JP2506976Y2 - Openness adjuster - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening amount adjuster which can be applied to windows, doors and the like to adjust the opening amount steplessly.

[0002]

2. Description of the Related Art An opening amount adjuster capable of stepless adjustment of the opening amount is known from Japanese Patent Laid-Open No. 3-286078. There, one end of the adjusting rod is connected to the window, and the adjusting rod is slidably guided and supported by a guide frame that is horizontally rotatably supported by the window frame, and a locking member is provided between the guide frame and the adjusting rod. ing. The lock member is composed of a long rack body mounted on the adjustment rod side, a spur gear-shaped lock body that meshes with the rack body, and a spring that biases the lock body toward the rack body. , By pushing the operation button integrated with the lock body against the spring, the locked state is released and the window can be freely opened and closed.

[0003]

[Problems to be Solved by the Invention]
Window opening can be adjusted very simply by pushing the operation button. However, since the button operation at the time of unlocking is too simple, a malfunction is likely to occur. For example, the locked state is released when a part of the body is put on the operation button or a luggage is placed on the operation button. If this is left without being noticed, there is a risk that the window will be exposed to a gust of wind and collide with the window frame or outer wall.

Since the rack body having the rack teeth and the spur gear-shaped lock body are used as the engagement elements, the engagement teeth of the lock body are received by the lower surface of the engagement teeth of the rack body during the opening adjustment. The engaging teeth may not mesh with each other. Moreover,
Since this state change only appears as a change in the vertical height of the operation button in appearance, it is easily overlooked and may be left as it is. Even in this case, there is a risk that the window will be hit by a gust of wind.

The object of the present invention is to make it possible to easily adjust the opening amount while eliminating erroneous operation of the lock member due to carelessness, etc., and to make stepless adjustment capable of satisfying both operability and safety at the same time. To get the vessel. Another object of the present invention is to obtain an opening amount adjuster capable of clearly discriminating the operation state of the lock member at a glance and avoiding operation mistakes as much as possible.

[0006]

According to the present invention, a guide frame 5 is swingably supported by a window frame 2 via a shaft 14, one end of which is connected to the window 1, and a middle portion of the guide frame 5 is a guide frame 5. In an opening amount adjuster including a hollow adjusting rod 3 which is slidably moved and guided, and a lock mechanism provided between the guide frame 5 and the adjusting rod 3, the lock mechanism is fixed to the adjusting rod 3. The screw shaft 8 and a lock position where the screw shaft 8 is externally fitted and engaged,
A lock body 9 supported inside the guide frame 5 so as to reciprocate between an unlock position separated from the screw shaft 8, a spring 17 for biasing the lock body 9 toward the screw shaft 8, and a spring 17. The operating mechanism includes an operating mechanism for unlocking the lock body 9 against 17, and the operating mechanism includes a knob 19 rotatably supported on the outer surface of the guide frame 5 via an operating shaft 22.
The interlocking frame 16 is built in the guide frame 5 and has one end fixed to the lock body 9, and is provided between the interlocking frame 16 and the knob 19 so that the knob 19 rotates to reciprocate. it and a cam mechanism 20 for converting the cam mechanism 2
0 is the passive ball 24 held by the guide frame 5 and the passive ball
The cam surface 2 for pushing the ruler 24 against the spring 17
5 and the cam surface is formed on the joint surface of the knob 19 with the guide frame 5.
25 is formed , the knob in the unlocked state
Knob so that part of 19 projects outside the outline of the guide frame 5.
The requirement is that the outer shape of 19 has been set .

Specifically, the guide frame 5 has a pair of front and rear passive elements.
Guy of the knob 19 that supports the balls 24 and 24 freely retractable.
On the joint surface with the drive frame 5, in the locked state, the passive ball
A pair of recesses 25 a for receiving 24 are formed. Therefore,
Twist the knob 19 around the operation shaft 22 by a predetermined angle.
By operating, the passive ball 24 is moved to the lower end of the knob 19.
Push inwardly of the guide frame 5 against the spring 17 at the surface 25b
To be able to operate only. Guide frame 5 and knob 19
Each is formed in the same cross-section with an oval shape and locked
In the above, the peripheral side surface of the knob 19 and the peripheral side surface of the guide frame 5 are stepped.
Continue without any difference.

[0008]

In operation, the lock body 9 is urged to move by the spring 17 and engages with the screw shaft 8 to prevent the adjusting rod 3 from sliding. As described above, in the lock mechanism using the screw shaft 8 as the engagement element, the opening amount of the window 2 can be adjusted steplessly.

When unlocking the lock body 9,
The knob 19 provided on the outer surface of the guide frame 5 is rotated around the operation shaft 22 to move the lock body 9 against the spring 17 via the cam mechanism 20 and the interlocking frame 16 to the unlock position. In this manner, in the mode in which the lock body 9 is switched to the unlocked state by rotating the knob 19 by a predetermined angle, the operating shaft 22 is attached to the knob 19 although the switching between the locked state and the unlocked state can be performed with one touch. Unless an external force in the direction of an arc centered at is applied, that is, unless the knob 19 is operated with a clear intention, the lock body 9 does not unexpectedly switch to the unlocked state.

In the unlocked state, if a part of the knob 19 is projected to the outside of the outline of the guide frame 5, the switching state of the lock mechanism can be discriminated at a glance. Therefore, the user should be careful when opening the window 2. It is possible to well prevent the adjustment rod 3 from being left in a state of being freely slidable.

[0011]

According to this invention, the lock body 9 can be switched between the locked state and the unlocked state by rotating the knob 19 provided on the outer surface of the guide frame 5. Therefore,
Although the state of the lock mechanism can be switched by one touch like the conventional opening degree adjuster, it is possible to reliably prevent the knob 19 from being accidentally switched. This allows
For example, even if a part of the body is hung on the knob 19 or a luggage is placed on the knob 19, it is possible to prevent the lock mechanism from being switched to the unlocked state, and the window 2 is unexpectedly opened. It is possible to eliminate a dangerous situation such as being hit or hitting the window frame 1 by a gust of wind and improving safety without impairing operability.

In the unlocked state, the operating mechanism for projecting a part of the knob 19 to the outside of the outline of the guide frame 5 makes it possible to clearly discriminate the switching state of the locking mechanism from the posture of the knob 19, so that the user can operate. Therefore, it is possible to prevent the operation error from occurring by calling the attention of the above, and it is possible to prevent the adjustment rod 3 from being left in a state where it can slide freely.

[0013]

(Embodiment 1) FIGS. 1 to 6 show an embodiment in which the present invention is applied to an opening controller for windows. In FIG. 3, reference numeral 2 is a window frame and 1 is a window. The opening amount adjuster is configured as a push rod type in which the opening amount of the window 1 is adjusted by one adjusting rod 3. Specifically, a guide frame 5 rotatably supported on the window frame 2 via a bracket 4
And one end of which is connected to the window 1 through the bracket 6, and an intermediate portion of which is slidably supported by the guide frame 5, and a locking mechanism provided between the guide frame 5 and the adjusting rod 3. Etc.

In order to fix the window 1 steplessly at any open position, the lock mechanism is composed of a screw shaft 8 and a lock body 9 which is externally fitted and engaged with the screw shaft 8 as engaging elements. As shown in FIG. 5, the screw shaft 8 is formed by cutting an existing screw shaft into a predetermined length, and is integrated with the adjusting rod 3. The adjusting rod 3 is made of a material having a C-shaped cross section that opens downward, the screw shaft 8 is arranged on the inner top surface of the adjusting rod 3, and both ends of the screw shaft 8 are fixed.

In FIG. 4, the guide frame 5 is formed by a frame body 10 made of a metal block having an oval cross section, and a lid body 11 that closes the lower surface opening. A chamber 12 is provided inside the frame body 10 and opens on the lower surface and both left and right side surfaces. A guide bush 13 is fitted into the left and right openings from the chamber 12 side.
These left and right guide bushes 13 slidably guide and support the adjusting rod 3 which crosses the chamber 12 left and right. A shaft 14 is provided at the center of the lower surface of the lid body 11, and the shaft 14 is rotatably supported by the bracket 4. As a result, when the adjusting rod 3 slides along with the window 1, the entire guide frame 5 can rotate with respect to the window frame 1.

The lock body 9 is made of a metal block having a T-shaped longitudinal section, and has a thread 15 which meshes with the screw shaft 8 on the concave arc surface of the upper surface thereof. The lock body 9 is arranged in the chamber 12 in a state of being located below the screw shaft 8, and the lower end thereof is projected from the lower surface opening of the adjusting rod 3 and fixed to the interlocking frame 16. The interlocking frame 16 is formed in a rectangular frame shape surrounding the adjustment rod 3 in the chamber 12, and includes the left and right guide bushes 13 and the chamber 1.
It is possible to move up and down in the chamber 12 by being guided by the front and rear peripheral walls of 2. As a result, the lock body 9 can move up and down between the lock position where it engages with the screw shaft 8 and the unlock position where it separates from the screw shaft 8. A compression coil type spring 17 is arranged between the interlocking frame 16 and the lid 11 in order to bias the lock body 9 toward the screw shaft 8.

In order to operate the lock body 9 against the spring 17 to switch to the unlocked state, a knob 19 is provided on the upper part of the guide frame 5, and a cam mechanism 20 is provided between the knob 19 and the interlocking frame 16. Set up. The knob 19 is formed in the same oval cross section as the guide frame 5, and is horizontally rotatably supported by an operation shaft 22 via a cam plate 21 fixed to the inner surface thereof with screws. In the locked state, the knob 19 is within the outline of the guide frame 5 as shown in FIG. 2, and the peripheral wall surfaces of both 5 and 19 are continuous without any step. The operation shaft 22 is fixed to the center of the upper wall of the chamber 12 of the guide frame 5.

In FIG. 6, the cam mechanism 20 comprises a pair of passive balls 24 held by a pair of front and rear holes 23 provided in the upper wall of the chamber 12, and a pair of front and rear cam surfaces provided on the lower surface of the cam plate 21. 25 and. As mentioned earlier, the knob 19
The cam plate 21 is integrated with the guide frame 5 via the operation shaft 22, and the three members 19, 21.5 are adjacent to each other via a flat surface. Therefore, recesses 25a into which the passive balls 24 are inserted are provided at two front and rear positions on the lower surface of the cam plate 21, and the knob 1
When the screw 9 is twisted in the clockwise direction from the locked state, the passive ball 24 is pushed down by the recess 25a and the lower end surface 25b of the cam plate 21. That is, the lower end surface 25 circumscribing the recess 25a and the passive ball 24
The cam surface 25 is formed by b.

In order to prevent the knob 19 from being rotated more than necessary, the pin 27 is fixed to the lower surface of the cam plate 21,
A regulation groove 28 is provided on the upper end surface of the guide frame 5. Knob 1
9 can be rotated only within the forming range of the restriction groove 28 (60 degrees in the circumferential direction), and in the unlocked state, FIG.
The front and rear ends thereof project outside the outline of the guide frame 5, as shown in FIG. In order to stably hold the unlocked state, a shallow positioning recess 29 into which the passive ball 24 falls is provided in the cam plate 21 in addition to the recess 25a described above.

In order to regulate the opening limit of the window 2, a stopper 3 having a lock 30 built therein is provided in addition to the lock mechanism described above.
1 is provided on the lower surface free end side of the adjusting rod 3. As shown in FIG. 5, the stopper 31 has a case 32 and a slide plate 33 that vertically sandwich the inner bottom wall of the adjusting rod 3, and these can be slid with respect to the adjusting rod 3 by integrating them with screws. To be installed. The case 32 accommodates the lock 30, a cam 35 fixed to the inner cylinder shaft 34 of the lock 30, a lock piece 36 that is vertically operated by the cam 35, and the like. The lock piece 36 is formed by diverting the lock body 9 described above and fixing the spring receiving plate 37 to the lower end thereof. Spring receiving plate 37 and slide plate 3
A compression coil type spring 38 for pushing down and biasing the lock piece 36 is arranged between the spring 38 and the spring 3.

For the stopper 31, a key (not shown) is inserted into the lock 30, and the cam 35 is tilted sideways from the lock position (state shown by the solid line in FIG. 5), whereby the adjusting rod 3 is moved.
When the cam 35 is returned to its original state and the lock body 9 is engaged with the screw shaft 8, the protrusion limit of the adjusting rod 3 can be regulated.

The opening controller having the above construction is shown in FIG.
As shown in FIG. 5, the knob 19 is rotated to release the locked state, the window 2 is opened to an arbitrary position, and then the knob 19 is returned to its original position to engage the lock body 9 with the screw shaft 8. The sliding movement of the adjusting rod 3 is prevented. In the locked state,
The knob 19 is inside the outline of the guide frame 5, and its peripheral wall surface is continuous with the peripheral wall surface of the guide frame 5. Therefore, the knob 19
The knob 19 will not switch to the unlocked state even if a luggage is placed on it or if a part of the body leans against the peripheral surface of the knob 19. On the other hand, in the unlocked state, the front and rear ends of the knob 19 project to the outside of the outline of the guide frame 5, so it is possible to clearly determine at a glance that the lock mechanism is inactive from the posture of the knob 19. It is possible to prevent the knob 19 from being left in that state.

(Embodiment 2) The above embodiment can be modified as shown in FIG.
The adjusting rod 3 is formed of a tubular material that is opened laterally, and the knob 19 is arranged on the front side of the guide frame 5. The lock mechanism, the cam mechanism 20, and the like correct the sizes and shapes of the respective components in the first embodiment according to the shapes of the guide frame 5 and the adjusting rod 3, but there is no difference in the basic structure.

(Other Embodiments) Regarding the provision of the stopper 31 provided with the lock 30, the key hole can be opened on the upper surface as shown in FIG. In this case, a frame body equivalent to the interlocking frame 16 in the first embodiment is arranged in the case 32, and the lock body 9 is attached to the frame body.
To secure the lock piece. Further, an inclined groove is provided in the frame body, and an arm engaging with this groove is fixed to the inner cylinder shaft of the lock 30 so that the pivotal movement of the key is converted into a vertical movement through the inclined groove.

The cams surface 25 may be formed under surface of the knob 19 as rib-like protrusions. Knob 19 need not be non-circular. For example, as shown in FIG. 9, when the knob 19 is formed in a circular shape in a plan view and a position eccentric from the center thereof is supported by the operation shaft 22, a part of the knob 19 is in the unlocked state, and a part of the guide frame 5 is surrounded by an outline line. Can be projected outside. The knob 19 can self-return to the unlocked state at the same time when the knob 19 is released by forming the cam surface 25 with a series of inclined surfaces or by incorporating a dedicated return spring around the operating shaft 22. Can be configured as. The screw shaft 8 can be applied only by having a continuous thread on a part of the peripheral surface of the shaft. Further, it is possible to form the shaft body in which the crests and the troughs corresponding to the screw threads are alternately formed continuously at a constant pitch in a multi-step form.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an outline of a lock mechanism,
It shows the locked state.

FIG. 2 is a perspective view of an opening amount adjuster.

FIG. 3 is a plan view showing a usage state of the opening degree adjuster.

FIG. 4 shows the locking mechanism in an unlocked state, FIG. 4 (A) is a longitudinal sectional view, and FIG. 4 (B) is an external perspective view.

5 is a cross-sectional view taken along the line AA in FIG.

FIG. 6 is an exploded perspective view showing a cam mechanism.

FIG. 7 is a perspective view of an opening amount adjuster according to a second embodiment.

FIG. 8 is a perspective view showing a modification of the stopper.

FIG. 9 is a perspective view showing a modification of the knob.

[Explanation of symbols]

 1 Window 2 Window Frame 5 Guide Frame 8 Screw Shaft 9 Lock Body 14 Shaft 17 Spring 19 Knob 20 Cam Mechanism 22 Operation Axis

Claims (3)

(57) [Scope of utility model registration request] And 1. A guide frame 5 is pivotally supported through a shaft 14 to the window frame 2, one end connected to the window 1, a hollow in which the intermediate portion is slidably moved and guided by the guide frame 5 An opening amount adjuster comprising an adjusting rod 3 and a lock mechanism provided between the guide frame 5 and the adjusting rod 3, wherein the lock mechanism is a screw fixed to the adjusting rod 3. A lock body 9, which is reciprocally supported in the guide frame 5 between the shaft 8, a lock position where the screw shaft 8 is externally fitted and engaged, and an unlock position where the shaft 8 is separated from the screw shaft 8, and a lock body 9. Includes a spring 17 for urging the lock body 9 toward the screw shaft 8 and an operation mechanism for unlocking the lock body 9 against the spring 17, and the operation mechanism is provided on the outer surface of the guide frame 5. A knob 19 rotatably supported via 22 and a built-in guide frame 5, one end of which is a lock body 9. A motion frame 16 that is constant, is provided between the motion frame 16 and knob 19, a cam mechanism 20 for converting the rotational motion of the knob 19 to the reciprocating operation of the lock member 9
Look including the door, the cam mechanism 20 is retractable held by the guide frame 5 Passive
Push the ball 24 and the passive ball 24 against the spring 17.
The cam surface 25 that is operated for insertion is used to guide the knob 19.
A cam surface 25 is formed on the joint surface with the frame 5, and part of the knob 19 of the guide frame 5 is in the unlocked state.
An opening amount adjuster in which the outer shape of the knob 19 is set so as to protrude outside the contour line . 2. A pair of front and rear passive balls 24 on the guide frame 5.
24 is supported so that it can be retracted and retracted, and the knob 19 is in a locked state on the joint surface with the guide frame 5.
And a pair of recesses 25a for receiving the passive balls 24 are formed.
The knob 19 is twisted around the operation shaft 22 by a predetermined angle.
By operating, the passive ball 24 is moved to the lower end of the knob 19.
Push inwardly of the guide frame 5 against the spring 17 at the surface 25b
The opening controller according to claim 1, which can be operated only by itself. 3. The guide frame 5 and the knob 19 respectively.
Are formed in the same sectional shape of an ellipse, and in the locked state, the peripheral side surface of the knob 19 is the guide frame 5.
Opening amount regulator according to claim 1 or 2, wherein contiguous circumferential side and stepless.