WO2023058316A1 - 直動ユニット - Google Patents
直動ユニット Download PDFInfo
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- WO2023058316A1 WO2023058316A1 PCT/JP2022/030112 JP2022030112W WO2023058316A1 WO 2023058316 A1 WO2023058316 A1 WO 2023058316A1 JP 2022030112 W JP2022030112 W JP 2022030112W WO 2023058316 A1 WO2023058316 A1 WO 2023058316A1
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- Prior art keywords
- slider
- linear motion
- rolling
- longitudinal direction
- motion unit
- Prior art date
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- 238000005096 rolling process Methods 0.000 claims description 86
- 238000012423 maintenance Methods 0.000 description 9
- 230000013011 mating Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- F16C29/08—Arrangements for covering or protecting the ways
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
Definitions
- the present disclosure relates to a linear motion unit.
- This application claims priority based on Japanese application No. 2021-164028 filed on October 5, 2021, and incorporates all the descriptions described in the Japanese application.
- Patent Document 1 discloses a linear motion unit in which a ball screw, which is a linear motion mechanism, is housed in a housing.
- the housing is configured by combining a bottom plate on which ball screws are arranged, a pair of side plates, and an upper plate.
- JP-A-2000-230618 Japanese Patent Application Laid-Open No. 2007-69809 JP 2017-109580 A WO2010/067437
- the present disclosure is to provide a linear motion unit that can ensure dust resistance of the linear motion mechanism and facilitate maintenance.
- a linear motion unit includes a linear motion mechanism including a track member and a moving member linearly movable along the longitudinal direction of the track member; a housing including a fastener.
- a first rolling surface extending in the longitudinal direction is formed on the raceway member.
- the moving member is formed with a second rolling surface that faces the first rolling surface and forms a rolling element rolling path with the first rolling surface.
- the linear motion mechanism further includes a plurality of rolling elements that circulate in a rolling element circulation path including the rolling element rolling path as the moving member linearly moves along the longitudinal direction of the raceway member.
- the fastener includes a first longitudinally extending element, a second element longitudinally extending along the first element and engagable with the first element, a first slider attached to the first element and the second element; a second slider attached to the first element and the second element and spaced longitudinally relative to the first slider.
- the first slider and the second slider separate the first element and the second element from each other as they move in the direction opposite to the side where the other party is located, and move toward the side where the other party is located.
- the first element and the second element are meshed with each other.
- the first slider and the second slider are fixable with respect to the moving member.
- FIG. 1 is a perspective view showing the overall configuration of a linear motion unit according to Embodiment 1.
- FIG. FIG. 2 is a perspective view showing a state in which the cover is omitted in the linear motion unit according to Embodiment 1.
- FIG. FIG. 3 is an enlarged view of region III in FIG.
- FIG. 4 is an enlarged view of area IV in FIG.
- FIG. 5 is a cross-sectional view along line segment VV in FIG. 6 is a perspective view showing how the linear motion unit according to Embodiment 1 is attached to a mating member.
- FIG. 7 is a perspective view showing a state in which the linear motion unit according to Embodiment 1 is attached to a mating member and the cover is omitted.
- FIG. FIG. 8 is a perspective view showing the configuration of a linear motion unit according to Embodiment 2.
- FIG. 9 is a cross-sectional view along the line segment IX-IX in FIG. 8.
- FIG. 9 is a cross-sectional view
- a linear motion unit includes a linear motion mechanism including a track member and a moving member linearly movable along the longitudinal direction of the track member; a housing including a fastener.
- a first rolling surface extending in the longitudinal direction is formed on the raceway member.
- the moving member is formed with a second rolling surface that faces the first rolling surface and forms a rolling element rolling path with the first rolling surface.
- the linear motion mechanism further includes a plurality of rolling elements that circulate in a rolling element circulation path including the rolling element rolling path as the moving member linearly moves along the longitudinal direction of the raceway member.
- the fastener includes a first longitudinally extending element, a second element longitudinally extending along the first element and engagable with the first element, a first slider attached to the first element and the second element; a second slider attached to the first element and the second element and spaced longitudinally relative to the first slider.
- the first slider and the second slider separate the first element and the second element from each other as they move in the direction opposite to the side where the other party is located, and move toward the side where the other party is located.
- the first element and the second element are meshed with each other.
- the first slider and the second slider are fixable with respect to the moving member.
- the front slider of the first slider and the second slider separates the first element and the second element from each other.
- the rear slider of the first slider and the second slider mesh the first element and the second element with each other. Therefore, when the moving member moves linearly along the longitudinal direction of the track member, the portion of the fastener other than the portion between the first slider and the second slider is maintained in a closed state. The dust resistance of the linear motion mechanism can be ensured.
- the fastener can be opened by moving the first slider toward one end of the fastener and moving the second slider toward the other end of the fastener, thereby reducing maintenance of the linear motion mechanism. can be easily done.
- fastener means that a plurality of teeth (coupling teeth) are attached along the longitudinal direction on both sides in the width direction (perpendicular to the longitudinal direction) of a cut portion (opening) extending in the longitudinal direction. means what is given.
- the linear motion unit further includes a third slider mounted on the side opposite to the second slider when viewed from the first slider, and separating the first element and the second element from each other as the slider moves toward the first slider. may be provided. According to this configuration, even if the first slider and the second slider are not used, the fastener can be opened by the third slider during maintenance of the linear motion mechanism, attachment of the linear motion mechanism to the mating member, and the like.
- a fourth slider is attached on the side opposite to the first slider when viewed from the second slider, and separates the first element and the second element from each other as the slider moves toward the second slider.
- the fastener can be opened by the fourth slider during maintenance of the linear motion mechanism, attachment of the linear motion mechanism to the mating member, and the like.
- FIG. 1 is a perspective view showing the overall configuration of a linear motion unit 1.
- FIG. FIG. 2 is a perspective view showing a state in which the cover 22 is omitted in the linear motion unit 1.
- FIG. 3 is an enlarged view of region III in FIG.
- FIG. 4 is an enlarged view of area IV in FIG.
- FIG. 5 is a cross-sectional view along line segment VV in FIG.
- the linear motion unit 1 mainly includes a linear motion mechanism 10 ( FIG. 2 ) and a housing 20 ( FIG. 1 ) that houses the linear motion mechanism 10 .
- the linear motion mechanism 10 includes rails 11 (track members) and slide blocks 12 (moving members) attached to the rails 11 .
- the rail 11 extends linearly in the longitudinal direction D1.
- the rail 11 is formed with a through hole 11B that has a circular shape when viewed in the vertical direction D3 (the direction perpendicular to both the longitudinal direction D1 and the width direction D2) and penetrates the rail 11 in the vertical direction D3.
- a plurality of through holes 11B are formed at regular intervals in the longitudinal direction D1.
- the slide block 12 is linearly movable along the longitudinal direction D1 of the rail 11. As shown in FIG. 2, the slide block 12 includes a casing 13 and a pair of end caps (a first end cap 14 and a second end cap 15) arranged on both sides of the casing 13 in the longitudinal direction D1.
- a pair of first rolling surfaces 11A are formed on both sides of the rail 11 in the width direction D2.
- the first rolling surface 11A extends over the entire rail 11 in the longitudinal direction D1.
- Casing 13 includes a casing body 16 extending in width direction D2 and a pair of sleeves (first sleeve 17 and second sleeve 18) extending in vertical direction D3 from both sides of casing body 16 .
- the first sleeve portion 17 extends in the vertical direction D3 from the first end portion 16A of the casing body 16 toward the rail 11 side. As shown in FIG. 5, the first sleeve portion 17 has a second rolling surface facing the first rolling surface 11A and forming a first rolling element rolling path with the first rolling surface 11A. 17A is formed. The second rolling surface 17A is formed in a portion of the first sleeve portion 17 facing the rail 11 side.
- a plurality of rolling elements 60 (balls in the present embodiment) are arranged side by side in the longitudinal direction D1 on the first rolling element rolling path.
- the type of rolling elements is not limited to balls, and may be, for example, cylindrical rollers.
- the second sleeve portion 18 extends from the second end portion 16B of the casing body 16 toward the rail 11 in the vertical direction D3.
- the second sleeve portion 18 is formed with a second rolling surface 18A that faces the first rolling surface 11A and forms a second rolling element rolling path with the first rolling surface 11A.
- the second rolling surface 18A is formed in a portion of the second sleeve portion 18 facing the rail 11 side.
- a plurality of rolling elements 60 (balls in the present embodiment) are arranged side by side in the longitudinal direction D1 on the second rolling element rolling path.
- the first sleeve portion 17 is formed with a first return path 17B.
- the first return path 17B is a through hole that extends along the first rolling surface 11A and penetrates the first sleeve portion 17 in the longitudinal direction D1. More specifically, the first return path 17B is a circular through hole when viewed in the longitudinal direction D1. In this embodiment, the first return path 17B is formed at a position spaced apart from the first end portion 16A more than the second raceway surface 17A.
- the second sleeve portion 18 is formed with a second return path 18B.
- the second return path 18B is a through hole that extends along the first rolling surface 11A and penetrates the second sleeve portion 18 in the longitudinal direction D1.
- the second return path 18B is a circular through hole when viewed in the longitudinal direction D1.
- the second return path 18B is formed at a position further away from the second end 16B than the second raceway surface 18A.
- the first end cap 14 (Fig. 2) is internally formed with a first direction changing path (not shown) connecting the first rolling element rolling path and the first return path 17B (Fig. 5). Further, the first end cap 14 is formed with a second direction changing path (not shown) connecting the second rolling element rolling path and the second return path 18B (FIG. 5). Similarly, inside the second end cap 15 (FIG. 2), a first direction changing path connecting the first rolling element rolling path and the first return path 17B, a second rolling element rolling path and a second return path are provided inside the second end cap 15 (FIG. 2). A first direction changing path connecting the first rolling element rolling path and the first return path 17B, a second rolling element rolling path and a second return path are provided. A second turning path connecting with the path 18B is formed respectively.
- an annular first rolling element circulation path is formed by the first rolling element rolling path, the first return path 17B (FIG. 5), and the first direction changing path.
- an annular second rolling element circulation path is formed by the second rolling element rolling path, the second return path 18B (FIG. 5), and the second direction changing path.
- the slide block 12 includes a plurality of rolling elements 60 arranged in the first rolling element circulation path and the second rolling element circulation path. The plurality of rolling elements 60 circulate in the first rolling element circulation path and the second rolling element circulation path as the slide block 12 moves linearly along the longitudinal direction D1 of the rail 11 .
- the housing 20 in the present embodiment is a rectangular parallelepiped box extending in the longitudinal direction D1.
- Housing 20 includes base plate 21 , cover 22 , and fasteners 23 .
- the base plate 21 is a rectangular plate extending in the longitudinal direction D1.
- the linear motion mechanism 10 is arranged on the upper surface of the base plate 21 .
- the housing 20 further includes a first stay 51 , a second stay 52 and a plurality of third stays 53 .
- the first stay 51 and the second stay 52 are arranged on both ends of the upper surface of the base plate 21 in the longitudinal direction D1.
- the third stays 53 are arranged side by side in the longitudinal direction D1 on both ends of the upper surface of the base plate 21 in the width direction D2. That is, a first stay 51 , a second stay 52 and a plurality of third stays 53 are arranged on the outer periphery of the upper surface of the base plate 21 .
- the third stay 53 includes a rectangular third base portion 53A placed on the upper surface of the base plate 21 and a rectangular third wall portion 53B standing perpendicular to the third base portion 53A. including. A through hole for fixing the third base portion 53A to the base plate 21 is formed in the third base portion 53A.
- the third wall portion 53B is a portion for supporting the cover 22 (FIG. 1) from the inside.
- the first stay 51 includes a first base portion 51A placed on the upper surface of the base plate 21 and a rectangular first wall portion 51B standing perpendicular to the first base portion 51A. include.
- a plurality of through holes 51C are formed in the first base portion 51A.
- the through hole 51C is an elongated hole extending in the longitudinal direction D1.
- the first wall portion 51B is a portion for supporting the cover 22 (FIG. 1) from the inside, like the third wall portion 53B (FIG. 3). Since the second stay 52 (FIG. 2) has basically the same configuration as the first stay 51, detailed description thereof will be omitted.
- the cover 22 has a rectangular parallelepiped shape extending in the longitudinal direction D1 and is arranged on the base plate 21 .
- the cover 22 includes a pair of first side surfaces 26 extending in the longitudinal direction D1 and a pair of second side surfaces 27 connecting ends of the pair of first side surfaces 26 in the longitudinal direction D1. 1, only one of the first side 26 and the second side 27 is shown.
- the second side surface 27 has a smaller area than the first side surface 26 .
- the cover 22 is entirely open on the bottom side (base plate 21 side) and has an opening 22A for the fastener 23 on the top surface. As shown in FIG. 1, the opening 22A has a rectangular shape that is smaller than the upper surface of the cover 22 and extends in the longitudinal direction D1. The fastener 23 extends in the longitudinal direction D1 and is arranged to close (cover) the entire opening 22A.
- the fastener 23 includes a first element 24 and a second element 25 that can be engaged with the first element 24.
- the first element 24 extends in the longitudinal direction D1 over the entire opening 22A.
- the second element 25 extends in the longitudinal direction D ⁇ b>1 along the first element 24 and has approximately the same length as the first element 24 .
- the first element 24 includes a first tape portion attached along one edge in the width direction D2 of the opening 22A, and a plurality of first tooth portions attached side by side in the longitudinal direction of the first tape portion.
- the second element 25 includes a second tape portion attached along the other edge in the width direction D2 of the opening 22A, and a plurality of second tooth portions attached side by side in the longitudinal direction of the second tape portion. including.
- the first tape portion and the second tape portion may be omitted, and the first tooth portion and the second tooth portion may be directly attached to the edge of the opening 22A.
- the fastener 23 includes a first slider 28 and a second slider 29 located apart from the first slider 28 in the longitudinal direction D1.
- the first slider 28 and the second slider 29 are adjacent to each other in the longitudinal direction D1.
- a first slider 28 is attached to the first element 24 and the second element 25 .
- a second slider 29 is attached to the first element 24 and the second element 25 .
- the first element 24 and the second element 25 are separated from each other.
- the first slider 28 and the second slider 29 engage the first element 24 and the second element 25 that are separated from each other, and the first elements that are engaged with each other engage with each other.
- 24 and the second element 25 are spaced apart. More specifically, the first slider 28 and the second slider 29 separate the first element 24 and the second element 25 from each other as the slider 28 and the second slider 29 move in a direction opposite to the side on which the other party is located. The first element 24 and the second element 25 are engaged with each other as they move toward the position.
- the first slider 28 and the second slider 29 can be fixed to the slide block 12.
- the slide block 12 is arranged on the top surface of the casing 13 (the surface opposite to the rails 11 ) and further includes an intermediate plate 31 ( FIG. 5 ) having approximately the same width as the casing 13 .
- the intermediate plate 31 is fixed to the casing 13 by fixing members such as bolts.
- the second slider 29 is fixed to the intermediate plate 31.
- a recess that is recessed toward the casing 13 is formed on the upper surface of the intermediate plate 31 (the surface opposite to the casing 13) at a substantially central portion in the width direction D2. A lower portion of the second slider 29 is fitted into the recess.
- the second slider 29 is fixed to the slide block 12 (the intermediate plate 31 in this embodiment).
- the first slider 28 (FIG. 3) is also fixed to the slide block 12 (intermediate plate 31 in the present embodiment) like the second slider 29. Therefore, the first slider 28 and the second slider 29 move (slide) in the longitudinal direction D1 as the slide block 12 moves linearly on the rail 11 to open and close the fastener 23 .
- the linear motion unit 1 further includes a pressing member 30 that presses the first slider 28 and the second slider 29 .
- pressing member 30 in the present embodiment has a rectangular parallelepiped shape extending in longitudinal direction D1, it is not limited to this.
- a recess that is recessed away from the intermediate plate 31 is formed on the lower surface of the pressing member 30 (the surface on the intermediate plate 31 side).
- the upper portion of the second slider 29 is fitted into the recess.
- the upper portion of the first slider 28 (FIG. 3) is also fitted into the recess formed in the lower surface of the pressing member 30, similarly to the second slider 29.
- the pressing member 30 has a plurality of (two in the present embodiment) first through holes 32 and a plurality of (two in the present embodiment) second through holes 33, respectively. formed.
- the first through-holes 32 and the second through-holes 33 pass through the pressing member 30 in the vertical direction D3 and are arranged in a line in the longitudinal direction D1. More specifically, the first through hole 32 is sandwiched by the second through holes 33 from both sides in the longitudinal direction D1.
- the inner diameter of the first through-hole 32 is larger than the inner diameter of the second through-hole 33, but the present invention is not limited to this.
- the first through hole 32 and the second through hole 33 are formed between the first slider 28 and the second slider 29 in the longitudinal direction D1. Therefore, the first through-hole 32 and the second through-hole 33 are overlapped in the up-down direction D3 with the portion of the fastener 23 where the first element 24 and the second element 25 are separated from each other. For this reason, fixing members (not shown) such as bolts and screws are inserted into the first through holes 32 and the second through holes 33, passed through the gap between the first element 24 and the second element 25, and the intermediate plate It can be inserted into a hole (not shown) formed in 31 . Thereby, the pressing member 30 can be fixed to the slide block 12 (the intermediate plate 31 in this embodiment).
- the linear motion unit 1 further includes a third slider 40 and a fourth slider 41 .
- the third slider 40 is mounted on the side opposite to the second slider 29 (FIG. 3) when viewed from the first slider 28 (FIG. 3).
- the third slider 40 moves toward the first slider 28 (toward the pressing member 30). and the second element 25 are spaced apart from each other.
- part of the fastener 23 is opened by the third slider 40, as shown in FIG.
- the rail 11 can be attached to the mating member 70 by inserting the bolt B1 or the like into the through hole 11B of the rail 11 and the through hole (not shown) of the base plate 21, as shown in FIG.
- maintenance work of the linear motion unit 1 such as confirmation of the state of the track surfaces of the rails 11 and the slide blocks 12, can be performed while the fastener 23 is partially open.
- the fourth slider 41 (Fig. 1) is attached on the side opposite to the first slider 28 (Fig. 3) when viewed from the second slider 29 (Fig. 3).
- the fourth slider 41 moves the first element 24 and the second element 25 as it moves toward the second slider 29 in a state where the fastener 23 is closed between the second slider 29 and the fourth slider 41 . keep them apart from each other. As a result, it becomes possible to partially open the fastener 23, as in the case of using the third slider 40, so that the mounting work of the rail 11 and the maintenance work of the linear motion unit 1 can be performed.
- the front slider of the first slider 28 and the second slider 29 moves the slide block 12 forward.
- the rear slider of the first slider 28 and the second slider 29 engages the first element 24 and the second element 25 with each other. Therefore, the fastener 23 is kept closed when the slide block 12 moves linearly along the longitudinal direction D1 of the rail 11, so that the linear motion mechanism 10 can be dust-proof.
- the fastener 23 can be opened directly. Maintenance of the driving mechanism 10 can be easily performed.
- FIG. A linear motion unit 2 according to the second embodiment has basically the same configuration as the linear motion unit 1 according to the first embodiment, and has the same effect, but the linear motion mechanism is a ball screw. They are different in some respects. Differences from the first embodiment will be mainly described below.
- FIG. 8 is a perspective view showing the configuration of the linear motion unit 2.
- FIG. 9 is a cross-sectional view along the line segment IX-IX in FIG. 8.
- the linear motion mechanism in Embodiment 2 mainly includes a screw shaft 81 (track member) and a nut 82 (moving member).
- the screw shaft 81 has a columnar shape, and a spiral first screw groove 81A (first rolling surface) is formed on the outer peripheral surface. Both ends of the screw shaft 81 are supported by bearings (not shown).
- the nut 82 is linearly movable along the longitudinal direction of the screw shaft 81 as the screw shaft 81 rotates about its axis. As shown in FIG. 8, the nut 82 includes a nut body 83 and a pair of end caps (a first end cap 84 and a second end cap 85) arranged on both sides of the nut body 83 in the longitudinal direction.
- the nut body 83 has a cylindrical shape, and a second thread groove 83A (second rolling surface) is formed on the inner peripheral surface.
- a rolling element rolling path is formed between the first thread groove 81A and the second thread groove 83A, and a plurality of rolling elements 60 (balls) are arranged.
- the housing in the second embodiment includes a cover 91 formed by rolling a square sheet and fasteners 92. As shown in FIG. A cut portion (opening) is formed between one end and the other end of the cover 91, and the fastener 92 is arranged to extend in the longitudinal direction so as to block (cover) the opening. ing.
- Fastener 92 includes a first element 93 and a second element 94 that mesh with each other.
- the lower surfaces of the first slider 28 and the second slider 29 are fixed to the outer peripheral surface of the nut body 83 .
- the upper surfaces of the first slider 28 and the second slider 29 are fixed to the lower surface of the pressing member 90 . Therefore, the first slider 28 and the second slider 29 are fixed to the nut 82 . Therefore, by linearly moving the nut 82 along the screw shaft 81 , it becomes possible to move the first slider 28 and the second slider 29 along the longitudinal direction of the screw shaft 81 .
- one or both of the third slider 40 and the fourth slider 41 may be omitted. Further, one or both of the third slider and the fourth slider may be employed in the linear motion unit 2 according to the second embodiment.
- the first stay 51, the second stay 52 and the third stay 53 may be omitted.
- the intermediate plate 31 may be omitted.
- the first slider 28 and the second slider 29 are attached directly to the casing 13 .
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Abstract
Description
本開示に従った直動ユニットは、軌道部材と、軌道部材の長手方向に沿って直線的に移動可能な移動部材と、を含む直動機構と、直動機構を収容し、長手方向に延びるファスナーを含む筐体と、を備える。軌道部材には、長手方向に延びる第1転走面が形成されている。移動部材には、第1転走面に対向するとともに第1転走面との間に転動体転走路を形成する第2転走面が形成されている。直動機構は、移動部材が軌道部材の長手方向に沿って直線的に移動するのに伴って、転動体転走路を含む転動体循環路を循環する複数の転動体をさらに含む。ファスナーは、長手方向に延びる第1エレメントと、第1エレメントに沿って長手方向に延び、第1エレメントと噛み合い可能な第2エレメントと、第1エレメントおよび第2エレメントに取り付けられる第1スライダと、第1エレメントおよび第2エレメントに取り付けられ、第1スライダに対して長手方向において離れて位置する第2スライダと、を含む。第1スライダおよび第2スライダは、相手が位置する側と反対の向きに移動するのに伴って第1エレメントおよび第2エレメントを互いに離間させるとともに、相手が位置する側の向きに移動するのに伴って第1エレメントおよび第2エレメントを互いに噛み合わせる。第1スライダおよび第2スライダは、移動部材に対して固定可能である。
次に、本開示の直動ユニットの具体的な実施の形態を、図面を参照しつつ説明する。以下の図面において、同一または相当する部分には同一の参照符号を付し、その説明は繰り返さない。
まず、実施の形態1に係る直動ユニット1の構成を、図1~図5に基づいて説明する。図1は、直動ユニット1の構成を全体的に示す斜視図である。図2は、直動ユニット1においてカバー22が省略された状態を示す斜視図である。図3は、図2中の領域IIIの拡大図である。図4は、図2中の領域IVの拡大図である。図5は、図3中の線分V-Vに沿った断面図である。直動ユニット1は、直動機構10(図2)と、直動機構10を収容する筐体20(図1)とを主に備えている。
次に、実施の形態2に係る直動ユニット2の構成を、図8および図9に基づいて説明する。実施の形態2に係る直動ユニット2は、基本的に上記実施の形態1に係る直動ユニット1と同様の構成を備え且つ同様の効果を奏するものであるが、直動機構がボールねじである点で異なっている。以下、上記実施の形態1と異なる点について主に説明する。
ここで、その他実施の形態について説明する。
Claims (3)
- 軌道部材と、前記軌道部材の長手方向に沿って直線的に移動可能な移動部材と、を含む直動機構と、
前記直動機構を収容し、前記長手方向に延びるファスナーを含む筐体と、を備え、
前記軌道部材には、前記長手方向に延びる第1転走面が形成されており、
前記移動部材には、前記第1転走面に対向するとともに前記第1転走面との間に転動体転走路を形成する第2転走面が形成されており、
前記直動機構は、前記移動部材が前記軌道部材の前記長手方向に沿って直線的に移動するのに伴って、前記転動体転走路を含む転動体循環路を循環する複数の転動体をさらに含み、
前記ファスナーは、
前記長手方向に延びる第1エレメントと、
前記第1エレメントに沿って前記長手方向に延び、前記第1エレメントと噛み合い可能な第2エレメントと、
前記第1エレメントおよび前記第2エレメントに取り付けられる第1スライダと、
前記第1エレメントおよび前記第2エレメントに取り付けられ、前記第1スライダに対して前記長手方向において離れて位置する第2スライダと、を含み、
前記第1スライダおよび前記第2スライダは、相手が位置する側と反対の向きに移動するのに伴って前記第1エレメントおよび前記第2エレメントを互いに離間させるとともに、相手が位置する側の向きに移動するのに伴って前記第1エレメントおよび前記第2エレメントを互いに噛み合わせ、
前記第1スライダおよび前記第2スライダは、前記移動部材に対して固定可能である、直動ユニット。 - 前記第1スライダから見て前記第2スライダとは反対側に取り付けられ、前記第1スライダ側に移動するのに伴って前記第1エレメントおよび前記第2エレメントを互いに離間させる第3スライダをさらに備えた、請求項1に記載の直動ユニット。
- 前記第2スライダから見て前記第1スライダとは反対側に取り付けられ、前記第2スライダ側に移動するのに伴って前記第1エレメントおよび前記第2エレメントを互いに離間させる第4スライダをさらに備えた、請求項1または請求項2に記載の直動ユニット。
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JPH02166054A (ja) * | 1988-12-12 | 1990-06-26 | Nissan Nihonshiya:Kk | スライドファスナー付袋 |
JP2000230618A (ja) | 1999-02-10 | 2000-08-22 | Thk Co Ltd | 防塵型案内装置 |
JP2007069809A (ja) | 2005-09-08 | 2007-03-22 | Toyota Auto Body Co Ltd | スライド支持機構 |
WO2010067437A1 (ja) | 2008-12-11 | 2010-06-17 | Ykk株式会社 | スライドレール装置に適用される案内溝遮蔽装置とスライドレール装置 |
JP3202894U (ja) * | 2015-12-16 | 2016-02-25 | 株式会社シフレ | 4つのジッパー・スライダを備える鞄 |
JP2017109580A (ja) | 2015-12-16 | 2017-06-22 | Ykk株式会社 | スライドレールカバー、スライドレール装置及びシート装置 |
JP2021164028A (ja) | 2020-03-31 | 2021-10-11 | ブラザー工業株式会社 | 画像形成装置 |
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2021
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- 2022-08-05 EP EP22878187.8A patent/EP4414575A1/en active Pending
- 2022-08-05 CN CN202280059427.1A patent/CN117897561A/zh active Pending
- 2022-08-05 WO PCT/JP2022/030112 patent/WO2023058316A1/ja active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH02166054A (ja) * | 1988-12-12 | 1990-06-26 | Nissan Nihonshiya:Kk | スライドファスナー付袋 |
JP2000230618A (ja) | 1999-02-10 | 2000-08-22 | Thk Co Ltd | 防塵型案内装置 |
JP2007069809A (ja) | 2005-09-08 | 2007-03-22 | Toyota Auto Body Co Ltd | スライド支持機構 |
WO2010067437A1 (ja) | 2008-12-11 | 2010-06-17 | Ykk株式会社 | スライドレール装置に適用される案内溝遮蔽装置とスライドレール装置 |
JP3202894U (ja) * | 2015-12-16 | 2016-02-25 | 株式会社シフレ | 4つのジッパー・スライダを備える鞄 |
JP2017109580A (ja) | 2015-12-16 | 2017-06-22 | Ykk株式会社 | スライドレールカバー、スライドレール装置及びシート装置 |
WO2017104446A1 (ja) * | 2015-12-16 | 2017-06-22 | Ykk株式会社 | スライドレールカバー、スライドレール装置及びシート装置 |
JP2021164028A (ja) | 2020-03-31 | 2021-10-11 | ブラザー工業株式会社 | 画像形成装置 |
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