JP3462929B2 - Sliding door shock absorber - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to providing a resistance to reduce the moving speed of a sliding door when closing the sliding door, and to open the sliding door without resistance when opening the sliding door. The present invention relates to a shock absorber for a sliding door. 2. Description of the Related Art Conventionally, when closing a sliding door, if the door is vigorously closed, a loud impact noise is produced when the door is hit, and a child's hand or the like is placed between the sliding door and a pillar. Injuries were sometimes caused. Therefore,
An opening / closing device for a sliding door having a configuration in which an air damper is attached to an upper side of a sliding door to reduce impact on a pillar is disclosed (for example, see Japanese Utility Model Laid-Open No. 1-114776). In this opening and closing device, the sliding door is connected to the cylinder rod, and when closing the sliding door, the sliding door is given a resistance force by an air damper to reduce the moving speed. [0003] However, since this opening and closing device is provided with an air damper having a cylinder, the shock absorber becomes large, and it is impossible to adjust the damping force, so that the brake is too effective or the braking force is insufficient. Or something. Although an air damper having a structure capable of adjusting the amount of air flow is also disclosed, the structure for adjusting the amount of air flow requires the use of a valve or the like, which makes the structure complicated. was there. [0004] Therefore, the present invention provides a simple structure when closed.
The sliding speed of the sliding door can be reduced,
An object of the present invention is to provide a shock absorber for a sliding door in which adjustment of a braking force is easy . [0005] In order to achieve the above object, the present invention provides a method for closing a sliding door at an upper portion or a lower portion of the sliding door.
A frame body is provided which can be mounted from the opposite side, and the frame body has an action member having an action portion protruding from the frame body, and the action section side rotates with respect to the opening and closing direction of the sliding door. It is pivotally supported in the frame body, and the rotation is restricted at the position where the operation part side projects maximum when the sliding door moves in the closing direction, and the rotation of the operation member when the sliding door moves in the opening direction. The supporting member that supports the working member is configured so that the amount of protrusion on the working side is adjustable, and a screw that adjusts the amount of protrusion is used to close the sliding door.
It is provided on the chain direction side, and provides a contact member that can be attached along the longitudinal direction on the threshold, sill, or rail side,
When the sliding door moves in the closing direction, the sliding door comes into contact with the action member to reduce the moving speed of the sliding door. If the [0006] [action] in the above configuration, you at the top or the bottom of the sliding door
The frame from the closed side of kicking sliding door can be mounted insert. Then, when the sliding door is closed, since the rotation of the action portion of the action member protruding from the frame body is restricted at a position where the action portion is maximally protruded, the action portion of the action member abuts on the abutment member mounted on the sill, dram or rail. Resistance is generated, and the moving speed of the sliding door can be reduced. [0007] When opening the sliding door Conversely, the action member since the opening direction of the sliding door rotation of working member is in a free state, resistance to dynamic transfected sliding door sliding door in the opening direction is released The sliding door can be easily opened. Next, the present invention will be described with reference to an embodiment shown in the drawings. FIG. 1 is an exploded perspective view of a shock absorbing device for a sliding door according to this embodiment, FIG. 2 is a perspective view showing an example in which the shock absorbing device is mounted, and FIG. 3 is a perspective view illustrating a contact member. The shock absorber 1 has a frame 2 which can be mounted on an upper part of a sliding door, has a substantially rectangular parallelepiped shape, and has a space formed therein. The member 3 is accommodated therein, and a holder 4 for supporting an operation member 5 partially projecting from the frame 2 is provided in the support member 3. A contact member 6 that can be mounted in the groove in the longitudinal direction of the gate is configured to be able to contact the action member 5. [0009] frame 2, will be described with reference also to FIG. 2 showing a state was attached to the sliding door S, one of the inner instrumentation can size the stile U on the sliding door S, plate material in U-shaped plan It is bent to form a space inside, and the top and one side are open.
A support hole 21 for a support pin 22 for pivotally supporting the support member 3 is formed at an upper left corner in the drawing on the opposed wide side surface. A screw hole 24 is provided on the narrow side surface, and the tip of the screw 23 mounted on the screw hole 24 is in contact with the narrow side surface of the support member 3 provided inside the frame 2. Next, the supporting member 3 is provided with a pair of wide side surfaces.
A pair of support holes 31 and 32 are provided at the upper left corner and the lower right corner in the drawing. The support hole 31 in the upper left corner is the frame 2
The support pin 2 is coaxial with the support hole 21 of the support pin 2.
The support member 3 is pivotally supported in the frame body 2 by 2. The holder 4 has a mounting hole 4 at the lower right of the pair of wide side surfaces.
1 is formed, and the mounting hole 41 is provided at a position coaxial with the support hole 32 of the support member 3. Therefore, the support holes 32 and 41 between the support member 3 and the holder 4 are provided.
The holder 4 is pivotally supported in the support member 3 by the support pin 33 through which the. The holder 4 has an operating member 5 having an operating portion 51 in which a protruding portion from the frame 2 is formed in an arc shape.
Is fixed. Since the holder 4 is pivotally supported by the support member 3 via the support pin 33 as described above, the operation portion 51 is free to rotate around the support pin 33, but the operation member 5 is At the position where the action portion 51 protrudes to the maximum, that is, the position directly above the support pin 33, the rotation of the sliding door S in the direction opposite to the closing direction is restricted. In the closing direction of the sliding door S (see reference numeral A in FIG. 2), the holder 4 can rotate within a range until the holder 4 comes into contact with the inside of the support member 3. Although not shown, the regulating member is constituted by a projection provided on the inner surface of the support member 3. The material of the working member 5 is preferably made of a synthetic resin in order to obtain a frictional force, but a metal material can also be used. As the shape of the action part 51, the tip part 51a is formed in a semi-cylindrical shape,
It is configured to be fitted with the contact member 6. In the case where a groove is formed at the distal end portion, by forming a protrusion on the contact member side, both can be brought into a fitted state. In the holder 4, a compression spring 42 is interposed between the holder 4 and the support member 3, and lightly urges the action portion 51 side clockwise about the support pin 33. It is stopped at the regulation position where the maximum protrusion amount is obtained. When a force is applied to the action portion 51 in the opening direction of the sliding door S, the holder 4 moves counterclockwise (in FIG. 1) around the support pin 33 in a direction against the elastic force of the compression spring 42. Rotate. When the action member 5 rotates, no longer perpendicular to move the line connecting the working 51 and supporting pin 33 direction, the working portion 51 so that the retracted to the relative to the frame 2. Next, the contact members provided on the threshold, the gate, or the rail side will be described. As shown in FIG.
The contact member 6 is installed in a groove provided in the gate R, and is formed using synthetic resin or rubber. Also,
A groove 61 is formed in a direction along the moving direction of the sliding door S. The cross section of the groove 61 is similar to the shape of the action section 51. As for the thickness, one end of the contact member 6 is slightly thinned so as not to be caught on the end of the contact member 6 at the beginning of contact with the operating portion 51. Other parts except this end have the same thickness,
It may be configured to have an inclined shape gradually thicker on the column side. When the working member 5 is made of synthetic resin, the material of the contact member 6 is formed of rubber or the like, so that the frictional force is increased and a desired resistance force is easily obtained. The groove 61 may be formed in a projecting shape. In this case, by forming the groove in the action portion, resistance to the sliding door can be easily obtained. The operation of the shock absorber 1 will be described with reference to FIG. The embodiment of FIG. 2 differs from the embodiment described above only in the shape of the mounting portion of the frame 2, but the other support members 3, holders 4, and action members 5 have the same configuration. The shock absorber 1 of this example is mounted in a mounting recess provided at an upper corner of the sliding door S such that the compression spring 42 side is the column P side. The contact member 6 is installed at a position near the pillar on the bottom surface of the groove of the gate R. And sliding door S
Moves and approaches the column, the action portion 51 of the action member 5
The contact member 6 comes into contact from the end of the groove 61 and frictional resistance is generated between the two (see FIG. 4A). Further, when the sliding door S moves, the action portion 51 and the groove 61 are in a fitted state, the resistance increases, and the sliding door S is rapidly decelerated.
Therefore, the sliding door S closes quietly without violently colliding with the pillar. At this time, since the action member 5 is regulated to the maximum protruding position by the regulating member, the position does not change during the movement of the sliding door S, and it is possible to reliably apply the resistance to the sliding door S. In the state where the sliding door S is closed (see FIG. 4B), the state in which the action portion 51 and the contact member 6 are in contact is maintained, and the sliding door S can be reliably maintained in the closed state. In addition, when the thickness of the contact member 6 is changed, the frictional force increases sharply as the contact member 6 becomes thicker, so that the speed can be more effectively reduced. When the sliding door S is opened, since the action portion 51 and the contact member 6 remain in contact with each other, the holder 4 resists the elastic force of the compression spring 42 via the action member 5 due to the movement of the sliding door S. And rotate counterclockwise. Therefore, the action part 5
The projecting amount of 1 is reduced, and the action portion 51 is separated from the contact member 6 (see FIG. 4 (c)), so that frictional resistance between the two is eliminated, and the sliding door S can be opened lightly. The amount by which the action portion 41 separates from the contact member 6 is set to 0.
If it is about 5 to 1 mm, the frictional force with the action portion 41 can be almost eliminated. The adjustment of the frictional resistance between the action portion 51 and the contact member 6 is performed by rotating the action member 5 with the screw 23 provided on the frame 2. When the screw 23 is screwed in, the support member 3 rotates counterclockwise around the support pin 22 and the holder 4 is lifted. Therefore, the amount of projection of the action portion 51 of the action member 5 from the frame 2 increases. Conversely, when the screw 23 is returned, the support member 3 rotates clockwise around the support pin 22, so that the holder 4 is lowered and the action portion 51
Is reduced. Thereby, the contact pressure between the action portion 51 and the contact member 6 can be adjusted, so that the resistance force for decelerating the sliding door S can be adjusted. By performing the adjustment even when the action portion 51 or the contact member 6 is worn, the desired resistance can be restored. FIGS. 5 to 8 show another embodiment of the present invention. In this shock absorber 1, a rectangular parallelepiped frame 2 is provided, and a support member for height adjustment is provided inside the frame 2. FIG. 3, a holder 4 is provided on the support member 3, and an operation member 5 is supported in the holder 4. The support member 3
It has a prismatic shape arranged along the bottom of the frame body 2, one upper side surface is formed in an inclined shape, and the bottom of the holder 4 is located on this inclined surface. The slope of the support member 3 is shown in FIG.
As shown in FIG. 5, a fitting groove 34a formed in a return shape is provided, and is fitted to the hook-shaped locking portion 41a at the lower portion of the holder 4. In addition, a long bolt 34c screwed into a nut 34b embedded therein is inserted into the support member 3. The long bolt 34c penetrates through the inside of the support member 3 from the side surface of the frame 2 to reach the opposite side surface of the frame 3, and the rotation of the long bolt 34 causes the support member 3 to move in the longitudinal direction of the bolt. It can be moved along. By this movement, the support member 3 can be moved in the vertical direction in the drawing. A cutout is formed in the neck of the long bolt 34c, and a U-shaped stopper 21a is engaged with the cutout to prevent the long bolt 34c itself from moving in the longitudinal direction. I have. The holder 4 is formed to have a U-shaped cross section which is also open up and down, and an operation member 5 is pivotally supported by a support pin 44 between opposing walls. The lower end of the holder 4 is inclined in accordance with the inclined surface of the support member 3 as described above. The holder 4 is fitted into a stepped recess 21b provided on each of the opposing walls of the frame, and is movable only in the vertical direction, and moves up and down as the support member 3 moves in the horizontal direction. It is. In this embodiment, the action member 5 has an oval shape, and the projecting side is an action portion 51. As shown in FIG. 8, the action portion 51 is formed in a semi-cylindrical cross section, and can be fitted into the groove of the contact member 6. Further, the tension member 42 is provided between the action member 5 and the frame body 2, and the action member 5 is maintained in a state of contact with the inner wall of the holder 4. In this state, the action section 51 is set at a position where the action section 51 protrudes to the maximum.
When a force opposing the spring force of the tension spring 42 acts, the acting member 5 is rotatable in the direction in which the spring extends. Although the contact member 6 is not shown,
This is similar to that shown in the above embodiment. The operation and effect of the shock absorber 1 of this embodiment are the same as those of the above-described embodiment. When the sliding door S is closed, a frictional resistance is generated by the action member 5 and the contact member 6 to move the sliding door S. The speed can be reduced to prevent it from closing vigorously. When the sliding door S is opened, the working member 5 rotates and the amount of protrusion is reduced, so that the working member 5 and the contact member 6 are separated from each other, and can be opened lightly without generating frictional resistance. FIGS. 9 to 12 show another embodiment of the present invention, in which the sliding door S is mounted on the upper frame of the sliding door S.
Instead of one embodiment, a shock absorber 1 mounted on a lower frame is shown. This buffer device 1 is different from the above-described embodiment in that a support member for supporting the holder 4 is provided with an action portion 51.
L-shaped mounting member 7 for fixing to sliding door S
Is mounted on the outside of the frame 2. The frame 2 is
As shown in FIGS. 9 and 10, the plate is bent in a U-shape in plan view to have a space inside, and the upper, lower and one side are open. Further, elongated holes 25 in the vertical direction are formed on the opposed wide side surfaces. Also,
A screw hole 24 for mounting the screw 23 is provided on the narrow side surface, and a tip of the screw 23 is screwed into a screw hole 36 provided in the positioning frame 3. The positioning frame 3 has a U-shaped cross section and is open at least at the lower portion, and is inserted from the open side surface of the frame 2 (see reference numeral B in FIG. 10). On the opposite wide side surface, a long hole 35 elongated in the inclined direction is located at a position overlapping the long hole 25 of the frame 2 in a cross shape. As shown in FIG. 11, the holder 4 is formed by bending a plate to form a U-shape, and the action member 5 is fixed to the open side. A long hole 43 is formed on the opposite side surface of the holder 4 and overlaps the long holes 25 and 35 in the positioning frame 3 (refer to the symbol C ′ for the assembling direction). These slots 25,
The positioning frame 3 and the holder 4 are integrally assembled in the frame 2 by the support pins 22 through which 35 and 43 are inserted. The holder 4 holds the support pin 2 by a tension spring 42.
2, the holder 4 is brought into contact with the regulating portion 52 by this spring force, and the action portion 5
The holder 4 is positioned at a position where 1 is the maximum protrusion amount. Further, the holder 4 can be rotated clockwise about the support pin 22 against the elastic force of the tension spring 42 in the same manner as the above embodiment. The L-shaped mounting member 7 is made of synthetic resin and is integrally formed in a shape along the upper part and the side surface of the frame 2. This L
The mold mounting member 7 is formed with a fitting groove 71 having a C-shaped cross section,
The upper part of the frame 2 is fitted with a fitting projection 26 having a C-shape in a side view. Note that the L-shaped mounting member 7 has a fixing hole 72 through which a fixing screw is inserted when the fixing screw is mounted on the sliding door S. The shock absorber 1 of this embodiment is mounted by inserting it from the pillar side by forming a mounting space having the same shape as the outer shape in the lower frame of the sliding door. After insertion, the fixing hole 72 of the L-shaped mounting member 7 is used to prevent the fixing member such as a wood screw from slipping out. Then, as shown in FIG. 12, a contact member 6 is attached in the sill or the groove of the rail. The contact member 6 is substantially the same as that of the embodiment described above, has a groove 62 formed along the moving direction of the sliding door S, and has a slightly uneven surface. When the sliding door S is opened and closed, it operates in the same manner as in the second embodiment. When the sliding door S is closed, the rotation is restricted at a position where the operating portion 41 has the maximum protrusion amount. A resistance force is generated by hitting the member 6, the moving speed of the sliding door S can be reduced, and the sliding door S can be closed without impact. When the sliding door S is opened, the holder 4 pivots about the support pin 22 (see reference numeral D) as shown by a virtual line in FIG. Since it separates from the contact member 6, it can be opened smoothly without resistance. FIG. 13 shows the shock absorber 1 of this embodiment.
Is mounted on the upper frame of the sliding door S, and in this case, the same operation and effect can be obtained. Further, another embodiment will be described with reference to FIG. The shock absorber 1 of this embodiment is different in shape from the shock absorber of the above embodiment, but has the same basic configuration. Corresponding portions are denoted by the same reference numerals, and redundant description will be omitted. In this embodiment, the regulating members for the spring and the holder are omitted in the drawing, but the spring and the regulating member are set so that the action portion 51 is at the maximum projecting position. The operation and effect are the same as those in the above embodiment. In the above embodiment, the one in which the working member 5 is formed in a circular shape is not limited to a circular shape, but may be an elliptical shape or the like. In the case of a circular shape, it may be constituted by a member that rotates like a door roller. In this case, since the resistance force due to friction is smaller than when the sliding door is fixed, it is suitable for a case where the weight of the sliding door is light. When a rotating member is used, FIG.
As shown in FIG. 5 , a member 91 to be brought into contact with the circumferential portion of the rotating portion 90 can be provided to regulate the rotation of the rotating portion. With this configuration, the resistance due to friction can be increased. [0032] As is evident from the foregoing description, according to the present invention, the frame to insert the closing direction side of the sliding door at the top or bottom of the sliding door
It can be mounted to. Then, when the sliding door is closed, since the rotation of the action portion of the action member protruding from the frame body is restricted at a position where the action portion is maximally protruded, the action portion of the action member abuts on the abutment member mounted on the sill, dram or rail. A resistance force is generated, the moving speed of the sliding door can be reduced, and the sliding door can be closed quietly without colliding with a pillar or the like. When opening the sliding door, on the other hand, the acting member is to open the way of the sliding door
In the direction, the rotation of the action member is in a free state,
Resistant is released on the kinematic transfected sliding door sliding door in the opening direction
The sliding door can be opened smoothly . The shock absorber can be mounted in a sliding door, and is compact and simple in structure.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a sliding door shock absorber of this embodiment. FIG. 2 is a perspective view showing an example in which a shock absorber is attached. FIG. 3 is a perspective view illustrating a contact member. FIG. 4 is a diagram for explaining the operation of the embodiment. FIG. 5 is a perspective view of a shock absorber according to another embodiment. FIG. 6 is a sectional view of the embodiment. FIG. 7 is a diagram illustrating a connection state between a support member and a holder. FIG. 8 is a perspective view showing a holder and an operation member. FIG. 9 is a perspective view showing still another embodiment. FIG. 10 is an exploded perspective view of the above embodiment. FIG. 11 is a diagram illustrating a connection state between a support member and a holder. FIG. 12 is a perspective view of a contact member. FIG. 13 is a perspective view showing a state where the above embodiment is mounted on an upper frame. FIG. 14 is a perspective view showing still another embodiment. FIG. 15 is a perspective view showing an operation member of another embodiment. [Description of Signs] 1 Buffer device 2 Frame 3 Support member 5 Working member 6 Contact member

Claims (1)

(57) [Claims 1] A frame which can be mounted on the upper or lower part of the sliding door from the closing direction side of the sliding door, and which has a function of projecting from the frame. An operating member having a portion is provided, and the operating portion is pivotally supported within the frame so as to be rotatable in the opening and closing direction of the sliding door, and the operating portion side is moved when the sliding door is moved in the closing direction. The rotation is restricted at the position where it protrudes to the maximum, and the rotation of the operation member is free when the sliding door is moved in the opening direction. The support member supporting the operation member has a protrusion on the operation side. The amount is adjustable, and the screw that adjusts the amount of protrusion is used to close the sliding door.
Provided on the direction, threshold, the door lintel or rail side provided abutting member attachable along its longitudinal direction, the moving speed of the working member and contact with the sliding door during the movement of the closing direction of the sliding door A shock absorbing device for a sliding door, characterized in that it has a structure for lowering pressure.