JP6761722B2 - Register and its manufacturing method - Google Patents

Description

The present invention relates to a register suitable for an air-conditioning air blowing device of an automobile and a method for manufacturing the same. A spiral flow path is provided in the duct member, and a wide range is provided from a slit-shaped outlet provided on the outer periphery of the duct member. The present invention relates to a register capable of uniformly blowing air and a method for manufacturing the same.

In the interior of an automobile, a defroster register is usually arranged under the windshield in order to remove water droplets and the like adhering to the inside of the windshield. This type of register is usually elongated in the vehicle width direction so as to blow a curtain-like air flow inside the windshield at a uniform flow velocity and a uniform air volume, as described in Patent Document 1, for example. It has an air outlet of a scale, and the base of the register is arranged under the windshield (inside the dashboard), and the air flow is evenly distributed toward the narrow horizontally long air outlet to blow air. As such, it is formed by providing a large ventilation case formed in a fan shape.

However, with the recent increase in the size of the windshield in automobiles, the air outlet of the defroster register has become longer, and in order to secure a sufficient air volume, the ventilation case at the base of the register has been increased in size. The ventilation case of the part is provided with a plurality of air inlets so as to uniformly disperse and blow an air flow having a sufficient amount of air.

For this reason, the base of this type of register is extremely large and bulky, and the base of the defroster register occupies a large amount of space in the instrument panel (inside the dashboard) in the automobile interior. .. For this reason, miniaturization of registers has been an issue.

In addition, in order to blow air from a thin and horizontally long air outlet with a uniform flow velocity and flow rate, the air flow introduced from a plurality of air inlets should be blown toward the thin and horizontally long air outlet. It is necessary to form a thinly extending flow path from the base of the introduction side to the air outlet, which causes a problem that the pressure loss at the time of blowing air increases and the blowing performance is easily impaired.

Therefore, in Patent Document 2 below, the applicant has provided a double spiral wall in the cylindrical duct-shaped housing to form a spiral flow path, and provided a slit hole along the longitudinal direction of the edge of the cylindrical duct. We proposed a register with a structure provided as an air outlet. This duct-type register introduces an air flow into a spiral flow path formed in a cylindrical duct member, generates a centrifugal force in the air flow swirling in the spiral flow path, and swirls with the centrifugal force. The flow is blown through the air outlet of the slit hole provided in the outer peripheral portion.

Japanese Unexamined Patent Publication No. 2000-255256 WO2014 / 18495A1 Gazette

Unlike conventional registers, this register does not require a large ventilation case with its base expanded in a fan shape, so the base of the register can be miniaturized, and the edge of the duct-shaped housing can be reduced. The air flow can be uniformly and efficiently blown from the long slit hole formed along the portion.

However, at the time of manufacturing the register, a screw member having a spiral wall is inserted and fixed in the cylindrical duct-shaped housing, but since the duct-shaped housing has the same cross-sectional shape, it can be manufactured by extrusion molding, but the screw. When the member is molded from synthetic resin, it is not possible to form a spiral shape in which a plurality of spirals continue by injection molding using a normal mold.

Therefore, when manufacturing a screw member, a synthetic resin material is extruded into a plate shape, and then the extruded soft flat plate is twisted and taken over to form a screw-shaped spiral wall. It was considered to do.

However, when the screw member is formed by such extrusion molding, the pitch dimension of the spiral is not constant, and the variation in the dimension of the spiral shape becomes large depending on the product. Further, a gap is likely to occur at the joint between the duct member and the screw member, and it is difficult to efficiently manufacture a product with high dimensional accuracy. Therefore, when the screw members are inserted into the duct-shaped housing and the joints thereof are fixed, an adhesive or an adhesive process is required at the time of assembling at the time of manufacturing, which increases the manufacturing cost.

Further, in order to use the register in which the screw member is provided in the duct as a register for the defroster, the register is installed under the curved windshield, so that the duct type is matched to the curved shape of the lower part of the windshield. It is preferable to bend the register in the axial direction.

However, it is difficult to design a screw member curved in the axial direction and mold the screw member using an injection molding die, especially when manufacturing a screw member corresponding to duct type registers of various lengths. It is necessary to design and mold the screw member for each different length, which requires a large number of man-hours at the time of manufacturing and increases the manufacturing cost.

In view of the above points, the present invention provides a register capable of easily, efficiently and inexpensively manufacturing a register in which a screw member is arranged in a curved cylindrical duct-shaped duct member, and a method for manufacturing the register. The purpose.

In order to achieve the above object, the registers of the present invention are
A screw member having a spiral wall is provided in the duct member of the curved register unit to form a spiral flow path in the duct member, and air is blown through a slit-shaped outlet provided on the outer peripheral portion of the duct member. In the register
The register unit is configured by connecting a first half pitch unit and a second half pitch unit, each of which has a half pitch screw member provided in the duct member, via a first curved connecting member.
A plurality of the register units are connected to each other via a second curved connecting member.
The first duct member of the first half-pitch unit and the second duct member of the second half-pitch unit each have a length corresponding to the half-pitch of the screw member.
The first half pitch unit and the second half pitch unit are formed by fitting a half pitch screw member inside the first duct member or the second duct member.
The first duct member and the second duct member are each composed of a pair of half-split duct members whose cross sections are halved along the central axis, and are mutually formed at the opening peripheral edges of the pair of half-split duct members. A fitting portion for fitting is provided, and the pair of half-split duct members are fitted so as to close the inside with the half-pitch screw member inserted inside.
The first curved connecting member and the second curved connecting member are formed so as to be curved with respect to the central axes of the first duct member and the second duct member.
A screw connecting portion that becomes a part of the screw member is provided in the cylindrical portion of the first curved connecting member and the second curved connecting member so as to be connectable to the half-pitch screw member.
At the ends of the first curved connecting member and the cylindrical portion of the second curved connecting member, a fitting portion that is inclined and connected to the first duct member or the second duct member is provided.
The ends of the first half-pitch unit and the second half-pitch unit are fitted via the first curved connecting member and in communication with the internal spiral flow path, and the plurality of register units are fitted with the second curved. It is characterized in that it is fitted and connected via a connecting member and by communicating an internal spiral flow path.

According to the register of the present invention, a duct-type register in which a screw member is arranged in a curved duct member can be easily manufactured at low cost with accurate dimensional accuracy. In particular, it is very difficult to form the pitch member of the screw member into a curved shape in terms of design and manufacture, but the register is relatively easy because it uses a normal linear half-pitch screw member. A pitch member can be designed and easily manufactured by injection molding or the like. Similarly, since the first duct member and the second duct member are each formed by using a pair of linear half-split duct members, each member can be easily manufactured by injection molding or the like. Members can be assembled.

Further, when assembling the members, the first half pitch unit and the second half pitch unit are connected via the first curved connecting member to form a register unit, and the connection between the register unit and the register unit is the same. Since it is sufficient to connect via the second curved connecting member of the above, a duct type register that is curved as a whole can be easily and efficiently manufactured.

Further, when changing the curvature of the curved register, the curvatures of the first curved connecting member and the second curved connecting member may be changed, so that the curvature of the curved register can be easily changed, and the curvature of the curved register can be easily changed. A duct type register can be easily manufactured according to the curved space.

Here, in the portion where the half-split duct member and the half-split duct member are fitted together, a thin plate-shaped fitting portion, a locking portion, and a locking claw that fit each other when the half-split duct member is closed together. It is preferable to provide. Further, in a portion where the first duct member and the first curved connecting member or the second curved connecting member are fitted, and a portion where the second duct member and the first curved connecting member or the second curved connecting member are fitted. Is preferably provided with a fitting portion, a locking portion and a locking claw that are fitted to each other. As a result, the fitting portion of the half-split duct member and the half-split duct member can be fitted tightly to form the duct member firmly, and air leakage during use can be suppressed to the minimum.

The method for manufacturing a register of the present invention
A register having a structure in which a screw member having a spiral wall is arranged in a cylindrical and curved duct member, a spiral flow path is formed in the duct member, and a slit-shaped outlet is provided on the outer peripheral portion of the duct member. In the method of manufacturing a register manufactured of synthetic resin,
A process of injecting a synthetic resin into a molding die and molding the half-pitch screw member for half a pitch of the screw member by injection molding.
A pair of half-split duct members having a length corresponding to the half-pitch screw member and having a half-split shape in a cross section in the longitudinal direction through which the central axis of the duct member passes are injected with synthetic resin into a molding die. And the process of molding by injection molding
A step of injecting a synthetic resin into a molding die and molding the first curved connecting member and the second curved connecting member in which a screw connecting portion to be a part of the screw member is provided in a cylindrical portion by injection molding.
A step of inserting the half-pitch screw member into the half-split duct member, closing the half-pitch duct member so as to fit together, and assembling the first half-pitch unit and the second half-pitch unit.
A step of assembling a register unit by fitting and connecting the first half pitch unit and the second half pitch unit via the first curved connecting member.
A process of assembling a duct-type register of an arbitrary length by fitting and connecting a plurality of the register units via the second curved connecting member, and
Including
The first curved connecting member and the second curved connecting member are formed so as to be curved with respect to the central axes of the first duct member and the second duct member.
A screw connecting portion that becomes a part of the screw member is provided in the cylindrical portion of the first curved connecting member and the second curved connecting member so as to be connectable to the half-pitch screw member.
During the assembly process, the ends of the first half pitch unit and the second half pitch unit are fitted via the first curved connecting member and through the internal spiral flow path, and the plurality of register units are fitted. It is characterized in that it is fitted and connected via the second curved connecting member and by communicating the internal spiral flow path.

According to this register manufacturing method, it is usually very difficult to form the pitch member of the screw member into a curved shape in terms of design and manufacture, but in the above register manufacturing method, it is usually linear. Since a half-pitch screw member is used, the pitch member can be designed relatively easily and can be easily manufactured by injection molding or the like. Further, since the first duct member and the second duct member are each formed by using a pair of linear and half-split duct members, each member can be easily manufactured by injection molding or the like, and the members can be easily assembled. be able to.

Further, when assembling the members, the first half pitch unit and the second half pitch unit are connected via the first curved connecting member to form a register unit, and the connection between the register unit and the register unit is the same. Since it is sufficient to connect via the second curved connecting member, a duct type register that is curved as a whole can be easily and efficiently manufactured.

According to the register of the present invention and the manufacturing method thereof, a register in which a screw member is arranged in a curved cylindrical duct-shaped duct member can be easily, efficiently and inexpensively manufactured.

It is a front view of the register which shows one Embodiment of this invention. It is a top view of the register. It is a perspective view of the register. It is an exploded perspective view of the 1st half pitch unit and the 2nd half pitch unit. It is an exploded perspective view of the 1st half pitch unit. (A) is a perspective view of the upper half-split duct member of the first half-pitch unit, and (b) is a perspective view of the upper half-split duct member as viewed from the back side. (A) is a perspective view seen from the inside of the upper half-split duct member of the first half-pitch unit, and (b) is a plan view of the upper half-split duct member. (A) is a front view of the upper half-split duct member, and (b) is a left side view thereof. (A) is a perspective view seen from the inside of the lower half split duct member of the first half pitch unit, and (b) is a perspective view in which the angle of the lower half split duct member is changed. (A) is a front view of the lower half-split duct member, (b) is a plan view thereof, and (c) is a left side view thereof. It is an exploded perspective view of the 2nd half pitch unit. (A) is a perspective view of the upper half-split duct member of the second half-pitch unit, and (b) is a perspective view of the upper half-split duct member as viewed from the back side. (A) is a front view of the upper half-split duct member, (b) is a plan view thereof, and (c) is a left side view thereof. (A) is a perspective view seen from the inside of the lower half split duct member of the second half pitch unit, and (b) is a perspective view in which the angle of the lower half split duct member is changed. (A) is a front view of the lower half-split duct member, (b) is a plan view thereof, and (c) is a left side view thereof. (A) is a perspective view of the first curved connecting member, (b) is a perspective view thereof as viewed from the opposite direction, and (c) is a front view thereof. (A) is a front view of the first curved connecting member, (b) is a plan view thereof, and (c) is a bottom view thereof. (A) is a perspective view of the second curved connecting member, and (b) is a perspective view thereof as viewed from the opposite direction. (A) is a front view of the second curved connecting member, (b) is a plan view thereof, and (c) is a left side view. It is a perspective view of two half-pitch screw members. (A) is a front view of the half-pitch screw member, (b) is a plan view thereof, and (c) is a right side view thereof.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3 show a duct type register, in which a screw member is arranged in a curved cylindrical duct member to form a spiral flow path inside. As shown in the figure, the register is configured by connecting two register units R so as to be curved in the axial direction via a second curved connecting member 4, and an introduction duct 19 is connected to an end portion of the duct. The tip is closed by the lid 18. Each register unit R is configured by connecting the first half pitch unit 1 and the second half pitch unit 2 in the axial direction via the first curved connecting member 3, and the first duct member 10 and the second duct member. A screw member for one pitch is fitted in the 20.

As shown in FIGS. 2 and 3, the register is formed to be curved in the axial direction as a whole, and the bending ratio thereof is as shown in FIGS. 17 and 19, the first curved connecting member 3 and the second curved connecting member. It is determined according to the bending angle α of 4, and the total length of the register can be easily set to an arbitrary length by increasing the number of connected register units R.

As shown in FIGS. 2 and 3, one register unit R is configured by connecting the first half pitch unit 1 and the second half pitch unit 2 in the axial direction via the first curved connecting member 3. The 1-half-pitch unit 1 has a cylindrical first duct member 10, and a half-pitch screw member 7 in the front half is arranged in the first duct member 10. Similarly, the second half-pitch unit 2 has a cylindrical second duct member 20, and the second half-pitch screw member 7 in the latter half is arranged in the second duct member 20. The first duct member 10 and the second duct member 20 are formed to have a length corresponding to the length of the half-pitch screw member 7.

As shown in FIG. 4, the half-pitch screw member 7 is arranged coaxially with the central axis of the duct in the first duct member 10, and the half-pitch screw member 7 is also arranged in the second duct member 20 on the central axis of the duct. Is arranged coaxially with. The two half-pitch screw members 7 are formed of members having the same shape. As shown in FIG. 20, the two half-pitch screw members 7 of the first half portion and the second half portion are arranged in each duct in a form in which the screw portions are rotated 180 degrees with each other around the central axis, and are arranged in the axial direction. Connected to. Further, the two half-pitch screw members 7 are connected by a plate-shaped screw connecting portion 31 provided in the cylindrical portion 30 of the first curved connecting member 3, and a spiral wall for one pitch is formed there. ..

That is, as shown in FIG. 20, each of the two half-pitch screw members 7 is formed with a spiral wall for half-pitch (half-cycle), and the half-pitch screw member 7 in the first half is a first duct member. The half-pitch screw member 7 in the latter half of the portion 10 is connected to the second duct member 20 in a twisted state of 180 degrees. The half-pitch screw member 7 disposed in the first duct member 10 and the half-pitch screw member 7 disposed in the second duct member 20 are interposed between the half-pitch screw member 7 via the screw connecting portion 31 of the first curved connecting member 3. Is connected. A pair of half-pitch screw members 7 are arranged and connected in the first duct member 10 and the second duct member 20 in a twisted state of 180 degrees, so that a spiral flow path for one pitch (one cycle) is formed. The register unit R composed of the first half pitch unit 1 and the second half pitch unit 2 is slightly formed by forming the cylindrical portion 30 of the first curved connecting member 3 so as to be curved with respect to the central axis. It is formed in a curved shape.

As shown in FIG. 3, the register is configured by connecting a plurality of (two) register units R in the axial direction via the second curved connecting member 4, and four half-pitch screws in the duct member. A member 7, that is, a spiral wall for 2 pitches (2 cycles) is provided. By forming the cylindrical portion 40 of the second curved connecting member 4 in a curved shape with respect to the central axis, the two register units R are formed in a slightly curved shape as shown in FIG.

Further, as described above, in the first duct member 10 and the second duct member 20, the first spiral flow path 8 and the second spiral flow flow along the axial direction on both sides of the spiral wall, as shown in FIG. The road 9 is formed as a double spiral flow path, and the two adjacent register units R are communicated with each other via the second curved connecting member 4, and the second duct member 20 and one in the first duct member 10 are connected to each other. Between the pair of half-pitch screw members 7, that is, between the half-pitch screw member 7 in the latter half and the half-pitch screw member 7 in the first half, a plate-shaped screw connecting portion provided in the cylindrical portion 40 of the second curved connecting member 4. It is connected by 41.

Slit-shaped air outlets 5 and 6 are provided as air outlets of the register in the tangential direction of the outer peripheral portion of the first duct member 10 and the second duct member 20. On the other hand, as shown in FIGS. 3 and 4, the air introduction port is provided as an introduction duct 19 connected to the left end of the register, and the air flow sent through the introduction duct 19 is the first spiral flow path 8 and the first spiral flow path 8. 2 The structure is such that the spiral flow path 9 is sent while turning clockwise (when viewed from the left side), and air is blown from the outlets 5 and 6 that open in the tangential direction in the clockwise direction.

That is, the outlets 5 and 6 are opened in the tangential direction of the outer peripheral portion of the first duct member 10 and in the direction of rotation of the spiral (direction of rotation in the direction of feeding the screw), and have a slit shape along the longitudinal direction of the duct. Is formed in. The air flow blown from the air conditioner (not shown) is blown while swirling in the spiral flow path, and is blown from the outlets 5 and 6.

As shown in FIG. 5, the first duct member 10 of the first half-pitch unit 1 is formed by fitting the lower half-split duct member 12 under the upper half-split duct member 11. Further, a half-pitch screw member 7 is coaxially fitted in the first duct member 10. When the half-pitch screw member 7 is assembled, for example, the upper half-split duct member 11 is coaxially fitted into the lower half-split duct member 12 in a predetermined form, and the upper half-split duct member 11 is the lower half-split duct member 12 and the half-pitch screw member. It is fitted so as to cover the top of 7. Further, the first curved connecting member 3 is fitted to the right end of the first duct member 10, and the introduction duct 19 is fitted to the left end of the first duct member 10 for air introduction.

As shown in FIG. 5, the upper half-split duct member 11 and the lower half-split duct member 12 are formed in a half-split shape obtained by dividing a cylindrical duct member into two in a cross section along the central axis thereof. In order to fit both half-split duct members to each other, two pairs of locking claws 11a are provided on both lower sides of the upper half-split duct member 11, and two pairs on both upper sides of the lower half-split duct member 12. The locking portion 12a is projected at a position corresponding to the locking claw 11a. Thin plate fitting portions 11b and 12b that can be closely fitted to each other are provided on the periphery of the openings of the upper half-split duct member 11 and the lower half-split duct member 12.

As a result, when the first half pitch unit 1 is assembled, when the upper half-split duct member 11 and the lower half-split duct member 12 are fitted so as to be closed, the thin plate fitting portion 11b and the thin plate fitting portion are fitted. The 12b is tightly fitted, the two pairs of locking portions 12a and the two pairs of locking claws 11a are locked, and the first duct member 10 is formed by fitting. The air outlet 5 is projected upward in the tangential direction of the outer peripheral portion of the upper half split duct member 11 of the first duct member 10. A guide piece 11c is projected from the middle lower portion of the upper half-split duct member 11, and when the upper half-split duct member 11 and the lower half-split duct member 12 are fitted to each other at the time of assembly, the guide piece 11c is the lower half. It is guided by a guide portion 12c provided at a corresponding position of the split duct member 12 so that it can be fitted accurately.

As shown in FIGS. 4 and 5, the fitting portion 13 and the locking portion 15 are provided at the left end portion of the first duct member 10, that is, the left end portion of the upper half split duct member 11 and the lower half split duct member 12. .. The fitting portion 13 is formed so that the right end portion of the introduction duct 19 can be fitted to the left end portion of the first duct member 10. A locking claw 19a provided at the outer peripheral end of the introduction duct 19 is locked to the locking portion 15. On the other hand, a fitted portion 14 and a locking claw 16 are formed on the outer peripheral portion at the right end portion of the first duct member 10, that is, at the right end portion of the upper half split duct member 11 and the lower half split duct member 12. The fitted portion 14 is formed so that the fitting portion 32 of the first curved connecting member 3 can be fitted, and the locking portion 34 of the first curved connecting member 3 is locked to the locking claw 16.

As described above, the half-pitch screw member 7 in the first half portion is fitted in a fixed position in the first duct member 10 by using the engaging convex portions 7a provided at the four corners thereof. , 10, a locking recess 17 is provided at a predetermined position between the upper half-split duct member 11 and the lower half-split duct member 12, and the engaging convex portion 7a of the half-pitch screw member 7 is fitted into the locking recess 17. , The structure is such that the half-pitch screw member 7 is fitted at a fixed position in the first duct member 10.

As shown in FIGS. 16 and 17, the first curved connecting member 3 for connecting the first duct member 10 and the second duct member 20 is formed by providing a screw connecting portion 31 in a cylindrical portion 30 curved by an angle α degree. Ru. As shown in FIG. 17, the cylindrical portion 30 of the first curved connecting member 3 is curved by an angle α with respect to the central axis S0 of the cylinder to be fitted with the fitting portions, that is, the fitting portions 32 on both sides of the cylindrical portion 30. The central axis S1 of the joint portion 33 is formed so as to be inclined with respect to the central axis S0 of the cylinder by an angle α. As a result, when the first duct member 10 and the second duct member 20 are connected to the fitting portions 32 and the fitted portions 33 provided on both sides of the first curved connecting member 3, the first duct member 10 and the first duct member 10 and the second duct member 20 are connected. The two duct members 20 are connected by being curved by an angle α with respect to each central axis S0.

As shown in FIG. 5, the fitting portion 32 of the first curved connecting member 3 is formed in a shape in which the fitted portion 14 of the first duct member 10 is fitted inward, and the locking portion 34 is formed on the outer peripheral portion. Is projected, and when the fitted portion 14 of the first duct member 10 is fitted into the fitting portion 32, the locking portion 34 is attached to the locking claw 16 on the upper half-split duct member 11 of the first duct member 10. It is locked and the first curved connection member 3 and the first duct member 10 are fitted and connected to each other. At this time, the screw connecting portion 31 in the cylindrical portion 30 of the first curved connecting member 3 is connected to the end portion of the half-pitch screw member 7 in the first half-pitch unit 1.

On the other hand, as shown in FIGS. 1 to 3, the second half pitch unit 2 is connected via the first curved connecting member 3 next to the first half pitch unit 1. As shown in FIG. 11, the second duct member 20 of the second half pitch unit 2 is formed by fitting the upper half duct member 21 onto the lower half duct member 22. In the second half-pitch unit 2, the upper half-pitch duct member 21 is placed on the lower half-split duct member 22 in a state where the half-pitch screw member 7 in the latter half is coaxially fitted in the lower half-split duct member 22. It is fitted so as to cover it, and further, as shown in FIG. 4, the second curved connecting member 4 is fitted to the right end portion of the second duct member 20.

As shown in FIG. 11, the upper half-split duct member 21 and the lower half-split duct member 22 of the second duct member 20 are formed into a half-split shape obtained by dividing a cylindrical duct member into two parts along a cross section along the central axis thereof. Two pairs of locking claws 21a are provided on both lower sides of the upper half-split duct member 21 to be formed and fitted to each other, and two pairs of locking portions are provided on both upper sides of the lower half-split duct member 22. 22a is projected at a position corresponding to the locking claw 21a. Further, thin plate fitting portions 21b and 22b that can be closely fitted to each other are provided on the peripheral edge of the opening of the upper half-split duct member 21 and the lower half-split duct member 22.

As a result, when the half-split upper half-split duct member 21 and the lower half-split duct member 22 are fitted so as to be closed, the thin plate fitting portion 21b and the thin plate fitting portion 22b are tightly fitted into two pairs. The locking portion 22a and the two pairs of locking claws 21a are locked, and the second duct member 20 is formed by fitting. In the upper half split duct member 21 of the second duct member 20, the outlet 6 is projected upward in the tangential direction of the outer peripheral portion thereof. As shown in FIG. 11, a guide piece 21c is projected from the lower middle portion of the upper half-split duct member 21, and when the upper half-split duct member 21 and the lower half-split duct member 22 are fitted to each other during assembly, a guide is provided. The piece 21c is guided by a guide portion 22c provided at a corresponding position of the lower half split duct member 22, so that the piece 21c can be fitted at an accurate position.

As shown in FIGS. 4 and 11, the fitting portion 23 and the locking portion 25 are provided at the left end portion of the second duct member 20, that is, the left end portion of the upper half split duct member 21 and the lower half split duct member 22. , The right end portion of the fitting portion 32 of the first curved connecting member 3 is formed so as to be able to be fitted to the left end portion of the second duct member 20. A locking claw 16 provided at the outer peripheral end of the first curved connecting member 3 is locked to the locking portion 25. On the other hand, a fitted portion 24 and a locking claw 26 are formed on the outer peripheral portion of the right end portion of the second duct member 20, that is, the upper half split duct member 21 and the lower half split duct member 22. The fitting portion 42 of the second curved connecting member 4 is fitted to the joint portion 24, and the locking portion 44 of the second curved connecting member 4 is locked to the locking claw 26.

In the second duct member 20, the half-pitch screw member 7 in the latter half is twisted 180 degrees around the central axis with respect to the half-pitch screw member 7 in the first half mounted in the first duct member 10. It is fitted with. Therefore, as shown in FIGS. 11 and 12, locking recesses 27 are provided at predetermined positions of the upper half-split duct member 21 and the lower half-split duct member 22. When the half-pitch screw member 7 is attached to a fixed position in the second duct member 20, the engaging convex portion 7a provided on the edge of the half-pitch screw member 7 is fitted into the locking recess 27 provided on the second duct member 20. Fit and lock.

As a result, the half-pitch screw member 7 in the second duct member 20 is attached to the half-pitch screw member 7 installed in the first duct member 10 in a form twisted 180 degrees around the central axis, and two pieces are attached. The half-pitch screw member 7 of the above is connected via the screw connecting portion 31 in a form twisted by 180 degrees. As a result, the screw member for one pitch is in the register unit R of the first half pitch unit 1 and the second half pitch unit 2 composed of the first duct member 10, the second duct member 20, and the first curved connecting member 3. Is formed in.

As shown in FIGS. 1 to 3, this register is configured by connecting two register units R in communication with each other via a second curved connecting member 4. As shown in FIGS. 18 and 19, the second curved connecting member 4 connecting the two register units R is formed to have a cylindrical portion 40 curved by an angle α degree, and has a plate shape in the curved cylindrical portion 40. The screw connecting portion 41 of the above is provided in the vertical direction of the diameter portion on the central axis. As shown in FIG. 19C, the screw connecting portion 41 is cylindrical in a side view so as to be connected to the end portion of the half pitch screw member 7 in the latter half of the second duct member of the second half pitch unit 2. It is provided in the vertical and vertical directions in the portion 40.

As shown in FIG. 19, the cylindrical portion 40 of the second curved connecting member 4 is curved by an angle α with respect to the central axis S0 of the cylinder to be fitted with the fitting portions, that is, the fitting portions 42 on both sides of the cylindrical portion 40. The central axis S1 of the joint portion 43 is formed so as to be inclined with respect to the central axis S0 of the cylinder by an angle α. As a result, when the second duct member 20 and the first duct member 10 are connected to the fitting portions 42 and the fitted portions 43 provided on both sides of the second curved connecting member 4, the second duct member 20 and the second duct member 20 are connected. The 1 duct member 10 is connected by being curved by an angle α with respect to each central axis S0.

As shown in FIG. 11, the fitting portion 42 of the second curved connecting member 4 is formed in a shape in which the fitted portion 24 of the second duct member 20 is fitted inward, and the locking portion 44 is formed on the outer peripheral portion. Is projected, and when the fitted portion 24 of the second duct member 20 is fitted into the fitting portion 42, the locking portion 44 is attached to the locking claw 26 on the upper half-split duct member 21 of the second duct member 20. It is locked so that the second curved connecting member 4 and the second duct member 20 are fitted and connected to each other. As described above, the screw connecting portion 41 in the cylindrical portion 40 of the second curved connecting member 4 is provided in the vertical vertical direction so as to be connectable to the end portion of the half pitch screw member 7 in the second half pitch unit 2. ..

When manufacturing a register having the above configuration, the upper half-split duct member 11, the lower half-split duct member 12, the second half-split duct member 20, the upper half-split duct member 21, and the lower half-split duct, which are the parts thereof, are manufactured. The member 22, the first curved connecting member 3, the second curved connecting member 4, and the half-pitch screw member 7 each have a shape capable of injection molding with a synthetic resin, and are used for injection molding at the time of manufacturing. Molds are made and they are injection molded with synthetic resin.

Each of the molded members is assembled in the assembling step, and the first duct member 10 of the first half pitch unit 1 has the half pitch screw member 7 in the lower half duct member 12 as shown in FIG. In a state of being fitted in a fixed position, the upper half-split duct member 11 is fitted on the lower half-split duct member 12 so as to cover it from above. At this time, the locking portions 12a on both sides are locked to the locking claws 11a, and the upper and lower thin plate fitting portions 11b and 12b are fitted to specify the first duct member 10 and the half-pitch screw member 7 inside. It can be easily assembled in the state of being fitted in the form of.

Similarly, as shown in FIG. 11, the second duct member 20 of the second half-pitch unit 2 has an upper half-pitch screw member 7 fitted in a fixed position in the lower half-pitch duct member 22. It is fitted on the lower half-split duct member 22 so as to cover the half-split duct member 21 from above. As shown in FIG. 11, the half-pitch screw member 7 in the latter half is inserted in a state of being twisted 180 degrees around the central axis with respect to the half-pitch screw member 7 in the first half shown in FIG. When the upper half split duct member 21 and the lower half split duct member 22 are fitted, the locking portions 22a on both sides are locked to the locking claws 21a, and the upper and lower thin plate fitting portions 21b and 22b are fitted and assembled. , The second duct member 20 is assembled with the half-pitch screw member 7 attached to the inside in a predetermined form.

In the case of this register, as shown in FIGS. 1 to 3, two register units R are connected. Therefore, in the assembly process, the two first half pitch units used in the two register units R are connected. One and two second half pitch units 2 are assembled.

Next, the first half pitch unit 1 and the second half pitch unit 2 are connected via the first curved connecting member 3 to assemble the register unit R. At this time, the fitting portion 32 on the left side of the first curved connecting member 3 is fitted to the fitted portion 14 on the right side of the first duct member 10, and the locking portion 34 is locked to the locking claw 16. Fit. Further, the fitting portion 23 on the left side of the second duct member 20 is fitted to the fitting portion 33 on the right side of the first curved connecting member 3, and the locking portion 25 is locked to the locking claw 35 for fitting. Let me wear it. As a result, the first half pitch unit 1 and the second half pitch unit 2 are connected via the first curved connecting member 3, and the register unit R is assembled. Two sets of such a register unit R are assembled.

As shown in FIGS. 1 to 3, when manufacturing a register in which two register units R are connected in the axial direction, one register unit R assembled as described above is connected to the second curved connecting member 4. It is manufactured by connecting to another register unit R via the like. As shown in FIG. 4, since the second curved connecting member 4 is fitted to the tip of the second half pitch unit 2 of the left register unit R, another register unit R is as described above. The fitting portion 13 of the first half pitch unit 1 of the other register unit R in which the first half pitch unit 1 and the second half pitch unit 2 are connected via the first curved connecting member 3 is seconded. Both can be connected by fitting to the fitted portion 43 of the curved connecting member 4.

Next, two sets of register units R are connected via the second curved connecting member 4. That is, the fitting portion 42 on the left side of the second curved connecting member 4 is fitted to the fitted portion 24 of the second duct member 20 of the register unit R on the left side, and the first duct member 10 of the register unit R on the right side is fitted. The fitting portion 13 of the above is fitted to the fitting portion 43 on the right side of the second curved connecting member 4. At this time, the locking portion 44 of the second curved connecting member 4 is locked to the locking claw 26 of the second duct member 20, and the locking portion 15 of the first duct member 10 is locked to the second curved connecting member 4. It is locked to the claw 45. In this way, the two sets of register units R can be easily connected via the second curved connecting member 4.

Next, the introduction duct 19 is fitted to the fitting portion 13 of the first duct member 10 at the left end, and the lid 18 is fitted to the fitted portion 24 of the second duct member 20 at the right end to assemble the register. Is completed. When manufacturing a longer register, another register unit R may be connected to the fitted portion 24 of the second duct member 20 via the second curved connecting member 4 instead of the lid body 18.

By the way, the half-pitch screw member 7 is formed by being twisted in the right-handed screw direction from the left side surface to the right side surface in the register unit R in which the first half pitch unit 1 and the second half pitch unit 2 are fitted. However, a half-pitch screw member is formed so as to twist in the left-handed screw direction, and an outlet is provided in the tangential direction of the outer peripheral portion on the opposite side of the first duct member 10 and the second duct member 20 to manufacture a register unit. You can also do it.

In this way, a curved structure in which a screw member is arranged in a duct member that is curved as a whole to form a spiral flow path in the duct member, and air is blown through air outlets 5 and 6 provided on the outer peripheral portion of the duct member. Even if there is a register, as described above, by connecting the first half pitch unit 1 and the second half pitch unit 2 via the first curved connecting member 3 and the second curved connecting member 4, the entire unit is curved. Moreover, a duct-type register having a spiral flow path inside can be easily manufactured.

Further, since each member can be fitted and assembled at the time of manufacturing, the register can be mass-produced at a lower cost as compared with the case of assembling using heat fusion or an adhesive, and the register unit R can be assembled. By changing the number of connections, curved duct-type registers of arbitrary length can be easily mass-produced at low cost.

The register is installed, for example, as a duct type register along a curved ceiling or floor in the vehicle interior, and a blower duct on the blower side of the air conditioner is connected to the introduction duct 19. The duct-type register, which is configured by connecting an arbitrary number of register units R, is small and can be manufactured to any length, so it can be easily registered in a narrow space such as the ceiling or floor of a passenger compartment. Can be installed.

When the register is used, when the blower of the air conditioner operates and the air flow is sent into the register through the introduction duct 19, as shown in FIG. 4, the first half pitch unit 1 and the second half pitch unit of the register unit R An air flow is guided through the first spiral flow path 8 and the second spiral flow path 9 formed in the second while swirling in the traveling direction of the screw. At this time, since the air flow flowing through the first spiral flow path 8 and the air flow flowing through the second spiral flow path 9 flow in the traveling direction of the screw while swirling, a centrifugal force acts on the air flow and the circumference of the duct. The air flow flowing near the wall surface is smoothly blown into the vehicle interior with low pressure loss from the air outlets 5 and 6 that open in the tangential direction and in the turning direction.

Further, since the blowing pressure in the duct is divided into the swirling force of the air flow and the guiding wind force in the screw direction, the blowing pressure is not concentrated on the tip of the register and is distributed in the longitudinal direction of the duct type register. Then, the ventilation pressure is generated in the duct. Therefore, the air flow blown out can be blown from a large number of air outlets 5 and 6 arranged side by side along the longitudinal direction of the duct at a relatively uniform air flow rate and speed.

Further, the duct type register can also be used as a register for a defroster under the windshield in the vehicle interior. In this case, a lid is fitted to both side ends of the register unit R to which a plurality of the registered units R are connected to close both ends, and an introduction duct is connected to a substantially central portion of the register unit R. In the duct, screw members forming screws (right-hand screw and left-hand screw) in opposite directions are arranged from the center to both sides, and double spiral flow paths are formed on both sides of the screw member to form a central spiral flow path. The structure may be such that the air flow sent from the introduction duct is sent from the central portion to the spiral flow paths in the ducts on both sides, and the air flows are swirled in opposite directions.

1 1st half pitch unit 2 2nd half pitch unit 3 1st curved connection member 4 2nd curved connection member 5 Outlet 6 Outlet 7 Half pitch screw member 7a Engagement convex part 8 1st spiral flow path 9 2nd spiral Flow path 10 1st duct member 11 Upper half-split duct member (half-split duct member)
11a Locking claw 11b Thin plate fitting part 11c Guide piece 12 Lower half-split duct member (half-split duct member)
12a Locking part 12b Thin plate fitting part 12c Guide part 13 Fitting part 14 Fitted part 15 Locking part 16 Locking claw 17 Locking recess 18 Lid body 19 Introduction duct 19a Locking claw 20 Second duct member 21 Above Half-split duct member (half-split duct member)
21a Locking claw 21b Thin plate fitting part 21c Guide piece 22 Lower half-split duct member (half-split duct member)
22a Locking part 22b Thin plate fitting part 22c Guide part 23 Fitting part 24 Fitting part 25 Locking part 26 Locking claw 27 Locking recess 30 Cylindrical part 31 Screw connection part 32 Fitting part 33 Fitting part 34 Locking part 35 Locking claw 40 Cylindrical part 41 Screw connecting part 42 Fitting part 43 Fitted part 44 Locking part 45 Locking claw R Register unit

Claims (5)

A screw member having a spiral wall is provided in the duct member of the curved register unit to form a spiral flow path in the duct member, and air is blown through a slit-shaped outlet provided on the outer peripheral portion of the duct member. In the register
The register unit is configured by connecting a first half pitch unit and a second half pitch unit, each of which has a half pitch screw member provided in the duct member, via a first curved connecting member.
A plurality of the register units are connected to each other via a second curved connecting member.
The first duct member of the first half-pitch unit and the second duct member of the second half-pitch unit each have a length corresponding to the half-pitch of the screw member.
The first half pitch unit and the second half pitch unit are formed by fitting a half pitch screw member inside the first duct member or the second duct member.
The first duct member and the second duct member are each composed of a pair of half-split duct members whose cross sections are halved along the central axis, and are mutually formed at the opening peripheral edges of the pair of half-split duct members. A fitting portion for fitting is provided, and the pair of half-split duct members are fitted so as to close the inside with the half-pitch screw member inserted inside.
The first curved connecting member and the second curved connecting member are formed so as to be curved with respect to the central axes of the first duct member and the second duct member.
A screw connecting portion that becomes a part of the screw member is provided in the cylindrical portion of the first curved connecting member and the second curved connecting member so as to be connectable to the half-pitch screw member.
At the ends of the first curved connecting member and the cylindrical portion of the second curved connecting member, a fitting portion that is inclined and connected to the first duct member or the second duct member is provided.
The ends of the first half-pitch unit and the second half-pitch unit are fitted via the first curved connecting member and in communication with the internal spiral flow path, and the plurality of register units are fitted with the second curved. A register characterized in that it is fitted and connected via a connecting member and by communicating an internal spiral flow path. A thin plate-shaped fitting portion, a locking portion, and a locking claw that fit each other when the half-split duct member is closed together are provided at a portion where the half-split duct member and the half-split duct member are fitted. The register according to claim 1, wherein the register is characterized in that. A portion for fitting the first duct member and the first curved connecting member or the second curved connecting member, and a portion for fitting the second duct member with the first curved connecting member or the second curved connecting member. The register according to claim 1, wherein a fitting portion, a locking portion, and a locking claw that are fitted to each other are provided. The register according to claim 1, wherein a lid is covered on one end of the plurality of connected register units, and an air introduction duct is connected to the other end. A register having a structure in which a screw member having a spiral wall is arranged in a cylindrical and curved duct member, a spiral flow path is formed in the duct member, and a slit-shaped outlet is provided on the outer peripheral portion of the duct member. In the method of manufacturing a register manufactured of synthetic resin,
A process of injecting a synthetic resin into a molding die and molding the half-pitch screw member for half a pitch of the screw member by injection molding.
A pair of half-split duct members having a length corresponding to the half-pitch screw member and having a half-split shape in a cross section in the longitudinal direction through which the central axis of the duct member passes are injected with synthetic resin into a molding die. And the process of molding by injection molding
A step of injecting a synthetic resin into a molding die and molding the first curved connecting member and the second curved connecting member in which a screw connecting portion to be a part of the screw member is provided in a cylindrical portion by injection molding.
A step of inserting the half-pitch screw member into the half-split duct member, closing the half-pitch duct member so as to fit together, and assembling the first half-pitch unit and the second half-pitch unit.
A step of assembling a register unit by fitting and connecting the first half pitch unit and the second half pitch unit via the first curved connecting member.
A process of assembling a duct-type register of an arbitrary length by fitting and connecting a plurality of the register units via the second curved connecting member, and
Including
The first curved connecting member and the second curved connecting member are formed so as to have a central axis inclined with respect to the central axes of the first duct member and the second duct member.
A screw connecting portion that becomes a part of the screw member is provided in the cylindrical portion of the first curved connecting member and the second curved connecting member so as to be connectable to the half-pitch screw member.
During the assembly process, the ends of the first half pitch unit and the second half pitch unit are fitted via the first curved connecting member and through the internal spiral flow path, and the plurality of register units are fitted. A method for manufacturing a register, characterized in that the register is fitted and connected via the second curved connecting member and by communicating the internal spiral flow path.

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