JP2001233039A - Slide door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide door device performing smooth sliding operation. SOLUTION: This device is provided with a frame part 10 formed with an opening 10a, and a slide plate 5 positioned along a one side face side of this frame part 10 and provided with a projecting slide pin 23 sliding along a slide guide groove 22 formed on the frame part 10. A notch 22c for discharging dust or the like is formed on an end part 22a of the slide guide groove 22. The dust is gathered to the end part 22a of the slide guide groove 22 in association with the sliding operation of the slide pin 23 and it is discharged outside the groove from the notch 22b. By this, the slide pin 23 housed in the slide guide groove 22 can smoothly perform sliding operation with respect to an inner wall of the slide guide groove 22, and an opening area of the opening 10a can be positively controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door device, for example, a sliding door device used for an air conditioning unit of an automobile.

[0002]

2. Description of the Related Art Conventionally, an air conditioning unit for a vehicle in which a heat exchanger for cooling, a heat exchanger for heating, and a blower are integrated is disposed in the center of a vehicle width direction behind an engine room and in a front part of a vehicle compartment. There is. An example of such an air conditioning unit for a vehicle is disclosed in Japanese Patent Application Laid-Open No. H11-254942.

In this vehicle air conditioning unit, the air blown from the blower is passed through a cooling heat exchanger, and the air distribution is controlled by an air mixing door. In this air mix door, the ratio of the amount of air that allows the air cooled by the cooling heat exchanger to pass directly to the bypass passage and the amount of air that allows the air cooled by the cooling heat exchanger to pass to the heating heat exchanger. Is controlling. The air that has passed through the heating heat exchanger is joined and mixed again in the air mixing chamber together with the air that has been heated and sent to the bypass passage, and is mixed and adjusted to a predetermined blowing temperature. The air conditioned here rises along the wall of the unit case on the vehicle interior side, and is blown out into the vehicle interior from the vent outlets, defroster outlets, and foot outlets that are indoor outlets. I have.

[0004] The air mix door is a slide door slidable in a lateral direction with respect to a guide rail (guide groove), and is curved so as to expand toward the downstream side of the cool air passing through the cooling heat exchanger. It is formed. By using such a slide door, it is possible to make the air mix door compact, and to allow the air that has passed through the cooling heat exchanger to flow smoothly to the bypass passage side or to the heating heat exchanger. Therefore, there is an advantage that the ventilation resistance is reduced.

[0005]

In the above-described air conditioning unit for a vehicle, there is a demand for an improvement in assembling of constituent members in conjunction with a demand for compactness. In particular, it is indispensable for the air mix door (slide plate) of the slide door device that the guide rail and the slide door can smoothly move relative to each other and that the slide driving force can be smoothly transmitted. In addition to the ease of assembly, it is necessary to be able to perform a reliable sliding operation. In particular, in an air conditioning unit through which air flows, dust and the like easily accumulate in the grooves of the guide rails, which may cause a problem in sliding of the slide pin on the slide door side or rolling of the roller,
It is necessary to remove dust and the like. Such a situation is not limited to the air conditioning unit for a vehicle, and the same applies to various devices that control the flow of air or the like using a sliding door.

The present invention has been made in view of such circumstances, and has as its object to provide a sliding door device capable of performing a smooth sliding operation.

[0007]

According to the first aspect of the present invention,
A frame portion having an opening, and a slide plate provided along one side surface of the frame portion and having a slide pin protrudingly provided to slide along a slide guide groove formed in the frame portion. A sliding door device provided with a dust discharge portion formed at an end of the slide guide groove.

According to the first aspect of the present invention, since the dust discharge portion is formed at the end of the slide guide groove, the dust is brought to the end of the slide guide groove as the slide pin slides. Is discharged from the dust discharge portion to the outside of the slide guide groove. For this reason, the slide pin accommodated in the slide guide groove slides smoothly on the inner wall of the slide guide groove. As a result, the opening and closing operation of the slide door device can be performed smoothly, and the opening area of the opening can be reliably controlled.

According to a second aspect of the present invention, there is provided the slide door device according to the first aspect, wherein the dust discharge portion is a notch formed at an end of the slide guide groove. I do.

Therefore, according to the second aspect of the invention, in addition to the operation of the first aspect, it is only necessary to provide a notch at the end of the slide guide groove when forming the slide guide groove. With a simple configuration, dust can be reliably eliminated.

[0011] Further, the invention according to claim 3 is based on claim 1.
The slide door device according to claim, wherein the dust discharge unit is:
The slide guide groove may be an inclined surface formed on an inner wall of a terminal portion.

Therefore, according to the third aspect of the present invention, in addition to the function of the first aspect of the present invention, since the inclined surface is formed at the end of the slide guide groove, the strength of the end of the slide guide groove is reduced. It has the effect of suppressing.

According to a fourth aspect of the present invention, there is provided the slide door device according to the first aspect, wherein the dust discharge portion is a groove extension formed at an end of the slide guide groove. And

According to the fourth aspect of the present invention, in addition to the operation of the first aspect of the present invention, by forming a groove extension at the end of the slide guide groove, dust accumulated in the slide guide groove is reduced. Because it can be approached to the extension,
It is possible to prevent dust from accumulating in a region where the slide pin of the slide guide groove slides. According to the fourth aspect of the invention, it is possible to prevent an excessive torque from being applied to the slide guide groove when the slide pin is overstroke.

Further, the invention according to claim 5 is the invention according to claim 1.
The slide door device according to claim, wherein the dust discharge unit is:
The slide guide groove may be a release end formed at an end portion.

Therefore, according to the fifth aspect of the invention, in addition to the operation of the first aspect, since the terminal end of the slide guide groove is the open end, dust or the like accumulated in the slide guide groove can be removed at the open end. It can be reliably eliminated. Also,
According to the fifth aspect of the invention, it is possible to prevent an excessive torque from being applied to the slide guide groove when the slide pin is overstroke.

According to a sixth aspect of the present invention, there is provided the slide door device according to any one of the first to fifth aspects, wherein the dust discharge portion is located below the opening / closing operation direction of the slide door. The slide guide groove is formed at a terminal end of the slide guide groove.

Therefore, in the invention described in claim 6, in addition to the effects of the inventions described in claims 1 to 5, the dust discharge portion is provided at the groove end portion located on the lower side in the opening / closing operation direction of the slide door. Since it is formed, dust and the like can be automatically guided to the dust discharge unit according to gravity with the sliding operation of the slide plate. Therefore, the invention according to claim 6 has an effect of enhancing the dust discharging effect.

[0019]

According to the first aspect of the present invention, the opening / closing operation of the slide door device can be performed smoothly, and the opening area of the frame opening can be reliably controlled.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, it is only necessary to provide a notch at the end of the slide guide groove when forming the slide guide groove. There is an effect that the cost of the door device can be reduced, and dust can be reliably removed with a simple configuration.

According to the third aspect of the present invention, in addition to the effect of the first aspect of the present invention, since the inclined wall is formed at the end of the slide guide groove, the strength of the end of the slide guide groove is reduced. It has the effect of preventing.

According to the fourth aspect of the present invention, in addition to the effect of the first aspect of the present invention, by forming a groove extension at the end of the slide guide groove, dust accumulated in the slide guide groove is reduced. Since it can be brought closer to the extension, there is an effect of preventing dust from accumulating in a region of the slide guide groove where the slide pin slides. Further, according to the fourth aspect of the present invention, it is possible to prevent the slide pin from hitting the slide guide groove, and prevent the slide pin and the terminal end of the slide pin guide groove from being damaged.

According to the fifth aspect of the present invention, in addition to the effect of the first aspect of the present invention, since the terminal end of the slide guide groove is an open end, dust or the like accumulated in the slide guide groove is removed by the open end. It can be reliably eliminated. Claim 5
According to the described invention, it is possible to prevent the slide pin from hitting the slide guide groove and prevent the slide pin and the terminal end of the slide pin guide groove from being damaged.

According to the invention of claim 6, according to claims 1 to
In addition to the effect of the invention according to claim 5, since the dust discharge portion is formed at the groove end portion located on the lower side in the opening and closing operation direction of the slide door, dust and the like are generated as the slide plate slides. It can be quickly guided to the dust discharge portion according to gravity, and the time for dust and the like to intervene between the slide guide groove and the slide pin can be shortened, and the inner wall of the slide guide groove and the peripheral surface of the slide pin are damaged. Can be further suppressed.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of a sliding door device according to the present invention will be described below based on embodiments shown in the drawings.
Each embodiment described below is an example in which the present invention is applied to an air conditioner for a vehicle.

(Embodiment 1) FIG. 1 is a schematic sectional view showing Embodiment 1 of an automotive air conditioner to which a slide door device of the present invention is applied, and FIG. 2 is a slide door as a slide plate and its drive. FIG. 3 is a schematic perspective view showing the slide door with a part cut away, FIG. 4 is a horizontal sectional view showing the slide door and the slide mechanism, and FIG. 6 is an explanatory view showing a slide guide groove, and FIG. 7 is a perspective view showing an end portion of the slide guide groove.

As shown in FIG. 1, the air conditioner for a vehicle has a case C in which a cooler unit 1 and a heater unit 2 are arranged side by side in the front-rear direction of the vehicle and integrated to shorten the size in the front-rear direction of the vehicle. An evaporator 3 is provided in the upstream air passage of the case C, and a heater core 4 is provided in the downstream air passage. The air path in the case C is formed by combining a pair of case members divided into two in the vertical direction.

The air flow flowing down from the upstream air passage is heated through the heater core 4 by sliding a slide door 5 provided between the evaporator 3 and the heater core 4 via a slide mechanism 6. The air is selectively flown into the hot air passage 7 side and the bypass passage 8 side bypassing the heater core 4, or is branched at a predetermined ratio into each of the hot air passage 7 side and the bypass passage 8 side to flow air. It is designed to shed. In the figure, reference numeral 9 denotes a slide door device, and the slide door device 9 includes the above-described slide plate 5 and a frame unit 10 described later.

The hot air that has passed through the hot air passage 7 and the cold air that has passed through the bypass passage 8 are mixed in the mix zone 11. The mixed air is brought to a predetermined temperature, and various air outlets 12a opened in the case C according to various air distribution modes.
From 14a to 14a, depending on the degree of opening of various mode doors 12 to 14 provided at these outlets so as to be openable and closable, the air is distributed toward the vehicle interior, or is kept as cold air or hot air without being mixed. It is blown out. Here, each of the outlets 12a to 1
The temperature of the cool air or the warm air blown out from 4 a is adjusted by the vertical position of the slide plate 5.

As shown in FIG. 1, the length of the slide plate 5 in the vertical direction is approximately half the distance between the upper edge of the upstream air passage and the lower edge of the downstream air passage. Almost case C
Is provided from one side to the other side. The frame portion 10 includes one side wall and the other side wall on both sides of the case C, an upper frame portion 15 extending downward from the upper wall, and a lower frame portion 16 extending from the lower wall to stand up from the lower wall. An opening 10a surrounded by these is formed as an air circulation port.

As shown in FIGS. 2 and 3, the slide plate 5 generally has a flat portion 5a on the outer periphery and a dome-shaped bulging portion 5b on the inner side. Is adhered. As shown in FIGS. 3 and 5 (a), the seal member 17 has thick portions 17a formed at both ends.

A pair of reinforcing plates 18 having a reinforcing function and an airflow guiding function are provided at the side end portions of the slide plate 5. The section between the reinforcing plate 18 and the side end of the slide plate 5 has an arc-shaped cross section.
A rack 21 meshed with a sliding door driving gear 20 rotated by a driving unit 19 (see FIG. 1) is formed continuously from the upper end to the lower end.

At four upper and lower side ends of the slide plate 5, slide pins 23 which are rotatably fitted into slide guide grooves 22, which will be described later, formed on a side wall of the frame 10 of the case C project. Has been established. This slide pin 2
Numeral 3 may be a cylindrical roller that rolls in some cases.

The slide plate 5 is formed in an arc shape so as to be in contact with the slide door driving gear 20. This arc shape is "concave" in the air flow direction as shown in the figure. . If the air flow is made concave as described above, the air flow guides the air flow to the heater core 4 and to the bypass passage 8, and exhibits a guide function without airflow resistance, so that the air flow guide characteristics are further improved.

The slide mechanism 6 for operating the slide plate 5 is engaged with a slide guide groove 22 formed on the side wall of the case C and a rack 21 formed on the inner surface of the slide plate 5 as shown in FIG. A pair of sliding door driving gears 20 described above, and a shaft 2 connecting these gears 20 to each other.
And 4. A drive unit 19 (see FIG. 1) for rotating the gear 20 is attached to the side wall of the case C. Further, as the drive unit 19, a motor actuator or the like in which an electric motor, a reduction gear, and the like are accommodated in a casing is used.

Here, as shown in FIG. 6, the slide guide groove 22 is formed so as to have a radius of curvature r substantially equal to the radius of curvature of the slide plate 5 and supports the four slide pins 23 of the slide plate 5. , The slide plate 5 operates without backlash even when receiving the wind pressure. The slide guide groove 22 is formed in a pair of upper and lower portions formed in an arc shape on each of the left and right side walls, and an upper slide pin 23 is provided.
Indicates the upper slide guide groove 22 and the lower slide pin 2
Reference numerals 3 are fitted in the lower slide guide grooves 22, respectively. In addition, the terminal end portion 22a of each slide guide groove 22 is bent obliquely rearward (downstream side), and the slide plate 5 moves in the direction intersecting the slide direction at the slide end position, that is, a predetermined arc shape in the illustrated embodiment. It is designed to move diagonally backward from the sliding direction.

As a result, the sealing member 17 is connected to the upper frame 15 or the lower
And pressurized to improve the sealing performance. In other words, the sealing member 17 does not always contact the upper frame portion 15 or the lower frame portion 16 but only comes into contact when necessary, so that the sealing property is prevented from lowering for a long time and the sealing property is improved. In addition, there is no friction when operating the door, and the operation force is small, which is preferable.

In particular, in the first embodiment, a notch 22b as a dust discharge portion is formed at the lower end portion 22a of each of the slide guide grooves 22, 22. In the present embodiment, the notch 22b is formed in the end portion 22a. However, the width of the notch 22b may be smaller than the width of the intermediate portion of the slide guide groove 22, or as shown in FIG. Alternatively, the end portion may be cut out so as to be an open end as long as the width of the intermediate portion. By forming the notch 22b in this manner, when dust or the like enters the slide guide groove 22, the dust or the like can be discharged to the outside from the notch 22b by the sliding operation of the slide pin 23. . FIG. 7 is a perspective view showing a state in which the slide guide groove 22 is broken from the case C. As described above, the notch 22b formed at the end portion 22a of the slide guide groove 22
Has an action of discharging dust and the like to the outside of the case C, so that the case C is not contaminated again by the discharged dust and the like.

Rack 21 of slide door drive gear 20
As shown in FIG. 5, the tooth 25 formed at the end or at the vicinity thereof moves the slide plate 5 in the direction intersecting the slide direction at the end position of the slide. High teeth 25 having a higher tooth height than other teeth 25b
By rotating the gear 20, the high teeth 25a press the slide plate 5 via the rack 21 formed on the slide plate 5 to move along the slide guide groove 22.

On the other hand, the rack 2 formed on the slide plate 5
As shown in FIG. 5 (a), 1 is a high tooth 21a whose upper and lower ends or the vicinity thereof have a higher tooth height than other teeth 21b. That is, the tip of the high tooth 21a at the end of the rack 21 is configured such that the radius from the rotation center O gradually changes, and meshes with the high tooth portion 25a of the tooth portion 25 reliably. Along the slide guide groove 22.

In this case, thick portions 17a are provided at both end portions of the seal member 17, and the thick portions 17a are provided before the slide pin 23 hits the upper end portion 22a of the slide guide groove 22.
Contact, the impact of the slide plate 5 is absorbed, and generation of abnormal noise can be prevented.

In addition, instead of providing the thick portions 17a at both end portions of the seal member 17, as shown in FIGS. 5B and 5C, the overlaid portions 21a are provided at both end portions of the slide plate 5. The same effect can be obtained by providing.

As described above, according to the first embodiment, since the notch 22b is formed at the end portion 22a of the slide guide groove 22, dust and the like can be discharged to the outside of the case C. Therefore, the first embodiment has an advantage that the air circulation space is not again polluted by the discharged dust or the like. In addition, since the accumulation of dust and the like in the slide guide groove 22 is prevented, it is possible to suppress the deterioration of the door sealability. Further, as shown in FIG. 8, if the terminal end 22 a of the slide guide groove 22 is set as the free end, the overstroke of the slide pin 23 can suppress strong interference with the terminal end 22 a of the slide guide groove 22. Damage to the slide pin 23 and the terminal end 22a of the slide guide groove 22 can be prevented.

Also, the provision of the thick portion 17a on the seal member 17 allows the slide pin 23 to
2 end portion 22a or thick portion 1 before hitting the inner surface.
7a contacts and absorbs the impact, so that generation of abnormal noise can be prevented.

(Embodiment 2) FIGS. 9 (a) and 9 (b)
6 shows a second embodiment of the slide door device according to the present invention, and is different from the first embodiment in that the slide guide groove 2
2 is different. In the second embodiment, as shown in FIG.
a is formed with an inclined surface 22c.
Dust can be removed outside the groove. In the present embodiment, the end portion 2 of the slide guide groove 22
Since the structure 2a is closed, there is an advantage that the structural strength of the slide guide groove 22 is high. The other configuration of the second embodiment is the same as that of the first embodiment, and the description is omitted.

Although the first and second embodiments have been described above, the present invention is not limited to these, and various changes accompanying the gist of the configuration are possible. For example, in each of the above-described embodiments, the notch 22b or the inclined surface 22c is provided at one of the end portions 22a of the slide guide groove 22.
However, it is a matter of course that these dust discharge portions may be formed at both end portions 22a, 22a of the slide guide groove 22, respectively. Further, the dust discharge portion may be formed with a notch 22b on one or both side surfaces which are the moving surfaces of the slide guide groove 22 in which the slide pin 23 moves.

In the above embodiments, the slide plate 5 is applied to an air conditioner in which the slide plate 5 is arranged vertically, but the present invention is also applicable to an air conditioner in which the slide plate 5 is arranged horizontally. Of course it is possible. It is also possible to use a flat slide plate.

Further, the sliding door device 9 according to the present invention can be used as an opening / closing means of an air introducing device other than the air conditioner. In each of the above embodiments, the frame portion 10 is formed integrally with the case C (although it is a part of the case C).
A frame portion formed separately from the above may be separately prepared.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an air conditioning unit for a vehicle, showing a first embodiment of a slide door device according to the present invention.

FIG. 2 is a diagram illustrating a state in which a slide plate, a driving gear, and a shaft thereof according to the first embodiment are viewed from an upstream side of an air flow.

FIG. 3 is a perspective view showing a state in which a slide plate according to the first embodiment is partially broken.

FIG. 4 is a cross-sectional view illustrating a slide plate and a slide guide groove according to the first embodiment.

5A is a sectional view taken along line AA of FIG. 4, and FIGS.
Is a modified example.

FIG. 6 is an explanatory diagram illustrating a slide guide groove according to the first embodiment.

FIG. 7 is a perspective view showing a state where a main part of the slide guide groove of the first embodiment is broken.

FIG. 8 is a perspective view showing a modification of the slide guide groove according to the first embodiment in which a main part is broken.

9A is a side view showing a main part of a sliding door device according to a second embodiment of the present invention, and FIG. 9B is a sectional view taken along line BB of FIG. 9A.

[Explanation of symbols]

 Reference Signs List 5 slide plate 9 slide door device 10 frame 10a opening 22 slide guide groove 22a terminal end 22b notch 22c inclined surface 23 slide pin

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Toshio Komatsubara 5-24-15 Minamidai, Nakano-ku, Tokyo Inside Calsonic Corporation (72) Inventor Akiyo Tsurushima 5-24-15 Minamidai, Nakano-ku, Tokyo F-term in Calsonic Co., Ltd. (reference) 3L011 BH00

Claims (6)

[Claims] 1. A frame portion (10) having an opening (10a) formed therein, and a slide guide groove disposed along one side of the frame portion (10) and formed in the frame portion (10). Slide pin (2) sliding along (22)
3) A slide door device (9) including a protruding slide plate (5), wherein a dust discharge portion (22b, 22c) is formed at an end portion (22a) of the slide guide groove (22). A sliding door device (9), characterized in that: 2. A sliding door device (9) according to claim 1, wherein:
The slide door device (9), wherein the dust discharge portion (22b, 22c) is a notch (22b) formed at an end portion (22a) of the slide guide groove (22). . 3. The sliding door device (9) according to claim 1, wherein:
Wherein the dust discharge portion (22b, 22c) is an inclined surface (22c) formed on an inner wall of a terminal end portion (22a) of the slide guide groove (22). ). 4. The sliding door device (9) according to claim 1, wherein:
The slide door device, wherein the dust discharge portions (22b, 22c) are groove extensions formed at the end portions (22a) of the slide guide grooves (22). 5. A sliding door device (9) according to claim 1, wherein:
The slide door device (9), wherein the dust discharge portion (22b, 22c) is a release end (22b) formed at an end portion (22a) of the slide guide groove (22). . 6. The sliding door device (9) according to claim 1, wherein the dust discharging portion (22b, 22c) is configured to open and close the sliding plate (5) in an opening / closing operation direction. A slide door device (9), which is formed at an end portion (22a) of the slide guide groove (22) located on a lower side.