member has a tangible object. The U-shaped shells connected to the first and second link members will cause the pressure of the key body to drop, and it will be able to identify between =, and by releasing the key body. Pressure with the key body, and one of: and one of the second link member includes a hinge recess provided on its first connecting recess and a hinge protrusion provided on its side surface, = one of two The second link member of the second link member includes a second connecting protrusion and a hinge protrusion provided on the side surface of the second connecting protrusion. Constitutes a link group rotation axis. Λ ,,,, ° recessed a bracket, including a plurality of hinge hooks engaged with the first and second silicon protrusions; and a dry member hinge FPC (flexible printing Circuit), placed on the bracket, to recognize a key-in action by contacting the link assembly,. When the key body is pressed down, the first and second arm pieces will rotate downward around the rotation axis of the link group, and the same: ^ group rotation axis will increase, and the elastic object will gradually Dipingyuan = —Two curved into a bow shape protruding upwards to provide the messenger = two = feel and provide a restoring force for the link assembly. A feeling 2. The key as described in item 1 of the scope of patent application, wherein the key body is provided with a plurality of ribs at the lower surface thereof, each of which includes a ^ elongate shape 200425193 VI. Scope of patent application Link guide hole and a support cutout, and each of these first and second link members is provided with a key body positioning projection and a support spherical projection at the outer end of each of them The key body positioning projections slide along the link guide hole when the key body is lowered, and the support spherical protrusions are supported by the holding body from the time when the key body is positioned to its highest level position. The key body. 3. The key according to item 1 of the scope of patent application, wherein the elastic member is provided with a contact protrusion at a lower surface thereof to reliably push a contact portion of the FPC. 4. The key described in item 1 of the scope of patent application, further comprising a link bar provided below the key body to support the key body and uniformly distribute the thrust force applied to the key body, wherein the connector A rotation axis of one of the rods is positioned at an angle of 90 ° relative to a rotation axis of the link assembly, so that the link does not interfere with the link assembly. 5149-5635-PF (Nl); Ahddub.ptd Page 23