JP4021390B2 - Air-conditioning blow-out device molding equipment - Google Patents

Description

The present invention relates to a cylindrical housing formed by a primary molding of a synthetic resin and having a plurality of pairs of upper and lower shaft holes that are coaxially arranged on upper and lower inner walls facing each other, and a synthetic resin in the housing. And a plurality of movable blades each having a pair of upper and lower support shafts that are rotatably fitted in the upper and lower shaft holes, and the rotation axis of each upper and lower support shaft It is related with the shaping | molding apparatus of the blower outlet apparatus for an air conditioning which inclined in the front-back direction of the housing with respect to the said up-and-down inner wall.

Such a blow-out device for air conditioning and its molding device are already known as disclosed in Patent Document 1.
JP 7-149139 A

  In the air-conditioning outlet device disclosed in Patent Document 1, the end surface of one boss of the housing is orthogonal to the axis of the shaft hole and the support shaft, but the end surface of the other boss and the movable blade opposite thereto are arranged. Since the end surface is parallel to the inner wall of the housing and is inclined with respect to the rotation axis, when the movable blade rotates, the interference between the end surface of the other boss and the end surface of the movable blade facing the other boss. In order to avoid this, it is necessary to provide a sufficient gap between them, and the gap causes an axial backlash of the movable blade, which causes a decrease in durability.

The present invention has been made in view of the mentioned circumstances, and an object thereof is to provide a molding apparatus axial backlash high the air-conditioning air outlet device durable and eliminates the movable blade.

To achieve the above object, the present invention includes a tubular housing that will be molded by primary molding of a synthetic resin, is molded by the secondary molding of synthetic resin in the housing, at a mutual spacing The upper and lower shafts are composed of a plurality of movable blades that can rotate around a plurality of parallel rotation axes, and the upper and lower inner walls facing each other are aligned with each other on the respective rotation axes. And a plurality of sets of upper and lower bosses each having an upper surface and a lower shaft hole, each having an end surface perpendicular to each rotation axis, and each of the movable blades includes the upper and lower shafts. A pair of upper and lower support shafts that are rotatably fitted in the holes, and a pair of upper and lower shafts that are at the bases of the upper and lower support shafts and that abut on the respective end surfaces of the upper and lower bosses so as to be able to rotate and slide And a contact surface each, a molding apparatus for molding the air-conditioning air outlet device is inclined in the longitudinal direction of the housing the axis of rotation relative to the vertical inner wall, forming the primary of said housing The fixed mold and the first movable mold are configured to be openable and closable with respect to each other along the ventilation direction in the housing, and the first movable mold has a first boss of any one of the upper and lower bosses. 1 A mold surface for molding an end surface facing the movable mold side is provided, and a first slide mold for molding the shaft hole of the one boss is moved along the rotational axis to the first movable mold. A second slide mold that can be attached and that forms an axial hole of one of the upper and lower bosses and an end face facing the fixed mold side is formed on the first movable mold on the inner side of the housing. Mounted movably along the rotational axis Y, the primary After the form, the first, characterized in that the fixed mold and cooperates with the primary molded article attached thereto comprises a second movable mold for secondary molding to mold a plurality of movable blades.

The present invention, in addition to the first feature, the second slide die mounted on a sliding rod which is slidably supported in an oblique direction with respect to the closing direction to the first movable mold, the first movable The second feature is that when the mold is opened and closed, the second slide mold is moved along the rotation axis by sliding the sliding rod in the direction opposite to the opening and closing direction.

In the air-conditioning blowout device formed by the forming device according to the present invention, the upper and lower support shafts even if the rotation axes of the upper and lower support shafts of each movable blade are inclined with respect to the upper and lower inner walls of the housing. The end surfaces of the upper and lower bosses of the housing that support the rotor and the contact surfaces of the movable blades that are rotatably contacted thereto are perpendicular to the rotation axis, thereby hindering the rotation of the movable blades. Therefore, it is possible to eliminate the backlash in the axial direction of each movable blade and improve its durability. Furthermore, according to the first feature of the molding apparatus according to the present invention, the shafts of the movable blades are arranged even though the rotation axes of the upper and lower support shafts of the movable blades are inclined with respect to the upper and lower inner walls of the housing. There is no direction backlash, and an air-conditioning outlet device having excellent durability can be formed.

Furthermore, according to the second feature of the present invention, it is possible to easily release the second slide mold from the other boss of the housing after the primary molding.

  Embodiments of the present invention will be described based on preferred embodiments of the present invention shown in the accompanying drawings.

  1 is a partially exploded perspective view of an air-conditioning air outlet apparatus of the present invention, FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, FIG. 3 is a sectional view taken along line 3-3 of FIG. 2 is a sectional view taken along line 4-4 in FIG. 2, FIG. 5 is a longitudinal side view of the molding apparatus shown in the primary molding state of the air-conditioning air outlet apparatus of the present invention, and FIG. 6 is a sectional view taken along line 6-6 in FIG. 5 is a sectional view taken along line 7-7 in FIG. 5, FIG. 8 is a sectional view taken along line 8-8 in FIG. 5, FIG. 9 is a view corresponding to FIG. 5, showing the mold opening state of the molding apparatus, and FIG. FIG. 11 is a sectional view taken along line 11-11 of FIG. 10, FIG. 12 is a sectional view taken along line 12-12 of FIG. 10, and FIG. FIG. 11 is a view corresponding to FIG. 10 showing a mold opening state of the apparatus.

  First, the air-conditioning outlet apparatus 1 of the present invention will be described with reference to FIGS.

  The air-conditioning air outlet apparatus 1 includes a frame-shaped housing 2 having both front and rear surfaces opened, and horizontal fixed blades 3 and 3 which are formed integrally with the housing 2 and are arranged vertically at the air outlet on the front side. ... And a group of vertical movable blades 4, 4... Which are axially supported by the upper and lower inner walls 2 a and 2 b of the housing 2 and arranged in the left and right direction behind the fixed blades 3 and 3.

  The housing 2 and the fixed blades 3, 3... Are integrally formed by primary molding with a synthetic resin, and the movable blades 4, 4... Are molded by secondary molding with a synthetic resin having a melting point lower than that of the synthetic resin. Is.

  The housing 2 has support holes 5 that open to the outer surface on the left and right side walls. When the housing 2 is mounted, for example, on the mounting hole Pa of the instrument panel P of an automobile, A protruding horizontal support shaft (not shown) is fitted into the support hole 5, and the housing 2 swings up and down around the axis of the support hole 5. The guidance direction can be adjusted up and down. Both the upper and lower outer surfaces of the housing 2 are cylindrical surfaces centered on the axis of the support hole 5.

  In a normal posture in which the upper and lower inner side walls 2a, 2b and the fixed blades 3, 3,... Are horizontal, the housing 2 is inclined so that the front surface is slightly upward. The movable blades 4, 4... Are arranged such that the rotation axis Y is inclined rearward.

  A pair of support shafts 7 and 8 are integrally projected at the upper and lower ends extending along the rotational axis Y at the upper and lower ends of each movable blade 4, 4. The movable blades 4, 4... Are rotated around the rotation axis Y, so that the upper and lower bosses 9, 10b respectively projecting from the upper and lower inner walls 2a, 2b of the housing 2 are rotatably fitted in the shaft holes 9a, 10a. It can be rotated to.

  The upper and lower bosses 9, 10 are formed so that their end faces 9 b, 10 b are orthogonal to the rotational axis Y. Therefore, these bosses 9, 10 are formed on the upper and lower inner walls 2 a, 2 b of the housing 2 and each fixed blade 3. , 3...

  On the other hand, at the bases of the upper and lower support shafts 7 and 8 of the movable blades 4, 4... The axial backlash of each movable blade 4,4 ... is eliminated by being formed and contacting them.

  .. Are integrally formed on the lower surface of the rear end of each movable blade 4, 4..., And a single synchronous link 14 is connected to the connecting shaft 13, 13. All of the movable blades 4 are connected so as to be able to rotate synchronously. Further, a knob 15 is slidably engaged with one fixed blade 3, 3..., And an operating pin 15 a formed integrally with the rear end of the knob 15 cuts off the front end of one movable blade 4. The notch 16 is engaged between a forked portion 17 formed integrally with the movable blade 4 so as to sandwich the notch 16 from the left and right.

  Thus, when the knob 15 is slid left and right and the bifurcated portion 17 is swung left and right via the operating pin 15a, the movable blades 4, 4. Thus, the path of the air-conditioning air flowing into the housing 2 can be adjusted in the left-right direction.

  At this time, the front surface of the housing 2 faces upward, and the fixed blades 3, 3... Are arranged vertically along the front surface. Since the rotation axis Y is inclined backward, the path of the entire air whose path is adjusted by the movable blades 4, 4... The upper and lower inner side walls 2a, 2b and the fixed blades 3, 3,.

  Moreover, the rotational axis Y of each movable blade 4, 4... Is inclined with respect to the upper and lower inner walls 2 a and 2 b of the housing 2 and each fixed blade 3, 3. Since the end surfaces 9b, 10b of the bosses 9, 10 and the upper and lower contact surfaces 4a, 4b of the movable blades 4, 4 ... that are rotatably contacted thereto are orthogonal to the rotational axis Y, each movable blade 4 , 4... Is not hindered, and the axial backlash of the movable blades 4, 4.

  Further, the housing 2 and the fixed blades 3, 3... Are integrally formed, so that the number of parts can be reduced and the cost can be reduced.

  Next, the shaping | molding apparatus 20 of the said air-conditioning blower outlet apparatus 1 is demonstrated with reference to FIGS.

  The housing 2 having a group of fixed blades 3, 3... Is primarily molded. For the primary molding, as shown in FIGS. 5 to 9, a fixed mold 21, a first movable mold 22, A one-slide mold 23, a second slide mold 24, and a pair of side slide molds 25, 25 are used.

  As clearly shown in FIGS. 5 and 9, the first movable mold 22 opens and closes in the horizontal direction with respect to the fixed mold 21, and is in a closed state between the first movable mold 22 and the fixed mold 21. A cavity 36 corresponding to the shape of the housing 2 and the fixed blades 3, 3... Is defined.

  The first slide mold 23 is supported by the first movable mold 22 below the housing 2 so as to be slidable along the rotational axis Y, and a shaft portion 23 a corresponding to the shaft hole 10 a of the lower boss 10. Have

  The second slide mold 24 can move up and down along the rotation axis Y inside the housing 2 to mold the shaft hole 9 a and the end surface 9 b of the upper boss 9, and the guide hole 29 of the first movable mold 22. And is supported by the sliding rod 30. The guide hole 29 and the sliding rod 30 are arranged with a gradient descending toward the fixed mold 21 side, and when the first movable mold 22 is moved to the left and right, the sliding rod is moved in the opposite direction. By sliding 30, the second slide mold 24 can be moved up and down along the rotation axis Y.

  The fixed mold 21 is provided with a protrusion 32 for forming the notch 16 of the one movable blade 4, 4..., And the protrusion 32 is received in the recess 33 of the first movable mold 22. It has become.

  The pair of side slide dies 25, 25 are supported on both sides of the fixed die 21 so as to be slidable in the horizontal direction, and are involved in forming a part of the outer surface of the housing 2 and the support holes 5, 5 opening to the side. To do.

Thus, as shown in FIG. 5, the first movable mold 22, the side slide molds 25, 25 and the first and second slide molds 23, 24 are closed and the cavity 36 defined between them is formed. If the molten synthetic resin is injected from a gate (not shown), the housing 2 and the fixed blades 3, 3,. At this time, the end surface 9b and the shaft hole 9a of the upper boss 9 facing the fixed mold 21 are formed by the upper end surface 24b and the shaft portion 24a of the second slide mold 24 and the first movable mold of the lower boss 10. The end surface 10 b facing the 22 side is formed by the end surface molding surface 22 a of the first movable mold 22, and the shaft hole 10 a of the boss 10 is formed by the shaft portion 23 a of the first slide mold 23.

  After the primary molding of the fixed blades 3, 3... With the grouped housing 2, first, as shown in FIG. If the slide rod 30 is pushed forward along the guide hole 29 while the first movable mold 22 is moved backward until it is completely removed, the second slide mold 24 is moved along the rotation axis Y. The shaft portion 24a can be completely pulled out from the upper boss 9 of the housing 2 by moving downward.

After moving the first movable mold 22, this time, as shown in FIGS. 10 to 12, the second movable mold 31 is fixed to the fixed mold with the fixed blades 3, 3,. Close it against 21. A lower part of the second movable mold 31 is provided with a third slide mold 34 that can slide along the rotation axis Y, and the third slide mold 34 is also closed. Then, cavities 37, 37... Corresponding to the movable blades 4, 4... Group are defined between the fixed blades 3, 3. A molten synthetic resin is injected from a gate (not shown) into the groups 37, 37,... , And the movable blades 4, 4,.

  In this case, the end surface of the lower support shaft 8 and a part of the lower end surface of each movable blade 4, 4... Are formed by the third slide mold 34, and each connection shaft 13, 13. The outer peripheral surface of the lower boss 10 is formed by the protrusion 35 projecting from the second movable mold 31 and the fixed mold 21. The synthetic resin used for the secondary molding has a melting point lower than that of the housing 2 in order to prevent the movable blades 4, 4... And the housing 2 and the fixed blades 3, 3.

  After the secondary molding of the movable blades 4, 4..., As shown in FIG. 13, the third slide mold 34 is moved downward and the second movable mold 31 is moved to the left together with the third slide mold 34. The second movable mold 31 can be released from the group of movable blades 4, 4..., So that the group of movable blades 4, 4. It remains on the fixed mold 21 side. Finally, after the pair of side slide molds 25, 25 are retracted, an ejector device (not shown) provided on the fixed mold 21 is operated to move the housing 2, the fixed blades 3, 3,... And the movable blades 4, 4 ... The group assembly, that is, the air-conditioning outlet device 1 is taken out from the fixed mold 21.

  Thus, the air-conditioning air outlet device 1 including the fixed blades 3, 3... The grouped housing 2 and the movable blades 4, 4,... Group can be easily obtained while eliminating the axial backlash of the movable blades 4, 4. And it can shape | mold reliably.

  The present invention is not limited to the above embodiments, and various design changes can be made without departing from the scope of the invention. For example, when forming the shaft hole 10 a of the lower boss 10, a pin-like slide mold provided in the first movable mold 22 so as to be movable along the rotation axis Y inside the housing 2 can also be used.

The perspective view which decomposed | disassembled one part of the blower outlet for air conditioning of this invention 2-2 sectional view of FIG. 3-3 sectional view of FIG. Sectional view along line 4-4 in FIG. The vertical side view of the shaping | molding apparatus shown in the primary shaping | molding state of the blower outlet for air conditioning of this invention 6-6 sectional view of FIG. Sectional view along line 7-7 in FIG. 8-8 sectional view of FIG. Corresponding figure with FIG. 5 showing the mold opening state of the molding apparatus The vertical side view of the shaping | molding apparatus shown in the secondary shaping | molding state of the air outlet for air conditioning of this invention 11-11 sectional view of FIG. 12-12 sectional view of FIG. Corresponding figure with FIG. 10 which shows the mold open state of the said molding apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Air-conditioning outlet apparatus 2 ... Housing 3 ... Fixed blade 4 ... Movable blade 4a ... Contact surface 4b ... Contact surface 7 ... Upper part Support shaft 8 ... Lower support shaft 9 ... Upper boss 9a ... Shaft hole 9b ... End face 10 ... Lower boss 10a ... Shaft hole 10b ... End face 20 ... Molding device 21・ ・ ・ Fixed mold 22 ・ ・ ・ First movable mold 22a ・ ・ End surface molding surface 23 ・ ・ ・ First slide mold 23a ・ ・ Shaft portion 24 ・ ・ ・ Second slide mold 24a ・ ・ Shaft portion 24b ・End face 29 ... guide hole 30 ... sliding rod 31 ... second movable mold

Claims (2)

A synthetic resin tubular housing that will be molded by the primary molding (2), the housing is molded by the secondary molding of synthetic resin in (2), a plurality of rotation axes parallel at a mutual spacing (Y) It is composed of a plurality of movable blades (4) each rotatable around ,
The upper and lower shaft holes (9a, 10a) in which upper and lower inner side walls (2a, 2b) facing each other of the housing (2) are coaxially aligned with each other on the respective rotation axes (Y), and the upper portions thereof And a plurality of sets of upper and lower bosses (9, 10) each having an end surface (9b, 10b) each having an opening in each of the lower shaft holes (9a, 10a) and orthogonal to the rotation axis (Y),
Each of the movable blades (4) has a pair of upper and lower support shafts (7, 8) that are rotatably fitted in the upper and lower shaft holes (9a, 10a), and upper and lower support shafts ( A pair of upper and lower abutment surfaces (4a, 4b) at the roots of the upper and lower bosses (9, 10), which are in contact with the respective end surfaces (9b, 10b) of the upper and lower bosses (9, 10) so as to be able to rotate and slide. Each has
The axis of rotation (Y) said upper and lower inner side wall (2a, 2b) a molding apparatus for molding the air-conditioning air outlet device is inclined in the longitudinal direction of the housing (2) with respect to,
A stationary mold (21) and a first movable mold (22) for primary molding of the housing (2) are configured to be openable and closable along the ventilation direction in the housing (2). For an end face that molds an end face (10b) of one of the upper and lower bosses (9, 10) facing the first movable mold (22) side in one movable mold (22). The first slide mold (23) for forming the molding surface (22a) and molding the shaft hole (10a) of the one boss (10) is connected to the first movable mold (22) with the rotational axis (Y). Movably mounted along the
Further, a second slide mold (24) for molding the shaft hole (9a) of one of the upper and lower bosses (9, 10) and the end face (9b) facing the fixed mold (21). ) Is attached to the first movable mold (22) so as to be movable along the rotational axis Y inside the housing (2),
After the primary molding, the second movable mold (31) for secondary molding that molds the movable blades (4) in cooperation with the fixed mold (21) and the primary molded product attached thereto. characterized in that it comprises a molding device of the air-conditioning air outlet device. In the shaping | molding apparatus of the blower outlet apparatus for air conditioning of Claim 1 ,
The second movable mold (22) is attached to a sliding rod (30) supported so as to be slidable in an oblique direction with respect to the opening and closing direction of the first movable mold (22). ), The second slide mold (24) is moved along the rotational axis (Y) by sliding the sliding rod (30) in a direction opposite to the opening / closing direction. A forming device for an air-conditioning outlet device.

Images