JP2013002105A - Opening auxiliary device of sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an opening auxiliary device of a sliding door from restricting an opening/closing range of the sliding door.SOLUTION: An opening auxiliary device 1, 100 that assists initial operation at opening a sliding door 3 from a closed position includes: a support member 19 that is provided so as to face a door tail 12 of the sliding door 3 being at the closed position; an operation member 32 that is displaceably supported by the support member 19 and operated by an operator when the sliding door 3 is opened; and a press member 33 that is displaceably supported by the support member 19 and driven according to the displacement of the operation member 32 to be displaced between an initial position and a position after being driven, thereby pressing the door tail 12 to the closing direction of the sliding door 3. The press member 33 is disposed away from the sliding door 3 so as not to come into contact with the sliding door 3 when the sliding door 3 is opened/closed.

Description

  The present invention relates to an opening assist device for a sliding door attached to a window or an entrance of a building or the like.

  In recent years, buildings such as buildings and condominiums have been promoted to have high thermal insulation and airtightness in consideration of environmental impact and user comfort. Along with this, sliding doors attached to windows and entrances of buildings tend to increase in weight and adherence to door frames and the like. In particular, initial operation at the time of opening (that is, outer frame in close contact state ( A strong operating force may be required for the operation of separating the vertical frame) and the door toe.

  Therefore, an opening assist device has been developed to assist the operator's initial operation when such a sliding door is opened. For example, for sliding doors that can be opened and closed in a square frame formed in the opening of a building so that they can be opened and closed in a sliding manner or in a single-drawing manner, they are provided on the door toe to help reduce the initial operation at the time of opening. There is known an opening / closing assist device that performs unlocking of a hook lock provided as a door-end lock on a door-end collar in conjunction with an opening operation of the opening / closing assist device (see Patent Document 1).

JP 2004-353378 A

  In the prior art described in the above-mentioned Patent Document 1, the opening assist device is provided on the door-end side (door-end fence) of the sliding door, and the operation handle is arranged so as to protrude from the main surface of the sliding door. . Therefore, when increasing the overlap of the two sliding doors to maximize the opening, the opening assisting device including the handle hits the door butt (summing bowl) of the other sliding doors and completely overlaps the two sliding doors. There is a problem that it cannot be combined. That is, there is a problem that the opening assist device limits the opening / closing range of the sliding door. This problem occurs when the handle abuts against the opening edge of the door pocket even when the sliding door is moved in and out of the door pocket.

  This invention is made | formed in view of the above problem, Comprising: It makes it a subject that the opening assistance apparatus of a sliding door does not restrict | limit the opening / closing range of a sliding door.

  In order to solve the above problems, the present invention provides an opening assist device (1, 100) for assisting an initial operation when the sliding door (3) is opened from the closed position, wherein the sliding door is in the closed position. A support member (19) provided to face the buttocks (12), an operation member (32) supported by the support member so as to be displaceable and operated by an operator when the sliding door is opened, A pressing member (33) supported by the support member so as to be displaceable, driven according to the displacement of the operation member, displaced between an initial position and a post-drive position, and pressing the door bottom in the opening direction of the sliding door. The pressing member is arranged apart from the sliding door so as not to come into contact with the sliding door when the sliding door opens and closes at the initial position.

  According to this configuration, the operating member and the pressing member are supported by the support member, and the pressing member acting on the door bottom does not contact the sliding door that opens and closes at the initial position. There is no regulation.

  In another aspect of the present invention, the door butt portion includes a sump that protrudes toward the support member so as to form a stepped portion, and the pressing member extends from the direction along the opening / closing direction of the sliding door. It is characterized by pressing the summon bowl in the opening direction.

  According to this configuration, the pressing member presses the summon bowl provided in the sliding door.

  Another aspect of the present invention is characterized in that a pressed portion (53) pressed by the pressing member is provided on the summing bowl so as to protrude in the closing direction along the surface of the sliding door.

  According to this configuration, it is possible to ensure a long stroke for the pressing member to press the pressed portion.

  In another aspect of the present invention, the pressing member is supported by the support member so as to be rotatable between the initial position and the post-drive position.

  According to this configuration, the pressing member that is separated from the sliding door in the initial position, and that presses the summon candy in the opening direction from the direction along the opening / closing direction of the sliding door when driven by the operation member has a simple structure. Can be configured.

  The pressing member projects from a distal end of the base shaft (44) extending in the radial direction of the rotation shaft to one side in a tangential direction centering on the rotation shaft, and presses the summing rod An end length (45) and a pressed end portion (46) protruding to the other side in the tangential direction and pressed by the operating member, and a protruding length of the pressed end portion from the tip of the base portion Is characterized in that the pressing end portion is longer than the protruding length from the tip of the base portion.

  According to this configuration, it is possible to ensure a long stroke for the operation lever to displace the pressing member while avoiding the operation lever from approaching the sliding door.

  In another aspect of the present invention, the door butt portion is between a first position extending along an opening / closing direction of the sliding door and a second position extending in a standing state with respect to the main surface of the sliding door. A pressed member (112) that is rotatably supported by the rotation member, and a biasing member (119) that biases the pressed member to the second position, wherein the pressed member is the second member. When positioned at the position, the pressing member driven by the operation member is pressed to the side opposite to the first position to displace the sliding door in the opening direction, while the sliding door moves in the opening direction. In this case, it is pressed by the support member and is displaced from the second position to the first position against the urging force of the urging member.

  According to this configuration, since the pressing member moves the sliding door in the opening direction by pressing the pressed member, the pressing member can be disposed at a position separated from the sliding door. In addition, the pressed member escapes to the first position when it hits the support member, so the pressed member does not restrict the opening / closing range of the sliding door.

  In another aspect of the present invention, the door bottom has a holder (113) in which a locking hole (116) is formed, and the support member protrudes toward the door bottom. The pressed member has a locking projection (120) locked to the locking hole when positioned at the first position, and changes from a state where the sliding door is opened to the closed position. An engaging projection (118) that abuts against the projecting piece, and the locking projection is locked in the locking hole to resist the biasing force of the biasing member. When the engaging projection is pressed against the projecting piece when the sliding door is changed from the opened state to the closed position, the locking projection and the locking hole are It is characterized by rotating to the second position while releasing the locking structure.

  According to this configuration, the pressed member is held at the first position when the sliding door moves in the opening direction from the closed position, and the pressed member returns from the first position to the second position when the sliding door returns to the closed position. To do.

  According to the above configuration, it is possible to provide a sliding door opening assist device that does not limit the opening / closing range of the sliding door.

The perspective view of the sash window provided with the opening assistance apparatus which concerns on 1st Embodiment. The perspective view of the opening assistance apparatus which concerns on 1st Embodiment. The disassembled perspective view of the opening assistance apparatus which concerns on 1st Embodiment. The perspective view which shows the back surface of the operation lever which concerns on 1st Embodiment. The exploded perspective view of a receiving member in a 1st embodiment Side view of the opening assistance device according to the first embodiment. VII-VII sectional view of FIG. 6 showing the initial state of the opening assist device Sectional drawing which shows the state after a drive of an opening assistance apparatus The disassembled perspective view of the opening assistance apparatus which concerns on 2nd Embodiment. The disassembled perspective view which shows the receiving member and striker which concern on 2nd Embodiment. Side view of the opening assist device according to the second embodiment XII-XII sectional view of FIG. Sectional drawing which shows the middle form at the time of operating an operation lever from the form shown in FIG. Sectional drawing which shows the form at the time of further displacing the left window to the right from the form shown in FIG.

  Hereinafter, a sliding door opening assist device according to the present invention (hereinafter simply referred to as an opening assist device) will be described with reference to the drawings. In the description, the term indicating the direction follows the direction indicated by the arrows in FIGS. 1 and 2 in principle.

(First embodiment)
As shown in FIG. 1, the opening assistance device 1 according to the first embodiment of the present invention is installed in a sliding sash window 2, and assists an initial operation when an operator (not shown) opens the sash window 2. To do. The sash window 2 is composed of a rectangular outer frame (not shown) installed in an opening of a building or the like, and a left window 3 and a right window 4 supported by the outer frame. The left window 3 is disposed at a position deviated to the front side with respect to the right window 4, and the left window 3 and the right window 4 are slidable in the left-right direction relative to the outer frame independently of each other.

  The left window 3 has a quadrangular frame made up of a door toe 11, a summoning coffin 12, an upper coffin 13 and a lower coffin 14, and a plate glass 16 supported by the frame. A packing 17 is interposed between the frame body and the plate glass 16. Similarly, the right window 4 includes a rectangular frame made up of a door toe 18, a sump 19, an upper eave 20 and a lower eave 21, a plate glass 23 supported by the frame, a frame and a plate glass 23. And a packing 24 interposed therebetween. Each plate glass 16 and 23 is thinner than each of the ridges 11 to 14 and 18 to 21, and the ridges 11 to 14 of the left window 3 and the ridges 18 to 21 of the right window 4 are The left window 3 and the right window 4 are arranged with a gap in the front-rear direction so that they do not come into contact with each other when sliding.

  A state in which the door toe bars 11 and 18 are close to an outer frame (not shown) and the summit bars 12 and 19 face each other in the front-rear direction is referred to as a closed state of the sash window 2 (a state shown in FIG. 1). In this embodiment, when opening and closing the sash window 2, the right window 4 is fixed with respect to the outer frame, and the left window 3 is slid with respect to the outer frame. The summing bowl 12 of the left window 3 is provided with a flexible weather strip 27 for closing the gap in the front-rear direction with the summing bowl 19 of the right window 4 in the closed state (FIG. 2). , 12).

  The opening assistance device 1 is attached to a summing bar 19 of the right window 4 as a support member. As shown in FIGS. 2 and 3, the opening assist device 1 includes a base member 31 attached to the left end surface 25 of the summoning tub 19, and an operation lever 32 and a pressing member 33 that are supported by the base member 31 so as to be displaceable. Prepare mainly. The base member 31 is fastened to the summoning bar 19 with screws.

  The operation lever 32 includes a stepped through hole 35 at one end, and a shaft 36 having an enlarged head at one end is coupled to the through hole 35 so as not to rotate. The other end of the shaft 36 is rotatably supported by the base member 31. Thus, the operation lever 32 is rotatably supported by the base member 31 with the axis A of the shaft 36 extending in the left-right direction as the rotation axis. A half-moon-shaped crescent 37 is attached to the right side of the operation lever 32 (base member 31 side), and the crescent 37 rotates integrally with the operation lever 32.

  The other end of the operation lever 32 is a grip portion 38 that is gripped by the operator. As shown in FIG. 4, the intermediate portion in the longitudinal direction of the operation lever 32, and the portion facing the pressing member 33 when rotating downward, is cut off obliquely including the corner portion. A cam surface 39 that can be engaged with 33 is formed.

  The pressing member 33 is pivotally supported by a shaft 42 supported by a U-shaped housing 41. The base member 31 is formed with a housing receiving portion 43 that continuously opens from the left side to the front side thereof, and the housing 41 is fitted into the housing receiving portion 43 and fixed. In a state where the housing 41 is coupled to the base member 31, the shaft 42 extends in the vertical direction. With the above configuration, the pressing member 33 is rotatably supported by the base member 31 with the axis B of the shaft 42 extending in the vertical direction as the rotation axis via the shaft 42 and the housing 41.

  As shown in FIGS. 2 and 7, the pressing member 33 has a base portion 44 that extends in a radial direction of the shaft 42 from a portion pivotally supported by the shaft 42. At the tip of the base portion 44, a pressing end portion 45 projecting in one of the tangential directions around the shaft 42 and a pressed end portion 46 projecting in the other of the tangential directions are provided. That is, the pressing member 33 has a substantially T shape. The protruding length of the pressing end 45 from the tip of the base 44 is longer than the protruding length of the pressed end 46 from the tip of the base 44, and is set to about 5 times in this embodiment. As shown in FIG. 2, the upper portion of the tip end portion of the pressed end portion 46 is formed as a smooth curved surface 47. The curved surface 47 may include a spherical surface.

  A torsion coil spring 48 is interposed between the housing 41 and the base portion 44 of the pressing member 33. The torsion coil spring 48 urges the pressing member 33 in the rotational direction (the clockwise direction as viewed from below as shown in FIG. 7) that faces the protruding direction of the pressed end 46. As shown in FIG. 7, the base 44 biased by the torsion coil spring 48 is partly brought into contact with the housing 41 so that the rotation is restricted at a predetermined position. The position of the pressing member 33 at this time is set as an initial position. When the pressing member 33 is in the initial position, the base portion 44 extends substantially to the left, and the tip end of the pressing end portion 45 is disposed so as not to protrude forward from the summing bar 19 of the right window 4. Further, the tip end portion of the pressed end portion 46 protrudes leftward from the base member 31 and is disposed rearward of the shaft 42 that is the rotation shaft of the pressing member 33.

  As shown in FIG. 5, a receiving member 52 combined with a striker 51 is attached to the sump 12 of the left window 3. The receiving member 52 is a flat rectangular parallelepiped member extending in the up-down direction, and has a thickness in the front-rear direction that is thinner than a thickness in the left-right direction. A support hole 54 penetrating from the left end 53 to the right end is formed in the upper portion of the receiving member 52. The striker 51 has an engaging portion that can engage with the crescent 37 at one end, is inserted into the support hole 54 from the other end, and the engaging portion protrudes leftward with respect to the receiving member 52. ing. A cutout 55 extending in the vertical direction is formed at the right end of the receiving member 52. With the notch 55 engaged with a corner 59 formed at the boundary between the left side wall 57 and the rear side wall 58 of the summing bowl 12, the receiving member 52 and the striker 51 are integrally coupled to the summing bowl 12. . A known coupling method such as screw fastening or adhesion may be applied to the coupling between the receiving member 52 and the summoning bar 12. With the above configuration, the left end portion 53 of the receiving member 52 extends to the left from the left side wall 57 of the sump 12. In addition, since the receiving member 52 and the striker 51 are thin in the front-rear direction, when the left window 3 and the right window 4 are moved relative to each other, they contact the summing bar 19, the door toe 18, and the plate glass 23 of the right window 4. There is no. Further, the receiving member 52 does not come into contact with the pressing end portion 45 of the pressing member 33 in the initial position.

  As shown in FIGS. 1 and 2, the engagement and release of the crescent 37 and the striker 51 are selectively switched by the rotation of the operation lever 32. As shown in FIG. 2, in a state where the grip portion 38 of the operation lever 32 is positioned below the rotation axis of the operation lever 32, the crescent 37 is separated from the striker 51 and the engagement is released. This state is called an unlocked state. When the operation lever 32 is rotated from the unlocked state so that the grip portion 38 is disposed above the rotation axis of the operation lever 32 as shown in FIG. 1, the crescent 37 engages with the striker 51. The crescent 37 and the striker 51 are engaged with each other. This state is called a locked state. In the locked state, the relative movement of the left window 3 and the right window 4 is restricted, and the opening of the sash window 2 is prohibited.

  Next, with reference to FIGS. 6-8, operation | movement of the opening assistance apparatus 1 which concerns on 1st Embodiment is demonstrated. As shown in FIG. 6, from the unlocked state where the crescent 37 and the striker 51 are separated from each other, the user grips the grip portion 38, and the operation lever 32 moves downward with respect to the rotation axis of the operation lever 32. When rotated in the direction (clockwise direction in FIG. 6, arrow 70), the cam surface 39 of the operation lever 32 moves the curved surface 47 of the pressed end portion 46 of the pressing member 33 forward as shown in FIG. 7. Press. As a result, the pressing member 33 rotates in the rotational direction (counterclockwise direction in FIG. 7, arrow 71) in which the pressing end 45 protrudes forward from the initial position against the urging force of the torsion coil spring 48. . The cam surface 39 rotates the pressing member 33 forward while sliding on the curved surface 47 of the pressing member 33. That is, the operation lever 32 drives the pressing member 33.

  When the rotation of the operation lever 32 (the rotation direction of the arrow 70 in FIG. 6) proceeds, the pressing end 45 of the pressing member 33 contacts the left end 53 of the receiving member 52 from the left, and the pressing end 45 is the receiving member. Press 52 to the right. As a result, the left window 3 moves relative to the right window 4 to the right.

  The opening assisting device 1 configured as described above drives the pressing member 33 by rotating the operation lever 32, presses the summing bar 12 of the left window 3 by the pressing member 33, and moves the left window 3. The right window 4 can be moved relative to the right. Since the rotation operation of the operation lever 32 at this time is the rotation operation in the same direction as the operation for releasing the engagement between the crescent 37 and the striker 51, the sash window is operated by one operation of rotating the operation lever 32. Following the unlocking of 2, the sash window 2 can be opened.

  Further, in the opening assist device 1, the pressing member 33 is configured not to protrude forward (retracted rearward) from the summing bar 19 of the right window 4 at the initial position, so that the left window 3 and the right window 4 are relative to each other. When moving, the pressing member 33 does not contact the left window 3 and does not interfere with the relative movement of the left window 3 and the right window 4. Therefore, the left window 3 and the right window 4 can move to a position where they overlap each other in the front-rear direction, or to a position where the right window 4 is displaced to the left of the left window 3. In the present embodiment, the pressing member 33 is disposed at a position where it does not protrude forward from the summing bowl 19 at the initial position. However, even if the pressing member 33 protrudes forward from the summing bowl 19, the front end of the pressing member 33 is disposed. If the portion (pressing end 45) is arranged behind the summing bowl 12, the receiving member 52 and the door-end fence 11 of the left window 3, and a gap is formed between them, the pressing member 33 is on the left The movement of the window 3 is not hindered.

(Second Embodiment)
The opening assist device 100 according to the second embodiment differs from the opening assist device 1 according to the first embodiment in the configurations of the base member 31, the pressing member 33, and the receiving member 52. About the opening assistance apparatus 100, about the structure similar to the opening assistance apparatus 1, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  As shown in FIG. 9, the base member 101 of the opening assisting device 100 is attached to the left end surface 25 of the summing bar 19 of the right window 4 on the right side, and receives continuously from the left side to the front side. Is recessed. Guide rails 103 projecting to the left are provided on the upper and lower edges of the receiving hole 102. Each guide rail 103 is formed with a guide slot 104 extending in the left-right direction.

  The pressing member 106 includes a cylindrical base 107 that extends in the left-right direction. The base 107 is formed in a size that can enter the receiving hole 102. Guide protrusions 108 project from the upper and lower portions of the base 107, and when the guide protrusion 108 engages with the guide slot 104, the base 107 is predetermined in the left-right direction with respect to the receiving hole 102. It is supported to be able to invade in the range of. The position when the pressing member 106 is at the leftmost position (the position that protrudes most from the receiving hole 102) is the initial position, and the position when it is at the rightmost position (the position that is most immersed in the receiving hole 102) is the post-drive position. .

  The base 107 is closed at the left end and receives one end of the compression coil spring 110 inside. The other end of the compression coil spring 110 is in contact with the bottom of the receiving hole 102. Thereby, the pressing member 106 is urged to the initial position by the compression coil spring 110.

  A pressed end 109 that protrudes rearward is formed at the left end of the base 107. The tip end of the pressed end 109 is formed into a smooth curved surface. As will be described later, the pressed end 109 is pressed against the cam surface 39 of the operation lever 32 when the operation lever 32 is rotated.

  In the opening assisting device 100, instead of the receiving member 52 combined with the striker 51 of the opening assisting device 1, the striker 111 and the receiving member 112 are separated from each other as shown in FIG. It is provided on the mating bar 12. The striker 111 has an engaging portion similar to the striker 51, and is bolted to the summing rod 12 so that the engaging portion protrudes to the left from the summing rod 12.

  The receiving member 112 is supported by the summoning tub 12 via the holder 113. The holder 113 is formed in a plate shape extending in the left-right direction, the right end is bolted to the summing bar 12, and the left end extends leftward from the summing bar 12. A pair of opposing support pieces 114 projecting rearward are formed on the upper and lower portions of the left end portion of the holder 113. Both support pieces 114 are formed with support holes 115 penetrating in the vertical direction. In addition, a locking hole 116 penetrating in the vertical direction is formed on both support pieces 114 to the left of the support hole 115.

  The receiving member 112 is a plate-like member, and has a shaft 117 that protrudes from one side (base end side) of the upper end surface and the lower end surface. Each shaft 117 is rotatably received in the support hole 115 of the holder 113, so that the receiving member 112 is rotatably supported by the holder 113. The receiving member 112 is rotatable between a first position where the tip end portion (free end portion) faces leftward and a second position where the tip end portion faces rearward. That is, the receiving member 112 has a rotation range of approximately 90 °. In the first position, the rotation range is regulated by the main surface of the receiving member 112 coming into contact with the holder 113, and in the second position, the regulating wall 118 protruding from the main surface of the receiving member 112 is the holder 113. The rotation range is regulated by abutting on.

  A torsion coil spring 119 is interposed between the receiving member 112 and the holder 113, and the receiving member 112 is urged by the torsion coil spring 119 in the rotational direction from the first position to the second position. Further, locking projections 120 that are locked to the locking holes 116 of the holder 113 at the first position protrude from the upper end surface and the lower end surface of the receiving member 112. When the locking protrusion 120 is locked in the locking hole 116, the receiving member 112 is held in the first position against the urging force of the torsion coil spring 118.

  A notch 121 extending toward the proximal end is formed at the distal end of the receiving member 112. By this notch 121, the front end of the receiving member 112 is bifurcated.

  As shown in FIGS. 11 and 12, in the second position, the receiving member 112 protrudes rearward from the front side surface of the summing bar 19 of the right window 4. In the closed state of the sash window 2 in which the summing rods 12 and 19 of the windows 3 and 4 face each other, the receiving member 112 is disposed between the base 107 and the base member 101 of the pressing member 106 in the left-right direction. Further, the compression coil spring 110 is disposed in the notch 121 of the receiving member 112.

  The base member 101 is formed with a protruding piece 122 that protrudes forward. As will be described later, the projecting piece 122 is provided in order to contact the receiving member 112 and displace the position.

  With reference to FIGS. 12-14, operation | movement of the opening assistance apparatus 100 is demonstrated. By rotating the operation lever 32, the crescent 37 and the striker 111 are selected between the unlocked state and the unlocked state, similarly to the opening assisting device 100. When the operating lever 32 is rotated in a direction in which the grip portion 38 is directed downward with respect to the rotation axis of the operating lever 32, the cam surface 39 of the operating lever 32 is pressed against the pressed end portion 109 of the pressing member 106 as shown in FIG. Press to the right. Accordingly, the pressing member 106 is displaced rightward from the initial position to the post-drive position against the urging force of the compression coil spring 110. The cam surface 39 displaces the pressing member 106 to the right while sliding on the pressed end 109. That is, the operation lever 32 drives the pressing member 106.

  At this time, the base 107 of the pressing member 106 presses the receiving member 112 to the right. Since the rotation of the receiving member 112 is restricted by the restriction wall 118, the receiving member 112 maintains the posture with respect to the holder 113 even when pressed by the pressing member 106. As a result, the left window 3 coupled to the holder 113 is displaced to the right with respect to the right window 4. That is, the left window 3 is opened.

  As shown in FIG. 13, when the displacement of the left window 3 to the right with respect to the right window 4 proceeds, the receiving member 112 comes into contact with the protruding piece 122 of the base member 101. When the displacement of the left window 3 to the right with respect to the right window 4 further proceeds from this state, the receiving member 112 is pressed by the projecting piece 122 and resists the biasing force of the torsion coil spring 119 from the second position to the first position. Rotate to position. As a result, as shown in FIG. 14, the receiving member 112 can avoid the protruding piece 122 and the sump 19, and does not hinder the displacement of the left window 3 to the right with respect to the right window 4. When the receiving member 112 reaches the first position, the locking projection 120 of the receiving member 112 is locked in the locking hole 116 of the holder 113, and the receiving member 112 is held in the first position.

  When the left window 3 is displaced to the left with respect to the right window 4 from the state in which the left window 3 is on the right side with respect to the right window 4 (open state) as shown in FIG. A sufficient load is applied to the receiving member 112 so that the locking projection 120 is detached from the locking hole 116. As a result, the locking projection 120 is detached from the locking hole 116, and the receiving member 112 is displaced to the second position by the biasing force of the torsion coil spring 119. That is, returning to the state of FIG. 12, the receiving member 112 returns to a position where it can be pressed by the pressing member 106.

  Although the description of the specific embodiment is finished as described above, the present invention is not limited to the above embodiment and can be widely modified. In the present embodiment, the receiving member 52 is a separate member from the summoning bowl 12, but in other embodiments, the receiving member 52 may be configured as a part of the summing bowl 12.

  DESCRIPTION OF SYMBOLS 1,100 ... Opening auxiliary device, 3 ... Left window, 4 ... Right window, 12, 19 ... Summoning bowl, 25 ... Left end surface, 31, 101 ... Base member, 32 ... Operation lever, 33, 106 ... Pressing member, 37 ... Crescent, 44 ... Base, 45 ... Pressed end, 46 ... Pressed end, 51, 111 ... Striker, 52, 112 ... Receiving member, 53 ... Left end, 102 ... Receiving hole, 104 ... Guide slot, 109 ... Pressed end part, 113 ... Holder, 116 ... Locking hole, 118 ... Restriction wall, 120 ... Locking protrusion, 122 ... Projection piece

Claims (7)

An opening assist device for assisting initial operation when opening the sliding door from the closed position,
A support member provided to face the door butt of the sliding door in the closed position;
An operation member supported by the support member so as to be displaceable and operated by an operator when opening the sliding door;
A pressing member which is supported by the supporting member so as to be displaceable, is driven according to the displacement of the operation member, is displaced between an initial position and a post-driving position, and presses the door bottom in the opening direction of the sliding door; Have
In the initial position, the pressing member is disposed apart from the sliding door so as not to come into contact with the sliding door when the sliding door opens and closes. The door butt portion includes a sump that protrudes toward the support member so as to form a stepped portion,
The opening assisting device according to claim 1, wherein the pressing member presses the summoning basket in an opening direction from a direction along an opening / closing direction of the sliding door.   The opening assisting device according to claim 2, wherein a pressed portion that is pressed by the pressing member is provided on the summing bowl so as to protrude in a closing direction along the surface of the sliding door.   The opening assisting device according to claim 2 or 3, wherein the pressing member is supported by the support member so as to be rotatable between the initial position and the post-drive position.   The pressing member includes a base that extends in a radial direction of the rotating shaft, a pressing end that protrudes from the tip of the base to one side in a tangential direction centering on the rotating shaft, and presses the summing rod. And a pressed end that protrudes to the other side in the tangential direction and is pressed by the operating member, and the protruding length of the pressed end from the tip of the base is the base of the pressed end The opening assisting device according to claim 4, wherein the opening assisting device is longer than a protruding length from the tip of the opening. The door butt portion is rotatably supported between a first position extending along an opening / closing direction of the sliding door and a second position extending in a standing state with respect to the main surface of the sliding door. A pressed member and a biasing member that biases the pressed member to the second position;
When the pressed member is positioned at the second position, the pressed member is pressed to the side opposite to the first position by the pressing member driven by the operation member, and displaces the sliding door in the opening direction. 2. The sliding door according to claim 1, wherein when the sliding door moves in the opening direction, the sliding door is pressed against the supporting member and displaced from the second position to the first position against the urging force of the urging member. The opening assistance device as described. The door bottom has a holder in which a locking hole is formed,
The support member has a protruding piece that protrudes toward the door bottom side,
The pressed member includes a locking projection that is locked to the locking hole when positioned at the first position, and the protruding piece when the sliding door is changed from the opened state to the closed position. An engaging projection that abuts against the urging member, and is held in the first position against the urging force of the urging member when the locking projection is locked in the locking hole, and the sliding door is opened. When the engagement protrusion is pressed against the projecting piece when changing from the closed state to the closed position, the second structure is released while releasing the engagement structure between the engagement protrusion and the engagement hole. 7. The opening assist device according to claim 6, wherein the opening assist device rotates to a position.

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