JP4426502B2 - Hanging door - Google Patents

Description

  The present invention relates to a suspension door provided with a brake structure for preventing a door panel from violently colliding with a door frame on a closed end side.

  A brake structure of this type of hanging door is known, for example, from Patent Document 1. There, a leaf spring that can be elastically deformed is arranged on the inner surface of the upper wall of the guide rail, and the upper surface of the runner unit fixed to the door panel is brought into sliding contact with the leaf spring so that the door panel violently collides with the opening edge on the closed end side. This eliminates collision noise, finger padding, and door panel bounce. The leaf spring is made of a plastic molded product that curves downward. One end of the leaf spring is fastened to the guide rail with a screw, and an adjusting screw for adjusting the braking force to a large or small size is screwed into the free end of the leaf spring. A similar proposal is also disclosed in Patent Document 2, in which the upper corner portion of the door panel is brought into sliding contact with the leaf spring directly.

Japanese Patent Laying-Open No. 2003-155865 (paragraph number 0015, FIG. 1) JP 7-286474 A (paragraph number 0016, FIG. 3)

  According to the brake structure of Patent Document 1, it is possible to prevent the door panel from violently colliding with the opening edge on the closed end side. However, since the leaf spring continues to be elastically deformed by the runner unit even when the door panel is closed, the closing stroke until the door panel stops after the brake starts to work is less than half the total length of the leaf spring. Is also less. For this reason, in order to completely absorb the inertial force of the door panel with a short closing stroke, it is necessary to increase the braking force of the leaf spring, and the door panel is opened against the frictional resistance between the leaf spring and the runner base. Since it must be operated, a large force is required when opening the closed door panel.

  Even though one end of a plastic leaf spring is fastened and fixed to the inner surface of the upper wall of the guide rail with a screw screwed in from the lower surface, the tip of the adjustment screw screwed into the free end of the leaf spring is connected to the upper wall of the rail. Adjust the braking force by pulling on. Therefore, there is no problem when the adjustment amount of the adjustment screw is small, but if the adjustment amount of the adjustment screw exceeds a certain value, it is inevitable that an excessive force will be applied to the fastening part, and the elasticity of the leaf spring will eventually be caused by creep deformation. Is easily damaged, and there is a problem in durability during long-term use.

  In this regard, according to the brake structure of Patent Document 2 in which the leaf spring is formed of a metal spring material, it is possible to ensure good durability during long-term use. However, like the brake structure of Patent Document 1, in order to shorten the closing stroke from when the brake starts to operate until the door panel stops, it is necessary to increase the braking force of the leaf spring. A large force is required for the opening operation.

  An object of the present invention is to make it possible to reliably stop a door panel with a short closing stroke in a suspension door having a brake structure, and to reduce the operating force of an opening operation.

As shown in FIG. 2, the present invention includes an upper guide rail 2 mounted on the upper edge of the door frame 1, a runner unit 7 guided and supported by the upper guide rail 2 so as to be movable in the left-right direction, and the runner unit 7. It is a suspension door provided with the door panel 5 suspended and held by the. As shown in FIG. 1, a brake structure S that brakes the closing operation of the door panel 5 is provided between the closed end of the upper guide rail 2 and the runner body 11 that travels in the upper guide rail 2 of the runner unit 7. ing. The brake structure S includes a brake block 20 that is fixed to the inner surface of the upper wall of the upper guide rail 2, and a leaf spring 22 that is assembled to the upper surface of the runner body 11 and that is in sliding contact with the brake block 20. Then, the leaf spring 22 is formed in the突弧shape an upwardly bulged, one end of the horizontal direction that is fixed to the runner body 11. The end portion of the leaf spring 22 on the open end side of the door panel 5 is fixed to the runner body 11, and the end portion on the closed end side of the door panel 5 is allowed to move freely. The lower surface of the brake block 20 is provided on the open end side, and is provided with an inclined guide surface 24 that is inclined upward toward the open end side, and is provided on the closed end side and is inclined upward toward the closed end side. The inclined guide surface 25 and the flat surface which connects both the inclined guide surfaces 24 and 25 are formed. During the opening operation, the leaf spring 22 is brought into sliding contact with the inclined guide surface 25 on the closed end side, and a first braking force is exerted to leave the door panel 5 in the closing direction, and during the closing operation, The leaf spring 22 is brought into sliding contact with the inclined guide surface 24 on the open end side so as to exert a second braking force for leaving the door panel 5 in the opening direction. The first braking force is configured to be smaller than the second braking force.

  The runner body 11 can be provided with a braking force adjusting mechanism T that adjusts the spring pressure of the leaf spring 22 against the brake block 20 to adjust the braking force of the brake structure S to a large or small value.

  Specifically, the braking force adjusting mechanism T is provided on an empty chamber 36 formed near the closed end of the runner body 7, an adjusting screw 37 inserted into the empty chamber 36, and a screw shaft 39 of the adjusting screw 37. A receiving piece 40 that is screwed and receives the free end 35 of the leaf spring 22 may be included. By rotating the adjusting screw 37 and moving the receiving piece 40 up and down in the empty space 36, the amount of bulging upward of the leaf spring 22 can be changed and the braking force of the braking force adjusting mechanism T can be adjusted. .

  As shown in FIG. 1, the vacant chamber 36 is formed in an inclined shape descending toward the closed end, and the receiving piece 40 is assembled in the vacant chamber 36 so as to be movable up and down in an oblique direction. Can do. By rotating the operation portion 46 of the adjusting screw 37 that is exposed on the lower surface of the runner body 7 near the closed end, the receiving piece 40 is moved up and down in an oblique direction in the empty space 36, and the braking force of the brake structure S Can be adjusted.

  As in the present invention, when the brake structure S is configured by the leaf spring 22 assembled on the runner unit 7 side and the brake block 20 fixed on the upper guide rail 2 side, When the runner unit 7 arrives, the leaf spring 22 is instantaneously pressed and a large braking force is exerted. Therefore, the door panel 5 can be stopped with a short closing stroke as compared with the conventional embodiment in which a leaf spring is provided on the upper guide rail side. In addition, it is not necessary to increase the braking force of the leaf spring 22 more than necessary, and the door panel 5 can be opened with a light force.

  However, it is desirable that the closing stroke of the brake structure S can be appropriately changed according to the weight and size of the door panel 5 or the user's taste and arm strength. In the present invention, in order to change the closing stroke, it is sufficient to substantially change the length dimension of the brake block 20 attached to the upper guide rail 2. Therefore, an appropriate closing stroke can be easily provided, and the construction cost of the hanging door can be reduced.

  If only one end of the leaf spring 22 is fixed to the runner body 11 and the other is movable, the disadvantage that the elasticity of the leaf spring is impaired by creep deformation is unlikely to occur, as in the form of fixing both ends of the leaf spring. The durability of the brake structure S during long-term use is improved.

  When the end on the open end side of the leaf spring 22 is fixed to the runner main body 11 and the end on the close end side is allowed to move freely, the braking force exerted by the leaf spring 22 during the opening operation is reduced during the closing operation. Smaller than that, it can be operated with ease. More specifically, as shown in FIG. 7A, during the closing operation, a frictional resistance force that leaves the leaf spring 22 in the opening direction (right direction) is generated. A rotational moment F1 is applied to increase the free end 35 around the fixed piece 29. As a result, the frictional resistance between the leaf spring 22 and the brake block 20 is increased, and a large braking force is exhibited. In other words, during the closing operation, in addition to the braking force derived from the original compression deformation of the leaf spring 22, the braking force derived from the previous rotational moment F1 can be obtained.

  On the other hand, when the door panel 5 is opened, a frictional resistance force is generated to leave the leaf spring 22 in the closing direction as shown in FIG. 7 (b). A rotational moment F2 is applied to raise the right end side of the leaf spring 22. However, since the fixing piece 29 on the right end side is fixed, the braking force derived from the rotational moment F2 is not actually exhibited. That is, since only the braking force derived from the original compression deformation of the leaf spring 22 is obtained during the opening operation, the door panel 5 can be moved and operated with a light force compared to the previous closing operation.

  If the brake main body 11 is provided with a braking force adjusting mechanism T that adjusts the braking force of the brake structure S by adjusting the spring pressure of the leaf spring 22 against the brake block 20, the runner unit 7 is attached to the guide rail 2. The spring pressure of the leaf spring 22 can be changed and adjusted while the door panel 5 is suspended. Therefore, the appropriate spring pressure can be appropriately and easily applied to various door panels 5 having different weights and sizes while the door panel 5 is suspended. It can be built quickly with little effort. It can also contribute to the reduction of the construction cost of the hanging door. It is also excellent in that an appropriate braking force according to the user's preference and arm strength can be easily applied to the brake structure S. When the leaf spring 22 and the braking force adjusting mechanism T for adjusting the spring pressure are incorporated in the runner body 11, the upper guide rail 2 can be compared with the conventional brake structure in which both members are incorporated on the guide rail side. A vertical dimension can be made small and, thereby, the accommodation dimension of the door frame 1 and the upper guide rail 2 can be made the same as the accommodation dimension of the normal door frame and the upper guide rail which are not provided with the brake structure.

  The braking force adjusting mechanism T is screwed and attached to an empty chamber 36 formed near the closed end of the runner body 7, an adjusting screw 37 inserted into the empty chamber 36, and a screw shaft 39 of the adjusting screw 37. If the receiving piece 40 for receiving the free end 35 of the leaf spring 22 is included, the adjustment screw 37 is rotated to move the receiving piece 40 up and down in the empty chamber 36. The braking force can be adjusted by changing the amount of bulge. Therefore, the structure can be simplified, and an increase in the manufacturing cost of the runner unit 7 due to the provision of the braking force adjusting mechanism T can be minimized.

  If the vacant space 36 is formed so as to be inclined toward the closed end side, as shown in FIG. 6, the operating portion 46 of the adjusting screw 37 is tilted from the lower diagonal direction using an operating tool such as a driver. Can be rotated. According to this, it is excellent in that the adjustment operation of the braking force adjustment mechanism T can be given appropriately and easily while the door panel 5 is suspended.

  1 to 7 show an embodiment in which a suspension door provided with a brake structure according to the present invention is applied to a sliding door. In FIG. 2, the sliding door includes guide rails 2 and 3 provided at the top and bottom of the door frame 1 and a door panel 5 that is opened and guided by both rails 2 and 3. The upper and lower guide rails 2 and 3 are both made of an aluminum mold.

  As shown in FIG. 5, the upper guide rail 2 has a rail portion 6, and a door panel 5 is suspended from the rail portion 6. As shown in FIG. 2, the upper end of the door panel 5 is suspended and supported on the guide rail 2 by runner units 7 and 7 provided on the left and right sides. And the lower surface side of the both ends of the door panel 5 is supported to the lower guide rail 3 by the pivot shaft 9 in a steady state. In FIG. 2, reference numeral 10 indicates a handle for operating the door panel 5.

  The runner unit 7 includes a runner body 11 that is guided and supported by the guide rail 2, a runner base 12 that is embedded and fixed in the upper corner of the door panel 5, and a vertically long runner that connects the runner body 11 and the runner base 12. It consists of a shaft 13. The runner body 11 includes a laterally long traveling block 15 made of a plastic molded product, four rollers 16 disposed on the front and rear of the traveling block 15, and a roller shaft 17 that freely supports the rollers 16. including. A runner shaft 13 is assembled in the center of the left and right of the travel block 15 so as to penetrate the block 15 in the vertical direction. By passing the horizontal shaft 19 between the travel block 15 and the runner shaft 13, the runner shaft 13 It is designed to prevent it from coming down. In FIGS. 3 and 5, reference numeral 17a denotes a retaining ring.

  Between the runner body 11 and the guide rail 2, the door panel 5 is prevented from colliding with the door frame 1 violently, and the door panel 5 itself is prevented from being damaged or having a finger jamming. A brake structure S for braking the closing operation of the panel 5 is provided.

  The brake structure S includes a brake block 20 that is fixed to the inner surface of the upper wall of the guide rail 2, and a brake shoe 21 that is assembled to the upper surface of the runner body 11 and is in sliding contact with the brake block 20. The brake shoe 21 is a salient arc-shaped leaf spring 22, and when the runner body 11 comes below the brake block 20, the brake shoe 21 exerts a braking action by slidingly contacting the lower surface of the brake block 20. The closing operation force is reduced, and the door panel 5 is closed and moved gently.

  The brake structure S only needs to be activated when the door panel 5 approaches the closed end. Therefore, the brake block 20 starts from the facing position of the runner unit 7 on the door end side when the door panel 5 is in a completely closed state as shown in FIG. The braking force of the brake structure S is provided only when the door panel 5 approaches the closed end side (leftward) and the leaf spring 22 contacts the brake block 20. Is to be demonstrated. The lower surface of the right end side (open end side) of the brake block 20 is formed on an inclined guide surface 24 that rises and inclines toward the open end side. A lower surface on the left end side (closed end side) of the brake block is formed on an inclined guide surface 25 that is inclined upward toward the closed end side. In FIG. 6, reference numeral 26 denotes a screw for fixing the brake block 20 to the guide rail 2.

  As shown in FIG. 3, the leaf spring 22 is formed by press-molding a horizontally-long rectangular metal piece, a square plate-like fixed piece 29 having a screw fixing hole 27, and a fixed piece 29. And a spring portion 30 extending in the left-right direction from the upper end. The spring portion 30 is curved so as to bulge upward, and when it contacts the brake block 20 as shown in FIG. Demonstrate.

  In FIG. 3, reference numeral 31 denotes a recess formed in a stepped shape on the upper portion of the runner body for the purpose of allowing bending deformation of the spring part 30, and reference numeral 32 denotes a vertical groove formed in a recess at the right end of the recess 31. Indicates. The leaf spring 22 is assembled to the runner body 11 by dropping the fixing piece 29 into the longitudinal groove 32 from above and inserting and mounting the screw 33 from the outside of the right end surface of the travel block 15. In this assembled state, the closed end side (left end side) of the leaf spring 22 is not fixed, but is a free end 35 that can freely move.

  In order to adjust the braking force by the brake structure S, the runner body 11 has a braking force adjusting mechanism T inside. In FIG. 1, the braking force adjusting mechanism T includes a vacant chamber 36 formed near the closed end of the runner body 11, an adjusting screw 37 inserted into the vacant chamber 36 from below, and a screw shaft 39 of the adjusting screw 37. It comprises a receiving piece 40 that is screwed and receives the free end 35 of the leaf spring 22. The vacant space 36 is formed in an inclined shape descending toward the closed end side. More specifically, the left and right wall surfaces defining the vacant chamber 36 are formed in an inclined shape that descends toward the closed end side, and the receiving piece 40 fitted and mounted in the vacant chamber 36 is guided by these wall surfaces. It can slide up and down. The front and rear surfaces and upper end of the vacant chamber 36 are open, and the receiving piece 40 is assembled into the vacant chamber 36 from the opening of the front and rear surfaces.

  As shown in FIGS. 3 and 4, a screw insertion hole 41 is formed in the lower end surface of the traveling block 15 facing the empty chamber 36, and an adjustment screw 37 is provided in the empty chamber 36 through the screw insertion hole 41. Is inserted. The tip of the adjustment screw 37 is screwed into a plate nut 43 that is fitted in a slit 42 formed in the receiving piece 40. The receiving piece is a deformed quadrangular columnar plastic molded product, and a through hole 45 that allows the screw shaft 39 of the adjusting screw 37 to be inserted is formed at the center thereof. The upper surface of the receiving piece 40 is formed so as to be always horizontal regardless of the vertical movement when assembled in the empty chamber 40. An engagement groove 47 is formed around the screw shaft 39 of the adjustment screw 37 in the vicinity of the operation portion 46, and the engagement groove 47 is not attached to a slit 49 formed on the front end surface of the traveling block 15. The retaining screw 50 is engaged to prevent the adjustment screw 37 from coming off.

  When the operation portion 46 of the adjusting screw 37 exposed on the lower surface near the closed end of the runner body 11 is rotated from the outside of the side end of the runner body 11 using an operation tool 51 such as a screwdriver, the receiving piece 40 becomes empty. The height position of the free end 35 of the leaf spring 22 can be adjusted up and down by moving relatively along the vertical direction 36 (see FIG. 4). This means that the braking force by the brake structure S can be adjusted to be large or small by changing the amount of bulging upward of the spring portion 30 of the leaf spring 22 in the natural state. Here, as shown in FIG. 6, the closed end of the runner base 12 facing the operation portion 46 of the adjustment screw 37 for the purpose of securing the entry angle of the operation tool 51 and facilitating the rotation operation of the adjustment screw 37. The corner on the side is notched.

  Next, the operation of the brake structure S having the above configuration will be described. In the position indicated by the solid line in FIG. 6, the brake block 20 does not exist above the runner unit 7, and therefore the braking function of the brake structure S is disabled and is in an inoperative state. For this reason, the operator can open the door panel 5 without hindrance.

  As shown in FIG. 1, when the door panel 5 is moved in the closing direction on the left side and the runner unit 7 comes to the position where the brake block 20 exists, the spring portion 30 of the leaf spring 22 is pressed against the lower surface of the brake block 20. A braking force against the closing operation force of the door panel 5 is exerted by sliding in contact with the state. If the inclined guide surface 24 is provided near the open end of the brake block 20, damage to the leaf spring 22 and the brake block 20 can be effectively prevented. In addition, it is possible to effectively suppress the occurrence of a collision sound between the brake block 20 and the leaf spring 22.

  Further, the door panel 5 is moved in the closing direction, and as shown by the phantom line in FIG. 6, the door panel 5 is formed close to the closing end of the brake block 20 in the closed state where the door panel 1 is brought into contact with the door frame 1 on the closing end side. The runner unit 20 is located at the location where the inclined guide surface 25 is present, and the leaf spring 22 is released from the compression deformation and returns to the natural state. According to this, in order to move the door panel 5 from the closed state to the opening direction, it is necessary to have a moving operation force to bring the leaf spring 22 into a compressed state, so that the door panel 5 is inadvertently opened. Can be prevented from moving to.

  In addition, in the brake structure S, the braking force exerted by the leaf spring 22 during the opening operation is smaller than that during the closing operation. FIG. 7A shows a moment state acting on the leaf spring 22 during the closing operation in the left direction, and FIG. 7B shows a moment state acting on the leaf spring 22 in the opening operation in the right direction. As shown in FIG. 7 (a), during the closing operation, a frictional resistance force is generated to leave the leaf spring 22 in the opening direction, so that the leaf spring 22 has a free end 35 centered on the right fixed piece 29. A rotational moment F1 to be raised acts. As a result, the frictional resistance between the leaf spring 22 and the brake block 20 is increased, and a large braking force is exhibited. In other words, during the closing operation, in addition to the braking force derived from the original compression deformation of the leaf spring 22, the braking force derived from the previous rotational moment F1 can be obtained.

  On the other hand, as shown in FIG. 7 (b), when the door panel 5 is opened, a frictional resistance force is generated to leave the leaf spring 22 in the closing direction. As a result, a rotational moment F2 is applied to raise the right end side of the leaf spring 22. However, since the fixing piece 29 on the right end side is fixed, the braking force derived from the rotational moment F2 is not actually exhibited. That is, since only the braking force derived from the original compression deformation of the leaf spring 22 is obtained during the opening operation, the door panel 5 can be moved and operated with a light force compared to the previous closing operation.

  According to this brake structure S, the leaf spring 22 and the braking force adjusting mechanism T are incorporated into the runner unit 7 to form a unit, which is excellent in that a suspension door can be constructed with high work efficiency.

  Further, when the braking force adjusting mechanism T is provided, the braking force of the leaf spring 22 is adjusted to be large or small even when the deceleration operating force of the brake structure S or the weight of the door panel 5 varies. The moving speed in the closing direction of 5 can be reliably controlled.

Longitudinal front view of a hanging door according to the present invention Overall configuration of the hanging door Disassembled perspective view of runner unit Longitudinal front view of main parts The figure which shows the assembly state of the runner unit to the upper guide rail Diagram for explaining the operation of the brake structure Diagram for explaining the operation of the brake structure

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door frame 2 Upper guide rail 5 Door panel 7 Runner unit 11 Runner main body 20 Brake block 22 Leaf spring 35 Free end 36 Cavity 37 Adjustment screw 39 Screw shaft 40 Receiving piece 46 Operation part S Brake structure T Braking force adjustment mechanism

Claims (4)

An upper guide rail (2) mounted on the upper edge of the door frame (1), a runner unit (7) guided and supported by the upper guide rail (2) so as to be movable in the left-right direction, and a runner unit (7) A hanging door comprising a door panel (5) suspended and held by
Brake structure that brakes the closing operation of the door panel (5) between the closed end of the upper guide rail (2) and the runner body (11) traveling in the upper guide rail (2) of the runner unit (7) (S) is provided,
The brake structure (S) has a brake block (20) fixed to the inner surface of the upper wall of the upper guide rail (2) and a leaf spring (slidably contacting the brake block (20) assembled to the upper surface of the runner body (11). 22)
The leaf spring (22) is formed in a projecting arc shape that bulges upward, and one end in the left-right direction is fixed to the runner body (11) ,
The end on the open end side of the door panel (5) of the leaf spring (22) is fixed to the runner body (11), and the end on the closed end side of the door panel (5) is allowed to move freely,
On the lower surface of the brake block (20), an inclined guide surface (24) provided on the open end side and inclined upward toward the open end side, and provided on the closed end side and directed toward the closed end side. An inclined guide surface (25) that rises and inclines and a flat surface that connects both inclined guide surfaces (24, 25) are formed,
During the opening operation, the leaf spring (22) is in sliding contact with the inclined guide surface (25) on the closed end side, and the first braking force is exerted to leave the door panel (5) in the closing direction. During the closing operation, the leaf spring (22) is in sliding contact with the inclined guide surface (24) on the open end side, and the second braking force is exerted to leave the door panel (5) in the opening direction. Is supposed to be
A suspension door characterized in that the first braking force is smaller than the second braking force . The runner body (11), by adjusting the spring pressure on the brake block (20) of the leaf spring (22), braking force adjusting mechanism for adjusting the braking force of the brake structure (S) of the magnitude (T) is Re et al provided The suspension door according to claim 1. The braking force adjusting mechanism (T) includes a vacant chamber (36) formed near the closed end of the runner body (7), an adjusting screw (37) inserted into the vacant chamber (36), and an adjusting screw ( 37) and a receiving piece (40) that is screwed onto the screw shaft (39) and receives the free end (35) of the leaf spring (22),
By rotating the adjusting screw (37) and moving the receiving piece (40) up and down in the empty chamber (36), the amount of bulging upward of the leaf spring (22) is changed, and the brake structure ( Tsuto Citea Ru claim 2, wherein to adjust the braking force of the S). The vacant chamber (36) is formed in an inclined shape descending toward the closed end side, and a receiving piece (40) is assembled in the vacant chamber (36) so as to be movable up and down in an oblique direction,
By rotating the operating portion (46) of the adjusting screw (37) that is exposed on the lower surface near the closed end of the runner body (7), the receiving piece (40) is moved up and down diagonally in the empty chamber (36). The suspension door according to claim 3, wherein the suspension door is adapted to adjust the braking force of the brake structure (S) .

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