Floating head supporting mechanism

[Detailed Description of the Invention]

[Industrial Application] The present invention relates to the floating head used machine style used for a magnetic disk drive.

Art of [former] The floating head slider which is generally a dynamic pressure type gas bearing as a magnetic head in a magnetic disk drive is used. With the formation of mass high-density of a magnetic disk drive, a Rados rider's amount of floatage is becoming very small to floating, and the thing of submicron order is put in practical use now. And a floating head slider keeps and runs the amount of floatage stably to the run nowt of the magnetic-disk medium which rotates at high speed, or a minute projection, What which improves the Credibility of a magnetic disk drive (it supports with the gimbal spring which is a very flexible spring which does not restrain free movement of a floating head slider.) And generally, while loading load on a Rados rider to floating, the suspension spring with the role which supports a Rados rider to floating is joined to the gimbal spring. Drawing 6 is a perspective view for which the conventional floating head used machine style is shown, and, as for gin Balhane and 3, 1 is [ a suspension spring bending part and 5 ] spacers a suspension spring and 4 a floating head slider and 2. A floating head used machine style is connected to the actuator mechanism which is not illustrated, and a floating head used machine style is positioned at high speed on a magnetic-disk medium side. Although high pressure occurs by the hydrodynamics operation of air during device operation between floating head slider 1 and a magnetic-disk medium and Sodosla Ida l floats [ magnetic-disk medium side ] to floating as a result of That ', Suitable load is loaded on floating by the load load effect of tension bending of suspension spring bending part 4 prepared for Rados rider 1 by bending at the root part of suspension spring 3 in order to keep the amount of floatage the optimal. [Problem(s) to be Solved by the Invention] Pressure has occurred in the direction in which a head slider tends to separate from a magnetic-disk medium side under the influence of a high-speed air style for a Rados rider to floating used in the usual magnetic disk drive. Therefore, the distance of a Rados rider and a magnetic-disk medium will become large to floating only by merely holding the floating head slider by the magnetic head used machine style. Since this spacing loss is better as it is originally small, with the actual support device, it gave suitable load from a Rados rider's back to floating with the support spring in the form which balances with the buoyancy which occurs in the air lubricous side of a floating head slider, and has protected increase of the amount of floatage from the field of magnetic record. The structure which loads this suitable load is very simple, and it is a thing of the cantilever type which loads load by that stability that adds bending with the suitable angle for the root part of a suspension spring as mentioned above, and is called tension bending, to bend, and it has. The tension bending is formed by attaching a bend by plastic processing to a suspension spring. Primarily, according to the elastic effect of suspension spring material, since it is difficult, forming tension bending smoothly over the comparatively wide range then provides a plastic processing part usually strong against several places, and it constitutes the tension bending part. Therefore, also where a tension bending part is lengthened at the time of loading of floating beef fat, it cannot restore to a smooth state from the influence of partial plastic processing. On the other hand, a floating head slider is positioned at high speed by the arbitrary suitcases of a magnetic-disk medium according to an actuator mechanism. At this time, rapid acceleration takes for a floating head used machine style with access, therefore vibration occurs in a used machine style. Since the vibration has the dominant thing based on the characteristic vibration of a floating head support device, a big vibration may occur depending on the state of seeking, and, as a result, it may produce the oscillation of a servo system. When the influence of plastic processing remained in the tension bending part described especially previously, the rigidity of the tension bending part fell, and also there was a fault of puffing up generating of vibration. The object of the present invention removes the above conventional fault, and there is in providing the floating head used machine style of low oscillating high rigidity. [Means for Solving the Problem] It is characterized by the present invention comprising the following. A gimbal spring which supports a Rados rider to floating, A suspension spring which supports this gimbal spring in an end and which does not have a plastic bending part, A spacer joined to the other end of this suspension spring, A load load spring for being joined to this spacer and giving a suitable angle beforehand between a spacer and a suspension spring. [Function] The gimbal spring which supports a Rados rider to floating according to the floating head used machine style of the present invention, The suspension spring which has the bending part held as an elastic body without supporting the gimbal spring in one end, and giving plastic bending in the other end, the spacer for joining this suspension spring to an actuator mechanism, and a spacer -- oh -- providing the load load spring for caulking and giving a suitable angle between a spacer and a suspension spring, Also in the state where the suspension spring was lengthened at the time of loading of a head slider, Smoothly, expansion of the suspension spring bending part can be carried out to the shape of a Hub plane, as a result, it can improve the rigidity of the suspension spring bending part in a load state, it can be considered as the structure where vibration is not generated at the time of high-speed seeking of a head, and the fault of the conventional used machine style can be removed. [Example] By referring to drawings below explains the example of the present invention in detail. Drawing 1 and Drawing 2 are perspective views showing the floating head used machine style of the present invention, respectively, and the perspective view which looked at Drawing 1 from the back direction of an example where a floating head slider exists, and Drawing 2 are perspective views seen from the side in which a floating head slider exists. in Drawing 1 and Drawing 2 -- 1 -- as for a suspension spring and 4, a Sodos rider and 2 are [ a spacer and 6 ] load load springs a suspension spring bending part and 5 a gimbal spring and 3 in floating. Floating head slider 1 is joined to gimbal spring 2. Gimbal spring 2 is joined to the end of suspension spring 3. The other end of suspension spring 3 is joined to spacer 5 in the point of suspension spring bending part 4. Load load spring 6 which was able to add bending beforehand is fixed to spacer 5 so that the back of an example at which Sothos rider 1 exists to floating of suspension spring 3 may be touched. Drawing 3 is a perspective view for the state of the used machine style of this example at the time of removing a load load spring to be shown. Although bending was added to the spring bending part of the suspension spring by processing in the conventional used machine style, in this example, it is not processed into Spring bending part 4 at all, and the plane has been maintained. And it is the composition that bending produces load load spring 6 for suspension spring 3 by A 1 Adding at the used machine style of the state by which it was shown in Drawing 3. Therefore, in this example, suspension spring bending part 4 is in a To be sexual elastic bending state as a result of load load with a load load spring. Although a magnetic head used machine style is held at the time of the headload of a magnetic disk drive where [ this ] it bent and a state is developed, In that case as well as [ planate ] the state where there is no load load so to speak, in this example, since the spring bending part of a suspension spring is elastic deformation, it can restore smoothly. Drawing 4 and Drawing 5 are partial side views showing the shape of the suspension spring bending part at the time of Rado Road respectively to that of the floating head used machine style of this example and a conventional example. Four in a figure is a suspension spring bending part, and in the conventional example of Drawing 5, it turns out [ smooth in this example of Drawing 4 with the stage which remains also in the state of expansion under the influence of plastic side Kicking ] that it is planate so that it can grasp all over a figure. If the action at the time of high-speed seeking of a floating head used machine style is considered, power will be then transmitted from an actuator to a suspension spring via a spacer at a floating head used machine style first, and it will be further transmitted to floating via a gimbal spring at a Sodos rider. It is a big suspension spring which is the easiest to generate vibration at this time. If movement of the root part of a suspension spring and the tip part where a Sodos rider is attached to floating is considered now, Most direct [ movement / of a root part ], in order to transmit rigidity to a tip part highly, a suspension spring constitutes one plane and it can be said that it is ideal that it is subject to all the power by In-plane force of a suspension spring. Since a part of power from an actuator is transmitted as field external force to it in the state where the bend for plastic processing remains also in the state where expansion was carried out to the root part of the suspension spring like the conventional used machine style, In a very thin metal plate like a suspension spring, a rigid big fall will be brought about and the size of oscillating generating will be increased. At the floating head used machine style of this example, it is to it, Since any plastic change is not given to the bending part of the suspension spring, the smooth plane is constituted in the state of expansion, the power from the actuator at the time of seeking operation -- almost -- all -- it is possible to win popularity as power within a field, as a result, the rigidity of a suspension spring can be held highly, and the size of oscillating generating can be reduced. As mentioned above, it is although one example of the present invention was described, Shape, the quality of the material, etc. of a load load spring in the floating head used machine style of the present invention, First of all, since it is for the role to sag a suspension spring beforehand, it cannot be respectively overemphasized for every magnetic disk drive of the optimal, then that it is good and this example is not what restricts the range of the present invention in any way. [Effect of the Invention] The suspension spring which has the bending part held as an elastic body according to the present invention without supporting the gimbal spring which supports a Sodos rider, and its gimbal spring to floating in one end, and giving plastic field Kicking to it in the other end, The spacer for the other end of this suspension spring being joined and joining a suspension spring to an actuator mechanism, The floating head used machine style possessing the load load spring for being joined to this spacer and giving a suitable angle between a spacer and a suspension spring beforehand, Also in the state where the suspension spring was lengthened at the time of loading of a head slider, Smoothly, expansion of the suspension spring bending part is carried out to the shape of a Hub plane, as a result, it improves the rigidity of the suspension spring bending part in a load state, and has the effect of not generating vibration at the time of high-speed seeking of a head.

[Brief Description of the Drawings]

Drawing 1 is a perspective view showing one example of the floating head used machine style concerning the present invention, Drawings 3 are the perspective view which changed the angle as which the example of Drawing 1 regards Drawing 2, and a perspective view for explaining the state where the load load spring was removed in the example of Drawing 1, The partial side view in which Drawing 4 shows the state of the suspension spring bending part at the time of Nodoroad to that of the example of Drawing 1, the partial side view in which Drawing 5 shows the state of a suspension spring bending part at the time of the Hend load of a conventional example, and Drawing 6 are perspective views showing the floating head used machine style of a conventional example. 1 [ ..... Suspension spring bending part 5 / ..... Spacer 6 / ..... Load load spring representative / Patent attorney Yoshiyuki Iwasa ] ..... He is Sodos rider 2 to floating..... Gimbal spring 3 ..... Suspension spring 4