JP2018155064A - Brake device for use with sliding sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brake device for use with a sliding sash which is capable of braking the sliding sash stably and reliably, making it easy to slim a member to be attached to a side of the sliding sash, and improving an operability when operating the sliding sash in a direction not braking the sliding sash.SOLUTION: A brake device for use with a sliding sash includes a brake body 2 attached to a sliding sash S and an abutting body 3 attached to a frame body A. The brake body 2 has a base body 4, a link connection body L accommodated in the base body 4 and having a mountain shaped configuration when viewed from a horizontal direction perpendicular to an opening/closing direction of the sliding sash S, and a cushion body D. The abutting body 3, in a direction J in which the sliding sash S is braked, pushes down a protrusion C of the link connection body L while the protrusion C approaches, comes into contact with and separates from it, and moves, in a direction in which the sliding sash S is not braked, without pushing down the protrusion C of the link connection body L while the protrusion C approaches, comes into contact with and separates from it. The cushion body D buffers the sliding motion when the protrusion C of the link connection body L is pushed down by the abutting body 3.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a brake device for braking the sliding door shoji that acts on at least one of closing and opening the sliding door shoji.

In recent years, sash windows or sliding doors with a sliding, single-drawing or double-drawing (drawing) type of sash window or sliding doors have improved airtightness, and the weight of sliding door shojis themselves has increased due to the spread of sliding door shojis with double-glazed glass. It is increasing. For example, some sliding door shojis have a weight exceeding 100 kg.
When closing such a heavy sliding door shoji, due to its high inertial force, it is necessary to take sufficient care not to pinch your hand, etc., and to increase safety, brake the sliding door shoji. It is desirable to provide a braking device.
Even if the weight of the sliding door is not so large, if the operating force when closing or opening the sliding door is large, the sliding door will hit the vertical frame of the frame and noise may be generated. Since it bounces off from the vertical frame, a brake device for braking the sliding door shoji is effective in order to eliminate such problems.

As a brake device that brakes when closing such a sliding door shoji, a configuration that brakes the sliding door shoji with a sliding frictional force (for example, see Patent Documents 1 to 3), and a configuration that brakes the sliding door shoji with a damping force of a damper. (See, for example, Patent Document 4).
The brake device for sliding door shoji of Patent Document 1 includes a braking member having two substantially parallel surfaces as friction surfaces, and a contact member having a sliding member that generates a sliding frictional force between the braking members. Is provided.
The brake device for sliding door shojis of patent documents 2 is provided with a pair of brake plates which counter, and a brake piece which generates sliding frictional force between the brake plates by inserting between the brake plates.
The brake device for sliding door shoji of Patent Document 3 includes a rack of a rack member, a brake shaft coaxial with a pinion that meshes with the rack of the brake body, and a friction member that generates a sliding friction force between the brake shaft and a pressing member. A member.
The brake device for sliding door shoji of Patent Document 4 includes a rack and a rotary damper that generates a damping force that is coaxial with a pinion that meshes with the rack in a fixed-side shock absorber, and is also equipped with a sliding spring shoji by the biasing force of the coil spring. A mechanism for closing.

Japanese Patent No. 9-317318 Japanese Patent Laid-Open No. 11-44148 JP 2005-232820 A JP-A-2005-201344

In the conventional sliding door shoji brake device, in the above-described configuration in which the sliding door shoji is braked by sliding frictional force, the magnitude of the braking force is uncertain due to the state of the contact surface, etc., which may result in insufficient braking force. At the same time, it is very difficult to adjust the braking force.
In addition, since it is necessary to generate a sliding frictional force, the sliding door shoji of the member attached to the frame (the braking member 2 of Patent Document 1, the brake piece 5 of Patent Document 2, and the brake body 21 of Patent Document 3) is opened and closed. Since the length is long, the degree of freedom for changing the attachment position of the member attached to the frame side is small.

In the conventional brake device for sliding door shojis, the structure that brakes the sliding door shojis with the damping force of the damper uses a rotary damper that is coaxial with the pinion that meshes with the rack. When the momentum is strong, the torque capacity of the rotary damper may be exceeded and the rotary damper may be damaged.
In addition, since the diameter increases when the damping force of the rotary damper is increased, there is a case where the width (thickness) of the sliding door shoji to which the brake device for the sliding door shoji is attached is restricted.
Furthermore, since the length of the direction to open and close the sliding door shoji of the member attached to the frame body (the shock absorber 21) is long due to the configuration including a mechanism for closing the sliding door shoji, the attachment position of the member attached to the frame body side is changed. The degree of freedom is small.
In addition, by providing a mechanism for closing the sliding door shoji as in Patent Document 4, the sliding door device can be reliably closed, but when the sliding door shoji is opened, a force acts in the direction of closing the sliding door shoji by the coil spring. Therefore, since a larger operating force is required at the beginning of opening the sliding door shoji, the operability of the sliding door shoji deteriorates.

  Therefore, in view of the situation described above, the present invention intends to solve the problem that the sliding door shoji can be braked stably and reliably, and the degree of freedom for changing the mounting position of the member to be attached to the frame body side is large. It is in the point which provides the brake device for sliding door shoji which can be made slim easily and can improve the operativity at the time of operating a sliding door shoji in the direction which does not brake a sliding door shoji.

The brake device for sliding door shoji according to the present invention is a brake device for braking the sliding door shoji that acts on at least one of when closing and opening the sliding door shoji for solving the above-mentioned problem,
A braking body attached to the upper surface of the sliding door shoji,
An abutting body with which the upper part of the sliding door is engaged, attached to the frame on the upper side of the opening, and in contact with the braking body;
Consists of
The braking body is
A base attached to the sliding door shoji,
A link coupling body composed of a first link and a second link, and a buffer body housed in the base body;
With
The link connector is
One end portion of the first link and one end portion of the second link are connected so as to be swingable around a horizontal axis perpendicular to the opening / closing direction of the sliding door shoji, and the one end portion is a protrusion protruding upward, It forms a mountain shape when viewed from the horizontal direction orthogonal to the opening and closing direction of the sliding door shoji,
The other end of the first link is supported by the base so as to be swingable about a horizontal axis perpendicular to the opening / closing direction of the sliding door shoji,
The other end of the second link is supported by the base so that it can slide in the opening / closing direction of the sliding door shoji,
The contact body is
In the direction of braking the sliding door shoji, while the protrusion of the link connector approaches, abuts and separates, the protrusion is pushed down,
In the direction where the sliding door shoji is not braked, the link connecting body moves so as not to push down the protrusion while the protrusion approaches, abuts and separates.
The buffer is
The sliding movement of the other end portion of the second link is buffered when the protrusion of the link coupling body is pushed down by the contact body (claim 1).

According to such a configuration, in the direction of braking the sliding door shoji, the operation of the other end portion of the second link that slides when the abutting body pushes down the protrusion of the link connecting body of the braking body can Since the body cushions, the sliding door can be braked stably and reliably as compared with the configuration in which the sliding door is braked by sliding friction force. Since the length of the direction which opens and closes a sliding door shoji is short, what is necessary is just to provide the function to push down a part, Therefore The freedom degree which changes an attachment position is large. Therefore, in order to easily change the position where the sliding door shoji is braked, and to enable the braking of the sliding door shoji both when closing and opening the sliding door shoji, or to increase the braking force, a plurality of contact bodies It is also easy to arrange.
Furthermore, since the buffer body of the braking body cushions the operation of the other end portion of the second link that slides when the contact body pushes down the protrusion of the link connecting body of the braking body, the buffer body Since it is easy to make it into a slim form, the braking body is less likely to be restricted in size due to the width (thickness) of the sliding door shoji when ensuring the required performance.
In addition, in the direction that does not brake the sliding door shoji, the contact body moves so as not to push down the projection of the link body of the braking body, so when operating the sliding door shoji in the direction that does not brake the sliding door shoji, Since the operating force can be reduced as compared with the case where a restoring force such as a coil spring acts in the direction opposite to the direction, the operability of the sliding door can be improved.

Here, the buffer is
In a preferred embodiment, the piston rod is a linear damper that generates a damping force when contracted from the extended state, and includes a return spring that returns the piston rod to the extended state.

According to such a configuration, since the shock absorber is a linear damper in which a damping force is generated when the piston rod is contracted from the extended state, the structure is simple and the reliability is improved. Becomes slimmer.
In addition, since the piston rod of the linear damper is returned to the extended state by the return spring, after the protrusion of the link coupling body is pushed down by the contact body, the protrusion is not pushed down by the contact body. If it becomes, a link coupling body will return to an original form reliably.

  Further, the height of the protrusion of the link coupling body is obtained by moving the position of the horizontal axis where the other end of the first link swings in the opening / closing direction of the sliding door shoji. It is a more preferable embodiment that includes an adjusting means for adjusting.

  According to such a configuration, the adjustment means moves the position of the horizontal axis at which the other end of the first link swings in the opening and closing direction to change the height of the protrusion of the link coupling body, thereby changing the second height. The stroke at which the other end of the link slides changes. Therefore, since the stroke of the sliding operation of the other end portion of the second link that is buffered by the buffer body changes, the braking force of the brake device can be easily adjusted.

The brake device for sliding door shoji according to the present invention is a brake device for braking the sliding door shoji that acts on at least one of when closing and opening the sliding door shoji for solving the above-mentioned problem,
A braking body attached to the upper surface of the sliding door shoji,
An abutting body with which the upper part of the sliding door is engaged, attached to the frame on the upper side of the opening, and in contact with the braking body;
Consists of
The braking body is
A base attached to the sliding door shoji,
First brake means and second brake means housed in the base body;
With
The first brake means includes
A unit frame slidable in the opening and closing direction of the sliding door shoji in the base;
A link coupling body composed of a first link and a second link, and a first buffer body housed in the unit frame;
With
The link connector is
One end portion of the first link and one end portion of the second link are connected so as to be swingable around a horizontal axis perpendicular to the opening / closing direction of the sliding door shoji, and the one end portion is a protrusion protruding upward, It forms a mountain shape when viewed from the horizontal direction orthogonal to the opening and closing direction of the sliding door shoji,
The other end of the first link is supported by the unit frame so as to be swingable around a horizontal axis perpendicular to the opening / closing direction of the sliding door shoji,
The other end of the second link is supported by the unit frame so as to be slidable in the opening / closing direction of the sliding door shoji,
The second brake means includes
A second buffer for buffering the sliding movement of the unit frame;
The contact body is
In the direction of braking the sliding door shoji, when the projection of the link coupling body approaches and abuts, the second buffering body operates, and while the projection of the link coupling body separates, While pushing down the protrusion,
In the direction where the sliding door shoji is not braked, the link connecting body moves so as not to push down the protrusion while the protrusion approaches, abuts and separates.
The first buffer is
After the second buffer body operates, the sliding operation of the other end portion of the second link is buffered when the protrusion of the link coupling body is pushed down by the contact body (claim 4).

According to such a structure, there exists an effect similar to the invention which concerns on the said Claim 1.
In addition, in the direction of braking the sliding door shodder, when the sliding door shoddle moves after the projection of the link coupling body of the first brake means comes into contact with the abutting body, the second buffer body of the second brake means first operates. Then brake the sliding door shoji. After the second brake means is operated in this way, the projection of the link connecting body of the first brake means is pushed down by the abutting body with the movement of the sliding door shoji, and the sliding operation of the other end of the second link is buffered. The first shock absorber operates to brake the sliding door shoji.
Therefore, since such a two-stage braking is performed, the braking force is large, so that it can be preferably used for an application in which the weight of the sliding door shoji is large and it is desired to increase the braking force.

Here, the first buffer and the second buffer are:
In a preferred embodiment, the piston rod is a linear damper that generates a damping force when contracted from an extended state, and includes a return spring that returns the piston rod to the extended state.

According to such a configuration, since the first shock absorber and the second shock absorber are linear dampers in which a damping force is generated when the piston rod contracts from the extended state, the shock absorber has a simpler structure. As a result, the reliability increases and the form of the shock absorber becomes slimmer.
In addition, since the piston rod of the linear damper is returned to the extended state by the return spring, after the protrusion of the link coupling body is pushed down by the contact body, the protrusion is not pushed down by the contact body. Then, the link coupling body of the first brake means is reliably returned to the original form, and the unit frame of the first brake means is slid and reliably returned to the original position in the base body.

  Further, by moving the position of the horizontal axis where the other end of the first link swings in the opening / closing direction of the sliding door shoji relative to the unit frame, the height of the protrusion of the link coupling body is increased. It is a more preferable embodiment that includes an adjusting means for adjusting the height (Claim 6).

  According to such a configuration, the adjustment means moves the position of the horizontal axis at which the other end of the first link swings in the opening and closing direction to change the height of the protrusion of the link coupling body, thereby changing the second height. The stroke at which the other end of the link slides changes. Therefore, since the stroke of the sliding operation of the other end of the second link that is buffered by the first buffer changes, the braking force of the first brake means can be easily adjusted.

Furthermore, the contact body is
A hanging piece having a roller that swings around a horizontal axis perpendicular to the opening / closing direction of the sliding door shoddle and rotatable about a horizontal axis perpendicular to the opening / closing direction of the sliding door shoji at the tip,
In the direction of braking the sliding door shoji, while the projecting portion of the link connecting body approaches, abuts and separates, the stopping body that stops the hanging piece and prevents the hanging piece from swinging;
It is a still more preferable embodiment that comprises (Claim 7).

According to such a configuration, the drooping piece swingable around a horizontal axis perpendicular to the opening / closing direction of the sliding door shoji is the main component of the contact body, and in the direction of braking the sliding door shoji, It is a simple structure that prevents rocking by the stopper piece. With such a simple structure, it is possible to configure a contact body that moves down so as not to push down the protrusion of the link coupling body in the direction of braking the sliding door shoddle and not push down the protrusion in the direction of not braking the sliding door shoji. The reliability of the operation of the contact body is increased, and the manufacturing cost can be reduced.
In addition, since a roller is provided at the tip of the hanging piece, when the abutment body pushes down the protrusion of the link coupling body in the direction of braking the sliding door shoji, the roller is pressed by the roller while rotating. Since the protrusion is pushed down, the operation of pushing down the protrusion becomes smooth and reliable.

According to the sliding door shoji brake device having the above configuration, the following effects are mainly achieved.
(1) Compared with the configuration in which the sliding door shoji is braked by sliding friction force, the sliding door shoji can be braked stably and reliably. (2) Since the degree of freedom of changing the mounting position of the abutting body is large, the sliding door is driven by the abutting body The position where the shoji is braked can be easily changed, and a plurality of abutting bodies are arranged so that the sliding door can be braked both when the sliding door is closed and when it is fully opened, or in order to increase the braking force. It is also easy.
(3) Since it is easy to make a buffer body into a slim form, when ensuring required performance, a braking body is not easily received from the restriction | limiting of a magnitude | size from the width | variety (thickness) of a sliding door shoji.
(4) When operating the sliding door shoji in a direction that does not brake the sliding door shoji, the operating force can be reduced compared to the case where a restoring force such as a coil spring acts in the direction opposite to the operation direction. Operability can be improved.

It is a perspective view which shows the brake device for sliding door shoji which concerns on Embodiment 1 of this invention. It is a longitudinal cross-sectional front view similarly, and has shown the state which closed the sliding door shoji. It is a longitudinal cross-sectional front view similarly, and has shown the state just before a brake device operate | moves when closing a sliding door shoji. It is a longitudinal cross-sectional front view similarly, and has shown the state which the brake device is operate | moving when closing a sliding door shoji. It is a disassembled perspective view of a braking body and a contact body. It is the principal part expanded longitudinal sectional view which looked at the sliding door shoji from the door-end side. It is a perspective view which shows the braking body of the brake device for sliding door shoji which concerns on Embodiment 2 of this invention. It is a longitudinal cross-sectional front view for operation | movement description, (a) is the state immediately before a brake device operate | moves when closing a sliding door shoji, (b) is the state which operation | movement of the 2nd buffer of the brake device was complete | finished, (c). Indicates a state in which the first shock absorber of the brake device is operating.

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and includes all the embodiments that satisfy the requirements described in the claims. It is a waste.
In addition, in this specification, the front-back and left-right directions are defined toward the closing direction (refer arrow J in the figure) of a sliding door shoji, and the figure seen from the left is made into a front view.

<Embodiment 1>
(Brake device)
As shown in the perspective view of FIG. 1 and the longitudinal sectional front views of FIGS. 2 to 4, the sliding door shoji S opens and closes an opening E that is, for example, an entrance and exit partitioned by a frame A. The brake device 1 for braking the sliding door shoji S according to the first embodiment is applied to the brake body 2 attached to the upper surface of the sliding door shoji S and the frame A on the upper side of the opening E where the upper portion of the sliding door shoji S is engaged. It consists of the contact body 3 to which the brake body 2 is attached.
The brake body 2 includes, for example, a base body 4 attached to the upper surface of the sliding door shoji S, for example, a door tip side, a link link body L including the first link 11 and the second link 12 accommodated in the base body 4, and a buffer body. D.
In the direction in which the sliding door shoji S is braked (in this embodiment, the closing direction J of the sliding door shoji S), the abutment body 3 approaches and abuts away from the protrusion C protruding upward from the link coupling body L. In the meantime, the protrusion C is pushed down. In the direction in which the sliding door shoji S is not braked (in this embodiment, the opening direction I of the sliding door shoji S), the abutment body 3 moves the projecting portion C while the projecting portion C approaches, contacts and separates. It moves so as not to push down (see the two-dot chain line in FIG. 2).

When the sliding door shoji S is opened from the state in which the sliding door shoji S is closed by the brake device 1 as shown by the arrow I in FIG. 2, the protrusion C of the link coupling body L of the braking body 2 is brought into contact with the abutting body. When it abuts on 3, the abutment body swings as shown by a two-dot chain line in FIG. Thereby, when opening the sliding door shoji S from the closed state, the operating force can be reduced as compared with the case where a restoring force such as a coil spring acts in the direction opposite to the operating direction. Therefore, the operativity of the sliding door shoji S can be improved.
Further, when the sliding door shoji S is closed as shown by the arrow J in FIGS. 3 and 4 from the state in which the sliding door shoji S is opened, the projection C of the link connecting body L comes close to and comes into contact with the contact body 3. During the separation, the protrusion C is pushed down as shown in FIG. As a result, the shock absorber D operates, and the sliding door shoji D is braked.

(Braking body)
2, the base body 4 and the cover body 5 of the braking body 2 are provided with mounting screws M and M in the through holes 5B and 5B of the cover body 5 and the through holes 4C and 4C of the base body 4, respectively. It is fixed to the upper surface of the sliding door shoji S by being inserted from above and screwed into the screw hole of the sliding door shoji S.

As shown in the longitudinal sectional front view of FIG. 2 and the exploded perspective view of FIG. 5, the through hole 11A of the one end F1 of the first link 11 and the through holes 12A and 12A of the one end G1 of the second link 12 are combined. In this state, by inserting the support shaft 7, the one end portion F1 of the first link 11 and the one end portion G1 of the second link 12 are set in a horizontal direction axis H1 (support shaft 7) perpendicular to the opening / closing direction of the sliding door shoji S. It is pivotably connected around.
By inserting the support shaft 8 in a state in which the through hole 11B of the other end F2 of the first link 11, the through holes 6A and 6A of the adjustment member 6, and the long holes 4A and 4A of the base 4 are combined, the first The other end F2 of the link 11 is supported by the base 4 so as to be swingable around a horizontal axis H2 (support shaft 8) orthogonal to the opening / closing direction of the sliding door shoji S.
By inserting the support shaft 9 in a state in which the through hole 12B of the other end portion G2 of the second link 12 and the long holes 4B and 4B of the base body 4 are combined, the other end portion G2 of the second link 12 becomes horizontal. It is supported by the base 4 so as to be slidable in the opening / closing direction of the sliding door shoji S while rotating around the direction axis H3 (support shaft 9).

As described above, the link connection body L configured by the first link 11 and the second link 12 and the like has a protrusion C in which the one end F1 of the first link 11 and the one end G1 of the second link 12 protrude upward. As seen from the horizontal direction orthogonal to the opening / closing direction of the sliding door shoji S, it forms a mountain shape, and the protrusion C protrudes upward from the upper surface opening 5A of the cover body 5.
The tip of the piston rod 20 </ b> A of the buffer body D contacts the other end G <b> 2 of the second link 12.
The shock absorber D is a linear damper (for example, a cylinder damper that dissipates kinetic energy using the resistance of the fluid) in which a damping force is generated when the piston rod 20A is contracted from the extended state, and the piston rod 20A is extended. A return spring (not shown) is provided to return to the position. Such a return spring may be incorporated in the cylinder or provided outside the cylinder.
The other end G2 of the second link 12 with which the tip of the piston rod 20A abuts when the protrusion C of the link coupling body L is pushed down by the abutment 3 as shown in FIG. The sliding motion of (the horizontal axis H3 orthogonal to the opening / closing direction of the sliding door shoji S) is buffered.

(Adjustment means)
As shown in the longitudinal cross-sectional front view of FIG. 2 and the main part enlarged vertical cross-sectional view of the sliding door shoji shown in FIG. 6 viewed from the door end side, the braking body 2 has the other end F2 of the first link 11 (see FIG. 5). The adjusting means K adjusts the height of the projection C of the link connecting body L by moving the position of the horizontal axis H2 where the oscillating movement is moved in the opening and closing directions I and J of the sliding door shoji S with respect to the base 4. Is provided. The main components of the adjusting means K are an adjusting screw 10 and an adjusting member 6.

The screw portion of the adjustment screw 10 is positioned in the notch 5C of the cover body 5, and the head of the adjustment screw 10 is engaged with the cover body 5 and positioned in the front-rear direction.
Since the adjustment screw 10 is screwed into the screw hole 6B of the adjustment member 6 from the front, the adjustment screw 10 is rotated so that the through-holes 6A and 6A of the adjustment member 6 are moved in the front-rear direction (the sliding door sliding door S opening / closing direction I). , J) can be changed.
Therefore, by rotating the adjusting screw 10, the support shaft 8 (see FIG. 5) moves in the front-rear direction along the long hole 4A of the base body 4, so that the horizontal shaft H2 (support shaft 8) is moved in the front-rear direction. You can change the position. Thereby, the height C of the link coupling body L can be adjusted. By adjusting the height of the projection C (distance between the horizontal axis H2 and the horizontal axis H3) by such an adjusting means K, the contact body 3, the stroke at which the other end G2 (horizontal axis H3) of the second link 12 that slides when the protrusion C is pushed down can be adjusted. Therefore, the stroke of sliding the other end G2 (horizontal axis H3) of the second link 12 buffered by the buffer body D changes, so that the braking force of the brake device 1 can be easily adjusted.

(Contact body)
As shown in the longitudinal sectional front view of FIG. 2, the mounting plate 13 of the contact body 3 is screwed into the screw holes of the frame A by inserting the mounting screws N and N from below into the mounting holes 13A and 13A. Thus, the frame (upper frame) A is fixed to the lower surface.

As shown in the longitudinal sectional front views of FIGS. 2 to 4 and the exploded perspective view of FIG. 5, the contact body 3 swings around a horizontal axis H4 orthogonal to the opening / closing direction of the sliding door shoji S, A hanging piece 14 provided with a roller 15 rotatable around a horizontal axis H5 orthogonal to the opening / closing direction of the sliding door shoji S, and a direction for braking the sliding door shoji S (in this embodiment, the closing direction J of the sliding door shoji S) Then, as shown in FIG. 3 and FIG. 4, while the protrusion C of the link connecting body L approaches, abuts, and separates, the stopping piece 19 that stops the hanging piece 14 and prevents the hanging piece 14 from swinging. With.
The collar 16A is inserted into the through holes 14A, 14A of the hanging piece 14, and the support shaft 17 is inserted into the shaft holes 13B, 13B and the collar 16A in a state where the collar 16A is aligned with the shaft holes 13B, 13B of the mounting plate 13. Thus, the hanging piece 14 is supported by the mounting plate 13 so as to be swingable about the horizontal axis H4 (support shaft 17).
When the collar 16B is inserted into the roller 15 and the collar 16B is aligned with the shaft holes 14B and 14B of the hanging piece 14, the roller 15 is suspended by inserting the support shaft 18 into the shaft holes 14B and 14B and the collar 16B. At the tip (lower end) of the piece 14, it is supported by the hanging piece 14 so as to be rotatable around the horizontal axis H5 (support shaft 18).

When the sliding piece 14 is closed in the direction of the arrow J when the sliding piece 14 is pushed in the direction of the arrow J when the sliding door is closed as shown by the arrow J in FIGS. Therefore, swinging is prevented.
In addition, when the sliding piece 14 is pushed in the direction of the arrow I when the sliding door is opened in the direction of the arrow I from the state where the sliding door S is closed, as shown by the arrow I in FIG. It swings around the direction axis H4 (support shaft 17).

According to the brake device 1 that brakes the sliding door shoji S according to the first embodiment, the abutting body 3 pushes down the protrusion C of the link coupling body L of the braking body 2 in the direction of braking the sliding door shoji S. The operation of the other end G2 of the second link 12 that slides (the horizontal axis H3 orthogonal to the opening / closing direction of the sliding door screen S) is buffered by the buffer body D of the braking body 2, so that the sliding door screen S is moved by the sliding friction force. Compared with the structure of braking, the sliding door shoji S can be braked stably and reliably. In addition, the contact body 3 attached to the frame A side has a function of pushing down the projection C of the link coupling body L of the braking body 2. Since the length in the direction to open and close the sliding door shoji S is short, the degree of freedom to change the mounting position is great. Therefore, the position where the sliding door shoji S is braked can be easily changed, and in order to make it possible to brake the sliding door shoji both when closing and opening the sliding door shoji S, or to increase the braking force, It is also easy to arrange the contacts 3, 3,.
Furthermore, the buffer body D of the brake body 2 buffers the operation of the other end G2 of the second link 12 that slides when the abutment body 3 pushes down the protrusion C of the link connecting body L of the brake body 2. Since it is easy to make buffer body D into a slim form because it is composition, when ensuring required performance, brake body 2 is hard to receive size restrictions from the width (thickness) of sliding door shoji S.

In addition, since the shock absorber D is a linear damper that generates a damping force when the piston rod 20A is contracted from the extended state, the structure is simple, so that the reliability is improved, and the shape of the shock absorber D is further improved. Become slim.
Furthermore, since the piston rod 20A of the linear damper is returned to the extended state by the return spring, the protrusion C of the link coupling body L is pushed down by the contact body 3, and then the protrusion C is moved by the contact body 3. If it will be in the state which is not pushed down, the link coupling body L will return to an original form reliably.

In addition, a hanging piece 14 that can swing around a horizontal axis H4 orthogonal to the opening / closing direction of the sliding door shoddle S is a main component of the contact body 3, and in the direction of braking the sliding door shoji S, This is a simple structure in which the rocking is prevented by the stopper piece 19. With such a simple structure, the contact body 3 that moves so as not to push down the projection C of the link coupling body L in the direction in which the sliding door shoji S is braked and does not push down the projection C in the direction in which the sliding door shoji S is not braked. Since it can comprise, the reliability of operation | movement of the contact body 3 becomes high, and a manufacturing cost can be reduced.
Furthermore, since the roller 15 is provided at the tip of the hanging piece 14, the roller 15 rotates when the abutment body 3 pushes down the protrusion C of the link coupling body L in the direction of braking the sliding door shoji S. Since the protrusion C is pushed down by the roller 15 while being pushed down, the operation of pushing down the protrusion C is smooth and reliable.

<Embodiment 2>
(Brake device)
FIG. 7 is a perspective view showing the braking body 2 of the sliding door shoji brake device 1 according to Embodiment 2 of the present invention, and FIG. 8 is a longitudinal sectional front view for explaining the operation of the braking body 2.
7 and 8, the same reference numerals as those in FIGS. 1 to 5 of the first embodiment denote the same or corresponding parts or portions.

The brake body 2 of the sliding door shoji brake device 1 according to Embodiment 2 includes a base body 4 attached to the sliding door shoji S, and a first brake means B1 and a second brake means B2 housed in the base body 4. .
1st brake means B1 is the structure similar to the braking body 2 of Embodiment 1, and is accommodated in the unit frame 21 which can slide the inside of the base | substrate 4 in the opening-and-closing direction of the sliding door shoji S, and the unit frame 21. The link coupling body L which consists of the 1st link 11 and the 2nd link 12, etc., and the 1st buffer D1 are provided.
The link connection body L is the same as the link connection body L of the first embodiment, and is provided not in the base body 4 but in the unit frame 21 as in the first embodiment.
When adjusting the braking force of the first brake means B1, the height of the projection C of the link link body L is adjusted by moving the position of the horizontal axis H2 in the opening / closing direction of the sliding door shoji S relative to the unit frame 21. A configuration similar to that of the adjusting means K of the first embodiment can be adopted.
The second brake means includes a second buffer body D <b> 2 housed in a case 22 integrated with the base body 4, and the second buffer body D <b> 2 buffers the sliding operation of the unit frame 21 with respect to the base body 4.

The first buffer body D1 and the second buffer body D2 are linear dampers that generate a damping force when the piston rods 20A and 20B are contracted from the extended state, and return the piston rods 20A and 20B to the extended state. A return spring is provided.
Further, the damping force of the second buffer body D2 is set smaller than the damping force of the first buffer body D1.
Since the second shock absorber D2 has a long stroke and a small damping force, the second shock absorber D2 may be a combination of a rotary tumbler and a rack instead of a linear damper.

(Operations of the first brake means and the second brake means)
When the sliding door shoji S moves in the closing direction J and the sliding door shoji S further moves in the closing direction J from the state in which the projection C of the link coupling body L shown in FIG. As shown in FIG. 8B, the piston rod 20B first contracts and the second buffer body D2 operates.
Since the protrusion C is pushed down by the contact body 3 as shown in FIG. 8C until the protrusion C is separated from the contact body 3 after the second buffer body D2 is operated, The piston rod 20A contracts and the first buffer body D1 operates.

According to the brake device 1 that brakes the sliding door shoji S of the second embodiment described above, the same operational effects as the brake device 1 that brakes the sliding door shoji S of the first embodiment can be obtained.
In addition, in the direction in which the sliding door shoji S is braked, when the sliding door shoji S moves after the projecting portion C of the link coupling body L of the first brake means B1 comes into contact with the abutting body 3, the second brake means B2 is first moved. The second buffer body D2 operates to brake the sliding door shoji S. After the second brake means B2 operates in this way, the projection C of the link connecting body L of the first brake means B1 is pushed down by the abutting body 3 as the sliding door shovel S moves, The first buffer body D1 operates to brake the sliding door shoji S so as to buffer the sliding motion of the end G2 (horizontal axis H3 orthogonal to the opening / closing direction of the sliding door shoji S).
Therefore, since such a two-stage braking is performed, the braking force is large, so that the sliding door shoji S is particularly heavy and can be suitably used for applications in which it is desired to increase the braking force.

  The brake device 1 that brakes the sliding door shoji S according to the first and second embodiments as described above can be used so as to act on at least one of when the sliding door shoji S is closed and opened.

A frame B1 first brake means B2 second brake means C protrusion D buffer D1 first buffer D2 second buffer E opening F1 one end F2 other end G1 one end G2 other end H1, H2, H3, H4 Horizontal axis I Sliding door shoji opening direction J Sliding door shoji closing direction K Adjusting means L Link connecting body M, N Mounting screw S Sliding door shoji 1 Brake device 2 Brake body 3 Contact body 4 Base 4A, 4B Slot 4C Mounting hole 5 Cover body 5A Upper surface opening 5B Through hole 5C Notch 6 Adjustment member 6A Through hole 6B Screw hole 7, 8, 9 Support shaft 10 Adjustment screw 11 First link 11A, 11B Through hole 12 Second link 12A, 12B Through Hole 13 Mounting plate 13A Mounting hole 13B Shaft hole 14 Hanging piece 14A Through hole 14B Shaft hole 15 Rollers 16A, 16B Collar 17, 18 Support shaft 19 Stopping body 20A, 20B Piston rod 21 Knit frame 22 case

Claims (7)

A brake device for braking the sliding door shoji, which acts on at least one of closing and opening the sliding door shoji,
A braking body attached to the upper surface of the sliding door shoji,
An abutting body with which the upper part of the sliding door is engaged, attached to the frame on the upper side of the opening, and in contact with the braking body;
Consists of
The braking body is
A base attached to the sliding door shoji,
A link coupling body composed of a first link and a second link, and a buffer body housed in the base body;
With
The link connector is
One end portion of the first link and one end portion of the second link are connected so as to be swingable around a horizontal axis perpendicular to the opening / closing direction of the sliding door shoji, and the one end portion is a protrusion protruding upward, It forms a mountain shape when viewed from the horizontal direction orthogonal to the opening and closing direction of the sliding door shoji,
The other end of the first link is supported by the base so as to be swingable about a horizontal axis perpendicular to the opening / closing direction of the sliding door shoji,
The other end of the second link is supported by the base so that it can slide in the opening / closing direction of the sliding door shoji,
The contact body is
In the direction of braking the sliding door shoji, while the protrusion of the link connector approaches, abuts and separates, the protrusion is pushed down,
In the direction where the sliding door shoji is not braked, the link connecting body moves so as not to push down the protrusion while the protrusion approaches, abuts and separates.
The buffer is
Buffering the sliding movement of the other end of the second link when the projection of the link coupling body is pushed down by the contact body,
Brake device for sliding door shoji. The buffer is
A linear damper in which a damping force is generated when the piston rod contracts from an extended state, and includes a return spring that returns the piston rod to the extended state.
The brake device for sliding door shoji according to claim 1 or 2. The height of the projection of the link coupling body is adjusted by moving the position of the horizontal axis where the other end of the first link swings in the opening / closing direction of the sliding door shoji with respect to the base. Adjusting means for
The brake device for sliding door shoji according to claim 1 or 2. A brake device for braking the sliding door shoji, which acts on at least one of closing and opening the sliding door shoji,
A braking body attached to the upper surface of the sliding door shoji,
An abutting body with which the upper part of the sliding door is engaged, attached to the frame on the upper side of the opening, and in contact with the braking body;
Consists of
The braking body is
A base attached to the sliding door shoji,
First brake means and second brake means housed in the base body;
With
The first brake means includes
A unit frame slidable in the opening and closing direction of the sliding door shoji in the base;
A link coupling body composed of a first link and a second link, and a first buffer body housed in the unit frame;
With
The link connector is
One end portion of the first link and one end portion of the second link are connected so as to be swingable around a horizontal axis perpendicular to the opening / closing direction of the sliding door shoji, and the one end portion is a protrusion protruding upward, It forms a mountain shape when viewed from the horizontal direction orthogonal to the opening and closing direction of the sliding door shoji,
The other end of the first link is supported by the unit frame so as to be swingable around a horizontal axis perpendicular to the opening / closing direction of the sliding door shoji,
The other end of the second link is supported by the unit frame so as to be slidable in the opening / closing direction of the sliding door shoji,
The second brake means includes
A second buffer for buffering the sliding movement of the unit frame;
The contact body is
In the direction of braking the sliding door shoji, when the projection of the link coupling body approaches and abuts, the second buffering body operates, and while the projection of the link coupling body separates, While pushing down the protrusion,
In the direction where the sliding door shoji is not braked, the link connecting body moves so as not to push down the protrusion while the protrusion approaches, abuts and separates.
The first buffer is
After the second buffer body operates, the sliding operation of the other end portion of the second link is buffered when the projection of the link coupling body is pushed down by the contact body.
Brake device for sliding door shoji. The first buffer and the second buffer are:
A linear damper in which a damping force is generated when the piston rod contracts from an extended state, and includes a return spring that returns the piston rod to the extended state.
The brake device for sliding door shoji according to claim 4. By moving the position of the horizontal axis where the other end of the first link swings in the opening and closing direction of the sliding door shoji relative to the unit frame, the height of the protrusion of the link coupling body is increased. Comprising adjusting means for adjusting,
The brake device for sliding door shojis according to claim 4 or 5. The contact body is
A hanging piece having a roller that swings around a horizontal axis perpendicular to the opening / closing direction of the sliding door shoddle and rotatable about a horizontal axis perpendicular to the opening / closing direction of the sliding door shoji at the tip,
In the direction of braking the sliding door shoji, while the projecting portion of the link connecting body approaches, abuts and separates, the stopping body that stops the hanging piece and prevents the hanging piece from swinging;
Comprising
The brake device for sliding door shoji of any one of Claims 1-6.

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