JP4368407B1 - Slide assist device - Google Patents

Abstract

To ensure the accuracy of the operation of a movable locking portion of a slider and to smoothly store and switch the assist force of a drive mechanism.
A slider 5 is coupled to a drive mechanism 4 that accumulates an assist force during a sliding operation in one direction of the opening / closing object and exerts an assist force during a sliding operation in the other direction. 5 is provided with a movable locking portion 52 that is locked and displaced by a locking groove 115 provided in the casing 1 to release the locking to the receiving member 6. When the movable locking portion 52 of the slider 5 is locked to the receiving member 6 and moves from the original position to the locking groove 115 of the casing 1, the driving mechanism 4 accumulates assisting force and is locked to the receiving member 6. In this state, the drive mechanism 4 exerts an assisting force when moving from the locking groove 115 of the casing 1 to the original position, and is locked to the locking groove 115 of the casing 1 released from the locking to the receiving member 6. The assist force accumulated in the drive mechanism 4 is held.
[Selection] Figure 3

Description

  The present invention belongs to a technical field related to a slide assist device for assisting an opening / closing operation of an opening / closing object such as a sliding door, a folding door, and a drawer.

  Sliding doors, for example, as openable / closable objects, have been improved in various parts that guide opening and closing, and can be opened and closed smoothly with a small operating force even if they are large and heavy with a heavy decorative feature. ing. However, this type of sliding door may open and close too smoothly, causing it to collide with the door frame and generating noise, and the sliding door may return slightly due to the reaction of the collision. For this reason, the usefulness of the slide assist apparatus which assists operation which opens and closes a sliding door so that it can be opened and closed reliably, without making a sliding door violently collide with a door frame is increasing.

Conventionally, as this type of slide assist device, for example, the following devices are known.
JP 2006-169723 A

  Patent Document 1 includes a drive mechanism that accumulates assist force during a sliding operation in one direction of the sliding door and exhibits the assist force during a sliding operation in the other direction. The drive mechanism is supported by a casing. The structure installed in the rail which guides the driving | running | working of the running member of a sliding door is shown. This assist force suppresses the rapid sliding motion of the sliding door and maintains the sliding motion until the sliding door is completely opened and closed.

  Patent Document 1 discloses a slider that moves along a casing while being engaged with a receiving member that is connected to a driving mechanism and fixed to a rail. The slider is provided with a movable locking portion that is locked and displaced by a locking groove provided in the casing to release the locking to the receiving member. Assist force is accumulated in the drive mechanism when moving from the position to the locking groove of the casing, and the movable locking portion is locked by the receiving member and moved from the locking groove of the casing to the original position. It functions as a switching member for accumulating and exhibiting the assist force of the drive mechanism. The movable locking portion holds the assist force accumulated in the drive mechanism in the locked state in the locking groove of the casing that is unlocked from the receiving member.

  In Patent Literature 1, when the receiving member is locked while the movable locking portion of the slider is locked in the locking groove of the casing and is displaced, the receiving member is initially brought into contact and the displacement is restored. Is provided through an angle of about 90 degrees between the return contact surface and the locking surface where the receiving member finally locks. . For this reason, since the displacement angle of the movable latching portion of the slider is set large, the accuracy of the operation of the movable latching portion of the slider cannot be obtained, and the assist force accumulation and switching of the drive mechanism can be smoothly switched. There is a problem that it is not done.

  The present invention has been made in view of such problems, and ensures the accuracy of the operation of the movable locking portion of the slider, thereby facilitating the accumulation of the assist force of the drive mechanism and the switching of the exertion. It is an object to provide a slide assist device for an openable / closable object.

  In order to solve the above-mentioned problems, the slide assist device for an opening / closing object according to the present invention employs means described in each of the claims.

That is, in the slide assist device for an opening / closing object according to the present invention, the drive mechanism that accumulates the assist force during the sliding operation in one direction of the opening / closing object and exhibits the assist force during the sliding operation in the other direction is the opening / closing object. Installed on a rail that is supported by a casing connected to the rail and guides the traveling of the traveling member of the opening / closing object, and the drive mechanism is engaged with the receiving member fixed to the rail to follow the casing when the opening / closing object slides. slider moving Te are connected, the slider movable locking portion is provided with engagement of the receiving member in locked displacement the engaging groove provided on the casing is released, movable locking portion of the slider locked to the receiving member to accumulate assist force to the drive mechanism moves the locking grooves of the casing to the original position when engaged with the receiving member moves from the original position of the slide operation to the locking grooves of the casing When driving Mechanism to hold the assist force that has been accumulated in the driving mechanism in the locked state of the locking grooves of the casing locking is released to the receiving member by exerting an assist force, the movable locking portion of the slider of the casing When the receiving member is locked while being locked in the locking groove, the receiving member is initially brought into contact with the return contact surface that makes the receiving member contact first and promotes the return operation of the displacement. It is provided through a locking surface to be stopped and an acute angle .

In this means, since the two surfaces with which the member for displacing the slider abuts are at an acute angle, the displacement angle of the movable locking portion of the slider can be set small. Further, since the return contact surface and the locking surface of the movable locking portion of the slider are at an acute angle, the displacement angle of the movable locking portion of the slider can be set small .

In the slide assist device for an opening / closing object according to the present invention, the return contact surface of the movable locking portion of the slider is abutted non-linearly with the locking surface .

With this means, the impact of the collision of the receiving member on the return contact surface of the movable locking portion of the slider is dispersed by a non-linear line .

In the slide assist device for an opening / closing object according to the present invention, the taper guide in which the locking groove of the casing continuously inclines from the sliding surface of the casing that contacts when the movable locking portion of the slider moves to the inside of the casing. A portion is provided .

In this means, when the movable locking portion of the slider is locked to and released from the locking groove of the casing , the slider is guided by the inclined taper guide portion of the locking groove of the casing and hooked on the locking groove of the casing. Disappear .

  Since the slide assist device for an opening / closing object according to the present invention can set the displacement angle of the movable locking portion of the slider to be small via the acute angle between the two surfaces in contact with the member that displaces the slider. Thus, there is an effect that the accuracy of the operation of the movable locking portion of the slider can be ensured, and the accumulation of the assist force of the drive mechanism and the switching of the exertion can be made smooth.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode for carrying out an opening / closing object slide assist device according to the present invention will be described below with reference to the drawings.

  FIG. 1 and FIG. 2 show the basic principle of the best mode for carrying out the opening / closing object slide assist device according to the present invention.

  This basic principle includes a slider 5 that responds to the opening and closing of the opening and closing object. The slider 5 is provided with a movable locking portion 52 that displaces and switches the accumulation and display of the assist force of the opening / closing object. The movable locking portion 52 has a locking surface 521 that is a two surface with which the receiving member 6 that is a member to be displaced at the time of displacement comes into contact, and a return contact surface 522 through an angle θ that is an acute angle (less than 90 degrees). Is provided.

  The acute angle θ of the locking surface 521 and the return contact surface 522 makes it possible to set the displacement angle of the movable locking portion to be small and ensure the accuracy of the operation of the movable locking portion 52. Accumulation of assist force of the drive mechanism 4 and switching of the display can be made smooth.

  As shown in FIG. 2, the slider and the receiving member 6 may be arranged upside down (shown by arrows) even if they are forward and backward (see FIGS. 2A and 2B), and orthogonal to the top and bottom. It is also possible to do so (see FIG. 2C). It is also possible to position both the slider 5 and the receiving member 6 on the movable side of the opening / closing object.

  3 to 13 show a first example of the best mode for carrying out the slide assist device according to the present invention.

  In the first example, the sliding door is targeted as the opening / closing object D. The sliding door D is installed at a part of the width of the sliding door D and assists the closing operation of the sliding door D. That is, an assist force is accumulated and exhibited in a part of the sliding motion of the sliding door D (so-called partial assist type).

  In the first example, as shown in FIGS. 3 and 4, a traveling member 2 of a wheel structure connected to the sliding door D is attached to one end portion of the elongated cylindrical casing 1, and the sliding door D is attached to the other end portion. A finished product that is installed with a traveling guide member 3 with a simplified wheel structure that is not connected, and is inserted and installed as it is inside a box-shaped rail R that is attached to a duck, door frame, ceiling surface, etc. Consists of.

  The casing 1 has a polygonal upper frame member 11 and a lower frame member 12 (see FIG. 5) which are chamfered at the corners having a U-shaped cross section, and both end openings are end members 13 and 14 of the block body. It is formed in an elongated cylindrical shape that is closed with.

  The upper frame member 11 and the lower frame member 12 of the casing 1 are asymmetrically bent from a stainless steel plate or the like, and are provided with bonding areas 111 and 121 having large areas that are bonded to the side portions by fitting. The engaging projections 112 and the engaging grooves 122 cut and raised on the surfaces 111 and 121 are fitted and assembled at a proper position with a certain strength.

  The upper frame member 11 of the casing 1 is provided with a support piece 113 that is partly cut out at a substantially central portion of the upper surface and bent so as to be L-shaped inside, and has a window shape in which the upper support piece 113 is formed. A narrow slide groove 114 for moving the slider 5 described later is provided to the vicinity of one end member 13 of the casing 1 continuously to the notch of the casing 1, and is described later in succession to the end of the slide groove 114 on the upper surface. A window-shaped locking groove 115 for displacing the slider 5 is provided. The edge surface along the slide groove 114 is a flat slide surface 116 for moving the slider 5 described later. As shown in detail in FIGS. 7, 8, and 11, the locking groove 115 is provided with a locking space 115 a as a space between the one end member 13 inside the casing 1, and the locking space 115. A taper guide portion 115b that is continuously inclined and bent from the end portion of the slide surface 116 toward the 115a is provided, and is bent in a direction substantially orthogonal to the slide surface 116 continuously from the taper guide portion 115b. A locking portion 115c that is a free end that does not reach one lower frame member 12 is provided. As shown in FIG. 7, the locking groove 115 is provided with a notch 115d with a small width a in the side portion of the upper frame member 11 of the taper guide portion 115b. Therefore, distortion due to bending stress does not occur in the surroundings.

  As shown in FIGS. 3, 4, 8, and 11, the lower frame member 12 of the casing 1 is provided with a dam portion 123 that is slightly raised on the bottom surface near both ends.

  The end members 13 and 14 of the casing 1 are formed of a synthetic resin material, and are engaged with the upper frame member 11 and the lower frame member 12 of the casing 1 and fixed by screws or the like. The asymmetric polygon of the frame member 12 is maintained and foreign matter is prevented from entering the casing 1.

  One end member 13 of the casing 1 is detachably attached to the traveling member 2 with screws so that the traveling member 2 corresponding to the sliding door D can be selected. The end member 13 is provided with a step portion 131 that defines a locking space 115 a of the locking groove 115 of the upper frame member 11 of the casing 1, and a lower portion of the step portion 131 serves as a protruding piece 132, The lower end portion of the locking portion 115c of the locking groove 115 of the frame member 11 is in contact with the lower end portion as a member that returns and prevents deformation.

  The other end member 14 of the casing 1 is integrated with the travel guide member 3. Accordingly, when a sliding structure other than the wheel structure is selected as the traveling guide member 3, the end member 14 is replaced and attached to the casing 1.

  The casing 1 supports a drive mechanism 4 that accumulates and exhibits assist force.

  As shown in FIGS. 3 to 6 and 8, the drive mechanism 4 includes a spring 41 that expands and contracts to accumulate and exert an assist force, and a spring mounting bracket that attaches the spring 41 between the casing 1 and a slider 5 described later. 42 and a fluid pressure damper 43 that suppresses the exertion of the assist force by the spring 41. The spring 41 is composed of a coil spring, and the same spring 41 is used in consideration of the balance of assist force accumulation and display. A pair is arranged. The spring mounting bracket 42 is composed of a pair attached to the upper frame member 11 of the casing 1 and a slider 5 described later, and can be attached to and detached from the upper frame member 11 of the casing 1 and the slider 5 described later by engagement, insertion, or the like. An attachment piece 422 on which the end of the spring 41 is hung is erected on a base portion 421 provided with an attachment window attached to the attachment 422, and the end of the spring 41 is detachably attached to the attachment piece 422 with a stopper 423. The fluid pressure damper 43 is composed of a cylinder type oil damper that generates an oil pressure resistance when the rod 432 moves forward and backward from the cylinder 431 filled with oil and the rod 432 moves backward. The cylinder 431 is disposed inside the casing 1. The other end member 14 and the support piece 113 of the upper frame member 11 are sandwiched and locked, and the rod 432 is advanced toward the one end member 13 inside the casing 1.

  The casing 1 supports a slider 5 serving as a switching member for storing and exhibiting assist force.

  As shown in FIGS. 1, 6, and 8 to 13, the slider 5 is made of a synthetic resin material that is less slidable with respect to the casing 1 and has a good sliding property. The movable locking portion 52 is rotatably supported by the support shaft 53.

  The slider main body 51 of the slider 5 is connected to the rod 432 of the fluid pressure damper 43 of the drive mechanism 4 so that the cross-sectional shape thereof is substantially the same as the cross-sectional shape of the casing 1, and almost the entire slide of the upper frame member 11 inside the casing 1. The mounting window of the base portion 421 of the spring mounting bracket 42 of the drive mechanism 4 is locked to the upper surface of the casing 1 on the side of the other end member 14. A protrusion-shaped attachment portion 511 is provided, and an accommodation space portion 512 that forms a space that accommodates most of the movable locking portion 52 from the end surface on the one end member 13 side of the casing 1 to the upper surface to ensure rotation is dug. Rarely, a stopper portion 513 protruding upward in a mountain shape is provided on the upper surface of the end portion of the accommodation space portion 512. The accommodation space 512 has a width that matches the width of the slide groove 114 of the upper frame member 11 of the casing 1. The stopper portion 513 has a width b that matches the width of the sliding groove 114 of the upper frame member 11 of the casing 1 and protrudes upward from the sliding groove 114 of the upper frame member 11 of the casing 1.

  The movable latching portion 52 of the slider 5 has a lower half portion whose width matches the width of the accommodating space portion 512 of the slider main body 51, and the lower half portion is for sliding the upper frame member 11 inside the casing 1 together with the slider main body 51. The length in which the groove 114 is disposed is slidable. The movable locking portion 52 is provided with a locking surface 521 that locks a receiving member 6 to be described later at substantially the center of the upper half, and from the lower end of the locking surface 521 of the upper half to the stopper portion 513 side of the slider body 51. Is provided with a contact surface 522 on which a receiving member 6 to be described later contacts, and the width of the lower half (the upper frame of the casing 1) on the opposite side of the stopper portion 513 of the slider main body 51 via the locking surface 521 of the upper half. An inclined portion 523 of an inclined surface having a width c that is larger than the width of the locking groove 115 of the upper frame member 11 of the casing 1 and larger than the width of the sliding groove 114 of the member 11 is provided. Accordingly, the movable locking portion 52 is slid by the lower surface of the inclined portion 523 being in contact with the sliding surface 116 of the upper frame member 11 of the casing 1, and the inclined portion is formed in the locking groove 115 of the upper frame member 11 of the casing 1. 523 is rotated and displaced so as to be dropped into the locking groove 115. As shown in FIG. 1A, the locking surface 521 and the contact surface 522 are abutted at an acute angle θ of less than 90 degrees. Further, the contact surface 522 is abutted non-linearly with the locking surface 521 so as to be an inclined surface on the stopper portion 513 side of the slider body 51 with respect to the passing line L of the support shaft 53. Further, in a state where the inclined portion 523 is dropped into the locking groove 115, the uppermost portion of the contact surface 522 is above the uppermost portion of the locking surface 521 by a slight distance d as shown in FIG. Is set to be located.

  The support shaft 53 of the slider 5 passes through substantially the center of the movable locking portion 52 and is supported at the corner of the accommodation space 512 of the slider body 51.

  A receiving member 6 that is linked to the slider 5 is attached to the rail R.

  As shown in FIGS. 3 and 8 to 13, the receiving member 6 includes a base piece 61 that is in contact with the ceiling inner wall of the rail R and has a central portion fixed by screws, and one end portion of the base piece 61. A locking piece 62 that is bent in a U-shape in the length direction and is locked to the locking surface 521 of the movable locking portion 52 of the slider 5, and one end of the base piece 61 is L-shaped from both sides in the width direction. It consists of a pair of recovery pieces 63 bent relative to each other. The recovery piece 63 is set such that the opposing interval is larger than the width b of the first inclined portion 522 of the movable locking portion 52 of the slider 5 and smaller than the width c of the inclined portion 523.

  According to the first example, since it is a finished product so as to be inserted and installed in the rail R as it is, installation work at the construction site becomes easy. Moreover, since the traveling member 2 and the traveling guide member 3 can be attached to and detached from the casing 1 and its end member 13, the traveling member 2 and the traveling guide member 3 can be installed on the construction site corresponding to the sliding door D and the rail R as necessary. It can also be exchanged. Further, as shown in FIG. 3, the spring 41 of the drive mechanism 4 is arranged outside the casing 1, so that it can be replaced at the construction site by adding the spring 41 or the spring mounting bracket 42 as necessary. The assist force of the drive mechanism 4 can be adjusted.

  As shown in FIG. 8A, the first example is installed inside the rail R, and the locking surface 521 of the movable locking portion 52 of the slider 5 is locked to the locking piece 62 of the receiving member 6. It is set in the state.

  In the state shown in FIG. 8A, the spring 41 of the drive mechanism 4 contracts, the rod 432 of the fluid pressure damper 43 retracts to the cylinder 431, and the slider 5 stands up (movable) from the slider body 51. The lower surface of the inclined portion 523 of the locking portion 52 is brought into contact with the sliding surface 116 of the upper frame member 11 of the casing 1 so as to end the sliding groove 114 of the upper frame member 11 of the casing 1 (the locking groove 115 of the locking groove 115). It is located (original position) on the opposite side.

  When the sliding door D is opened, the locking surface 521 of the movable locking portion 52 of the slider 5 is locked to the locking piece 62 of the receiving member 6 as shown in FIG. The slider 5 moves in the direction of the locking groove 115 of the upper frame member 11 of the casing 1 in accordance with the sliding operation of B. That is, the spring 41 of the drive mechanism 4 extends, and the rod 432 of the fluid pressure damper 43 advances from the cylinder 431, and the assist force is accumulated in the drive mechanism 4.

  When the slider 5 reaches the locking groove 115 of the upper frame member 11 of the casing 1, as shown in FIG. 9A, the casing 1 in which the lower surface of the inclined portion 523 of the movable locking portion 52 of the slider 5 is in contact. Since the sliding surface 116 of the upper frame member 11 disappears, the movable locking portion 52 of the slider 5 starts to rotate around the support shaft 53 by the tensile force of the spring 41 of the drive mechanism 4.

  The rotation of the movable locking portion 52 of the slider 5 is guided by the taper guide portion 115b of the locking groove 115 of the upper frame member 11 of the casing 1 as shown in FIG. 9B. That is, the movable locking portion 52 of the slider 5 moves obliquely downward so that the lower surface of the inclined portion 523 slides on the taper guide portion 115 b of the locking groove 115 of the upper frame member 11 of the casing 1. Therefore, the movable locking portion 52 of the slider 5 is smoothly and reliably rotated without being caught by the locking groove 115 of the upper frame member 11 of the casing 1.

  Then, as shown in FIG. 9C, when the rotation of the movable locking portion 52 of the slider 5 proceeds, the locking surface 521 of the movable locking portion 52 of the slider 5 moves from the locking piece 62 of the receiving member 6. break away. At this time, the lower surface of the inclined portion 523 of the movable locking portion 52 of the slider 5 is in contact with the locking portion 115 c of the locking groove 115 of the upper frame member 11 of the casing 1. That is, the movable locking portion 52 of the slider 5 is locked to the locking portion 115 c of the locking groove 115 of the upper frame member 11 of the casing 1 by the tensile force of the spring 41 of the drive mechanism 4. It is to be noted that the locking portion 115c which is a bent piece shape of the locking groove 115 of the upper frame member 11 of the casing 1 is locked by the protruding piece 132 of the end member 13 of the casing 1 so that the return deformation is prevented. The inclined portion 523 of the movable locking portion 52 of the slider 5 is securely held at a certain position.

  As a result, the movable locking portion 52 of the slider 5 is displaced so as to drop into the locking space 115 a of the locking groove 115 of the upper frame member 11 of the casing 1, and the assist accumulated in the drive mechanism 3. It is maintained in a state that retains force.

  Subsequently, when the opening operation is continued for the sliding door D, as shown in FIG. 10, the area around the stopper surface 513 of the slider body 51 of the slider 5 and the contact surface 522 of the movable locking portion 52 from the width b described above. It passes between the recovery pieces 63 of the receiving member 6. Since the inclined portion 523 of the movable locking portion 52 of the slider 5 is rotated and displaced, it passes below the recovery piece 63 of the receiving member 6. Thereafter, the sliding door D reaches a complete open state.

  When the closing operation is performed on the sliding door D, basically, the reverse operation of the operation of each part associated with the opening operation described above is performed. In particular, the rotation of the movable locking portion 52 of the slider 5 in the reverse direction is guided by the taper guide portion 115 b of the locking groove 115 of the upper frame member 11 of the casing 1, and the lower surface of the inclined portion 523 is above the casing 1. It moves obliquely upward so as to slide on the taper guide portion 115b of the locking groove 115 of the frame member 11. For this reason, the movable locking portion 52 of the slider 5 is smoothly and reliably rotated in the reverse direction without being caught by the locking groove 115 of the upper frame member 11 of the casing 1.

  When the movable locking portion 52 of the slider 5 is rotated in the opposite direction, the receiving member 6 initially contacts the contact surface 522 to promote the rotation, and then contacts the stopper portion 513 of the slider main body 51 and finally. The locking surface 521 is locked. Therefore, the receiving member 6 to the movable locking portion 52 of the slider 5 is caused by the butting structure of the locking surface 521 and the contact surface 522 of the movable locking portion 52 of the slider 5 or the stopper portion 513 of the slider body 51. The impact of this collision can be dispersed and mitigated.

Further, the rotation of the movable locking portion 52 of the slider 5 in the forward / reverse direction is set so that the displacement is reduced by the angle θ of the locking surface 521 and the contact surface 522. Therefore, it is possible to ensure the accuracy of the operation of the movable locking portion 52 of the slider 5 and to smoothly switch the accumulation and display of the assist force of the drive mechanism 4.
When the locking surface 521 of the movable locking portion 52 of the slider 5 is locked to the locking piece 62 of the receiving member 6, the assist force accumulated in the drive mechanism 4 is suppressed by the fluid pressure damper 43. As the tensile force of the spring 41, it is exhibited as an appropriate auxiliary force so as to suppress the rapid sliding motion of the sliding door D and to maintain the sliding motion until the sliding door G is completely opened and closed. At this time, the movable locking portion 52 of the slider 5 stands up and moves toward the original position.

  In the site construction for configuring the set state shown in FIG. 8 (A), as shown in FIG. 11 (A), a door frame is used to prevent unnecessary stress on the slider 5 and the receiving member 6. Because of the relationship with the housing, etc., the slider 5 and the receiving member 6 are separated and inserted into the rail R before the sliding door D is attached. And after arrange | positioning and fixing the rail R, the sliding door D is attached and the sliding door D is moved to a closing direction. With this movement, as shown in FIG. 12, the inclined portion 523 of the movable locking portion 52 of the slider 5 comes into contact with the recovery piece 63 of the receiving member 6 from the aforementioned width b. At this time, since the slider 5 positioned at the center (original position) in the longitudinal direction of the casing 1 is pushed by the recovery piece 63 of the receiving member 6, the casing 1 has an elongated cylindrical shape and is slightly elastic. Is elastically deformed so as to bend downward. As a result, the inclined portion 523 of the movable locking portion 52 of the slider 5 can pass under the recovery piece 63 of the receiving member 6 (see FIG. 11B).

  When the sliding door D is moved in the opening direction after this passage, as shown in FIG. 13, the recovery piece 63 of the receiving member 6 functions in the same manner as the case where the assisting force of the locking piece 62 is accumulated, The slider 5 is rotated by the locking groove 115 of the upper frame member 11 of the casing 1. Therefore, when the sliding door D is subsequently moved in the closing direction, the locking piece 62 of the receiving member 6 and the locking surface 521 of the movable locking portion 52 of the slider 5 are locked.

  When the sliding door D is in the open state, the movable locking portion 52 of the slider 5 rotates unexpectedly in the reverse direction due to vibration or the like from the locking state in the locking groove 115 of the upper frame member 11 of the casing 1. If it has returned to Fig. 11, the locking piece 62 of the receiving member 6 and the locking surface 521 of the movable locking portion 52 of the slider 5 are locked by the operation shown in Figs. The restored state is restored.

  Furthermore, in the first example, since the casing 1 is polygonal and has rigidity, the casing 1 is not distorted or the like even when used for a long period of time, and the operation of the slider 5 is not hindered. Note that the upper frame member 11 and the lower frame member 12 into which the casing 1 is fitted are joined to each other by asymmetrical polygonal and wide-area joining surfaces 111 and 121. It is useful to endure and increase the rigidity of the casing 1. In addition, the fact that the upper frame member 11 and the lower frame member 12 into which the casing 1 is fitted is engaged with the engagement protrusion 112 and the engagement groove 122 to increase the fitting strength also increases the rigidity of the casing 1. It is useful for that. In addition, retaining the polygons of the upper frame member 11 and the lower frame member 12 in which the end members 13 and 14 are attached and fitted to the both ends of the casing 1 also helps to increase the rigidity of the casing 1. Yes. Further, the support piece 113 provided on the upper frame member 11 of the casing 1 and the dam portion 123 provided on the lower frame member 12 of the casing 1 also form an uneven structure on the casing 1 to increase the rigidity of the casing 1. Helpful.

  Furthermore, since the drive mechanism 4 supported by the casing 1 is a separate part without being integrated with the spring 41 and the fluid pressure damper 43, it is inexpensive and easily manufactured, and there is also a failure during use. There is little and the certainty is obtained in the operation during use. Further, since the spring 41 of the drive mechanism 4 is disposed at the upper part inside the installed rail R and is in a position where dust or the like is difficult to adhere, the spring 41 of the drive mechanism 4 bites the dust or the like even though it is exposed from the casing 1. It does not cause malfunction due to. The space between the weirs 123 on the bottom surface of the lower frame member 12 of the casing 1 also functions as an oil reservoir that leaks from the fluid pressure damper 43 that is the oil damper of the drive mechanism 4.

  14 and 15 show a second example of the best mode for carrying out the opening / closing object slide assist device according to the present invention.

  In the second example, a single spring 41 of the drive mechanism 4 is disposed below the bottom surface of the lower frame member 12 of the casing 1.

  The spring 41 of the drive mechanism 4 protrudes as a small block body from a mounting piece 124 in which a part of the bottom surface of the lower frame member 12 of the casing 1 is cut and raised outward in an L-shape and the bottom surface of the slider body 51 of the slider 5. It is spanned between the mounting blocks 514 and arranged so as to be exposed from the open portion of the rail R. The attachment piece 124 of the lower frame member 12 of the casing 1 is provided with an insertion groove 125 opened downward. The mounting block 513 of the slider main body 51 of the slider 5 is provided with an insertion groove 515 opened downward. A reduced diameter portion formed near both ends of the spring 41 of the drive mechanism 4 is inserted into and removed from the insertion groove 125 of the lower frame member 12 of the casing 1 and the insertion groove 515 of the slider body 51 of the slider 5 from below. be able to.

  Note that, on the bottom surface of the lower frame member 12 of the casing 1, the slide groove 126 for allowing the movement of the mounting block 514 of the slider body 51 of the slider 5 corresponds to the slide groove 114 of the upper frame member 11. Is provided.

  According to the second example, as shown in FIG. 15, the spring 41 of the drive mechanism 4 exposed from the rail R can be easily replaced from below while being installed on the rail R. Therefore, the assist force after installation can be easily adjusted. Further, since the spring 41 of the drive mechanism 4 is exposed from the open portion of the rail R and no dust or the like is accumulated around it, the spring 41 of the drive mechanism 4 does not cause a malfunction due to the biting of dust or the like.

  Since the sliding groove 126 is provided on the bottom surface of the lower frame member 12 of the casing 1, the dam portion 123 serving as an oil reservoir cannot be provided as in the first example. It is possible to provide the weir portion 123 at a narrow interval in a portion where the slide groove 126 on the bottom surface is not provided.

  FIGS. 16-20 shows the 3rd example of the best form for implementing the sliding assistance apparatus of the sliding door which concerns on this invention.

  In the third example, the spring 41 of the drive mechanism 4 is disposed inside the casing 1.

  The upper frame member 11 of the casing 1 is provided with a small cylindrical storage portion 117 that is raised in a square shape toward both sides of the upper portion in order to receive the spring 41 of the drive mechanism 4, and has a more complicated polygonal shape. Has been.

  The spring 41 of the drive mechanism 4 is stretched between the other end member 14 of the casing 1 and the slider main body 51 of the slider 5. The other end member 14 of the casing 1 and the slider main body 51 of the slider 5 are provided with projecting portions 141 and 516 projecting upward in a square shape corresponding to the accommodating portion 117 of the upper frame member 11 of the casing 1. Insertion grooves 142 and 517 in which reduced diameter portions formed near both ends of the spring 41 of the drive mechanism 4 can be inserted into and removed from the protrusions 141 and 516 are provided. That is, a special member for attaching the spring 41 of the drive mechanism 4 is not required, and the structure is simplified.

  According to the third example, since the spring 41 of the drive mechanism 4 is accommodated in the casing 1 and unnecessary irregularities are eliminated from the exterior, packaging, transportation, and the like are facilitated, and a finished product is further promoted.

  Further, since the spring 41 and the fluid pressure damper 43 (particularly the rod 432) of the drive mechanism 4 are close to each other, useless stress such as twisting is applied to the slider body 1 of the slider 5 to which the spring 41 and the fluid pressure damper 43 are coupled together. So you do n’t have to. In addition, since the spring 41 of the drive mechanism 4 is disposed on the upper part of the fluid pressure damper 43, contact with oil leaked from the fluid pressure damper 43, which is an oil damper, can be avoided. The attachment of the spring 41 does not cause malfunction.

  Note that the housing portion 117 of the upper frame member 11 of the casing 1 and the protruding portion 141 of the end member 14 are useful for increasing the rigidity of the casing 1.

  As described above, in addition to the illustrated examples, a structure that assists the opening of the sliding door D or a structure in which the assist force is accumulated and exhibited in the entire sliding operation of the sliding door D can be used.

  Furthermore, it is also possible to make the casing 1 into another polygon.

  Further, it is possible to use a drive mechanism 4 having another structure.

  Furthermore, the spring 41 of the drive mechanism 4 can be supported on the casing 1 by another support structure.

  Furthermore, the locking surface 521 and the contact surface 522 of the movable locking portion 52 of the slider 5 can be abutted with another structure.

It is side surface sectional drawing of the principal part of the 1st example of the best form for implementing the slide assist apparatus of the opening / closing thing which concerns on this invention, (A), (B) shows a different operation state. It is a schematic perspective view explaining arrangement | positioning of an opening / closing thing. FIG. 2 is an overall perspective view of FIG. 1. FIG. 4 is a partial exploded view of FIG. 3. FIG. 4 is an enlarged sectional view taken along line XX in FIG. 3. It is the enlarged view which cut | disconnected and decomposed | disassembled a part of principal part of FIG. It is the enlarged view which cut | disconnected a part of other principal part of FIG. It is a longitudinal cross-sectional view which shows the operation | movement of FIG. 3, (A) shows the closed state of a sliding door, (B) shows the open halfway state of a sliding door. FIG. 9 is an enlarged view of the main part of FIG. 8, (A) shows the state of operation of FIG. 8 (B), (B) shows the state of operation following FIG. 8 (B), and (C). Further, the state of the operation following (B) is shown. FIG. 10 is a state diagram of the operation following FIG. It is a side view which shows the operation | movement of the principal part in the case of the set of FIG. 3, and the operation | movement order is shown by (A) and (B). It is a principal part enlarged view of the halfway state from FIG. 11 (A) to FIG. 11 (B). FIG. 12 is a side view showing the operation of the main part in the setting of FIG. 3 following FIG. It is a perspective view of the 2nd example of the best form for implementing the slide assist device of the opening-and-closing thing concerning the present invention. It is the YY line expanded sectional view of FIG. It is a perspective view of the 3rd example of the best form for implementing the slide assist device of the opening and closing thing concerning the present invention. It is the ZZ line expanded sectional view of FIG. It is the enlarged view which cut | disconnected a part of principal part of FIG. It is the enlarged view which cut | disconnected a part of other principal part of FIG. It is a longitudinal cross-sectional view which shows the operation | movement of FIG. 16, (A) shows the closed state of a sliding door, (B) shows the open middle state of the sliding door.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Casing 11 Upper frame member 115 Locking groove 115b Tapered guide part 115c Locking part 116 Sliding surface 13 End member 2 Traveling member 4 Drive mechanism 5 Slider 52 Movable locking part 521 Locking surface 522 Contacting surface 6 Receiving member D Sliding door R rail

Claims (3)

A driving mechanism that accumulates assisting force during sliding operation in one direction of the opening / closing object and that exhibits assisting force during sliding operation in the other direction is supported by a casing coupled to the opening / closing object. The drive mechanism is locked to a receiving member fixed to the rail, and a slider that moves along the casing when the open / close object slides is connected. The slider is provided on the casing. movable locking portion locking is released in the locked displacement to the locking groove to the receiving member is provided with,
Movable locking portion of the slider to accumulate assist force to the drive mechanism as it moves locked to the receiving member from the original position of the slide operation to the locking grooves of the casing, locked in the casing engaging in the receiving member to exert assisting force to the drive mechanism when moving from the groove to the original position, holds the assist force accumulated in the drive mechanism in a locked state to locking grooves of casing engagement is released into receiving member Let
When the movable locking portion of the slider is locked in the locking groove of the casing and is displaced, when the receiving member is locked, the receiving member first comes into contact and the return contact that facilitates the return operation of the displacement A sliding assist device for an opening and closing object, wherein the surface is provided at an acute angle with a locking surface that the receiving member finally locks . 2. The slide assist device for an open / close object according to claim 1, wherein the return contact surface of the movable locking portion of the slider abuts non-linearly with the lock surface . 3. The slide assist device for an opening / closing object according to claim 1, wherein the locking groove of the casing is continuously tapered from the sliding surface of the casing that contacts when the movable locking portion of the slider moves to incline into the casing. A sliding assist device for opening and closing objects, characterized in that a guide portion is provided .

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