JP5606799B2 - Sliding door with sliding assist mechanism and nose - Google Patents

Description

  The present invention relates to a sliding assist mechanism that allows a sliding door to be switched from open to closed by an urging force accumulated in an urging means, or to switch from closed to open, and a sliding door with a nose that is pulled in by the mechanism. The target sliding assist mechanism is also called a sliding door closer.

  FIG. 22 shows the sliding assist mechanism of Patent Document 1. In this mechanism, the main body frame slidably arranges the sliding door, and an engagement protrusion (engagement pin) 9 that is an operating member is provided on the sliding door, and the main part of the sliding assist mechanism provided on the main body frame. The sliding door is pulled in via the engaging protrusion 9 by a certain pulling unit. The pull-in unit includes a case 1 attached to a main body frame, sliders 2A and 2B slidably arranged on the case 1, latches 5 and 5 supported rotatably via a shaft 8 with respect to each slider, It consists of means 3. The engaging projection 9 is provided on the upper end surface of the sliding door.

  Here, the case 1 is elongated and thin so as to be disposed along the guide groove of the main body frame. Each slider 2A, 2B has a convex portion 22 provided on the upper and lower surfaces, and each convex portion 22 is fitted into guide grooves 12b, 16b provided on the upper and lower surfaces of the case 1, and by these upper and lower guide means. It is slid while being guided. Each latch 5 has projections 52 provided on the upper and lower surfaces, and each projection 52 is fitted into guide grooves 14 and 19 provided on the upper and lower surfaces of the case 1 and is guided by the upper and lower guide means. While sliding. Each of the guide grooves 14 and 19 includes 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.

  In the above sliding assist mechanism, the latches 5 on both sides in FIG. 22A and the right latch 5 in FIG. 22B are in the standby posture. In this standby position, the upper and lower protrusions 52 are locked in the corresponding locking grooves 14b and 19b, and the position of the latch 5 is restricted against the biasing force accumulated in the biasing means 3 together with the slider 2A. When the sliding door at the left open position (not shown) is slid from the open state to the closing direction from the state (a), the engaging protrusion 9 hits the inner surface of the hook portion 50 of the latch 5 of the corresponding retracting unit, The latch 5 is rotated by the stress and switched from the standby posture to the retracted posture as shown on the left side of (b). In this retracted position, the upper and lower protrusions 52 enter the linear grooves 14a and 19a from the locking grooves 14b and 19b and are unlocked while the latch 5 restrains the engaging protrusion 9 in the hook portion. For this reason, the latch 5 and the slider 2 </ b> A are slid by the urging force accumulated in the urging means 3, and the sliding door is automatically switched to the closed position via the engagement protrusion 9. Further, when the engaging projection 9 is slid to the left side of the drawing together with the latch 5 by the opening operation of the sliding door from the closed position, the urging force is accumulated in the urging means 3 accordingly. When the sliding door is further moved in the opening direction, it is switched to the standby posture again.

JP 2008-144567 A

  For example, when the sliding door is closed, the sliding assist mechanism is automatically switched from the middle to the closed position by the biasing force, thereby improving the usability of the sliding door and eliminating the occurrence of the incomplete closed state of the sliding door. . Further, the above-mentioned retracting unit is constituted by left and right sides, that is, a pair of latches and sliders and urging means instead of the form of FIG. 22 (a), and further constituted by a single latch, slider and urging means. Since it is possible, for example, it is applicable also to the sliding door opened and closed along the horizontal groove by the side of a main body frame.

  By the way, in the case of a sliding door with a nose, as shown in FIGS. 22 (a) and 22 (b), the groove of the horizontal groove is used to fit the narrowed neck of the sliding door into the horizontal groove of the Kamoi constituting the main body frame. Even if the width is large, it is a seven-minute groove (21 mm), and the width dimension of the door neck 16 is also about 20 mm. For this reason, it is usually difficult to dispose the retracting unit on the nose side, and it is difficult to attach the actuating member to the nose side while maintaining the relationship with the retracting unit. From such a background, conventionally, the type such as the sliding assist mechanism is considered to be inapplicable to a sliding door with a nose, and a sliding door disclosed in Japanese Patent Application Laid-Open No. 2007-120142 is used as an alternative mechanism. A drive wire type that is drawn in by a roll-up wire is applied. However, in the drive wire type, the built-in structure on the sliding door side becomes complicated, and the sliding door itself has to be replaced. Japanese Patent Application Laid-Open No. 2008-144567 discloses a configuration in which the retracting unit is arranged on the nose of the sliding door. However, after removing a part of the nose, a concave portion for installation must be formed. It becomes complicated.

  The object of the present invention is to solve the above-mentioned problems, and to make it possible to easily apply a sliding assist mechanism comprising a retracting unit and an operating member to a sliding door with a nose, and to operate while maintaining simplification and appearance characteristics. It is to improve the characteristics.

  According to the first aspect of the present invention, as shown in the first and second embodiments, the case disposed in the lateral groove on the main body frame side, the slider slidably disposed in the case, and the slider are supported. A latch that can be switched between a standby posture for locking to the case-corresponding portion and a retracting posture for releasing the locking, and a pull-in unit comprising urging means, and a sliding door that is moved along the lateral groove of the main body frame. And a biasing force accumulated in the biasing means when the latch is switched from the standby position to the retracted position. A sliding assist mechanism that pulls the sliding door from open to closed or from closed to open, wherein the sliding door is fitted with a nose that fits into the lateral groove, and the operating member is the sliding door It is characterized in that attached to the end surface of Tokubi side (may be the end surface of the side projecting the Tokubi).

  In the present invention described above, the sliding door includes a shoji with door nose and a saddle with a nose. The main body frame is a rectangular frame that has a lateral groove that fits with the door neck of the sliding door and supports the sliding door slidably in an open position and a closed position. Usually, an opening having a size corresponding to a sliding door is defined by a lower cross or a sill, an upper cross or a duck, and vertical bars on both sides. The actuating member is attached to an end surface of the sliding door that protrudes from the door neck in a state of replacing the part of the door neck, and switches the latch between the retracted posture and the standby posture. In the standby posture, the latch is locked against the urging force accumulated in the urging means together with the slider. In the retracted position, the latch is released with the operating member restrained to the inside, and the sliding door is opened (including during opening) to closed or closed to open (including during opening) by the accumulated urging force. Move to the position.

The present invention as described above is more preferably embodied as described in claims 2-5. That is,
(A) the sliding door with forms a mounting portion by a predetermined length cut portion from Tokubi one end of the Tokubi, the actuating member that is attached to the attachment portion solid plate section and the fixed plate It is the structure which has the engaging protrusion which protrudes in a part and is engaged / disengaged by the said latch (Claim 2: 1st form).
(A) The operating member is integrated with the fixed plate portion, and stands up on one side along the longitudinal direction of the fixed plate portion, and is arranged so as to be continuous with one side of the door nose. (Claim 3: first and second embodiments).
(C) The fixed plate portion and the light shielding plate portion are formed in a substantially L-shaped longitudinal section, and the engaging protrusion is erected on the side away from the light shielding plate portion of the plate width of the fixed plate portion. (Claim 4: first and second embodiments).

(D) The actuating member is configured to have a nose forming portion that becomes a part of the nose of the sliding door (Claim 5: second embodiment).
(E) It has a receiving member arranged substantially linearly with the nose forming portion, and the nose of the sliding door is formed by the receiving member and the nose forming portion. Second form).
(F) A configuration having a light-shielding member disposed between the door nose forming portion of the operating member and the receiving member (Claim 7: second embodiment).
(G) The actuating member has a gap adjusting spacer used to prevent tilting or jumping when the sliding door moves (Claim 8: Modification 2 of FIG. 21).
(H) The spacer is connected to the attachment portion or another spacer integrated with the attachment portion so as to be cut, and is overlapped with the attachment portion or an extended portion extending from the attachment portion after cutting. (Claim 9: Modification 2 of FIG. 21).

(K) The main body frame has a gap adjusting spacer used in the lateral groove for preventing tilting or jumping when the sliding door is moved, and the spacer is integrated with the mounting portion or the mounting portion. Further, it is connected to other spacers so as to be capable of being cut, and is configured to overlap the attachment portion or an extension portion extending from the attachment portion after cutting (Claim 10: Modification 1 of FIGS. 19 and 20).
(E) The retracting unit can be relatively positioned through the light shielding plate portion guided along one outer surface of the case in a state where the retracting unit is mounted in a lateral groove of the main body frame. And a part of the case that is provided in the case and is guided by the engaging protrusion from an invitation portion that is narrower than the one end by a predetermined length (Aspect 11: No. 11). 1 and 2). The above-described positioning operation usually guides the light shielding plate portion along the wide gap where the case installation surface is wide.
(Sa) On the other hand, claim 12 specifies a sliding door with a nose that can be retracted by the above sliding assist mechanism.

  In the invention of claim 1, even if it is a sliding door with a door nose as exemplified in each form, like a sliding door without a conventional door nose, corresponding to the retracting unit disposed in the lateral groove of the main body frame, It can be implemented as a sliding door with a nose having an actuating member.

  In the invention of claim 2, as a sliding assist mechanism for a sliding door with a nose is provided as a sliding assist mechanism by providing an engaging projection on a fixing plate part mounted on a mounting part obtained by cutting a part of the nose. Instead of the drive wire type exemplified in Japanese Patent No. 120142, a sliding assist mechanism composed of the pull-in unit and the operating member can be easily employed. Further, for example, compared with the structure described in Japanese Patent Application Laid-Open No. 2008-144567, it is possible to easily retrofit an existing sliding door with a nose and improve the operating characteristics while maintaining the appearance characteristics of the sliding door with a nose.

  In a third aspect of the invention, the light guide plate has a guide-shading plate that is integrated with the fixed plate portion and is erected on one side along the longitudinal direction of the fixed plate portion so as to be continuous with one side of the door neck. Therefore, for example, the possibility that indoor light leaks outside from the cut portion of the nose can be eliminated, and the guiding action of claim 11 is also achieved.

  In the invention of claim 4, since the fixed plate portion and the light shielding plate portion are formed in a substantially L-shaped longitudinal section, positioning and fixing operations to the mounting portion are facilitated, and the actuating member is made of the plate width of the fixed plate portion. Among them, since it is erected on the side away from the light shielding plate portion, it is easy to come into contact with the latch, and it is possible to prevent the occurrence of rattling of the sliding door due to partial cutting of the door neck.

  In the invention of claim 5, since the actuating member has a door nose forming part which becomes a part of the door nose of the sliding door as in the second embodiment, the development as in claims 6 and 7 is enabled. That is, in the invention of claim 6, since it has a receiving member arranged substantially linearly with the nose forming portion, and the sliding door nose is formed by the receiving member and the nose forming portion, the conventional door Compared to the sliding door with a neck, the sliding door is made in a state where the end surface on the side of the nose is a flat surface as in the second embodiment, and the operation member and the receiving member are attached to the flat surface to form the door, The number of sliding door manufacturing steps can be reduced, and the sliding assist mechanism can be easily adopted. Furthermore, in the invention of claim 7, since the light shielding member is arranged between the door nose forming portion and the receiving member, it is possible to reliably solve the problem that the light in the room leaks outside.

  In the eighth aspect of the invention, since the actuating member has a gap adjusting space together with the mounting portion and the engaging protrusion, for example, when the relative gap between the lateral groove of the main body frame and the door nose of the sliding door becomes large. Alternatively, when the sliding door is deformed by continuous use and jumps up at the time of movement and cannot move smoothly, the gap adjustment can be accurately performed using the spacer.

  According to the ninth aspect of the present invention, it is possible to quickly adjust the gap by cutting the spacer with respect to the attachment portion or another spacer integrated with the attachment portion and overlapping the attachment portion or the extension portion extending from the attachment portion.

  In the invention of claim 10, since the main body frame has a gap adjusting spacer in the horizontal groove together with the retracting unit, for example, when the relative gap between the horizontal groove of the main body frame and the sliding door becomes large, or the sliding door However, when it is deformed by continuous use and jumps up at the time of movement and becomes unable to move smoothly, the gap can be adjusted accurately using the spacer. In this case, similarly to the above-mentioned claim 9, the spacer is cut with respect to the attachment portion or another spacer integrated with the attachment portion, and the gap adjustment is quickly performed by overlapping the attachment portion or the extension portion extending from the attachment portion. Can be implemented.

  In the eleventh aspect of the invention, the light shielding plate is traced along the side portion of the case constituting the retracting unit, or the engaging protrusion of the operating member is guided along the guiding portion provided in the case. By contacting, the positional accuracy of the sliding door side operation member with respect to the retracting unit is maintained, and the operation characteristics are kept good. In such a structure, since the retracting unit is mounted in the transverse groove of the main body frame, the width dimension is smaller than the groove width (usually around 20 mm), and how to maintain the positional accuracy between the actuating member and the latch. It has been devised.

  In invention of Claim 12, the advantage of the sliding assistance mechanism of each said claim can be provided as a sliding door with a nose.

It is a disassembled block diagram which shows the retracting unit and striker unit which comprise the sliding assistance mechanism of a 1st form. The upper case main body is removed from the pull-in unit, (a) is a plan view with the latch in a standby position, and (b) is a plan view with the latch in a retracted position. (A) is a schematic diagram showing a sliding door and a main body frame, (b) is a schematic diagram showing a configuration of part A of (a), (c) is a schematic diagram of a sliding door upper side showing part B of (a) , (d ) Is a view seen from the C direction of (c) . The case of the said drawing-in unit is shown, (a) is a top view of a case main body, (b) is a top view of a cover. The latch of the said drawing-in unit is shown, (a) is a top view, (b) is a right view, (c) is a front view. The slider of the said drawing-in unit is shown, (a) is a top view, (b) is a right view, (c) is a front view. (A) is a schematic diagram showing a state in which the sliding door is slidingly operated from the open to the closed direction, (b) is a schematic diagram showing a sliding assist mechanism in that state, and (c) is a part C of (b). It is an enlarged view. (A) is a schematic diagram showing a state immediately before the sliding door is automatically slid in the closing direction, (b) is a schematic diagram showing a sliding assist mechanism in that state, and (c) is an enlarged view of D part of (b). FIG. 4D is an enlarged view of a portion D in a state in which the sliding door is further slid in the closing direction from FIG. (A) is a schematic diagram which shows the state by which the sliding door was slid to the closed position, (b) is a schematic diagram which shows the sliding assistance mechanism in the state, (c) is the E section enlarged view of (b). . It shows in the state which attached the drawing-in unit of the 2nd form to the main part frame, (a) is a side view, (b) is a bottom view looked up from the bottom, (c) is a drawing-in unit drawing. The state which attached the striker unit of the 2nd form to the sliding door with the light-shielding member is shown, (a) is a top view, (b) is a side view, (c) is a block diagram of the sliding door upper side. It is a disassembled block diagram of the drawing-in unit of a 2nd form. The latch of a 2nd form is shown, (a) is a top view, (b) is the side view seen from the A arrow direction of (a), (c) is the front view seen from the B arrow direction of (a). . The slider of a 2nd form is shown, (a) is a top view, (b) is the side view seen from the C arrow direction of (a), (c) is the front view seen from the D arrow direction of (a). . It is a perspective view which shows the striker unit of a 2nd form. (A) is a schematic block diagram which shows the light shielding member of a 2nd form with a receiving member etc., (b) is a longitudinal cross-sectional view of the light shielding member. An application example of the sliding assist mechanism is shown in the standby position of the latch, (a) is a schematic state diagram of the upper part of the sliding door, (b) is a schematic state diagram of the sliding door viewed from above, and (c) is a diagram of (b). It is an enlarged view of a single pull-in unit. The above application example is shown in the retracted posture of the latch, (a) is a schematic state diagram of the upper side of the sliding door, (b) is a schematic state diagram of the sliding door viewed from above, and (c) is an enlarged view of the retracting unit of (b). is there. The modification 1 which attached the spacer for clearance adjustment to the main body frame with the drawing unit of the 2nd form is shown, (a) is a side view, (b) is a bottom view, and (c) is a spacer single article figure. The usage of the spacer is shown, (a) is a bottom view of the spacer, (b) is a schematic perspective view in a partially cut state, and (b) is a schematic perspective view in a state in which the spacers are overlapped. The modification 2 of the striker unit of a 2nd form is shown with the modification 2 attached to the sliding door with the light-shielding member and the receiving member, (a) is a top view, (b) is a side view, (c) is a schematic state figure of the sliding door upper side. (D) is a single item drawing of the striker unit. The sliding assistance mechanism of patent document 1 is shown, (a) is a block diagram of a drawing-in unit, (b) is the principal part operation | movement figure.

  Embodiments of the present invention will be described with reference to the drawings. In the drawing, the pull-in unit has a width dimension of about 20 mm, and details are simplified or omitted due to restrictions on drawing. In the following description, the mechanical features of each form, the retracting unit and striker unit of the first form shown in FIGS. 1 to 9 and their operation, the retracting unit and striker of the second form shown in FIGS. The unit and its operation, the first modification shown in FIGS. 19 and 20, and the second modification shown in FIG. 21 will be described in detail.

(Mechanical features of each embodiment) The sliding assist mechanism of interest is a sliding door 9A, 9B with a door nose 45, among the configurations in which the sliding doors 9A, 9B are slid and switched between an open position and a closed position as illustrated in FIG. It is devised to apply to. Here, the sliding doors 9 </ b> A and 9 </ b> B have a nose 45 that is raised one step on the upper end surface 46. The door 45 has a width of about 20 mm and is fitted to the groove width L of the lateral groove 43 on the main body frame side. The main body frame defines a rectangular opening by an upper duck 40 and a lower sill 41 and vertical trees 42 on both sides. A pair of lateral grooves 43 corresponding to the nose 45 of each sliding door 9A, 9B is formed in the head in parallel. In addition, in the following description, it will be clarified by an example in which the sliding assist mechanism is applied to the sliding door 9A. However, the sliding assist mechanism is similarly applied to the sliding door 9B. For this reason, it describes with the sliding door 9 with a 2nd form.

  That is, as shown in FIG. 1 to FIG. 3 or FIG. 10 to FIG. 12, this sliding assist mechanism is composed of a retracting unit 6 or 6 A and a striker unit 7 or 7 A as an operating member. The retracting unit 6 or 6A includes a case 1 disposed in the body frame side lateral groove 43, a slider 2 slidably disposed in the case 1, and a standby posture supported by the slider 2 and locked to the case corresponding portion. And a latch 3 that can be switched to a retracted posture for releasing the lock, an urging means 4, and a braking means 5. When the latch 3 is switched from the standby posture to the retracted posture, it is accumulated in the urging means 4. The sliding door 9 is pulled from the open position to the closed position by the biasing force.

  The striker unit 7 or 7A is attached to the end face 46 of the sliding door 9A protruding from the nose 45 of the sliding door 9A in a state in which the part of the nose is replaced. In this case, in the striker unit 7, a fixed plate portion 55 attached to the end surface 46, and an operation member that is erected on the fixed plate portion 55 and switches the latch 3 from the standby posture to the retracted posture or from the retracted posture to the standby posture. It has an engaging projection 56 and a shielding plate 57 erected on one side along the longitudinal direction of the fixed plate portion 55, and a part of the door 45 of the sliding door 9A is cut by a predetermined length from one end of the door. The mounting portion 47 is attached via a fixed plate portion 55. The striker unit 7A has a fixed plate portion 55 attached to the end face 46, the same engaging projection 56 as described above, and a neck portion forming portion 58 that forms a part of the neck portion of the sliding door 9, and is provided on the nose side of the sliding door 9A. It is attached via a fixed plate portion 55 to an end face 46 formed on a flat surface (which is an upper end face but may be a lower end face). In this structure, the nose of the sliding door 9 is formed by the nose forming portion 58 and the receiving member 8 which are disposed on the end face 46 in a substantially straight line.

(Retraction Unit of First Form) Details of the retraction unit 6 will be clarified. As shown in FIGS. 1 and 4, the case 1 is elongated corresponding to the above-described lateral groove 43, and an invitation portion 1 a that is notched so as to be narrow from one end in the longitudinal direction to the middle of the other end, and an invitation from one end side. The guide part 1b inclined toward the part 1a is formed, and the inside is defined by a cover 15 that closes the upper surface 10 and both side surfaces 12 and the lower opening serving as an installation surface. The case 1 includes an urging means arrangement portion 11a and a braking means arrangement portion 11b, attachment portions 13a and 13b formed flat at both ends in the longitudinal direction, and a vertical wall 12b erected in front of the attachment portion 13b. A locking portion 12c that is provided on the arrangement portion 11a side of the vertical wall 12b and engages one end of a coil spring that is the biasing means 4, and a cylinder 50 that is provided on the arrangement portion 11b side and is the braking means 5. A restricting portion 12d for locking the end of the guide portion 14 and a guide portion 14 are provided. The guide portion 14 is between the both placement portions 11a and 11b, and extends from the substantially intermediate position toward the front of the mounting portion 13a. The guide portion 14 is substantially L-shaped from the end on the mounting portion 13a side from the straight groove 14a. The locking groove 14b is a step.

  The cover 15 includes an urging means arrangement portion 15a and a braking means arrangement portion 15b, and a guide portion 15c for guiding an engagement protrusion 56, which will be described later, to the center of the cover width by cutting out one side in the longitudinal direction. And a guide piece 18d that suppresses play of the coil spring that is the urging means 4 disposed on the placement portion 15a, and an end portion 19a opposite to the attachment portion 18a. A restricting portion 19b that is provided on the arrangement portion 15b side and locks an end portion of the cylinder 50 that is the braking means 5 and a guide portion 16 that corresponds to the guide portion 14 are provided. The guide portion 16 includes a linear groove 16a corresponding to the linear groove 14a and a locking groove 16b having a substantially L-shaped step corresponding to the locking portion 14b.

  A plurality of pairs of locking portions 12a and engaging portions 17a that are engaged with each other when the cover 15 is overlapped with the case 1 are provided on both the side surface 12 on the case side and the both sides 17 on the cover side. In addition, the case-side mounting portion 18a and the cover-side mounting portion 18a are provided with a locking leg 13c with a claw and an engagement portion 18c with a hole that are engaged with each other when the cover 15 is overlapped with the case 1. It has been. In this example, the cover 15 is attached to the case 1 through their engagement, and the latch 3 described later is exposed to the cover side invitation portion 15c in this state.

  As shown in FIGS. 1, 2 and 6, the slider 2 has a resin small block shape disposed in the space between the case 11 and the cover 15, and is provided on the upper and lower surfaces 20 and 21. 23, 24 and the through-hole 26, the insertion hole 25 provided in the back surface 22 and leading to the through-hole 26, the connecting shaft portion 27 protruding below the upper surface 20, and the shaft portion 27 It has the convex part 24 provided in the end surface, and the convex part 27a arrange | positioned on the coaxial line. In FIG. 1, the upper surface 20 is disposed on the cover 15 side and the convex portion 23 is fitted to the guide portion 16, and the lower surface 21 is disposed on the case 1 side and the convex portion 24 is fitted to the guide portion 14. The braking means 5 is connected to the through hole 26.

  Here, a piston damper type is used for the braking means 5. This piston-type damper may be any known one (for example, Japanese Patent Application Laid-Open No. 2006-29564), and includes a cylinder 50 and a piston rod 51 that is gently projected and retracted in the cylinder 50. For example, the piston rod 51 is fixed. Any structure may be used as long as it is gently driven with respect to the side cylinder 50. As shown in FIG. 1, the cylinder 50 has a neck-like locking groove 50a on the outer periphery of the rear end, and the piston rod 51 has a neck-like locking groove 51a on the outer periphery of the front end.

The latch 3 is a resin molded body having substantially the same thickness as that of the striker 2.
Convex portions 33, 34 provided on 31, a pivotal support hole 37 provided on the back surface 32 and penetrating in the vertical direction, a claw portion 35 provided on the opposite side or the front side of the back surface 32, and a claw portion 35 A restraining portion 36 that is thin on the inside, and a spring locking portion 38 that protrudes from the back 32 side to one side. In FIG. 1, the upper surface 30 is disposed on the cover 15 side and the convex portion 33 is fitted to the guide portion 16, and the lower surface 31 is disposed on the case 1 side and the convex portion 34 is fitted to the guide portion 14. The shaft portion 27 is fitted into the pivot hole 37. The locking part 38 forms a latching hole 39, and the corresponding end of the urging means 4 is locked there.

  Here, the urging means 4 is a compression coil spring. The total size of the spring is almost equal to the length of the cylinder 50 in a state where the urging force is released as shown in FIG. 2B, and is extended to the maximum via the piston rod 51 as shown in FIG. It is possible to accumulate the urging force. At both ends, mounting locking portions 4a and 4b are provided.

  Each of the above members is, for example, together with the piston type damper that is the braking means 5 and the coil spring that is the biasing means 4 in a state where the slider 2 and the latch 3 are connected via the engagement of the shaft portion 27 and the pivotal support hole 37. The retraction unit 6 is completed by incorporating the case 1 and attaching the cover 15 to the case 1.

  The piston rod 51 is connected to the slider 2 by engaging the retaining ring 52 from the through hole 26 to the locking groove 51a on the outer periphery of the rod tip with the rod tip inserted into the insertion hole 25. The braking means 5, the slider 2 and the latch 3 are arranged along the arrangement portion 11 b of the case 1. The cylinder 50 is fixed to the case 1 by engaging the engaging groove 50a with the above-described restricting portion 12d (and the cover-side restricting portion 19b in the case of a cover-mounted body). In the slider 2 and the latch 3, the lower convex portion 24 and the convex portion 34 are fitted into the case side guide portion 14 (and the upper convex portion 23 and the convex portion 33 are the cover side guide portion 16 in the cover mounting body. Slidably disposed in the case 1 in a state of being fitted to the case 1. As for the compression coil spring of the urging means 4, the locking portion 4 a on one end side is locked to the case side locking portion 12 c and the locking portion 4 b on the other end side is engaged with the latching hole 39 of the latch side locking portion 38. Stopped.

  The latch 3 has a retracted posture in which the convex portions 33 and 34 slide along the linear grooves 14a and 16a as the slider 2 slides, and enters the locking grooves 14b and 16b from the linear grooves 14a and 16a. To the standby posture to be locked. In this example, the other end locking portion 4b of the compression coil spring as the biasing means 4 is locked to the latch 3, but instead the other end locking portion 4b may be locked to the slider 2 side. Good. In this case, the slider 2 is provided with a locking portion 28 with a locking hole as illustrated by an imaginary line in FIG.

(Striker unit of the first form) In this example, the engaging projection 56 which is an operating member erected on the upper surface of the fixing plate portion 55 for mounting, and the longitudinal direction of the fixing plate portion integrated with the fixing plate portion 55 It consists of a resin molding which has the light-shielding plate part 57 standing on one side along. The fixed plate portion 55 and the light shielding plate portion 57 have a substantially L longitudinal section. The fixed plate portion 55 has screw mounting holes on both sides, the length is substantially the same as the entire size of the case 1, and the plate width is substantially the same as the width of the door neck 45 as shown in FIG. The light shielding plate portion 57 has substantially the same height as the door nose 45, and the fixing plate portion 55 is screwed or the like with respect to the mounting portion 47 obtained by cutting a part of the door nose 45 from the one end of the door nose to the length of the case 1. It is arranged in a state of being continuous with one side of the door nose 45 in a fixed state.

(Operation) FIGS. 7 to 9 show the operation of the above-described sliding assist mechanism, that is, the retracting unit 6 and the striker unit 7. Here, the operation will be clarified assuming the case where it is applied to the sliding door 9A of FIG.

(1) FIG. 7 shows a process of moving the sliding door 9A from the open direction to the close direction. In this state, the left side portion of the retracting unit 6, that is, the standby posture of the latch 3 is shown together with the striker unit 7. In this waiting position of the latch, the coil spring which is the urging means 4 is extended to accumulate the urging force. The protrusions 33 and 34 of the latch 3 are locked in the case-side locking groove 14 b and the cover-side locking groove 16 b, thereby restricting the position of the slider 2 </ b> A against the biasing force of the biasing means 3.

(2) Here, in the above sliding assist mechanism, first, when the sliding door 9A is moved from the fully open state to the near side of FIG. 7, the striker unit 7 is attached to the groove bottom of the Kamoi side lateral groove 43. The unit 6 is moved while being slidably contacted with the corresponding part of the unit 6, and is thereby positioned with respect to the retracting unit 6 with high accuracy. For this reason, even if the door nose 45 has play with respect to the horizontal groove 43, the door nose side engaging protrusion 56 and the latch 3 on the retracting unit 6 side are always locked and released as designed. Has been. In addition, when the sliding door 9A is moved in the closing direction and slightly moves further to the right side from the state of FIG. 7, the engaging projection 56 latches along the guide portion 15c provided on the cover 15 constituting the retracting unit. 3 is devised so as to be surely brought into contact with the corresponding part.

(3) FIG. 8 shows the process of switching the latch to the retracted position. In this switching of the posture of the latch, when the latch 3 is in the standby posture of FIG. 8C, the sliding door 9A is further moved in the closing direction, and the engaging projection 8 of the sliding door 9A hits the corresponding portion of the restraining portion 36. The latch 3 is rotated counterclockwise with the shaft portion 27 as a fulcrum due to the stress, and the protrusions 33 and 34 are unlocked from the locking grooves 14b and 16b by the rotation, and are engaged with the linear grooves 14a and 16a. Switch to the retracted position. The engaging protrusion 56 is restrained by the inside of the latch side claw portion 35, that is, by the restraining portion 36.

(4) FIG. 9 shows a state in which the sliding door 9A is moved to the closed position by the urging force of the urging means 4 after the latch is switched to the retracted position. That is, in this sliding assist mechanism, when the latch 3 is switched to the retracted posture as shown in FIG. 8D, the engaging protrusion 56 is restrained by the latch side restraining portion 36. In this restrained state, the sliding door 9 </ b> A is moved by the urging force of the urging means 4 together with the latch 3, and is moved to the closed position in conjunction with the movement via the engaging protrusion 56. In this case, in this embodiment, when the sliding door 9 </ b> A is moved by the urging force of the urging means 4, the sliding door 9 </ b> A is gently slid under the braking force of the braking means 5 described above.

(5) In the closed position of the sliding door 9 </ b> A, the light shielding plate portion 57 is provided so as to be integrated with the fixed plate portion 55, stand up to one side along the longitudinal direction, and be continuous with one side of the door neck 45. Therefore, for example, it is possible to eliminate the possibility that indoor light leaks outside from the cut portion of the nose 45, that is, the mounting portion 47 which is lowered by one step.

(6) In the process of moving the sliding door 9A from the closed position to the opening direction, the slider 2 is moved to the left side through the engaging protrusion 56 that is in the retracted posture and is engaged with the restraining portion 36. The urging force is accumulated in the urging means 4 by this movement. The sliding door 9A is further moved to the left side, and the latch 3 reaches the locking grooves 14b and 16b from the straight grooves 14a and 16a as shown in FIG. 8D. Then, the latch 3 rotates clockwise with the shaft portion 27 as a fulcrum by the reaction force when the engaging projection 56 pushes the claw portion 35 and comes out of the restraining portion 36, while the convex portions 33 and 34 are engaged with the locking grooves 14b, 16b is engaged and switched to the standby posture. The urging force stored in the urging means 4 is held as long as the latch 3 is in the standby posture.

(Retraction Unit of Second Form) This retraction unit 6A is substantially the same as that of the first form. That is, the case 1 is formed in an elongated shape corresponding to the lateral groove 9a as shown in FIGS. 2 and 3, and an invitation portion 1a cut out so as to become narrow from one end in the longitudinal direction to the middle of the other end, A guide portion 1b that is inclined from one end side toward the invitation portion 1a is formed, and the interior is defined by an upper surface 10 and both side surfaces 12 serving as installation surfaces and a cover 15 that closes the lower opening. .

  In case 1, there are two rows of urging means arrangement portions 11a and braking means arrangement portions 11b in the longitudinal direction, attachment holes 13a and 13b formed through both ends in the longitudinal direction, and attachment holes 13b. The vertical wall 12b erected in front of the front, the locking portion 12c provided on the arrangement portion 11a side of the vertical wall 12b and locking the one end 4a of the coil spring as the biasing means 4, and the arrangement portion 11b side A restricting portion 12d that locks an end portion of the cylinder 50 that is the braking means 5 and a guide portion 14 is provided. The guide portion 14 is between the two placement portions 11a and 11b, and extends from the substantially intermediate position toward the front of the mounting hole 13a. The guide portion 14 is substantially L-shaped from the straight groove 14a to the mounting hole 13a side. And a locking groove 14b that is bent.

  The cover 15 has a biasing means placement portion and a braking means placement portion (not shown) corresponding to the case 1, and one side of the cover 15 is cut out in the longitudinal direction so that the engagement protrusion 61 of the striker unit 6 is located at the center of the cover width. An invitation portion 15c for guiding, an attachment portion 18a with a hole 17a overlaid on the attachment hole 13a, a guide piece (not shown) that suppresses the play of the coil spring that is the biasing means 4, and an end side opposite to the attachment portion 18a (Not shown) for holding the end of the cylinder 50 serving as the braking means 5 from above and a guide portion (not shown) corresponding to the guide portion 14. The guide portion (not shown) includes a linear groove corresponding to the linear groove 14a and a substantially L-shaped locking groove corresponding to the locking portion 14b. In FIG. 3, reference numeral 18 denotes a recess provided to form the guide piece.

  The both side surfaces 12 of the case and the both side surfaces 19 of the cover are provided with a plurality of pairs of locking portions 12a and engaging portions 19a that are engaged with each other when the cover 15 is overlapped with the case 1. In this example, the cover 15 is attached to the case 1 through their engagement, and in this state, the latch 3 to be described later is exposed and arranged on the cover side invitation portion 15c (the invitation portion 1a of the retracting unit 6A). The case 1 and the cover 15 described above are designed so that the height and the width dimension can be accommodated in the lateral groove 43 except for the portion where the invitation portion 15 c is formed.

  As shown in FIGS. 12 and 13, the slider 2 has a small block shape made of resin disposed in the space between the case 1 and the cover 15, and convex portions 23 and 24 provided on the upper and lower surfaces 20 and 21. And the through holes 26a and 26b, the insertion holes 25 provided in the back surface 22 and communicating with the through holes 26a and 26b, and the connecting shaft portion 27 provided downward from the upper surface 20 side. In FIG. 12, the upper surface 20 is disposed on the cover 15 side and the convex portion 23 is fitted with the cover-side guide portion described above, and the lower surface 21 is disposed on the case 1 side and the convex portion 24 is disposed on the guide portion 14. Mating. A retaining ring 52 is disposed in the through hole 26b.

  Since the biasing means 4 and the braking means 5 are the same as those in the first embodiment, the description thereof is omitted. The latch 3 is a resin molded body having substantially the same thickness as the slider 2 as shown in FIGS. 12 and 14, and is provided in the vicinity of the convex portions 33 and 34 provided on the upper and lower surfaces 30 and 31 and the back surface 32. A pivot hole 37 penetrating in the vertical direction, a claw portion 35 provided on the opposite side of the back surface 32, that is, on the front side, a constraining portion 36 lacking the inside of the claw portion 35, and one side portion from the back surface 32 side And a spring locking portion 38 projecting from the spring. In FIG. 3, the upper surface 30 is disposed on the cover 15 side and the convex portion 33 is fitted with the above-described guide portion on the cover side, and the lower surface 31 is disposed on the case 1 side and the convex portion 34 is disposed on the guide portion 14. Mating. The shaft portion 27 is fitted into the pivot hole 37. The latching portion 38 has a latching hole 39, and the other end 4b of the biasing means 4 is latched there.

  Each of the above members is, for example, together with the piston type damper that is the braking means 5 and the coil spring that is the biasing means 4 in a state where the slider 2 and the latch 3 are connected via the engagement of the shaft portion 27 and the pivotal support hole 37. By incorporating into the case 1 and attaching the cover 15 to the case 1, the pull-in unit 6A is completed. In this case, the piston rod 51 is inserted into the insertion hole 25 with respect to the slider 2 as shown in the enlarged views of FIG. 18 and FIG. 19, and the retaining ring 52 is inserted into the through hole 26b in the locking groove 43 on the outer periphery of the rod tip. It is connected by engaging. The braking means 5, the slider 2, and the latch 3 are arranged along the arrangement portion 11 b of the case 1. The cylinder 50 is fixed to the case 1 by engaging the engaging groove 42 with the restricting portion 12d (and a cover-side restricting portion (not shown)).

  In the slider 2 and the latch 3, the lower convex portion 24 and the convex portion 34 are fitted to the case side guide portion 14 (and the upper convex portion 23 and the convex portion 33 are fitted to a cover side guide portion (not shown). ) Is slidably arranged in the case 1. The coil spring which is the urging means 4 has one end side locking portion 4a hooked on the case side locking portion 12c, and the other end side locking portion 4b engaged with the locking hole 39 of the latch side locking portion 38. Stopped. The latch 3 is engaged so that the protrusions 33 and 34 slide along the linear groove 14a as the slider 2 slides, and the latch 3 enters the locking groove 14b from the linear groove 14a and cannot slide. It is switched to the standby posture to be stopped.

 The above retracting unit 6A has a screw M to be inserted into the hole 17a and the mounting hole 13a in a state where the upper surface 10 as the installation surface is seated on the bottom surface in the lateral groove with respect to the lateral groove 43 as shown in FIG. The fixing operation is performed by a screw M inserted into the mounting hole 13b. Further, in this mounting structure, one of the side surfaces 12 of the case and the side surfaces 19 of the cover is formed such that one side surface forming the guiding portion 1a (15c) is in contact with one inner side surface of the lateral groove 43 without a gap, and the other side surface is It is set so that a slight gap is maintained between the other inner surface of the lateral groove 43. This gap has a dimension that allows a corresponding portion of a light shielding plate 63 on the striker unit side to be described later to escape.

(Striker unit of the second form) In the second form, as shown in FIG. 11, the sliding door 9 is in a state without a nose, that is, in this example, the upper end face 46 is formed as a flat face. Then, the door neck is formed by a part of the striker unit 7A disposed between the left and right ends 9c, 9d of the sliding door and the receiving member 8, and the light shielding member 86 is disposed between the striker unit 7A and the receiving member 8. have.

  The striker unit 7A is a resin injection-molded body, and has an elongated fixed plate portion 55 as shown in FIG. 15, and an engaging protrusion that is provided at one side edge at a substantially intermediate position of the fixed plate portion 55. 56, a light shielding plate portion 57 erected in a substantially L shape along one side edge of the fixed plate portion 55, and an engagement protrusion 56 and one end side at the other side edge of the fixed plate portion 55. A light shielding plate portion 57a erected substantially in an L shape and a rectangular solid receiving portion 58 provided at one end are integrally formed.

  The fixed plate portion 55 has the same width as the door fitting fitted in the lateral groove 43, and is provided at the end opposite to the elongated attachment hole 55 a, the circular attachment hole 55 b, and the receiving portion 58. Mounting holes 55c. As shown in FIG. 11C, a gap absorbing spacer S is attached to the mounting hole 55c as necessary. The engaging protrusion 56 is disengaged from the latch 3 of the retracting unit 6A. Of the light shielding plate portion 57, the portion facing the light shielding plate portion 57a, the light shielding plate portion 57a, and the receiving portion 58 are set as a sliding door neck portion forming portion. The receiving portion 58 is partitioned by both side surfaces, upper and lower surfaces, and end surfaces, and is responsible for attaching the light shielding member 70 to the end surface 46 between the receiving member 8 and the nose forming portion of the sliding door 9. .

  That is, the receiving portion 58 is provided with a mounting hole 58a in the center portion and a substantially inverted T-shaped fitting groove 59 on the end surface. The fitting groove 59 includes a lower horizontal groove 65a (not shown in the drawing) and a vertical groove 65b, and has a groove shape in which the corresponding end portion 70a of the light shielding member 70 can be fitted. That is, among the corresponding end portions 70a of the light shielding member 70, the end portion 71a of the horizontal portion 71 is fitted into the horizontal groove, and the end portion 72a of the light shielding portion 72 is fitted into the vertical groove 59b. The above striker unit 7A is attached to the upper end face 46 of the sliding door 9 by the three screws M inserted through the attachment holes 55a and 55b and the attachment hole 58a. The attachment holes 55a and 58a have a long hole shape, and are finely adjustable in the width direction when the striker unit 7A is attached straight to the end face 46.

(Receiving member) The receiving member 8 is the same as the receiving portion 58 in that it is responsible for the means for attaching the light shielding member 70 to the end face 46 of the sliding door and the door-neck forming action as shown in FIGS. is there. That is, the receiving member 8 is made of a resin molded body roughly divided by both side surfaces 81, upper and lower surfaces 82 and 83, and front and rear end surfaces 84 and 88. The receiving member 8 has two mounting holes 80 penetrating the upper and lower surfaces 82, 83, a substantially inverted T-shaped fitting groove 85 carved in the front end surface 84, and a rear end surface 88 projecting from the rear end surface 88. A locking vertical wall 87 located on a seat 86 extending from the lower side of the end face 88 is provided. In addition, the rear wall 87 is a place used when the receiving member 8 is used for a sliding sliding door, and may be omitted in the case of a sliding door other than a drawing door. Each mounting hole 80 has a long hole shape, and when the receiving member 8 is mounted on the extension line of the striker unit 7A with a screw M on the end surface 46 of the sliding door as shown in FIG. . The fitting groove 85 includes a vertical groove 85b and a lower horizontal groove 85a, and has a groove shape in which the corresponding end portion 70a of the light shielding member 70 can be fitted. That is, of the corresponding end portions of the light shielding member 70, the end portion 71a of the horizontal portion 71 is fitted into the horizontal groove 85a, and the end portion 71a of the light shielding portion 72 is fitted into the vertical groove 85b.

(Light Shielding Member) This light shielding member 70 has a sliding door 9 without a nose, that is, in this example, the end face 46 is formed as a flat surface, and the door is formed by the striker unit 7A and the receiving member 8 there. It is a member that shields the light so that it does not leak out from the portion lacking the portion corresponding to the door nose. That is, the light shielding member 70 is made of an elastic material such as resin or rubber and has a substantially inverted T-shaped longitudinal section. The horizontal portion 71, the light shielding portion 72 erected on the horizontal portion 71, and the horizontal portion 71 A leg portion 71a provided downward from both sides and an elastic contact portion 73 that projects between the leg portions 71a obliquely downward from the lower surface of the horizontal portion 71 and extends downward from the leg portion 71a are integrally formed. doing. Further, the light shielding member 70 has a height dimension substantially the same as that of the striker unit side receiving portion 58 and the receiving member 8 in a state where it is attached to the end face 46 of the sliding door, and the width dimension is set smaller than the width of the case 1. Has been.

  The light shielding member 70 is attached to the end surface 46 of the sliding door in a state where both sides are engaged with the striker unit side receiving portion 58 fixed to the end surface 46 and the receiving member 8. In this mounted state, the light shielding member 70 has the elastic contact portion 73 in pressure contact with the end face 46, and the light shielding portion 72 prevents light leakage through the lateral groove 46 when the sliding door 9 is in use. Note that the attachment structure of the light shielding member 70 may be an adhesive, a double-sided adhesive tape, a press fit, or the like with respect to the corresponding end surface of the sliding door 9 instead of the engagement structure.

(Operation) FIGS. 17 and 18 show the operation of the above sliding assist mechanism, that is, the retracting unit 6A and the striker unit 7A.
(1) FIG. 7 shows a process of moving the sliding door 9 from the open direction to the close direction. In this state, the latch 3 constituting the retracting unit 6A is in the standby posture as shown in the enlarged view of FIG. In the waiting posture of the latch 3, the coil spring as the urging means 4 is extended to accumulate the urging force. The protrusions 33 and 34 of the latch 3 are locked in the case-side locking groove 14 b and the cover-side locking groove, thereby restricting the position of the slider 2 against the biasing force of the biasing means 4.

(2) In the above sliding assist mechanism, first, when the sliding door 9 is moved from the open direction to the closing direction, the guide protrusion 1b of the retracting unit 6A in which the engaging projection 56 of the striker unit 6A is attached in the lateral groove 43. When the light shielding plate 57 is moved along the corresponding side surface of the case 1 with the guiding action, the light shielding plate 57 is positioned with high accuracy with respect to the retracting unit 6A. The For this reason, in this structure, even if the sliding door 9 has play with respect to the lateral groove 43, the engaging projection 56 of the striker unit 6A and the latch 3 of the retracting unit 6A are locked or released as designed. .

(3) The engaging protrusion 56 hits the corresponding portion of the latch 3 when the sliding door 9 is further moved in the closing direction. The latch 3 is rotated counterclockwise with the shaft portion 27 as a fulcrum due to the stress, and the protrusions 33 and 34 are unlocked from the locking groove 14b by the rotation, and are engaged with the linear groove 14a to be in a retracted posture. Can be switched. At the same time, the engaging protrusion 56 is restrained by the inside of the latch side claw portion 35, that is, by the restraining portion 36.

(4) FIG. 18 shows a state in which the sliding door 9 is switched to the closed position by the biasing force of the biasing means 4 after the latch is switched to the retracted posture. That is, in this sliding assist mechanism, when the latch 3 is switched to the retracted posture as shown in the enlarged view of FIG. In this restrained state, the sliding door 9 is moved to the closed position in conjunction with the slider 2 being slid by the urging force of the urging means 4 together with the latch 3. In this case, in this embodiment, when the sliding door 9 is moved by the urging force of the urging means 4, the sliding door 9 is gently slid under the braking force of the braking means 5 described above.

(5) In the closed position of the sliding door 9, for example, the possibility of indoor light leaking outside the end face 46 can be eliminated by the light shielding portion 72 of the light shielding member 70. In the process of moving the sliding door 9 from the closed position to the opening direction, the sliding door 9 is moved to the left side with the slider 2 via the engaging projection 56 engaged with the inside of the claw portion 35 in the retracted posture. The urging force is accumulated in the urging means 4 by this movement. The sliding door 9 is further moved to the left side, and the latches 3 reach the locking grooves 14b from the straight grooves 14a as shown in FIG. Then, the latch 3 is rotated clockwise with the shaft portion 27 as a fulcrum by the reaction force when the engaging projection 56 pushes the claw portion 35 out of the latch 35, and the convex portions 33 and 34 engage with the locking groove 14b. Then, it is switched to the standby posture. The urging force stored in the urging means 4 is maintained as long as the latch 3 is in the standby posture.

(6) In the above structure, compared with the conventional sliding door with a nose, the sliding door 9 is produced with a flat end face 46 on the nose side, and the striker unit 6A and the receiving member 8 are attached to the flat face. By forming the door head, the number of sliding door manufacturing steps can be reduced, and the sliding assist mechanism can be easily adopted. Furthermore, since the light shielding member 70 is disposed between the above-described nose forming portion and the receiving member 8, the problem that the light in the room leaks out can be reliably solved.

(Modification 1) FIGS. 19 and 20 show an example in which a gap adjusting spacer S1 is provided together with the pull-in unit 6A in the lateral groove 43 of the main body frame. The spacer S1 is used to prevent the sliding door 9 from tilting or jumping up when moving, and is connected to the mounting portion 60 or another spacer integrated with the mounting portion 60 so as to be capable of cutting. It is the structure overlapped on the arrangement | positioning part 65 for spacers provided in the extension part 64 extended from the attachment part 60 or the attachment part 60 later.

  More specifically, the spacer S1 includes a mounting portion 60 that is substantially in the middle of the left and right as shown in FIG. 20, an extension portion 64 that extends to one side of the mounting portion 60 to form a placement portion 65, and a mounting portion. This is an injection-molded body in which a plurality of adjustment spacers 67 connected to the other side of 60 are severably connected. The attachment portion 60 is provided with an attachment hole 62a in the center portion.

  The extension portion 64 is formed next to the attachment portion 60 and has a rectangular concave spacer placement portion 65. The placement portion 65 is provided with a mounting hole 65a at the center portion and positioning holes 68 at two corners. Among the plurality of spacer portions 67, the first space portion 67 is connected to the corresponding end of the mounting portion 60 via the thinned cutting portion 66, and the second spacer portion 67 is connected to the corresponding end of the first spacer portion 67. The third spacer portion 67 is connected to the corresponding end of the second spacer portion 67 via the thin-walled cutting planned portion 66. Each spacer portion 67 has an attachment hole 67a that coincides with the attachment hole 65a and a positioning hole 69 that coincides with the positioning hole 68 when the spacer portion 67 is cut at the cutting portion 66 and then overlapped with the arrangement portion 65 in the state of being inverted upside down. Alternatively, a positioning convex portion is provided.

  The spacer S1 is attached to the lateral groove 43 by the two screws M inserted through the attachment holes 62a and 62b after the attachment portion 60 is positioned on the bottom surface in the groove. In this attached state, the gap adjustment can be performed accurately and quickly by appropriately filling the gaps between the retractable case 1 and the receiving member 8 </ b> A and the lateral grooves 43 using one or more spacer portions 67. . In other words, this operation is necessary when, for example, the spacer S1 is attached to the lateral groove 43 of the main body frame 9 or when the sliding door 9 is deformed by continuous use after being attached and springs up during movement and cannot move smoothly. After the number of spacer portions 67 are cut off via the scheduled cutting portion 66, the spacer portions 67 are arranged so as to overlap the arrangement portion 65 in order and attached with screws M or the like.

  In the above structure, the spacer S1 can be easily attached without processing the lateral groove 43. For example, the retracting unit 6A is disposed in the lateral groove 43, and the spacer S1 disposed in the groove of the lateral groove 43 not obstructing is provided. This has the advantage that the sliding door 9 can be smoothly moved and utilized. Note that the extension portion 64 may be regarded as a part of the attachment portion 60.

(Modification 2) FIG. 21 shows an example in which a gap adjusting spacer S2 is additionally formed on the striker unit 7B. That is, the striker unit 7B includes a fixed plate portion 55, an engaging projection 56, a light shielding plate portion 57 erected in a substantially L shape along one side edge of the fixed plate portion 55, as shown in FIG. The engaging projection 56 on the other side edge of the fixed plate portion 55, the light shielding plate portion 57 a erected in a substantially L shape along one end side, and the rectangular solid receiving portion 58 provided on one end are integrated. This is the same as the striker unit 6A. In this striker unit 7B, a spacer S2 similar to the spacer S1 described above is integrally formed on the fixed plate portion 55 on the side opposite to the receiving portion 58. That is, the spacer S2 is cut to the attachment portion 60 with the attachment hole 62a, the rectangular concave spacer arrangement portion 65 provided on one side (receiving portion 58) of the attachment portion 60, and the other side of the attachment portion 60. This is an injection-molded body in which a plurality of gap adjusting spacer portions 67 that are connected to each other are integrally formed. Each spacer portion 67 can be easily separated through a thin-shaped cutting scheduled portion 66.

  The placement portion 65 is provided with a mounting hole 65a at the center portion, and positioning holes are provided at two corners. Among the plurality of spacer portions 67, the first space portion 67 is connected to the corresponding end of the mounting portion 60 via the thinned cutting portion 66, and the second spacer portion 67 is connected to the corresponding end of the first spacer portion 67. The third spacer portion 67 is connected to the corresponding end of the second spacer portion 67 via the thin-walled cutting planned portion 66. Each spacer portion 67 includes an attachment hole 67a that coincides with the attachment hole 65a when the spacer portion 67 is cut at the planned cutting portion 66 and then overlapped with the arrangement portion 65 in a vertically inverted state, and a positioning hole or a replacement thereof. Positioning protrusions are provided.

Since the above striker unit 7B has a plurality of space portions 67,
For example, when the striker unit 7B is attached to the end surface 46 of the sliding door 9, or when the sliding door 50 is deformed by continuous use after being attached and springs up during movement and cannot be moved smoothly, the required number of spacer portions 67 are attached After separating through the cutting part 66, it is arranged so as to overlap with the arrangement part 65 in order, and the gap with the lateral groove 9a is adjusted by attaching with the screw M or the like. Therefore, even the structure as described above has an advantage that the smooth movement of the sliding door 50 can be maintained by utilizing the spacer portion 67 arranged at a place where it does not get in the way.

  Note that the present invention is not limited to the above-described embodiment, and may be provided with technical elements specified in the claims, and details can be developed based on this. For example, the striker unit as the actuating member may be attached to the lower end surface of the sliding door in the type in which the door neck is attached to the lower end surface instead of the upper end surface of the sliding door. Further, the sliding door is automatically switched from the closed direction to the open direction by the above sliding assist mechanism.

1 ... Case (10 is upper surface, 12 is side surface, 15 is cover)
2 ... Slider (23 and 24 are convex parts, 27 is a shaft part, 25 is an insertion hole)
3 ... Latch (33 and 34 are convex portions, 35 is a claw portion, 36 is a restraining portion, and 38 is a locking portion)
4. Biasing means (4a and 4b are locking portions on both sides)
5 ... braking means (50 is a cylinder, 51 is a piston rod)
6,6A ... Retraction unit (1a is the invitation part)
7, 7A, 7B ... striker unit (operating member: 55 is a fixed plate portion)
8: Receiving member (81 is a side surface, 85 is a fitting groove)
9A, 9B, 9 ... Sliding doors (45 is the door neck, 46 is the end face, 40 is the duck, 43 is the transverse groove)
40 ... Kamoi (the main frame is constructed, 43 is a lateral groove)
56 ... engagement projections 57, 57a ... light-shielding plate portion (the portion facing the neck portion is a neck portion forming portion)
58 .. receiving part (59 is a fitting groove)
S, S1, S2 ... Spacer adjustment spacer (60 is a mounting portion, 67 is a spacer portion)

Claims (12)

A case disposed in a lateral groove on the main body frame side, a slider slidably disposed in the case, a standby posture supported by the slider and locked to the case-corresponding portion, and a retracting posture for releasing the locking A pull-in unit comprising a latch that is switched to and energizing means,
An operation member that is attached to a sliding door that is moved along a lateral groove of the main body frame and that switches the latch from a standby posture to a retracted posture or switches from a retracted posture to a standby posture;
When the latch is switched from the standby position to the retracted position, the sliding assist mechanism pulls the sliding door from open to closed or from closed to open by the biasing force accumulated in the biasing means, A sliding assist mechanism, wherein a sliding door is fitted with a nose that fits into the lateral groove, and the operating member is attached to an end surface of the sliding door on the nose side. Butt the sliding door is part of the Tokubi together form a mounting portion taken along a predetermined length from Tokubi one end, said actuating member is a solid plate section that is mounted to the mounting portion and the fixing plate portion The sliding assist mechanism according to claim 1, further comprising an engaging protrusion that is provided and engaged with and disengaged from the latch. The actuating member has a light-shielding plate portion that is connected to the fixed plate portion and is erected on one side along the longitudinal direction of the fixed plate portion and arranged in a state continuous with one surface of the door nose. The sliding assist mechanism according to claim 2, wherein   The fixed plate portion and the light shielding plate portion are formed in a substantially L-shaped longitudinal section, and the engaging protrusion is erected on the side away from the light shielding plate portion in the plate width of the fixed plate portion. The sliding assist mechanism according to claim 3.   5. The sliding assist mechanism according to claim 1, wherein the actuating member includes a nose forming portion that is a part of the nose of the sliding door.   6. The sliding door according to claim 5, further comprising a receiving member arranged substantially linearly with the nose forming portion, wherein the receiving member and the nose forming portion form a nose of the sliding door. Sliding assist mechanism.   The sliding assist mechanism according to claim 6, further comprising a light shielding member disposed between a door nose forming portion of the operating member and the receiving member.    The sliding assist mechanism according to any one of claims 1 to 5, wherein the actuating member includes a gap adjusting spacer that is used to prevent tilting or jumping when the sliding door is moved.   The spacer is connected to the attachment portion or another spacer integrated with the attachment portion so as to be cut, and is overlapped with the attachment portion or an extended portion extending from the attachment portion after cutting. The sliding assist mechanism according to claim 8.    The main body frame has a gap adjusting spacer in the lateral groove that is used to prevent tilting or jumping up when the sliding door is moved, and the spacer is an attachment portion or other one integrated with the attachment portion. The sliding assist mechanism according to claim 1, wherein the sliding assist mechanism is connected to the spacer so as to be capable of being cut, and is overlapped with the attaching portion or an extension extending from the attaching portion after the cutting. The pull-in unit can be relatively positioned through the light shielding plate portion guided along one outer surface of the case in a state of being attached in a lateral groove of the main body frame, In addition, the engagement protrusion is guided from an invitation portion provided in the case, and a part of the case is narrowed by a predetermined length from one end, and can be brought into contact with the latch. sliding assist mechanism according to any one of three al 7.   A sliding door with a nose that can be retracted by the sliding assist mechanism according to claim 1.

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