WO2006104223A1 - 直動転がり案内装置及びレンズ装置 - Google Patents
直動転がり案内装置及びレンズ装置 Download PDFInfo
- Publication number
- WO2006104223A1 WO2006104223A1 PCT/JP2006/306780 JP2006306780W WO2006104223A1 WO 2006104223 A1 WO2006104223 A1 WO 2006104223A1 JP 2006306780 W JP2006306780 W JP 2006306780W WO 2006104223 A1 WO2006104223 A1 WO 2006104223A1
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- WO
- WIPO (PCT)
- Prior art keywords
- guide
- guide groove
- pair
- linear motion
- preload
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/041—Ball or roller bearings having rollers crossed within a row
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/002—Elastic or yielding linear bearings or bearing supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/12—Arrangements for adjusting play
- F16C29/123—Arrangements for adjusting play using elastic means
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
Definitions
- the present invention relates to a linear motion rolling guide device and a lens device in which a movable member can be moved linearly via a rolling element.
- the adjustment of the preload applied to the rolling element is not necessary and how much the movable member is i4 t.
- a linear motion rolling guide device capable of always applying an appropriate preload and a lens device equipped with the linear motion rolling guide device X.
- Patent Document 1 describes a lens barrel for a stinole camera or video camera.
- the lens barrel described in Patent Document 1 is “supporting a lens and moving in the optical axis direction.
- a movable lens barrel having a plurality of first guide grooves parallel to the optical axis, and a fixed lens barrel having a plurality of second guide grooves parallel to the optical axis, respectively, opposed to the first guide grooves.
- a plurality of hard balls sandwiched between the first guide groove and the second guide groove.
- Patent Document 2 describes a rolling guide unit that guides an object to be moved in a motion mechanism such as a machine tool or an industrial robot, and in particular, a finite motion that prevents displacement of a cage that holds the rolling element.
- Rolling guidance unit Related to the project.
- the finite motion rolling guide unit described in Patent Document 2 is “a pair of track members arranged such that tracks are formed along the longitudinal direction and the tracks face each other, A rolling element that is arranged between the tracks and receives a load while rolling, and a holder that rotatably holds each of the rolling elements, the track portion of the track member, and one or more of each of the rolling elements "At least one of them consists of a magnet and is magnetized so as to be attracted to the other.”
- Patent Document 2
- the preload applied to the rolling element is managed and always has an appropriate size. It is necessary to ensure that the preload is applied to the rolling elements.
- a protruding means such as a set screw is provided, and the fixed member or the movable member is pressed to the rolling element side with the set screw to adjust the preload on the rolling element. It has been known.
- the above-mentioned finite motion rolling guide nut of Patent Document 2 shows an example provided with a preload adjusting mechanism using the set screw. If a set screw is used as the preload adjustment mechanism while tightening, the preload changes depending on how the setscrew is tightened, and the setscrew is loosened. If it occurs, the preload will decrease. Therefore, if you try to use a mechanism that does not loosen the set screw, the mechanism itself becomes complicated.
- the lens barrel of Patent Document 1 discloses a preload adjusting mechanism using a leaf spring, but the cross-sectional shape of the yoke is U-shaped, and the lens is supported on the opening side. As a result, the coil bobbin moves linearly. Therefore, the holding force for holding the yoke force bobbin is reduced to a value that is inversely proportional to the amount of protrusion of the coil bobbin.
- the preload changes depending on the position, and there is a problem that a uniform preload cannot be obtained.
- a protruding means such as a set screw is used as a preload adjusting mechanism. If the set screw is loosened, the preload will decrease if the set screw is loosened.
- the preload adjustment mechanism using a conventional leaf spring has a holding force that reduces the holding force of the coil bobbin so that it is inversely proportional to the amount of protrusion of the coil bobbin. Therefore, if the preload changes and a uniform preload cannot be obtained, 00 ⁇
- a linear motion rolling guide device includes a first guide groove that extends linearly, and a fitting member that is symmetrically arranged with the first guide groove as a center.
- a movable member having a second guide groove that extends in a straight line and is opposed to the first guide groove with a predetermined interval; a fixed member that holds the guide member;
- a rolling body unit ⁇ having a plurality of moving bodies movably interposed between the guide groove and the second inner groove, and the rolling unit unit via the guide member and the movable member.
- a preload member for applying preload, and the fixing member is provided with a fitting pin that can be fitted into the fitting hole of the guide member, and the fitting hole has a first inner groove extending therethrough.
- the main feature is that it consists of long holes elongated in the direction perpendicular to the direction.
- the linear motion rolling guide device of the present invention includes a fixing member having a plurality of first guide grooves that extend linearly and parallel to each other, and a first guide groove that extends linearly. Between the first guide groove and the second guide groove, and a movable member having a plurality of second guide grooves facing each other with a predetermined distance therebetween and parallel to each other.
- a plurality of rolling element units having a plurality of freely inserted rolling elements and a first guide groove of the plurality of first guide grooves are held by the fixing member and Preload is applied to the rolling element unit through at least one guide member having fitting holes arranged symmetrically with respect to the one guide groove, the guide guide inner member and the movable member.
- a pre-loading member and the fixing member is a fitting pin that can be fitted into the fitting hole of the guide member Provided, fitting hole, and this made of elongated hole longer in the direction perpendicular to the direction in which the first guide groove extends characterized Rereru.
- the lens device includes a fixed barrel having a plurality of first guide grooves that extend linearly and parallel to each other, and a linear guide that extends linearly and the first guide groove.
- a movable barrel having a plurality of second guide grooves opposed to each other with a predetermined interval therebetween and parallel to each other, and freely rollable between the first guide groove and the second guide groove
- a lens apparatus comprising a plurality of rolling element units having a plurality of interposed rolling elements, and having a first guide groove of one of the plurality of first guide grooves and fixed.
- At least one guide member which is held by the member and has fitting holes arranged symmetrically with the first guide groove as the center, and the rolling element unit via the guide member and the movable member A preload member for applying preload to the fixing member, and the fixing member is fitted in the fitting hole of the guide member A fitting pin that can be fitted is provided, and the fitting hole is a long hole that is elongated in a direction perpendicular to the direction in which the first guide groove extends.
- the linear motion rolling guide device of the present invention there is a rolling element unit having a plurality of rolling elements between a first guide groove provided in the guide member or the fixed member and a second guide groove provided in the movable member.
- a predetermined preload is applied from the preload member to the rolling element unit via the guide member and the movable member. Therefore, the relative linear motion of the movable member relative to the guide member or the fixed member can be smoothly performed, and the posture of the movable member can be changed even when the rolling element rolls and changes its position. Can be suppressed and stable operation can be performed.
- the fitting hole provided in the guide member is a long hole that is long in the direction perpendicular to the direction in which the guide groove extends, so that the inclining member tilts while absorbing errors in the accuracy of the components.
- the posture change with respect to can be suppressed.
- FIG. 1 is an exploded perspective view showing a first embodiment of the linear motion rolling guide device of the present invention.
- FIG. 2 is a perspective view showing the assembled state of the linear motion rolling guide device shown in FIG.
- FIG. 3 is a front view of the linear motion rolling guide shown in FIG.
- Figure 4 It is sectional drawing of the XX line part shown in FIG.
- FIG. 5 illustrates the operation of the linear motion rolling guide device of the present invention.
- Fig. 5 A is the center position
- Fig. 5 B is the left side position
- Fig. 5 C is the explanatory view of the right side position.
- FIG. 6 shows the operation of the guide device according to the linear motion of the present invention.
- FIG. 6 A is a perspective view when moved to the left
- FIG. 6 B is a perspective view when moved to the right. 0
- FIG. 7 is an exploded perspective view showing a second embodiment of the rolling guide device of the present invention.
- FIG. 8 is a perspective view in a disassembled state showing a third embodiment of the linear motion rolling guide device of the present invention.
- FIG. 9 is an exploded perspective view showing a fourth embodiment of the linear motion rolling guide device of the present invention.
- FIG. 10 is an exploded perspective view showing a fifth embodiment of the linear motion rolling guide of the present invention. '
- FIG. 11 is a perspective view of the assembled state of the linear motion rolling guide device shown in FIG.
- FIG. 12 is a front view of the linear motion rolling guide shown in Fig. 11.
- FIG. 13 is a cross-sectional view taken along line Y Y shown in FIG.
- FIG. 14 is a perspective view in an exploded state showing a first embodiment of a lens apparatus using an internal device for linear motion rolling according to the present invention.
- Fig. 15 shows another embodiment of the lens barrel support rod of the lens apparatus according to the present invention.
- Fig. 15A shows the arrangement of the inner and outer movable barrels at seven locations.
- Fig. 15B, Fig. 15C and Fig. 15D show the state in which the movable lens barrel is supported by the fixed lens barrel with rolling elements arranged in three places.
- FIG. 16 shows still another embodiment of the lens barrel support structure of the lens apparatus of the present invention.
- FIG. 6D is an explanatory view showing a state in which the movable lens barrel is supported by the fixed lens barrel with rolling element units arranged at four locations.
- FIG. 17 is a perspective view of a retracted state showing an embodiment of an imaging apparatus provided with a linear motion rolling guide device and a lens device according to the present invention.
- FIG. 18 is a perspective view showing a state in which the movable lens barrel of the lens apparatus has popped out from the state of FIG.
- Fig. 19 shows the state of the lens apparatus according to the present invention.
- Fig. 19A shows a retracted state
- Fig. 19B shows a state in which only the first movable lens barrel protrudes
- Fig. 190 shows the first state.
- the best shape for carrying out the invention is an explanatory diagram showing the state in which the second movable lens barrel protrudes in addition to the first movable lens barrel.
- a linear motion rolling guide device and a lens device that can apply a predetermined preload to the moving body unit, move the guide member smoothly and stably in a straight line, and prevent the guide member from tilting greatly, Realized by configuration.
- the linear motion rolling guide device 1 showing the first embodiment of the linear motion rolling guide device of the present invention includes a guide member having a first guide groove 7. 2, a movable member 3 having a second guide groove 8, a fixed member 4 for holding the guide member 2, and a first guide groove 7 and a second guide groove 8, which are freely rollable. And a pair of leaf springs 6 A and 6 B, each showing one embodiment of a preload member.
- the guide member 2 is a plate-like member having a rectangular shape in plan view and a T-shaped cross section in a direction perpendicular to the longitudinal direction.
- a first guide groove 7 extending from one end to the other end is provided in a substantially central portion on the plane side of the guide member 2 in the longitudinal direction. 1st plan
- the cross-sectional shape in the direction orthogonal to the longitudinal direction of the inner groove 7 is V-shaped, and a clearance groove is provided at the bottom to avoid contact with the rolling elements. It has been.
- the inclined surfaces on both sides of the first guide groove 7 are set to be approximately 45, respectively.
- a ridge portion 9 extending from one end to the other end is provided, and the concave portions on both sides of the ridge portion 9 are the flange portions 9 a and 9 b.
- the pair of flanges 9a and 9b are provided with positioning holes 10 and two fitting holes 11 and 11 respectively.
- the positioning hole 10 is set at a substantially central portion in the longitudinal direction, and the two fitting holes 11 and 11 are positioned in the positioning hole 1.
- the two fitting holes 11 are elongated holes that are elongated in the direction perpendicular to the direction in which the first guide groove 7 extends.
- the movable member 3 has substantially the same shape as the guide member 2, and is formed of a plate-like member having a T-shape.
- a second guide groove 8 extending from one end to the other end is provided in a substantially central portion on the bottom side of the guide member 2 in the longitudinal direction.
- the cross-sectional shape of the second guide groove 8 in the direction perpendicular to the longitudinal direction is an inverted V-shape, and a clearance groove is provided at the top to avoid contact with the rolling elements.
- the inclined surfaces on both sides of the second guide groove 8 are set to approximately 45 ° respectively.
- a projecting portion 12 extending continuously from one end to the other end in the longitudinal direction is provided at a substantially central portion of the surface of the movable member 3 opposite to the surface on which the second guide groove 8 is provided.
- the ribs 1 2 a 1 2 b are set on both sides of the ridges 1 and 2.
- the dimension in the width direction of the movable member 3 is substantially the same as the dimension in the width direction of the guide member 2, but the dimension in the longitudinal direction of the movable member 3 is longer than that of the guide member 2. Yes. This is because the drafting member 2 is fixed at a predetermined position, and the movable member 3 moves relative to the guide member 2 in the direction in which the guide groove extends.
- the first plan The inner groove 7 and the second guide groove 8 are set to have substantially the same size.
- the rolling element unit 5 is composed of a plurality of (four in this embodiment) cylindrical rollers 14 showing the first embodiment of the rolling elements, and a cage 1 for holding these cylindrical rollers 14 so as to be able to roll. It consists of five. Cylindrical rollers 14 are suitable as rolling elements, but other rolling elements such as spherical rollers and balls can also be used.
- the retainer 15 is provided with four retaining holes 16 for accommodating the cylindrical rollers 14 at the same number as the number of rolling elements.
- the four holding holes 16 of the retainer 15 are arranged in series on the same straight line, and four cylindrical rollers 14 are inserted into the holding holes 16 in every other direction of inclination. It is held so that it can roll freely at an angle of 45 °.
- the fixing member 4 is formed of a member having a rectangular frame shape having a concave portion 17 in which the guide member 2 can be accommodated.
- elongated holes 18 extending in the longitudinal direction are provided, and the bottom surface parts 1 are formed on both sides of the long hole 18 in the width direction.
- 9 A and 1 9 B are formed.
- Each bottom part 19 A, 19 B is provided with a positioning pin 2 1 projecting upward and two fitting pins 2 2, 2 2 projecting upward.
- the positioning pin 21 is set at a substantially central portion in the longitudinal direction in each of the bottom surface portions 19A and 19B. Further, the two fitting pins 2 2 and 2 2 are arranged at predetermined intervals on both sides in the longitudinal direction with the positioning pin 2 1 as the center. These positioning pins 2 1 and the fitting pins 2 2 and 2 2 correspond to the positioning holes 10 and the fitting holes 11 and 11 of the guide member 2, respectively. It is configured as follows.
- a pair of leaf springs 6 A and 6 B are individually attached to the bottom surface portions 19 A and 19 B which are symmetrical to the fixing member 4.
- Each leaf spring 6 A, 6 B is a long shape having approximately the same size as the bottom surface portions 19 A, 19 B. It is made of a spring material, and a support portion 6a is set at the center in the longitudinal direction. Furthermore, pressure contact portions 6 b and 6 b are set at both longitudinal ends of the leaf springs 6 A and 6 B. Between these pressure contact portions 6 b and 6 b and the support portion 6 a, Elastic portions 6c and 6c for applying spring force to the pressure contact portions 6b and 6b are set.
- a positioning hole 2 3 consisting of a round hole is provided in the substantially central portion of the support portion 6a of each leaf spring 6A, 6B.
- a positioning pin 2 1 provided on the fixing member 4 is fitted in each positioning hole 2 3.
- the diameter of the positioning hole 2 3 is formed to be larger than the shaft diameter of the positioning pin 2 1.
- the material of the guide member 2, the movable member 3, the fixed member 4 and the cage 15 for example, engineering plastic such as ABS resin (acrylonitrile, butadiene, styrene resin) is suitable. However, aluminum alloys and other metals can also be used. As the material of the plate springs 6 A and 6 B, metals such as spring steel are suitable.
- the linear motion rolling guide device 1 having such a configuration can be easily assembled, for example, as follows.
- fixing member 4 Attach a pair of leaf springs 6 A and 6 B individually to the left and right bottom parts 1 9 A and 19 B of the.
- the leaf springs 6 A and 6 B are fitted with the positioning pins 2 1 of the bottom surface portions 1 9 A and 19 B in the positioning holes 2 3 of the support portion 6 a and the fitting holes 1 on both sides.
- 1 and 1 1 are fitted with fitting pins 2 2 and 2 2 respectively.
- the guide member 2 is inserted into the concave portion 17 of the fixing member 4 from above the pair of leaf springs 6A, 6B.
- the positioning pin 21 is fitted into the positioning hole 10 and the fitting pins 2 2 and 2 2 on both sides are fitted into the fitting holes 1 1 and 11, respectively.
- the fitting hole 11 is a long hole and the longitudinal direction is set in a direction perpendicular to the first guide groove 7, the long hole is fitted to the positioning pin 21.
- the accuracy error of the pin 2 2 can be absorbed, and the guide member 2 can be easily and quickly attached.
- the rolling element 5 holding the four cylindrical rollers 14 is fitted into the first guide groove 7 of the guide member 2.
- the movable member 3 is overlaid on the inner member 2, and the second guide groove 8 is fitted into the rolling element unit 5.
- the assembly operation is completed and the linear motion rolling guide device 1 is obtained.
- the plate screws 6 A and 6 B and the guide member 2 are positioned by the positioning pin 2 1 and the fitting pin 2 2 of the fixing member 4. be able to .
- guide members
- FIG. 5A shows a state in which the rolling element unit 5 is located at the center of the movable stroke of the movable member 3.
- FIG. 5B and FIG. 6A show a state in which the movable member 3 has moved to the left by a distance SL toward the paper surface.
- FIG. 5C and FIG. 6B show a state in which the movable member 3 has moved by a distance SR in the opposite right direction toward the paper surface.
- the moving amount of the rolling element unit 5 is 1/2 of the moving amount of the movable member 3, respectively.
- the moving amount of the SL node 2 is shown in FIG.
- the movement amount is SR / 2.
- the rolling element unit 5 has a margin at the movable side end of the fixed member 4. Located in state. At this time, the rolling element ⁇ 5 tends to sink downward to the left in the figure by receiving the spring force of the pair of leaf springs 6 A and 6 B. Mating pin
- FIG. 7 shows a second embodiment of the linear motion rolling guide device according to the present invention.
- the linear motion rolling guide device 1 A according to the second embodiment is the same as that of the first embodiment.
- a pair of leaf springs 6 A, 6 B in two in the embodiment instead of a pair of leaf springs 6 A, 6 B in two in the embodiment,
- the second embodiment of the preload member is constituted by a single leaf spring 6 o
- This second embodiment differs from the first embodiment because only the leaf spring 6 is used. Now let's talk about leaf spring 6.
- Other configurations are denoted by the same reference numerals, and redundant description is omitted.
- the leaf spring 6 is composed of a pair of elastic support portions 6A and 6B and a connecting portion 6C for connecting the elastic support portions 6A and 6B, and the planar shape is formed in an H shape as a whole. ing.
- the pair of elastic support portions 6A and 6B are parallel to each other at a predetermined interval, and the connection portion 6C is connected between the center portions in the longitudinal direction, and is formed by one leaf spring. Yes.
- the connecting portion 6 C is formed in a U shape so as to avoid the protrusion 9 of the guide member 2.
- the pair of elastic support portions 6 A and 6 B is composed of a long elastic portion having a length substantially the same as the length of the bottom surface portions 19 A and 19 B, and is set at the central portion in the longitudinal direction. Both ends of the connecting portion 6C are connected to the fixed portion 6a.
- pressure contact portions 6 b and 6 b are set at both longitudinal ends of the elastic support portions 6 A and 6 B. Between these pressure contact portions 6 b and 6 b and the fixing portion 6 a, Elastic portions 6 c and 6 c for applying a spring force to the pressure contact portions 6 b and 6 b are set.
- a positioning hole 23 made of a round hole is provided in a substantially central portion of each support portion 6a.
- a positioning pin 2 1 provided on the fixing member 4 is fitted. The diameter of this positioning hole 2 3 is formed to be larger than the shaft diameter of the positioning pin 2 1, and by setting an appropriate size gap between it and the positioning pin 2 1 Make sure that the accuracy error with the mating pin 2 2 can be absorbed.
- relief holes 24 and 24, which are long holes, are provided, respectively.
- the escape hole 24 is formed as a long hole extending in the longitudinal direction in order to allow elastic deformation of the elastic portions 6c, 6c.
- Other configurations are the same as those in the first embodiment. A straight line having such a configuration. The same effect as that of the first embodiment can be obtained by the rolling guide device 1A.
- leaf springs 6A, 6B and 6 instead of the leaf springs 6A, 6B and 6, for example, four coil springs can be used as the preload member. Specifically, four identical coin springs are attached to the four fitting pins 2 2 and 2 2 of the fixing member 4. As a result, the U-shaped leaf spring 6A,
- leaf springs it is also possible to use acrylic rubber, silicone rubber, urethane rubber, polystyrene foam, and other various rubber-like elastic bodies formed into a plate shape. Instead of the fitting pin 22, a convex part for attaching the coil spring may be provided separately. In addition, four leaf springs can be used instead of the four coin springs.
- FIG. 8 shows a third embodiment of the linear motion rolling guide device of the present invention.
- the linear motion rolling guide device 31 according to the third embodiment includes a pair of permanent magnets 3 3, 3 instead of the pair of leaf springs 6 A, 6 B in the first embodiment. 2 sets of plate-shaped permanent magnets 3 2
- a and 3 2 B constitute the third embodiment of the preload member. If the third embodiment is different from the first embodiment, only two pairs of plate-like permanent magnets 3 2 A and 3 2 B can be used. , 3 2 B will be described, and the other components will be assigned the same reference numerals and redundant description will be omitted.
- the linear motion rolling guide device 31 includes a plan member 2 having a first guide groove 7, a movable member 3 having a second guide groove 8, a fixed member 4 holding the guide member 2, A rolling element unit 5 movably interposed between the first guide groove 7 and the second guide groove 8 and two sets of plate-like permanent magnets 3 2 showing a second embodiment of the preloading member 3 2 A, 3 2 B and are configured.
- the plate-like permanent magnets 3 2 A and 3 2 B are respectively connected to the first magnet plate 3 3 and And a second magnet plate 3 4.
- the first magnet plate 3 3 and the second magnet plate 3 4 are the same. Therefore, in this embodiment, two sets of plate-like permanent magnets 3 are used by using four identical magnet plates. 2 A and 3 2 B are configured.
- Each magnet plate 3 3, 3 4 is composed of a long magnet having approximately the same size as the bottom surface portion 19 A, 19 B of the fixing member 4. It is set and the S pole is set on the entire other side.
- a positioning hole 3 5 made of a round hole is provided at a substantially central portion in the longitudinal direction of each of the magnetic plates 3 3 and 3 4.
- a positioning pin 2 1 provided on the fixing member 4 is fitted in each positioning hole 3 5.
- the diameter of the positioning hole 35 is formed larger than the positioning pin 21 and the positioning pin 21 in the same manner as the positioning hole 23 of the above embodiment.
- a gap of an appropriate size is set so that errors in positional accuracy with the mating pin 2 2 can be absorbed.
- fitting holes 3 6 and 3 6 each having a long hole are provided at both ends of each of the magnet plates 3 3 and 3 4.
- the fitting pins 2 2 and 2 2 provided on the fixed member 4 are fitted into the fitting holes 3 6 and 3 6, respectively.
- the fitting hole 36 is formed as a long hole elongated in a direction orthogonal to the direction in which the first guide groove 7 extends.
- the linear motion rolling guide device 31 having such a configuration can be easily assembled, for example, as follows.
- the second magnet plates 3 4 and 3 4 are attached to the left and right bottom portions 19 A and 19 B of the fixing member 4, respectively.
- the second magnet plates 3 4 and 3 4 have the same poles (for example, N poles) facing up, and the bottom positioning portions 1 9 A and 19 B are inserted into the center positioning holes 3 5.
- Fit the positioning pin 2 1 and the fitting pins 2 2 and 2 2 in the fitting holes 3 6 and 3 6 on both sides.
- the second magnet plates 3 4 and 3 4 are fixed to the bottom surface portions 19 A and 19 B by using a fixing means such as an adhesive. When the repulsive force of the magnet is used, the fixing means is used, and the positioning pin 2 1 may be simply fitted into the positioning hole 3 5.
- the drafting member 2 to which the pair of first magnet plates 3 3 and 3 3 is fixed in advance is superposed on the second magnet plate 3 4 and 3 4 of a pair.
- the pair of first magnet plates 3 3 and 3 3 are arranged with their N poles facing each other so as to repel each other in relation to the pair of second magnet plates 3 4 and 3 4.
- the left and right magnet plates 3 3, 3 3 and 3 4, 3 4 may be arranged with their polarities reversed as long as they produce a repulsive force in each.
- the pair of first magnet plates 3 3 and 3 3 is provided on the surface of the guide member 2 where the left and right flanges 9 a 9 b have the ridges 9 that are opposite to the first draft grooves 7.
- the ridges 9 are fixed on both sides of the ridge 9 by an adhesive or the like.
- the positioning holes 3 5 of the first magnet plate 3 3 are aligned with the positioning holes 10 of the flanges 9a and 9b, and the fitting holes 3 on both sides are aligned.
- the in-house member 2 in which the pair of first magnet plates 3 3 and 3 3 are integrated is connected to the concave portion 1 7 of the fixing member 4 from above the pair of first magnet plates 3 3 and 3 3. Insert inside. Then, the positioning pin 2 1 is fitted into the positioning holes 3 5 and 10, and the two fitting pins 2 2 and 2 2 are fitted into the fitting holes 3 6 and 11, respectively.
- the fitting hole 36 and the fitting hole 11 that are matched to each other are both long holes, and the longitudinal direction thereof is set in a direction perpendicular to the first guide groove 7.
- the long hole can absorb the error in the positioning accuracy of the fitting pin 2 2 with respect to the positioning pin 2 1.
- the work for mounting member 2 can be performed easily and quickly.
- the rolling element unit 5 holding the four cylindrical rollers 14 is fitted into the first guide groove 7 of the guide member 2 in the same manner as in the above embodiment.
- the movable member 3 is overlaid on the guide member 2, and the second guide groove 8 is fitted into the rolling element unit 5.
- the assembly work is completed, and the linear motion rolling guide device 31 is obtained.
- a magnetic member such as an electromagnet or an induction coil.
- the first magnet plate 3 3 and the second magnet plate 3 4 that are opposed to each other are arranged so as to repel each other.
- 6 B the repulsive force of a pair of permanent magnets can be used to give the rolling element unit 5 a preload with an appropriate strength. Therefore, similar to the above embodiment, the rolling unit 5 can be prevented from sinking, the preload applied to the rolling unit 5 can be prevented from changing greatly, and the movable member 3 can be prevented from slipping. Moose movement can be secured.
- FIG. 9 shows a fourth embodiment of the linear motion rolling guide device of the present invention.
- the linear motion rolling guide device 31 A according to the fourth embodiment includes two pairs of plate-like permanent magnets that form a pair with each other in the third embodiment.
- a pair of frame-like permanent magnets 3 3 A and 3 4 A paired with each other constitutes a fourth embodiment of the preload member.
- the fourth embodiment is different from the third embodiment in that only a pair of frame-like permanent magnets 3 3 A and 3 4 A is used, so here a pair of frame-like permanent magnets 3 3 A, 34 A will be explained, and the other components will be given the same reference numerals and duplicate explanations will be omitted.
- the pair of frame-shaped permanent magnets 3 3 A and 3 4 A It consists of two magnets formed in the shape of a frame with one shape and size.
- Each frame-like permanent magnet 33 A (and 34 A) is formed in a rectangular shape, and a rectangular opening 37 extending in the longitudinal direction is provided at the center thereof. Then, in the long side portion of each frame-shaped permanent magnet 3 3 A (and 34 A), like the plate-shaped permanent magnets 3 2 A and 3 2 B, one positioning hole 3 5 and two fittings are fitted. Holes 3 6 and 3 6 are provided at corresponding positions.
- the openings 3 7 of the frame-shaped permanent magnets 3 3 A and 3 4 A are sized to match the protrusions 9 of the guide member 2, and the protrusions 9 are formed in the openings 3.
- the first frame-shaped permanent magnet 3 3 A is fixed to the guide member 2 and the second frame-shaped permanent magnet.
- FIGS. 10 to 13 show a fifth embodiment of the linear motion rolling guide device of the present invention.
- 4 1 is a pair of second magnet plates 3 4 constituting the elements of the two sets of plate-like permanent magnets 3 2 A, 3 2 8 of the linear motion guide device 3 1 in the third embodiment. , 3 4 is fixed to the movable member 3.
- the linear motion rolling guide device 4 1 according to the fifth embodiment is different from the linear motion rolling guide device 31 according to the third embodiment, the second magnet plates 4 4, 4 4 Is provided on the movable member 46, and the shape of the guide member 45 is partially changed correspondingly. Therefore, here, two sets of plate-like permanent magnets 3 2 A and 3 2 B (each consisting of a first magnet plate 3 3 and a second magnet plate 4 4), a guide member 45 and a movable member 4 Explains the configuration with 6 and the other configurations are the same. A duplicated description is omitted by attaching a symbol “—”.
- the linear motion rolling guide device 4 1 includes a guide member 4 5 having a first guide groove 7, a movable member 4 6 having a second guide groove 8, and a fixed member that holds the guide member 4 5.
- a member 4 a rolling element unit 5 interposed between the first guide groove 7 and the second guide groove 8 so as to roll freely, and two sets of plate-like permanent magnets 3 2 A, which form a preload member 3 2 B (first magnet plate 3 3 and second magnet plate 4 4).
- the shape of the guide member 4 5 is substantially the same as that of the guide member 2 in the above embodiment, but is different from that of the first magnet plate 3 on the side of the first guide groove 7 of the flanges 9 a and 9 b.
- 3 is provided with recesses for storing 3, and two first magnet plates 3 3 are attached to these recesses to form an integral structure.
- the two first magnet plates 3 3 are fixed using a fixing means such as an adhesive.
- the positioning hole 3 5 of the first magnet plate 3 3 is aligned with the positioning hole 10 of the flange 9 a (or 9 b), and the fitting holes 3 6 and 3 6 on both sides are the flange 9 a. (Or 9 b) to match with the fitting hole 1 1 ⁇
- the shape of the movable member 46 is substantially the same as that of the movable member 3 in the above embodiment, but is different from that of the second magnet on the second guide groove 8 side of the flanges 12a and 12b.
- Recesses for accommodating the plates 44 are provided, and two second magnet plates 44 are attached to the recesses so as to be integrated.
- the polarity of the first magnet plate 3 3 and the polarity of the second magnet plate 44 may be set so as to attract each other, so as to repel each other. May be set to The reason is
- the linear motion rolling guide device 4 1 having such a configuration is, for example, It can be assembled more easily as follows. First, the guide member 4 5 is attached to the fixed member 4. At this time, the pair of positioning pins 2 1 and 2 1 of the fixing member 4 are fitted into the pair of positioning holes 10 and 3 5 of the guide member 4 5, and the two pairs of fitting holes 1 1 and 3 6 Fit two pairs of mating pins 2 2 and 2 2 respectively. Next, the rolling element unit 5 holding the four cylindrical rollers 14 is fitted into the first guide groove 7 of the guide member 45. Thereafter, the movable member 4 6 is overlaid on the guide member 4 5, and the second guide groove 8 is fitted into the rolling element unit 5. As a result, the assembly work is completed, and the linear motion rolling guide device 4 1 is obtained.
- the rolling element unit 5 can be given a weekly preload using the repulsive force or tensile force of a pair of permanent magnets. Therefore, as in the above-described embodiment, the rolling element unit 5 can be prevented from sinking, and the preload acting on the rolling element unit 5 can be prevented from changing greatly, and the movable member 46 Smooth movement can be secured.
- FIG. 14 shows an embodiment in which the linear motion rolling guide device 1 according to the first embodiment is used for a lens barrel 50.
- the lens barrel 50 includes a fixed barrel 5 1 showing a specific example of the guide member, and the fixed barrel 5
- FIG. 1 shows a specific example of a movable member that is slidably held, and 3 rolling element units 5 interposed between the fixed barrel 5 1 and the movable barrel 5 2. It consists of A, 5 B, and 5 C.
- the fixed lens barrel 5 1 is made of a circular cylindrical body, and has one end in the axial direction. Is provided with a flange portion 51a that is extended outward in the radial direction. Three plane portions 5 4 a, 5 4 b, and 5 4 c that are flat within a predetermined range are provided at three locations on the outer peripheral surface of the fixed barrel 51. The three plane portions 5 4 a to 5 4 c are arranged at equiangular intervals, and the first plane portion 5 4 a is provided with an inner cylinder guide groove 55 as a first guide groove, Further, the second and third plane portions 5 4 b and 5 4 c are provided with openings 5 6 A and 5 6 B having a rectangular shape, respectively.
- the inner cylinder guide groove 5 5 extends in a straight line so as to be parallel to the axial direction of the fixed barrel 51, and its cross-sectional shape is V-shaped. There is a 5 ° inclined guide surface. One side of the rolling element unit 5A is fitted in the inner cylinder guide groove 5 5.
- positioning pins 2 1 and two fitting pins 2 2 and 2 2 Each is provided so as to be arranged in series at predetermined intervals in the axial direction.
- a pair of leaf springs 6 are provided at the edges of the openings 5 6 A and 5 6 B, respectively. A and 6B are installed.
- the guide member 2 On the pair of leaf springs 6A and 6B, the guide member 2 is overlaid with the first guide groove 7 facing outward.
- One surface side of the rolling element units 5 B and 5 C is fitted in the first guide groove 7 of each internal member 2.
- the three rolling element units 5A to 5C have the same shape and configuration as the rolling element unit 5 described in the above embodiment.
- the movable lens barrel 52 is made of a cylindrical body having a diameter larger than that of the fixed lens barrel 51.
- the fixed lens barrel 51 is inserted into the movable lens barrel 52 with a predetermined gap inside. ing.
- Movable barrel 5 At 3 locations on the inner peripheral surface of 2 Are provided with protrusions 58a, 58b and 58c that protrude radially inward. Part of the three protrusions 5 8 a to 5 8 c protrudes outward in the axial direction from one end of the movable lens barrel 52.
- the three protrusions 5 8 a to 5 8 c are arranged at equal intervals in the circumferential direction, and an outer cylinder guide is a second guide groove that is continuous in the axial direction at the substantially central portion of each inner surface. Grooves 59 are provided.
- the outer tube guide groove 59 extends in a straight line so as to be parallel to the axial direction of the movable lens barrel 52, and its cross-sectional shape is V-shaped. There is a 5 ° inclined guide surface.
- the other surface sides of the rolling element units 5 A, 5 B, and 5 C are fitted into the outer cylinder guide groove 59. That is, the three outer tube guide grooves 59 are formed by the inner tube guide groove 55 of the fixed barrel 51 and the first guide grooves 2 and 2 of the two guide members 2 and 2 mounted on the fixed barrel 51. 7 and 7, respectively. Between these inner and outer guide grooves 7, 5 9 and guide grooves 5 5, 5 9, the rolling element units 5 A, 5 B ⁇ 5 C can roll freely. Intervened.
- a drive means for moving the movable barrel 52 in the axial direction relative to the fixed barrel 51 is provided.
- This driving means can be constituted by a combination of a file and a permanent magnet, for example. For example, winding a filter around the outer peripheral surface of the fixed barrel 5 1, the movable barrel 5
- a permanent magnet is fixed to the inner peripheral surface of o. In this way, the movable barrel 5 2 can be moved back and forth by energizing the coil and generating electromagnetic force.
- the movable lens barrel 52 is supported and slidably supported by the rolling elements 5A, 5B, and 5C at three locations in the circumferential direction, and the guide member is provided at the two locations.
- 2 and leaf springs 6 A and 6 B which are preload members, are arranged respectively. ⁇ The springs of the leaf springs 6 A and 6 B The two guide members 2 are biased to the rolling element 5 B 5 C by force. This makes it possible to fix the lens barrel in one rolling element 5 A.
- a substantially uniform preload can be applied to the three rolling elements 5 A, 5 B, and 5 C. Therefore, the rolling unit 5A to 5C can be prevented from sinking at any position in the moving direction, and the rolling unit 5A to 5C can be avoided.
- the preload applied to C is prevented from changing in magnitude ⁇ , and the movable lens barrel 52 can be moved smoothly and accurately.
- FIGS. 15A, B, CD and Fig. 16 A, B, C, D show other examples of the shape and support method of the fixed and movable members of the linear motion rolling guide device of the present invention. is there .
- FIGS. 15A to 15D and FIGS. 16A to 16D the same portions are denoted by the same reference numerals.
- the movable barrel 6 2, 6 is placed inside and outside the fixed barrel 6 1.
- the inner movable barrel 6 2 and the outer movable barrel 6 3 are respectively connected to three sets of inner rolling element units 6 4 A, 6 4 B, 6 4 C and three sets of outer rolling element units 6 5 It is configured to support via A, 65 B and 65 C.
- 3 sets of internal rolling element ⁇ 6 4 A to 6 4 C and 3 sets of external rolling element units 6 5 A to 65 C are arranged at equal intervals (120 °) in the circumferential direction. .
- the rolling element units 6 4 A to 64 4 C and the outer rolling element units 65 A to 65 C are arranged at positions that are rotated by 60 °.
- the fixed barrel 6 1 has a continuous inner axis. Outer two guide grooves 6 6 and 6 7, two openings 6 8 and 6 8 for holding the two guide members 2 and 2, and two guide plates 6 9 and 6 9 for holding Two recesses 7 1 and 7 1 are provided. Proposal The inner groove 6 6 is provided on the inner peripheral surface of the fixed barrel 61, and the outer guide groove 6 7 is provided on the outer peripheral surface of the fixed barrel 61. The position is set. The outer guide groove 67 is used as a reference portion for determining a relative position between the fixed barrel 61 and the inner and outer movable barrels 62, 63. Two recesses 7 1 and 7 1 are set on the inner peripheral surface of the fixed barrel 61, and are rotated 60 ° to both sides. Two openings 6 8 and 6 8 are opened at the biased position.
- three axially continuous guide grooves 7 2, 7 3 and 7 4 are provided at three locations on the outer peripheral surface of the inner movable barrel 62. Yes.
- the three guide grooves 7 2 to 7 4 are arranged at equal intervals in the circumferential direction.
- the first guide groove 7 2 has a V-shaped cross section, but the other two are the second and second guide grooves.
- the cross-sectional shape of 3 guide grooves 7 3 and 7 4 is semicircular.
- the first guide groove 7 2 faces the inner guide groove 6 6 of the fixed barrel 61, and the first inner rolling element unit 6 4 A rolls between these guide grooves 6 6 and 7 2. It is movably interposed.
- the second and third guide grooves 7 3, 7 4 are opposed to the two recessed portions 7 1, 7 1 of the fixed barrel 61, and the guide plates 6 9 held in these recessed portions 7 1 and The second and third inner rolling element units 6 4 B and 6 4 C are interposed between them in a freely rotatable manner.
- the rolling elements of the second and third inner rolling element units 6 4 B and 6 4 C are spheres in this embodiment.
- the rolling elements can be cylindrical rollers, and all the rolling elements can be spherical.
- the example of using a sphere as a rolling element was shown only in the embodiment of Fig. 15A. In all the examples of B to Fig. 15 D and Fig. 16 A to Fig. 16 D, it is possible to use spheres or other shapes as rolling elements, of course, any It can also be used in combination with rolling elements of shape.
- projections 63a, 63b, 63c projecting radially inward are provided at three locations on the inner peripheral surface of the outer movable barrel 63. It has been.
- Three guide grooves 75, 7 6, and 7 7 that are continuous in the axial direction are provided on the inner surfaces of the three protrusions 6 3 a to 6 3 c.
- the three guide grooves 75 to 77 are arranged at equal intervals in the circumferential direction, and their cross-sectional shapes are V-shaped.
- the first guide groove 7 5 is opposed to the outer guide groove 6 7 of the fixed barrel 61, and the first outer rolling unit 6 5 A is interposed between these guide grooves 6 7 and 7 5. Is slidably interposed.
- the second and third guide grooves 7 6 and 7 7 are opposed to the two openings 6 8 and 6 8 of the fixed barrel 6 1, and the guide member 2 held in these openings 6 8 and Between these, the second and third outer rolling unit 6 5 B 6 5 C are interposed so as to be freely rollable. Further, a pair of leaf springs 6 A and 6 B, which are preload members, are provided between the two guide members 2 and 2 and the support portion which is the edge of the opening 6 8 of the fixed barrel 61 that supports the guide members 2 and 2. Are intervened.
- the six rolling element units 6 4 A to 6 4 C and 6 A preload of a predetermined size that is substantially uniform is applied to 5 A to 65 C.
- the fixed barrel 8 1 and the movable barrel 8 2 are so-called oval type (two circular parts are two sides parallel to each other).
- a movable lens barrel 8 2 is disposed outside the cylinder 8 1 with a predetermined gap, and is supported by three rolling element units 8 3 A, 8 3 B, and 8 3 C.
- the fixed lens barrel 8 1 and the movable lens barrel 8 2 are arranged with their respective flat portions up and down in the figure, and are used as a reference for positioning between the lens barrels 8 1 and 8 2.
- 1 rolling element unit 8 3 A is set at the center of lower flat portions 8 1 a and 8 2 a.
- a guide groove 84 having a V-shaped cross section and a continuous cross section in the axial direction is provided on the outer surface of the lower flat surface portion 8 1 a of the fixed barrel 8 1.
- a guide groove 85 having a V-shaped cross-section and an axially continuous cross-sectional shape is formed on the inner surface of the lower flat surface portion 8 2a of the movable barrel 8 2.
- a first rolling element unit 8 3 A is interposed between these guide grooves 8 4 and 85 so as to be freely rollable.
- the second rolling element unit 8 3 B is disposed on the upper surface of one of the arcuate surfaces of the fixed lens barrel 81 and the movable lens barrel 82
- the third rolling element unit 8 3 C is
- the tube 81 and the movable lens barrel 82 are disposed on the other arcuate surface. Therefore, openings 8 6 and 8 6 in which the guide member 2 is accommodated are provided on the upper portions of both the arc surfaces 8 lb and 8 1 c of the fixed barrel 8 1, respectively.
- projecting portions 8 7 projecting inward in the radial direction are provided on the upper surfaces of both arc surfaces 8 2 b and 8 2 c of the movable lens barrel 82, respectively. Yes.
- a guide groove 88 having a V-shaped cross section and a continuous cross section in the axial direction is provided at a substantially central portion of the inner surface of each protrusion.
- the second roller A moving unit 8 3 B and a third rolling unit 8 3 C are interposed so as to freely roll.
- two sets of leaf springs 6 A and 6 B which are preload members, are interposed between the two guide members 2 and 2 and the fixed barrel 8 1.
- the three rolling element units 8 3 A, 8 are applied by the spring force of the leaf springs 6 A 6 B acting from two directions, as in the HU embodiment.
- a substantially uniform preload can be applied to 3 B 8 3 C. Therefore, it is possible to prevent the rolling element unit from sinking, regardless of the position of the rolling element unit 8 3 A to 8 3 C in the movement direction.
- the preload applied to the head can be prevented from changing greatly, and the movable lens barrel 82 can be moved smoothly and accurately.
- the fixed lens barrel 8 1 and the movable lens barrel 8 2 shown in FIG. 15B are changed to a rectangular fixed lens barrel 9 1 and a movable lens barrel 9 2, and three rolling elements are provided.
- Units 9 3 A 9 3 B and 9 3 C are arranged between both barrels 9 1 and 9 2.
- the first rolling element unit 9 3 A is interposed between the guide grooves 94 and 95 so as to be freely rollable.
- the second rolling element unit 9 3 B is arranged at the upper corner of one of the fixed lens barrel 9 1 and the movable lens barrel 92, and the third rolling element unit 9 3 C is fixed to the fixed lens barrel 9 1 And the other upper corner of the movable barrel 92. Therefore, openings 96 and 96 for accommodating the guide member 2 are provided at the upper corners of both of the fixed barrels 9 1, respectively. Corresponding to these openings 9 6 and 9 6, thick portions 9 7 having appropriate thicknesses are provided inside the upper corners of both of the movable lens barrel 92. A guide groove 98 having a V-shaped cross-sectional shape and a continuous cross-sectional shape in the axial direction is provided at a substantially central portion of the inner surface of each thick-walled portion 97.
- the second rolling element A unit 9 3 B and a third rolling element unit 9 3 C are interposed so as to be freely rollable. Further, two sets of leaf springs 6 A and 6 B as preload members are interposed between the two guide members 2 and 2 and the fixed barrel 9 1. By urging the two guide members 2 and 2 outwardly with these leaf springs 6 A and 6 B, the first to third rolling element units 9 3 A to 9 3 In addition, a preload having a predetermined size that is substantially uniform is applied.
- the three rolling element units 9 3 A to 9 3 C are arranged symmetrically with respect to the first rolling element unit 9 3 A, only one central point is provided.
- FIG. 15 D is the three rolling element units shown in Fig. 15 C.
- the arrangement of 9 3 A, 9 3 B, and 9 3 C is changed, and the shapes of the fixed barrel 9 1 and the movable barrel 9 2 are the same.
- a guide groove 1 0 4 having a V-shaped cross-section at the center of the outer surface of one lower corner 1 0 1 a of the fixed lens barrel 1 0 1 and continuing in the axial direction is formed.
- a guide groove 10 5 whose cross-sectional shape corresponding to this is V-shaped and whose cross-sectional shape is continuous in the axial direction is provided at the substantially central portion of the inner surface of one lower corner 1 0 2 a of the movable lens barrel 1 0 2 Provided.
- a first rolling element unit 10 3 A is interposed between the guide grooves 10 4 and 10 5 so as to be freely rollable.
- the second rolling element unit 10 3 B is disposed on the upper surface of the fixed lens barrel 1001 and the movable lens barrel 102, and the third rolling element unit 10 3 C is a fixed lens barrel. It is arranged on the side surface opposite to the guide grooves 1 0 4 and 1 0 5 of 1 0 1 and the movable lens barrel 1 0 2. Therefore, in the substantially central part of the upper surface part 10 0 1 b of the fixed barrel 10 0 1 and the substantially central part of the side face part 1 0 1 c, there are openings 1 0 6 and 1 0 6 in which the guide member 2 is accommodated. Recesses 1 0 7 and 1 0 7 are provided, respectively.
- a second rolling element unit 10 3 B and a third rolling element unit 10 3 C are interposed so as to be freely rotatable. Further, two sets of leaf springs 6 A and 6 B as preload members are interposed between the two guide members 2 and 2 and the fixed barrel 10 1. By urging the two guide members 2 and 2 outward with these leaf springs 6 A and 6 B, the first to third rolling element units 10 3 A to 10 0 3 C A preload having a predetermined size is applied.
- the three rolling element units 10 3 A to 10 3 C are arranged symmetrically in the diagonal direction with the first rolling element unit 10 3 A as the center. Even if the leaf spring is not used in only one place, a preload of approximately the same size should be applied to the three rolling element units 10 3 A to 13 C. Can do.
- the fixed lens barrel 1 1 1 and the movable lens barrel 1 1 2 are formed in a square shape, and four rolling element units 1 1 3 A and 1 1 3 are formed at the four corners. B, 1 1 3 C, 1 1 3 D are arranged.
- Fig. 16A the fixed lens barrel 1 1 1 and the movable lens barrel 1 1 2 are formed in a square shape, and four rolling element units 1 1 3 A and 1 1 3 are formed at the four corners. B, 1 1 3 C, 1 1 3 D are arranged.
- a guide groove 1 1 4 having a V-shaped cross section at the center of the outer surface of one lower corner 1 1 1 1 a of the fixed barrel 1 1 1 and an axially continuous cross section is formed.
- the inner groove 1 1 5 is formed in the dfch in which the cross-sectional shape continues in the axial direction.
- the inner surface of the lower right corner 1 1 2 a of the movable lens barrel 1 1 2 a Located in the center.
- a first rolling element unit 1 1 3 A is interposed between the guide grooves 1 1 4 and 1 1 5 so as to be freely movable.
- 2nd rolling element unit 1 1 3 B is fixed barrel 1 1 1 and movable barrel
- Two rolling element units 1 1 3 B, a third rolling element unit 1 1 3 C, and a fourth rolling element unit 1 1 3 D are movably interposed. Further, three sets of leaf springs 6 A and 6 B, which are preload members, are interposed between the three guide members 2 and the fixed barrel 11 1 1, respectively. By urging the three guide members 2 and 2 outward with these leaf springs 6 A and 6 B, the first to fourth rolling element units are provided.
- 1 1 3 A to 1 1 3 D is given a preload of a predetermined size that is substantially uniform.
- the four rolling element units 1 1 3 A to 1 1 3 D are arranged symmetrically in the diagonal direction with the first rolling element unit 1 1 3 A as the center. Do not use leaf springs at only one central location
- FIG. 16B shows the four rolling element units shown in Fig. 16 A
- a to 1 1 3 D are arranged, but in this embodiment, four rolling element units 1 2 3 are arranged at substantially the central part of the four flat portions of the fixed barrel 1 2 1 and the movable barrel 1 2 2.
- a ⁇ l 2 3 D are arranged.
- the guide tube 1 has a V-shaped cross section at the center of the outer surface of 1 2 la of the fixed barrel 1 2 1 and the cross section continues in the axial direction 1 2 4 is provided, and the corresponding cross-sectional shape is V-shaped and the cross-sectional shape of the guide groove 1 2 5 is continuous in the axial direction.
- Fixed lens barrel 1 2 1 bottom surface 1 2 1 Approx. Each part is provided with an opening 1 2 6 in which the guide member 2 is accommodated and a recessed part 1 2 7. Corresponding to these openings 1 2 6 etc.
- the cross section of the movable lens barrel 1 2 2 has a V-shaped cross section in the approximate center of all three planes except for the lower surface 1 2 2 a.
- Guide grooves 1 2 and 8 each having a continuous shape in the axial direction are provided.
- the first to fourth rolling element units 1 2 to 4 are provided.
- a preload of a predetermined size that is substantially uniform is applied to 3 A to 1 2 3 D.
- ⁇ 1 2 3 D is symmetrically arranged in the left-right direction around the first rolling element 1 2 3 A, so the leaf spring is used only at one center. Even if the structure is not provided, it is possible to apply a preload having substantially the same magnitude to the four rolling element units 1 2 3 A to 1 2 3 D.
- the support structure that does not use the guide member 2 is applied to two places in the example shown in FIG. 16A. That is, the fixed lens barrel 1 3 1 and the movable lens barrel. 1 3 2 Lower right corner support structure is also applied to the upper right corner.
- the cross-sectional shape forms a V-shape at the center of the outer surface of the upper right corner 1 3 1 a of the fixed barrel 1 3 1 and the cross-sectional shape is axial.
- Consecutive guide grooves 1 3 4 are provided, and the corresponding cross-sectional shape is V-shaped and its cross-sectional shape Is provided in a substantially central portion on the inner surface of the upper right corner 1 3 2 a of the movable lens barrel 1 3 2.
- the second rolling element unit 1 3 3 B is interposed between the guide grooves 1 3 4 and 1 3 5 so as to be able to roll.
- the other configuration is the same as that of FIG.
- the support structure that does not use the guide member 2 is applied to two places in the example shown in FIG. 16B. That is, the support structure of the lower surface portion of the fixed lens barrel 141 and the movable lens barrel 142 is also applied to the right side surface portion.
- a guide groove whose cross-sectional shape forms a V-shape at the substantially central portion of the outer surface of the right-side surface portion 14 1 a of the fixed barrel 14 1 1 and whose cross-sectional shape is continuous in the axial direction. 1 4 4 is provided, and the corresponding cross-sectional shape is V-shaped and the cross-sectional shape is continuous in the axial direction.
- the 14 4 5 is formed in the center of the inner surface of the right side surface 1 4 2 a of the movable barrel 1 4 2 a.
- the second rolling element unit 1 4 3 B is interposed between the guide grooves 1 4 4 and 1 4 5 so as to freely roll.
- the other structure is the same as that of FIG. 16B.
- FIGS. 15C to 15D and 16A to 16D can be applied to the leaf spring 6 as in FIGS. 15A to 15B.
- a substantially uniform preload can be applied to three or four rolling element units.
- the rolling element unit can be prevented from sinking at any position in the moving direction, and the preload applied to the rolling element unit varies greatly.
- the movable lens barrel can be moved smoothly and accurately.
- the supporting portion having the preloading member may be provided at one or more locations, but it is preferable to provide the supporting portion at two or more locations in consideration of the preloading balance.
- FIGS. 17 to 19 are diagrams of an electronic still camera 150 which shows a specific example of an imaging device using the linear motion rolling device having the configuration as described above.
- Electronic still camera 1 shown in Fig. 7 and Fig. 1 8 The 50 has a force lens body 15 51 which is a specific example of the imaging device body, and the force lens body 15 1 has a retractable lens device 15 2 2 built in the force S.
- the camera body 15 1 is composed of a horizontally long casing having a space inside, and one side in the lateral direction that is the longitudinal direction of the force camera body 15 1 (in this embodiment, the force The lens device 1 5 2 is arranged on the right side. Although not shown in the internal space of the force meter body 1 5 1,
- a wiring board on which the child PP is mounted, a battery power storage device, and other various electronic parts, mechanical parts, and devices are housed.
- a chassis button 1 5 3 for shooting the subject. Furthermore, although not shown on the camera body 15 1, a power button, a mode selection dial, a liquid crystal display (LCD) for displaying various modes selected by the mode selection dial, etc. A flat display panel and an electronic viewfinder are provided.
- Figure 17 shows the retractable lens device 1 5 2 sinking into the force lens body 1
- FIG. 51 shows a state of being housed in FIG. 18 and FIG. 18 shows a state in which the lens device 15 2 is extended.
- Fig. 1 9 A Fig. 1 9 C shows an example of a specific configuration of such a retractable lens device 15 2.
- the lens device 1 5 2 is fixed to the camera body 1 5 1. Fixed barrel
- a second movable lens barrel 1 5 7, first to third lens groups 1 6 1 1 6 3, a CCD (solid-state image sensor) 1 6 4 showing a specific example of imaging means, and the like Has been.
- the fixed lens barrel 1 5 5 and the two movable lens barrels 1 5 6 1 5 7 are both composed of cylindrical tubes, and they are configured so that they can be nested.
- the back of the fixed lens barrel 1 5 5 is fixed to the camera body 1 5 1.
- the inner and outer movable barrels 1 5 6 and 1 5 7 with respect to the fixed barrel 15 5 5 are in the front-rear direction, for example, based on the configuration shown in FIGS. 19A to 19C. It is supported so that it can move back and forth linearly in the optical axis direction of the lens.
- permanent magnets are affixed to the inner and outer peripheral surfaces of the fixed lens barrel 15 5 5, while the inner and outer movable lens barrels 1 5 6, 1 5 7 correspond to those permanent magnets. Each has a coil wound around it. By using a combination of these coinores and permanent magnets, the inner and outer movable lens barrels 1 5 6 and 1 5 7 can be independently moved forward and backward using electromagnetic force.
- the first lens group 1 6 1 is a photographic lens facing the subject.
- the first movable lens barrel 1 5 6 is held.
- Second lens group 1
- FIG. 19A shows a retracted state in which the first movable lens barrel 1 5 6 of the lens device 15 2 is housed in the camera body 15 1.
- Figure 1
- Fig. 1 9 C show the state in which the first movable lens barrel 1 5 6 of the lens device 1 5 2 has popped out of the camera body 1 5 1. It can be divided into the wide state shown in 9B and the telephoto state (telephoto) shown in Fig. 19C.
- the linear motion type rolling guide device of the present invention By applying the linear motion type rolling guide device of the present invention to the electronic still camera 150 having such a configuration, the retracting operation of the lens device can be performed smoothly and reliably.
- the preload member it is possible to apply a uniform preload to the rolling elements, regardless of the movement position of the rolling elements.
- Example IJ an example using a permanent magnet as a specific example of the preload member has been described.
- an electromagnet instead of a permanent magnet.
- Such an electromagnet can be constituted by, for example, a plate-shaped or rod-shaped iron core and a coil wound around the iron core.
- the present invention is not limited to the above-described embodiment.
- an example in which the present invention is applied to an electronic still force meter (digital force meter) as an imaging device has been described.
- Other types of imaging devices For example, the present invention can be applied to, for example, a bidet talent camera, a personal computer with a camera PDA, etc. Change of force S is possible o
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP06730728A EP1865214A1 (en) | 2005-03-28 | 2006-03-24 | Linear motion rolling guide device and lens device |
US11/886,178 US20080279491A1 (en) | 2005-03-28 | 2006-03-24 | Linear Motion Rolling Guide Device and Lens Device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2005-092153 | 2005-03-28 | ||
JP2005092153A JP2006275096A (ja) | 2005-03-28 | 2005-03-28 | 直動転がり案内装置及びレンズ装置 |
Publications (1)
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WO2006104223A1 true WO2006104223A1 (ja) | 2006-10-05 |
Family
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Family Applications (1)
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PCT/JP2006/306780 WO2006104223A1 (ja) | 2005-03-28 | 2006-03-24 | 直動転がり案内装置及びレンズ装置 |
Country Status (7)
Country | Link |
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US (1) | US20080279491A1 (ja) |
EP (1) | EP1865214A1 (ja) |
JP (1) | JP2006275096A (ja) |
KR (1) | KR20070116009A (ja) |
CN (1) | CN101151474A (ja) |
TW (1) | TW200702894A (ja) |
WO (1) | WO2006104223A1 (ja) |
Cited By (1)
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JP2018099002A (ja) * | 2016-12-16 | 2018-06-21 | キヤノン株式会社 | 振動型アクチュエータ、これを有するレンズ鏡筒、撮像装置及びステージ装置 |
Families Citing this family (13)
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JP4645274B2 (ja) * | 2005-04-08 | 2011-03-09 | ソニー株式会社 | レンズ装置及び撮像装置 |
EP2213410B1 (de) * | 2009-02-03 | 2015-04-01 | Ab Skf | Linearführung mit Klemmvorrichtung |
DE102009053455B3 (de) * | 2009-11-17 | 2011-05-19 | Jenoptik Laser, Optik, Systeme Gmbh | Präzisionsobjektiv mit Linearführung |
JP5492655B2 (ja) * | 2010-05-18 | 2014-05-14 | 株式会社ジェイテクト | ステアリング装置 |
US20110290161A1 (en) * | 2010-05-27 | 2011-12-01 | Valley Precision, Inc. | Stage with magnetic loading |
EP2606246B1 (de) * | 2010-08-17 | 2015-04-08 | Johnson Controls GmbH | Trapezoides bauteil, linearführung und kopfstütze |
SE536274C2 (sv) * | 2011-10-03 | 2013-07-30 | Atlas Copco Ind Tech Ab | Skruvdriven pressenhet |
TWI491917B (zh) * | 2012-12-12 | 2015-07-11 | Sintai Optical Shenzhen Co Ltd | 變焦鏡頭及其彈片體 |
JP6308747B2 (ja) * | 2013-10-21 | 2018-04-11 | キヤノン株式会社 | モータ、レンズ鏡筒及びカメラシステム |
JP6708583B2 (ja) | 2017-05-02 | 2020-06-10 | キヤノン株式会社 | レンズ鏡筒および光学機器 |
TWI822688B (zh) * | 2018-07-06 | 2023-11-21 | 揚明光學股份有限公司 | 鏡筒 |
NL1042967B1 (en) * | 2018-08-28 | 2020-05-29 | Janssen Prec Engineering | Cryogenic Roller Bearing Guiding |
KR102647867B1 (ko) * | 2023-01-30 | 2024-03-14 | (주)하이필엠 | 여과 시스템 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60143924U (ja) * | 1984-03-05 | 1985-09-24 | 日本トムソン株式会社 | ロ−ラスプライン軸受 |
JPS6121418A (ja) * | 1984-07-05 | 1986-01-30 | Matsushita Electric Ind Co Ltd | 可動体の支持装置 |
JPS62165824U (ja) * | 1986-04-11 | 1987-10-21 | ||
JPH03216872A (ja) * | 1990-01-22 | 1991-09-24 | Hitachi Ltd | リニアガイド機構 |
JPH0829656A (ja) | 1994-07-14 | 1996-02-02 | Konica Corp | レンズ鏡胴 |
JPH0972334A (ja) | 1995-09-06 | 1997-03-18 | Nippon Thompson Co Ltd | 有限運動転がり案内ユニット |
-
2005
- 2005-03-28 JP JP2005092153A patent/JP2006275096A/ja not_active Abandoned
-
2006
- 2006-03-16 TW TW095108989A patent/TW200702894A/zh unknown
- 2006-03-24 US US11/886,178 patent/US20080279491A1/en not_active Abandoned
- 2006-03-24 EP EP06730728A patent/EP1865214A1/en not_active Withdrawn
- 2006-03-24 CN CNA2006800105026A patent/CN101151474A/zh active Pending
- 2006-03-24 WO PCT/JP2006/306780 patent/WO2006104223A1/ja active Application Filing
- 2006-03-24 KR KR1020077021918A patent/KR20070116009A/ko not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60143924U (ja) * | 1984-03-05 | 1985-09-24 | 日本トムソン株式会社 | ロ−ラスプライン軸受 |
JPS6121418A (ja) * | 1984-07-05 | 1986-01-30 | Matsushita Electric Ind Co Ltd | 可動体の支持装置 |
JPS62165824U (ja) * | 1986-04-11 | 1987-10-21 | ||
JPH03216872A (ja) * | 1990-01-22 | 1991-09-24 | Hitachi Ltd | リニアガイド機構 |
JPH0829656A (ja) | 1994-07-14 | 1996-02-02 | Konica Corp | レンズ鏡胴 |
JPH0972334A (ja) | 1995-09-06 | 1997-03-18 | Nippon Thompson Co Ltd | 有限運動転がり案内ユニット |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018099002A (ja) * | 2016-12-16 | 2018-06-21 | キヤノン株式会社 | 振動型アクチュエータ、これを有するレンズ鏡筒、撮像装置及びステージ装置 |
Also Published As
Publication number | Publication date |
---|---|
CN101151474A (zh) | 2008-03-26 |
KR20070116009A (ko) | 2007-12-06 |
US20080279491A1 (en) | 2008-11-13 |
JP2006275096A (ja) | 2006-10-12 |
TW200702894A (en) | 2007-01-16 |
EP1865214A1 (en) | 2007-12-12 |
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