JPH03286080A - Intermediate stop device for sliding door - Google Patents

Abstract

PURPOSE:To easily release the engagement state of a sliding door by installing a pressing element operating means in which a manual operation part is fixedly installed on a supporting shaft for holding the basic edge part of the pressing element which contacts a wall and a compulsory retreat means for holding the pressing element in stable manner at a waiting position. CONSTITUTION:When a sliding door 2 is shifted in the left or right direction, a pressing element 4 is turned in the reverse direction to the shift direction R of the sliding door 2 around a supporting shaft 51 by the friction between the frictional surface 42a of the friction member 42 of the pressing element 4 and one side surface 1b of a wall 1. Then, an urging force acts in the direction for turning the supporting shaft 51 on the engagement surface 61 of the supporting shaft 51 from the top edge part 62b of an elastic member 62, and each turn of the pressing element 4 and the supporting shaft 51 is assisted. When the fritional surface 42b is separated from one side surface 1b, the pressing element 4 is turned to a waiting position A and held, and the engagement state of the sliding door 2 is released. Further, after the sliding door 2 is shifted to a desired position, a manual operation part 52 is operated to turn the pressing element 4 to an engagement position, and the frictional surface 42a is closely attached on one side surface 1b, and the sliding door 2 is stopped.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is useful, for example, when it is desired to stop a sliding door or the like configured to be able to self-return to a closed position by gravity at a desired intermediate position. The present invention relates to an intermediate stop device for a sliding door that is preferably used.

[Prior Art] As a sliding door, for example, one shown in FIG. 13 is known. That is, in this case, a rail C is installed on a wall surface having an opening a, and a sliding door d is mounted on this rail C with wheels e.
The sliding door d is suspended and supported by the wheels e rolling on the rail C.
can be opened and closed in the width direction. The rail C has a slight downward slope toward the closed position, so that when the sliding door d is released, the sliding door d automatically returns to the open position due to gravity. In the figure, f is a buffer cylinder that comes into contact with the arm g of the sliding door d before the closed position to reduce the speed of the sliding door d.

[Problems to be Solved by the Invention] However, with such a configuration, since the sliding door d closes automatically, it is not possible to leave the sliding door d open at a desired position.

For this reason, various intermediate stopping devices have been considered to stop the sliding door d of this type at a desired intermediate position, but all of the conventional devices operate the locking means by operating a lever or the like. The sliding door d is stopped and the locked state cannot be released unless the lever is operated again.

Therefore, a person who is unaware of the situation may apply strong force in an attempt to forcibly open or close the half-open sliding door d, and there is a risk that the intermediate stop device may be damaged by such unexpected external force.

The present invention aims to reliably eliminate such inconveniences with a simple configuration.

[Means for Solving the Problems] The present invention employs the following configuration in order to distantly achieve such an object.

That is, the intermediate stop device for a sliding door according to the present invention is suspended and supported on a rail provided on a wall so that it can be opened and closed in the left and right directions, and is applied to a sliding door that is biased so that it can self-return to one end of its movable range. An intermediate stop device equipped with a pusher;
The presser is equipped with a pusher operating means and a forced retraction means, and the pusher has a friction surface of a constant width at its tip that comes into contact with a fixed surface provided on the wall, and is provided in a substantially horizontal direction. The pusher operating means is for rotating the pusher in a substantially horizontal direction from a standby position where the friction surface is not in contact with the fixed surface to a locking position where the friction surface is in close contact with the fixed surface. , comprising a support shaft that holds the base end of the presser and a manual operation unit fixed to the support shaft, and the forced evacuation means is configured to move the support shaft as the presser rotates toward the standby position. This is for stably holding the pusher in a standby position by elastically biasing the support shaft in response to the rotation of the presser, and the manual operation section is configured to press the pusher against the elastic biasing force of the forced evacuation means. It is characterized in that it is configured such that the child can be temporarily pivoted from a standby position to a locking position and its friction surface can be brought into elastic contact with the fixed surface.

If you want to make the indenter strong and increase the frictional force between the friction surface and the fixed surface, you can fix the indenter to the metal indenter body and the tip of this indenter body. It is preferable to form a friction surface having a constant width on the friction member.

In order to reliably and stably hold the presser in the standby position, the forced retraction means includes four flat locking surfaces provided on the outer surface of the support shaft;
A plate-shaped plate whose distal ends come into elastic contact with two opposing surfaces of the locking surface when the support shaft rotates as the presser rotates toward the standby position, thereby elastically biasing the presser toward the standby position. It is preferable that the elastic member is provided with an elastic member. In that case, the elastic member may be linear.

In particular, when it is desired to simplify the structure of the forced evacuation means, the forced evacuation means should be constructed using two substantially orthogonal flat locking surfaces provided on the outer surface of the support shaft, and a structure in which the pusher pivots toward the standby position. It is preferable to include a plate-shaped elastic member whose distal end side comes into elastic contact with one of the locking surfaces when the support shaft rotates, thereby stably holding the presser at the standby position. In this case, the elastic member may be a single linear member.

In particular, when it is desired to simplify the assembly work, it is preferable to fix a prismatic pipe-shaped housing to the sliding door and accommodate the support shaft within this housing.

[Function] With such a configuration, when the friction surface of the pusher is elastically in close contact with the fixed surface, the self-propulsion of the sliding door is stopped. When force is applied to the sliding door from such a locked state to move it in either the left or right direction, the pusher is temporarily elastically deformed due to the friction between the friction surface and the fixed surface, and then moves in the opposite direction to the sliding door movement direction. Turn in the direction. The forced retraction means uses the rotation of the support shaft of the pusher operating means as the pusher rotates to elastically bias the support shaft, so when the friction surface separates from the fixed surface, the pusher moves away. It is rotated to a standby position and held there. As a result, the locked state of the sliding door is released, and the friction surface of the pusher is prevented from contacting the fixed surface while the sliding door is moving. After the sliding door is moved to a desired intermediate position, when an operating force is applied to the manual operation part to forcibly turn the pusher from the standby position to the locking position against the elastic biasing force of the forced retraction means, the above-mentioned As shown in the figure, the friction surface of the pusher comes into elastic contact with the fixed surface, and the self-propulsion of the sliding door is stopped. That is, since this friction surface has a certain width, the pusher cannot be rotated to the standby position unless a force of a certain level or more is applied to the sliding door to elastically deform the pusher. Therefore, the self-propelling of the sliding door can be stopped by this pusher.

[Example 1] An example of the present invention will be described below with reference to FIGS. 1 to 9.

A rail 11 is fixed to a wall 1 having an opening 1a, and a sliding door 2 suspended and supported by the rail 11 is provided with an intermediate stop device 3.

The rail 11 has a length approximately twice the width of the opening 1a, and has a slight downward slope toward the closed position of the sliding door 2.

The sliding door 2 has an upper end 2a facing the lower surface 11a of the rail 11, and wheels 2 provided on both left and right sides of the upper end 2a.
It is suspended and supported by the rail 11 via 1. This sliding door 2 can be opened and closed left and right by wheels 21 rolling on the rails 11. If you let go of your hand halfway through the open position, the wheels 21 will move to the rails 11 due to gravity.
1 and self-returns to the closed position.

The intermediate stop device 3 includes a pusher 4, a pusher operating means 5,
A forced evacuation means 6 is provided.

The presser 4 includes a metal presser main body 41 and a presser main body 4.
A friction member 42 made of an elastic material is fixed to a tip end 41a of the wall 1, and a friction surface 42a that comes into contact with one side 1b of the wall 1, which is a fixed surface, is formed at the tip of the friction member 42. This friction surface 42a has a constant width in the direction in which the sliding door 2 moves.

As shown in FIG. 4, the pusher operating means 5 moves from a standby position A, where the friction surface 42a is not in contact with one side 1b of the wall 1, to a locking position, where the friction surface 42a is in close contact with one side 1b of the wall 1. B
a support shaft 51 for rotating the presser 4 in a substantially horizontal direction and holding the base end 41b of the presser 4;
The manual operating section 52 is provided on the support shaft 51, and the manual operating section 52 can be rotated within a range of about 90' in a substantially horizontal direction from both sides of the sliding door 2. . Note that the manual operation part 52 is slightly protruded to the outside from the window 22 provided on the surface of the sliding door 2, and is fixed to the support shaft 51 after the support shaft 51 and the like are stored in the sliding door 2. .

The forced retraction means 6 moves the support shaft 51 in response to the rotation of the support shaft 51 as the pusher 4 rotates toward the standby position A side.
The four flat locking surfaces provided on the outer surface of the support shaft 51 are used for stably holding the presser 4 in the standby position A by elastically biasing the presser 4 to assist the pivoting movement of the presser 4. 61, and elastic members 62 that come into elastic contact with two opposing surfaces of these locking surfaces 61, respectively. As shown in FIG. 5, the elastic member 62 is a plate-shaped member with an integrated base end 62a.
The housing 7 has a distal end portion 62b that is elastically deformed in a substantially horizontal direction, and a proximal end portion 62a that is fixed to the sliding door 2.
For example, it is fixed by spot welding.

The housing 7 is made by joining channel members 71 having a U-shaped cross section facing each other into a prismatic pipe shape, and has a section corresponding to the manual operation section 52 as shown in FIGS. 3 and 6. A window 72 is provided. The intermediate stop device 3 is assembled into a unit with a housing 7, and the housing 7 is fixed inside the sliding door 2 using a plurality of screws (not shown). Note that 8 is a buffer cylinder that comes into contact with the arm 23 of the sliding door 2 before the open position to reduce the speed of the sliding door 2. Further, reference numeral 9 denotes a thin cover fixed to the upper end of the rail 11 via screws or the like (not shown).

According to such a configuration, as shown in FIG. 7, when the friction surface 42a of the pusher 4 is in close contact with one side surface 1b of the wall 1, the self-propulsion of the sliding door 2 is stopped.

From this locked state, as shown in FIG.
When a force is applied to the sliding door 2 to move it in either the left or right direction, the pusher 4 is supported in the opposite direction to the moving direction R of the sliding door 2 due to the friction between the friction surface 42a of the friction member 42 and the one side 1b of the wall 1. It rotates around the axis 51. During this turning, the friction member 42 is temporarily elastically deformed. When the support shaft 51 rotates in the same direction as the presser 4 as the presser 4 rotates, the rotation causes the tip 62 of the elastic member 62 to rotate.
A biasing force acts on the locking surface 61 of the support shaft 51 from b in the direction of rotating the support shaft 51, and the support shaft 51 and the presser 4
assists in turning movements. Then, the friction surface 42 of the presser 4
When a separates from one side 1b of the wall 1, the presser 4 is rotated to the standby position A and stably held at the standby position A. As a result, the locked state of the sliding door 2 is released, and the friction surface 42a of the pusher 4 touches the wall 1 while the sliding door 2 is moving.
Since the pusher 4 does not come into contact with one side 1b of the sliding door 2, a problem in which the pusher 4 becomes an obstacle to the movement of the sliding door 2 is avoided.

After moving the sliding door 2 to a desired intermediate position, as shown in FIG. When it is horizontally rotated from the standby position A in the direction of the locking position B, the friction member 42 first comes into contact with the wall 1. From this state, when the manual operation unit 52 is further operated to forcibly rotate the pusher 4 and the friction surface 42a is brought into close contact with the side surface 1b of the wall 1 as described above, the self-propulsion of the sliding door 2 is stopped. Ru. That is, since the friction surface 42a has a constant width in the left-right direction, when it elastically comes into close contact with one side surface 1b of the wall 1, this state is maintained unless an external force is applied, and the sliding door 2 is in the locked position. It will be held at B.

Therefore, with such a configuration, by moving the sliding door 2 to a desired intermediate position and then turning the manual operation part 52 approximately 456 degrees in the horizontal direction, the sliding door 2 can be easily and reliably moved.
can be left open at a desired intermediate position. Also, if you want to release the locked state of sliding door 2,
Just by slightly moving the sliding door 2 to either the left or right, the locked state can be reliably released. Therefore, even if a person who does not know the situation opens or closes the half-open sliding door 2, there will be no problem such as excessive external force being applied to the intermediate stop device 3.

Further, the presser 4 includes a metal presser main body 41 and a friction member 42 fixed to the tip 41a of the presser main body 41, and the friction member 42 has a friction surface of a constant width. By forming 42a, the presser 4 can be made stronger and its durability can be effectively improved. Furthermore, by using a material with high sliding friction for the friction member 42, the friction force between the friction surface 42a and the side surface 1b of the wall 1 can be effectively increased, so that the sliding door can be reliably stopped at a desired intermediate position. You can leave it there.

Furthermore, if the forced evacuation means 6 is provided with four flat locking surfaces 61 provided on the outer surface of the support shaft 51 and a plate-shaped elastic member 62 that clamps the opposing locking surfaces 61. , triggered by the pusher 4 turning to the standby position A side,
The presser 4 can be quickly turned to the standby position A. At the standby position A, the tip 62b of the elastic member 62
Since the locking surface 61 and the locking surface 61 come into close contact with each other and prevent rotation of the support shaft 51, the presser 4 can be reliably and stably held at the standby position A.

In addition, a prismatic pipe-shaped housing 7 is fixed to the sliding door 2,
If the support shaft 51 and the like are accommodated and supported within the housing 7, the intermediate stop device 3 can be made into a unit. Therefore, it can be easily assembled to the sliding door 2, and the assembly work can be simplified.

Note that the forced evacuation means is not limited to the one in the embodiment described above, and may be, for example, one shown schematically in FIGS. 10 to 12. The forced evacuation means 106 in FIG.
A pusher 104 is provided with four flat locking surfaces 161 provided on the outer surface of the sliding door 102 and a linear elastic member 162, and has a friction surface 142a to be brought into contact with the fixed surface 101b. The elastic member 1 is attached to two opposing surfaces of the locking surface 161 in order to force the rotation toward the standby position side as the locking surface 161 moves.
The tip end 162b of the pusher 62 is brought into elastic contact to stably hold the presser 104 in the standby position. 1st
The forced retraction means 206 shown in FIG. 1 includes two orthogonal flat locking surfaces 261 provided on the outer surface of the support shaft 251 and a plate-shaped elastic member 262, which is brought into contact with the fixed surface 201b. When the pusher 204 having the frictional surface 242a rotates toward the standby position as the sliding door 202 moves, the end portion 262b of the elastic member 262 is brought into elastic contact with one of the locking surfaces 261. Thus, the presser 204 is stably held in the standby position. The forced retraction means 306 in FIG.
2, and when the pusher 304, which has a friction surface 342a to be brought into contact with the fixed surface 301b, turns to the standby position side with the movement of the sliding door 302, the locking surface 361 One end portion 362b of the elastic member 362
The sides are brought into elastic contact to stably hold the presser 304 in the standby position.

[Effects of the Invention] Since the present invention has the above-described configuration, the sliding door can be reliably and easily left open at a desired intermediate position, and the sliding door can be moved slightly to either the left or right. The locking state of the sliding door can be easily released by pressing the button, and no special release operation is required. As a result, no excessive external force is applied to the intermediate stop device, and its function can be maintained over a long period of time.

In addition, the presser includes a metal presser body and a friction member fixed to the tip of the presser body, and a friction surface of a constant width is formed on the friction member. In this case, the pusher can be made stronger and the frictional force between the friction surface and the fixed surface can be effectively increased. Therefore, the durability of the pusher can be increased, and the sliding door can be reliably stopped at a desired intermediate position.

Further, the forcible retraction means is configured such that the tip end portion elastically contacts four flat locking surfaces provided on the outer surface of the support shaft and two opposing surfaces of the locking surfaces to elastically bias the presser toward the standby position. If the sliding door is equipped with a plate-like or linear elastic member, the pusher can be quickly rotated to the standby position and stably held at the standby position when moving the sliding door. Therefore, the pusher does not become an obstacle when moving the sliding door.

In addition, the forced retraction means includes two substantially orthogonal flat locking surfaces provided on the outer surface of the support shaft, and the tip end elastically contacts one of the locking surfaces to elastically bias the presser toward the standby position. The structure can be particularly simple if the elastic member is provided with a single plate-like or linear elastic member.

Furthermore, if a prismatic pipe-shaped housing is fixed to the sliding door and a support shaft or the like is accommodated and supported within the housing, the intermediate stop device can be made into a unit. Therefore, the sliding door can be easily assembled, and the assembly work can be simplified.

[Brief explanation of the drawing]

1 to 9 show one embodiment of the present invention, in which FIG. 1 is a partially sectional side view, FIG. 2 is an overall front view, FIG. 3 is a front view of the intermediate stop device, and FIG. The figure is an enlarged plan view of the presser, FIG. 5 is an enlarged plan view of the forced evacuation means, and FIG.
The figure is a plan sectional view showing an enlarged view of the presser operating means, FIG.
FIG. 8 and FIG. 9 are action explanatory diagrams. FIGS. 10, 11 and 12 are schematic plan views showing other embodiments of the present invention. FIG. 13 is a front view corresponding to FIG. 2 showing a conventional example. 1...Wall 1b...Fixed surface (-side)
2.102.202.302... Sliding door 3... Intermediate stop device 4.104.204.304... Pusher 5... Pusher operating means 6.106.206.306... Forced evacuation Means 7...
・Housing 11...Rail 41...Pusher body 42a-142a-, 242a s 342a
...Friction 42b...Base end portion 51.151.251.351...Support shaft 52...
Manual operation part 61.161.261.361...Locking surface 62.16
2.262.362...Elastic members 62a, 162a,
262a, 362a...Friction surface 62b, 162b, 262b, 362b...Tip portion 101b, 201b, 301b...Fixing surface A...Standby position B...Locking position Fig. 1

Claims (1)

[Claims] 1. An intermediate stop installed on a sliding door that is suspended from a rail provided on a wall so that it can be opened and closed in the left and right directions, and is biased so that it can self-return to one end of the movable range. A device,
It is equipped with a pusher, a pusher operating means, and a forced retraction means, and the pusher has a friction surface of a constant width at its tip that comes into contact with a fixed surface provided on the wall, and the pusher has a friction surface of a constant width that comes into contact with a fixed surface provided on the wall. The pusher operating means rotates the pusher in a substantially horizontal direction from a standby position where the friction surface does not contact the fixed surface to a locking position where the friction surface is in close contact with the fixed surface. The device is equipped with a support shaft that holds the base end of the pusher and a manual operation section fixed to the support shaft, and the forced retraction means is configured to prevent the pusher from pivoting toward the standby position. This is for stably holding the presser in the standby position by elastically biasing the support shaft in response to the rotation of the support shaft, and the manual operation section resists the elastic biasing force of the forced evacuation means. An intermediate stop device for a sliding door, characterized in that the pusher is temporarily rotated from a standby position to a locking position so that its friction surface can come into elastic contact with the fixed surface. 2. The presser includes a metal presser body and a friction member fixed to the tip of the presser body, and the friction member forms a friction surface with a constant width. The intermediate stop device for a sliding door according to claim 1. 3. The forced evacuation means causes the four flat locking surfaces provided on the outer surface of the support shaft to face each other when the support shaft rotates as the pusher rotates toward the standby position. 2. The intermediate stop device for a sliding door according to claim 1, further comprising a plate-shaped elastic member whose tip ends are in elastic contact with each of the two surfaces to stably hold the pusher in a standby position. 4. The forced retraction means causes the four flat locking surfaces provided on the outer surface of the support shaft to face each other when the support shaft rotates as the pusher rotates toward the standby position. 2. The intermediate stop device for a sliding door according to claim 1, further comprising a linear elastic member whose tip ends are in elastic contact with each of the two surfaces to stably hold the pusher in a standby position. 5. The forced evacuation means includes two substantially orthogonal flat locking surfaces provided on the outer surface of the support shaft, and the locking surfaces triggered by the rotation of the support shaft as the pusher rotates toward the standby position. 2. The intermediate stop device for a sliding door according to claim 1, further comprising a plate-shaped elastic member whose tip end side comes into elastic contact with one of the plate-shaped elastic members to stably hold the pusher in a standby position. 6. The forced evacuation means includes two substantially orthogonal flat locking surfaces provided on the outer surface of the support shaft, and the locking surfaces triggered by the rotation of the support shaft as the pusher rotates toward the standby position. 2. The intermediate stop device for a sliding door according to claim 1, further comprising a linear elastic member whose distal end side comes into elastic contact with one of said pushers to stably hold said pusher in a standby position. 7. The intermediate stop device for a sliding door according to claim 1, 3, 4, 5, or 6, characterized in that a prismatic pipe-shaped housing is fixed to the sliding door, and a support shaft is accommodated within the housing.