JP2013064307A - Cylinder device for automatically closing type sliding door control - Google Patents

Abstract

PROBLEM TO BE SOLVED: To implement a stable closing operation of a sliding door.SOLUTION: The cylinder device for automatically closing type sliding door control comprises an expanded packing, a tight-contact washer, an operation body, an oil supply sponge, an O-ring, and a cylinder shaft. The expanded packing includes a first central through hole while tightly contacting an expanded terminal portion to an inner circumferential surface of a cylinder tube body. The tight-contact washer is provided in a direction inverse to the expanded terminal portion of the expanded packing and includes a second central through hole. The operation body has a third central through hole and on its outer peripheral surface, an installation groove is formed. The operation body is comprised of a body part, a head part and a connection part. In the body part, an O-ring groove portion and an operation groove portion are formed on an inner peripheral surface of the third central through hole. The head part supports the expanded packing. The connection part connects the body part and the head part and locks the expanded packing and the tight-contact washer through the first and second central through holes. The oil supply sponge is inserted into the installation groove. The O-ring is inserted into the O-ring groove portion. The cylinder shaft is inserted from a side of the body part into the third central through hole and in its inserted terminal portion, a disconnection pin and a lock plate are provided.

Description

  The present invention relates to a sliding door control cylinder, and more particularly to a self-closing type sliding door control cylinder device.

  In general, as shown in FIG. 1, a self-closing sliding door is provided with a door 101 that is opened to one side, and a cylinder 102, a stopper 106, and a pulley 103 are installed on the top of the door 101. The sliding door 101 is provided with a weight 105 connected to the wire 104 via the pulley 103. FIG. 1 shows a state in which the door 101 is closed, but when the user moves the door 101 in the A direction, the door 101 moves in the A direction, which is the left side in FIG. 2, as shown in FIG. As a result, the weight 105 rises. Thereafter, when the door 101 is completely moved in the A direction, as shown in FIG. 3, the door 101 is completely opened, the cylinder 102 is completely separated from the stopper 106, and the weight 105 is further raised. In this state, when the user releases his / her hand from the door 101, the door 101 is gradually closed in the B direction which is the right direction in FIGS. In the operation process, when the end of the cylinder 102 comes into contact with the stopper 106, the door 101 is slowly closed by the action of the cylinder 102.

  FIG. 4 shows the detailed structure of the cylinder 102 which is the main part of such a conventional self-closing sliding door. 4A shows a state of the cylinder 102 in the process of closing the door, and FIG. 4B shows a state of the cylinder 102 when the door is opened. In the cylinder 102, a cylinder shaft 120 provided inside the cylinder tube 110, a packing 121 provided at the tip of the cylinder shaft 120, and a fixed shaft 123 provided behind the packing 121 are integrally coupled. It is configured. A support washer 125 is provided between the tip of the cylinder shaft 120 and the packing 121. A through hole 122 is provided at the center of the packing 121.

  A support 131 is provided at the end of the cylinder tube 110 opposite to the end into which the cylinder shaft 120 is inserted, and supports the cylinder tube 110. A cylinder shaft support 133 is provided at the end of the cylinder shaft 120 opposite to the end inserted into the cylinder tube 110 to support the cylinder shaft 120.

  In the cylinder shaft 120, it is preferable that the center axes of the fixed shaft 123 and the cylinder tube 110 coincide with each other due to the characteristics of the cylinder. A finishing member 132 is provided at the opening of the cylinder tube 110 in order to accurately match the central axes of the two. However, if the inner diameter of the finishing member 132 is made equal to the outer diameter of the fixed shaft 123, the cylinder 102 is caused by the frictional force generated between the inner peripheral surface of the finishing member 132 and the outer peripheral surface of the fixed shaft 123. Becomes difficult to operate. Therefore, the outer diameter of the fixed shaft 123 is formed smaller than the inner diameter of the finishing member 132 so that the fixed shaft 123 is separated from the finishing member 132 in order to reduce the frictional force.

  However, in such a conventional self-closing sliding door cylinder, since the fixed shaft 123 is formed apart from the finishing member 132, the cylinder shaft 120 is finely inclined when the cylinder 102 is operated. . For this reason, the support washer 125 provided at the tip of the cylinder shaft 120 is tilted, and a gap is formed between the support washer 125 and the packing 121, and air flowing in through the through hole 122 enters the gap, so that the hydraulic pressure is appropriately adjusted. There is a problem that the door closing operation becomes unstable because the door does not operate.

  Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a new and improved self-closing sliding which can stably perform a door closing operation. The object is to provide a door control cylinder device.

  In order to solve the above-described problem, according to one aspect of the present invention, there is provided a control cylinder device used in an automatic closing type sliding door, wherein an expanded end portion is in close contact with an inner peripheral surface of a cylinder tube body 3, The expansion type packing 10 having one central through hole 11 and the surface having the expansion end of the expansion type packing 10 are provided in the opposite direction, and are formed apart from the inner peripheral surface of the cylinder tube 3. The contact type washer 20 having the second center through hole 21, the second center through hole 21 of the contact type washer 20, and the first center through hole 11 of the expansion packing 10. And the third center through hole 31 is formed, and the contact-type washer 20 and the expansion-type packing 10 are locked, and are in contact with the contact-type washer 20. The close-contact type washer 20 And at least one installation groove 32 is formed on the outer peripheral surface, and O− is formed on the inner peripheral surface of the third central through hole 31. A body portion 35 formed by separating the ring groove portion 33 and the operating groove portion 34 from each other, a head portion 36 that contacts the inside of the expansion end portion of the expansion type packing 10 and supports the expansion type packing 10, and the above An operating body 30 including a connecting portion 37 that connects the body portion 35 and the head portion 36 to engage the close-contact type washer 20 and the expansion-type packing 10, and the installation groove The oil supply sponge 40 inserted into and fixed to the inner peripheral surface of the cylinder tube 3 and the O-ring groove 33 is inserted into and fixed to the third center of the operating body 30. Arranged to protrude inside the through hole 31 The O-ring 50 and the third central through hole 31 of the operating body 30 are inserted from the body 35 side, and an interrupting pin 61 is provided at the inserted end, and is in contact with the interrupting pin 61. And a cylinder shaft 60 provided with a locking plate 65 at a position opposite to the tip of the intermittent pin 61, a self-closing sliding door control cylinder device is provided.

  Further, the intermittent pin 61 may have a conical shape, and the inclined surface of the intermittent pin 61 may be in close contact with the inner peripheral surface of the O-ring 50 to block air.

  Moreover, the said expansion type packing 10, the said contact | adherence type washer 20, the said operation body 30, the said sponge 40 for oil supply, and the said O-ring 50 may be multiply formed in the operation direction.

  The cylinder shaft 60 is provided with a magnet 67 at the end opposite to the end inserted into the operating body 30 of the cylinder shaft 60, and a metal plate 73 provided at a position facing the magnet 67 at a distance. A support tool 70 is further provided, and the cylinder shaft support tool 70 is provided along the tilt direction of the first inclined surface 78 at a substantially inclined center of the first inclined surface 78 and the first inclined surface 78. A guide rail 77 having a substantially T-shaped cross section, an upper receiving base 79 provided at the upper end of the first inclined surface 78, and a lower receiving base 76 provided at the lower end of the first inclined surface 78 , A second inclined surface 74 corresponding to the first inclined surface 78, and approximately in the center of the second inclined surface 74 along the inclination direction of the second inclined surface 74. A rail groove 72 provided corresponding to the guide rail 77; And the rail groove 72, a sliding member 71 which is coupled to the guide rails 77 of the rail member 75, may be provided.

  As described above, the self-closing type sliding door control cylinder device according to the present invention prevents the air from leaking in the closing direction of the sliding door when the sliding door is automatically closed. When the cylinder is automatically closed and comes into contact with the stopper, the cylinder pressure is released from the rear, and the pressure that is released slowly closes. Therefore, there is an advantage that the sliding door is stably closed. That is, when the sliding door is automatically closed, air is prevented from leaking rearward, and the sliding door can be stably closed.

  Further, since the failure rate and the failure rate can be reduced by separating and connecting the cylinder shafts, there is also an advantage that it can be used for a long time.

It is an opening operation | movement figure of the sliding door which concerns on a prior art. It is an opening operation | movement figure of the sliding door which concerns on a prior art. It is an opening operation | movement figure of the sliding door which concerns on a prior art. It is a cylinder operation | movement figure of a prior art. It is a cylinder operation | movement figure at the time of the door opening of the cylinder apparatus for self-closing type sliding door control which concerns on this invention. It is an operation | movement figure at the time of the door closing which concerns on this invention. It is an operation | movement figure of the cylinder apparatus which concerns on this invention. It is a disassembled perspective view of the cylinder apparatus which concerns on this invention. It is a coupling | bonding figure of the cylinder apparatus which concerns on other embodiment which concerns on this invention. It is a use condition figure concerning the present invention. It is a use condition figure of the cylinder axis support concerning the present invention. It is a use condition figure of the cylinder axis support concerning the present invention. It is a use condition figure of the cylinder axis support concerning the present invention.

  Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition, in this specification and drawing, about the component which has the substantially same function structure, duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  5 and 6 are conceptual diagrams for explaining the configuration and operation of the self-closing sliding door control cylinder device according to the present invention. FIG. 5 shows the movement of the cylinder device when the door is opened, and FIG. 6 shows the movement of the cylinder device when the door is closed. FIG. 8 shows the state when the self-closing sliding door control cylinder device according to the present invention is disassembled into each member.

  5, 6, and 8, the self-closing type sliding door control cylinder device according to the present invention includes an expansion-type packing 10, a close-contact type washer 20, an operating body 30, an oil supply sponge 40, an O A ring 50 and a cylinder shaft 60;

  The expansion type packing 10 is configured such that the expansion end is in close contact with the inner peripheral surface of the cylinder tube 3, and a first center through hole (through hole) 11 is formed at the center of the expansion type packing 10. It is formed. The expansion type packing 10 is formed of a material such as a synthetic resin, and the expansion end portion is in close contact with the inner peripheral surface of the cylinder tube body 3 so that the space between the expanded end portion and the inner peripheral surface of the cylinder tube body 3 is increased. Configured to prevent air from passing through.

  A contact washer 20 is provided behind the expansion type packing 10. The close contact washer 20 is formed on the inner surface of the cylinder tube 3 at a predetermined interval because air needs to move around the outer peripheral edge thereof. Further, the contact type washer 20 is formed with a second center through hole 21.

  The close contact type washer 20 is formed of the same material as that of the expansion type packing 10, but it is preferable that the adhesion type washer 20 can be easily bonded and separated from the expansion type packing 10. Further, the rear surface of the close contact type washer 20 (the surface opposite to the surface facing the expansion packing 10) is in close contact with the coupling side front surface 39 of the operating body 30 so as to block the air flow. The

  An operating body 30 is provided so as to penetrate from the rear side of the close contact type washer 20 to the front side of the expansion type packing 10.

  The actuating body 30 has a third central through hole 31 formed at the center, a body portion 35 positioned behind the close contact washer 20, a head portion 36 positioned in front of the expandable packing 10, and a body portion. The connection part 37 which connects the part 35 and the head part 36, and the contact | adherence type washer 20 and the expansion type packing 10 are latched is formed.

  The body portion 35 supports the contact type washer 20 by bringing the coupling-side front surface 39 into contact with the rear surface of the contact type washer 20. The body portion 35 is formed at a predetermined interval on the inner peripheral surface of the cylinder tube 3, and at least one installation groove 32 is formed on the outer peripheral surface. An O-ring groove portion 33 and an operation groove portion 34 are formed on the inner peripheral surface of the third central through hole 31 of the body portion 35. An O-ring 50 (to be described later) is inserted and fixed in the O-ring groove 33, and a locking plate 65 of the cylinder shaft 60 is locked in the operating groove 34.

  The head portion 36 supports the expandable packing 10 by contacting the front inner surface of the expandable packing 10 coupled to the connecting portion 37. At this time, the head portion 36 and the front inner surface of the expansion-type packing 10 are spaced apart from each other, and are in close contact with or separated from each other by operation of the cylinder shaft 60 in the front-rear direction (axial direction).

  The connecting portion 37 connects the body portion 35 and the head portion 36, and the close contact type washer 20 and the expandable packing 10 are locked to the connecting portion 37. As shown in FIG. 5, when the cylinder shaft 60 moves rearward, air flows into the space between the connecting portion 37 and the first central through hole 11 of the expansion type packing 10. Further, the close contact type washer 20 located behind the expansion type packing 10 is fixed in close contact with the front surface 39 of the operating body 30.

  The oil supply sponge 40 is inserted into the installation groove 32 of the body portion 35 to be attached. The oil supply sponge 40 is formed of a material that allows air to pass therethrough, and is disposed so that its outer peripheral surface is in close contact with the inner peripheral surface of the cylinder tube 3, whereby the cylinder tube 3 and the operating body 30. And the central axis coincide with each other. The oil supply sponge 40 is preferably formed of a wool material, and when installed, the oil supply sponge 40 is immersed in oil so that the body portion 35 can be smoothly operated in the cylinder tube 3.

  An O-ring 50 is sandwiched and fixed in the O-ring groove 33. The O-ring 50 comes into contact with an intermittent pin 61 of a cylinder shaft 60 to be described later, and is fixed by being sandwiched between inner peripheral surfaces of the third central through hole 31 of the operating body 30.

  A cylinder shaft 60 is provided behind the operating body 30. An interrupting pin 61 is formed at the tip of the cylinder shaft 60 and is inserted into the third central through hole 31 from the rear of the operating body 30, and the operating groove portion 34 in the operating body 30 is formed behind the intermittent pin 61. A locking plate 65 to be fitted is integrally formed.

  The locking plate 65 is locked in the operating groove 34 when the cylinder shaft 60 moves forward and backward, and prevents the cylinder shaft 60 from being detached from the operating body 30.

  The intermittent pin 61 is formed in a conical shape with a sharp tip, and even if the distal end is not inserted perpendicularly to the O-ring 50, the inclined surface of the intermittent pin 61 is in close contact with the O-ring 50 to allow air to flow. Configured to block. At this time, since it should be easy to insert into the O-ring 50 from any angle, it is preferably configured in a conical shape, and can be inserted even if the end portion is not necessarily a sharp shape like a conical shape. Any shape is acceptable.

  A support body 81 is provided at the end portion of the cylinder tube body 3 opposite to the end portion into which the cylinder shaft 60 is inserted, and supports the cylinder tube body 3. An air passage is formed in the support 81, and air can move between the inside and the outside of the cylinder tube 3 through the air passage. Further, the support 81 is further provided with an opening in a direction substantially perpendicular to the air passage, and an air amount adjusting member 82 is inserted into the opening so as to close the air passage. The air amount adjusting member 82 is inserted substantially perpendicular to the air passage and closes the air passage. By adjusting the length by which the air amount adjusting member 82 is inserted into the support body 81, the area in which the air amount adjusting member 82 blocks the air passage can be adjusted. The amount of air movement between the two can be adjusted. In particular, when the cylinder shaft 60 moves in the direction in which the cylinder shaft 60 is inserted into the cylinder tube 3, that is, when the cylinder shaft 60 moves to the left in FIG. 5 or FIG. The speed at which the cylinder shaft 60 moves can be adjusted by adjusting the amount of air discharged to the outside.

  Next, the operation according to the present invention having the above configuration will be described.

  First, as shown in FIG. 10, the control cylinder device according to the present invention is installed on the upper part of the self-closing sliding door 5.

  At this time, when the sliding door 5 is closed, the end of the cylinder shaft 60 is in contact with the cylinder shaft support 70. When the sliding door 5 is opened in this state, the cylinder tube 3 fixed to the sliding door 5 also moves in the left direction in FIG. At this time, the inside of the cylinder tube 3 is in the state shown in FIG.

  At this time, as shown in FIG. 5, when the cylinder tube body 3 moves to the left along the sliding door 5, the expansion-type packing 10 moves, and the contact-type washer 20 and the expansion-type packing 10 move together. In the meantime, a space in which air moves is generated between the expansion type packing 10 and the head portion 36 of the operating body 30. Through the space, the cylinder tube 3 moves to the left side while air moves from the right side to the left side, and the sliding door 5 opens while moving to the left side.

  On the other hand, when the sliding door is closed, the outer end of the cylinder shaft 60 with the magnet 67 comes into contact with the cylinder shaft support 70 and then the cylinder tube 3 that has moved in the left direction in FIG. Covers the cylinder shaft 60 and moves in the right direction.

  At this time, as shown in FIG. 6, the intermittent pin 61 provided on the left side of the cylinder shaft 60 is inserted inside the O-ring 50 in the operating body 30, and the inclined surface of the intermittent pin 61 and the O-ring 50 are inserted. The inner peripheral surface of the cylinder shaft 60 is in close contact with each other to block the air flow, and the front locking surface 69 of the cylinder shaft 60 is in contact with the rear surface 38 of the operating body 30.

  At this time, as shown in FIG. 6, after the air moving from the left side (I side) to the right side (B side) in the cylinder tube 3 hits the front surface of the expansion packing 10, the right side (B side) Since there is no moving air passage, the cylinder tube 3 moves slowly to the right for closing the sliding door 5 due to the contact between the expanded end of the expandable packing 10 and the inner peripheral surface of the cylinder tube 3. The sliding door 5 is gradually closed.

  On the other hand, as shown in FIG. 7, the cylinder shaft 60 substantially tilts the right side (rear side) downward in the cylinder tube 3 due to the length and weight of the cylinder shaft 60. That is, the center axis of the cylinder shaft 60 is inclined with respect to the center axis of the cylinder tube 3. FIG. 7A shows a state when the door is closed, and FIG. 7B shows a state when the door is opened. In either case, since the operating body 30 and the cylinder shaft 60 are configured separately, the horizontal maintenance of the operating body 30 is not hindered, so that the operation is smooth and the failure rate is low. .

  Further, the expansion type packing 10, the close contact type washer 20, the operating body 30, the oil supply sponge 40 and the O-ring 50 may be configured to be double or multiple. At this time, as shown in FIG. 9, the O-ring 50 is attached only to the right (rear) portion of the third central through hole 31 of the operating body 30 where the intermittent pin 61 provided on the cylinder shaft 60 contacts. You may arrange | position and use.

  FIGS. 11-13 is the figure which showed the structure of the cylinder shaft 60 and the cylinder shaft support 70 which concern on this invention.

  As described above, the magnet 67 is provided at the outer end of the cylinder shaft 60, and the cylinder shaft support 70 having the metal plate 73 is fixedly installed at a spaced position facing the magnet 67.

  The operation of the cylinder shaft support 70 when the sliding door 5 is closed will be described with reference to FIG. When the sliding door 5 is gradually closed from the opened state, first, as shown in FIG. 12A, the magnet 67 provided at the end of the cylinder shaft 60 is moved to the metal plate 73 of the cylinder shaft support tool 70. To touch. Next, as shown in FIG. 12B, the magnet 67 and the metal plate 73 are magnetically coupled, and the center axis of the cylinder shaft 60 moves so as to slide upward, and the closing is completed.

  On the other hand, when the sliding door 5 is opened, the cylinder 67 is moved from the state in which the magnet 67 provided at the end of the cylinder shaft 60 is magnetically coupled to the cylinder shaft support 70 as shown in FIGS. 12 and when the finishing member 8 formed in the right opening of the cylinder tube 3 contacts the rear surface 38 of the operating body 30, the cylinder tube 3 moves to the left. The cylinder shaft 60 and the cylinder shaft support 70 which are coupled by magnetic force are separated by the force to be applied.

  Next, the configuration of the cylinder shaft support 70 will be described with reference to FIGS. 11 and 13. The cylinder shaft support 70 is composed of a rail body 75 located at the lower stage and a sliding body 71 provided on the upper portion thereof. Further, the rail body 75 has a lower receiving base 76 formed at the front, an upward first inclined surface 78 formed at the rear of the lower receiving base 76, and a T-shape at the center of the first inclined surface 78. A guide rail 77 is formed, and an upper receiving base 79 is formed above the first inclined surface 78. That is, the rail body 75 has a first inclined surface 78, and has a substantially T-shaped cross section at the approximate center of the first inclined surface 78 along the inclination direction of the first inclined surface 78. A guide rail 77 is formed, an upper receiving base 79 is further formed at the upper end of the first inclined surface 78, and a lower receiving base 76 is further formed at the lower end of the first inclined surface 78. . The sliding body 71 has a second inclined surface 74 corresponding to the first inclined surface 78 formed on the lower surface, and a rail groove 72 corresponding to the guide rail 77 formed on the second inclined surface 74. Is done. That is, the sliding body 71 has a second inclined surface 74 corresponding to the first inclined surface 78 of the rail body 75, and the second inclined surface 74 is provided at the approximate center of the second inclined surface 74. A rail groove 72 having a substantially T-shaped cross section is formed so as to correspond to the guide rail 77 of the rail body 75 along the inclination direction. That is, the rail body 75 and the sliding body 71 are connected by the guide rail 77 and the rail groove 72 so that the first inclined surface 78 and the second inclined surface 74 are in contact with each other. The sliding body 71 can move along the guide rail 77, that is, in the inclination direction of the first inclined surface 78 with the rail groove 72 connected to the guide rail 77. A metal plate 73 is provided on the surface of the sliding body 71 in contact with the magnet 67 provided at the end of the cylinder shaft 60. As shown in FIGS. 12 (a) and 12 (b), the cylinder shaft When the magnet 67 provided at the end of 60 pushes the metal plate 73, the sliding body 71 can move so as to slide along the inclination.

  With such a configuration, twisting of the cylinder shaft 60 can be prevented.

  The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to such examples. It is obvious that a person having ordinary knowledge in the technical field to which the present invention pertains can come up with various changes or modifications within the scope of the technical idea described in the claims. Of course, it is understood that these also belong to the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 3 Cylinder tube 10 Expanding type packing 11 1st center through-hole 21 2nd center through-hole 31 3rd center through-hole 20 Close contact type washer 30 Actuator 32 Installation groove 33 O-ring groove part 34 Actuation groove part 35 Body Part 36 Head part 37 Connection part 40 Oil supply sponge 50 O-ring 60 Cylinder shaft 61 Intermittent pin 65 Locking plate 67 Magnet 70 Cylinder shaft support 71 Sliding body 72 Rail groove 73 Metal plate 74 Second inclined surface 75 Rail Body 76 Lower catch stand 77 Guide rail 78 First inclined surface 79 Upper catch stand

Claims (4)

A cylinder device for control used in a self-closing sliding door,
An expanded end packing having an expanded end portion in close contact with the inner peripheral surface of the cylinder tube and having a first central through hole;
A contact type washer provided in a direction opposite to the surface having the expanded end portion of the expansion type packing, formed apart from the inner peripheral surface of the cylinder tube, and having a second central through hole;
The second central through hole of the close contact washer and the first central through hole of the expansion packing are disposed, and a third central through hole is formed; and The close contact type washer and the expansion type packing are locked, and the close contact type washer is in contact with the close contact type washer, and is formed separately from the inner peripheral surface of the cylinder tube, At least one installation groove is formed on the outer peripheral surface, and a body portion formed by separating an O-ring groove portion and an operation groove portion on the inner peripheral surface of the third center through hole, and the expansion type packing is expanded. A head portion that contacts the inside of the open end portion, supports the expansion type packing, and connects between the body portion and the head portion, and the contact type washer and the expansion type packing are locked. An actuating body composed of a connecting portion,
An oil supply sponge that is inserted and fixed in the installation groove and is in close contact with the inner peripheral surface of the cylinder tube,
An O-ring that is inserted into and fixed to the O-ring groove and is disposed so as to protrude inside the third central through hole of the operating body;
The actuating body is inserted into the third center through hole from the body side, and an interrupted pin is provided at the inserted end, is in contact with the interrupted pin, and is opposite to the tip of the interrupted pin. A cylinder shaft provided with a locking plate at a position;
A cylinder device for self-closing type sliding door control, comprising:   2. The intermittent pin according to claim 1, wherein the intermittent pin has a conical shape, and an inclined surface of the intermittent pin is in close contact with an inner peripheral surface of the O-ring to block air. Cylinder device for self-closing type sliding door control as described.   3. The automatic according to claim 1, wherein the expansion type packing, the close contact type washer, the operating body, the oil supply sponge, and the O-ring are formed in multiple in the operating direction. Cylinder device for closed type sliding door control. A magnet is provided at the end opposite to the end inserted into the cylinder shaft operating body,
A cylinder shaft support provided with a metal plate at a spaced position facing the magnet is further provided,
The cylinder shaft support is
A first inclined surface, a guide rail having a substantially T-shaped cross-section provided along the inclination direction of the first inclined surface at an approximate center of the first inclined surface, and the first inclined surface A rail body having an upper receiving base provided at the upper end and a lower receiving base provided at the lower end of the first inclined surface;
A second inclined surface corresponding to the first inclined surface, a rail groove corresponding to the guide rail provided along the inclination direction of the second inclined surface at the approximate center of the second inclined surface; A sliding body in which the rail groove is coupled to the guide rail of the rail body;
The cylinder device for self-closing type sliding door control according to claim 1, comprising:

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