JP2000230365A - Sliding door opening and closing mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fully openable opening and closing mechanism by providing first and second outside rollers different in the position of the circumferential direction for a guide rail on a door, and providing first and second recess parts fitted by the outside roller on the guide rail. SOLUTION: An outside roller and an inside roller are provided on a first roller group 4 and a second roller group 5. The outside roller of the second roller group 5 is arranged in a upper side than the outside roller of the first roller group 4 and than the circumferential direction of a guide rail 3. The outside roller and the inside roller are attached to a door 2 through an attaching mechanism in a substantially orthogonal state. In the orthogonal cut parts of a first recess part 31 and a second recess part 32 on the guide rail 3, the outside roller of the first roller group 4 and the outside roller of the second roller group 5 are provided at a position fitted in the radial direction of the guide rail 3. Thereby on the way of the slide of the door 2, the outside roller of the first roller group 4 can pass without being fitted on the second recess part 32. Thus, the door 2 for the body can be fully opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a sliding door opening / closing mechanism used at an entrance facing a narrow passage of a constant temperature and humidity chamber.

[0002]

2. Description of the Related Art A conventional sliding door opening / closing mechanism will be described with reference to FIGS. FIG. 9 shows a front view of a main part of a conventional sliding door opening / closing mechanism 1. The conventional sliding door opening / closing mechanism 1 mainly includes a door 2 having a guide rail 3 having a rectangular cross section attached to a main body (not shown) and a first roller 4 and a second roller 5 movable on the guide rail 3. Consists of The first roller 4 and the second roller 5 are connected to the door 2 via roller shafts 44 and 55 and mounting rods 8 and 9, respectively.
Attached to. Note that the door 2 moves in the left-right direction in FIG. In addition, the guide rail 3 includes:
At the time of closing the door, a first concave portion 31 and a second concave portion 32 for fitting the first roller 4 and the second roller 5 in the direction of the main body (not shown in FIG. 9) are provided respectively. . As shown in FIG. 10, the shape of the first roller 4 is such that the center of the roller in the width direction (in FIG. 10, the left and right direction in FIG. 10) is the most depressed and slides while fitting on the guide rail 3 having a square cross section. It is possible. The second roller 5 also has the same structure. On the other hand, as shown in FIGS. 9 and 11, the first concave portion 31 is provided with a notch so as to fit in the main body direction (not shown) (in the lower left direction in FIG. 11) when the first roller 4 is located in the concave portion 31. There is a structure. The structure of the second recess 32 is the same as the structure of the first recess 31.
The interval between the first concave portion 31 and the second concave portion 32 is the same as the interval between the first roller 4 and the second roller 5.

A method of using the sliding door opening / closing mechanism 1 having the above configuration will be described. When the door is closed, the operator holds the handle 21 and slides the door 2 along the guide rail 3. When located in front of a main body (not shown), the first roller 4 and the second roller 5 fit into the first concave portion 31 and the second concave portion 32 on the guide rail 3, respectively. As a result, the door 2 moves downward in a diagonal direction toward the main body (not shown), and the main body and the packing 25 of the door come into close contact with each other, whereby the door 2 is closed and the container inside the main body is hermetically stored. .

[0004]

However, in the conventional sliding door opening / closing mechanism, when the door is opened, that is, when the door 2 is closed via the main body and the packing 25, the door 2 is pulled up, that is, guided. When the first roller 31 and the second roller 32 are pulled up from the first concave portion 31 and the second concave portion 32 of the rail 3 to the center of the guide rail 3 and slide on the guide rail 3, as described above, The one recess 31 and the second recess 32 have the same structure, and the first roller 4 has the same configuration as the second roller 5. Therefore, when the door 2 is opened and slid, when the first roller 4 comes to the position of the second concave portion 32 on the guide rail 3, the first roller 4 fits into the second concave portion 32, and the door 2 is moved. It cannot be fully opened. Therefore, it is difficult and inconvenient to handle the stored items inside.

Accordingly, the present invention has been made to solve the above-mentioned problems, and by making the structure of the first roller and the second roller different from each other, when the door is opened, the rollers move on the guide rails. It is an object of the present invention to provide a sliding door opening / closing mechanism which can slide and can fully open a door without being fitted into a concave portion of the door.

[0006]

To achieve the above object, a sliding door opening / closing mechanism according to the present invention comprises a sliding door opening / closing mechanism for opening and closing a door with respect to a main body.
It has a first roller group and a second roller group attached to the guide rail and the door having a circular cross section attached to the main body, and the first roller group and the second roller group are each
A roller shaft has an outer roller and an inner roller that are substantially orthogonal to each other, and the first and second roller groups have different circumferential positions of the outer roller with respect to the guide rail. When the door is closed, each of the outer rollers of the first and second roller groups has a first concave portion and a second concave portion fitted in the center axis direction of the guide rail. Here, the “inner roller” refers to a roller on the main body side, and the “outer roller” refers to a roller located on the opposite side to the main body.

It is preferable that the length of the inner roller in the roller axis direction is longer than the length of the outer roller in the roller axis direction.

It is preferable that the door is provided with a cushioning member for sealing between the main body and the door when the door is closed. Here, the "buffer member" refers to, for example, a so-called packing or the like.

Preferably, the door is provided with an observation window through which the inside of the main body can be observed.

The door is preferably provided with an opening handle for opening and closing the door.

It is preferable that a floor roller is provided at the bottom of the door. "Floor on the floor" refers to a roller for sliding the door on the floor.

Preferably, the recess has a parallel cut portion in a direction substantially parallel to the direction of the roller axis of the outer roller and a vertical cut portion in a direction substantially perpendicular to the roller axis of the outer roller.

It is preferable that the parallel cut portion is formed in a gently curved shape so that the outer roller can be smoothly fitted into the concave portion.

It is preferable that the vertical notch is formed in a planar shape.

Preferably, the guide rail is formed by fitting a camshaft provided with the concave portion. The "camshaft" refers to one obtained by dividing a guide rail into a plurality of parts, and having a connecting protrusion or recess at each end. The phrase “configured by fitting a camshaft” means that a single guide rail is formed by fitting a plurality of camshafts into protrusions and recesses provided at both ends thereof.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on embodiments with reference to the drawings.

The sliding door opening / closing mechanism 1 shown in the embodiment of FIG. 1 mainly includes a guide rail 3 attached to a main body (not shown) and a first concave portion 3 provided in the guide rail 3.
The first and second concave portions 32, the door 2, and the first roller group 4 and the second roller group 5 attached to the door 2.

Next, referring to FIGS. 2 to 6, the first and second concave portions 31 and 32 of the guide rail 3, which are the point portions of the sliding door opening and closing mechanism 1 according to the present invention, and the first roller group 4 will be described. The detailed configuration of the second roller group 5 will be described.

FIG. 2 is a sectional view of a main part when the first roller group 4 attached to the door 2 via an attachment mechanism (not shown) passes over the second concave portion 32 of the guide rail 3. FIG. 2 is a cross-sectional view of a main portion when the first roller group 4 reaches the first concave portion 31 by further moving the main roller 2, and FIG. 4 similarly shows a main portion when the second roller group 5 reaches the second concave portion 32. It is sectional drawing. The guide rail 3 is mounted on a main body (not shown) via a mounting rod 8.

Both the first roller group 4 and the second roller group 5 are outer rollers 41, 51 and inner rollers 42,
52, including two types of rollers. These rollers, that is, the outer rollers 41 and 51 and the inner rollers 42,
The 52 roller shafts (43 and 44, 53 and 54) are substantially orthogonal to each other, and the roller shaft is mounted on the door 2 via a mounting mechanism (not shown). The inner roller 42 of the first roller group 4 and the inner roller 52 of the second roller group 5 have the same configuration. That is, the rollers have the same width and size, and the roller shafts 44 and 54 have the same arrangement. The width of the inner rollers 42 and 52 is slightly wider than the outer rollers 41 and 51.

The difference between the first roller group 4 and the second roller group 5 lies in the position of each outer roller 41,51. That is,
The outer roller 51 of the second roller group 5 is arranged at a position higher than the outer roller 41 of the first roller group 4 in the circumferential direction with respect to the guide rail 3. That is, although the configuration itself of the outer roller 51 and the roller shaft 53 and the outer roller 41 and the roller shaft 43 is the same, the position of the outer roller 51 with respect to the guide rail 3 is slightly smaller than the position of the outer roller 41 with respect to the guide rail 3 in the drawing. It's up to the top.

As described above, between the first roller group 4 and the second roller group 5, each outer roller 4
Along with the circumferential positions of the first and the first 51 being different, the configuration of the first recess 31 and the second recess 32 on the guide rail 3 is different. That is, as shown in FIGS. 3 and 4, the first concave portion 31 includes a vertical cut portion 311 in a direction perpendicular to the roller shaft 43 and a parallel cut portion 312 in a direction parallel to the roller shaft 43. 32 includes a vertical cut portion 321 in a direction orthogonal to the roller shaft 53 and a parallel cut portion 322 in a direction parallel to the roller shaft 53, but the positions of the cut portions are different. That is, the orthogonal cut portion 311 of the first concave portion 31
Means that the outer rollers 41 of the first roller group 4 are
In the radial direction (that is, in the direction of the center point of the circular cross section) of the second concave portion 32
The vertical notch 321 of the outer roller 5 of the second roller group 5
1 is provided at a position where it can be fitted in the radial direction of the guide rail 3 (that is, in the direction of the center point of the circular cross section).

Due to the difference between the vertical notches 311 and 321, the configuration of the parallel notches 312 and 322 is also different. That is, as shown in FIG. 3 and FIG. 4, the parallel cut portion 312 of the first concave portion 31 is provided in a direction substantially perpendicular to the vertical cut portion 311 and in a substantially lower right direction in FIG. 3. On the other hand, the second concave portion 3
The two parallel cut portions 322 are provided in a direction substantially perpendicular to the vertical cut portion 321 and in a substantially upper left direction in FIG.

In addition, both the first concave portion 31 and the second concave portion 32 have respective parallel cut portions 312 so that the outer rollers 41 and 51 can be smoothly fitted into the concave portions and can smoothly come out of the concave portions. , 322 are formed in a curved shape with a gentle inclination.

Both the inner roller 42 of the first roller group 4 and the inner roller 52 of the second roller group 5 contact the outer peripheral surface of the guide rail 3 in the direction of each roller shaft 44, 54 (FIGS. 3 and 4). In the upper part, it is arranged at a position operable in a substantially lower left direction, that is, a tangential direction of an outer circle having a circular cross section of the guide rail 3).

As shown in FIG. 1, a handle 21 is provided on the door 2 so that an operator can slide the door 2, and an opening handle 22 is provided on a side surface of the door 2. ing. An under-floor roller 6 is provided below the door 2 so as to easily slide on the floor. Further, an observation window 2 for observing the internal storage (not shown).
3 is also provided on the door 2. Note that the door tightening guide 7
Is for fixing the door 2 at a fixed position between the roller 6 on the floor and the floor.

Next, the operation of the sliding door opening / closing mechanism of this embodiment will be described with reference to FIGS.

First, when the door 2 is closed, the operator slides the door 2 along the guide rail 3 with the handle 21 to move the first roller group 4 and the second roller group 5 to the first recesses of the guide rail 3 respectively. 31 and the second concave portion 32. In this case, as shown in FIGS. 3 and 4, the first and second roller groups 4 and 5 are located on the first and second concave portions 31 and 32 of the guide rail 3.

As shown in FIG. 3, since the first concave portion 31 is formed at a position where the outer roller 41 of the second roller group 4 fits, the outer roller 41 extends along the substantially vertical notch 311. In the direction of the central axis 33 (in the lower left direction in FIG. 3)
Will move. When the outer roller 41 reaches the parallel notch 312, the central axis 3 of the outer roller 41
The movement in three directions will stop. This outer roller 4
1 in the direction of the central axis 31, the inner roller 42 is similarly moved in the lower left direction (the guide rail 3
(Approximately tangential to the outer circumference of the circle). FIG.
FIG. 4 is a sectional view of a main part showing a state where the outer roller 41 has been fitted into the first concave portion 31 as described above.

Similarly, as shown in FIG. 4, the second concave portion 32 is formed at a position where the outer roller 51 of the second roller group 5 fits.
1 (in the lower left direction in FIG. 4). Then, when the outer roller 51 reaches the parallel cut portion 322, the movement of the outer roller 51 in the direction of the central axis 33 stops. Along with the movement of the outer roller 51 in the direction of the central axis, the inner roller 52 similarly moves in the lower left direction (the guide rail 3 in FIG. 4).
(Approximately tangential to the outer circumference of the circle). FIG.
FIG. 5 is a cross-sectional view of a main part showing a state where the outer roller 51 is fitted into the second recess 32 as described above.

In this manner, the outer roller 41 is
1 and the case where the outer roller 51 fits into the second concave portion 32, the operation itself is the same, but as described above, the circumference of each outer roller 41, 51 on the guide rail 3 is changed. The position of the direction is different. Accordingly, the positions of the first and second concave portions 31 and 32 are also different. Note that the width of each of the inner rollers 42 and 52 is
The inner roller 4 is longer than the width of the inner roller 51.
This is because each of the inner rollers 42 and 52 is slidable on the guide rail 3 even when the inner rollers 2 and 52 move along the outer circumference of the guide rail 3.

As shown in FIGS. 5 and 6, each of the outer rollers 41, 51 is provided with the first and second concave portions 31, 32.
1, the door 2 shown in FIG. 1 moves toward the body (not shown) (to the lower left in FIGS. 5 and 6), and the packing (not shown) provided on the back side of the door 2 , And the door 2 seals the stored items such as powerful drugs in the main body.

Next, the door 2 is slid from the above-mentioned closed state of the door 2 and the main body, and is separated from the main body, so that the door 2 is closed.
The operation for opening the window will be described.

First, an operator applies force to the handle 21 and the opening handle 22 provided on the door 2 shown in FIG.
The first roller group 4 and the second roller group 5 respectively fitted in 2 are pulled up from the concave portions 31 and 32. Specifically, from the state in which the outer rollers 41, 51 of the respective roller groups 4, 5 as shown in FIGS. 5 and 6 are fitted into the respective recesses 31, 32, the respective rollers as shown in FIGS. Outer roller 4
1 and 51 are brought up from the respective concave portions 31 and 32. By applying a force along the direction of the guide rail 3 to the opening handle 22 and the handle 21, the respective concave portions 31 and 32 are formed gently. , 32 can be lifted or exited.

As described above, each outer roller 41 is connected to each recess 3
Guide rail 3
A force is applied in the direction, and the door 2 is slid. In FIG. 1, the door 2 is slid in a substantially left direction. During the sliding, the first roller group 4 of the door 2 passes over the second recess 32 on the guide rail 3. FIG. 2 is a partial cross-sectional view at this time. As described above, in the present embodiment, the guide rails 3 of the outer rollers 41 and 51 between the first roller group 4 and the second roller group 5 are used.
Are made different from each other in the circumferential direction, and the positions of the recesses 31 and 32 on the guide rail 3 are made different in accordance with this difference. Therefore, as shown in FIG. 2, the outer roller 41 of the first roller group 4 can pass through without being fitted into the second recess 32 of the guide rail 3, so that the door 2 can be fully opened.

Next, a method of manufacturing the guide rail 3 having the concave portions 31 and 32 will be described. FIG. 7 is a main part front view of the guide rail 3 having the first concave portion 31. FIG. 8 shows that the guide rail 3 is
It is a principal part front view disassembled every 02. Camshaft 30
The protrusions 30 and the not-shown recesses are provided at their ends so that the guide rails 1 and 302 can be fitted together to form the guide rail 3. In FIG. 8, a not-shown concave portion into which the convex portion 30 can be fitted in close contact is provided at the end of the camshaft 302. Therefore, by fitting these convex portions 30 and concave portions (not shown), the guide rail 3 can be configured by appropriately combining the camshaft 301 having the concave portions 31 and the camshaft 302 having no concave portions 31. In FIG. 8, the convex portions 30 are provided at both ends of the camshaft 301 and a concave portion (not shown) is provided at the end of the camshaft 302. However, a convex portion is provided at one end of one camshaft and the other end is provided at the other end. A configuration in which a concave portion is provided may be employed.

Since the first concave portion 31 and the second concave portion 32 have substantially symmetric shapes, the camshaft 301 having the concave portion 31 shown in FIG.
By fitting it into zero, the second recess 32 can be formed, and the guide rail 3 can be manufactured at low cost while reducing the number of parts.

As shown in FIG. 1, an opening handle 22 is provided on the side surface of the door 2 so that a large force can be easily applied to the door 2.

In addition, an observation window 23 is provided at the upper center of the door 2 so that the state and the like of the stored items inside can be observed and observed. Therefore, the timing of opening the door 2 can be determined according to the internal state.

It should be noted that the door tightening guide 7 is
When a gap is formed between the door 2 and the floor, the door 2 is fixed to a predetermined position by being sandwiched in the gap.

[0041]

As described above, according to the first aspect of the present invention, since the configuration between the first roller group and the second roller group attached to the door is different, the door is fully opened with respect to the main body. Now you can do it.

According to the second aspect of the present invention, since the length of the inner roller in the roller axis direction is made longer, the inner roller can slide on the guide rail stably.

According to the third aspect of the present invention, since the cushioning member is provided on the door, the space between the door and the main body can be securely sealed.

According to the fourth aspect of the present invention, since the observation window is provided on the door, the inside of the main body can be observed, which is convenient.

According to the fifth aspect of the present invention, since the door is provided with the opening handle, the door can be easily opened and closed.

According to the sixth aspect of the present invention, since the door is provided with a floor roller, the door can be easily slid.

According to the seventh aspect of the present invention, since the concave portion includes the parallel cut portion and the vertical cut portion, the concave portion can be easily formed.

According to the eighth aspect of the present invention, since the parallel cut portion is formed in a gentle curved shape, the outer roller can be smoothly fitted into the concave portion.

According to the ninth aspect of the present invention, since the vertical cut portion is formed in a planar shape, the outer roller can be fitted in a fixed direction.

According to the tenth aspect of the invention, since the guide rail is formed by fitting the cam shaft, the guide rail can be manufactured at low cost while reducing the number of parts.

[Brief description of the drawings]

FIG. 1 is a main part front view showing a sliding door opening / closing mechanism according to the present invention.

FIG. 2 is a sectional view of a main part when a first roller group according to the present invention passes over a second recess.

FIG. 3 is a cross-sectional view of a main part when a first roller group according to the present invention reaches a first concave portion.

FIG. 4 is a cross-sectional view of a main part when a second roller group according to the present invention reaches a second concave portion.

FIG. 5 is a cross-sectional view of a main part showing a state where an outer roller according to the present invention is fitted into a first recess.

FIG. 6 is a cross-sectional view of a main part showing a state where an outer roller according to the present invention is fitted into a second recess.

FIG. 7 is a main part front view showing a guide rail having a first concave portion according to the present invention.

FIG. 8 is a fragmentary front view of the guide rail according to the present invention disassembled for each camshaft.

FIG. 9 is a front view of a main part showing a conventional sliding door opening / closing mechanism.

FIG. 10 is a side view of a main part showing a conventional sliding door opening / closing mechanism.

FIG. 11 is a side view of a main part showing a state in which a roller is fitted into a recess in a conventional sliding door opening and closing mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sliding door opening / closing mechanism 2 Door 3 Guide rail 4 First roller group 5 Second roller group 6 Floor roller 7 Door tightening guide 8 Mounting rod 21 Handle 22 Open handle 23 Observation window 30 Convex part 31 First concave part 32 Second concave part 33 center shaft 41 outer roller 42 inner roller 43 roller shaft 44 roller shaft 51 outer roller 52 inner roller 53 roller shaft 54 roller shaft 301 camshaft 302 camshaft 311 vertical cut 312 parallel cut 321 vertical cut 322 parallel Notch

Claims (10)

[Claims] 1. A sliding door opening / closing mechanism for opening and closing a door with respect to a main body, wherein a guide rail having a circular cross section attached to the main body, and a first roller group and a second roller group attached to the door. Having a first roller group and a second roller group, each having an outer roller and an inner roller whose roller axis directions are substantially orthogonal to each other, and between the first and second roller groups, While differentiating the position of the outer roller in the circumferential direction, the guide rail is configured such that when the door is closed, the outer rollers of the first and second roller groups are respectively fitted in the first concave portion and the second concave portion fitted in the central axis direction of the guide rail. A sliding door opening and closing mechanism having two recesses. 2. The sliding door opening and closing mechanism according to claim 1, wherein a length of the inner roller in the roller axis direction is longer than a length of the outer roller in the roller axis direction. 3. The sliding door opening / closing mechanism according to claim 1, wherein the door is provided with a cushioning member for sealing between the main body and the door when the door is closed. 4. The apparatus according to claim 1, wherein the door is provided with an observation window through which the inside of the main body can be seen.
The sliding door opening / closing mechanism according to 2 or 3. 5. The door according to claim 1, wherein an opening handle for opening and closing the door is provided on the door.
The sliding door opening / closing mechanism according to 2, 3 or 4. 6. The door according to claim 1, wherein a floor roller is provided at a bottom portion of the door.
The sliding door opening and closing mechanism as described. 7. The concave portion has a parallel cut portion in a direction substantially parallel to a direction of a roller axis of the outer roller and a vertical cut portion in a direction substantially perpendicular to a roller axis of the outer roller. The sliding door opening / closing mechanism according to claim 1, 2, 3, 4, 5, or 6. 8. The sliding door opening / closing mechanism according to claim 7, wherein the parallel cut portion is formed in a gently curved shape so that the outer roller can be smoothly fitted into the concave portion. 9. The sliding door opening / closing mechanism according to claim 7, wherein the vertical notch has a planar shape. 10. The guide rail according to claim 1, 2, 3, 4, 5, 6, 7, 8, or 9, wherein the guide rail is formed by fitting a camshaft provided with the concave portion. The sliding door opening and closing mechanism as described.