JP2010156199A - Sliding assist mechanism and pull-in unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform pull-in operation, for example, in both closing and opening a sliding door while attaining simplification. <P>SOLUTION: A sliding assist mechanism for assisting operation for switching a moving body from a first position on the body side to a second position or from the second position to the first position includes a case 1 mounted to the body side; a first moving member and a second moving member (sliders 2A, 2B) slidably arranged in the case 1; a pair of latches 5, 5 pivoted to the moving members respectively and releasably locked to corresponding parts on the case side; and an energizing means 3 provided between both moving members to energize latch support parts of the respective moving members in mutually approaching directions. When the moving body is switched halfway to the first position from the second position or halfway to the second position from the first position, locking of one latch is released by an engaging pin 9 provided at the moving body, and the engaging pin is pulled together with the latch to the other latch side into the first position or the second position with the approaching drive through the moving members and energizing means 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a sliding assist mechanism that assists an operation of switching a moving body from a first position to a second position on the main body side, and from a second position to a first position, and a retracting unit used therefor .

FIG. 11 shows a structure disclosed in Patent Document 1. Reference numeral 21 denotes a retracting unit (sliding door closer) attached to the upper side of the main body side opening, and reference numeral 3 denotes an operation provided on the sliding door side which is a moving body. It is a member (engagement pin). The retracting unit 21 includes a case 22, a hook body 36, a biasing means 35, and the like. The case 22 has a rectangular container shape, and includes an engaging groove portion 25 extending in the longitudinal direction from one end side, and a sliding groove portion 31 (a linear moving groove portion 32 and a rotating groove portion bent at one end side of the moving groove portion 32. 33). The hook body 36 forms a holding concave portion 46 that engages and disengages the operating member 3 and engaging convex portions 44 and 45 that fit into the sliding groove portion 31. The urging means 35 urges the hook body 36 toward the other end side of the sliding groove portion 31 with one end locked to the hook body 36 and the other end locked to the case 22 side. The urging force is accumulated in the process of sliding from the closed position to the open direction. The operating member 3 is attached to the upper end surface of the sliding door so as to be swingable along the sliding hole 8 of the plate 5 via the automatic return mechanism 4 and to be returned by an urging force (not shown).

In the above construction, the operation member 103 as shown in FIG. 11 (a) move toward the main body side of the retracting unit 21 by a closing operation of the sliding door. Then, the actuating member 3 is fitted into the engaging groove 25 and slides along the engaging groove 25, and then is engaged and held with the holding recess 46 of the hook body 36 as shown in FIG. The In this process, the hook body 36 rotates around the engaging convex portion 45 while the engaging convex portion 44 is guided by the rotating groove portion 33 of the sliding groove portion 31 and changes from the standby posture to the retracted posture. The moving groove 32 is fitted. By this fitting, the hook body 36 is slid to the rear end side of the case 22 by the urging force of the urging means 35 in a state in which the operation member 3 is restrained, thereby completing the drawing. Further, from this state, the operation member 3 is slid to the front end side of the case 22 together with the hook body 36 by opening the sliding door, and the urging force is accumulated in the urging means 35. When the sliding door is further opened, the engaging projection 44 is moved from the moving groove portion 32 to the rotating groove portion 33 by the return operation of the operating member 3 via the automatic return mechanism 4. ) To the standby position.

  Patent Document 2 discloses a structure having a buffer member that generates a frictional force when pressed by an operating member (stopper pin) as a braking mechanism that reduces the moving speed of the sliding door, together with the above-described retracting unit. Has been. This braking force is applied separately from the rotary damper and is generated in proportion to the sliding door speed generated by the force of the actuating member pushing the buffer member in the case.

JP 2005-290769 A JP 2007-16521 A

In the above-described conventional structure, when the sliding door is closed, it is automatically switched from the middle to the closed position by the biasing force of the biasing means 35, so that the occurrence of the incompletely closed state of the sliding door is surely eliminated. it can. However, in the conventional structure, for example, left and right to open and close the sliding door A, the difference pull B, such as shown in FIG. 12, and applied to a so-called pull difference door, closed position the sliding door A, B in the middle, and the middle When automatically retracting to the open position, the retracting units 21A to 21D must be attached to at least four locations on the main body side, which increases the cost and installation man-hours and restricts the adoption itself. In FIG. 12 , the retracting unit 21A is retracted when the sliding door A is closed, the retracting unit 21B is retracted when the sliding door B is opened, the retracting unit 21C is retracted when the sliding door A is opened, and the retracting unit 21D is the sliding door. Responsible for the closing of B.

  Accordingly, an object of the present invention is to provide a pull-in operation both when the sliding door is closed and opened, for example, while simplifying the structure, and each pull-in operation when the sliding door is closed and opened is also configured simply. Therefore, it is possible to reduce the cost and the man-hours for mounting and to improve the use expansion and usability.

The invention according to claim 1, in retracting unit constituting the sliding assist mechanism to assist the operation for switching the mobile from a first position of the main body side from the second position to the first position or the second position, both longitudinal ends A case having a locking groove on the side, a braking means comprising a cylinder and a piston rod, a latch pivotally supported on the tip side of the cylinder and the piston rod, respectively, and provided between the latches. Biasing means for biasing the latches toward each other , and at least one of the latches is locked in the locking groove of the case .

In the present invention described above, the moving body includes drawers in addition to sliding doors. The main body includes a sliding door frame and a drawer storage. The first position indicates a completely closed position or an open position of the moving body, and this includes a closed position where the moving body is completely pushed into the storage portion or an opened position where the moving body is pulled out. The second position indicates a completely open position or a closed position of the moving body, and this includes an open position where the moving body is completely pulled out from the storage portion or a closed position where the moving body is pushed in. In the claims 5-7, the actuating member, "releases the locking of one of the latch, and first with the approaching driving through the urging means the actuating member to the latch side of the other with the latch As long as it functions to “draw to the position or the second position (moving body)”, it is not limited to the engagement pin of each form, but may be a pin configuration as in Patent Documents 1 and 2.

(A) The invention of claim 2 is characterized in that, in claim 1, the latch has a convex portion protruding from an outer surface, and the convex portion is engaged with the locking groove .
(A) The invention of claim 3 is characterized in that, in claim 1 or 2, the latch is pivotally supported by sliders respectively provided at the tip of the cylinder and the piston rod.
(C) The invention of claim 4 is the coil spring according to claim 3, wherein the biasing means is a coil spring having one end locked to one of the sliders and the other end locked to the other of the sliders. The sliders are separated from each other against the urging force of the coil spring.

(D) The invention of claim 5 is a sliding assist mechanism that assists in switching the moving body from the first position on the main body side to the second position or from the second position to the first position. A case having a groove, a braking means including a cylinder and a piston rod, a latch pivotally supported on the tip end side of the cylinder and the piston rod, and a latch provided between the latches. A retracting unit comprising a biasing means biasing in the approaching direction is provided on the upper side of the frame of the main body, the moving body is a sliding door, and the latch locks the locking groove in the case. Two actuating members to be released are provided in a protruding manner, and at least one of the latches is locked in a locking groove of the case.

(E) The invention of claim 6 is a sliding assist mechanism for assisting in the operation of switching the moving body from the first position on the main body side to the second position or from the second position to the first position. A case having a groove, a braking means including a cylinder and a piston rod, a latch pivotally supported on the tip end side of the cylinder and the piston rod, and a latch provided between the latches. A retracting unit comprising a biasing means biasing in the approaching direction, the retracting unit being provided at a lower side of the frame of the main body, the moving body being a sliding door, and the latch locking the locking groove of the case. Two actuating members to be released are provided in a protruding manner, and at least one of the latches is locked in a locking groove of the case.
In addition, the specification of claims 5 and 6 is, for example, the moving body is a sliding door, and the retracting unit is a substantially middle portion of the upper side of the main body and / or the lower side of the frame where the sliding door is arranged. It is the structure attached to.

(F) The invention of claim 7 is a sliding assist mechanism that assists in the operation of switching the moving body from the first position on the main body side to the second position or from the second position to the first position. A case having a groove, a braking means including a cylinder and a piston rod, a latch pivotally supported on the tip end side of the cylinder and the piston rod, and a latch provided between the latches. A retracting unit comprising a biasing means biasing in the approaching direction is provided in the housing portion of the main body, the moving body is a drawer, and the latch is locked to the locking groove of the case Two actuating members are provided so as to release the above, and at least one of the latches is locked in the locking groove of the case.
(G) The invention of claim 8 is characterized in that, in any of claims 5, 6 and 7, the latch is pivotally supported by sliders respectively provided at tip ends of the cylinder and the piston rod. .
(9) The invention of claim 9 is the coil spring according to claim 8, wherein the biasing means is a coil spring having one end locked to one of the sliders and the other end locked to the other of the sliders. The sliders are separated from each other against the urging force of the coil spring.

In the inventions of claims 1 and 5 to 7 , the retracting unit comprises a case, a braking means comprising a cylinder and a piston rod, a latch and a single urging means, and the moving body is closed (the pushing position in claim 7). way switching from) in the opening direction, and open (the way of switching from claim 7 in the drawn-out position) in the closing direction, that is automatically pulled in閉位location (claim by the biasing force of the biasing means moving body from halfway through for switching on the 7 depressed position) or open position (claim 7 in the drawn-out position), it can be improved expand applications and usability by suppressing cost and mounting steps by simplified as compared with the conventional structure.

According to a second aspect of the present invention , the latch has a convex portion that engages with a locking groove of the case, and in the third and eighth aspects of the invention, the latch is pivotally supported by a slider provided at the tip of the cylinder and the piston rod, respectively. Therefore, in particular, since it can be configured by a pair of sliders, that is, the same shape or similar members, for example, the shape of each slider, the sliding guide configuration for the case, and the like can be simplified.

In the inventions of claims 4 and 9, the urging means is a simple coil spring similar to that of Patent Document 1, and the sliders are separated from each other against the urging force of the coil spring. .

(A) is a bottom view of the retracting unit of the first embodiment, (b) is a side view, (c) is a top view, and (d) is a right end view. It is an AA arrow expanded sectional view of FIG.1 (b). It is a BB arrow expanded sectional view of Drawing 1 (b). (A) is a schematic diagram which shows the relationship between the said drawing-in unit and the frame of the main body side which has arrange | positioned the sliding door, (b) is a schematic diagram which shows the fully open state of the opening part which switched the sliding door to the open position. (C) is a schematic diagram which shows the fully closed state of the opening part which switched the sliding door to the closed position. (A) And (b) is a schematic diagram which shows the principal part of the drawing-in unit in the state of Fig.4 (a). (A) And (b) is a schematic diagram which shows the principal part of the drawing-in unit in the state of FIG.4 (b) and (c). (A) is a bottom view which shows the case of the said drawing-in unit, (b) is a side view, (c) is CC sectional view taken on the line of (a). (A) is a top view which shows the cover of the said case, (b) is a side view, (c) is DD sectional view taken on the line of (a). (A) is an external view which shows the latch of the said drawing unit, (b) and (c) is an external view which shows two sliders of the said drawing unit. (A) And (b) is a schematic diagram which shows the two application examples of the said drawing-in unit. It is explanatory drawing which shows the mechanism principal part of patent document 1. FIG. It is explanatory drawing in the case of applying the mechanism of patent document 1 to a sliding door.

The embodiment of the present invention you described with reference to the drawings. Name your, it is simplified by omitting the part on the drawing in each of the figures. In FIG. 5 and FIG. 6, the piston type damper which is a braking means is omitted for easy understanding of the operation. In the following description, detailed mechanism wherein, in the order of the drawing unit and the assembly and work movements of the forms.

(Mechanism features) sliding assist mechanism of the present invention, the retracting unit 6 or 6A is attached to the main body 7 side as illustrated in FIG. 10, a plurality of the operating member provided on the sliding door A~C side as moving body It consists of an engaging pin 9. Here, the main body 7 is, for example, a kitchen or a shelf having an opening, or a desk or a copying machine having a storage space. The moving body is not limited to the sliding doors A and B or the sliding door C, and may be a drawer for storage, etc., and is in a closed position (drawing body) along a guide rail provided in the opening of the main body 7 or the storage space. Is equivalent to the push-in position) and the open position (corresponding to the pull-out position in the drawer). Also, argument write unit 6 or 6A is the type of moving object of interest as illustrated in FIG. 10, it is roughly classified into the following two configurations.

A 1st structure is the drawing-in unit 6 quoted in the form. The retracting unit 6, as mobile, as it is used in the case of FIG. 10 (a) each sliding door A constituting the pull difference doors, B the like pull each case 1 attached to the present body 7 side And a first moving member and a second moving member (a pair of sliders 2A and 2B in the form) which are slidably disposed in the case, respectively, and are pivotally supported by the moving members, respectively, and the case 1 side A pair of latches 5 that are releasably latched to the corresponding portions of the movable member, and a biasing means 3 that is provided between the two moving members and biases the latch support portions of the respective moving members toward each other. These two sets are arranged with respect to case 1. When the pull-in unit 6 is used, two engaging pins 9 are projected from the sliding door A and the sliding door B, respectively.

The second configuration is a pull-in unit 6A used when a single sliding door C is slid with respect to the opening of the main body 7A as the moving body illustrated in FIG. Although not shown, the retracting unit 6A is pivotally supported by a first moving member and a second moving member (a pair of sliders 2A and 2B in the form) that are slidably disposed, and the moving members, respectively. And a pair of latches 5 that are releasably latched to the corresponding portion on the case 1 side, and provided between the both moving members to urge the latch support portions of the respective moving members toward each other. The biasing means 3 is disposed with respect to the case (in this configuration, the size is approximately half that of the case 1). In other words, retracting unit 6A is one side of the slider 2A from FIGS. 2 and 3, and 2B, the urging means 3 and damping means 4, a configuration is omitted and latch 5,5, following the retracting unit 6 Since it is easily understood from the above, the description of itself is omitted. Moreover, when using this drawing-in unit 6A, the two engagement pins 9 are protrudingly provided with respect to the sliding door C which is a moving body.

(Retraction Unit of Form) FIG. 1 shows a retraction unit, FIGS. 2 and 3 show the internal configuration of the retraction unit, FIGS. 4 and 10 show usage examples, and FIGS. 7 to 9 show components of the retracting unit. The pull-in unit 6 of the form is arranged in the case 1 and is slid in the direction in which the sliders 2A and 2B slide toward and away from each other, and the urging means 3 that urges the sliders 2A and 2B toward each other. And a pair of latches 5 and 5 that are pivotally supported by the sliders 2A and 2B and can be held in a separated state by being releasably locked to corresponding portions of the case 1. .

  Among them, the case 1 is integrally formed with a space portion 10 having an opening on the lower side as shown in FIGS. 1, 7, and 8, and a mounting portion 10 a that extends to the left and right of the space portion 10. And a cover 15 attached so as to close the space 10. The space portion 10 has an elongated rectangular container shape and is partitioned by an upper surface 11, both side surfaces 12, and left and right end surfaces 13. The cover 15 is formed in a flat container shape that can be accommodated in the space 10, and the inner side is partitioned by a lower surface 16, both side surfaces 17, left and right end surfaces 18, and a partition portion 17 b that bisects the inside. In the present embodiment, the case 1 is a space portion having an opening on the lower side. However, the unit may be installed on a bottom surface portion or a side portion. In this case, the space portion may be opened on the lower side. It becomes a space part which opened a space part which opened the upper side, and a side part.

  The both side surfaces 12 and both side surfaces 17 are provided with a plurality of pairs of convex locking portions 12a and hole-shaped engaging portions 17a that are engaged with each other when the cover 15 is disposed in the space portion 10. Each end surface 13 and each end surface 18 have concave or reverse concave openings 13a, 18a that communicate with each other when the cover 15 is disposed in the space 10 and through which the engagement pin 9 is passed. Is provided. A guide hole 18b is formed in the lower surface 16 on the cover side so as to communicate with the left and right openings 18a and 18a. For this reason, the engagement pin 9 can enter and leave the case 1 along the guide hole 18 b from the opening 13 a of the end surface 13 and the opening 18 a of the end surface 18 with respect to the case 1.

  Further, the upper surface 11 and the lower surface 16 are provided with mounting holes 12c and 16a, two slider guide grooves 12b and 16b, and two latch guide grooves 14 and 19, substantially facing each other. Among these, screws S are screwed into the mounting holes 12c and 16a when the cover 15 is mounted in the space 10. Each of the guide grooves 12b and 16b is a pair of linear grooves, and guides the sliding of the sliders 2A and 2B in a state of being fitted to the protrusions 22 or 32 provided on the upper and lower surfaces of the sliders 2A and 2B. Each of the guide grooves 14 and 19 includes a pair of linear grooves 14a and 19a parallel to the guide grooves 12b and 16b, and substantially L-shaped locking grooves 14b and 19b provided on both sides of the linear grooves 14a and 19a. . Each of the guide grooves 14 and 19 has a convex portion 52 provided on the upper and lower surfaces, which will be described later, and the latch 5 slides along the linear grooves 14a and 19a in a state where the convex portion 52 is fitted. The movement is guided, and the protrusion 52 is engaged with the locking grooves 14b and 19b, thereby locking the sliding of the latch 5 (and the slider). Each of the locking grooves 14b and 19b is formed so that the groove width at the tip is slightly larger than the groove width of the rising base portion so that the locking is not inadvertently released when the convex portion 52 of the latch 5 is engaged. Has been.

  The sliders 2A and 2B have a block shape arranged in the space between the case-side upper surface 12 and the cover-side lower surface 16 as shown in FIGS. 2, 3 and 9, and the upper and lower surfaces 20, 21 or the upper surface. The projections 22 or 32 are formed on the lower surfaces 30 and 31, and the grooves 23 or 33 for restricting the movement of the latch 5 are provided. The coil spring corresponding to the biasing means 3 corresponds to the block-like side surface. The point which forms the latching shaft 25 or 35 which latches an edge part, and the point which forms the shaft hole 26 or 36 which pivotally supports the latch 5 via the shaft 8 like FIG. It is common. Here, each protrusion 22, 32 extends linearly from one end of the upper and lower surfaces toward the other end, and fits with the above-described guide grooves 12b, 16b. Each of the grooves 23 and 33 is located on the side where the shaft hole 26 or 36 is provided, and extends linearly from one end to the other end side. The locking shafts 25 and 35 and the shaft holes 26 and 36 are each provided with a support portion 24 or 34 projecting one step on one side of the block shape, and the locking shafts 25 and 35 are projected on the end surface of the support portion 24 or 34. At the same time, the shaft holes 26 and 36 penetrate the support portion 24 or 34 vertically.

  The slider 2A includes a holding part 27 having a substantially U-shaped cross section disposed along one side opposite to the support part 24 and a diameter smaller than that of the holding part 27 located on one end side of the holding part 27. A U-shaped clamp portion 28a and a U-shaped clamp portion 28b which is located on the other end side of the holding portion 27 and is smaller in diameter than the clamp portion 28a are provided. On the other hand, the slider 2B has a holding hole 37 penetrating along one side opposite to the support part 34, and a mounting hole 38 (FIG. 2) with a part of the holding hole 37 having a small diameter. For example).

  When one of the sliders 2A and 2B is slid while the other is slid, and when the other is slid while the other is slid, the sliding is braked by the braking means 4. And in this form, both sliders 2A and 2B have a different shape because the piston type damper is used as the braking means 4. However, if the rotary damper is used as the braking means, the same shape or An approximate shape can be set.

  Further, the latch 5 is assembled to the sliders 2A and 2B so as to be rotatable through the shaft 8 inserted into the shaft holes 26 and 36 on the support portions 24 and 34 side. As shown in FIG. 9, the latch 5 is provided on a coaxial line at a hook portion 50, a pair of arm portions 51 protruding from both sides of the base portion of the hook portion 50, and a substantially intermediate portion of each arm portion 51. Shaft holes 53, projecting portions 52 projecting from the outer surface of each arm portion 51, and projecting in the same direction as the hook portions 50 provided near the shaft holes 53 of each arm portion 51. It has the support part 54 integrally. Among these, the hook portion 50 has a shape capable of restraining the engaging pin 9 in a state where the latch 5 is rotated around the shaft 8 as shown in FIG. Each arm portion 51 maintains an interval corresponding to the plate thickness of the support portion 24 or 34 described above.

(Assembly) For example, after each latch 5 is pivotally supported by the sliders 2A and 2B, the sliders 2A and 2B are attached to a piston damper as a braking means. Two sets of these are produced, assembled into the case 1 together with the urging means 3, and the cover 15 is attached to the case 1 to complete the retracting unit 6.

  First, the respective latches 5 are assembled to the sliders 2A and 2B so as to be rotatable through the shafts 8 inserted into the shaft holes 26 and 36 on the support portions 24 and 34 side. That is, each latch 5 arranges the support portion 24 of the slider 2A or the support portion 34 of the slider 2B between the arm portions 51, and the shaft hole 53 and the shaft hole 26 or the shaft hole 53 and the shaft hole 36. After matching, the shaft 8 is pivotally supported with respect to the slider 2A or 2B by being inserted into each shaft hole. Note that both ends of the shaft 8 are prevented from coming off as appropriate.

  Next, the slider 2 </ b> A and the slider 2 </ b> B are connected via a piston type damper that is a braking means 4. The piston type damper may be a known one (for example, Japanese Patent Application Laid-Open No. 2006-29564). The piston type damper includes a cylinder 40 and a piston rod 41 that gently protrudes and retracts in the cylinder 40, and the piston rod 41 is fixed. Any structure may be used as long as it is gently driven with respect to the cylinder 40 or a piston rod 41 to which the cylinder 40 is fixed. In this embodiment, as shown in FIG. 2, the slider 2 </ b> A pushes the cylinder tip portion into the holding portion 27 from the radial direction and restrains it, and engages the cylinder corresponding portion with the clamp portions 28 a and 28 b at both ends. Is attached to the cylinder 40. On the other hand, in the slider 2B, the tip end of the piston rod 41 is inserted from the other end side of the holding hole 37 through the mounting hole 38 with the tip end of the piston rod 41 inserted into the holding hole 37 from one end side. It is attached to the piston rod 41 in a state of being locked to.

  Next, the above-described sliders 2A and 2B with the latch 5, the braking means 4, and the urging means 3 are made into a set, and the two sets are arranged with respect to the case 1 and covered with the cover 15. Here, for example, as shown in FIG. 5, the slider 2 </ b> A and the slider 2 </ b> B fit the corresponding protrusion 22 or the protrusion 32 with respect to the guide groove 12 b of the case 1, and each latch 5 is engaged with the guide groove 14 of the case 1. The corresponding convex part 52 is fitted, and from that state, the coil spring which is the urging means 3 is disposed between the sliders 2A and 2B. That is, one end of the coil spring is locked to the locking shaft 25 of the slider 2A, and the other end is locked to the locking shaft 35 of the slider 2B, thereby urging the sliders 2A and 2B closer to each other. It becomes possible.

  From the above state, preferably, as shown in FIG. 5, the slider 2A and the slider 2B are separated to the maximum L against the biasing force of the biasing means 3, and the convex portion 52 of the latch 5 on the slider 2A side is moved to one side. The engaging groove 14b is engaged, and the convex portion 52 of the latch 5 on the slider 2B side is engaged with the other engaging groove 14b. In this process, the latch 5 on the slider 2A side and the latch 5 on the slider 2B side are arranged so that the hook portion 50 approaches the slider side as shown in FIG. 6 and FIG. This is hereinafter referred to as a retracted posture), and the hook portion 50 is moved away from the slider side with the shaft 8 as a fulcrum (a posture for disengaging from the engagement pin 9, hereinafter referred to as a non-retractable posture). Is done. In the retracted posture, the latch 5 is maintained in the posture in a state where the support portion 54 is fitted to the groove 23 of the slider 2A or the groove 33 of the slider 2B. Finally, the cover 15 is attached to the case 1. In this operation, after the cover 15 is disposed in the case side space portion 10, a plurality of screws S are screwed into the cover side mounting hole 16a from the case side mounting hole 12a.

(Operation) In the assembled state, the retracting unit 6 which is the main part of the manufactured sliding assist mechanism is configured such that each slider 2A, 2B, each latch 5, the braking means 4, and the biasing means 3 are connected to the case-side upper surface 12. It is sandwiched between the cover side lower surface 16. The sliders 2A and 2B are fitted in the upper and lower guide grooves 12b and 16b corresponding to the upper and lower protrusions 22 and 32, and are slid while maintaining the fitted state. Each latch 5 is fitted into the corresponding upper and lower guide grooves 14 and 19 with the upper and lower convex portions 52, and when the respective convex portions 52 are fitted into the linear grooves 14a and 19a, the above-described pulling posture is established. When engaged with the locking grooves 14b and 19b, the non-retraction posture described above is switched.

  Next, a specific operation will be described in detail with reference to FIG. 10 (a) and FIGS. 4 schematically shows a case where the above sliding assist mechanism (retraction unit 6) is applied to the sliding door of FIG. 10A, and reference numeral 70 denotes a sliding door provided in the opening on the main body 7 side. The upper side guide rail is assumed. FIG. 4A shows a state in which the sliding doors A and B are half-opened, and shows a schematic positional relationship between the pull-in unit 6 attached to the guide rail 70 side and the engagement pins 9 provided on the sliding doors A and B. Yes.

(1) In FIG. 4, when the sliding doors A and B are switched to the closed position and the opening is fully opened, the sliding door A is slid from the open (half open) of FIG. In the case of B, the sliding operation is performed from the opening (half-opening) of FIG. Then, when the sliding door A is slid to the front (midway) of the closed position, the left engaging pin 9 hits the inside of the hook portion 50 of the latch 5 on the slider 2A side as shown in FIG. The latch 5 is rotated counterclockwise with the shaft 8 as a fulcrum due to the stress, and the convex portions 52 are unlocked from the locking grooves 14b and 19b and fitted into the linear grooves 14a and 19a. As shown in (a), the engaging pin 9 is switched to the retracted posture constrained by the hook portion 50. Then, the slider 2A is pulled to the slider 2B side by the urging force of the urging means 3 together with the latch 5, and reaches the closed position. In this case, the upper and lower protrusions 22 of the slider 2A are guided along the upper and lower guide grooves 12b and 16b, and the upper and lower convex portions 52 of the latch 5 are guided along the upper and lower linear grooves 14a and 19a. The sliding door B is also switched to the closed position in the same manner as the sliding door A. Further, in this embodiment, when the sliding doors A and B are slid by the urging force of the urging means 3 described above, the sliding doors A and B are slid gently under the braking force of the braking means 4 described above.

(2) In FIG. 4, when the sliding doors A and B are switched to the open position and the opening is fully closed, the sliding door A is open (half-open), or left from the closed position (b). That is, sliding operation is performed in the opening direction, and sliding door B is operated to slide to the right side, that is, in the opening direction from the closed position (a) of the same (a) or the closed position of (b). Then, when the sliding door A is slid to a position before (midway) the open position, the right engaging pin 9 hits the inside of the hook portion 50 of the latch 5 on the slider 2B side as shown in FIG. The latch 5 is rotated clockwise with the shaft 8 as a fulcrum due to the stress, and the projections 52 are unlocked from the locking grooves 14b and 19b and fitted into the linear grooves 14a and 19a. As shown in b), the engaging pin 9 is switched to the retracted posture constrained by the hook portion 50. Then, the slider 2B is pulled to the slider 2A side by the urging force of the urging means 3 together with the latch 5, and reaches the open position. In this case, the upper and lower protrusions 32 of the slider 2B are guided along the upper and lower guide grooves 12b and 16b, and the upper and lower convex portions 52 of the latch 5 are guided along the upper and lower linear grooves 14a and 19a. The sliding door B is switched to the open position in the same manner as the sliding door A. Further, in this embodiment, when the sliding doors A and B are slid by the urging force of the urging means 3 described above, the sliding doors A and B are slid gently under the braking force of the braking means 4 described above.

The present onset Ming are those that can be changed as appropriate with the exception of the requirements specified in claims. In addition, the sliding assist mechanism and the pull-in unit of the present invention are not particularly limited in application. For example, if the moving body is a drawer or a tray, the push-in position has the same meaning as the closed position in the above form, and the pull-out position Has the same meaning as the open position of the above form.

1 ... Case (15 is cover)
2A ... Slider (22 is a protrusion, 26 is a shaft hole, 25 is a locking shaft, 27 is a holding portion)
3 ... biasing means 4 ... braking means (40 is a cylinder, 41 is a piston rod)
5 ... Latch (50 is a hook part, 51 is an arm part, 52 is a convex part, 53 is a shaft hole)
6, 6A ... Retraction unit 8 ... Shaft 9 ... Engagement pin (operation member)
12b, 16b ... guide groove 14 ... guide groove (14a is a straight groove, 14b is a locking groove)
60 ... rack (65 is a protrusion, 64 is a support plate, 65 is a tooth, and 67 is a locking shaft)
71 ... Slider (74 is an engaging recess, 77 is a locking shaft, and 78 and 79 are projections)
AC ... Sliding door (moving body)

Claims (10)

In the sliding assist mechanism that assists in the operation of switching the moving body from the first position on the main body side to the second position or from the second position to the first position,
A case attached to the main body side, a first moving member and a second moving member that are slidably disposed in the case, respectively, and pivotally supported by the moving members, and a corresponding part on the case side A pair of latches that are releasably locked, and a biasing means that is provided between the two moving members and biases the latch support portions of the respective moving members toward each other,
When the movable body is switched from the second position to the middle of the first position or from the first position to the middle of the second position, the latching of the one latch is released by an operating member attached to the movable body. And a sliding assist mechanism that pulls the actuating member together with the latch to the other latch side to the first position or the second position with an approach drive via the moving member and biasing means.   The sliding assist mechanism according to claim 1, wherein the first moving member and the second moving member are configured by a pair of sliders that are separated from each other.   2. The sliding assist mechanism according to claim 1, wherein each of the first moving member and the second moving member is configured by a slider having a rack and a rotating gear meshing with the rack.   The sliding assist mechanism according to claim 1, wherein the pull-in unit includes a braking unit that brakes sliding of each of the moving members.   The sliding assist mechanism according to claim 4, wherein the braking means is a piston damper or a rotary damper.   The sliding assist mechanism according to claim 3, wherein the rotating gear constitutes a braking rotary damper.   The said retracting unit arrange | positions the said 1st moving member and the 2nd moving member with respect to the said case, the said urging | biasing means, and 2 sets of said latches of a pair respectively. Sliding assist mechanism.   The sliding assist mechanism according to claim 1, wherein the movable body is a sliding door, the first position is a closed position of the sliding door, and the second position is an open position where the sliding door is fully opened.   The sliding assist mechanism according to claim 7, wherein the movable body is a sliding door, and the retracting unit is attached to an upper side of the main body and / or a lower side of the frame where the sliding door is arranged. .   The pull-in unit according to any one of claims 1 to 7, which is used for a sliding assist mechanism that assists in an operation of switching the moving body from the first position to the second position or from the second position to the first position on the main body side.

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