JPH0537165Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to an air conditioning register for a vehicle, and in particular, the invention relates to an air conditioning register for a vehicle, and in particular, a barrel assembled into a barrel storage chamber of a retainer is centered around a support shaft protruding from the end surface of the barrel. This relates to a type of register that changes the wind direction by rotating.

[Prior Art] Conventionally, as shown in FIGS. 4 and 5, the center line of the support shaft 6' of the barrel 3', which is assembled into the barrel storage chamber of the retainer 1', is A stopper arm 15' is protruded in a direction perpendicular to the retainer 1', and a pair of stopper pins 16' are protruded from the end face of the retainer 1' to cooperate with the stopper arm 15' to limit the rotation angle of the barrel 3'. There is.

In addition, in the above conventional one, the retainer 1'
On the other hand, in order to apply a sticky operating load to the barrel 3' when rotating the barrel 3' around the support shaft 6', as shown in FIG. It is conceivable to assemble the barrel 3' to the retainer 1' by fitting a bearing body 7' made of rubber, for example, an elastomer, onto the support shaft 6' of the barrel 3'.

[Problems to be solved by the invention] By the way, in the case where the stopper arm 15' is integrally formed on the end face of the support shaft 6' of the barrel 3',
It is not possible to insert and assemble the bearing body 7' from the shaft end surface of the support shaft 6'. For this reason, the bearing body 7' is formed with a fitting opening 8a' that opens the bearing hole 8' by a predetermined amount on the outer surface of the bearing body 7'. It becomes necessary to fit the support shaft 6' from the outer circumferential side while expanding the support shaft 6' elastically.
Therefore, the work of assembling the bearing body 7' to the support shaft 6' becomes troublesome. Moreover, the fitting hole 8 is in the bearing body 7'.
Due to the structure in which a' is opened and the bearing body 7' is elastically expanded at the insertion opening 8a', friction occurs between the axis of the support shaft 6' and the bearing hole 8' of the bearing body 7'. It becomes difficult to maintain the force at the desired frictional force. That is, when the bearing body 7' is expanded when the barrel 3' is rotated about the support shaft 6',
The sliding friction force generated between the support shaft 6' and the bearing body 7' is insufficient, and the operating load on the barrel 3' is reduced. Then, the barrel 3' cannot be rotated smoothly under a predetermined operating load (a sticky operating load).

In view of the above-mentioned conventional problems, the purpose of this invention is to maintain the frictional force between the outer peripheral surface of the spindle of the barrel and the bearing hole of the bearing body at a predetermined value without complicating the structure. An object of the present invention is to provide a resistor that can stably and smoothly rotate a barrel under a predetermined operating load.

[Means for Solving the Problems] In order to achieve the above object, this invention rotates the barrel assembled in the barrel storage chamber of the retainer around a support shaft protruding from the end surface of the barrel. In the register for changing the wind direction, a bearing body having a circular bearing hole that is inserted into the support shaft from the shaft end surface of the support shaft is fitted into the retainer,
A stopper pin is protruded from the end face of the barrel at a predetermined distance from the support shaft, and the stopper pin is movably fitted into the retainer and cooperates with the stopper pin to rotate the barrel. It has a configuration in which a regulation hole is formed to limit the rotation angle.

[Operation] In the register configured as described above,
By limiting the rotation angle of the barrel using the stopper pin on the barrel end surface and the regulating hole in the retainer without providing a stopper arm on the end surface of the shaft of the barrel, a bearing body with a circular bearing hole can be inserted from the end surface of the barrel shaft. Can be fitted. Therefore, the frictional force between the outer circumferential surface of the support shaft and the bearing hole of the bearing body can always be maintained at a predetermined value.

[Example] An example of this invention will be described below with reference to FIGS. 1 to 3.

The retainer 1 is formed into a rectangular cylinder shape with both front and rear ends open, and has a ventilation passage inside the cylinder, and a barrel storage chamber 2 is formed on the front side (downstream side) of the ventilation passage.

A predetermined number of bleeds 4 are provided between both end plates 5 of the barrel 3 assembled in the barrel storage chamber 2 of the retainer 1.
are arranged in parallel at predetermined intervals, and both end plates 5
Support shafts 6 having a circular cross section and forming the center of rotation of the barrel 3 are coaxially protruded from the outer surfaces of the barrels 3 and 3, respectively.
A square bearing body 7 is fitted into each support shaft 6 of the barrel 3, with a circular bearing hole 8 inserted into the shaft end face extending through the center thereof. The bearing body 7 is made of a flexible and elastic synthetic resin, rubber, etc., for example, an elastomer, and provides a predetermined frictional force to the fitting portion between the bearing hole 8 and the outer peripheral surface of the support shaft 6 of the barrel 3. Thus, the bore diameter of the bearing hole 8 is formed to be approximately the same diameter as the outer diameter of the support shaft 6 or slightly smaller. Furthermore, retaining grooves 7a are formed on both upper and lower end surfaces of the bearing body 7, and each of these retaining grooves 7a
are fitted into both the upper and lower edges of the notch-shaped fitting portion 9 formed on the front side of both end plates 1a of the retainer 1, and the bearing body 7 is fitted, thereby causing the bearing body 7 to move in the axial direction. It is designed to prevent movement.

A stopper pin 10 is provided protruding from the outer surface of one end plate 5 of the barrel 3 at a predetermined distance from the support shaft 6 thereof. This stopper pin 10 is movably inserted into a regulating hole 11 of the retainer 1, and comes into contact with both ends of the regulating hole 11 to limit the rotation angle of the barrel 3. That is, the regulation hole 11 is located in both end plates 1a of the retainer 1.
It is formed on the end plate 1a on the right side in FIG. 1, and communicates with the fitting portion 9 via a communication hole 12. Further, the regulating hole 8 is formed in an arc shape concentric with the center of rotation of the barrel 3 and into which the stopper pin 10 is movably inserted.

A bezel 13 formed in the shape of a rectangular frame is integrally assembled with the retainer 1 at both ends of both end plates 1a of the retainer 1 by engagement means of a locking claw and a locking groove (not shown). This prevents the bearing body 7 from coming off in the forward direction.

Note that one support shaft 6 of the barrel 3 is connected to a manual operation member (not shown) via an interlocking mechanism, and the barrel 3 is rotated together with the support shaft 6 by operating the manual operation member. It's becoming like that.

This embodiment is constructed as described above. Therefore, the rotation angle of the barrel 3 is limited by the stopper pin 10 of the barrel 3 and the regulating hole 11 of the retainer 1 without providing a stopper arm at the shaft end of the support shaft 6 of the barrel 3. A bearing body 7 having a circular bearing hole 8 without a groove can be inserted into the shaft end surface of the shaft 6. By this,
The frictional force generated at the fitting portion between the outer circumferential surface of the support shaft 6 and the bearing hole 8 of the bearing body 7 can always be maintained at a predetermined value, and the barrel 3 can be held against the retainer 1 by the support shaft 6.
It is possible to perform a smooth rotation operation with a predetermined rotation operation force around . As a result, defective rotation of the barrel 3 caused by insufficient frictional force between the bearing body 7 and the support shaft 6 can be actively prevented.

As shown in FIG. 3, one side of the arcuate surface of the regulating hole 11 formed in the end plate 1a of the retainer 1 is formed into an elastically deformable substantially corrugated surface 11a, so that the rotation operation of the barrel 3 is controlled. It may be configured to give a feeling.

[Effects of the invention] As described above, according to this invention, there is no need to provide a stopper arm on the end surface of the shaft of the barrel.
By restricting the rotation angle of the barrel by the stopper pin on the barrel end surface and the regulating hole of the retainer, a bearing body having a circular bearing hole can be fitted from the shaft end surface of the barrel. Therefore, the frictional force between the outer peripheral surface of the support shaft and the bearing hole of the bearing body can always be maintained at a predetermined value without increasing the number of parts and complicating the structure. As a result, the barrel can be rotated stably and smoothly under a predetermined operating load, and malfunctions in barrel rotation caused by the lack of frictional force can be actively prevented. .

[Brief explanation of the drawing]

Figures 1 to 3 of the drawings show an embodiment of this invention, in which Figure 1 is an exploded perspective view of the register, Figure 2 is an enlarged side view of the main parts, and Figure 3 is an exploded perspective view of the register.
The figure is a side view showing another embodiment. Fig. 4 is a perspective view showing the conventional one, Fig. 5 is also a plan view,
FIG. 6 is a perspective view showing a conventional support shaft with a stopper arm and a bearing body. 1...Retainer, 2...Barrel storage chamber, 3...
Barrel, 6... Support shaft, 7... Bearing body, 8... Bearing hole, 10... Stopper pin, 11... Regulating hole.

Claims (1)

[Claims for Utility Model Registration] In a register that changes the wind direction by rotating a barrel assembled in a barrel storage chamber of a retainer around a support shaft protruding from an end face thereof, the retainer includes: A bearing body having a circular bearing hole is fitted into the shaft end face of the support shaft, and a stopper pin is protruded from the end face of the barrel at a predetermined distance from the support shaft. . The register, wherein the retainer is formed with a regulating hole into which the stopper pin is movably inserted and which cooperates with the stopper pin to limit the rotation angle of the barrel.