JP2009167730A - Drawing mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate a malfunction at the time of retention of an energization force accumulation state. <P>SOLUTION: A drawing body A consists of a case 1, a slider 2, an engagement member 3, and an energizing means S. The case 1 has a dead air space 15 which can receive a striker 4, and the slider 2 is stored in the case 1 so that it can move. The engagement member 3 having a projection 34 is incorporated into the slider so that it can slide in the direction nearly orthogonal to the movement direction of the slider with respect to the slider. The energizing means S accumulates an energization force in the process of movement of the slider. The case 1 is provided with a guide groove 16 which consists of a standby retaining part 16a and a guide part 16b. The standby retaining part 16a engages the projection 34, and retains an energizing means in an energization-force accumulation state. The guide part 16b allows sliding of the projection, and makes the engagement member 3 movable with the slider. Since the striker 4 is brought into contact with the enagagement member 3 which slides in the movement direction of the slider and in the nearly orthogonal direction because of this, it switches the projection 34 between an energization-force release state and an energization-force accumulation state. In the energization-force release state, the engagement of the projection 34 is released from the standby retaining part 16a, and it is moved to the guide part 16b. In the energization-force accumulation state, the projection 34 is moved from the guide part 16b, and is engaged with the standby retaining part 16a. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention includes a striker, a pull-in main body, and a biasing means for accumulating a biasing force in the moving process of the movable body among the pull-in mechanisms that assist the moving operation of the movable body with respect to the fixed body, and the striker is engaged with the pull-in main body. And a retracting mechanism in which the movable body is retracted by the urging force accumulated in the urging means.

  FIG. 9 shows the structure disclosed in Patent Document 1. Reference numeral 21 denotes a pull-in main body (sliding door closer) attached to the upper side of the fixed body side opening, and reference numeral 3 denotes a striker provided on the sliding door side which is a movable body. (Engagement pin). The retractable body 21 includes a case 22, a hook body 36, a biasing spring 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 (from the linear groove portion 32 and the rotating groove portion 33 bent at one end side of the linear groove portion 32. Formed). The hook body 36 forms a holding recess 46 that engages and disengages the striker 3 and engagement protrusions 44 and 45 that fit into the sliding groove 31. The urging spring 35 urges the hook body 36 toward the other end of the sliding groove 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 striker 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 retracting mechanism, the striker 3 is moved toward the retracting main body 21 on the main body side as shown in FIG. Then, the striker 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. . 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 straight 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 spring 35 in a state where the striker 3 is engaged, thereby completing the drawing. From this state, the striker 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 spring 35. Further, when the sliding door is opened, the hook body 36 is moved from the linear groove portion 32 to the rotating groove portion 33 by the return operation of the striker 3 via the automatic return mechanism 4, and the hook body 36 is moved to the same position (a). To the standby position. Such a pull-in structure is not limited to a sliding door, and can be similarly applied to a drawer.
JP 2005-290769 A

  In the above retracting mechanism, when the sliding door or the drawer body is closed, it is automatically switched from the middle to the closed position by the urging force of the urging means, so that the occurrence of the incompletely closed state of the sliding door can be reliably eliminated. . However, in this retracting mechanism, the urging spring is provided so that the hook body is rotated from the rotating groove portion to the linear groove portion of the sliding groove portion. Before the transition to the rotating groove, the hook body and the striker are disengaged, and the hook body is likely to malfunction due to movement in the retracting direction by the stored urging force. When the movable body is a drawer, there is a risk that the striker and the pull-in main body may be displaced relative to each other due to a change in the loading amount or the storage load of the drawer and may not operate normally.

  The present invention is suitable as a pull-in mechanism that pulls the movable body with an urging force from the middle, in order to prevent rebound when the movable body is pushed in vigorously or to prevent the incomplete pushing state of the movable body. The object is to reliably eliminate the malfunction as described above. Another object is to maintain the good operation by absorbing the change even if the relative position of the striker and the retractable body changes, thereby preventing the occurrence of malfunction and improving the reliability.

  In order to achieve the above-described object, the present invention provides a retractable body provided on one of a fixed body and a movable body supported to be movable on the fixed body, and a predetermined movement position of the movable body provided on the other. In the retractable mechanism of the movable body comprising a striker that is detachably engaged with a part of the retractable body, the retractable body moves to the case having a space that can receive the striker, and the case. A slidably housed slider, a locking member that has a protrusion and is slidably incorporated in the slider in a direction substantially perpendicular to the moving direction of the slider, and a biasing force in the moving process of the slider The case includes a biasing means for accumulating, and the case includes a standby holding portion for latching the protrusion and holding the biasing means in a biasing force accumulation state, and allowing the protrusion to slide and the locking member. The And a guide groove comprising a guide portion for the movable with serial slider. Then, when the locking member slides in a direction substantially perpendicular to the moving direction of the slider due to the striker contact, the projection is released from the standby holding portion and moved to the guide portion. The urging force release state is switched to the urging force accumulation state shifted from the guide portion and locked to the standby holding portion.

  In the present invention described above, the fixed body includes a drawer body main body and a sliding door frame main body. The movable body is a drawer body, a sliding door, or the like, and may be in a relationship of reciprocating with respect to the fixed body. The retractable body and the striker are provided corresponding to the fixed body and the movable body, and at a predetermined movement position of the movable body with respect to the fixed body (for example, when the movable body is a drawer, the drawer body is being pushed in). The striker may engage with the engaging member constituting the pull-in main body so that the movable body can be retracted by the biasing force accumulated in the biasing means. Further, in the urging force accumulation state, the urging means accumulates the urging force to the maximum through the movement of the slider, and the projection is held in the standby holding portion of the guide groove to hold the state. In the urging force released state, the protrusion is transferred to the guide portion of the guide groove, and the urging means releases the urging force through the movement of the slider.

The present invention as described above is more preferably embodied as follows.
(1) In Claim 1, the locking member includes an inclined surface portion and a flange portion that abuts against the striker, and the striker is attached to the inclined surface portion from an urging force accumulation state in which the protrusion is engaged with the standby holding portion. With the sliding of the locking member due to the contact, the projection is unlocked to move to the guide portion, the slope portion is released from the space, and the collar portion is contacted and engaged with the striker. The locking member, the slider, and the striker can be retracted as a unit (claim 2).
(2) In Claim 1, the locking member includes a slope portion and a flange portion that contacts the striker, and the striker contacts the flange portion from a biased force release state in which the protrusion is transferred to the guide portion. By moving the locking member, the slider, and the striker as a unit through engagement, the biasing force is switched to the accumulating force accumulating state with the sliding of the locking member, and the slope portion is returned to the space. In this configuration, the eaves part is allowed to escape from the empty space (to allow a single movement of the striker) (Claim 3).
(3) The moving direction of the slider according to any one of claims 1 to 3, wherein the locking member is provided on the protrusion and the slider, and is provided with a regulating means including a linear groove portion fitted to the protrusion. It is the structure slid to the direction substantially orthogonal to (Claim 4).
(4) In any one of claims 1 to 4, the striker is supported so as to be able to displace a projecting dimension against an urging force against the holding member, and / or is mounted on the fixed body or the movable body. In the attached state, the relative position with respect to the pull-in main body can be adjusted by being supported so as to be movable by a predetermined dimension via the holding member (Claim 5).

  In the invention of claim 1, when the protrusion moves from the guide portion of the guide groove to the standby holding portion and locks while accumulating the urging force in the urging means by the relative movement of the striker and the slider from the urging force released state, The locking member slides in a direction substantially perpendicular to the moving direction of the slider in conjunction with the movement of the protrusion, and maintains the biasing force accumulation state (standby position). This urging force accumulation state is, for example, a direction substantially perpendicular to the moving direction of the slider (which is the same as the moving direction of the striker), that is, the direction in which the locking member is not moved carelessly. Since it is not unlocked unless it is moved, malfunctions are unlikely to occur, and malfunctions such as those listed as problems can be reliably prevented, thereby improving quality and reliability.

  The invention of claim 2 specifies the operation from the accumulation state of the urging force to the start of the pull-in, and requires a slider and a locking member as compared with Patent Document 1, etc., but the locking member is a protrusion. In addition, it is possible to hold the urging force accumulating body more reliably only by providing the slope portion and the collar portion. Further, the invention of claim 3 specifies the operation from the urging force release state to the accumulation of the urging force, and requires a slider and a locking member as compared with Patent Document 1 or the like. The member can be reliably switched from the urging force release state to the urging force accumulation state only by providing the slope portion and the flange portion in addition to the protrusion.

  According to the invention of claim 4, the locking member is smoothly slid through the restricting means so that the switching between the urging force accumulating body and the urging force released state is maintained well.

  In the fifth aspect of the invention, for example, if the movable body is a drawer, the relative position between the striker and the pull-in main body is displaced or changed due to a change in the load of an article stored in the drawer. However, since the striker is supported so that the projecting dimension can be changed or the predetermined dimension can be moved via the holding member, the striker can be adjusted to the optimum position by changing the position within the allowable movement range.

  Embodiments of the present invention will be described with reference to the drawings. 1 is an exploded structural view of the retractable body, FIGS. 2 and 3 show the structure and operating characteristics of the retracted body, FIGS. 4 and 5 show the holding structure and operating characteristics of the striker, and FIGS. Shows a usage example. In each figure, a part of the drawing is omitted. In the following description, the outline, the pull-in main body, the striker, the usage example, and the operation will be described in detail.

As illustrated in FIG. 6, the pull-out mechanism of the (outline) form is a case where the drawer 8 is used when the drawer body 8 is put in and out of the storage body 9, and the drawer that is movably supported by the storage body 9. A striker that is removably engaged with a pull-in main body A provided on one of the bodies 8 and a locking member 3 provided on the other and constituting the pull-in main body A at a predetermined movement position of the pull-out body 8. The striker 4 constituting the assembly B and a coil spring S as an urging means capable of accumulating urging force in the process of moving the drawer body 8, and the locking member 3 of the pull-in main body A and the striker 4 include The drawer body 8 is pulled in by the biasing force accumulated in the coil spring S in the engaged or operatively connected state.

(Retraction main body) As shown in FIGS. 1 to 4, the retraction main body A is arranged in a substantially rectangular case 1 having a space 15 capable of receiving the striker 4 and movably disposed in the case 1. The slider 2 has a projection 34, the locking member 3 is slidably incorporated in the slider 2 in a direction substantially perpendicular to the moving direction of the slider, and the biasing force is accumulated in the moving process of the slider 2. The coil spring S described above and a rotary damper 5 that brakes the movement of the slider 2 are provided. Among these, the damper 5 has a case 5a, a shaft that is braked with hydraulic oil or the like in the case, and a gear 5b that is attached to the shaft. The dampers 5 can be omitted or a plurality of dampers can be used.

  The case 1 is elongated in the front-rear direction, and the inner space is roughly partitioned by the front face 10 and the rear face 11, the upper and lower faces 12, 13, and the one end face 14, and the other end face is opened. It has a void 15 having a substantially U-shaped cross section for receiving the striker 4. That is, the void 15 is located approximately in the middle of the front surface 10 and extends from one end surface 14 to the front of the other end surface. Moreover, the entrance / exit part 15a which is the one end surface 14 side among the empty spaces 15 is formed wider than that of the back side part, that is, the vertical interval is larger. A U-shaped facing surface is cut out from the substantially middle part in the front-rear direction to communicate with the upper and lower spaces of the case 1 from the space 15 through the notch 15b. For this reason, the inside of the case 1 is a space in which the cutout portion 15b side is vertically connected (hereinafter referred to as a cutout portion side space of the case 1), and the one end surface 14 side of the cutout portion 15 is above and below the space (hereinafter referred to as a space 15). , The upper and lower spaces of the case 1).

  On the front surface 10 and the back surface 11, a guide groove 16 above the space 15 and a guide groove 17 below the space 15 are provided so as to face each other. The guide groove 16 is positioned above the notch 15b, and holds a projection 34 of a locking member 3 to be described later to hold the coil spring S in a biased force accumulation state. It comprises a lateral groove-shaped guide portion 16b that extends from the standby holding portion 16a to the other end surface side of the case and allows the protrusion 34 to slide and allows the locking member 3 to move together with the slider 2. The guide groove 17 is positioned below the notch 15 b and extends in parallel with the space 15. Moreover, the back surface 11 has the lower protrusion part 11a in several places, and the attachment hole 18 for dampers is provided in the place containing each lower protrusion part 11a. The damper 5 is attached to the attachment hole 18 in a state where the case 5a is engaged and fixed. In this example, the damper 5 is mounted in one mounting hole 18 among the plurality of mounting holes 18, but when increasing the braking force, the damper 5 is mounted in the other mounting holes 18.

  The upper surface 12 is opened 12a from substantially the middle to the front of the one end surface 14, and a coil spring S described later is exposed. As shown in FIG. 2B, the lower surface 13 is also opened from approximately the middle to the front of the one end surface 14 to expose a rack portion 28 of the slider 2 to be described later and a damper-side gear 5b engaged with the rack portion 28. . Reference numeral 19 denotes a mounting portion with a hole protruding from the upper surface 12 side. Reference numeral 19a denotes a mounting hole provided on the one end face 14 side.

  The slider 2 has a generally U-shape as a whole, and includes a base portion 20, a connecting portion 24 and a shaft portion 25 that are protruded upward on one side surface of the base portion 20, and a connecting portion 26 and a rack portion that protrude downward. 27. The base 20 is formed in a case shape having a lower opening, and the inside 21 is viewed from a notch 22 in which a part of the front is opened from between the upper connecting portion 24 and the lower connecting portion 26 on one side. On the front surface and the back surface, a straight groove portion 23 above the notch portion 22 and a convex portion 20a on the lower side are provided so as to face each other. Each linear groove portion 23 is an elongated vertical groove, and constitutes a regulating means 7 that controls sliding of the locking member 3 with a projection 34 of the locking member 3 described later. Each convex portion 20a is fitted into the corresponding case side guide groove 17. The shaft portion 25 protrudes from the distal end surface of the connecting portion 24 and supports the coil spring S so as to be freely expandable and contractible. The rack part 27 protrudes along the connection part 26, and the convex part 27a which fits the case side guide groove 17 like the convex part 20a, and the tooth which is provided along the lower surface and meshes with the damper side gear 5b. Part 28.

  The locking member 3 has a substantially rectangular plate shape that is slidably disposed in the inside 21 of the slider-side base portion, and is positioned in front of the slope portion 33 provided through the slit 31 on one side, and the slope portion 33. And the collar part 32 which divides the entrance 31a of the slit 33, and the back opening 31b of the slit 33, and the protrusion 34 which protrudes in the front and the back, and fits into the above-mentioned corresponding linear groove part 23 is provided. Yes. Both the flange portion 32 and the slope portion 33 are locations that come into contact with and engage with the striker 4 that is moved along the case-side space 15. That is, when the striker 4 comes into contact with and engages from the biasing force accumulation state as shown in FIG. As shown in FIG. 8, the collar portion 32 allows the slider 2 to move in the direction of accumulating the urging force of the coil spring S together with the locking member 3 when the striker 4 comes into contact with and engages with the back side from the released urging force state. . This detail will be described later.

  The slider 2, the locking member 3, and the coil spring S described above are assembled into the case 1 in the following procedure. First, the slider 2 supports the coil spring S on the shaft portion 25, and the case 1 is opened from the opening on the other end surface facing the case 1 with respect to the case 1 in a state where the locking member 3 is inserted into the base portion 21. The convex portions 20a and 20a on both sides are fitted into the corresponding guide grooves 17 and 17, respectively. In this case, the locking member 3 is retrofitted with a protrusion forming member such as a shaft that forms the protrusion 34. Specifically, after the slider 2 is disposed in the case 1 with the locking member 3 inserted into the base portion 21, for example, the protrusion forming member (shaft) is one of the case front side guide groove 16 and the base portion 20. The slider 2 and the locking member 3 are inserted into the straight groove portion 23, the projection through-hole of the locking member 3, the other linear groove portion 23 of the base portion 20, and the case back side guide groove 16, so that the slider 2 and the locking member 3 are protruding projection members (that is, the projection 34). ) To the case 1 via Thereby, the drawing-in main body A is completed.

(Striker) As shown in FIGS. 4 and 5, the striker 4 is configured as a striker assembly B together with the holding member 4 and the base 43, and resists the urging force of the urging spring 41 against the holding member 42. Thus, the protrusion dimension is supported so as to be displaceable, and the holding member 42 is supported so as to be movable by a predetermined dimension with respect to the base 43, so that the relative position with respect to the pull-in main body A can be adjusted.

  Among these, the striker 4 is a steel material, and protrudes integrally with the support portion 40. The support part 40 has the latching claw 40a provided in both side surfaces, and the hole part 40b which formed the opposite side to the side which protrudes the striker 4 in the concave shape. The holding member 42 is generally T-shaped, has a holding hole in which the support portion 40 is slidably disposed, and has guide holes 42 a and convex portions 42 b provided on both side surfaces. The guide holes 42a on both sides extend in the front-rear direction, and when the support portion 40 is inserted into the holding hole of the holding member 42 in a state where the urging spring 41 is disposed in the hole portion 40b, the guide holes 42a are fitted with the locking claws 40a. Thus, the support portion 40 is slidably retained. The convex portions 42b are provided on the front side and above and below the guide hole 42a.

  The base 43 integrally includes a plate portion 44 and an overhang portion 46 provided on one side of the plate portion 44. A holding space 47 is defined between the plate portion 44 and the overhanging portion 46, and the back side of the holding space 47 is closed by a side wall 48. The plate portion 44 and the overhanging portion 46 are provided with restriction grooves 44a and 46b extending vertically, and are provided with a pair of recessed portions 45 and recessed portions 46a extending left and right. The recess 45 and the recess 46a communicate with the regulation grooves 44a and 46b, and can be guided to the regulation grooves 44a and 46b in a state where the projections 42b are fitted. A long hole 49 is provided in the side wall 48. When the holding member 42 is attached to the above-described base 43 and the striker 4 is assembled, when the convex portions 42 b are fitted into the concave portions 45 and 46 a and moved into the holding space 47, the striker 4 is elongated. The convex portions 42b are fitted into the restricting grooves 44a and 46b from the concave portions 45 and 46a. As a result, the holding member 42 supports the striker 4 so that the projecting dimension can be changed against the biasing force, and the projections 42b are slidably fitted into the regulation grooves 44a and 46b with respect to the base 43. In this state, the striker 4 can move up and down by a distance corresponding to the hole size with respect to the long hole 49. Reference numerals 44 b and 44 c are mounting holes attached to the base 43.

  The striker 4 of the present invention is a fixed type used alone, and is supported relative to the retracting body A by supporting the holding member 42 so that the protruding dimension can be displaced against the urging force of the urging spring 41. One-way adjustment type that allows the target position to be adjusted, and further, the holding member 42 with respect to the base 42 can be moved by a predetermined dimension when mounted on a fixed body such as the storage body 9 or a movable body such as the drawer 8 The two-way adjustable type that can be adjusted in the relative position with respect to the pull-in main body A by being supported is selected according to the required quality.

(Usage example) FIG. 6 shows an example in which the above-described retracting mechanism is applied to retracting the drawer body 8. In this arrangement, the lead-in main body A is attached to the inner side surface of the storage main body 9, and the striker assembly B is attached to the rear end surface 8 b of the drawer body 8. In this case, the lead-in main body A is fixed by using a screw or the like inserted into the case-side mounting portion 19 or the mounting hole 19a. The striker assembly B is fixed using screws or the like inserted into the mounting holes 44b and 44c described above. At this time, the striker 4 corresponds to the space 15 of the retracting body A, and the drawer 8 It is positioned so as to protrude from the side surface 8a. As another arrangement, it is also possible to attach the pull-in main body A to the drawer body 8 side and correspondingly attach the striker assembly B to the storage main body 9 side. In addition, the pull-in main body A and the striker assembly B may be pulled in using two sets of movable bodies. In such a case, the other of the pull-out bodies 8 is symmetrical with respect to the above-described form.

(Operation) The operation of the above retracting mechanism will be described in detail with reference to FIGS. 2 and 3, and FIGS. 7 and 8. 7 and 8 show the main operation assuming the use example of FIG. 6 and are schematically shown in order to clarify the relationship between the members.

(1) First, the operation of the pull-in main body A alone will be clarified. In this assembly A, the coil spring S is shown in FIG. 2 (this point is not shown in FIG. 2, but it is apparent if the shaft portion 25 is moved leftward from FIG. 6). The urging force accumulation state where the urging force is accumulated as described above and the urging force released state where the coil spring S releases the urging force as shown in FIG. 3 (see FIG. 6) are switched. In this retracting mechanism, the coil spring S accumulates the urging force to the maximum through the movement of the slider 2 (the shaft portion 25) in the urging force accumulation state. The locking member 3 is locked to the standby holding portion 16a of the guide groove 16 in a state where the projection 34 is shifted to the lower side of the base side straight groove portion 23, and holds the urging force accumulation state. Then, when the projection 34 is released from the standby holding portion 16a and released to the guide portion 16b from this accumulated biasing force state, the slider 2 and the locking member 3 are integrated into the void 15 by the biasing force of the coil spring S. And moved along the guide portion 16b. The unlocking is performed with the ascending of the locking member 3 due to the contact of the striker assembly B (the striker 4) with the slope portion 33 as will be described later. When the lock is released, the striker assembly B moves in conjunction with the slider 2 while maintaining the contact engagement of the striker 4 with the flange portion 32, that is, automatically pulled in while being braked by the damper 5. Become. In this retracting mechanism, when the biasing force is released, the coil spring S releases the biasing force or minimizes the biasing force through the movement of the slider 2 as shown in FIG. As shown in FIG. 3, the locking member 3 is transferred to the guide portion 16 b of the guide groove 16 in a state in which the projection 34 is transferred to the upper side of the base side straight groove portion 23.

(2) FIG. 7A shows a state when the striker 4 enters the case-side space 15 of the retractable body A. FIG. In this retracting mechanism, when the mutual positional relationship changes, the striker assembly B can correct and absorb the change. In the use example of FIG. 6 described above, for example, the striker 4 of the striker assembly B and the empty space 15 of the retracting main body A (the locking member protruding therethrough) due to changes in the loading amount and the storage load of the drawer 8 3, the relative position with respect to the slope portion 33 and the flange portion 34) is changed, and the problem that the striker 4 and the slope portion 33 are not normally brought into contact with each other is solved. That is, in this drawer mechanism, when the striker assembly B is approached to the pull-in main body A, (a) the striker 4 is received by the wide entrance / exit portion 15a of the void 15 of the case 1 and the narrow void 15 It is moved while being centered. (A) The striker 4 varies the protruding dimension against the urging force of the urging spring 41 against the holding member 42. (C) As described above, the striker 4 is supported in a state where the convex portions 42b of the holding member 42 are fitted in the base-side regulating grooves 44a and 46b, and is vertically moved by a distance corresponding to the hole size with respect to the long hole 49. Move freely. In this retracting mechanism, the striker 4 is adjusted to the optimum position by changing the position by their synergistic action, thereby efficiently and reliably absorbing the change in the relative position and eliminating the malfunction.

(3) FIG. 7 shows a retracting operation of a movable body such as a drawer when the striker assembly B is engaged with the retracting body A and retracted by the urging force. That is, in this retracting mechanism, when the striker 4 moves from the accelerating force accumulation state where the projection 34 is locked to the standby holding portion 16a as shown in FIGS. 7 (a) to 7 (b), the striker 4 It enters the entrance / exit 31 a of the locking member side slit and comes into contact with the slope portion 33. Then, the inclined surface portion 33 receives upward stress from the striker 4 and the locking member 3 is lifted through the guide action of the restricting means 7, and as a result, both the protrusion 34 and the flange portion 32 are lifted, and the protrusion 34 is released from the locking state and moves to the guide portion 16b. As a result, in this retracting mechanism, the inclined surface portion 33 is released from the space 15 and the flange portion 32 is in contact with and engaged with the striker 4, as shown in FIG. 7C due to the urging force accumulated in the coil spring S. The locking member 3, the slider 2, and the striker 4 are pulled together.

(4) FIG. 8 shows an operation when the movable body such as the above-described drawer body 8 is moved again from the retracted state of FIG. That is, in this retracting mechanism, in the process in which the striker assembly B (the striker 4) is moved again away from the retracting body A as shown in FIG. First, the striker 4 comes into contact with and engages with the back surface of the collar portion 32. Then, when the striker 4 is moved as a unit with the locking member 3 and the slider 2 as shown in FIG. 8B while maintaining the abutting engagement with the flange portion 32, the projection 34 is lowered by one step from the guide portion 16b. It moves to the holding | maintenance part 16a and is latched. In other words, in this retracting mechanism, the slider 2 is also moved in the same direction in conjunction with the striker 4 being moved from the position shown in FIG. 7C to the position shown in FIG. Therefore, the urging force is accumulated in the coil spring S, and when the striker 4 is further moved in the same direction from FIG. 8B, the collar portion 32 is released from the void 15 and the slope portion 33 is again void. In the state returned to 15, the projection 34 is locked to the standby holding portion 16a.

  The pull-in mechanism of the present invention can be changed as appropriate except for the requirements specified in claim 1. In addition, the retracting mechanism of the present invention is not particularly limited in application. For example, if the movable body is a sliding door as in Patent Document 1, the pulling direction or the pulling direction is replaced with the closing direction or the opening direction of the sliding door. become.

It is a disassembled perspective view which shows the drawing-in main body which comprises the drawing-in mechanism of invention form. The said pull-in main body is shown by the urging | biasing force accumulation | storage state, (a) is a top view, (b) is a front view, (c) is a rear view. The said pull-in main body is shown in the urging | biasing force release state, (a) is a top view, (b) is a front view, (c) is a rear view. It is a disassembled perspective view which shows the structure of the said striker. The detail of the said striker is shown, (a) is a front view, (b) is a rear view, (c) is a left side view, (d) is a right side view. The example of arrangement | positioning of the said drawing main body and a striker is shown, (a) is the schematic diagram seen from the top, (b) is the schematic diagram which looked at the state of (a) from the side. (A) is a schematic diagram showing the relationship between the striker and the space of the lead-in main body, (b) is a schematic diagram showing the operation when the protrusion is unlocked, (c) It is a schematic diagram which shows drawing-in. Fig. 4 shows the accumulation of the urging force of the retracting mechanism, (a) is a schematic diagram showing the final stage of the urging force accumulation, (b) is a schematic diagram showing a state when the accumulation of the urging force is completed, and (c) is a drawing of the striker from the retracting body. It is a schematic diagram which shows the state which is moving to the direction which leaves | separates. It is a reference figure for demonstrating the drawing mechanism of patent document 1. FIG.

Explanation of symbols

A ... Retractable body B ... Striker assembly (40 is a support part, 42 is a holding member, 43 is a base)
1 ... Case (10 is front, 11 is back, 12 and 13 are top and bottom, 17 is guide groove)
2 ... Slider (20 is base, 25 is shaft, 27 is rack, 28 is tooth)
3 ... locking member (30 is one end, 32 is the other end, 31a is a connecting shaft, 31b is a shaft)
4 ... Striker 5 ... Damper (5a is the case, 5b is the gear)
7. Control means (23 is a straight groove, 34 is a protrusion)
8 ... Drawer (movable body)
9. Storage body (fixed body)
15 ... Vacant space (15a is the entrance / exit part)
16 ... Guide groove (16a is a standby holding part, 16b is a guide part)
43 ... biasing spring S ... coil spring (biasing means)

Claims (5)

A retractable body provided in one of the fixed body and the movable body supported by the fixed body so as to be movable, and a part of the retractable body provided in the other at a predetermined movement position of the movable body. In the retractable mechanism of the movable body consisting of strikers that engage with each other,
The retractable body has a case having a space capable of receiving the striker, a slider movably accommodated in the case, a projection, and a direction substantially perpendicular to the slider moving direction with respect to the slider A slidably incorporated locking member and an urging means for accumulating an urging force during the movement of the slider,
The case includes a standby holding portion that locks the protrusion and holds the biasing means in a biasing force accumulation state, and a guide that allows the protrusion to slide and allows the locking member to move together with the slider. It has a guide groove consisting of parts,
When the locking member is slid in a direction substantially perpendicular to the moving direction of the slider due to contact of the striker, the projection is released from the standby holding portion and moved to the guide portion. A pull-in mechanism that switches between a force release state and an urging force accumulation state that is shifted from the guide portion and locked to the standby holding portion.   The locking member includes a slope portion and a flange portion that comes into contact with the striker, and from a biasing force accumulation state in which the protrusion is locked to the standby holding portion, the striker comes into contact with the slope portion by contact of the striker. The projection is unlocked with sliding to move to the guide portion, and the slope portion is released from the space, and the hook portion is brought into contact with and engaged with the striker, and the locking member, the slider The retraction mechanism according to claim 1, wherein the striker can be retracted as a unit.   The locking member includes an inclined surface portion and a flange portion that contacts the striker, and the locking member is released from a biasing force released state in which the protrusion is transferred to the guide portion through the contact engagement of the striker with the flange portion. The member, the slider, and the striker are moved together to switch to the urging force accumulating state with the sliding of the locking member, and the slope portion is returned to the space, and the flange portion is moved to the space. The retracting mechanism according to claim 1, wherein the retracting mechanism is escaped from.   The locking member is slid in a direction substantially orthogonal to the moving direction of the slider via a restricting means that is provided on the protrusion and the slider and includes a linear groove portion that is fitted to the protrusion. The retracting mechanism according to any one of claims 1 to 3.   The striker is supported so as to be able to displace a protruding dimension against the holding member against an urging force, and / or is attached to the fixed body or the movable body with a predetermined dimension through the holding member. 5. The retracting mechanism according to claim 1, wherein a relative position with respect to the retracting main body is adjustable by being movably supported.

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