JPH0616142Y2 - Positioning structure for pivoted members - Google Patents

Description

The present invention relates to a positioning structure for a pivotally mounted member for axially positioning a pivotally mounted member pivotally mounted around a shaft. It is a thing.

(Prior Art) As an example of a positioning structure for a pivotally mounted member of this type, a vertical frame member 111 and inclined connecting members 112, 11 are conventionally used in an expandable retractable gate as shown in FIGS. 4 and 5, for example.
There are some applied to the connection part with 2. That is, the expandable telescopic gate shown in FIGS. 4 and 5 has a plurality of vertical frame members 111, 111 ...
The fixed side end portion 101A of the gate main body 101, which is connected in such a manner that it can be expanded and contracted sequentially in the order of 2 ..., While being fixed to the suspension side pillar 104, the open / close side end portion 101B of the gate main body 101
Is configured to be slidable along the rail 108 so that it can be expanded and contracted to open and close. Each of the vertical frame members 111 is formed in a substantially shape, and both vertical bar members 113A and 113B thereof are formed.
Inclined connecting members (members to be pivoted) 112, 112 that are inclined in the left and right directions are pivotally attached to a shaft 114 provided therebetween. The inclined connecting members 112, 112 are fitted onto the shaft 114 so as to be rotatable and axially slidable. Also, each of the inclined connecting members 112, 112
As shown in FIG. 6, positioning members 115, 115, 115 are respectively provided on both sides of each of the
Axial movement of each of the inclined connecting members 112, 112 is restricted. Each positioning member 1 in FIG.
Reference numerals 15, 115, and 115 serve as spacers, and the vertical rod member 113 of the vertical frame member 111 and the inclined connecting member 1 are provided.
A cylindrical body (for example, made of synthetic resin) having the same length as the space to be held between 12 or both inclined connecting members 112, 112 is used.
5, 115, 115) are inserted between the vertical bar member 113 and the inclined connecting member (pivotally attached member) 112 or between the inclined connecting members 112, 112 while being loosely fitted around the shaft 114. , Each inclined connecting member 112, 112
Is positioned at a predetermined position.

However, in the positioning structure of the pivotally mounted member (tilted connecting member) shown in FIG. 6, each positioning member (a total of three) is used.
Reference numerals 115, 115 and 115 denote two members (between the vertical bar member 113 and the inclined connecting member 112 or both the inclined connecting members 11 and 115).
Since the positioning members 115, 115, 115 are required to have high dimensional accuracy (in particular, dimensional accuracy in the longitudinal direction), the positioning members 115, 115, 115 (for example, the dimensional accuracy (long length)) are used as spacers. Is longer than the distance between the two members (113 and 112 or 112), the positioning member 115 moves axially between the two members so that the inclined connecting member 112 moves in the axial 14 direction. In addition to the problem of easy rattling, the positioning member 115 needs to have the same length as the distance between the two members, so that there is a problem that the amount of members as the positioning member increases and the material cost increases.

(Object of the Invention) In view of the problems of the conventional positioning structure for the pivotally mounted member, the present invention does not require dimensional accuracy of the positioning member.
Moreover, it is an object of the present invention to propose a positioning structure for a pivotally mounted member that can reduce the material cost for positioning the pivotally mounted member.

(Means for Achieving the Purpose) The present invention provides a member pivotally mounted so as to be rotatable about an axis that is installed between a pair of members that are installed at a predetermined distance from each other. A positioning structure for a pivotally mounted member, in which positioning members are provided on both sides of the pivotally mounted member in the axial direction so that the pivotally mounted member can be rotated around an axis while the movement in the axial direction is restricted. In the above, the shaft is made of a expandable round pipe, and a positioning member rotatable with respect to the shaft is interposed between one member and the pivotally mounted member, and the shaft is further fitted. The positioning member between the pivot member and the other member is formed of an annular body that can be fitted to the outside of the shaft, and the positioning portion formed of the annular body has an end surface of the positioning member at a predetermined axial position. The side surface of the pivotally mounted member located at The positioning member fitting position portion of the shaft is expanded while being externally fitted to the shaft at a fixed position so that the shaft is fixed to the shaft to position the pivotally mounted member. It is characterized by.

(Operation) In the present invention, the positioning member rotatable about the shaft is provided between the one member and the pivotally mounted member in an externally fitted state, and further, the pivotally mounted member and the other member. The positioning member is fixed to the shaft by expanding the positioning member fitting position portion of the shaft in a state where the positioning member is externally fitted to the shaft, and the pivotally mounted member is located at the positioning member fixing position. Since it does not move to the positioning member side, dimensional accuracy of each positioning member is not required,
Moreover, the positioning member fixed to the shaft can be short and small.

(Embodiments) Some embodiments of the present invention will be described with reference to FIGS. 1 to 3. FIG. 2 shows the first embodiment of the present invention and FIG. 3 shows the second embodiment. A pivoting member positioning structure is shown. In each of the embodiments, the pivoting member positioning structure of the present invention is applied to the connecting portion between the vertical frame member 11 and the inclined connecting member 12 in the expandable retractable gate as shown in FIG. Incidentally, FIG. 1 shows a side view of a gate adopting the positioning structure of the pivotally mounted member according to the first embodiment of the present invention. The front view of the gate has the shape shown in FIG. There is.

In this gate, a plurality of vertical frame members 11 formed in a shape are connected to each other by tilting connecting members 12, 12 which are inclined in the left and right directions to form a gate body 1, and the fixed side of the gate body 1 is fixed. The end portion (reference numeral 101A in FIG. 4) is fixed to the suspension side support (same reference numeral 104), and the open side end portion (same reference numeral 101B) can be freely expanded and contracted along the rail 8.

One shaft is installed between each vertical bar member (corresponding to a pair of members in the scope of utility model registration claims) 13A and 13B in the vertical frame member 11, and both vertical bar members 13,
Two inclined connecting members (corresponding to a pivotally attached member in the scope of utility model registration claims) 12 and 12 which are inclined in the left and right opposite directions are pivotally attached to one shaft 14 between 13 and 13. In this embodiment, the distance A between the vertical bar members 13A and 13B is relatively large (for example, A = 350 mm), and the inclined connecting member 12 is interposed between the vertical bar members 13A and 13B. , 12 are positioned at one-sided positions in the direction of the shaft 14 (positions on the right side in the illustrated example).

Further, in the first embodiment shown in FIG. 2, the shaft 14 is configured by coaxially adding pipe-split shafts 20A and 20B, which can be expanded, to each other, as will be described later. Each of the split shafts 20A and 20B is, as shown in FIG. 2, an inclined connecting member (hereinafter, referred to as a left inclined connecting member) 12 located on the left side of the two inclined connecting members 12 and 12.
Are connected to each other in the vicinity of the left side of. That is,
The right split shaft 20A protrudes from the vertical bar member (hereinafter, referred to as the right vertical bar member) 13A located on the right side to the left side by an appropriate small amount from the left side surface of the left tilted connecting member 12 positioned at a predetermined axial position. From the vertical bar member (hereinafter referred to as the left vertical bar member) 13B located on the left side and having a thickness that allows the left split shaft 20B to fit outside the right split shaft 20A. The split shaft 20 has a length in a range where it abuts against the left side surface of the left tilt connection member 12.
A and 20B are overlapped with each other by a width indicated by a symbol B on the left side portion of the left side inclined connecting member 12.
The left and right inclined connecting members 12 and 12 are connected to the right split shaft 20.
It is loosely fitted to A so as to be rotatable and movable in the axial direction.

Positioning members 15A, 15A, 15B for positioning the inclined connecting members 12, 12 at predetermined axial positions are provided on both sides of the inclined connecting members 12, 12 in the axial direction.
Is provided. That is, as shown in FIG. 2, between the right vertical bar member 13A and the tilt connecting member (hereinafter, referred to as the right tilt connecting member) 12 located on the right side of the two tilt connecting members 12, 12, and both left and right. Inclined connection members 12, 12
Positioning members 15A, 15A made of a pipe (for example, an aluminum pipe) each having a relatively short size (for example, about 50 to 60 mm) are interposed between the right split shaft 20A and the positioning members 15A, 15A. Further, a positioning member 15B configured by the right end of the left split shaft 20B is provided on the left side of the left tilt connection member 12. still,
Among these three positioning members 15A, 15A, 15B, the two positioning members 15A, 15A located at the first and second positions from the right side in FIG. 2 are between the respective members (right vertical bar member 13A and right side). Inclined connection member 12
Or a positioning member 15B located at the left end on the other hand acts as a spacer for maintaining the space between the left and right inclined connecting members 12, 12.
2 acts as a stopper for preventing further movement to the left from a predetermined axial position.

In the first embodiment, the positioning member 15B located at the left end is also used as the left split shaft 20B forming a part of the shaft 14 as described above. This left split shaft 20B
The inner diameter of is substantially the same as the outer diameter of the right split shaft 20A, and the right end 20Ba of the left split shaft 20B can be fitted to the outside of the left end 20Ab of the right split shaft 20A. ing.

Then, the left and right vertical bar members 13A, 13B, the left and right inclined connection members 12, 12, the left and right split shafts 20A, 20B,
And two positioning members 15A, 15 that serve as spacers
Each A is assembled as follows. That is, the right split shaft 20A is provided on the left side surface of the right vertical bar member 13A.
The right end portion 20Aa of the above is tie-locked (reference numeral 9), and the right split shaft 20A sequentially has a first positioning member 15A serving as a spacer, a right inclined connecting member 12, and a second positioning member 15A serving as a spacer. , The left tilted connecting member 12 is externally fitted, and the right split shaft 20
The right end 20Ba of the left split shaft 20B is fitted to the outside of the left end 20Ab of A to the position where the right end face of the left split shaft 20B abuts the left face of the left tilted connecting member 12, and In this state, the tube expanding device Z is inserted from the opening at the left end of the left split shaft 20B to expand the overlapped portion (range B) of the right split shaft 20A with the left split shaft 20B (expansion part Y) into left and right splits. The shafts 20A and 20B are fixed to each other, and the left end portion 2 of the left split shaft 20B is fixed.
0Bb is attached to the right side surface of the left vertical bar member 13B by tie lock connection (reference numeral 10). Therefore, the first and second positioning members 15A and 15A serving as spacers, and the two left and right tilt connecting members 12 and 12 are respectively loosely fitted around the right split shaft 20A, and the right vertical rod member 13 is provided.
It is sandwiched between the left side surface of A and the right side end surface of the left split shaft 20B (which serves as the positioning member 15B), so that the movement in the axial direction is reliably regulated. The left and right inclined connecting members 12, 12 can rotate with respect to the shaft 14 composed of the left and right split shafts 20A, 20B.

In the positioning structure of the pivotally mounted member (left and right inclined connecting members) of the first embodiment, the positioning member 15B located at the left end in FIG. 2 is the shaft (right divided) which is pivotally attached to the left inclined connecting member 12. Since it is fixed with respect to the shaft 20A), the left-side inclined connecting member 12 has the positioning member 15B.
Since the left and right inclined connecting members 12, 12 are less likely to rattle in the axial direction, the dimensional accuracy of the positioning members 15A, 15A, 15B is not required. Further, in the first embodiment, the left split shaft 20B also serves as the positioning member 15B, and the double pipe portion is designated by the symbol C as compared with the conventional pivoting member positioning structure (FIG. 6).
It can be reduced by the range of (Fig. 2). Further, in this embodiment, since the tube expanding method is adopted as the method of fixing the positioning member 15B to the shaft (right divided shaft 20A), the appearance becomes better than that of screw fixing or welding.

In the positioning structure for the pivotally mounted member of the second embodiment shown in FIG. 3, the shaft 14 is composed of one pipe member having a length extending over the entire length between the left and right vertical bar members 13A and 13B. Around the right side portion of the shaft 14, a first positioning member 15A serving as a spacer, a right tilt connecting member 12, a second positioning member 15A serving as a spacer, and a left tilt connecting member 1
2 and the positioning member 15C made of a small ring-shaped body are fitted respectively, and the tube expanding device Z is inserted into the shaft 14 while the positioning member 15C made of the ring-shaped body is pressed against the left side surface of the left tilted connecting member 12. Insert the shaft 14
By expanding the fitting portion of the positioning member 15C in (1), the positioning member 15C is expanded by the shaft 14
It is configured so as not to move to the left from the fixing position of the positioning member 15C by being fixed around the. Also in the case of the second embodiment, since the rattling in the axial direction of the left and right inclined connecting members 12, 12 is reduced, the dimensional accuracy of the positioning members 15A, 15A, 15C is not required, and the shafts are not required. The length of the positioning member 15C fitted to the outside of 14 can be shortened.

In addition, in each of the above-mentioned embodiments, as the positioning structure of the pivotally mounted member, it is applied to the axial positioning of the inclined connecting member interposed between the vertical bar members of the vertical frame member of the telescopic gate. The present invention is not limited to the above-mentioned embodiments, and it goes without saying that the design can be appropriately changed within the scope of the utility model registration claim.

(Advantages of the Invention) The positioning structure for the pivotally mounted member of the present invention has one member 13
A positioning member 15A rotatable with respect to a shaft (14 or 20A) is provided between A and the pivotally mounted member 12 in an externally fitted state, and further, the pivotally mounted member 12 and the other member 1
The positioning member (15B or 15C) between 3B is formed of an annular body that can be fitted to the outside of the shaft (14 or 20A), and the positioning member (15B or 15C) made of the annular body is attached to the shaft 14. The positioning member fitting position on the shaft 14 is expanded at a position where it abuts against the side surface of the pivotally mounted member 12 to be fixed so that the positioning member (15B or 15C) is fixed to the shaft 14. Since the pivoting member 12 is positioned, the pivoted member 12 does not move to the positioning member side from the position where the positioning member (15B or 15C) is fixed, and the pivoting member 12 is axially moved. It becomes possible to reduce the rattling of the positioning members (15A, 1A).
5B or 15C) does not require the dimensional accuracy, and the positioning member (15B or 15C) can be short or small, which is different from the conventional spacer-shaped positioning member (Fig. 6). The member length can be saved compared with the positioning member (15B, 15C).
Since it is fixed by the pipe expanding method, there is an effect that the external appearance becomes better (the fixing means cannot be seen from the outside) as compared with the case where the positioning member is fixed by means such as screwing or welding.

[Brief description of drawings]

FIG. 1 is a side view of a retractable gate that employs the positioning structure of a pivotally mounted member according to a first embodiment of the present invention, and FIG. 2 is a positioning structure of a pivotally mounted member according to a first embodiment of the present invention. FIG. 3 is a cross-sectional view (II-II cross-sectional view of FIG. 1), and FIG. 3 is a cross-sectional view of the positioning structure of the pivotally mounted member according to the second embodiment of the present invention (corresponding to II-II cross-sectional view of FIG. 1). FIG. 4 is a front view of a conventional general telescopic gate, FIG. 5 is a side view of the gate of FIG. 4, and FIG. 6 is a sectional view taken along line VI-VI of FIG. 12 ... Pivoted member (tilt connecting member) 13A, 13B ... Pair of members (vertical bar member) 14, 20A ... Shaft 15A-15C ... Positioning member

Claims (1)

[Scope of utility model registration request] 1. A pivotally mounted so as to be rotatable with respect to a shaft (14) installed between a pair of members (13A, 13B) installed at a predetermined distance from each other. Positioning members (15A, 15B or 15C) are respectively arranged on both sides in the axial direction of the pivotally mounted member (12), and the pivotally mounted member (12) is axially moved with its movement restricted. The shaft (14 or 20A) is made of a round pipe that can be expanded, and the shaft (14 or 20A) is made of a circular pipe.
A positioning member (15A) that is rotatable with respect to the shaft (14 or 20A) is interposed between the two (2) in a state of being externally fitted, and further, the pivotally mounted member (12) and the other member ( Thirteen
The positioning member (15B or 15C) between B) is formed of an annular body that can be fitted to the outside of the shaft (14 or 20A), and the positioning member (1) formed of the annular body.
5B or 15C) is the positioning member (15B or 15C).
The end surface of (C) is externally fitted to the shaft (14 or 20A) at a position where the end surface abuts the side surface of the pivotally mounted member (12) located at a predetermined axial position. The positioning member fitting position portion of the shaft (14 or 20A) is expanded so that the shaft (14 or 20A) is expanded.
A positioning structure for a pivotally attached member, characterized in that the pivotally attached member (12) is fixed to A) so that the pivotally attached member (12) is positioned.