JPH069274Y2 - Braking device for window arms - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a braking device for a window opening / closing arm rod (pushing / pulling tool into / from which a rod moves in and out of a tubular body).

(Prior Art) Previously, the same inventor as the applicant of the present application had previously filed an extension braking device (actual application No. 61-21954) attached to a stay damper, but the extension force of the ammunition was loosely fitted to the operating rod. The angular edge of the hole of the braking plate that is tilted due to the action is in an insignificant state due to the action of the contact portion with the operating rod rising and separating in an arc shape substantially near the pivotal portion, so that The wedge-like biting edge can be pressed against the operating rod in a circular arc direction with the pivot point as a fulcrum at the opposite side of the pivot point, that is, at each edge of the protrusion for finger pressure operation. As described above, since the portion that restricts the reciprocating motion of the operating rod is limited to one place, when the braking device is attached to the rotating window, the bullet is strengthened to an excessive extent by the corner edge of the hole of the braking plate. If the wedge-shaped pressure contact is not strengthened, the window will recede due to wind pressure (gust) or the surface of the operating rod or Such as the corner edge of the braking plate hole is damaged, the other hand bullet machine nasty drawback is interposed that manual operation is difficult to strengthen.

Also, the rotary window sliding device disclosed in Japanese Utility Model Laid-Open No. 62-180169 is provided, but the (bracket) of the braking plate on the spring side is always trying to separate from the rod and cannot be pressed and operated. This also hinders the pressure release from the button, and there is no long hole for the operation button to move laterally to the lower frame side of the window opening frame, which is a practical defect.

The arm rod side (corner edge) of the braking plate slightly presses against the rod, but as a result, the force acts in the direction of advancing the rod, so the braking effect is reduced by half, and the pressure contact with the rod is made in the same manner as in the prior art described above. There is only one part that blocks the forward movement, and it is extremely unstable even when the window is opened and closed by wind pressure.

(Problems to be solved by the invention) The rotating window is provided with a function of not only opening and closing by manual operation but also stopping at any position in preparation for daylighting, ventilation, wind and rain intrusion, etc. The pressure contact action against the operating rod coming in and out can obtain the pressure contact effect by strengthening the ammunition, but it has disadvantages such as obstacles to manual operation, so the simple addition function that overcomes this drawback impairs aesthetics It is a desire of the sash industry to improve without any improvement.

(Purpose of the Invention) The pressure contact force to the operating rod of the above-mentioned braking device previously filed by the same inventor as the applicant of the present application is doubled by a simple means to surely achieve arbitrary stop during window opening and backward avoidance by wind pressure. We will mass-produce the fully functional braking device with low cost and provide it to the market.

(Means for Solving the Problem) This invention adopts the following configuration as means for solving the above problems. That is, it is loosely fitted via a coil spring to a rod that comes in and out from a cylindrical body that is pivotally supported by a bracket fixed to the lower frame of the window opening frame, expansion is suppressed in the lower part, and expansion in the upper part is V-shaped. This is a braking device for a window opening / closing arm rod in which a pair of brake plates that are tilted to the inside are connected to another end that is loosely inserted in the rod and is connected to the end of the cylindrical body.

In the above configuration, there is an embodiment in which a grip having a trapezoidal recess is slidably inserted into the upper crosspiece of the receiving tray via a spring.

Instead of the linking means of the coil spring and the braking plate in the above configuration, both sides of the coil spring having a rectangular cross section are tilted so that the corners of the coil spring are pressed against each other, and a knob is attached to the end extending above the receiving space. There is an embodiment in which the specially shaped rectangular spring is externally fitted to the rod inside the receiving space.

(Operation) In the arm rod for opening and closing the window in this invention, a bracket attached to the rear portion of the tubular body with a pin as a pivot is fixed to the lower edge of the window opening frame on the rear side of the tubular body, and on the other end to the tip side of the rod. In the same manner as the former, since the bracket attached by using the pin as the pivot is fixed to the lower edge side of the window, the window is opened to the position where the rod is pulled out from the tubular body to the maximum extent.

The tip of the braking plate is bulged above the receiving box, which has a pair of braking plates that are loosely inserted in the rod connected to the end of the tubular body, so that the bulging parts can be easily gripped. If held by the pair of brake plates, the pair of brake plates will compress the coil springs, and the lowering of the receiving box will prevent the expansion of the coil spring. Since the hole of the braking plate is parallel to the axis of the rod, since the hole of the braking plate and the rod originally have a play gap, they are completely in a non-contact state, There is no hindrance to the forward / backward movement of the, and the window can be freely opened and closed.

Next, in order to stop the rod arbitrarily, release the hand from the brake plate that was being held by your hands, and the pair of brake plates are restored by the coil springs. Since there are no obstacles, the action of tilting (tilting) to the left and right with the lower part as the fulcrum will work. In such a case, the corner edges of the holes of the pair of brake plates will rotate clockwise (closer) to the cylinder (right). Direction, a wedge-shaped bite pressure contact is made diagonally to the rod, and on the other side, a counterclockwise counterclockwise rotation (left) bitwise wedge-shaped bite pressure contact is generated at the same time. Due to the relative relationship (described later), the rod is prevented from advancing and retreating, and it surely stops under a braking condition that can sufficiently withstand wind pressure, and it was fully demonstrated in repeated severe experiments. It is a thing.

Further, as another means for holding the braking plates together, when grasping and pushing the grip with the slip prevention formed on the upper surface and the peripheral surface which are slidably inserted through the spring on the upper bar formed on the receiving surface, , The trapezoidal depression of the grip moves the braking plates to a parallel state until their slopes reduce the distance between the braking plates and come into contact with the upper crosspiece formed on the upper surface of the box and stop. There is a play between the holes and the rods of each brake plate, and the rod can move back and forth freely.On the other hand, if the pressure of the grip is released, the brake plates will come into contact with the rod in a wedge-like pressure contact in the relative direction as described above. The movement of the rod, that is, (the rotation of the window) is braked.

Even if a coil spring with a circular cross section is changed to a square shape and both sides of the spring are tilted in advance and a special spring mechanism in which the knobs are attached to the ends of the coil spring, both knobs are held and wedge-shaped with respect to the rod. The principle that the wedge-shaped pressure contact is generated by releasing the pressure contact and moving the rod and releasing the knob holding on the other hand and restoring the rectangular spring end side is the same as the case of the above-mentioned corner edge pressure contact between the circular coil spring and the hole of the braking plate. Be similar.

(Embodiment) FIG. 1 is a schematic perspective front view in which the braking device of the present invention is attached to a lower edge of a rotating window and a lower frame of a window opening. In the figure, W
Is fixed to a bracket 4 which pivotally supports a mounting member 3 to which a tip of a rod 2 is screwed on the lower edge side of a rotating window, while a bracket 5 which pivotally supports a cylindrical body 1 into and out of which the rod 2 is inserted is below a window opening. The rod 2 is fixed to the frame F, and the rod 2 moves in and out of the cylinder 1 as the window W rotates, and the braking devices B ₁ B ₂ B ₃ are connected to the end of the cylinder 1 as shown in FIG. However, the details will be described below in order from the braking device of claim (1) with reference to exemplary drawings. 2 and 3 show a braking device B _{1 according} to claim (1), in which a coil spring 6 (helix spring) is interposed in a rod 2 which goes in and out from a cylindrical body 1 having a rectangular cross section as the window is opened and closed. and it is loosely fitted with a pair of brake plates 7, 7, further comprising a recess 9 having a groove width obtained by adding the upper crosspiece 8 width freely crown wear at the lower end ₇₁ thickness and above each brake plate 7 to the bottom, and A receiving box 11 having a swash wall 10 formed at the front is loosely inserted and fitted into the cylindrical body 1. Therefore, the braking plate 7 is the coil spring 6
As the natural length of the
7 Because the spread width of _{1 1} is suppressed, the upper part is strongly pushed down and the fan tilts so that the fan expands.

In such a case, the hole 1 preliminarily formed in the braking plate 7 and loosely fitted in the rod 2.
The corner edge 13 (corner edge) on the upper side of the outer wall of 2, 12 is against the rod 2.
One side is pressed toward the right side and the other side is pressed toward the left side so as to contact the wedge, respectively, and succeeded in completely preventing lateral movement (reciprocating motion) of the rod 2. That is, the braking plate 7 is 1
In the case of a pair, the pressure contact effect on the rod 2 is doubled as compared with the case of one sheet, and the pressing force acts from the direction that changes in the relative direction respectively, so in any case of the reciprocating motion of the rod 2 (forward, backward) It is extremely effective.

In practice, if the gap between the hole 12 of the braking plate 7 and the rod 2 is increased, the tilting of each braking plate is increased, and the expansion distance between the two is extended, and it is inconvenient to hold the wedge-shaped pressure contact by grasping it with a hand. Further, if the braking plate 7 comes into contact with the sloping wall 10 of the receiving box 11, the wedge-shaped pressure contact will be hindered, so care must be taken sufficiently.

4 shows the braking device B _{2 according} to claim (2), in which a special grip 14 is used in place of pressing the braking plates 7, 7 of the braking device B which are being expanded by hand to reduce the expansion width. Is pressed down to disengage the wedge-shaped pressure contact between the rod 2 and the braking plate 7 to freely move the rod 2 laterally, and when the pressing of the grip is stopped, the wedge-shaped pressure contact with the rod 2 is instantaneously acted. is there.

That is, at the center of the handgrip 14 whose top surface and peripheral wall are provided with non-slip irregularities, a shaft 15 is inserted up through the upper rail 8 of the receiving box 11 and can be raised and lowered through a spring 16, and a trapezoidal shape is formed at the bottom. Dent
17 is formed, and its slope contacts the braking plate 7. Therefore, it is convenient to press the pair of brake plates 7 with fingertips to disengage the wedge-shaped pressure contact between the hole 12 and the rod 2 because the same effect can be obtained only by pressing from above. When the grip 14 is released from the pressed state, the restoring force of the spring 16 and the rod 2
The grip 14 rises due to the restoring force of the coil spring on the side, and it is prepared for the next pressure contact dissociation operation, so the function of a dust-proof braking device is achieved by the repeated finger-pressure drop operation (similar to normal push button operation). it can.

Next, in the braking device B ₃ of claim (3) according to the fifth illustration,
Instead of the coil spring 6 and the braking plate 7, a rectangular coil spring 18 is used as a cut surface, and both ends of the coil spring 18 are tilted forward in advance and then further advanced by one pitch to extend upward, Since the knob 19 is capped, the square edge 20 of the coil spring 18 having a rectangular shape is normally pressed against the rod 2 in a wedge shape and the rod 2
To stop the lateral movement of. If both the knobs 19 are pressed to separate the corner edge 20 from the rod 2, the rod 2 can be moved laterally, and the object of the present invention can be achieved in the same manner as other braking devices.

(Effect of the Invention) According to the present invention, by the simple additional member attached to the rod that comes in and out of the cylinder attached for opening and closing the window, the braking device for the movement of the rod disclosed in the prior art,
The braking effect is doubled, and the uniform pressure contact force acts on the rod from the relative direction. Therefore, even if the rod moves laterally (advancing or retracting), the braking effect can be reliably obtained. It is easy to switch with a one-touch pressure or push to move the rod laterally, and it is convenient to install it on the window side with a convenient function that can stop the movement of the rod if you release your hand. There is no aesthetic problem, and it is highly practical as an arbitrary stopping device for a rotating window.

[Brief description of drawings]

FIG. 1 is a schematic perspective front view in which the braking device according to the present invention is attached to an opening / closing arm rod composed of a tubular body and a rod in a rotating window, and FIG. 2 is a view in which a main braking device is connected to the tubular body. 3 is a plan view of the same as above, FIG. 4 is a partially cutaway central cutaway view when another member (grip) is added to the braking device of FIG. FIG. 5 is a central sectional view when a coil spring having a rectangular cross section is used as a braking device, and FIG. 6 is an explanatory view showing the braking force direction of the present invention. In the figure, 1 is a cylindrical body, 2 is a rod, 6 is a coil spring, 7 is a braking plate, 8 is an upper rail, 11 is a box, 14 is a grip, 17 is a dent, 18
Is a coil spring. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (3)

[Scope of utility model registration request] Claim: What is claimed is: 1. A coil which is inserted into and pulled out from a cylindrical body pivotally supported by a bracket fixed to a lower frame of a window opening frame is loosely fitted through a coil spring, and expansion is suppressed in the lower part and expanded in the upper part. A braking device for a window opening / closing arm rod, characterized in that a pair of braking plates tilting in a V-shape and another receiving member for internally inserting the braking plates into the rod are connected to the end of the cylindrical body. 2. A braking device for a window opening / closing arm rod according to claim 1, wherein a grip having a trapezoidal recess is slidably inserted into an upper crosspiece of a receiving space via a spring. 3. A braking device according to claim 1, wherein instead of a combination of a coil spring and a braking plate, both sides of a coil spring having a rectangular cross section are inclined so that the corners of the coil spring are pressed against each other, and the upper part of the receiving space is further raised. Braking device for a window opening / closing arm rod in which a specially shaped rectangular spring with a knob attached to the end extended to the outside is fitted on the rod inside the receiving space.