JP5368813B2 - Forward movement mechanism of rotating body - Google Patents

Abstract

A reciprocation mechanism for a pivoting body, is provided with an arm body pivotally provided to a door and having a striker provided to the free end side of the arm body, a receiving member provided to a door frame so as to be slidable between a first position and a second position in the direction intersecting the direction of pivoting of the door, and a pressing means for pressing the receiving member toward the second position. The receiving member is adapted so as to be held at the first position while resisting the above pressing section and, after capturing the striker at the first position in the process of closing the door, to be released from being held at the first position and moved to the second position by the above pressing action.

Description

  The present invention relates to a forward movement mechanism that functions to assist (assist) the forward movement of a rotating body that is forwardly rotated toward a predetermined position from the middle of the forward movement to a predetermined position. Regarding improvements.

  A striker body provided on the door and a catcher provided on the door frame and capturing the striker body moved from the front side when the door is operated toward the closed position, and the catcher is placed in the standby position. Patent Document 1 discloses a mechanism that assists in closing the door by capturing the striker body at the standby position and rotating it forward to the wrapping position. There is something to be done.

  However, since the thing of this patent document 1 requires rotation of a catcher, the depth of the mechanism in the direction along the rotation direction of a door, specifically, the case which supports this catcher. There was a limit to reducing the width.

International Publication No. 2007/055544

  The main problem to be solved by the present invention is that a mechanism for assisting the forward movement of this type of rotating body can be configured as compactly as possible.

In order to achieve the above object, according to the present invention, the forward movement mechanism of the rotating body is rotatably provided to either the rotating body or the fixed body that rotatably supports the rotating body. An arm body with a striker on the free end side;
A receiving member provided on the other of the rotating body and the fixed body so as to be slidable across the first position and the second position in a direction crossing the rotating direction of the rotating body;
Urging means for urging the receiving member toward the second position,
The receiving member is configured to be held at the first position against the biasing, and after the striker is captured at the first position in the course of the forward movement of the rotating body, the holding is released and the holding member is released. It was supposed to be moved to the second position by urging.

  Since the arm body is provided so as to be rotatable, even if the sliding movement direction of the receiving member intersects the rotating direction of the rotating body, the movement of the receiving member toward the second position by the urging means is performed. The rotating body can be moved forward in conjunction with. That is, after the striker is captured by the receiving member, the rotating body is rotated by the receiving member slidably moved as described above by rotating the arm body in accordance with the sliding movement amount toward the second position of the receiving member. It can be moved forward and backward. Since the receiving member is slid and moved in the direction crossing the rotating direction of the rotating body, the arrangement space of the receiving member in the rotating direction of the rotating body can be minimized. The receiving member can be appropriately provided on the frame without impairing the appearance.

  In such a mechanism, if the striker is provided with a guide means for guiding the striker to the catching portion of the receiving member at the first position, the striker is smoothly caught by the catching portion in the course of the forward movement of the rotating body. can do.

As a preferred form, in such a mechanism, the striker capturing body is assembled to the receiving member so as to be rotatable between a hooking position where the striker is hooked and a non-hooking position where the striker is not hooked.
The catching body and the support member support body simultaneously hold the receiving member in the first position and the catching body in the non-engagement position, and the catcher engagement is triggered by the striker contact. A holding means for allowing rotation to a position and releasing the holding of the receiving member by this rotation is provided.

  Further, in this mechanism, if the urging means is arranged adjacent to the receiving member on the moving axis of the receiving member, the installation space of the mechanism on the receiving member side in the rotating direction of the rotating body is minimized. Can contribute.

  Further, in such a mechanism, if the free end side of the arm body is bent so that the rotation center side of the rotating body is inside the bending, the receiving member releases the striker when the rotating body moves backward. In the meantime, the striker can be moved as linearly as possible, and the return of the receiving member to the first position can be performed smoothly.

  Moreover, as one preferable form, the said arm body is comprised by the 2 or more arm structure body combined so that rotation was mutually possible.

  In this invention, the striker is provided on the rotatable arm body, and the receiving member that captures the striker is slid in the direction crossing the rotating direction of the rotating body, thereby moving the rotating body forward. Since the assist is performed, it is possible to reduce the depth of the mechanism in the direction along the rotation direction of the rotating body as much as possible.

FIG. 1 is a perspective configuration diagram showing a utilization state of the forward movement mechanism R according to the first example. FIG. 2 is a bottom view of the forward movement mechanism R according to the first example, and the receiving member 3 is in the first position. FIG. 3 is a bottom view of a main part of the main body 5 in which the bottom plate portion 5d, the front plate portion 5a, and the rear plate portion 5b are omitted and the members housed in the main body 5 such as the receiving member 3 are omitted. is there. FIG. 4 is an enlarged configuration diagram of a main part of FIG. FIG. 5 is a bottom view showing a state in which the striker 1 is positioned in the inclined portion 9 c of the guide groove 9 b of the guide means 9 of the main body 5. FIG. 6 is a bottom configuration diagram showing a state where the striker 1 is positioned in the straight portion 9d of the guide groove 9b of the guide means 9 of the main body 5. FIG. 7 is an enlarged view of the main part showing the main part of the forward movement mechanism R in the state of FIG. 6 as in FIG. FIG. 8 is an enlarged view of the main part showing the main part of the forward movement mechanism R in the state where the capturing body 6 is rotated from the state of FIG. FIG. 9 is a bottom view of the forward movement mechanism R according to the first example when the receiving member 3 is in the second position. FIG. 10 is a perspective configuration diagram of the main body 5 in which the receiving member 3 and the like are housed. (The receiving member 3 is in the second position) FIG. 11 is a perspective configuration diagram showing members housed in the main body 5 such as the receiving member 3 by omitting the bottom plate portion 5d, the front plate portion 5a, and the rear plate portion 5b of the main body 5 from the state of FIG. FIG. 12 is a perspective configuration diagram of the main body 5 and the channel member 10 separated from each other when viewed from the top plate portion 5 c side of the main body 5. FIG. 13 is a perspective configuration diagram of the striker 1 and the arm body 2 constituting the forward movement mechanism R according to the first example. FIG. 14 is an exploded perspective view of the striker 1 and the arm body 2 of FIG. FIG. 15 is a longitudinal sectional configuration diagram of the forward movement mechanism R according to the second example, and the receiving member 3 is in a first position. FIG. 16 is an enlarged view of a main part of FIG. FIG. 17 is a bottom view of the main part of the part shown in FIG. 16 as viewed from below. FIG. 18 is an enlarged view of the main part showing the state immediately after the striker 1 is brought into contact with the receiving member 3 in the first position, similar to FIG. FIG. 19 is a longitudinal sectional configuration diagram of the forward movement mechanism R according to the second example, and the receiving member 3 is in a second position. FIG. 20 is an enlarged view of a main part of FIG. FIG. 21 is a bottom view of the main part of the part shown in FIG. 20 as viewed from below. FIG. 22 is an exploded perspective view of the receiving member 3 constituting the forward movement mechanism R according to the second example. FIG. 23 is a cutaway side view of the main part of the receiving member 3. FIG. 24 is a perspective configuration diagram of the striker 1 and the arm body 2 constituting the forward movement mechanism R according to the second example. FIG. 25 is an exploded perspective view of the striker 1 and the arm body 2 shown in FIG.

  A typical embodiment of the present invention will be described below with reference to FIGS.

  Here, FIGS. 1 to 14 show a first example of the forward movement mechanism R configured by applying the present invention. 15 to 25 show a second example of the forward movement mechanism R configured by applying the present invention.

  The forward movement mechanism R of the rotating body M according to this embodiment assists the forward movement of the rotating body M that is moved forward toward a predetermined position from the middle of the forward movement to the predetermined position ( Function).

  The rotating body M is supported by the fixed body F so as to be able to rotate forward and backward, and typically includes a door, a hinged door, and the like. As long as it is supported so as to be able to rotate backward, it is not limited thereto. In the illustrated example, an example is shown in which the forward movement mechanism R is provided on the door Ma and the door frame Fa.

  In the illustrated example, the door Ma as the rotating body M is in the closed position (predetermined position) in which the front face Mc is brought into contact with the door contact portion Fb of the door frame Fa as the fixed body F during forward movement. The inner opening of Fa is closed. (FIG. 9) When the door Ma as the rotating body M is moved forward from the open position not closing the opening (FIGS. 1 and 2) toward the closed position, the process of the forward movement is performed. Then, the striker 1 constituting the forward movement mechanism R comes into contact with the receiving member 3 constituting the forward movement mechanism R (FIGS. 6 and 18), and the action of the forward movement mechanism R is received to such a closed position. Yes.

  In the illustrated example, the striker 1 is attached to the door Ma as the rotating body M. Accordingly, in the illustrated example, the receiving member 3 is provided on the side of the door frame Fa as the fixed body F. In addition, even if the striker 1 is attached to the side of the door frame Fa as the fixed body F and the receiving member 3 is provided on the door Ma side as the rotating body M separately from the example shown in the drawing, The movement can be assisted from the middle.

  In the illustrated example, the striker 1 is positioned by the arm body 2 in front of the first surface Mc that becomes the head when the door Ma moves forward. More specifically, in the illustrated example, the striker 1 is provided on the upper end side of the door Ma on the door hinge Mb side of the door Ma. The striker 1 is configured as a shaft-like body protruding upward from the free end 2 a of the arm body 2. The upper end of the striker 1 is positioned at a level that is substantially the same as or slightly lower than the upper end of the door Ma, and the receiving member 3 provided in the frame upper part Fc of the door frame Fa is in the forward movement toward the closed position of the door Ma. The door Ma is captured immediately before it is completely closed. The arm body 2 is positioned below the level of the lower surface of the main body 5 (described later) that houses the receiving member 3 so as to be slidable, and is pivotally assembled to the door Ma at its base end 2b.

  On the other hand, the receiving member 3 is provided so as to be slidable between the first position and the second position in a direction crossing the rotational direction y of the rotating body M. The receiving member 3 is urged toward the second position by the urging means 4 when it is in the first position. Further, the receiving member 3 is configured to be held at the first position against the urging, and the striker 1 is moved at the first position in the course of the forward movement of the door Ma as the rotating body M. After being captured, this holding is released and moved to the second position by the urging force. In the illustrated example, the receiving member 3 is provided on the frame upper portion Fc of the door frame Fa so as to be slidable in the left-right direction crossing the rotation direction of the door Ma (that is, the front-rear direction). In the illustrated example, the striker 1 comes into contact with the capturing body 6 of the receiving member 3 at the first position immediately before the door Ma is fully closed during the forward movement of the door Ma. When the striker 1 comes into contact with the capturing body 6, in the first example shown in FIGS. 1 to 14, the capturing body 6 in the non-engaging position rotates to the engaging position, and FIGS. In the second example shown, the catching body 6 in the non-engagement position is retracted to the engagement position to catch the striker 1, and the holding is released and the receiving member 3 is brought into the second position together with the striker 1 by the biasing. To be moved to. As a result, the door Ma is subjected to the action of the forward movement mechanism R to the closed position (predetermined position).

  Since the arm body 2 is rotatably provided, even if the sliding movement direction of the receiving member 3 intersects the rotational direction y of the rotating body M, the second of the receiving member 3 by the biasing means 4 is provided. The rotating body M can be moved forward in conjunction with the movement toward the two positions. That is, after the striker 1 is captured by the receiving member 3, the receiving member is slid and moved as described above by rotating the arm body 2 in accordance with the sliding movement amount toward the second position of the receiving member 3. 3, the rotating body M can be moved forward and backward. Since the receiving member 3 is slid in the direction crossing the rotation direction y of the rotating body M, the arrangement space of the receiving member 3 in the rotating direction y of the rotating body M can be minimized. Typically, the receiving member 3 can be appropriately provided on the door frame Fa without impairing the appearance.

  In the illustrated example, until the receiving member 3 is captured, the widest gap is formed between the striker 1 and the front surface Mc when the door Ma moves forward. In the illustrated example, this state is maintained by torsion coil springs 2f and 2q described later. When the striker 1 is captured by the receiving member 3 and the receiving member 3 is moved toward the second position, the closer the receiving member 3 is to the second position, the closer the striker 1 is between the one surface Mc and the striker 1. The arm body 2 is rotated against the biasing of the springs 2f and 2q so as to narrow the interval. More specifically, in the illustrated example, after the striker 1 is captured, the receiving member 3 is slid in a direction toward the door hinge Mb, and the arm body 2 is also rotated in a direction to bring the striker 1 closer to the door hinge Mb. It has become.

(First example)
In the forward movement mechanism R according to the first example shown in FIGS. 1 to 14, the striker 1 is provided at a free end 2 a of a single arm body 2. The striker 1 is combined with the free end 2a of the arm body 2 so as to be movable up and down, and is moved downward against the bias of the compression coil spring 2g built in the free end 2a of the arm body 2, that is, the arm The arm body 2 is provided with a variable projecting dimension from the free end 2a of the body 2. Thus, in this first example, when the receiving member 3 is moved to the second position due to a malfunction in a state where the door Ma is not moved forward to the closed position as described later, the door Ma is moved to the closed position. By moving forward, the striker 1 can get over the striker 1 between the auxiliary engagement portion 6g of the capturing body 6 rotated to the engagement position and the moving end 6c, and the striker 1 can be engaged with the auxiliary engagement portion 6g. It is like that.

  In this first example, a horizontal plate portion 2i and a vertical plate portion 2j are provided, and the vertical plate portion 2j is attached to one surface Mc of the door Ma by fixing the horizontal plate portion 2i to the upper end surface of the door Ma. With the mounting bracket 2h provided as described above, the arm body 2 is rotatably provided on the door Ma. An ear portion 2k is formed at the lower end of the vertical plate portion 2j of the mounting bracket 2h so as to protrude laterally outward from the vertical plate portion 2j, and is passed through a shaft hole 2c formed at the base end 2b of the arm body 2. The arm member 2 is rotated around the shaft component 2d by the shaft component 2d fixed to the ear 2k. (FIGS. 13 and 14)

  In this first example, one end of a torsion coil spring 2f wound around the shaft component 2d is fixed to the shaft component, and the other end of the spring is fixed to the arm body 2, and the shaft A positioning portion 2e that is abutted against the vertical plate portion 2j of the mounting bracket 2h is formed behind the hole 2c by the bias of the spring 2f, and the spring 2f and the positioning portion 2e are used to move forward in the striker 1 and the door Ma. The basic posture (posture in FIG. 2) of the arm body 2 having the widest space between the leading surface Mc is sometimes maintained.

  Further, in this first example, the free end 2a side of the arm body 2 is bent so that the rotation center side of the rotation body M, that is, the door hinge Mb side of the door Ma is the bending inner side. That is, the arm body 2 is configured to be straight from the base end 2b to the middle, and is curved on the free end 2a side so that the free end 2a is closer to the door hinge Mb than the base end 2b in the basic posture. . When the door Ma as the rotating body M is moved backward or opened from the closed position (position in FIG. 9 / predetermined position), the receiving member 3 resists the urging force of the urging means 4 by the movement of the striker 1 associated therewith. The slide is moved to the first position, and the striker 1 is released and held again. However, if the free end 2a side of the arm body 2 is curved in this way, the receiving member 3 is required to release the striker 1. During this time, the striker 1 can be moved as linearly as possible, and the return of the receiving member 3 to the first position can be performed smoothly.

  In this first example, the receiving member 3 is supported by the main body 5 so as to be slidable, and is attached to a door frame Fa as a fixed body F via the main body 5.

  Further, the catcher 6 of the striker 1 is assembled to the receiving member 3 so as to be able to rotate between the engaging position where the striker 1 is engaged and the non-engaging position where the striker 1 is not engaged. At the same time, the capturing body 6 and the main body 5 as the support body of the receiving member 3 are simultaneously held in a state where the receiving member 3 is in the first position and a state where the capturing body 6 is in the non-engagement position. There is provided holding means 7 for allowing the capturing body 6 to rotate to the engagement position triggered by the contact of 1 and releasing the holding of the receiving member 3 by this rotation.

  The receiving member 3 is firstly held by the holding means 7 against the urging of a tension coil spring 4a as the urging means 4 described later in the main body 5 until the capturing body 6 is brought into contact with the striker 1. (FIGS. 2 and 3) Secondly, when the catcher 6 is brought into contact with the striker 1, the striker 1 is captured by the catcher 6 that is rotated to the engaging position. The holding is released and the tension coil spring 4a is biased so as to be forcibly moved to the second position, in the illustrated example, a position close to the door hinge Mb. (FIG. 9) Thus, in this first example, when the door Ma serving as the rotating body M is operated forward, the striker 1 operates as described above from the position where the striker 1 contacts and is captured by the capturing member 6 in the receiving member 3. The forward movement of the door Ma is assisted by the receiving member 3 to the closed position as a predetermined position. In this first example, the assisted forward movement of the door Ma is made slow by the braking force of the braking means 8 described later, and the door Ma makes a loud noise, It does not return in the opening direction due to the reaction force when it hits the part Fb.

  Thus, when the door Ma as the rotating body M moved forward to a predetermined position is operated backward, the receiving member 3 capturing the striker 1 by the capturing body 6 resists the bias of the tension coil spring 4a, That is, while the tension coil spring 4a stores energy, the main body 5 is moved to the first position, and when the first position is reached, the holding means 7 holds the main body 5 again, and the capturing body 6 is moved to the non-engagement position. The striker 1 is released by rotating. And by this release, the door Ma is allowed to return to a desired position.

  Specifically, the main body 5 as a support for the receiving member 3 is provided so as to form a part of the door contact portion Fb on the frame upper portion Fc of the door frame Fa. That is, the main body 5 is configured to form a case shape that is elongated in the left-right direction, and includes a front plate portion 5a that is positioned on the side that becomes the door stop portion Fb, and a rear plate portion 5b that faces the front plate portion 5a. The top plate portion 5c and the bottom plate portion 5d are provided. Further, both left and right ends of the main body 5 are closed. In the illustrated example, the main body 5 is housed in a channel material 10 having a U-shaped cross section, and the front plate portion 5a, the rear plate portion 5b, and the top plate portion 5c are covered with the channel material 10 and the main body 5 The main body 5 is attached to the frame upper part Fc by fixing both left and right ends to the frame upper part Fc of the door frame Fa via the channel material 10.

  The receiving member 3 is shorter than the main body 5 and has a width that fits in a small space between the front plate portion 5a and the rear plate portion 5b of the main body 5 and can slide in the left and right directions within the main body 5. It is stored in. In the first position, the right end 3a in FIG. 2 opposite to the door hinge Mb side of the receiving member 3 and the right end inner surface of the main body 5 are close to each other, and the left end 3b of the receiving member 3 and the left end inner surface of the main body 5 are close to each other. The widest gap is formed between them. (Figure 2)

  In the example shown in the figure, the receiving member 3 has a built-in portion 3c of the braking means 8 between the position approximately in the middle of the length direction and the right end 3a, and from the position approximately in the length direction to the left end 3b. The capture body 6 is rotatably provided between the two. A tension coil spring 4 a serving as the biasing means 4 is disposed between the left end 3 b of the receiving member 3 and the left end of the main body 5. That is, in the illustrated example, the urging means 4 is disposed adjacent to the receiving member 3 on the movement axis x (FIGS. 3 and 11) of the receiving member 3, and this also rotates the rotating body M. The installation space of the mechanism on the receiving member 3 side in the moving direction y is minimized.

  In the illustrated example, the braking means 8 includes a cylinder 8b, a piston (not shown), and a piston rod 8c, and is constituted by a piston damper 8a configured to apply a braking force to the movement or relative movement of the piston. ing. In the illustrated example, the piston damper 8a has the cylinder 8b mounted and fixed to the mounting portion 3c of the receiving member 3 so that the piston rod 8c side protrudes to the left side, and the protruding end of the piston rod 8c is connected to the main body. 5 is fixed between the main body 5 and the receiving member 3 by being fixed to a fixing portion 5e formed at a substantially middle position in the length direction. When the receiving member 3 is in the first position, the piston rod 8c protrudes from the cylinder 8b. (FIG. 2) Thereby, when the receiving member 3 is slid by the urging means 4 from the first position toward the second position, the piston rod 8c is pushed into the cylinder 8b. The above-mentioned braking force is applied to the sliding movement of the door and the forward movement of the door Ma to the closing position.

  The capturing body 6 is rotatably provided on the receiving member 3 with a vertical shaft 6a. In the illustrated example, the capturing body 6 is combined with the receiving member 3 by inserting the vertical shaft 6 a into a shaft hole 3 d provided in the receiving member 3 below the receiving member 3. The capturing body 6 is opened between the base end 6b provided with the vertical shaft 6a and the moving end 6c on the front plate portion 5a side of the main body 5 and is recessed rearward. Are provided with a catching recess 6d of the striker 1 that is open together. In the illustrated example, when the receiving member 3 is in the first position, the left and right side walls 6e, 6e of the catching recess 6d have an acute angle toward the right end 3a side of the receiving member 3 with respect to the movement axis x of the receiving member 3. (FIG. 3, FIG. 4, FIG. 7 / that is, the non-engagement position) The process of moving the door Ma to the closed position on the left side wall 6e of the capture recess 6d of the capture body 6 in this non-engagement position The striker 1 is brought into contact with the guide means 9 described later. When the striker 1 is abutted in this way, the capturing body 6 is rotated in a direction in which the left and right side walls 6e and 6e of the capturing recess 6d are orthogonal to the movement axis x of the receiving member 3 (FIG. 8 / ie Engagement position) The striker 1 enters the inner back part 6f of the catching recess 6d, and the holding means 7 is released and the sliding movement of the receiving member 3 toward the second position is started.

  In the illustrated example, guide means 9 for guiding the striker 1 to the capturing body 6 of the receiving member 3 in the first position is formed on the front plate portion 5a and the bottom plate portion 5d of the main body 5. In the illustrated example, the guide means 9 includes an introduction opening 9a that cuts off the front plate portion 5a of the main body 5, and a guide groove 9b formed in the bottom plate portion 5d. The channel material 10 is formed with a notch 10a corresponding to the introduction opening 9a. The guide groove 9b communicates with the introduction opening 9a and extends obliquely to a position approximately in the middle of the main body 5 in the width direction. And a straight portion 9d extending straight toward the left end side of the main body 5. The inclined portion 9c is inclined so as to approach the left end of the main body 5 as it approaches the communication side with the straight portion 9d. In the illustrated example, when the receiving member 3 is in the first position, the capturing body 6 in the non-engagement position is connected to the introduction opening 9a at the communication portion between the straight portion 9d and the inclined portion 9c in the guide means 9. It is arranged with the 6d entrance facing. (FIG. 4) Thus, in the process of moving the door Ma toward the closed position, the striker 1 is guided by the inclined portion 9c of the guide means 9 so that the striker 1 enters the capture recess 6d of the capture body 6. ing. Then, when the striker 1 enters the catching recess 6d of the catching body 6, the catching body 6 is rotated to the engaging position, and the slide toward the second position of the receiving member 3 is started as a trigger. 1 is moved to the door hinge Mb side while rotating the arm body 2 along the straight portion 9d of the guide means 9 via the capturing body 6 as described above, and thereby the door Ma is moved to the closed position. It has become. In the first example, a front wall portion 3e protruding downward is formed at the lower portion of the receiving member 3, and a capturing body 6 is provided behind the front wall portion 3e, and the front wall portion 3e is also not engaged. A notch 3f that guides the striker 1 and functions as the guide means 9 is formed in the catching recess 6d of the catching body 6 in the above. When the capturing body 6 is rotated to the engagement position, the front wall 3e positioned on the left side of the notch 3f is positioned in front of the entrance of the capturing recess 6d. Even if the guide means 9 is not provided, the engagement state between the capturing body 6 and the striker 1 is not released in the process of movement of the receiving member 3 toward the second position.

  In this first example, the holding means 7 includes a sliding contact portion 7 a formed between the capturing recess 6 d of the capturing body 6 and the moving end 6 c and a sliding contact formed on the top plate portion 5 c of the main body 5. It is comprised from the cam groove 7b with respect to the part 7a.

  The sliding contact portion 7 a is configured to have a protruding shape that protrudes from the upper surface of the capturing body 6. The receiving member 3 is formed with a window hole 3g for projecting the sliding contact portion 7a onto the upper surface of the member 3.

  The cam groove has a groove width in which the slidable contact portion 7a is accommodated and accommodates and guides the slidable contact portion 7a, and the length side groove portion 7c that extends straight along the moving direction of the receiving member 3, and the length side groove portion. A width side groove portion 7d extending rearward by forming a corner 7f between the right end of 7c is provided. The width side groove 7d extends obliquely so as to approach the left side, that is, the urging direction of the urging means 4 as it goes rearward from the corner 7f.

  Thus, in the illustrated example, when the capturing body 6 has the sliding contact portion 7a inserted into the width side groove portion 7d of the cam groove 7b, the rear end of the width side groove portion 7d is biased by the biasing means 4. The sliding contact portion 7a is positioned at the non-engagement position by 7e, and the sliding contact portion 7a is caught in the width side groove portion 7d by the biasing means 4, and the receiving member 3 is held in the first position. The From this state, when the door Ma is moved forward toward the closed position, it is guided by the guide means 9 and the striker 1 hits the left side wall 6e (FIG. 7) of the catching recess 6d as described above. Is located on the vertical axis 6a side and forward of the sliding contact portion 7a, so that the capturing body 6 is rotated to the engagement position in a direction in which the sliding contact portion 7a is pulled out from the width side groove portion 7d. When the sliding contact portion 7a is positioned at the corner 7f by this rotation, the receiving member 3 is slid to the second position by the urging force of the urging means 4, and the door Ma is moved forward to the closed position. When the door Ma in the closed position is moved backward, the receiving member 3 is moved to the first position via the capturing body 6 capturing the striker 1, and at this time, the striker 1 moves along the right side wall 6e of the capturing recess 6d. When the sliding contact portion 7a is positioned at the corner 7f of the cam groove, the capturing body 6 is rotated to the non-engagement position so that the sliding contact portion 7a enters the width side groove portion 7d. The striker 1 is released from the receiving member 3 while being positioned in the first position.

  In this first example, an auxiliary hooking portion 6g that is recessed upward is formed between the catching recess 6d and the moving end 6c at the lower portion of the catching body 6, and the door Ma is rotated to the closed position. If the receiving member 3 has been moved to the second position due to a malfunction even though it has not been moved, if the door Ma is moved forward toward the closed position, the striker 1 guided by the guide means 9 is moved to the engaging position. While moving the striker 1 downward between the auxiliary hooking part 6g of the capturing body 6 and the moving end 6c, it gets over and enters the auxiliary hooking part 6g. As a result, when such an erroneous operation occurs, the door Ma is moved forward toward the closed position and then opened again, so that the receiving member 3 can be restored to the intended state at the first position. ing.

(Second example)
In the forward movement mechanism R according to the second example shown in FIGS. 15 to 25, the arm body 2 is constituted by two or more bar-shaped arm structures 2 m and 2 n that are rotatably combined with each other. One arm structure 2m is attached to one surface Mc of the door Ma between both ends thereof. The other arm structure 2n is assembled to one end of the arm structure 2m so as to be rotatable with a vertical shaft 2o. A tip member 2p provided with the striker 1 is screwed to the other arm constituting body 2n, and the striker 1 is provided at the free end 2a of the arm body 2.

  In this second example, one end of the torsion coil spring 2q wound around the vertical shaft 2o is stopped on the one arm constituent body 2m side, and the other end of the spring is stopped on the other arm constituent body 2n side. The basic posture of the arm body 2 having the widest distance between the striker 1 and the front surface Mc when the door Ma moves forward is maintained by the spring 2q. (Fig. 24)

  Also in this second example, the receiving member 3 is supported by the main body 5 so as to be slidable, and is attached to the door frame Fa as the fixed body F via the main body 5. .

  Further, the catcher 6 of the striker 1 is assembled to the receiving member 3 so as to be movable between the engaging position where the striker 1 is engaged and the non-engaging position where the striker 1 is not engaged. At the same time, the receiving member 3 and the main body 5 are simultaneously held in a state in which the receiving member 3 is in the first position and in a state in which the capturing body 6 is in the non-engagement position, and the capture is triggered by the contact of the striker 1. A holding means 7 for allowing the body 6 to move to the engaging position and for releasing the holding of the receiving member 3 by this movement is provided.

  In the illustrated example, the main body 5 is configured to have an elongated case shape with the lower surface opened. Also, an introduction opening 5f of the striker 1 communicating with a lower chamber 5h described later is formed at one end of the main body 5. Typically, the main body 5 is attached to the frame upper portion Fc of the door frame Fa so that the other end is located on the door hinge Mb side, and the upper portion of the main body 5 is attached to the frame upper portion Fc along the length direction. .

  In this second example, first, the receiving member 3 is biased by a tension coil spring 4b as a biasing means 4 to be described later on the introduction opening 5f side of the main body 5 in the main body 5 until it contacts the striker 1. (FIG. 15) Secondly, when it comes into contact with the striker 1, the holding coil 7 is released and the striker 1 is captured instead. Due to the urging of 4b, the main body 5 is forcibly moved to the second position in a direction away from the introduction opening 5f. (FIG. 19) Thereby, in the example shown in the figure, when the door Ma as the rotating body M is operated forward, the door is moved by the receiving member 3 which is operated as described above from the position where the striker 1 contacts the receiving member 3. Ma is assisted in its forward movement to a closed position as a predetermined position. In this second example, the assisted forward movement of the door Ma is made slow by the braking force of the braking means 8 described later, and the door Ma makes a loud noise, It does not return in the opening direction due to the reaction force when it hits the part Fb.

  Thus, when the door Ma as the rotating body M moved forward to a predetermined position is operated backward, the receiving member 3 capturing the striker 1 by the capturing body 6 resists the bias of the tension coil spring 4b, That is, while the tension coil spring 4b stores energy, the main body 5 is moved to the first position, and when reaching the first position, it is held again by the holding means 7 and the capturing body 6 rotates to the non-engagement position. The striker 1 is released. And by this release, the door Ma is allowed to return to a desired position.

  Specifically, the main body 5 is divided into an upper chamber 5g and a lower chamber 5h. The lower chamber 5h is opened downward along the length of the main body 5. The receiving member 3 is moved in the lower chamber 5h. The lower chamber 5h is the length of the main body 5. A pair of wall portions 5i and 5i are provided along the direction, and the movement of the receiving member 3 is guided by the wall portions 5i. Further, the upper chamber 5g communicates with the lower chamber 5h via a slit 5m extending in the length direction of the main body 5.

  The receiving member 3 includes a base 3h, a capturing body 6 combined with the base 3h so as to be slidable in the length direction of the main body 5, and a stopper 7g combined with the base 3h so as to be slidable in the vertical direction. And a spring 3k that constantly urges the capturing body 6 in a direction to protrude from the base 3h toward the introduction opening 5f. Further, the stopper 7g and the capturing body 6 are linked by passing a pin 3j passed through a longitudinal guide groove 3i formed in the base 3h through a cam groove 6m formed in the main portion 6h of the capturing body 6, In a state where the capturing body 6 has fully advanced to the introduction opening 5f side by the bias of the spring 3k, the stopper 7g protrudes upward from the upper part of the base 3h, while the capturing body 6 moves backward against the bias of the spring 3k. As a result, the stopper 7g is drawn into the base 3h.

  Moreover, the front part of the capturing body 6 is provided with holding pieces 6n for capturing the striker 1 on the left and right sides thereof. One of the pair of holding pieces 6n, 6n is formed by integrally joining the rear end 6p with a thin hinge 6k at the corner where the front end 6i of the main body 6h of the capturing body 6 and the one side 6j are in contact with each other. A projecting portion 6q projecting inward is provided between the rear end 6p and the front end 6o. The other of the pair of holding pieces 6n, 6n is integrally joined at the corner where the front end surface 6i of the main body 6h of the capturing body 6 is in contact with the other side surface by a thin elastic hinge portion 6k. And a projection 6q projecting inwardly between the rear end and the front end. In the illustrated example, the pair of holding pieces 6n, 6n is, in the first position, the elastic hinge so that the pitch between the holding piece 6n and the other holding piece 6n increases as it approaches the front end 6o. Positioned by the elasticity of the portion 6k, the back portion 6r opposite to the protruding portion 6q is accommodated in a window hole 5j formed in the wall portion 5i on the introduction opening 5f side of the lower chamber 5h of the main body 5. (FIG. 17) Moreover, in this 1st position, the space | interval which allows the striker 1 to pass between the protrusions 6q of a pair of holding pieces 6n and 6n is formed. (FIG. 17) Moreover, in this 1st position, the stopper 7g enters the recessed part 7h formed in the top part 5k of the lower chamber 5h. (FIG. 16) The receiving member 3 is held at the first position by the stopper 7g entering the recess 7h. That is, in this second example, the stopper 7g and the recess 7h function as the holding means 7.

  In the illustrated example, the urging means 4 is constituted by a tension coil spring 4 b housed in the upper chamber 5 g of the main body 5. In the illustrated example, one end of the spring 4b applied to a part of the rear end of the base 3h of the receiving member 3 that has entered the upper chamber 5g through the slit 5m formed in the top portion 5k of the lower chamber 5h is fastened. The other end of the spring 4b is fixed to the rear end side of the upper chamber 5g of the main body 5, and the spring 4b is extended most when the receiving member 3 is in the first position. (Fig. 15)

  In the illustrated example, the braking means 8 includes a cylinder 8b, a piston (not shown), and a piston rod 8c, and is configured by a piston damper 8a configured to apply a braking force to the movement or relative movement of the piston. ing. In the illustrated example, the piston damper 8a is fixed to the base 3h of the receiving member 3 at the protruding end of the piston rod 8c between the receiving member 3 in the lower chamber 5h of the main body 5 and the rear end of the lower chamber 5h. In addition, the cylinder 8b is accommodated so as to prevent the movement of the cylinder 8b. When the receiving member 3 is in the first position, the piston rod 8c protrudes from the cylinder 8b. (Fig. 15)

  In this second example, a guide means 9 for guiding the striker 1 to the capturing body 6 of the receiving member 3 at the first position is provided at the tip of the introduction opening 5f of the main body 5. In the illustrated example, the guide means 9 is formed by forming a curved guide surface 9f on a block-like body 9e in which one side portion 9g is integrally connected to one end of the main body 5 where the introduction opening 5f is formed. One side portion 9g of the block-like body 9e is connected to the main body 5 on one side of the main body 5 with the introduction opening 5f interposed therebetween. The block-like body 9e is configured to gradually increase the thickness in the front-rear direction as it goes to the other side portion 9h that faces the one-side portion 9g. A side surface facing the one surface Mc of the door Ma between the other side portion 9h is the curved guide surface 9f.

  Accordingly, in this second example, when the door Ma is moved forward toward the closed position, the striker 1 comes into contact with the curved guide surface 9f immediately before the door Ma is fully closed, and the striker 1 is rotated while the arm body 2 is rotated. The main body 5 is guided into the main body 5 from the introduction opening 5f. Thus, the striker 1 guided into the main body 5 passes between the pair of holding pieces 6n of the capturing body 6 of the receiving member 3 at the first position and the projections 6q of the 6n, and the main body of the capturing body 6 It strikes against the front end face 6i of the portion 6h. (FIG. 18) The capturing body 6 abutted against the striker 1 is retracted against the bias of the spring 4b, and when this retraction occurs, the pair of holding pieces 6n, 6n and the back portion 6r thereof are connected to the window of the main body 5. The striker 1 is captured in the capturing body 6 in a closed state (a holding state) in which the striker 1 is not pulled out from between the protrusions 6q to the introduction opening 5f side by the wall 5i of the main body 5 through the hole 5j. When the capturing body 6 moves back in this way, the stopper 7g is drawn into the base 3h, and the holding of the receiving member 3 is released. (FIG. 18) Thereby, the receiving member 3 is moved toward the second position by the bias of the spring 4b, and the striker 1 is held and captured by the receiving member 3, so that the door Ma is closed. Moved to position. (FIGS. 19 to 21) The stopper 7g pulled in as described above makes the upper end slide in contact with the top 5k of the lower chamber 5h of the main body 5. When the door Ma is moved backward from this state, the receiving member 3 is moved in the main body 5 in the direction opposite to that of the forward movement of the door Ma, and when reaching the first position, the stopper 7g reenters the recess 7h and is captured. Advancement of the body 6 by the spring 3k is allowed, and by this advancement, the back portion 6r of the holding piece 6n reenters the window hole 5j, and the pair of holding pieces 6n, 6n are in an open state (non-holding state). The striker 1 is released. (Fig. 17)

Ma door (rotating body M)
Fa door frame (fixed body F)
R forward movement mechanism 1 striker 2 arm body 2a free end 3 receiving member 4 biasing means

Claims (4)

An arm body that is rotatably provided on either one of the rotating body and a fixed body that rotatably supports the rotating body, and has a striker on the free end side ;
A receiving member provided on the other of the rotating body and the fixed body so as to be slidable across the first position and the second position in a direction crossing the rotating direction of the rotating body;
Urging means for urging the receiving member toward the second position,
The receiving member is configured to be held at the first position against the biasing, and after the striker is captured at the first position in the course of the forward movement of the rotating body, the holding is released and the holding member is released. It is designed to be moved to the second position by urging ,
The arm body is constituted by two or more arm constituent bodies that are combined so as to be rotatable with respect to each other .   2. The forward moving mechanism of the rotating body according to claim 1, further comprising guide means for guiding the striker to the catching portion of the receiving member at the first position. The striker capturing body is assembled to the receiving member so as to be able to rotate between a hooking position where the striker is hooked and a non-hooking position where the striker is not hooked.
The catching body and the support member support body simultaneously hold the receiving member in the first position and the catching body in the non-engagement position, and the catcher engagement is triggered by the striker contact. 3. The forward movement mechanism for a rotating body according to claim 1, further comprising holding means for allowing rotation to a position and releasing the holding of the receiving member by the rotation.   The forward movement mechanism of the rotating body according to any one of claims 1 to 3, wherein an urging means is arranged adjacent to the receiving member on the moving axis of the receiving member.

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