JP2013094345A - Slider - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slider that enables connection/release between the free ends of springs for automatically pulling a second slide rail toward a first slide rail and the second slide rail to be performed with a simple structure.SOLUTION: The free ends of the springs 22R, 22L for automatically pulling the second slide rail 14 on a movable side toward the first slide rail 12 on a fixing side are magnetically connected to the inner end 14U of the second slide rail 14. When the second slide rail 14 is separated from the first slide rail to reach a predetermined position, the free ends of the springs 22R, 22L are magnetically attracted by a magnetic stopper arranged in the first slide rail and also the magnetic connection with the second slide rail 14 is released.

Description

  The present invention relates to a slider that slidably supports a movable object such as a drawer or a sliding door on a fixed object such as a housing or a wall, and in particular, can be slidably attached to the fixed object and the movable object. When the second slide rail on the movable object side approaches the predetermined position with respect to the first slide rail on the fixed object side among the at least two slide rails to be overlapped, the second slide rail becomes the first slide rail. The present invention relates to an improvement of a slider that is automatically pulled or pulled away from a first slide rail.

  An example of a slider configured to automatically move the movable object to the overlapping position will be described. The slider includes a fixed object wall (for example, an inner wall of a drawer cabinet housing) and a movable object ( For example, it is attached to the drawer cabinet of the drawer cabinet) so that it is possible to smoothly move the movable object to and from the fixed object, and to move the movable object away from the fixed object. When the two objects approach each other, the movable object is automatically drawn to the overlapping position by the spring.

  The slider of this type is attached to a first slide rail attached to the fixed object and a movable object slidably engaged with the first slide rail and moving along the wall surface with respect to the fixed object. 2 and when the movable object is pulled away from the fixed object against the spring, it is released from the free end of the spring at a predetermined position, and at the same time the spring is extended, and the second slide rail is extended. When the free end of the spring maintained in the state is pulled to the first slide rail to a certain position, the second slide rail is automatically pulled to the first slide rail by releasing the spring means from maintaining the extended state. And a spring coupling / release means (see Patent Documents 1 and 2).

  In the prior art sliders disclosed in Patent Documents 1 and 2, one end (fixed end) of the spring coupling / release means is fixed to the first slide rail side, and the other end (movable end or free end) is fixed. In addition to a spring (see reference 6 of Patent Document 1 and reference 14 of Patent Document 2) that is detachably coupled to the second slide rail side, it is held at the free end of this spring and moves in the direction of pulling away the movable object. A spring holding member that moves in the direction of pulling away the movable object along the first slide rail as the second slide rail moves (see reference numeral 3 in Patent Document 1 and reference numeral 12 in Patent Document 2), and a second slide rail Comprises a spring release mechanism that releases the coupling of the second slide rail from the spring holding member when the first slide rail moves from the first slide rail to a predetermined position (spring release position) in the direction of pulling the movable object.

  However, in the slider of the prior art, the spring release mechanism is formed on the first slide rail side and the guide groove into which the guide pin of the spring holding member is engaged (see reference numeral 4 of Patent Document 1 and reference numeral 11 of Patent Document 2). Until the second slide rail reaches the spring release position, the second slide rail side coupling pin (see Patent 9 in Patent Document 1, Reference 8 in Patent Document 2) When the spring holding member and the second slide rail are coupled and the second slide rail reaches the spring release position, the spring holding member is moved. Since the coupling pin on the second slide rail side is displaced from the guide groove and is released from the second slide rail from the spring holding member, the spring coupling / release means has a complicated structure. There was a point.

Japanese Patent Publication No. 5-23763 JP 2004-236773 A

  The problem to be solved by the present invention is that the free end of the spring that pulls the second slide rail toward and away from the first slide rail and the second slide rail are coupled / released with a simple structure. It is to provide a slider that can.

  The problem-solving means of the present invention includes a first slide rail to be attached to a fixed object, and a movable object that slidably engages with the first slide rail and moves along the wall surface with respect to the fixed object. A second slide rail to be attached to the first slide rail, and when the second slide rail is pulled to a predetermined position or separated from the first slide rail, the second slide rail becomes the first slide rail. Spring means for automatically pulling or pulling elastically, and when the second slide rail is pulled or pulled beyond the predetermined position from the first slide rail against the spring means, the second slide rail The slide rail is released from the spring means, and at the same time, the spring means is maintained extended in the predetermined position, and the second slide lever is maintained. In a slider comprising spring coupling / release means for releasing the maintenance of the spring means when the handle is pulled or pulled away from the first slide rail beyond the predetermined position, the spring coupling / release The means is provided at a free end of the spring means and is displaced with a spring-side movable magnetic coupling member that is displaced with the extension of the spring means, and a second slide rail is provided on the second slide rail and moves together with the second slide rail. When the spring means extends until the slide rail side movable magnetic coupling member and the second slide rail move away from or approach the predetermined position with respect to the first slide rail, the spring side movable magnetic coupling member is magnetically moved. And a magnetic stopper that maintains the extended state of the spring means by adhering to the spring means, and the spring-side movable magnetic coupling member and the second slide race And the second slide rail reaches the predetermined position with respect to the first slide rail, and the spring-side movable magnetic coupling member collides with the magnetic stopper. It is another object of the present invention to provide a slider characterized in that the second slide rail side movable magnetic coupling member is coupled to the spring side movable magnetic coupling member until they are combined.

  In the problem solving means of the present invention, one of the spring-side movable magnetic coupling member and the second slide rail-side magnetic coupling member of the spring coupling / release means is a magnet and the other is attracted to the magnet. When the spring-side movable shaft coupling member is a magnet, the magnetic stopper is a magnet-adsorptive material or a sticking material (hereinafter referred to as a magnet-adsorptive material). Although it can be a magnet, if the spring-side movable magnetic coupling member is not a magnet, the magnetic stopper must be a magnet.

  In this case, the second slide rail side movable magnetic coupling member and the magnetic stopper are arranged so that their positions are shifted in a direction perpendicular to the moving direction of the second slide rail so as not to interfere with each other. The form is preferred.

  The spring means may be a pair of tension springs or a tension spring, and the spring means may include a damper that cushions the contraction of the tension spring, and the spring-side movable magnetic coupling member is It is preferable that the damper is supported by the telescopic rod of the damper.

  Otherwise, the spring means includes a guide member for guiding expansion and contraction of the tension spring, and the guide member includes a guide rod sliding in a guide hole or a guide groove, and the spring-side movable magnetic coupling member guides the guide member. The spring-side movable magnetic coupling member itself may slide along the guide hole or the guide groove so that the spring-side movable magnetic coupling member is a part of the guide member. You may also serve.

  According to the present invention, as described above, the coupling / release of the second slide rail and the spring means for pulling the second slide rail toward or away from the first slide rail is performed by the displacement of the spring holding member and the coupling pin. Since it can be performed with a simple magnetic coupling action without requiring the complicated structure of the prior art to be performed, the slider can be provided with a simple structure at low cost, and this coupling / release is magnetic Since the coupling and separation are performed, the spring coupling / release can always be performed properly.

The drawer cabinet in which the slider of the present invention is used is shown, wherein FIG. (A) is a perspective view with the drawer cabinet closed, and FIG. (B) is a perspective view with the drawer cabinet slightly opened. The slider of the first and second slide rails of the slider according to one embodiment of the present invention is in a superposed state (a state corresponding to a state in which the drawer cabinet is closed and the second slide rail is attracted to the first slide rail). FIG. 2A is a side view thereof, and FIG. 2B is a bottom view thereof. The slider in a state in which the second slide rail is slightly separated from the first slide rail is shown. FIG. 4A is a side view thereof, and FIG. The slider in a state in which the second slide rail is completely separated from the first slide rail (a state corresponding to a state in which the drawer cabinet is fully opened) is shown. FIG. (B) is the bottom view. The second slide rail is completely separated from the first slide rail, but shows a malfunctioning slider in which the spring means is returned to the contracted state instead of the extended state, and FIG. FIG. 4B is a bottom view thereof. FIGS. 7A to 7D are bottom views of enlarged cross-sections of main parts in the states of FIGS. The same state as FIG. 3 of the slider by the 2nd Example of this invention is shown, The figure (A) thru | or (C) is the bottom view of the side view, bottom view, and principal part expanded cross section, respectively. FIGS. 7A to 7C are a side view, a bottom view, and a bottom view of an enlarged cross section of a main part, respectively, showing a malfunctioning state of the slider of FIG. A further embodiment of the present invention in which the spring means is composed of one tension spring is supported, wherein FIG. (A) is a cross-sectional view of the main part of the spring means, and (B) is a side view thereof. It is. FIG. 6 is a side view showing a state in which the second slider rail is separated from the first slider rail, although still another embodiment in which the present invention is applied to the slider in the form of automatic separation is shown.

  Referring to the slider 10 according to the preferred embodiment of the present invention, the rider 10 can be applied to a drawer cabinet, a sliding door type cabinet or a window of a building structure, a sliding door of an opening, etc. FIG. When applied to the cabinet 1, when the drawer is closed to a predetermined position, the case where the drawer is automatically pulled toward the closed position is shown. The drawer cabinet 1 includes a housing (fixed object) 2 having an open front surface and a drawer body (movable object) 3 that is housed in the housing 2 so as to be freely inserted and removed. When used in such a drawer cabinet, a pair of left and right sliders 10R, 10L is used. These sliders 10 </ b> R and 10 </ b> L are attached between opposing inner wall surfaces on both sides of the housing 2 and both side surfaces of the drawer body 3, and support the drawer body 3 in the housing 2 so that it can be pulled out.

  Since the pair of sliders 10R and 10L have the same structure except that they are symmetrical, the structure of the slider 10 will be described in detail below as a whole.

  The slider 10 is slidably engaged with the first slide rail 12 to be attached to the inner wall of the housing (fixed object) 2, and slidably engages with the first slide rail 12 along the wall surface. The second slide rail 14 to be attached to the drawer main body (movable object) 3 that moves and the drawer main body (movable object) 3 are pulled to a predetermined position on the housing 2 side (when pulled in). Spring means 20 for automatically and automatically pulling the slide rail 14 to the first slide rail 12, and pulling the second slide rail 14 against the spring means 20 from the first slide rail 12 and the main body 3 and the housing 2 is pulled apart (when pulled out) beyond a predetermined position between the second slide rail (which is also a predetermined position between the first slide rail and the second slide rail). 14 is released from the spring means 20, and at the same time, the spring means 20 at a predetermined position between the drawer body 3 and the housing 2 (that is, a predetermined position between the first slide rail 12 and the second slide rail 14). A spring coupling / release which releases the maintenance of the extended state of the spring means 20 when the second slide rail 14 is drawn to the first slide rail 12 beyond the predetermined position, while maintaining its extended state. Means 30.

  In the illustrated example, the first slide rail 12 is an outer slide rail, and the second slide rail 14 is an inner slide rail, but the first slide rail 12 is the inner side and the second slide rail 14 is the outer side. There may be. In the illustrated example, an intermediate slide rail 16 is provided between the first and second slide rails 12 and 14 (see FIG. 4), but this intermediate slide rail 16 may be omitted. The first and second slide rails 12, 14 have holes for mounting bolts (not shown) used for mounting on the housing 2 and the drawer body 3, respectively.

  The first slide rail 12, the second slide rail 14, and the intermediate slide rail 16 are all made of a metal structural member such as a grooved steel having a U-shaped cross section, but are made of a material other than metal. There may be. The first slide rail 12 and the intermediate slide rail 16 are slidable members (not shown) arranged between the side walls 12S and 16S so that their webs 12W and 16W overlap (part of the ball is exposed from both sides). The second slide rail 14 is slidably fitted to the second slide rail 14 on the opposite side of the web 16W of the intermediate slide rail 16. In order to face each other, they are slidably fitted to each other by a sliding member (not shown) disposed between the side walls 14S and 16S (having the same structure as the sliding member between the side walls 12S and 16S).

  The spring means 20 includes a pair of tension springs 22R and 22L disposed inside the side wall 12S along the left and right side walls 12S of the first slide rail 12, as shown in FIG. One end (fixed end) of the first slide rail 12 is fixed to a spring holding member 24 attached to the inner end of the first slide rail 12 (the end opposite to the direction in which the second slide rail 14 is separated). The ends (free ends) are fixed to both ends of the spring connecting piece 26, respectively. Therefore, the pair of tension springs 22R and 22L can expand and contract by pulling or pushing the spring connecting piece 26. The spring means 20 may be composed of one tension spring. In this case as well, one end (fixed end) of the tension spring is appropriately fixed to the inner end of the first slide rail 12 and the other end ( The free end) has a movable side magnetic coupling member of the spring coupling / releasing means 30 described later.

  The spring coupling / releasing means 30, in particular, as shown in detail in FIG. 6, is a free end (movable end) of the spring means 20, in the form shown, a spring coupling piece of a pair of tension springs 22R, 22L. A spring-side movable magnetic coupling member 32 fixed to 26 and displaced with expansion and contraction of the spring means 20, and a second slide rail provided at the inner end 14U of the second slide rail 14 and moving together with the second slide rail 14. When the spring means 20 is extended to a predetermined position where the second movable rail 34 and the second slide rail 14 are separated from the first slide rail 12 by a predetermined distance, the spring-side movable magnetic coupling member 32 is magnetically moved. It consists of a magnetic stopper 36 that attracts and maintains the spring means 20 in an extended state, and the spring-side movable magnetic coupling member 32 and the second slide rail-side movable magnetic coupling member 34 are also mutually magnetic. The second slide rail side movable magnetic coupling member 34 is attracted to the spring side movable magnetic coupling member 32 at a predetermined position where the second slide rail 14 is separated from the first slide rail 12 by a predetermined distance. Are coupled to the spring-side movable magnetic coupling member 32 until they collide with the magnetic stopper 36.

  In the illustrated embodiment, the spring-side movable magnetic coupling member 32 of the spring coupling / releasing means 30 is composed of a magnet 32M, and the second slide rail-side movable magnetic coupling member 34 and the magnetic stopper 36 are magnets such as iron. The movable magnetic coupling member 32 may be a magnet-adsorptive material such as iron, and both the movable magnetic coupling member 34 and the magnetic stopper 36 may be magnets. The movable magnetic coupling members 32 and 34 and the magnetic All of the stoppers 36 may be magnets.

  Further, the second slide rail side movable magnetic coupling member 34 and the magnetic stopper 36 are arranged so as to be shifted in a direction perpendicular to the moving direction of the second slide rail 14 so as not to interfere with each other. Is preferred. In the illustrated form, the second slide rail side movable magnetic coupling member 34 is formed by bending the tip of the web 14 W of the second slide rail (made of iron) 14, and the magnetic stopper 36 is formed of the first slide rail 12. A portion of the web 12W is cut and raised (see FIG. 6). Therefore, when the first and second slide rails 12 and 14 are at a predetermined position separated by a predetermined distance, the movable magnetic coupling member 34 and the magnetic The stopper 36 is in an opposite state (see FIG. 6B).

  In the illustrated form, the spring means 20 further includes a damper 28 disposed between the pair of tension springs 22R and 22L and having oil or air as a working fluid, and the spring-side movable magnetic coupling member 32 includes the damper. It is supported by 28 telescopic rods 28R.

  Next, the operation of the slider 10 according to the embodiment of FIGS. 1 to 5 will be described in detail with reference to FIG. 6. When the drawer cabinet 1 is closed, the second slide rail 14 of the slider 10 is an intermediate slide. Although housed (overlapped) in the first slide rail 12 via the rail 16 (see FIGS. 2 and 6A), the second slide rail 14 is on the spring side of the spring coupling / releasing means 30. Since the second slide rail side movable magnetic coupling member (magnet adsorbing material) 34 is adsorbed to the magnet 32M which is the movable magnetic coupling member 32, the first slide rail 12 side (the direction in which the drawer is closed) is closed by the spring means 20. The drawer cabinet 1 is kept closed.

  When the drawer body 3 is pulled forward to open the drawer cabinet 1, the spring is moved by suction between the spring-side movable magnetic coupling member 32 (magnet 32M) and the second slide rail-side movable magnetic coupling member 34 (magnet adsorbing material). While the pair of tension springs 22R and 22L of the means 20 are extended, the movable magnetic coupling members 32 and 34 move in the opening direction of the drawer, and the spring-side movable magnetic coupling member 32 (magnet 32M) abuts the magnetic stopper 36. (See FIGS. 3 and 6B). When the drawer body 3 is further pulled from this position in the opening direction, the second slide rail-side movable magnetic coupling member 34 is attached to the magnetic stopper 36 and remains in this position while the spring-side movable magnetic coupling member 32 remains at this position. Because of the separation from the side movable magnetic coupling member 32, the second slide rail 14 can be pulled away from the first slide rail 12 with a light force without being released from the spring means 20 and subjected to spring resistance, and is therefore pulled out. The main body 3 can be smoothly opened (see FIGS. 4 and 6C). In the illustrated embodiment, since the intermediate slide rail 16 is provided between the first and second slide rails 12 and 14, as shown in FIG. Further, the drawer length of the drawer body 3 is increased.

  When the drawer body 3 is pulled into the housing 2 from the drawer open state shown in FIG. 4, the second slide rail 14 enters the first slide rail together with the intermediate slide rail 16, and finally the second slide rail is movable. The magnetic coupling member 34 abuts against the spring-side movable magnetic coupling member 32, so that both the movable magnetic coupling members 32 and 34 are attracted to each other (see FIGS. 3 and 6B). When the drawer body 3 is pulled further inward beyond this position, the spring-side movable magnetic coupling member 32 is pulled away from the magnetic stopper 36. Accordingly, the second slide rail 14 is connected to the spring means 20 and the extended state of the spring-side movable magnetic coupling member 32 is released. Therefore, even if the hand is released from the drawer body 3, the spring means 20 is released. As the second slide rail 14 is pulled toward the first slide rail 12 in the pull-in direction by the contraction of the pull-out, the drawer body 3 is automatically pulled into the housing 2 (see FIG. 6A). In this case, the damper 28 cushions the pulling of the second slide rail when the drawer body 3 is pulled into the housing 2, so that the drawer body 3 is gently received in the housing 2 without receiving an impact. Be drawn into.

  When the drawer body 3 is suddenly pulled out from the housing 2, the movable magnetic coupling members 32 and 34 on the spring side and the second slide rail side of the spring coupling / release means 30 are separated (FIGS. 5 and 6). D))), the drawer body 3 is pulled out of the housing 2 without receiving any resistance of the spring means 20. In this case, the spring-side movable magnetic coupling member 32 is in its original position, that is, the drawer body 3 Remains in the same position as when fully closed (see FIG. 6D). When the drawer body 3 is pulled into the housing 2 from the state in which the drawer body 3 is opened in this way, the drawer body 3 acts as the spring means 20 even if the second slide rail side movable magnetic coupling member 34 exceeds the magnetic stopper 36. Therefore, the drawer body 3 must be pushed to the fully closed position while being pushed by hand. When the drawer body 3 is completely drawn, the second slide rail side movable magnetic coupling member 34 is moved to the spring side movable magnetic coupling. It is adsorbed and coupled to the member 32 to return to a normal state. In this way, the functions of the spring means 20 and the spring coupling / release means 30 are restored, and the slider 10 can be returned to normal.

  Another embodiment of the present invention is shown in FIGS. 7 and 8, in which the spring means 20 is not provided with a damper 28 but between a pair of tension springs 22R, 22L. The embodiment shown in FIGS. 1 to 6 is provided except that a guide member 28G having a guide rod 28GR arranged and connected to the spring-side movable magnetic coupling member 32 to guide expansion and contraction of the pair of tension springs 22R and 22L is provided. The form is the same. In this case, when the spring means 20 pulls the second slide rail 14, it does not have a buffering action, but a slight buffering is performed by the sliding resistance of the guide rod 28GR of the guide member 28G.

  As already mentioned, the spring means 20 may consist of one tension spring, in which case this one tension spring is for example a spring side attached to its free end, as shown in FIG. The movable magnetic coupling member 32 is guided along the guide groove (or guide hole) 28GG of the guide member 28G, and the spring-side movable magnetic coupling member 32 is in front of a predetermined position (a position where it abuts against the magnetic stopper 36). Then, it is coupled to the second slide rail side movable magnetic coupling member 34 and exposed from the guide member so as to abut against the magnetic stopper 36 at the predetermined position (see FIG. 9B). In this way, the spring-side movable magnetic coupling member 32 is not hindered from being attracted to the second slide rail-side movable magnetic coupling member 34 and the magnetic stopper 36. In FIG. 9, reference numeral 26 </ b> P denotes a guide pin extending from both sides of the spring holding member 26 </ b> H that holds the movable magnetic coupling member 32.

  In the above-described embodiment, when the second slide rail on the movable object side is pulled to a predetermined position with respect to the first slide rail on the fixed object side, the slider is automatically pulled to the first slide rail side. However, when the second slide rail on the movable object side moves away from the first slide rail on the fixed object side by a predetermined position, the present invention is also applied to a slider in which the second slide rail is automatically pulled away. The same can be applied.

  FIG. 10 shows an embodiment of this automatic pull-off mode. In this embodiment, as shown in FIG. 10, one end of each of the tension springs 22R and 22L of the spring means 20 is the end of the first slide rail (first The end of the slide rail 14 on the side where the slide rail 14 is pulled apart is fixed to a spring holding member 24, and a movable magnetic coupling member 32 (magnet 32M in the illustrated form) is attached to the spring connecting piece 26 on the other end. The first slide rail 12 is provided with a magnetic stopper 36 on a part of the side on which the second slide rail 14 is drawn from the spring holding member 24. FIG. 10A shows that the second slide rail 14 is automatically pulled most away from the first slide rail 12 by being pulled by the tension springs 22R and 22L in the direction in which the second slide rail 14 is pulled away from the first slide rail 12. When the second slide rail 14 is pulled toward the first slide rail 12 from this state, the second slide rail 14 side movable magnetic coupling member 34 and the spring side magnetic coupling member 32 are When the tension springs 22R and 22L are extended by the coupling and the movable magnetic coupling member 32 collides with the magnetic stopper 36, the second slide rail 14 thereafter has its magnetic coupling member 34 separated from the spring-side magnetic coupling member 32. Then, the second slide rail 14 is released from the tension springs 22R and 22L and freely enters the first slide rail 12. It is drawn. Conversely, the second slide rail 14 is pulled out from the second first slide rail 12, the magnetic coupling member 34 abuts against the spring side magnetic coupling member 32, and the spring side magnetic coupling member 32 is further pulled away from the magnetic stopper 36. The second slide rail 14 is automatically pulled away from the first slide rail 12 even if the hand is released by the tension springs 22R and 22L.

  According to the present invention, the spring means for pulling the second slide rail toward or away from the first slide rail and the second slide rail are coupled / released by a simple magnetic coupling action, so that the slider has a simple structure. Can be provided at low cost and has high industrial applicability.

DESCRIPTION OF SYMBOLS 1 Drawer cabinet 2 Housing | casing 3 Drawer main body 10 Drawer slider 12 1st slide rail 12W 1st slide rail web 12S 1st slide rail side wall 14 2nd slide rail 14W 2nd slide rail web 14S 1st Side wall of slide rail 16 16 Intermediate slide rail 16W Intermediate slide rail web 16S Side wall of intermediate slide rail 20 Spring means 22R, 22L A pair of tension springs 24 Spring holding member 26 Spring connecting piece 26H Spring holding member 26HP Guide pin 28 Damper 28G guide member 28GR guide rod 30 Spring coupling / release means 32 Spring side movable magnetic coupling member 32M Magnet 34 Second slide rail side movable magnetic coupling member 36 Magnetic stopper

Claims (7)

  A first slide rail to be attached to a fixed object, and a second slide to be attached to a movable object that slidably engages the first slide rail and moves along the wall surface with respect to the fixed object When the rail and the second slide rail are pulled or separated to a predetermined position with respect to the first slide rail, the second slide rail is automatically pulled to the first slide rail automatically or When the second slide rail is pulled or pulled away from the first slide rail beyond the predetermined position against the spring means, the second slide rail is moved away from the spring means. At the same time as releasing, the spring means is maintained in the extended state at the predetermined position, and the second slide rail exceeds the predetermined position. A slider comprising spring coupling / releasing means for releasing the maintenance of the extended state of the spring means when pulled or pulled away from the first slide rail, wherein the spring coupling / releasing means is free of the spring means. A spring-side movable magnetic coupling member that is provided at an end and is displaced with expansion and contraction of the spring means; and a second slide-rail-side movable magnetic coupling member that is provided on the second slide rail and moves together with the second slide rail; When the spring means expands until the second slide rail moves away from or approaches the predetermined position with respect to the first slide rail, the spring-side movable magnetic coupling member is magnetically attracted to the spring means. A magnetic stopper that maintains the extended state, and the spring-side movable magnetic coupling member and the second slide rail-side movable magnetic coupling member are also compatible with each other. Until the second slide rail reaches the predetermined position with respect to the first slide rail and the spring-side movable magnetic coupling member abuts against the magnetic stopper. A slider characterized in that a rail-side movable magnetic coupling member is coupled to the spring-side movable magnetic coupling member.   2. The slider according to claim 1, wherein one of the spring-side movable magnetic coupling member and the second slide rail-side magnetic coupling member of the spring coupling / release means is a magnet, and the other is a magnet attracting member. When the spring-side movable magnetic coupling member is a magnet, the magnetic stopper is a magnet-adsorptive material or a magnet, and the spring-side movable magnetic coupling member is a magnet. Otherwise, the magnetic stopper is a magnet.   3. The slider according to claim 1, wherein the second slide rail side movable magnetic coupling member and the magnetic stopper are perpendicular to a moving direction of the second slide rail so as not to interfere with each other. A slider characterized by being displaced in the direction.   4. A slider according to claim 1, wherein the spring means comprises one or more tension springs.   5. The slider according to claim 1, wherein the spring means includes a damper that cushions the contraction of the tension spring, and the spring-side movable magnetic coupling member is supported by a telescopic rod of the damper. A slider characterized by   5. The slider according to claim 1, wherein the spring means includes a guide member that guides expansion and contraction of the tension spring, and the spring-side movable magnetic coupling member serves as a guide rod of the guide member. A slider characterized by being supported.   5. The slider according to claim 1, wherein the spring means includes a guide member for guiding expansion and contraction of the tension spring, and the spring-side movable magnetic coupling member is movable on the second slide rail side. A slider characterized by sliding in a guide hole or a guide groove of the guide member so as not to impede adsorption to the magnetic coupling member and the magnetic stopper.

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