JP4409505B2 - Sliding door device - Google Patents

Description

  The present invention relates to a slide-type door device in which a door is slid when an opening having an opening surface in at least a part of an object is selectively opened and closed.

Conventionally, in a vehicle such as an automobile, a box-like storage body having an opening is provided integrally with the body, and a shutter-like door is provided in the opening so that the stored article does not pop out due to vibration during driving. There are some (see, for example, Patent Document 1).
Microfilm of actual application No. 61-81020

  In the above-mentioned storage body, it is used as a glove box, and the door hits the occupant's knees by sliding the shutter-like door to open and close to avoid protrusion of the door to the occupant side, etc. The inconvenience is avoided.

  On the other hand, in a general shutter device, a plurality of strip-shaped plate members connected to each other in a small width direction so as to be bent together, and a single door body, and both longitudinal end portions (sliding contact portions) of the strip-shaped plate members. And a pair of left and right guide rails for supporting and guiding. And the guide rail is being fixed to the main body (casing etc.). This structure is the same as that in Patent Document 1.

  However, there is a gap between the guide rail and the sliding contact portion of the door to enable sliding. In the automobile, the vehicle body vibrates due to the unevenness of the road surface during traveling. Therefore, there is a problem that when the door vibrates due to the gap, an abnormal noise is generated and the sense of quality is impaired. In order to prevent the play due to the gap, dimensional adjustment after assembling can be considered, but high-precision adjustment is required, and the apparatus becomes expensive.

In order to solve such a problem and to realize a slide type door device that can easily prevent backlash and can be provided at low cost, in the present invention, a plurality of plate-like bodies (3a) are connected to each other. both ends of the flexibly linked door and (3), the door (3) the direction of the plate-shaped body perpendicular to the sliding direction of the door (3) so as to allow the slide to the connecting direction (3a) A sliding door device having a pair of guide rails (5) for slidably guiding the parts, wherein the pair of guide rails (5) are respectively perpendicular to the sliding direction on the base member (2). displacement freely mounted, and with is spring biased by a spring (11) to abut in a direction perpendicular to each of the sliding direction to the end portions of the plate-like body (3a), said pair of guide rails (5 It said spring (11) the position of the spring-loaded by relative was assumed to be provided staggered with respect to the sliding direction the both guide rails (5).

In particular, while the engaging piece (7) is provided on the front Symbol guide rail (5) and said base member (2), the engagement hole (9) which engages with said engaging piece (7) on the other Preferably, the guide rail (5) is prevented from coming off from the base member (2) by engagement between the engagement piece (7) and the engagement hole (9). In addition, at least one of a portion (4) guided by the guide rail (5) of the plate-like body (3a) and a portion of the guide rail (5) in sliding contact with each other has a tapered shape (6a). And good. The guide rail (5) has a curved portion (5a), and a connecting member (12) for preventing the curved portions (5a) of the guide rail (5) from opening is provided. And good.

  As described above, according to the present invention, in the case where a pair of guide rails for supporting and guiding both side edges of the sliding door formed by connecting a plurality of plate-like bodies is provided, at least one guide rail is provided. Since the bullet is energized from the side of the sliding door, it is possible to prevent backlash between the guide rails of the sliding door. In addition, by appropriately changing the springs with different spring constants, it is possible to arbitrarily set the elastic urging force against the guide rail. Can be raised. Further, individual differences (dimension differences) due to assembly errors and the like can be easily absorbed by the deflection of the spring, so that it is not necessary to increase the machining accuracy of each part so that the machining cost can be reduced.

  In particular, by arranging the bullet urging positions alternately between the two guide rails, the rattling absorption displacements of the two guide rails are not synchronized in the sliding operation of the door, thereby further enhancing the rattling prevention effect. In addition, the cost can be increased because the effect can be achieved without increasing the number of springs.

  In addition, an engaging piece is integrally formed on the guide rail for assembly to the base member of the guide rail, and an engaging hole is provided in the base member to engage with the engaging piece against the elastic biasing force against the guide rail. Accordingly, it is possible to prevent the guide rail from being detached from the elastic urging force as well as being assembled to the base member.

  In addition, since at least one of the sliding contact portions of the door and the guide rail has a tapered shape, even if the sliding contact portion of both the door and the guide rail shifts from the design position due to a processing error or the like, the shift is prevented. Since it can absorb by the displacement with respect to the taper direction, rattling of the guide portion can be eliminated.

  In addition, in the case where the guide rail is provided with a bent portion, there is a possibility that the gap between both guide rails may open due to a change in sliding resistance in the portion of the door that runs through the bent portion. By preventing the door from being opened, it is possible to prevent the door from coming off.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of a storage box for automobiles to which the present invention is applied. This storage box is installed in a vertically placed state as shown in the figure, for example, on the side of a vehicle interior. The illustrated storage box includes a rectangular box-shaped main body 1 formed by molding a synthetic resin material, and a pair of left and right base members 2 as base members that are screwed to the left and right side surfaces of the main body 1 in the drawing. The mounting arm 2a that protrudes laterally from the side plate 2 is screwed to a body panel (not shown) and fixed to the vehicle body.

  The opening 1a of the main body 1 that faces the vehicle interior in the attached state is opened and closed by a shutter 3 as a sliding door as shown in FIG.

  As shown in FIG. 3, the shutter 3 is formed so that a plurality of horizontally long panels 3 a as panels are connected in the small width direction to form one door. The connection structure of the panels 3a is not particularly described in detail, but as described in the background art, a pivot is provided on one of the adjacent panels 3a and the pivot is supported on the other in a freely rotatable manner. There are various types, such as those that are connected with each other, and those that are integrally formed of a synthetic resin material and that can be bent with a thin connection portion, and any of them may be used. In FIG. 3, the whole is integrally formed, and the panels 3a are connected by a thin-walled portion 3b formed integrally.

  Cylindrical boss-shaped guide shafts 4 are integrally formed on both end surfaces of the panel 3a in the longitudinal direction as guided portions protruding sideways (longitudinal direction). A pair of guide rails 5 for guiding the guide shafts 4 on both sides of each panel 3a are assembled to the both side plates 2 as shown in FIG. 4 and extend symmetrically on both side edges of the opening 1a and to the vehicle body. In the attached state, the whole has a curved portion 5a formed so as to bypass the bottom side of the bottom of the main body 1 and reach the back side.

  Next, how to attach the guide rail 5 to the side plate 2 will be described. As shown in FIG. 5, the guide rail 5 is provided with a guide groove 6 having a U-shaped cross section that opens to the inside of the storage box, and the guide shaft 4 of the panel 3 a protrudes into the guide groove 6. . One of the opposing surfaces located in the vertical direction in FIG. 5 of the guide groove 6 (front and back direction in the opening 1a) is formed as a tapered surface 6a that expands toward the inside of the storage box.

  Further, as shown in FIG. 3, the guide rail 5 has a plurality of elastically deformable pieces 7 and pins 8 that can be elastically deformed so that the guide rail 5 protrudes to a side opposite to the guide groove 6 at a plurality of appropriate positions. It is provided by integral molding. Engaging claws 7a having a triangular cross-sectional shape sharp in the protruding direction are formed on the protruding end portions of the pair of elastic engaging pieces 7 so as to protrude on opposite sides. Note that the compression coil spring 11 is coaxially surrounded by the pin 8 as shown in FIGS. 3 and 4.

  In the side plate 2, an engagement hole 9 is provided at a position corresponding to the elastic engagement piece 7, and a bottomed cylindrical portion 10 is provided at a position corresponding to the pin 8. As shown by the arrow A in FIG. 3, the elastic engagement piece 7 is passed through the engagement hole 9 from the inside of the storage box of the side plate 2, and the engagement claw 7 a comes out to the penetration direction side of the side plate 2 in the penetration state. By engaging with the joint hole 9 (the outer peripheral portion of the engagement hole 9 of the side plate 2), the guide rail 5 is prevented from coming off from the side plate 2. The interval between the back surface of the guide rail 5 facing the protruding side of the elastic engagement piece 7 and the engagement claw 7a is set longer than the thickness of the side plate 2 (length in the axial direction of the engagement hole 9). The guide rail 5 can be displaced in the direction in which it is in contact with and away from the side plate 2 by the length.

  In the assembly of the guide rail 5 to the side plate 2 by the elastic engagement piece 7, the compression coil spring 11 held by the pin 8 is received in the bottomed cylindrical portion 10 (see FIG. 4). The spring 11 is compressed in the received state, and the guide rail 5 is elastically biased toward the inside of the storage box as indicated by an arrow B in FIG. A hole 10a for positioning the protruding end of the pin 8 in a penetrating state is provided at the bottom of the bottomed tubular portion 10, and the guide rail 5 is positioned by the engagement between the pin 8 and the hole 10a. ing.

  The guide rail 5 assembled to the side plate 2 in this way is elastically biased in the direction away from the side plate 2 (inside the storage box) by the spring 11 as described above. As shown in FIG. 5, the protruding end portion is displaced until it comes into contact with the tapered surface 6a. Since the width of the taper surface 6a and the opposing surface 6b in the guide groove 6 changes with respect to the depth direction of the guide groove 6 (the axial direction of the guide shaft 4), the dimensions of the guide shaft 4 may vary between lots due to processing errors or the like. Even if there is a difference, it can be dealt with by changing the contact position between the guide shaft 4 and the tapered surface 6a. As a result, the guide shaft 4 and the guide groove 6 are always in a contact state, that is, a slidable contact state, even if there is a slight dimensional difference from the design value of the guide shaft 4 and the guide groove 6.

  As described in the background art, when a dimensional difference occurs between the guide shaft 4 and the guide groove 6, a backlash occurs between the two, which causes the shutter 3 to rattle with respect to the guide rail 5. When the guide rail 5 is fixed to the base member (the side plate 2 in the illustrated example), the above-described backlash occurs, and in the case of a vehicle, it may cause abnormal noise due to vibration during traveling.

  On the other hand, since the guide rail 5 is elastically biased in the direction shown by the arrow B in FIGS. 4 and 5, the guide shaft 4 hits the guide groove 6, and the guide shaft 4 is in the direction of the arrow B. There is no play between the guide shaft 4 and the guide groove 6 in the axial direction. In the illustrated example, the above-mentioned state can be obtained when the corner (edge) of the protruding end of the guide shaft 4 abuts in the middle of the tapered surface 6a. However, in the case of a U-shaped groove that becomes a parallel surface, the guide shaft 4 is placed on the bottom surface of the groove. However, the shape of the guide groove is not limited with respect to prevention of backlash in the axial direction of the guide shaft 4.

  Then, as shown in the illustrated example, the guide shaft 4 is brought into contact with the tapered surface 6a, so that the guide shaft 4 is sandwiched between the tapered surface 6a and the opposing surface 6b. No backlash (in the direction of arrow C in FIG. 5). This prevents backlash in the biaxial direction (arrow B / C directions) perpendicular to the sliding direction of the shutter 3 (arrow S direction in FIG. 4) in combination with the above, and is caused by vibration during vehicle travel. No abnormal noise is generated.

  As shown in FIG. 5, by forming the protruding end portion of the guide shaft 4 in a truncated cone shape, the guide shaft 4 is provided with a tapered portion 4a as a tapered shape. In that case, the guide groove 6 is, for example, a U-shaped groove having a parallel surface, and the opening width is larger than the tip diameter of the taper portion 4a and smaller than the maximum diameter (the shaft diameter of the guide shaft 4). Thus, the same effects as described above can be obtained.

  Further, since the sliding resistance between the guide shaft 4 and the guide groove 6 can be adjusted by the load by the spring 11, the load can be changed by adjusting the spring constant or the compression amount of the spring 11. A feeling of operation can be made into a suitable state. As a result, it is possible to increase the value of the product with a sense of quality.

  Further, as shown in FIG. 4, the load points are changed to the left and right with respect to the displacement of both guide rails 5 by staggering the positions where the springs 11 are provided on both sides with respect to the sliding direction S of the shutter 3. Since they are not synchronized, the rattling prevention effect can be further enhanced. Similarly, it is possible to further improve the operational feeling by adjusting the absorption range of the dimensional difference of each component and the sliding resistance. In this case, the number of springs 11 may be the same or substantially the same on both sides, so that the above effect can be achieved without increasing the number of springs 11 when the springs 11 are arranged symmetrically. The cost is not high because it is obtained.

  As shown in FIG. 3, a connecting member 12 is provided between both side plates 2, for example, an iron plate that is bent to form an L-shaped cross-section. The connecting member 12 is sized to be hidden by the fully opened shutter 3 shown in FIG. 2, and the attachment position to the side plates 2 is in the vicinity of the curved portion 5 a of the guide rail 5. Projecting engagement claws 12a are formed at appropriate positions on both side edges of the connecting member 12, and both side plates are bent by penetrating through locking holes 2b provided at corresponding positions of the side plates 2. Opening between two corresponding parts is prevented.

  In the case where the curved portion 5a of the guide rail 5 is located on the lower side of the main body 1 as in the illustrated example, when the corresponding portions of the side plates 2 extend from the main body 1 in an ear shape, The ear-shaped portion is likely to be displaced, and there is a possibility that the curved portion 5a is opened as the shutter 3 slides. Although the rigidity can be increased by increasing the thickness of the corresponding wall on the main body 1 side, there arises a problem that the material is wasted.

  On the other hand, the connecting member 12 is attached as described above to prevent the opening of the portion that supports the curved portion 5a of the both side plates 2, thereby preventing the curved portion 5a of the guide rail 5 from being opened easily and inexpensively. be able to.

  Since the slide type door device according to the present invention can easily and reliably prevent the backlash between the sliding door and the guide rail, the sliding type door device is not limited to the door of the vehicle equipment, and can be used as a so-called shutter. Useful for equipment.

1 is an external perspective view of an automobile storage box to which the present invention is applied. It is a figure corresponding to FIG. 1 which shows the state which opened the door. It is an assembly exploded perspective view showing a guide rail portion. It is a principal part fracture | rupture front view which shows the relationship between a door and a guide rail partially. It is the principal part expanded sectional view seen along the arrow VV line of FIG.

Explanation of symbols

2 Side plate (base member)
3 Shutter (door)
3a Panel (plate)
5 Guide rail 5a Curved portion 7 Engagement piece 6a Tapered shape 9 Engagement hole 11 Spring 12 Connecting member

Claims (4)

A door in which a plurality of plate-like bodies are connected to be able to bend each other , and both ends of the plate-like body in a direction orthogonal to the sliding direction of the door are slidably guided so that the door can slide in the connecting direction. A sliding door device having a pair of guide rails,
The pair of guide rails are attached to a base member so as to be freely displaceable in a direction perpendicular to the sliding direction , and by springs so as to abut on both ends of the plate-like body in a direction perpendicular to the sliding direction, respectively. Spring -biased ,
The slide type door device , wherein the spring biasing positions of the springs with respect to the pair of guide rails are provided alternately with respect to the sliding direction in the two guide rails .   An engagement piece is provided on one of the guide rail and the base member, and an engagement hole that engages with the engagement piece is provided on the other, and the engagement piece is engaged with the engagement hole. The sliding door device according to claim 1, wherein the guide rail is prevented from coming off from a base member.   3. The slide mold according to claim 1, wherein at least one of a portion of the plate-like body guided by the guide rail and a portion of the guide rail in sliding contact with each other has a tapered shape. Door device. The guide rail has a curved portion;
The sliding door device according to any one of claims 1 to 3, wherein a connecting member for preventing the curved portions of the guide rails from opening is provided.

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