JP3980761B2 - Door braking device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to a technical field related to a braking device that applies a braking force to a door plate when the door is closed.
[0002]
[Prior art]
Conventionally, as a door braking device, for example, the one described in JP-A-9-72154 is known.
[0003]
This conventional door braking device includes a groove-type rail attached to a door frame and the like, an inclined mountain-shaped braking plate attached to protrude inside the rail groove, and a traveling mechanism attached to the door plate and traveling along the rail. And a braking drive mechanism that applies a braking force to the door plate by being elastically displaced by contact with the brake plate and frictionally contacting the rail or the traveling wheel.
[0004]
[Problems to be solved by the invention]
In the conventional door braking device described above, if the braking force applied to the door plate is to be adjusted, it is necessary to replace all or part of the brake plate and brake drive mechanism, which makes it difficult to adjust the braking force. There is a problem that it is.
[0005]
The present invention has been made in view of such problems, and an object of the present invention is to provide a door braking device that can easily adjust the braking force applied to the door plate.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problems, the door braking device according to the present invention employs the following means.
[0007]
That is, according to the first aspect of the present invention, a groove-type rail attached to a door frame, a brake plate that protrudes into the rail groove and has an inclined surface, and is attached to the door plate and travels along the rail. Adjusting the amount of protrusion inside the rail groove on the brake plate in a door braking device comprising a travel mechanism and a brake drive mechanism attached to the door plate and applying a braking force to the door plate by contact with the brake plate the protrusion amount adjusting mechanism which is provided, projecting amount adjusting mechanism includes a base of U-shaped fixed to the door frame or the like by screws passing through the screw insertion hole of the brake plate so as to cover the other end of the brake plate, the base pan consists of a adjusting screw tip is screwed into Rutotomoni brake plate is inserted into the hole is caulked through a washer, the base, the spring member interposed braking plates, the other end of the brake plate, Approaching and moving away from the base according to the rotation of the adjusting screw It is characterized by.
[0008]
In this means, when the protrusion amount inside the groove of the brake plate rail is adjusted by rotating the adjustment screw of the protrusion amount adjusting mechanism, the brake drive amount of the brake drive mechanism is varied, and the member is not replaced. The braking force applied to the door plate can be adjusted.
Further, since the approach and separation of the other end of the brake plate to the base is performed against or along the spring pressure , the approach and separation are assisted and the operability is good.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a door braking apparatus according to the present invention will be described with reference to the drawings.
[0018]
This embodiment shows what was implement | achieved by the driving | running | working mechanism 1 which consists of the door-drive apparatus which supports the doorplate A which consists of sliding doors by a lower load type.
[0019]
The traveling mechanism 1 according to this embodiment is embedded and attached to a mounting groove Ac dug into the wood end surface (side end surface) Aa and the lower end surface Ab of the door plate A, and the exterior is formed in a block shape with an open bottom. It consists of a casing 11 that is fastened and fixed to the door plate A with mounting screws. A central shaft 12 is disposed in the casing 11 in the front-rear direction (thickness direction) of the door plate A. The central shaft 12 includes a first holder 13 that can slide only in the front-rear direction of the door plate A inside the casing 11, and a second holder 14 that can slide and rotate in the front-rear direction of the door plate A inside the casing 11. Are inserted and assembled. The first holder 13 is slid and displaced in the front-rear direction of the door plate A through the eccentric protrusion 16 by the rotation operation of the front-rear adjustment screw 15 facing the side surface of the casing 11 (see FIG. 6). The second holder 14 is rotationally displaced in the vertical direction of the door plate A via the slider 18 by the rotation operation of the vertical adjustment screw 17 facing the side surface of the casing 11 (see FIG. 5). In addition, the 2nd holder 14 arrange | positions the rotating shaft 14b in the front-back direction of the doorplate A inside the main-body part 14a formed in the U shape, and supports the driving | running | working wheel 19 rotatably. In addition, a projection 14 c that restricts a sliding area downward of a braking drive mechanism 2 described later is provided on the inner side surface of the main body 14 a of the second holder 14.
[0020]
In the traveling mechanism 1, the support position of the door plate A can be adjusted up and down and front and rear by rotating the front and rear adjustment screw 15 and the vertical adjustment screw 17.
[0021]
A braking drive mechanism 2 is integrated into the traveling mechanism 1. The brake drive mechanism 2 is a main body that is inserted and assembled into the central shaft 12 of the travel mechanism 1 and can slide in the front-rear direction and the vertical direction of the door plate A inside the casing 11 (first holder 13 and second holder 14). Part 21, a long hole 22 that allows the door plate A of the main body part 21 to slide in the vertical direction, a coil spring 23 that presses down the main body part 21 downward, and an arc shape at the lower part of the main body part 21. A traveling part 24 that projects downward from the traveling wheel 19 from the casing 11 and travels on a rail 3 to be described later, a friction material 25 such as rubber that is attached to the body part 21 and contacts the traveling wheel 19, and a second part from the body part 32. It comprises a stopper piece 26 extending in an arc shape to the vicinity of the protrusion 14c of the holder 14.
[0022]
In this braking drive mechanism 2, the friction material 25 and the traveling wheel 19 of the traveling mechanism 1 are released from sliding by sliding downward, and the friction material 25 and the traveling wheel 19 of the traveling mechanism 1 are in contact by sliding upward. It will be. Moreover, it will be displaced integrally with respect to the adjustment of the support position of the door plate A by the rotating operation of the front-rear adjustment screw 15 and the vertical adjustment screw 17 of the traveling mechanism 1. When the support position of the door plate A in the vertical direction is adjusted, as shown in FIGS. 5 and 6, the whole slides downward to change the protrusion amount a of the traveling wheel 19 of the traveling mechanism 1. Regardless, the protruding amount b of the traveling unit 24 from the traveling wheel 19 is not changed.
[0023]
The rail 3 on which the traveling wheel 19 of the traveling mechanism 1 and the traveling portion 24 of the braking drive mechanism 2 travel is formed in a groove shape having a substantially U-shaped cross section and is embedded and fixed to the door frame B.
[0024]
A brake plate 4 having a substantially U-shaped cross section is mounted inside the groove of the rail 3 so as to be protruded into the groove. Accordingly, the traveling unit 24 of the braking drive mechanism 2 that projects downward from the traveling wheel 19 of the traveling mechanism 1 and travels on the rail 3 slides upward when it contacts the braking plate 4. The braking plate 4 has an inclined surface 41 at one end and a seated screw hole 42, a screw insertion hole 43, and a small protrusion 44 at the other end.
[0025]
A protrusion amount adjusting mechanism 5 that adjusts the protrusion amount of the brake plate 4 is connected to the brake plate 4. The protrusion amount adjusting mechanism 5 includes a base 52 fixed by a screw 51 passing through a screw insertion hole 43 of the brake plate 4 so as to be covered with the brake plate 4 on the door frame B, and a base 52 that is inserted into the base 52 and is attached to the brake plate 4. The adjustment screw 54 is screwed into the screw hole 42 with a seat and the tip is crimped through a washer 53, and a spring material 55 is interposed between the base 52 and the small protrusion 44 of the brake plate 4. The base 52 is provided with countersunk holes 52b and 52c for receiving screws 51 and adjusting screws 54 in a U-shaped main body 52a and a small protrusion 52d which is a pair of small protrusions 44 on the brake plate 4.
[0026]
According to this embodiment, when the adjustment screw 54 of the protrusion amount adjusting mechanism 5 is rotated, the other end of the brake plate 4 approaches and separates from the base 52. As a result, the distance between the traveling portion 24 of the brake drive mechanism 2 and the brake plate 4 approaches and separates, and the amount of sliding upward of the brake drive mechanism 2 is changed. That is, the contact pressure between the friction material 25 of the braking drive mechanism 2 and the traveling wheel 19 of the traveling mechanism 1 is varied, and the braking force applied to the door plate A is adjusted.
[0027]
Since the adjustment of the braking force applied to the door plate A by the protruding amount adjusting mechanism 5 is performed by rotating the adjusting screw 54, the adjusting operation is easy. Further, since the approach and separation to the base 52 at the other end of the braking plate 4 is performed against or along the spring pressure of the spring material 55, the approach and separation are assisted and the operability is good.
[0028]
Furthermore, according to this embodiment, since the structure of the protrusion amount adjusting mechanism 5 is simple, it can be manufactured inexpensively and easily. Moreover, since the protrusion amount adjusting mechanism 5 is installed without affecting the arrangement of the rails 3, it is possible to additionally carry out existing rails.
[0029]
If the braking force applied to the door plate A is properly maintained, unnecessary wear damage of the braking plate 4 and the braking drive mechanism 2 can be prevented, so that the braking function can be effectively exhibited for a long time. Become.
[0030]
As described above, the present invention can be applied to other opening / closing structures such as an upper load type and a sliding door type in addition to the illustrated embodiment.
[0031]
【The invention's effect】
As described above, in the door braking device according to the present invention, when the amount of protrusion inside the rail groove of the brake plate is adjusted by the amount of protrusion adjustment mechanism and the amount of braking drive of the brake drive mechanism is varied, the member replacement is performed. Since the braking force applied to the door plate can be adjusted without performing the above, there is an effect that the braking force applied to the door plate can be easily adjusted.
[0032]
Furthermore, since the braking force applied to the door plate can be easily adjusted, it is possible to maintain the braking force properly and prevent unnecessary wear damage to the braking plate and the braking drive mechanism, which is effective for a long period of time. There exists an effect which can exhibit a braking function.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an embodiment of a door braking device according to the present invention.
FIG. 2 is an enlarged cross-sectional view of the assembled state of FIG.
3 is an enlarged view showing the operation of the main part of FIG. 2. FIG.
4 is another operation diagram in which another main part of FIG. 2 is extracted.
FIG. 5 is another operation diagram of FIG. 4;
6 is a cross-sectional view taken along the zigzag line of FIG. 2;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Traveling mechanism 13 1st holder 14 2nd holder 19 Traveling wheel 2 Braking drive mechanism 3 Rail 4 Brake plate 5 Protrusion amount adjusting mechanism 52 Base 54 Adjustment screw 55 Spring material A Door plate B Door frame

Claims (1)

A groove-type rail attached to a door frame, a brake plate that protrudes into the groove of the rail and has an inclined surface at one end, a traveling mechanism that is attached to the door plate and travels along the rail, and is attached to the door plate A door braking device comprising a braking drive mechanism that applies a braking force to the door plate in contact with the brake plate,
The brake plate is provided with a protrusion amount adjusting mechanism for adjusting the protrusion amount inside the groove of the rail, and the protrusion amount adjusting mechanism is a door frame with a screw passing through the screw insertion hole of the brake plate so as to cover the other end portion of the brake plate. and the base of the U-shape being fixed to the equal, the adjusting screw is screwed into Rutotomoni brake plate is inserted into the base of the countersink by the tip portion is caulked through a washer, a spring interposed base, the braking plates Ri Do from the wood, the other end of the brake plate, door braking device, characterized in that toward and away from the base in response to rotation of the adjustment screw.

Images