JP6752700B2 - Door closer stop device - Google Patents

Description

The present invention relates to a door closer stop device, and in particular, holds a door at a predetermined opening angle by holding a slider that is guided and moved by a guide rail as the door opens and closes at a predetermined position on the guide rail. Regarding the stop device of the configuration to be used.

As a stop device of this type, the one described in Patent Document 1 below is known. The stop device includes a slider that reciprocates while being guided by a main body case that is a guide rail, and a locking means that locks the slider at a predetermined position. A locking hole is formed in the slide plate of the slider, and the locking means includes a locking body which is a steel ball that engages with the locking hole. A coil spring is arranged below the locking body, and the coil spring presses and urges the locking body upward. Then, when the slider approaches the locking means, the locking body engages with the locking hole of the slide plate. This keeps the slider in place and, as a result, the door at a given opening angle.

However, since the locking body and the coil spring are arranged side by side in the guide rail and the center line of the coil spring is along the vertical direction, the arrangement space of the coil spring is small, and the length and expansion / contraction amount of the coil spring must be sufficiently secured. Is not easy. Therefore, there is a problem that it is difficult to increase the engaging force between the locking hole and the locking body, and it is difficult to increase the holding force of the door at the time of stopping.

Jikkai Sho 61-73358

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a door closer stop device capable of ensuring a large holding force at the time of stopping even in a limited space inside a guide rail. To do.

The present invention has been made to solve the above problems, and the door closer stop device according to the present invention has a slider that moves guided by a guide rail as the door opens and closes, and a predetermined position of the guide rail. A door closer stop device provided with a catcher for holding the slider, one of the slider and the catcher having an engaging recess recessed in a direction orthogonal to the longitudinal direction of the guide rail. The other of the slider and the catcher is between the engaging ball that can be engaged in the engaging recess, the coil spring for urging the engaging ball to the engaging side, and the coil spring and the engaging ball. The coil spring is arranged so that the center line of the coil spring is along the longitudinal direction of the guide rail, and the transmission ball is arranged at an angle of the spring force of the coil spring. Is changed and transmitted to the engaging ball.

In the door closer stop device having this configuration, the slider reciprocates on the guide rail as the door opens and closes. A catcher is provided at a predetermined position on the guide rail, and when the catcher holds the slider at a predetermined position, the door is held at a predetermined opening angle. That is, the slider is held by the catcher by engaging the engaging ball of the slider and the catcher with the engaging recess of one of the slider and the catcher. Since the coil spring is arranged along the longitudinal direction of the guide rail on the other side of the slider and the catcher, the degree of freedom in designing the coil spring is high, and a sufficient amount of expansion and contraction of the coil spring can be easily secured. A transmission ball is arranged between the coil spring and the engaging ball, and the spring force of the coil spring is transmitted to the engaging ball via the transmission ball. When the spring force of the coil spring is transmitted to the engaging ball via the transmission ball, the angle of the spring force of the coil spring changes. Therefore, a large urging force is applied to the engaging ball, and a state in which the engaging ball and the engaging recess are securely locked can be obtained.

In particular, the other of the slider and the catcher is provided with a housing containing an engaging ball, a transmission ball, and a coil spring, in order to stop the movement of the transmission ball to the opposite side of the coil spring at a predetermined position on the inner surface of the housing. It is preferable that the transmission ball comes into contact with the regulation surface in a state where the regulation surface is provided and the engagement ball is engaged with the engagement recess. When the transmission ball is in contact with the regulation surface on the inner surface of the housing when the engagement ball is engaged with the engagement recess in this way, the position of the transmission ball when the engagement ball is engaged with the engagement recess is It will be fixed in a predetermined position. Once the position of the transmission ball is determined, the positional relationship between the transmission ball and the engaging ball is also determined. The spring force transmitted to the engaging ball changes depending on the angle between the straight line connecting the center of the engaging ball and the center of the transmitting ball and the engaging direction between the engaging ball and the engaging recess. If this angle is referred to as an inter-ball angle, the smaller the inter-ball angle, the greater the urging force that pushes the engaging ball toward the engaging side. On the contrary, as the angle between the balls increases, the urging force for urging the engaging balls decreases. Therefore, when the position of the transmission ball in the state where the engaging ball is engaged with the engaging recess is determined, the angle between the balls is also determined. Therefore, it is possible to suppress variations in the urging force due to component accuracy, assembly accuracy, etc., it is possible to reliably apply the desired urging force to the engaging ball, and it is easy to secure the holding force of the door as designed.

Further, the angle of the straight line connecting the center of the engaging ball and the center of the transmitting ball when the transmitting ball is in contact with the regulation surface is changed to change the angle of the engaging ball and the engaging recess with respect to the engaging direction. It is preferable to have a mechanism. That is, by providing the angle changing mechanism for changing the angle between the balls, the urging force applied to the engaging ball can be adjusted, and the holding force of the door can be adjusted.

As described above, the coil spring is arranged along the longitudinal direction of the guide rail, the transmission ball is interposed between the coil spring and the engagement ball, and the spring force of the coil spring is changed by the transmission ball to change the angle of the engagement ball. By transmitting to, a large holding force can be secured when the door is held at a predetermined opening angle.

The schematic front view which shows the whole structure of the door closer in one Embodiment of this invention. It is a schematic plan view which shows the whole structure of the door closer, (a) shows the state when the door is fully closed, and (b) shows the state in the middle of opening a door. It is a schematic plan view which shows the whole structure of the door closer, and shows the state which the door is held at a predetermined opening angle. It is a cross-sectional view seen from the front which shows the stop device of the door closer, and shows the stop release state. It is a bottom view including a partial cross section which shows the stop device of the door closer, and shows the stop release state. It is a cross-sectional view seen from the front which shows the stop device of the door closer, and shows the state in the process of releasing a stop. It is a sectional view seen from the front which shows the stop device of the door closer, and shows the stop state. It is a bottom view including a partial cross section which shows the stop device of the door closer, and shows the stop state. A stop device for a door closer according to another embodiment of the present invention is shown, (a) is a cross-sectional view seen from the front and shows a stop release state, and (b) is a view of a main part of a catcher seen from the side. It is a cross-sectional view seen from the front which shows the stop device of the door closer and shows the stop state, (a) shows the state which the angle between balls is small, and (b) shows the state which the angle between balls is large. It is sectional drawing seen from the front which shows the stop device of a door closer in another embodiment of this invention, and shows the stop release state. It is a bottom view including a partial cross section which shows the stop device of the door closer, and shows the stop release state. It is a sectional view seen from the front which shows the stop device of the door closer, and shows the stop state. It is a bottom view including a partial cross section which shows the stop device of the door closer, and shows the stop state.

Hereinafter, a door closer stop device according to an embodiment of the present invention will be described with reference to FIGS. 1 to 8. 1 to 3 show the overall configuration of the door closer. The door closer in this embodiment is a so-called concealed type door closer, and is a door closer body 3 arranged inside the uppermost part of the door 1, and an upper end portion of a spindle 4 whose one end is along the vertical direction of the door closer body 3. An arm 5 that is mounted and fixed so as not to rotate relative to the other and rotates in the horizontal direction around the spindle 4, a guide rail 6 that is mounted inside the upper frame 2, and a vertical axis around the other end of the arm 5. It includes a slider 7 that is rotatably supported by a shaft and reciprocates inside the guide rail 6 while being guided by the guide rail 6, and a catcher 8 that is inside the guide rail 6 and is fixedly arranged at a predetermined position. The guide rail 6 is made of metal, extends in the horizontal direction, has a substantially rectangular cross-sectional view as shown by a two-dot chain line in FIG. 9B, and has a top plate portion 10 and the same. It is provided with a pair of front and rear side plate portions 11 and 12 extending downward from both front and rear side edges of the upper plate portion 10, respectively. Flange portions 13 extend substantially horizontally toward the inside at the lower ends of the plate portions 11 and 12 on both sides. Therefore, most of the lower surface of the guide rail 6 is open.

The door 1 rotates about an axis in the vertical direction. In the fully closed state as shown in FIG. 2A, the door closer body 3, the arm 5, and the guide rail 6 are located on substantially the same line in a plan view. Although the fully closed state is also shown in FIG. 1, the catcher 8 is relatively located on the rotation shaft 1a side of the door 1, and the slider 7 is relatively located on the opposite side of the door 1 rotation shaft 1a. doing. In the following description, the side of the door 1 on the rotating shaft 1a is referred to as the left side, and the side of the door 1 opposite to the rotating shaft 1a is referred to as the right side. As the door 1 opens as shown in FIGS. 2B and 3, the arm 5 rotates horizontally around the main shaft 4 of the door closer body 3, and the slider 7 slides the inner surface of the guide rail 6 to the left. Move and approach the catcher 8. Then, when the door 1 opens to a predetermined opening angle as shown in FIG. 3, the slider 7 reaches the position of the catcher 8, and the catcher 8 holds the slider 7 at that position. As a result, the door 1 is held at a predetermined opening angle. When closing the door 1, conversely, the slider 7 slides the guide rail 6 toward the right side so as to be separated from the rotation shaft 1a of the door 1 and returns to the original position.

Next, the details of the stop device of the door closer will be described. As shown in FIGS. 4 and 5, the stop device includes a slider 7 and a catcher 8. The slider 7 includes a slider main body 20 and a slide plate 21. The slider body 20 has a block shape and is rotatably connected to the arm 5 around an axis in the vertical direction. The slider main body 20 is provided with sliding portions 22 that slide on the inner surfaces of the front and rear side plate portions 11 and 12, respectively, on the front and rear side surfaces. The sliding portion 22 is preferably made of a synthetic resin having excellent sliding characteristics. The slide plate 21 has a flat plate shape, and its right portion (one end side) is attached to the upper surface of the slider main body 20. The upper surface of the slide plate 21 slides on the inner surface of the upper plate portion 10 of the guide rail 6. Therefore, a thin sliding tape 23 is attached to the upper surface of the slide plate 21. The width of the slide plate 21 in the front-rear direction is narrower than the width of the slider body 20, so that the front-rear side edges of the slide plate 21 are separated from the inner surfaces of the front-rear side plate portions 11 and 12 of the guide rail 6. doing. The left portion (the other end side) of the slide plate 21 protrudes from the slider body 20 toward the catcher 8 side by a predetermined length, and a locking hole 24 as an engaging recess penetrating in the vertical direction is formed in the protruding portion. ing. A tapered surface 25 is formed on the lower surface of the left end portion of the slide plate 21 so that the thickness of the slide plate 21 becomes thinner toward the tip.

The catcher 8 includes a mounting plate 30, a housing 31, a cushion 32, an engaging ball 33, a transmission ball 34, a coil spring 35, and an adjusting screw 36. The mounting plate 30 is mounted on the inner surface of the upper plate portion 10 of the guide rail 6, and the housing 31 is mounted on the mounting plate 30. A coil spring 35, a transmission ball 34, and an engagement ball 33 are housed in the housing 31, and a cushion 32 is mounted on the right side surface of the housing 31.

The housing 31 communicates with a first passage 41 extending along the longitudinal direction of the guide rail 6 and a right end (one end) of the first passage 41, and is vertically perpendicular to the longitudinal direction of the guide rail 6. A second passage 42 extending along the direction is formed. The left end (other end) of the first passage 41 is open to the side surface of the housing 31, and the adjusting screw 36 is screwed into the first passage 41 from the opening. The adjusting screw 36 can be operated through the opening on the lower surface of the guide rail 6. Further, a coil spring 35 is inserted into the first passage 41. The center line of the coil spring 35 is along the longitudinal direction of the guide rail 6. The coil spring 35 is located on the right side of the adjusting screw 36 and is pushed by the adjusting screw 36 toward the right side of the first passage 41. The transmission ball 34 is housed near the right end of the first passage 41. The transmission ball 34 is located on the right side of the coil spring 35. The transmission ball 34 can roll in the first passage 41. Therefore, the transmission ball 34 can move horizontally along the longitudinal direction of the guide rail 6. The transmission ball 34 is constantly pushed toward the right side by the coil spring 35, and is in contact with the inner surface of the housing 31 located at the right end of the first passage 41. The inner surface of the housing 31 with which the transmission ball 34 abuts is referred to as a regulation surface 43. When the transmission ball 34 comes into contact with the regulation surface 43 of the housing 31, the transmission ball 34 cannot move further to the right in the first passage 41. The regulation surface 43 is an inclined surface that is inclined at a predetermined angle in the left-right direction with respect to the vertical direction, and the upper end of the regulation surface 43 is located on the right side with respect to the lower end. Further, a protrusion 44 is projected toward the left side at a position on the inner surface of the housing 31 immediately above the regulation surface 43, and the protrusion 44 prevents the transmission ball 34 from moving to the second passage 42 side. Will be done. Further, the protrusion 44 also prevents the engaging ball 33 from moving toward the first passage 41 side.

The second passage 42 extends upward from the right end of the first passage 41 and opens on the upper surface of the housing 31. The engaging ball 33 is inserted into the second passage 42 and can roll in the second passage 42. Therefore, the engaging ball 33 can move in the vertical direction. The engaging ball 33 is pushed upward by the transmission ball 34, and the engaging ball 33 is always in a state of protruding upward by a predetermined amount from the opening of the second passage 42. The upper surface of the housing 31 is separated downward from the inner surface of the upper plate portion 10 of the guide rail 6 by a predetermined distance. Specifically, the upper surface of the housing 31 is separated downward from the inner surface of the upper plate portion 10 of the guide rail 6 by the thickness of the mounting plate 30. In FIG. 4, the engaging ball 33 appears to be in contact with the inner surface of the upper plate portion 10 of the guide rail 6, but in reality, the engaging ball 33 is attached to the inner surface of the upper plate portion 10 of the guide rail 6. They face each other through a small gap. However, the engaging ball 33 may be in contact with the inner surface of the upper plate portion 10 of the guide rail 6.

As shown in FIG. 4, in the stop release state in which the slider 7 is separated from the catcher 8, the transmission ball 34 is in contact with the regulation surface 43 of the housing 31, and is not located directly under the engaging ball 33. It is in a state of being displaced to the left side with respect to the combined ball 33. Therefore, when viewed from the front as shown in FIG. 4, the straight line connecting the center of the engaging ball 33 and the center of the transmission ball 34 is inclined by a predetermined angle with respect to the vertical direction. As will be described later, in the present embodiment, the engaging direction between the engaging ball 33 and the locking hole 24 is the vertical direction. The angle of the straight line connecting the center of the engaging ball 33 and the center of the transmission ball 34 with respect to the vertical direction is the inter-ball angle θ. The angle between the balls θ may be various angles, but is preferably 45 degrees or less, and is, for example, 10 to 30 degrees. The engaging ball 33 and the transmission ball 34 are displaced from each other in the longitudinal direction of the guide rail 6, but are positioned in the front-rear direction, which is the horizontal direction and orthogonal to the longitudinal direction of the guide rail 6. It is not out of alignment. In this way, the transmission ball 34 pushes the engaging ball 33 diagonally upward to the right at an angle from the lower side.

Next, the state of the transition period, which is the intermediate state between the stop state and the stop state and the stop release state, will be described. The transitional state is shown in FIG. 6, and the stop state is shown in FIGS. 7 and 8. For example, when the slider 7 moves to the left side with the opening operation of the door 1 from the stop release state shown in FIGS. 4 and 5, the tip of the slide plate 21 eventually slides onto the upper side of the engaging ball 33. Become. As shown in FIG. 6, when the slide plate 21 enters the gap between the engaging ball 33 and the upper plate portion 10 of the guide rail 6, the engaging ball 33 is pushed downward by the slide plate 21 and the second passage 42. Immerse yourself in it. The engaging ball 33 does not normally come into contact with the protrusion 44, but if the protrusion 44 is formed, even if the engaging ball 33 tries to move downward more than necessary, it will be engaged. When the combined ball 33 comes into contact with the protrusion 44, it is possible to prevent the engaging ball 33 from moving excessively downward. On the other hand, the transmission ball 34 is pushed by the engaging ball 33 and moves toward the left side of the first passage 41 while compressing the coil spring 35. The ball-to-ball angle θ in such a transitional state is larger than the ball-to-ball angle θ in the stop release state and the stop state.

Then, when the slide plate 21 further enters the left side from the transitional state, the stop state as shown in FIGS. 7 and 8 is obtained. In the stopped state, the locking hole 24 of the slide plate 21 reaches above the engaging ball 33, and the engaging ball 33 engages with the locking hole 24 of the slide plate 21 from below. Further, the slider body 20 comes into contact with the cushion 32 of the catcher 8. Therefore, the collision noise and vibration at the time of stop are alleviated.

In the stopped state, the engaging ball 33 is pushed from below by the transmission ball 34. The transmission ball 34 is in contact with the regulation surface 43 of the housing 31, and the angle θ between the balls between the engaging ball 33 and the transmission ball 34 is constant. The coil spring 35 pushes the transmission ball 34 toward the right side, and the transmission ball 34 transmits the spring force of the coil spring 35 to the engaging ball 33 at different angles.

Since the coil spring 35 is arranged along the longitudinal direction of the guide rail 6 instead of the vertical direction in this way, the degree of freedom in designing the coil spring 35 is high, and a sufficient amount of expansion and contraction of the coil spring 35 can be easily secured. A large spring force can be easily obtained. Then, the spring force of the coil spring 35 acts on the engaging ball 33 by changing the angle via the transmission ball 34, so that the spring force is amplified and transmitted to the engaging ball 33. Therefore, the engaging ball 33 and the locking hole 24 are engaged with each other with a strong force, and the holding force (stop force) for stopping the door 1 is also increased. Therefore, the door 1 can be reliably stopped at a predetermined position.

In particular, since the ball-to-ball angle θ is as small as less than 45 degrees, the degree of amplification of the spring force via the transmission ball 34 is large, and therefore a large holding force can be obtained. Moreover, since the transmission ball 34 is in contact with the regulation surface 43 of the housing 31 in the stopped state, a constant inter-ball angle θ is maintained in the stopped state. Therefore, the variation of the spring force acting on the engaging ball 33, that is, the urging force on the engaging side is suppressed, and the holding force of the door 1 as designed can be surely obtained at the time of stopping. By rotating the adjusting screw 36, the coil spring 35 can be expanded and contracted to adjust the spring force, and the holding force in the stopped state can be adjusted.

Stop devices in other embodiments are shown in FIGS. 9 and 10. The stop device in this embodiment includes an angle changing mechanism for changing the angle between balls θ. The angle changing mechanism is configured to change the angle between balls θ by changing the position of the transmission ball 34 along the longitudinal direction of the guide rail 6. Specifically, the angle adjusting screw 50 is screwed into the right end of the housing 31. A cushion 32 is attached to the right side surface of the housing 31, and a notch 51 is formed in the lower portion of the cushion 32, and an angle adjusting screw 50 is screwed into the housing 31 from the right side through the notch 51. It has been entered. That is, the angle adjusting screw 50 is arranged about the transmission ball 34 on the opposite side of the coil spring 35. The angle adjusting screw 50 is a set screw having no head, and its tip reaches the first passage 41. The tip of the angle adjusting screw 50 can project horizontally into the first passage 41 from the regulation surface 43 of the housing 31. By adjusting the screwing amount of the angle adjusting screw 50 into the housing 31, the amount of the tip of the angle adjusting screw 50 protruding from the regulation surface 43 of the housing 31 into the first passage 41 can be adjusted. Then, the tip of the angle adjusting screw 50 pushes the transmission ball 34 toward the left side.

FIG. 10 shows the stop state. By adjusting the screwing amount of the angle adjusting screw 50, the angle between balls θ at the time of stopping can be changed. FIG. 10A shows a state in which the screwing amount of the angle adjusting screw 50 is small, the transmission ball 34 is in contact with the regulation surface 43, and the angle θ between the balls is in the minimum state within the adjustable range. .. When the angle θ between the balls becomes smaller, the degree of amplification of the spring force by the transmission ball 34 becomes larger, the force of the transmission ball 34 pushing the engaging ball 33 upward becomes larger, and the holding force of the door 1 becomes larger. On the contrary, when the angle between balls θ becomes large, the degree of amplification of the spring force by the transmission ball 34 becomes small, the force of the transmission ball 34 pushing the engaging ball 33 upward is small, and the holding force of the door 1 becomes small.

When the angle adjusting screw 50 is screwed in from the state of FIG. 10 (a), the state of FIG. 10 (b) is obtained. The state of FIG. 10B is a state in which the screwing amount of the angle adjusting screw 50 is large, and the transmission ball 34 is pushed to the left by the angle adjusting screw 50 and is separated from the regulation surface 43. Therefore, the angle θ between the balls is larger in the state of FIG. 10B than in the state of FIG. 10A, and the holding force of the door 1 is lowered. When the angle adjusting screw 50 pushes the transmission ball 34 to the left, the coil spring 35 is compressed and the spring force itself becomes large, but the decrease due to the increase in the inter-ball angle θ is larger than the increase. Is larger. Therefore, when the angle adjusting screw 50 is screwed in and the transmission ball 34 is moved to the left side to increase the angle between balls θ, the engaging force between the engaging ball 33 and the locking hole 24 becomes small, and the holding force of the door 1 becomes small. can do. When the angle adjusting screw 50 is screwed in, the transmission ball 34 is pushed to the left side and moves, and as a result, the engaging ball 33 is slightly lowered, and the amount of protrusion of the engaging ball 33 from the housing 31 is increased. It becomes slightly smaller, and the amount of engagement with the locking hole 24 also becomes slightly smaller.

In addition, the stop device can be changed in various ways. An example is shown in FIGS. 11 to 14. 11 and 12 show the stop release state, and FIGS. 13 and 14 show the stop state. In the above embodiment, the plate surface of the slide plate 21 faces up and down and is parallel to the upper plate portion 10 of the guide rail 6, but in this embodiment, the plate surface of the slide plate 21 faces front and back. The slide plate 21 is parallel to the side plate portions 11 and 12 of the guide rail 6. Therefore, the locking hole 24 of the slide plate 21 is formed along the front-rear direction, and the engaging direction between the locking hole 24 and the engaging ball 33 is not the vertical direction but the front-rear direction (horizontal direction). Further, the slide plate 21 is bent in an L shape, and has a mounting plate portion 60 attached to the left side surface of the slider main body 20 and a hook extending from the rear end portion of the mounting plate portion 60 at a right angle to the left side. A plywood portion 61 is provided, and a locking hole 24 is formed in the engaging plate portion 61. The engaging plate portion 61 is located near the side plate portion 12 on the rear side of the guide rail 6 in parallel with the side plate portion 12. The engaging plate portion 61 is separated from the side plate portion 12 on the rear side of the guide rail 6, and therefore the slide plate 21 does not slide with the guide rail 6.

The catcher 8 is provided with a holding plate 62 on the rear side of the housing 31. The holding plate 62 is attached to the rear side surface of the housing 31. The engaging ball 33 is pushed toward the rear side by the transmission ball 34, but the movement of the transmission ball 34 to the rear side is blocked by the pressing plate 62. As shown in FIG. 14, the engaging plate portion 61 of the slide plate 21 can enter between the pressing plate 62 and the engaging ball 33 from the insertion port between the right end portion of the pressing plate 62 and the housing 31. As shown in FIGS. 13 and 14, the mounting plate portion 60 of the slide plate 21 comes into contact with the cushion 32 of the catcher 8 at the time of stopping.

In the above embodiment, the locking hole 24 that penetrates as the engaging recess is formed, but it may be a non-penetrating hole, that is, a recess. Further, the engaging recess is provided on the slider 7 side and the engaging ball 33 is provided on the catcher 8 side, but conversely, the engaging recess is provided on the catcher 8 side and the engaging ball 33 is provided on the slider 7 side. May be provided.

In the above embodiment, the door closer body 3 is arranged inside the door 1, but it can also be applied to an external type door closer in which the door closer body 3 is installed on the outer surface of the door 1.

1 Door 1a Rotating shaft 2 Upper frame 3 Door closer body 4 Main shaft 5 Arm 6 Guide rail 7 Slider 8 Catcher 10 Upper plate part 11 Front side plate part 12 Rear side plate part 13 Flange part 20 Slider body 21 Slide plate 22 Sliding Part 23 Sliding tape 24 Locking hole (engagement recess)
25 Tapered surface 30 Mounting plate 31 Housing 32 Cushion 33 Engaging ball 34 Transmission ball 35 Coil spring 36 Adjusting screw 41 First passage 42 Second passage 43 Restricting surface 44 Protrusion 50 Angle adjusting screw 51 Notch 60 Mounting plate 61 Engaging plate 62 Holding plate θ Angle between balls

Claims (3)

A door closer stop device provided with a slider that moves guided by a guide rail as the door opens and closes, and a catcher that is provided at a predetermined position on the guide rail and holds the slider.
One of the slider and the catcher has an engaging recess recessed in a direction orthogonal to the longitudinal direction of the guide rail.
The other of the slider and the catcher is arranged between the engaging ball that can engage in the engaging recess, the coil spring for urging the engaging ball to the engaging side, and the coil spring and the engaging ball. It is equipped with a transmission ball that transmits the spring force of the coil spring to the engaging ball.
The coil spring is arranged so that its center line is along the longitudinal direction of the guide rail, and the transmission ball is a door closer stop device characterized in that the spring force of the coil spring is transmitted to the engaging ball at different angles. The other of the slider and the catcher has a housing containing an engaging ball, a transmission ball and a coil spring, and a regulation for stopping the movement of the transmission ball to the opposite side of the coil spring at a predetermined position on the inner surface of the housing. The door closer stop device according to claim 1, wherein the transmission ball comes into contact with the regulation surface in a state where the surface is provided and the engaging ball is engaged with the engaging recess. An angle changing mechanism for changing the angle of the straight line connecting the center of the engaging ball and the center of the transmitting ball with respect to the engaging direction between the engaging ball and the engaging recess when the transmission ball is in contact with the regulation surface. The door closer stop device according to claim 2.

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