JPH0448440Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a damper operating device for adjusting the volume of air conditioned air.

(Prior Art) As shown in FIG. 4, a register R serving as an air outlet for air conditioning is built into an appropriate position of an instrument panel P of an automobile. This register R
A damper that can adjust the volume of air conditioned air is housed inside, and this damper can be operated with an operation knob. When operating this operating knob, it is necessary to have a certain operating load in terms of operating feeling. Conventionally, the following two methods are known as methods for applying an operating load.

5 and 6, a gear 31 is formed in a certain range of the outer circumference of the operation knob 30, and this gear 3
1 is in contact with one end of a leaf spring 32.
That is, this device obtains the operating load by using the deflection pressure of the leaf spring 32 as the operating knob 30 rotates.

On the other hand, the ones in FIGS. 7 and 8 also have the operation knob 3.
A gear 34 is formed in a part of 3. Further, a damper operating member 36 fitted onto a rotary shaft 35 of the damper is provided adjacent to the operating knob 33, and has an outer gear 37 that meshes with a gear 34 of the operating knob 33. In this type, the leaf spring 38 is brought into contact with the inner gear 39 of the damper operating member 36, and as in the above type, the bending pressure of the leaf spring 38 is used to obtain the operating load.

(Problems to be solved by the invention) However, both of the above types have the following problems.

When the resistor is exposed to a high temperature environment, there is a problem in that the operating load changes thereafter. That is, in either type, the mounting pieces 40, 41 (resin parts) to which the leaf springs 32, 38 are attached are thermally deformed. In this case, the deformation direction is a direction away from the operation knob 30 or the damper operation member 36 due to the spring force of the leaf springs 32 and 38. As a result, the operating load becomes lower than the initial setting value.

In addition, since the leaf springs 32 and 38 are arranged outside the operating knob 30 or the damper operating member 36 in both types, it is necessary to secure the mounting space in advance, which is preferable because the installation space is expanded in the plane direction. do not have.

Furthermore, the devices shown in FIGS. 7 and 8 have a problem in that the load varies depending on the direction in which the operating knob 33 is operated. As shown in FIG. 8, when the damper operating member 36 rotates in the direction of arrow B, it is easily bent (operation is easy), and when it rotates in the direction of arrow A, it is difficult to bend.

An object of the present invention is to provide a register damper operating device that can eliminate these problems.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides an operating knob for opening and closing the damper housed in the air conditioning register, which is provided at the center of rotation of the damper. The sleeve is rotatably supported around the sleeve, and a spring is wound around the sleeve on one side of the knob to press the knob into contact with a fixing member disposed on the opposite side of the knob with a predetermined pressing force. I decided to wear it.

(Function) Therefore, when the operating knob is operated in the above configuration, the knob rotates around the sleeve. In this case, since the knob is pressed against the fixed member by the force of the spring, it receives the frictional force generated during rotation. This frictional force is felt by the user as an operating load on the knob.

(Example) Hereinafter, an example embodying the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a cross-sectional view of the register of this example, which is installed in a proper position in an instrument panel P of an automobile. The register main body 1 is formed in a box shape with openings in the front and back, and a barrel 2 formed in a lattice shape is fixed to the opening on the indoor side.
Furthermore, a damper 3 for opening and closing the inside of the register main body 1 is provided on the back side thereof. This damper 3 has pin shafts 4 and 5 protruding upward and downward, and these are attached to the main body 1.
It is supported so that it can be inserted into and rotated around pin shafts 4 and 5. A link 7 connected to a damper operating knob 6 is connected to the lower pin shaft 5, and the damper 3 can be opened and closed by operating the operating knob 6.

Next, the vicinity of the operation knob 6 will be explained.

The damper operation knob 6 is an operation part 6 having a fan-shaped outer shape.
a, a part of which opens over a predetermined range at the lower front of the register main body 1.
It has become very easy to operate. Further, a connecting portion 6c extends from the base 6b of the knob 6, and a pin 9 for connecting with the link 7 is integrally formed upward at the tip of the connecting portion 6c.

The center portion of the base portion 6b of the knob 6 bulges upward into a disk shape to form a mounting portion 6d. From above, enter the lower flange 1 of the holder 10 (fixing member).
0a is inserted. This holder 10 has
A through hole 12 is formed to align with the through hole 11 formed through the mounting portion 6d of the knob 6, and a metal sleeve 1 is provided for both the through holes 11 and 12.
3 is inserted. After insertion, the upper end of the sleeve 13 is caulked against the holder 10 to prevent it from coming off downward. The lower end of the sleeve 13 is also caulked to form an overhanging edge 14. Further, on the lower surface side of the knob 6, a spring 15 is wound around the sleeve 13 and is prevented from coming off by the overhanging edge 14. This spring 15 acts in the direction of pressing the mounting portion 6d of the knob 6 toward the holder 10 side.

On the other hand, a positioning rib 16 is integrally provided vertically on a part of the lower surface of the register main body 1. The positioning rib 16 is a shaft portion 1 that can be inserted into the sleeve 13.
It has 7. A pair of anti-rotation pieces 18 protrude from the upper end of this shaft portion 17 in the left-right direction, and each of the anti-rotation pieces 18 extends from the upper flange 10 of the holder 10.
It engages with both notch grooves 19 of b. Note that a boss 20 projects from the lower end of the positioning rib 16, into which a chrysanthemum washer 21 is fitted.

This example was formed as described above. Therefore, according to this example, when the operating knob 6 is operated, the knob 6 rotates around the sleeve 13, and the damper 3 can be opened and closed via the link 7. In this case, since the knob 6 is pressed against the holder 10 side by the spring 15, when the knob 6 is rotated, the frictional force caused by these rubbing against each other causes
A constant operating load can be obtained regardless of the operating direction of the knob 6. As mentioned above, in the conventional type, an operating load is applied each time the leaf spring overcomes the gear. For this reason, while the operation felt like an intermittent one, this example does not have this, and the operation feels smooth. Furthermore, even in a high-temperature environment, there is no change in the spring force of the spring 15 against the knob 6, so the operating load does not change. Furthermore, since the spring 15 is provided on the lower surface of the knob 6, the installation space for the spring 15 is prevented from expanding in the plane direction.

In addition, the following effects are also exhibited in this example. knob 6
is assembled into the register main body 1 side by assembling and integrating the holder 10, spring 15, and sleeve 13, but in this example, the operating load of the knob 6 can be set before this assembly. . In other words, it is possible to confirm whether a suitable operating load is obtained before final assembly.

In this example, the knob 6 is arranged at the bottom of the register main body 1, but it can also be arranged at the side if the direction of assembly is changed together with the peripheral devices.

(Effect of idea) The effects of the present invention are as follows.

The operating load of the knob does not change due to thermal deformation, etc., and is maintained at the set load at the time of assembly.

Since the spring is placed inside the knob, the space for placing the spring does not expand in the plane direction.

A constant operating load can be obtained regardless of the direction in which the knob is operated.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the device of this example, FIG. 2 is a sectional view of the entire register, and FIG. 3 is an exploded perspective view of the device of this example.
4 is a perspective view showing the assembled state of the register, FIG. 5 is a cross-sectional view of the conventional device, FIG. 6 is a perspective view showing the main parts thereof, FIG. 7 is a cross-sectional view of the conventional device, and FIG.
The figure is a perspective view showing the main parts. 1...Register body, 3...Damper, 6...Operation knob, 10...Holder, 13...Sleeve,
15...Spring.

Claims (1)

[Scope of utility model registration request] An operation knob for opening and closing a damper housed in an air conditioning register is rotatably supported around a sleeve provided at its rotation center, and on one side of the knob, the sleeve includes: A register damper operating device comprising a spring wrapped around a knob that presses the knob with a predetermined pressing force against a fixed member disposed on the opposite side of the knob.