JP3972924B2 - Door closer stop mechanism and its combination - Google Patents

Description

    The present invention relates to the technology of a door closer stop device.

As a typical background art, there is a door closer stop device described in Patent Document 1.
However, there are the following problems with the conventional stop device for an imposition door closer.
1. When you put on or remove the stopper, it will make an audible noise such as snapping or banging.
2. It is difficult to change the stop strength slightly.
3. Stop strength changes slightly and is not stable.
4. The setting angle of the stop cannot be changed slightly.
5. The durability of the stopper fitting is insufficient.
6. It is difficult to increase the stop strength.
Of course, conventional stop devices do not always have all of the above problems, but every stop device usually has any of the above problems.

    There are standard mounting and parallel mounting depending on the mounting position of the imposing door closer. Standard installation is on the side where the door is pulled, and parallel installation is on the pushing side. The difference between standard mounting and parallel mounting is that the shape of the arm bracket is different and the rotation angle of the door closer shaft with respect to the opening angle of the door is different.

The stop device is generally provided at three positions with respect to the door closer body and the main arm, with respect to the main arm and the fork arm, and with respect to the fork arm and the bracket. As described above, there are some problems with the conventional stop device regardless of the position where the door closer is attached or the position where the stop device is provided.
JP 2001-303847 A

  The challenge is to solve all the problems described in paragraph 0002 in both standard and parallel mounting and at each position where the stop device is mounted.

First, the abnormal noise generated by the stopper is generated by sudden movement of the stopper when the stopper is applied or removed while any part of the stopper fitting is not completely fixed.
Problem 1 is solved by providing a structure in which such components are not provided.

  On the other hand, problems 2 to 6 are difficult to solve with the structure of the conventional stop device.

Explain why the problem is difficult to solve.
All stop devices for conventional door closers are provided at or near the shaft.
The axis is either the closer body axis, the arm axis connecting the main arm and the fork arm, or the bracket axis. The force of the spring that closes the door of the door closer is surprisingly strong, and the rotational force of those shafts becomes large. In order to stop the large force within a small radius, a large force is applied to each part. In addition, in order to stop a large force within a small radius, the operation of parts and the reliability of strength are required.
They are not yet fully resolved.

An example of the force applied to the conventional stop device will be described with reference to FIG.
In this method, a horizontal rotational force (178) and a horizontal spreading force (179) are generated simultaneously.
In another system, a horizontal rotational force and a vertical spreading force are generated simultaneously.

In the conventional stop device, another type of force is always applied to the stop device simultaneously with the horizontal rotational force.
The rotational force of the door closer shaft is quite large. If the force is stopped within a radius close to the rotating shaft, problems arise in securing the strength of the component and reliability of operation of the component.

The present invention seeks to solve the problems of the strength of the stop device parts and the reliability of operation by stopping the rotation of the mechanism according to claims 1, 2, 3, 4, and 5 at a position slightly away from the rotation shaft. To do.
The structural feature is that the bracket, main arm, and fork arm protrude from the connecting shaft to the end, the protruding portion is a latch, and the latch is received by the latch, thereby stopping the rotation at a position away from the rotating shaft. Also, secure the strength of the latch.

Another feature is that the U-shaped receiver according to claim 6 stops rotation with a latch interposed therebetween.
In this method, the force applied to the stop device when applying and removing the stop is only the rotational force in the horizontal direction, and the force applied to the stop device is not applied. There is.
The method of sandwiching the latch with a U-shaped or U-shaped catcher is possible by projecting from the blanket, main arm, or fork arm connecting shaft and sandwiching the projecting portion. It does not hold with conventional ones that do not protrude.

The mechanism according to claim 1 will be described with reference to FIGS.
This is a parallel mounting stop mechanism, not a standard mounting.
The bracket side fork arm (17) protrudes forward from the bracket shaft (33), and the protruding portion is used as a latch (18). The longer the protruding length, the greater the stop force can be obtained with a light force.

A bracket (14) is provided on the bracket (14), and the bracket-side fork arm is stopped from rotating with respect to the bracket by holding or holding the latch with the bracket.
The catcher can be fixed to the bracket at any angle by engaging the stop angle adjusting gears (23) and (24).

4 and 5 also show a combination of a latch and a catch according to claim 6.
The upper end (25) of the U-shaped receiver (16) is fixed to the bracket (14), and the latch (18) is sandwiched inside the U-shaped.
The lower end 26 of the catch is attached so as to be fastened to the bracket shaft 33 with the stop force adjusting screw 15.
The deeper the stop strength adjustment screw is tightened, the narrower the U-shaped mouth becomes. The tightening force of the latch increases the stop force.

If a brake pad (19) is provided on either the latch or the catch at the portion where the latch and the catch are in contact, a more stable fixing force can be obtained and a large fixing force can be obtained. The brake pad has the same effect as the brake pad of an automobile.
Similar effects can be obtained by providing a stop ball (38) as shown in FIG. 6 in place of the brake pad.
However, the brake pad maintains the stop state anywhere in the contact area, but with the stop ball, there is a difference that the stop ball maintains the stop only at the angle where the stop ball enters the receiving groove (37).

Explain how to “hold” and “hold” the latch with the money received.
The thing which clamps a latch with the U-shaped receiver of Claim 6 is what was shown by FIG.

15 and 16, the catches (144) and (154) between the latches (142) and (159) can be expressed as holding the catches with the latches.
On the contrary, it can be expressed as holding down the latch with the money received.

The bracket shaft is a part of the bracket. The arm shaft is a part of the main arm. In consideration of that, the U-shaped catch is the same as that provided on the bracket and on the bracket shaft. Providing the main arm and the arm shaft are the same. 5 and 12 illustrate this.

The mechanism according to claim 2 will be described with reference to FIG. This is also for parallel mounting.
This is because the mechanism according to claim 1 uses the bracket side fork arm side as a latch and the bracket side as a latch, and the bracket side as a latch and the bracket side fork arm side as a latch. is there.
The bracket (51) is protruded from the bracket shaft (55) to the tip, the protruding portion is used as a latch (52), a bracket (53) is provided on the bracket side fork arm (54), and the latch is sandwiched or pressed by the bracket. Stop the rotation of the bracket against the bracket side fork arm.

The mechanism according to claim 3 will be described with reference to FIG.
This can be used for both parallel and standard mounting.
Whereas the mechanism according to claims 1 and 2 is provided in the bracket portion, it is provided in the arm shaft portion.
The part of the main arm (78) that is connected to the arm shaft (88) protrudes from the arm shaft to the end, and the protruding portion
The latch (89) is used, and the arm shaft side fork arm (79) is provided with the catch (82), thereby stopping the rotation of the main arm relative to the arm shaft side fork arm.

The mechanism according to claim 4 will be described with reference to FIG.
This is obtained by reversing the relationship between the main arm and the arm shaft side fork arm of the mechanism according to claim 3. This can also be used for parallel mounting and standard mounting.
The side of the arm shaft side fork arm (103) connected to the arm shaft (102) protrudes from the arm shaft to the tip, the protruding portion is used as a latch (104), and a main arm (101) receiving plate (106) is provided. This stops the rotation of the arm shaft side fork arm relative to the main arm.

The mechanism according to claim 5 will be described with reference to FIG.
This can be used for parallel mounting and standard mounting.
This is a mechanism in which the mechanism is provided in the closer shaft portion. The side of the main arm (158) connected to the closer shaft (153) protrudes from the closer shaft to the tip, and the protruding portion serves as a latch (159), and the door closer body (152 ) Is provided with a receiver (154) to stop the main arm from rotating relative to the door closer body.

    The features common to the first, second, third, fourth, and fifth are that one of the bracket, the main arm, and the fork arm protrudes from the shaft to the tip, and the protruding portion is used as a latch, and the receiving member is connected to the shaft connected to the shaft. Is provided to stop the rotation of the latch with respect to the receiving metal.

Using the part protruding from the shaft as a latch, the latch is sandwiched between the U-shaped U-shaped receivers, and both ends of the U-shaped are clamped to stabilize the movement of the latch against the receiver. The feature of the door closer stop mechanism according to the first, second, third, fourth, and fifth aspects of the present invention is that it can be strongly stopped by force.

The mechanisms of claims 1, 2, 3, 4, and 5 are the same mechanisms except that the positions to be provided are different. Of these, only 1 and 2 are dedicated to parallel mounting, and 3, 4 and 5 are mechanisms that can be used for both parallel mounting and standard mounting.
The effect of these mechanisms is that the bracket, main arm, bracket side fork arm, and arm shaft side fork arm projecting to the tip of the shaft when a stop device is provided at any of the bracket shaft position, arm shaft position, and closer shaft position A large stop force can be obtained with a small force by sandwiching or holding the latch at a position slightly away from the shaft core to stop the movement, and the strength of the latch can be secured from the structure of the latch.

Also, by protruding the latch from the shaft to the tip, the latch is clamped by a U-shaped catcher, and the strength of the force that narrows both ends of the U-shape allows you to freely adjust the stable stop force and strength of the stop force A combination of the latch and the receipt according to claim 6 is possible.
With a conventional stop mechanism that does not protrude, it is not possible to adjust the stop force by narrowing both ends of the U-shape.

When the combination of the latch and the catch according to claim 6 is used for the stop mechanism according to claims 1, 2, 3, and 4, the effect of the stop device is greatest.
Explain the usage and effects at that time.

    The usage will be described with reference to FIG. FIG. 5 is a diagram in which the mechanism according to claim 1 is combined with the mechanism according to claim 6 in which the bracket shaft (33) side of the bracket-side fork arm (17) protrudes to the tip of the shaft to form a latch (18). . The usage and effects are the same as when the mechanism according to claims 2, 3 and 4 is combined with claim 6.

    To adjust the stop angle for stopping the door, loosen the receiver fixing screw (20), move the receiver (16), and change the meshing angle of the receiver gear (23) and the bracket gear (24). When the change is made, tighten the catcher fixing screw to fix the catcher (16) to the bracket (14). Now you can set the angle to keep the door open.

A method for adjusting the strength of the stop force will be described.
When the stop force adjusting screw (15) is turned in the screwing direction, the upper end (25) and the lower end (26) of the catcher (16) are narrowed, the force for tightening the latch (18) sandwiched between them is increased, and the stop force is increased. .
If you turn the stop force adjustment screw in the reverse direction, the stop force will be weakened.

Explain the effect.
As an advantage of applying a stop by sandwiching the latch between the U-shapes from above and below, the force applied to the stop device is only the rotational force in the horizontal direction, and the load on the stop device is lightened because no force in the other direction is applied.
By adjusting the stop force adjustment screw, you can finely adjust the strength of the stop force and obtain a strong stop force.
There are no moving parts to play when the stop is applied and when it is released.
By providing a brake pad (19) at the contact point between the latch and the catch, stable braking performance can be obtained at the time of stopping, and it can be stopped at an angle within the range where the brake pad is in contact. The door can be stopped even at an angle.

The latch is the bracket or the arm itself, and strong strength can be secured, and at the same time, the force applied to the latch and the catch can be reduced by increasing the length protruding from the shaft.
Since the latch protrudes first from the shaft, a combination of a latch and a catcher that has not been possible in the past as in the combination of claim 6 is also possible.

It is the figure which attached the door closer provided with the mechanism of Claim 1 to the door, and looked up from the bottom. It is the perspective view seen from the upper part of A part of FIG. It is an enlarged view of the A part of FIG. It is the figure which looked at FIG. 3 from the horizontal direction. It is a figure which shows the internal structure of FIG. This is a modified example in which a stop ball is provided on the latch. A, shows the shape of the fork arm. B, a modification of the fork arm is shown. A combination of a catch and a latch according to claim 6 is shown. A mechanism according to claim 2 is shown. It is the figure which looked up at the door closer which provided the mechanism of Claim 3 from the bottom. The mechanism according to claim 3 is shown in part B of FIG. A mechanism according to claim 4 is shown. An example different from the invention in which the latch is not sandwiched by the receiver is shown. It is the figure looked down on from the C part of FIG. The modification of Claim 1 which clamped the receiving metal with the latch is shown. A mechanism according to claim 5 is shown. It is an example which shows the conventional structure which provided the stop apparatus in the bracket axis | shaft.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wall 2 Hanging side vertical frame 3 Hinge 4 Door end side vertical frame 5 Wall 6 Upper frame 7 Upper frame pressing edge 8 Door 9 Door closer body 10 Closer shaft 11 Main arm 12 Arm shaft 13 Arm shaft side fork arm 14 Bracket 15 Stop Force adjusting screw 16 Bracket 17 Bracket side fork arm 18 Latch 19 Brake pad 20 Bracket pad fixing screw 21 Joint screw 22 Mounting screw 23 Gear 24 Gear 25 Upper end 26 Lower end 27 Washer 28 Washer 29 Washer 30 Washer 31 Clearance 32 Adjustment screw 33 Bracket Shaft 34 Door position when closed 35 Latch 36 Receiver 37 Receiving groove 38 Stop ball 39 Bracket bearing hole 40 Latch 41 Receiver 42 Upper end 43 Lower end 44 Latch 45 Holding force 51 Bracket 52 Latch 53 Receiving 54 Bracket-side fork arm 55 Bracket shaft 56 Gear 57 Gear 58 Receptor fixing screw 59 Joint screw 60 Stop force adjusting screw 61 Brake pad 71 Door end side vertical frame 72 Hanging origin side vertical frame 73 Hinge 74 Upper frame 75 Upper frame pushing edge 76 Door 77 Door closer body 78 Main arm 79 Arm shaft side fork arm 80 Bracket side fork arm 81 Bracket 82 Base 83 83 Stop force adjusting screw 84 Base lock fixing screw 85 Joint screw 86 Gear 87 Gear 88 Arm shaft 89 Latch 90 Brake pad 101 Main arm 102 Arm shaft 103 Arm shaft side fork arm 104 Latch 105 Joint screw 106 Receptacle 107 Gear 108 Gear 109 Receptacle fixing screw 110 Stop force adjustment screw 111 Brake 121 Arm shaft side fork arm 122 Bracket side fork arm 123 Bracket 124 Gear 125 Gear 126 Bracket shaft 127 Joint screw 128 Receiving screw fixing screw 129 Roller 130 Roller shaft 131 Latch 132 Receiving member 133 Elastic body 134 Washer 135 Stop force adjusting screw 136 Bracket spring 137 Receptacle groove 141 Bracket side fork arm 142 Latch 143 Bracket 144 Bracket 145 Brake pad 146 Joint screw 147 Washer 148 Stop force adjustment screw 151 Door 152 Door closer body 153 Closer shaft 154 Bracket 155 Brake pad 155 Brake pad 155 Brake pad 155 Brake pad 155 Gold fixing screw 158 Main arm 159 Hasp 160 Washer 161 Joint screw 162 Stop force adjusting screw 171 Bracket 172 Main arm 173 Stop spring 174 Stop ball 175 Stopper 176 Stopper fixing screw 177 Joint screw 178 Horizontal rotational force 179 Horizontal spreading force

Claims (5)

    The side of the bracket-side fork arm (17) connected to the bracket shaft (33) protrudes from the bracket shaft to the end to form a latch (18), and the bracket (14) has a U-shaped or U-shaped bracket (16). A door closer stop mechanism that holds the door opened by holding the latch (18) with the catcher (16) and holding it in the open position.     The bracket (51) protrudes from the bracket shaft (55) to the latch (52), and a U-shaped or U-shaped receiver (53) is provided on the bracket-side fork arm (54). A door closer stop mechanism that holds the door that was opened by holding the latch (52) at the position where it was opened.     The side of the main arm (78) connected to the arm shaft (88) protrudes from the arm shaft to the latch (89), and the arm shaft side fork arm (79) has a U-shape or U-shape. (82) A door closer stop mechanism in which the door opened by holding the latch (89) with the catcher (82) is held at the opened position.     The arm shaft side fork arm (103), which is connected to the arm shaft (102), protrudes from the arm shaft to the latch (104), and the main arm (101) has a U-shaped or U-shaped receiver (106) A door closer stop mechanism that holds the door opened by holding the latch (104) with the catcher (106) so that the door is opened.     The side of the main arm (158) connected to the closer shaft (153) protrudes from the closer shaft to the latch (159), and the door closer (152) is provided with a catch (154). The door is opened in the open position by pressing the shape so that the latch or catch is sandwiched between the U-shaped or U-shaped bifurcation. Door closer stop mechanism.