JP3114582U - Hanger type telescopic gate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily ensure the rigidity of an entire door body and to surely prevent a sag from a moving end side.
SOLUTION: A door body 3 is configured by pivotally connecting a plurality of right upward inclined links 8 and a left upward inclined link 9 intersecting at seven intersections 7 by pin shafts 16 to 18 at the intersection 7. One end side in the longitudinal direction of the door body 3 is attached to an attachment portion such as a suspension side column 1. The pin shafts 16 to 18 are arranged at the respective crossing portions 7 except the second crossing portion 7 from the top, and the inclined links 8 among the pivot attachment holes for the pin shafts 16 to 18 of the respective inclined links 8 and 9 are provided. , 9 is shifted to the lower side in the width direction of each inclined link 8, 9 than the line connecting the centers of the pivot holes at both ends in the longitudinal direction. Of the inter-axial distances between adjacent pin shafts 16 to 18 on the inclined links 8 and 9, the lower inter-axis distance of the door body 3 is longer than the upper inter-axis distance excluding the uppermost inter-axis distance. The uppermost inter-axis distance is shorter than about twice the lower inter-axis distance.
[Selection] Figure 6

Description

  The present invention relates to a hanger-type telescopic gate that can prevent the moving end from hanging down when the door is extended.

  A plurality of right-upward inclined links and left-upward inclined links are pivotally connected to each other by a pin shaft to form a door body that can be extended and contracted in the longitudinal direction. In the hanger-type telescopic gate attached to the column, the hanging on the moving end side when the door is extended becomes a problem.

Conventionally, as a measure for preventing the drooping, among the seven intersecting portions in the longitudinal direction of each inclined link, six intersecting portions excluding the central intersecting portion are pivotally attached by the pin shaft, and The distance between the shafts of the three pin shafts is changed in the vertical direction so that the upper side is shorter than the lower side (Patent Document 1), and the inside of the pivot attachment hole for the pin shaft of each inclined link In addition, there is a configuration in which the pivot hole on the center side in the longitudinal direction is arranged so as to be shifted to the lower side in the width direction with respect to the line segment connecting the centers of the pivot holes at both ends (Patent Document 1).
JP-A-9-177455 JP 2000-87669 A

  In the conventional former, the telescopic gate does not include the pin shaft at the center in the vertical direction of the door body, and pivots at the three intersections on the upper and lower sides by the pin shaft. There is a drawback that the rigidity is lowered. That is, in the conventional structure, the number of four-node links pivoted on the pin shaft is very small, so the overall rigidity of the door body decreases, and the door body swings unstablely during expansion and contraction operations. There are problems such as deformation or damage when a large external force is applied.

  In addition, the latter telescopic gate uses the elastic force due to the bending in the width direction of each inclined link to prevent the moving end side from drooping. To prevent drooping reliably, it is necessary to secure the elastic force sufficiently. There is. However, in this case, the pin shaft is inserted into the pivot attachment hole while resisting the elastic force of the inclination link at the time of assembly. There is a drawback that the wear between each pin shaft inserted into the hole becomes severe.

  In view of such conventional problems, the present invention can easily ensure the rigidity of the entire door body, reliably prevent the moving end from sagging, and is easy to assemble, such as pin shaft wear. An object of the present invention is to provide a hanger-type telescopic gate that can prevent as much as possible.

  In the present invention, a door body 3 is configured by pivotally connecting a plurality of right-upward inclined links 8 and left-upward inclined links 9 that intersect at at least five intersections 7 with pin shafts 16 to 18 at the intersections 7. In the hanger-type telescopic gate door in which one end side in the longitudinal direction of the door body 3 is attached to the attachment portion such as the suspension column 1, at least the second intersection portion 7 from the top to the intersection portions 7 The pin shafts 16 to 18 are arranged, and among the pivot holes for the pin shafts 16 to 18 of the inclined links 8 and 9, the pivot holes on the center side in the longitudinal direction of the inclined links 8 and 9 are provided. Is shifted to the lower side in the width direction of the inclined links 8 and 9 with respect to the line segment L connecting the centers of the pivot attachment holes on both ends in the longitudinal direction, and adjacent to the inclined links 8 and 9. Of the inter-axis distances between the pin shafts 16 to 18, between the shafts on the lowermost side of the door body 3 Away was longer than between the upper shaft distance except center distance between the top, the one in which the distance between the top of the shaft and smaller than approximately two times the distance between the axes of the lower side.

  Each of the inclined links 8 and 9 at the intermediate portion in the longitudinal direction of the door body 3 has five or more intersections 7, and the pins are connected to the intersections 7 excluding the second intersection 7 from the top. The shafts 16 to 18 are arranged, and the inter-axis distances on the upper and lower sides of the third pin shaft from the bottom of the inclined links 8 and 9 are substantially the same. Each of the inclined links 8 and 9 has a larger amount of elastic deformation in the width direction of each of the inclined links 8 and 9 than between the uppermost pin axes.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 7 illustrate a first embodiment of the hanger-type telescopic gate of the present invention. As shown in FIGS. 1 to 3, the hanger-type telescopic gate is composed of a suspension-side support column 1 and a door-end support column 2 erected on the ground on both the left and right sides of an entrance and the like, and a space between these support columns 1 and 2. And a door body 3 that is disposed so as to be extendable in the left-right direction and that has one end attached to the suspension-side column 1.

  Each door body 3 is equidistant between the vertical suspension base end frame 4 disposed on one end side, the vertical door end frame 5 disposed on the other end side, and both end frames 4, 5. A plurality of vertical frame members 6 arranged in the up and down direction, and are arranged to rise to the right and to the left between the both end frames 4 and 5 and correspond to each end frame 4, 5 and the vertical frame material 6. A plurality of right-upward inclined links 8 and a left-upward crossing each other at a plurality of vertical portions 6, for example, at three crossing portions 7, for example, at four crossing portions 7 in the vertical direction. It has the inclination link 9, and is comprised so that expansion-contraction is possible in the opening-and-closing direction (left-right direction), such as an entrance. A drop bar 10 is provided on the middle vertical frame member 6.

  The suspension side end frame 4 is rotatably mounted around the hinge 11 in the vertical direction with respect to the suspension side column 1 so that the door 3 can be swung and stored behind the suspension unit column 1 and the like. . The door stop side end frame 5 includes a handle 12 and locking means, and can be locked by the locking means in a closed state in contact with the door stopper side support column 2. The suspension end frame 4 and the door end frame 5 also serve as the vertical frame member 6.

  The inclined links 8 and 9 are made of rectangular cylindrical aluminum or an aluminum alloy extruded die having a width in front view larger than the thickness in the front-rear direction. The inclined links 8 and 9 are of a plurality of types having different lengths such as long, medium and short according to the number of intersections 7 intersecting the end frames 4 and 5 or other inclined links 8 and 9. There is a pantograph mechanism 13 that can expand and contract in the opening and closing direction by combining a large number (a plurality) of the inclined links 8 and 9. The end frames 4, 5 and the vertical frame member 6 are arranged on the front and rear sides of the inclined links 8, 9, and the upper and lower ends are connected in the front-rear direction by the upper cap 14 and the lower cap 15.

  The medium-sized inclined links 8 and 9 and the short inclined links 8 and 9 are arranged one by one at both ends in the left-right direction of the door body 3, and the long inclined links 8 and 9 are arranged in the left-right direction of the door body 3. A large number (multiple) are arranged between both ends. The long inclined links 8, 9 intersect the end frames 4, 5 or other inclined links 8, 9 at at least five, for example, seven intersections 7, and the medium and short inclined links 8, 9. Is 5 points at a height corresponding to 7 intersecting portions 7 of the long inclined links 8 and 9 and 3 intersecting end frames 4 and 5 or other inclined links 8 and 9 respectively. Yes. And each inclination link 8 and 9 is the front-back direction of the fixed pin axis | shaft 16, the movable pin axis | shaft 17, the floating pin axis | shaft 18, etc. in each cross | intersection part 7 except the 2nd cross | intersection part 7 from the upper side among each cross | intersection part 7. These pin shafts 16 to 18 are pivotally mounted so as to be relatively rotatable.

  The fixed pin shaft 16 is provided at the third intersection portion 7 from the bottom on the inclined links 8 and 9, and as shown in FIG. 5 is arranged between the vertical frame members 6 and cannot be moved up and down to the end frame members 4, 5 and the vertical frame member 6 by the rivets 16 a and the like which are pivotally attached to the end frame members 4 and 5 and the vertical frame member 6 from both the front and rear sides. It is fixed to. The fixed pin shaft 16 is fitted with a sleeve 19 that regulates the interval between the inclined links 8 and 9, the end frames 4 and 5, and the vertical frame member 6.

  The movable pin shaft 17 is provided at the intersection 7 corresponding to the end frames 4 and 5 and the vertical frame 6, that is, at the first, third and seventh odd-numbered intersections 7 from the top of the inclined links 8 and 9. At the same time, as shown in FIG. 4 (B), the pivotally attached portion with respect to the vertical frame member 6 is supported by the end frames 4, 5 and the vertical frame member 6 through the front and rear guide rollers 20 so as to be movable in the vertical direction. Yes. The guide roller 20 engages with the ribs 21 in the vertical direction in the end frames 4 and 5 and the vertical frame material 6 and can freely roll in the vertical direction. The movable pin shaft 17 has the inclined links 8 and 9. A sleeve 22 for restricting the distance between the end frames 4 and 5 and the vertical frame member 6 is fitted.

  The floating pin shaft 18 is the second from the top of the crossing portion 7 excluding the upper side of the top and bottom crossing portions 7 between the adjacent vertical frame members 6 including the end frames 4, 5, that is, the inclined links 8, 9. It is provided at each of the intersections 7 except for the second of the sixth and sixth even-numbered intersections 7. A sleeve 23 for restricting the distance between the inclined links 8 and 9 is fitted over each floating pin shaft 18 as shown in FIG.

  Of the intersecting portions 7 of the inclined links 8 and 9, the second intersecting portion 7 from the top is not provided with any pin shaft, and at this intersecting portion 7, the inclined links 8 and 9 have a predetermined front and rear. Intersect at intervals. Accordingly, each crossing portion 7 except the second crossing portion 7 is pivotally attached to the pin shafts 16-18.

  Each inclined link 8, 9 is formed with a pivot attachment hole 25 </ b> A to 25 </ b> F through which the pin shafts 16 to 18 are inserted to pivotally attach each inclined link 8, 9 corresponding to each pin shaft 16 to 18. Yes. Of the pivot holes 25A to 25F for the pin shafts 16 to 18 of the long inclined links 8 and 9, the pivot holes 25B to 25E on the center side in the longitudinal direction are on the right in FIG. As shown in FIG. 5 (B), each of the upward inclined links 8 and the left upward inclined links 9 are illustrated. As shown in FIG. It deviates below the width direction of the inclined links 8 and 9 from the line segment L connecting the centers of the pivot holes 25A and 25F.

  Further, as shown in FIGS. 5 and 6, the lowermost side of the door body 3 among the longitudinal inter-axis distances T to X of the adjacent pin shafts 16 to 18 on the long inclined links 8 and 9. The inter-axis distance X is longer than the upper inter-axis distances U to W excluding the uppermost inter-axis distance T, and the inter-axis distances U and W on the upper and lower sides of the third fixed pin shaft 16 from the bottom are It is almost the same. The uppermost inter-axis distance T is slightly shorter than approximately twice the lower inter-axis distance U, and the adjacent uppermost pin shafts 17 of the inclined links 8 and 9 are adjacent to each other. The amount of elastic deformation in the width direction is larger than that between the pin shafts 16-18.

  Incidentally, in this embodiment, the long inclined links 8 and 9 are such that the distance between the axes is T = 295 mm, U = 148 mm, V = 149 mm, W = 149 mm, and X = 150 mm. Six pivot holes 25A to 25F are formed in the longitudinal direction so that the distances V and W are the same. Further, the pivot attachment holes 25A and 25F at both ends in the longitudinal direction are substantially at the center of the inclined links 8 and 9 in the width direction, and are offset downward from the line segment L of each of the intermediate four pivot attachment holes 25B to 25E. The scales are a = 1 mm, b = 2 mm, and c = 3 mm.

  The other middle and short inclined links 8 and 9 have long inclined links 8 and 9 at positions corresponding to the intersections 7 having the height corresponding to the intersections 7 of the long inclined links 8 and 9. Similarly, the pivot holes are formed at the inter-axis distances T to X and the deviation amounts a to c corresponding to the nine pivot holes 25A to 25F. Therefore, the corresponding inter-axial distances T to X and the deviation amounts a to c are the same throughout the door body 3 in each of the inclined links 8 and 9.

  In the telescopic gate having such a configuration, the pin shafts 16 to 18 are arranged at the intersections 7 except the second intersection 7 from the top, and the pivots for the pin shafts 16 to 18 of the inclined links 8 and 9 are arranged. Among the landing holes 25A to 25F, the inclined links 8 and 9 are more than the line segment L connecting the center of the longitudinal mounting holes 25B to 25E between the center of the longitudinal mounting holes 25A and 25F. The axial distance X on the lowermost side of the door body 3 among the axial distances T to X between the adjacent pin shafts 16 to 18 on the inclined links 8 and 9 is shifted downward. The upper inter-axis distances U to W excluding the uppermost inter-axis distance T are made longer, the uppermost inter-axis distance T is made slightly shorter than about twice the lower inter-axis distance U, and each The distances V and W between the upper and lower sides of the third fixed pin shaft 16 from the bottom of the inclined links 8 and 9 are substantially the same.

  Therefore, the door 3 as a whole is formed into a fan-shaped shape in a free state, and the lifting force accompanying the elastic deformation of the inclined links 8 and 9 acts on the door 3 as a whole. There is an advantage that the rigidity of the entire body 3 can be easily secured, the hanging of the moving end side in the extended state can be surely prevented, the assembly and the like are easy, and the wear of the pin shafts 16 to 18 can be prevented as much as possible. .

  In particular, in this embodiment, as shown in FIG. 6, pin shafts 16 to 18 are provided at each crossing portion 7 except for the second crossing portion 7 from the top among the crossing portions 7 of the inclined links 8 and 9. Therefore, six four-bar links can be configured as follows. The door body 3 is formed with two large four-bar links adjf and eink at the top and bottom and four small four-bar links egjh, jlnm, gilj, and hjmk on the lower side. It restrains mutually and prevents the door body 3 from drooping. Therefore, the number of four-bar links is increased compared to the prior art, and since it is concentrated from the middle part in the vertical direction of the door body 3 to the lower side, the rigidity of the door body 3 as a whole can be secured and the telescopic operation can be performed. The vibration of time can be reduced, and even when some external force is applied, the deformation and other damage can be prevented.

  Further, since the distances V and W between the upper and lower sides of the intermediate fixed pin shaft 16 are the same, a predetermined restraining force can be secured between the four small four-node links egjh, jlnm, gilj, and hjmk, and the door The variation in the vertical direction of each fixed pin shaft 16 in the entire body 3 can be reduced. In addition, the small four-bar links egjh, jlnm, gilj, and hjmk are concentrated on the lower side of the inclined links 8 and 9 and can be constituted by relatively long links, so that variations due to errors in manufacturing and the like are reduced. be able to.

  On the other hand, when the inclined links 8 and 9 are crossed with reference to the pin shaft 17 inserted into the pivot attachment holes 25A and 25F at both ends, the pivot attachment holes 25B to 25E in the middle portion in the longitudinal direction are pivotally attached to both ends. Since the displacements a to c are displaced downward from the line segment L connecting the centers of the holes 25A and 25F, when the inclined links 8 and 9 are straight, for example, 2 in FIG. The positions of the pivot holes 25B to 25E are not aligned so as to exemplify the long inclined links 8 and 9. However, in actuality, since the pin shafts 16 to 18 are inserted into the corresponding pivot attachment holes 25A to 25F of the inclined links 8 and 9 to be pivotally attached, the inclined links 8 and 9 are attached to the inclined links 8 and 9, respectively. As shown in FIG. 2, the elastic force that curves the central portion in the longitudinal direction upward acts according to the deviation amounts a to c. For this reason, as shown by an arrow in FIG. 7B, the inclined links 8 and 9 generate a force in the lifting direction that lifts the moving end side of the door body 3 due to its elastic deformation, thereby moving the door body 3. The drooping of the end side can be prevented.

  Further, since the door body 3 is configured in a fan shape by changing the inter-axis distances T to X of the inclined links 8 and 9, it is compared with a case where the pivot holes 25B to 25E are simply displaced. Thus, it is possible to prevent drooping without generating a large lifting force on each of the inclined links 8 and 9, and it is possible to easily perform operations during assembly such as insertion of the pin shafts 16 to 18 into the pivot holes 25 </ b> A to 25 </ b> F.

  Furthermore, the distance T between the uppermost axes of the inclined links 8 and 9 has a maximum length that is slightly shorter than twice the distance U between the lower axes. Since the amount is large, the inclined links 8 and 9 are elastically deformed relatively easily in this portion. For this reason, it is possible to easily prevent wear of the contact portion between the pivot mounting holes 25A to 25F and the pin shafts 16 to 18, particularly uneven wear.

  8 and 9 illustrate a second embodiment of the present invention. This door body 3 has nine intersections 7 of the long inclined links 8 and 9, and the pivot holes 25A to 25H are formed in each intersection 7 excluding the second intersection 7 from above. It is. Among the pivot holes 25A to 25H, the pivot holes 25B to 25G on the center side in the longitudinal direction of the inclined links 8 and 9 are line segments L connecting the centers of the pivot holes 25A and 25H on both ends in the longitudinal direction. Rather than the lower side of the inclined links 8 and 9 in the width direction.

  Of the inter-axis distances T to Z between the adjacent pin shafts 16 to 18 on the inclined links 8 and 9, the uppermost inter-axis distance T and the distance between the upper and lower axes of the third pin shaft 16 from the bottom. The inter-axis distances U, V, W, and Z excluding the distances X and Y are gradually increased as they become lower, and the uppermost inter-axis distance T is slightly shorter than approximately twice the lower inter-axis distance U. It has become. The distances X and Y between the upper and lower sides of the third pin shaft 16 from the bottom are substantially the same, longer than the upper inter-axis distance W and shorter than the lower inter-axis distance Z.

  FIG. 10 illustrates a third embodiment of the present invention. In this embodiment, as shown in FIG. 10 (A), the right upward inclined link 8 and in FIG. 10 (B), the left upward inclined link 9, respectively, the pin shafts 16 to 16 of the long inclined links 8, 9 are illustrated. Among the 18 pivot mounting holes 25A to 25F, the pivot mounting holes 25A and 25F at both ends in the longitudinal direction are formed by being displaced by a displacement amount d above the substantially central line segment S in the width direction. The side pivot holes 25B to 25E are line segments connecting the centers of the pivot holes 25A and 25F on both ends in the longitudinal direction so that the displacement amounts a to c increase as they approach the center in the longitudinal direction. It is formed to be deviated below L in the width direction of the inclined links 8 and 9.

  Therefore, in each of the inclined links 8 and 9, the pivot holes 25A and 25F are displaced in the width direction by the displacement amount d with respect to the line segment S, and the pivot holes 25E are displaced by the displacement amount da with respect to the line segment S, respectively. The pivot holes 25B and 25D are displaced in the width direction with respect to the line segment S, and the pivot holes 25C are displaced in the width direction with respect to the line segment S by the displacement amount cd. It is biased downward. When the positions in the width direction of the pivot holes 25A to 25F with respect to the line segment S are viewed, the pivot holes 25A and 25F and the pivot holes 25C, the pivot holes 25B and 25D, and the pivot holes 25E are substantially symmetrical. Yes.

  Thus, by forming each pivot attachment hole 25A-25F in each inclination link 8 and 9, the width of each inclination link 8 and 9 can be used effectively, and the width of the attachment hole 25A and 25F of the both ends of a longitudinal direction is width. Compared to the case where the inclined links 8 and 9 are formed at substantially the center of the direction, the inclined links 8 and 9 having a small width can be used. Other configurations are the same as those of the first embodiment.

  As mentioned above, although each Example of this invention was explained in full detail, this invention is not limited to each Example, It can implement in another various aspect. For example, in each embodiment, the door body 3 having a structure including the vertical frame member 6 in addition to the right upward inclined link 8 and the left upward inclined link 9 is illustrated, but the vertical frame member 6 may be omitted. .

  Further, in the case of the door body 3 provided with the vertical frame member 6, the long inclined links 8, 9 intersect at five or more odd-numbered intersecting portions 7, and the upper and lower intersecting portions corresponding to the vertical frame member 6. It is desirable that the movable pin shaft 17 be guided so as to slide up and down with respect to the vertical frame member 6. In the case of the door body 3 without the vertical frame member 6, the long inclined links 8 and 9 may intersect at five or more intersections 7. Accordingly, the number of the intersections 7 where the long inclined links 8 and 9 intersect may be either odd or even. The dimensions of the inter-axis distance and the deviation amount in the embodiment are merely examples, and are not limited to the dimensions. The telescopic gate may be a double door type as well as a single door type.

It is a front view of a hanger type expansion-contraction gate which shows the 1st example of the present invention. 1 is a schematic plan view showing a first embodiment of the present invention. It is a side view of the door which shows the 1st example of the present invention. (A)-(C) are sectional drawings of the pivot part which shows the 1st Example of this invention. (A) (B) is explanatory drawing of the inclination link which shows the 1st Example of this invention. It is explanatory drawing of the door body which shows the 1st Example of this invention. (A) and (B) are operation | movement explanatory drawings of the inclination link which shows the 1st Example of this invention. It is a front view of the hanger type expansion-contraction gate which shows the 2nd Example of this invention. It is explanatory drawing of the inclination link which shows the 2nd Example of this invention. (A) (B) is explanatory drawing of the inclination link which shows the 3rd Example of this invention.

Explanation of symbols

3 Door body 8 Right upward inclined link 9 Left upward inclined link 7 Intersection 16 Fixed pin shaft 17 Movable pin shaft 18 Free pin shaft 25A to 25H Pivoting hole L Line segment T to Z Axis distance

Claims (3)

A plurality of right-upward inclined links and left-upward inclined links that intersect at least at five intersections are pivotally attached to each other by a pin shaft at the intersection, and one end side in the longitudinal direction of the door body is formed. In the hanger-type telescopic gate attached to the attachment part such as the suspension-side support column, the pin shafts are arranged at the intersections except at least the second intersection from the top, and the pin axes of the inclined links The width of each inclined link is larger than the line segment L connecting the center of the pivot holes on both ends in the longitudinal direction with respect to the center of the pivot holes on both ends in the longitudinal direction. It is displaced downward in the direction, and the inter-axis distance between the adjacent pin shafts on each inclined link is the upper-side inter-axis distance excluding the uppermost inter-axis distance. Longer than the inter-axis distance, and the uppermost inter-axis distance is the lower inter-axis distance. Hanger telescopic gates, characterized in that it has less than about twice the. Each of the inclined links in the intermediate portion in the longitudinal direction of the door body has five or more intersecting portions, and the pin shafts are disposed at the intersecting portions excluding the second intersecting portion from the top. The hanger-type telescopic gate according to claim 1, wherein the distance between the upper and lower sides of the third pin shaft from the bottom of the inclined link is substantially the same. 3. The hanger-type expansion and contraction according to claim 1, wherein each of the inclined links has a larger amount of elastic deformation in the width direction of each inclined link than between the other pin axes. Gate.

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