JP3987658B2 - Brake device for hanging sliding doors - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a brake device that is disposed above a moving path end of a hanging sliding door and automatically brakes the sliding door when the sliding door reaches the end of the moving path.
[0002]
[Prior art and its problems]
As a brake device of this type, there is known a device in which a pair of left and right elastic braking pieces are provided in a guide rail to sandwich a pin projecting upward from a sliding door body, and such a conventional brake device is provided. In this case, the braking distance to the sliding door is short and the sliding door cannot be braked smoothly, and the braking force cannot be finely adjusted according to the user's preference. Even if the braking force is weakened due to plastic deformation, adjustment to return the braking force to the original value has not been possible. In addition, the biggest drawback is that when the sliding door is moved in the reverse direction from the braking stop position (for example, when it is opened), a load that is substantially the same as the load (braking force) acting on the sliding door when the sliding door is moved in the forward direction is applied to the sliding door. Because of this, the reverse movement of the sliding door cannot be performed lightly.
[0003]
[Means for Solving the Problems]
An object of the present invention is to provide a suspension device for a sliding door that can solve the conventional problems as described above, and the means thereof is shown with reference numerals of embodiments described later. A brake device disposed above the end of the moving path of the hanging sliding door 1, comprising a base 8 and a brake body 9 supported on the lower side of the base 8 so as to be movable within a certain range in the sliding door moving direction. A spring 10 for urging the braking body 9 toward the end of the sliding door moving path, a stopper 11 for restricting the forward movement of the braking body 9 by the urging force of the spring 10, and the position of the stopper 11 for moving the sliding door A sliding contact with the lower braking surface 9e of the braking body 9, the adjusting means 12 for adjusting the longitudinal direction, the guide means 13 for lowering the braking body 9 in parallel with the forward movement and raising in parallel with the backward movement. You It has a configuration including a braked portion 14 provided on the sliding door 1 side as.
[0004]
The suspension door 1 is generally movably suspended on a guide rail 3 via a suspension roller unit 2, and the guide rail 3 is an entire suspension roller unit 2. Is provided with horizontal rail portions 5a and 5b for supporting the horizontal shaft rollers 4 on both the left and right sides of the roller unit 2 on the inner side from the lower ends of both side walls. A pair of left and right engaging pieces 7a continuous in the rail length direction are engaged with the upper wall portion 6 to be engaged with the engaged portions 15a and 15b formed on both sides of the base 8 so as to be movable in the rail length direction. 7b, the base 8 is in the vicinity of both ends of the base 8, and two front and rear plate nuts 18 positioned above the pair of left and right engaging pieces 7a, 7b on the guide rail 3 side, and the base 8 Penetrate upwards And by a fastening screw 20 of the two front and rear screwed to the plate nut 18 may be fixed to the guide rail 3.
[0005]
Further, the guide means 13 is formed on the upper side of the brake body 9 so as to abut on the saw blade cam surface 21 in the sliding door moving direction formed on the lower side of the base 8 and the saw blade cam surface 21. The saw blade-shaped cam driven surface 22 causes the braking body 9 to descend in parallel with the forward movement, so that the brake body 9 is moved forward and backward in the sliding door movement direction and the base 8 is moved forward and backward in the sliding door movement direction. The braking body 9 can be configured to be raised in parallel with the backward movement by the cam groove 24 and the pin 23 which are provided in the upper and lower sides and engage with each other.
[0006]
The adjusting means 12 includes a long hole 26 provided in the base 8 in the sliding door moving direction, and a fastening screw 27 penetrating the long hole 26 upward. It can be set as the structure fixed so that position adjustment is possible.
[0007]
Moreover, the screw type adjustment means 40 can also be used. The screw type adjusting means 40 includes a screw shaft 41 supported on the base 8 in parallel with the sliding door moving direction, and a female screw body 42 screwed into the screw shaft 41. The screw shaft 41 and the female screw One of the bodies 42 is supported on the base 8 so as to be able to rotate only and can be rotated forward and backward, and the other of the screw shaft 41 and the female screw body 42 can move in the sliding door moving direction. It can be connected to the stopper 11.
[0008]
Furthermore, the cam type adjustment means 50 can also be used. The cam type adjusting means 50 includes a rotary operation tool 51 supported on the base 8 so as to be capable of rotating only, an eccentric cam 52 provided on the rotary operation tool 51, and the stopper 11 movable in the sliding door moving direction. It comprises a cam groove 53 that is provided continuously and engages with the eccentric cam 52, and the stopper 11 can be configured to move in the sliding door moving direction as the eccentric cam 52 rotates eccentrically.
[0009]
The braked portion 14 on the sliding door 1 side is a fitting protrusion that can be fitted into the fitted recesses 30 a and 30 b provided at positions near both ends of the sliding roller moving unit 2 of the sliding door 1 in the sliding door moving direction. It can be comprised from the synthetic resin strip | belt-shaped body 32 provided with the part 31a, 31b at both ends.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes a hanging sliding door, which is provided with hanging roller units 2 at two positions before and after its upper end. Reference numeral 3 denotes a guide rail for suspending the sliding door 1 so as to be movable, and the brake device of the present invention is provided at the end of the sliding door moving path (the end of the sliding door in the closing direction, the end in the opening direction or both ends). Is provided.
[0011]
As shown in FIG. 3, the guide rail 3 has a gate-shaped cross section, and is a gate-shaped cross section in which the entire suspension roller unit 2 is fitted. A pair of left and right engaging pieces 7a and 7b that are continuous in the rail length direction are provided on the upper wall portion 6 that connects between the upper ends of both side walls. I have.
[0012]
Hereinafter, when the brake device of the present invention is described as being provided at the end portion on the sliding door closing direction side, the brake device is fixed to the end portion of the guide rail 3 as shown in FIGS. 1 and 2. A base 8 that is supported, a brake body 9 that is supported below the base 8 so as to be movable within a certain range of the sliding door movement direction, a spring 10 that urges the braking body 9 in the sliding door closing direction, A stopper 11 that restricts the forward movement of the brake body 9 in the sliding door closing direction, an adjusting means 12 that adjusts the position of the stopper 11 in the sliding door movement direction, and the movement of the braking body 9 in the sliding door closing direction. The guide means 13 for lowering in parallel and moving in parallel with the movement in the sliding door opening direction, and a braked portion 14 provided on the sliding door 1 side so as to be in sliding contact with the lower side surface of the braking body 9 are provided. .
[0013]
The base 8 has a belt-like shape as shown in FIGS. 10 and 11, and as shown in FIG. 3, a pair of left and right engaging pieces 7a and 7b of the guide rail 3 are provided at upper corners on both left and right sides. Engaged portions 15a and 15b that fit inside are projected, and the engaged portions 15a and 15b and the engagement pieces 7a and 7b are engaged with the guide rail 3 so as to be movable in the length direction. is doing. Then, as shown in FIGS. 10 and 11, recessed portions 16 that are cut off including the engaged portions 15a and 15b are formed at positions near both ends of the base 8, and on both the left and right sides of the recessed portions 16, As shown in FIG. 4, a pair of left and right projecting portions 17 a and 17 b located below the pair of left and right engaging pieces 7 a and 7 b of the guide rail 3 are projected and are loosely fitted in the respective recesses 16. The nut 18 is fastened with fastening screws 20 penetrating upwardly through a through hole 19 provided in the base 8 at the center of the recess 16, whereby a pair of left and right sides of the plate nut 18 and a pair of left and right on the base 8 side. A pair of left and right engaging pieces 7a and 7b on the guide rail 3 side is sandwiched between the overhang portions 17a and 17b, and the base 8 is fixed at a predetermined position of the end of the guide rail 3.
[0014]
The brake body 9 is partially loosely fitted in a recessed groove portion 8a formed on the lower side of the base 8 so as to be movable in the sliding door moving direction, and the guide means 13 includes the base as shown in FIGS. 8, a saw blade cam surface 21 in the sliding door moving direction formed on the bottom surface of the concave groove portion 8a, and a saw formed on the brake body 9 so as to abut on the saw blade cam surface 21. The blade-like cam driven surface 22, two pins 23 penetrated in the left and right horizontal directions at two locations near the front and rear ends of the sliding body 9 in the sliding door moving direction, and both ends of each pin 23 are loosely fitted (see FIG. 5). ) Formed on the both side walls 8b and 8c of the base 8 as described above from a pair of left and right cam grooves 24a and 24b inclined in parallel with the inclined surface of the saw blade cam surface 21 (saw blade cam driven surface 22). It is configured.
[0015]
As shown in FIGS. 6, 10, and 11, the spring 10 includes one end of a recessed portion 8 d that is formed so as to be further recessed in the middle of the recessed groove portion 8 a of the base 8 and is long in the sliding door moving direction. It is interposed between the protrusion 9a projecting from the brake body 9 so as to loosely fit into the recessed portion 8d, and urges the brake body 9 in the sliding door closing direction.
[0016]
As shown in FIGS. 7, 10, and 11, the stopper 11 is provided with a pair of left and right protrusions on one lower side of the movable member 25, and a pair of left and right concave grooves 9 b formed on one upper side of the braking body 9. 9c and abuts against the end 9d of the groove 9b, 9c on the sliding door opening direction side, and the movable member 25 communicates with one end of the groove 8a of the base 8 and The groove 8e opened on the upper side of the base 8 is fitted so as to be movable in the sliding door moving direction.
[0017]
As shown in FIGS. 8, 10, and 11, the adjusting means 12 has a long hole 26 provided in a portion corresponding to the bottom of the groove 8 e of the base 8 and extending in the sliding door moving direction, and passes through the long hole 26 upward. And a screw hole 28 provided in the movable member 25 so that the fastening screw 27 is screwed. The bottom surface 8f of the groove 8e and the lower side surface 25a of the movable member 25 are As a result of the fastening of the fastening screws 27, the concave and convex portions are engaged so as to engage with each other and prevent the movable member 25 from slipping.
[0018]
As shown in FIGS. 1, 2, and 9, the braked portion 14 on the sliding door 1 side is provided at positions near both ends of the sliding door moving direction of the trolley body 29 that supports the horizontal shaft roller 4 of the hanging trolley unit 2. It is comprised from the synthetic resin strip | belt-shaped body 32 provided with the protrusions 31a and 31b for fitting which can be fitted to the to-be-fitted recessed parts 30a and 30b. In this embodiment, a left and right concave portion 33 is also formed on the upper surface of the central portion of the trolley body 29 in the sliding door moving direction, and a protrusion 34 that fits into the concave portion 33 protrudes from the lower surface of the belt-like body 32. Has been. The recessed portions 30a and 30b to be fitted and the recessed portion 33 penetrate the trolley body 29 in the left-right width direction, and the protrusions 31a, 31b and 34 on the belt-like body 32 side are inserted from the side of the trolley body 29. It is configured to be able to. Thus, the trolley body 29 is arranged around the suspension shaft 35 via a suspension shaft support hole 36 provided at the center of the trolley body 29 (the center of the recess 33) on the suspension shaft 35 protruding from the upper end of the sliding door 1. And the sliding door 1 is suspended.
[0019]
As shown in FIG. 1, the braking body 9 of the brake device attached to the end of the guide rail 3 is urged in the sliding door closing direction by the urging force of the spring 10, so It moves in the sliding door closing direction to a position where the stopper 11 comes into contact with the end 9d on the sliding door opening direction side of the concave groove portions 9b, 9c. The braking body 9 moving in the sliding door closing direction is moved in the sliding door closing direction by the contact sliding movement of the saw blade cam driven surface 22 with respect to the saw blade cam surface 21 of the guide means 13. Since the parallel lowering is performed, the height of the braking surface 9e which is the lower side surface of the braking body 9 is determined by the position when the movement of the braking body 9 in the sliding door closing direction is stopped by the stopper 11 as described above. Become.
[0020]
Accordingly, the sliding door 1 suspended from the guide rail 3 via the suspension roller unit 2 moves in the closing direction, and the braked portion 14 (the belt-like body 32 on the trolley body 29) is braked by the brake device. When entering the lower side of the body 9, due to the frictional force between the lower braking surface 9e of the braking body 9 and the braked portion 14 of the suspension roller unit 2 (the belt-like body 32 on the trolley body 29), The position of the sliding body 9 in the sliding door moving direction is adjusted in advance so that the sliding door 1 is appropriately braked.
[0021]
That is, when the braking force against the sliding door 1 is weak and the sliding door 1 collides with a door such as an opening frame that is in the closed limit due to inertia, the fastening screw 27 of the adjusting means 12 is loosened. In such a state, the movable member 25 is moved toward the sliding door closing direction by using the fastening screw 27 or the like, and the amount of movement of the braking body 9 in the sliding door closing direction by the urging force of the spring 10 is increased. Therefore, the braking body 9 is lowered in parallel by the sliding movement of the saw blade cam surface 21 and the saw blade cam driven surface 22 of the guide means 13, and the height of the lower braking surface 9e of the braking body 9 is increased. The lower brake surface 9e of the brake body 9 and the braked portion 14 (trolley) when the braked portion 14 of the sliding door 1 (the belt-like body 32 on the trolley body 29) enters the lower side of the brake body 9. What is necessary is just to increase the frictional force between the strips 32) on the main body 29. After adjusting the position of the movable member 25 (stopper 11), the fastening screw 27 is tightened to fix the position of the movable member 25 (stopper 11).
[0022]
On the other hand, when the braking force against the sliding door 1 is strong and it is difficult to move the sliding door 1 to the closing limit, the fastening screw 27 is used with the fastening screw 27 of the adjusting means 12 loosened. Thus, the movable member 25 is moved in the sliding door opening direction side, and the braking body 9 is moved in the sliding door opening direction against the urging force of the spring 10 via the stopper 11. As a result, the braking body 9 moves up in parallel due to the relative movement of the two pins 23 of the guide means 13 and the pair of left and right cam grooves 24a, 24b, and the lower braking surface 9e of the braking body 9 becomes high. When the braked portion 14 of the sliding door 1 (the belt-like body 32 on the trolley body 29) enters the lower side of the braking body 9, the lower braking surface 9e of the braking body 9 and the braked portion 14 (the trolley body) Since the frictional force between the belt 29 and the belt-like body 32 on 29 is reduced, the sliding door 1 can be moved to the closed limit position while applying appropriate braking. After adjusting the position of the movable member 25 (stopper 11), the fastening screw 27 is tightened to fix the position of the movable member 25 (stopper 11).
[0023]
As shown in FIG. 1, when the sliding door 1 in the closed movement limit position is opened, the braked portion 14 of the sliding door 1 (the belt-like body 32 on the trolley body 29) and the lower braking of the braking body 9 on the upper side thereof. The braking body 9 moves in the opening direction together with the sliding door 1 by the frictional force with the surface 9e. The movement of the braking body 9 in the opening direction is performed against the urging force of the spring 10, but the relative movement between the two pins 23 of the guide means 13 and the pair of left and right cam grooves 24a and 24b by the movement. As a result, the braking body 9 rises in parallel until the lower braking surface 9e thereof is at a height immediately before the braked portion 14 of the sliding door 1 is separated from the braked portion 14 (the belt-like body 32 on the trolley body 29). Since the sliding door 1 moves in the opening direction while moving, the resistance related to the sliding door 1 is very small and can be opened lightly and smoothly.
[0024]
If the braked portion 14 of the sliding door 1 (the belt-like body 32 on the trolley main body 29) is detached from the lower braking surface 9e of the braking body 9, the braking body 9 is stopped by the stopper 11 by the urging force of the spring 10. The sliding movement of the guide means 13 to the saw blade cam follower surface 22 with respect to the saw blade cam follower surface 22 is automatically lowered in parallel to the initial height.
[0025]
The adjusting means 12 for adjusting the position of the stopper 11, that is, adjusting the initial height of the lower braking surface 9 e of the braking body 9 is not limited to that of the above embodiment. For example, a screw type or a cam type can be considered. FIGS. 12-14 has shown an example of the screw type adjustment means 40. FIG. The screw-type adjusting means 40 includes a screw shaft 41, a female screw body 42 that also serves as a right-angle transmission gear such as a bevel gear, and a rotation operation means 43. The screw shaft 41 is parallel to the sliding door moving direction. The corner head 41a at one end is fitted and locked to the movable member 25 provided with the stopper 11, and the intermediate portion penetrates the partition wall portion 44 dividing the inside of the concave groove portion 8e of the base 8, and the free end portion is It is supported on the base 8 so as to be able to move back and forth in the sliding door moving direction by loosely fitting in a bearing hole 45 provided in the base 8. The female screw body 42 is positioned on the opposite side of the bearing portion 44 from the side where the movable member 25 is located, and is screwed onto the screw shaft 41. The rotation operating means 43 is for right-angle transmission such as a bevel gear supported on the outer peripheral gear portion of the female screw body 42 and a bevel gear that is pivotally supported by a vertical support shaft at the bottom of the concave groove portion 8e while being engaged with the gear portion. The gear 46 includes a gear 46 and a rotation operation tool 47 that is concentrically linked to the gear 46 and that rotates the gear 46 forward and backward from the lower side of the base 8. The female screw body 42 that also serves as a right-angle transmission gear is sandwiched between the partition wall portion 44 and the gear 46 and can rotate only.
[0026]
According to the screw-type adjusting means 40 having the above-described configuration, when the rotation operation tool 47 is rotated forward and backward by screwing or the like, the rotation is transmitted from the gear 46 to the female screw body 42, and the female screw body 42 rotates forward and backward. Thus, the screw shaft 41 is moved back and forth in the sliding door moving direction. This back-and-forth movement of the screw shaft 41 is directly transmitted to the stopper 11 through the movable member 25, and as described in the previous embodiment, the stopper for adjusting the initial height of the lower braking surface 9e of the braking body 9 is used. 11 front-rear position adjustment is performed.
[0027]
For example, by fixing the female screw body 42 to the screw shaft 41, the screw shaft 41 is supported on the base 8 side so as to be capable of rotating only, and the screw shaft 41 is moved in the sliding door moving direction provided on the movable member 25. By screwing into parallel screw holes, the screw shaft 41 can be rotated forward and backward to push and pull the movable member 25 (stopper 11) in the sliding door moving direction.
[0028]
15 to 17 show an example of the cam type adjusting means 50. The cam type adjusting means 50 is provided on the rotary operation tool 51, which is supported on the bottom of the concave groove portion 8 e of the base 8 so as to be capable of rotating only and whose operation part is exposed to the lower side of the base 8. The eccentric cam 52 and a left and right cam groove 53 which is provided on the movable member 25 (stopper 11) movable in the front-rear direction of the sliding door and engages with the eccentric cam 52. According to this cam type adjusting means 50, the movable member 25 is moved in the sliding door moving direction in accordance with the eccentric rotation of the eccentric cam 52 by rotating the rotating operation tool 51 forward and backward by screwing or the like, and braking is performed. The front / rear position of the stopper 11 for adjusting the initial height of the lower braking surface 9e of the body 9 can be adjusted.
[0029]
【The invention's effect】
According to the suspension device for a sliding door of the present invention that can be implemented as described above, when the braked portion of the hanging door enters the lower side of the braking body disposed at the end of the movement path, It is possible to brake the sliding door by continuously pressing the braked part downward on the side braking surface, but the braking force on the sliding door at this time is adjusted by adjusting means to move the stopper position back and forth in the sliding door moving direction. By moving and changing the initial height of the lower braking surface of the braking body, it can be adjusted freely. Moreover, when moving the sliding door in the reverse direction from the braking stop position, the braking body is moved backward against the spring by the frictional force between the lower braking surface of the braking body and the braked portion on the sliding door side, Since the guide means moves the retreating braking body in parallel, the frictional resistance between the lower braking surface of the braking body and the braked part on the sliding door side is extremely reduced.
[0030]
In other words, the length of the brake body is increased to sufficiently increase the braking distance to the sliding door, so that the sliding door can be smoothly braked and the braking force is finely adjusted according to the user's preference. Furthermore, even if the braking force is weakened due to wear of the braking surface or deterioration of the material, the braking force can be restored by adjustment by the adjusting means. Moreover, the sliding door can be lightly moved in the reverse direction from the braking stop position while taking a sufficient braking distance as described above.
[0031]
In addition, according to the structure of Claim 2, the base | substrate provided with the elongate braking body can be easily and easily attached in the guide rail which hangs a suspension door through a roller unit. Further, according to the configuration of the third aspect of the present invention, the long brake member is supported in a suspended manner by the cam groove and the pin of the guide means at two positions in the sliding door movement direction of the long brake member. When the sliding door side braked portion enters and moves downward, the sliding door side braked portion can be reliably pressed downward with a constant pressing force over the entire length of the braking body, and the braking effect can be improved. I can expect.
[0032]
Further, according to the configuration of claim 4, the adjusting means for changing the initial height of the lower braking surface of the brake body by moving the position of the stopper back and forth in the sliding door moving direction becomes a very simple configuration, It can be implemented at low cost. Of course, by employing the screw-type adjusting means according to claim 5 and the cam-type adjusting means according to claim 6, it is possible to make fine adjustment possible with a simple operation.
[0033]
Moreover, according to the structure of Claim 7, the to-be-braking part by the side of a sliding door is comprised from the member of a material suitable as a brake shoe, and this can be easily mounted | worn on a trolley main body, wear etc. However, it is also possible to easily replace it as necessary.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view of a state in which a sliding door is braked to a closed limit position.
FIG. 2 is a longitudinal side view showing a state when the sliding door is opened from the closed limit position.
FIG. 3 is a longitudinal rear view in a state where the sliding door is in front of the brake device.
FIG. 4 is a vertical cross-sectional view of a base rail attached to a guide rail.
FIG. 5 is a longitudinal cross-sectional view at a support position of a braking body with respect to a base.
FIG. 6 is a longitudinal sectional view at a spring interior position.
FIG. 7 is a longitudinal sectional view at a stopper position.
FIG. 8 is a longitudinal sectional view at an adjustment means position.
FIG. 9 is a side view showing a trolley body of a suspension roller unit and a belt-shaped body constituting a braked portion.
FIG. 10 is an exploded partial longitudinal side view of the brake device.
FIG. 11 is an exploded partial cross-sectional bottom view, a plan view, and a side view of the brake device.
FIG. 12 is a plan view of the main part of the embodiment using the screw type adjusting means.
FIG. 13 is a longitudinal side view of the main part.
FIG. 14 is a bottom view of the main part.
FIG. 15 is a plan view of a main part of an embodiment using a cam type adjusting means.
FIG. 16 is a vertical side view of the main part.
FIG. 17 is a bottom view of the main part.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hanging sliding door 2 Hanging roller unit 3 Guide rail 4 Horizontal axis | shaft roller 5a, 5b Horizontal rail part 6 of a guide rail 6 Upper part 7a, 7b of guide rail Engagement piece 8 Base 9 Brake body 10 Spring 11 Stopper 12 adjusting means 13 guide means 14 braked portions 15a and 15b of the roller unit for suspension 18 engaged portions 18 of the base plate nut 20 fastening screw 21 saw blade cam surface 22 saw blade cam driven surface 23 pins 24a and 24b Cam groove 25 Movable member 26 Long hole 27 Tightening screw 29 Trolley body 30a, 30b Fitted recess 31a, 31b Fitting protrusion 32 Synthetic resin strip (braking part)
40 Screw-type adjusting means 41 Screw shaft 42 Female screw body 43 also serving as a right-angle transmission gear Rotating operation means 50 Cam-type adjusting means 51 Rotating operation tool 52 Eccentric cam 53 Cam groove

Claims (7)

A brake device disposed above an end of a moving path of a hanging sliding door, the base, a braking body supported below the base so as to be movable within a predetermined range of the sliding door moving direction, and the braking body A spring that urges the sliding door moving path toward the end side, a stopper that restricts forward movement of the braking body by the urging force of the spring, an adjustment means that adjusts the position of the stopper in the sliding door moving direction, and Guide means for lowering the brake body in parallel with forward movement and raising it in parallel with backward movement, and a braked part provided on the sliding door side so as to be in sliding contact with the lower brake surface of the brake body Brake device for hanging sliding doors. The suspension sliding door is movably suspended on a guide rail via a suspension roller unit, and the guide rail has a cross-sectional gate shape in which the entire suspension roller unit of the sliding door is fitted. Provided with a horizontal rail portion that supports the horizontal axis rollers on the left and right sides of the roller unit on the inner side from the lower end of the wall, and on the upper wall portion that connects between the upper ends of the both side walls, engaged portions formed on both sides of the base A pair of left and right engaging pieces that are movably engaged in the rail length direction and that are continuous in the rail length direction;
The base has two front and rear plate nuts located near both ends of the base and above the pair of left and right engaging pieces on the guide rail side, and passes through the base upward and is screwed into the plate nut. The suspension device for a sliding door according to claim 1, wherein the brake device is fixed to the guide rail by front and rear fastening screws. The guide means includes a saw blade cam surface formed in the sliding door moving direction on the lower side of the base, and a saw blade cam follower formed on the upper side of the braking body so as to contact the saw blade cam surface. And a cam groove that is provided at two positions in the front and rear in the sliding door movement direction of the braking body and in two positions in the front and rear of the base in the sliding door movement direction. The suspension device for a sliding door according to claim 1 or 2, wherein the brake body is lifted in parallel with a backward movement by a pin and a pin. The adjusting means is fixed to the base so that the position of the stopper can be adjusted forward and backward in the sliding door moving direction by a long hole provided in the base in the sliding door moving direction and a fastening screw penetrating the long hole upward. The brake apparatus for suspension sliding doors in any one of Claims 1-3. The adjusting means includes a screw shaft that is supported on the base parallel to the sliding door moving direction, and a female screw body that is screwed into the screw shaft, and one of the screw shaft and the female screw body can only rotate on the base. The suspension according to any one of claims 1 to 3, wherein the suspension is configured so as to be capable of forward / reverse rotation, and the other of the screw shaft and the female screw body is connected to the stopper that is movable in the sliding door moving direction. Brake device for sliding doors. The adjusting means is connected to the rotating operation tool supported on the base so as to be capable of rotating only, an eccentric cam provided on the rotating operation tool, and the stopper that is movable forward and backward in the sliding door moving direction, and the eccentric cam. The suspension door brake device according to any one of claims 1 to 3, wherein the stopper moves in a sliding door moving direction along with an eccentric rotation of the eccentric cam. The sliding door-side braked portion is a synthetic resin provided with fitting protrusions at both ends that can be fitted into fitting recessed portions provided at positions near both ends of the sliding door moving direction of the trolley body in the sliding door hanging roller unit. The brake device for a sliding door according to any one of claims 1 to 6, comprising a band-shaped body.

Images