JP3162935B2 - Rotating device for half-fold gate bar - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in the technical field of a gate bar for controlling entry and exit of automobiles and human beings used in unmanned managed parking lots, railroad crossings or entrances and exits of various venues. More specifically, the present invention relates to a rotating device suitable for use in a half-fold gate bar having a half-fold type bar.

[0002]

2. Description of the Related Art A half-fold type gate bar in which a gate bar is formed in a middle-folding type has conventionally been configured as shown in FIGS. 1 and 2 of Japanese Utility Model Laid-Open No. 59-69060.

[0003] The structure of the above-mentioned conventional half-fold gate bar will be described in detail with reference to Fig. 6 attached hereto. In the figure, M is a switch, and N is a bar support attached to a rotating shaft Ma of the switch M. , BA is a hand-side bar attached to the support N, and BB is a hand-side bar BA via the joint members CA and CB.
D is a fixing bar attached to the upper surface of the joint member CB of the distal bar BB,
A wire E is stretched between the fixture D and the switch M, and when the switch M pivots the support N upward from the closed state shown by the solid line, as shown by the phantom line. The bars BA and BB on the proximal side and the distal side are turned upward while bending in a bent state at the joint members CA and CB to open the gate.

[0004]

However, in the conventional center-folding type gate bar configured as described above, the fixing tool D for attaching the wire E is mounted in a state where the fixing tool D protrudes from the upper surface of the joint member CB of the distal end bar BB. Due to this, when the gate bar is opened as shown by the imaginary line in FIG. 6, the fixing tool D projects above the position of the tip side bar BB which is opened horizontally, so that the fixture D projects between the ceiling bar RF and the fixing tool D. There is a problem that the space L for the fixture D needs to be previously opened, and it cannot be installed in a place where the ceiling RF is low and the upper part is restricted.

There is also a crossing breaker disclosed in Japanese Utility Model Laid-Open No. 57-81962, for example, in which a bar is folded so that a wire fixing member does not travel upward to open a gate. However, in the case of this level crossing breaker, since the bar is bent at two places and the whole is folded into three, the entire configuration is complicated and the cost is increased as compared with the half-fold type where the bar is bent at one place. There was a problem.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to prevent a fixture of a traction member, such as a wire, from traveling upward when a center-folding gate bar is opened upward.

[0007]

Means taken by the present invention to solve the above-mentioned technical problems are as follows.

[0008] The distal end bar is pivotally supported via a joint member on the distal end portion of the proximal bar which is opened and closed by the rotating shaft of the switch, and the switch is moved upward by the switch. When pivoted, in the center-folding gate bar which is configured to pivot upward and open the gate in a state where the tip side bar is folded in the middle,

(1) The lower end is rotatably supported on the distal end of the hand-side bar, and the upper end is located rearward of the shaft support, that is, closer to the root end of the hand-side bar. A pulling member is stretched between the upper end of the rotating lever and the switch, and the distal end of the intermediate lever rotatably supported at the intermediate portion of the rotating lever is connected to the distal end side bar. To be rotatably supported on the root end side.

(2) The distance between the rotating shaft of the switchgear and the shaft support of the joint member is A, and the vertical width of the distal end bar is B,
When the distance between the upper end of the rotating lever to which the above-mentioned traction member is attached and the traction member attachment portion of the switch is C, and the vertical distance between the rotation axis of the switch and the traction member attachment portion is D, The relationship among these A, B, C, and D is A + B ≧ C + D
It is configured to be.

(3) The holders on the hand side and the tip side are fixed to the connection ends of the hand side bar and the tip side bar, respectively.
The lower end of the rotating lever and the distal end of the intermediate lever are pivotally supported on each holder side so as to be vertically rotatable.

(4) A main joint arm having a distal end projecting from the distal end surface of the holder toward the distal end side bar is fixed to the lower side of the proximal side holder fixed to the distal end side of the proximal side bar. On the lower side of the tip-side holder fixed to the root end of the side bar, a slave joint arm having a shorter overall length than the tip-side holder is fixed, and the tip ends of these master-slave joint arms are connected to each other. To be rotatably supported at the bottom of the tip side holder.

(5) The pulling member stretched between the upper end of the rotating lever and the switch is any one of a pulling strip such as a wire, a rope or a chain, or a pulling rod such as a pipe or a round bar. It is composed of

[0014]

The respective means described in the above (1) to (5) operate as follows.

According to the means described in the above (1), the upper end of the rotating lever on which the pulling member is stretched is closer to the root end of the bar on the hand side than the shaft support of the rotating lever, that is, the switchgear. With the lower end of the rotating lever pivotally supported on the distal end side of the hand side bar, and the distal end of the intermediate lever pivotally supported on the intermediate portion of the rotating lever, the distal end of the rotating lever is positioned at the root end of the distal side bar. The front end bar can be opened and closed while maintaining the horizontal state at all times by the link mechanism pivotally supported on the side, and when the gate is fully opened, the upper end of the rotating lever equivalent to the conventional fixture is Since it does not protrude above the upper surface of the side bar, there is no need to previously provide an extra space above, and it is possible to easily install the apparatus even in a place where the ceiling is low.

According to the means described in the above (2), the above A
+ B ≧ C + D, the distance (A + B) from the rotation axis of the switch to the upper surface of the tip-side bar is also changed from the rotation axis when the switch opens both bars upward in a bent state. Since it is made equal to or longer than the distance (C + D) to the upper end of the moving lever, the upper end of the rotating lever protrudes above the front end bar when the gate is opened. To prevent that.

According to the means described in the above (3), each of the pivotal levers and the intermediate levers that pivot each time the center-bend type hand-side bar and the tip-side bar are opened and closed is connected to each bar. Since each of the levers is rotatably supported on the holder side fixed to the connection end of each of the connecting ends, it is possible to smoothly rotate each lever and open and close each bar without any trouble.

According to the means described in the above (4), the tip of the main joint arm attached to the holder of the hand side bar is protruded to the bottom of the holder of the tip side bar, and the tip side bar is moved from below. Because of the support, the opening / closing operation of the distal end bar based on the opening / closing operation of the hand side bar can be performed smoothly while always keeping the distal end side bar horizontal between the rotation lever and the intermediate lever. I do.

According to the means described in the above (5), the upper end of the rotating lever is not moved upward by using various kinds of pulling members such as wires, ropes, chains, pipes, and round bars. , Which allows the tip bar to be opened and closed horizontally.

As described above, the technical problems described above can be solved by the above-described means, and the problems of the conventional technology can be solved.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the above-mentioned pivoting device for a half-fold gate bar according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a partially omitted side view of the present invention showing a state in which the gate is closed, and FIG. 2 is a side view of the present invention showing a state in which the gate is completely opened. Numeral 1 is a switch, 2 is a bar support attached to the rotating shaft 1a of the switch 1, 3A is a hand-side bar attached to the bar support 2, and 3B is rotation of a joint member indicated by reference numeral 4. A tip bar which is pivotally supported at the tip of the proximal bar 3A by using the shaft 7 so as to be freely bent, and these two bars 3A and 3B constitute a gate bar GB.

Reference numerals 6 and 9 denote holders fixed to the respective connection ends of the bars 3A and 3B. Reference numeral 11 denotes a lower end pivotally supported by the distal end of the proximal bar 3A and an upper end formed by the switchgear 1. A support arm 1 rotatably supported at the upper end of the rotation lever 11 at a position retracted in the direction of
5 and the mounting portion 1b of the switchgear 1, the tip side bar 3B
Traction member 1 that opens and closes while always maintaining the horizontal state
4 is stretched.

As the above-mentioned pulling member 14, a pulling strip such as a wire, a rope or a chain, or a pulling rod such as a pipe or a round bar is used, but the selection is arbitrary.

A pivot 13 is rotatably supported at one end on the upper end side of the rotary lever 11 using a shaft 12b (see FIG. 2), and the other end is connected to the root end of the distal end bar 3B. These are pivoted intermediate levers, these rotating lever 11 and intermediate lever 13,
In addition, the distal end bar 3B is configured to open and close in a folded state while maintaining a horizontal state in accordance with the opening and closing operation of the hand side bar 3A by a link mechanism including the traction member 14.

Further, in FIGS. 1 and 2, A denotes a rotating shaft 1a.
And the distance from the center folding pivot 7 to the tip end side bar 3B.
(Specifically, the vertical width of the holder 9), C is the distance from the traction member mounting portion 1b to the pivot support of the rotating lever 11 to which the support arm 15 is mounted, and D is the rotating shaft 1a and the traction member mounting portion 1.
b, and the relationship among A, B, C, and D is A +
B ≧ C + D, and therefore, when the two bars 3A and 3B are completely opened as shown in FIG. 2, the distal end side bar 3 in which the upper end of the rotating lever 11 is kept horizontal.
The structure does not protrude above the upper surface of B.

FIG. 3 is an enlarged side view showing a main part of the present invention, that is, a configuration of the above-described joint member 4, and FIG. 4 is an enlarged cross-sectional view of the main part taken along line XX of FIG. In these drawings, 6b... Are screws for fastening upper end edges 6c of the right and left hand side holders 6 attached to the outside of the distal end portion of the hand side bar 3A so as to be wrapped from both right and left sides. ,
Reference numerals 5 and 5 denote main joint arms provided inside the lower edges 6e of the left and right hand side holders 6, and 6a... Are lower edges of the hand side holders 6 on the outer surfaces of the left and right main joint arms 5 and 5. 6e are screwed together with a rubber material 5T for a cushion interposed therebetween, and these are screwed together. The distal ends 5a, 5a of the main joint arms 5, 5 are provided on the proximal bar 3A. Support plates 5b, 5b protrude forward from the distal end and are provided at intermediate positions on the distal ends of the two main joint arms 5, 5 at positions facing the distal end of the hand side bar 3A. .

9b are screws for tightening and fixing upper end edges 9c of left and right tip side holders 9 attached to the outside of the root end of the tip side bar 3B so as to be wrapped from both left and right sides. The slave joint arms 9a... Provided along the outer sides of the lower edges 9e, 9e of the distal end holder 9 are the lower edges 9e, 9.
The left and right slave joint arms 8, 8 are overlapped on the outer side of e, and the inner side is a screw which tightens and integrates them with the cushioning rubber material 9T interposed therebetween. Is made shorter than the tip side holder 9 as shown in FIG.

The distal ends 5a, 5a of the main joint arms 5, 5 are pivotally supported by the pivots 7 so that the distal ends of the slave joints 8, 8 can rotate vertically. However, in this manner, the distal end side bar 3B is in a state where the support plate 5b of the main joint arms 5, 5 protrudes midway with respect to the distal end of the proximal side bar 3A as shown in FIG. At the position slightly closer to the distal end than the root end surface of the distal end side bar 3B, that is, at the position of the bottom surface supporting the root end side, the vertical bar 3B is connected by the above-mentioned rotating shaft 7 so as to be vertically rotatable. Bar 3B
Is a mechanism that can be opened and closed up and down while being supported from below.

Reference numeral 10 denotes a connecting arm mounted between the upper edges 9c, 9c of the distal holder 9 by the screws 9b..., The root end 10a of which is the distal bar 3B.
Slightly protrudes from the root end face of the base bar toward the tip end face of the hand side bar 3A.

As shown in FIG. 3, the pivoting lever 11 has a lower end 11a pivotally supported between the supporting plates 5b and 5b of the main joint arms 5 and 5 using a mounting shaft 12a so as to be pivotable up and down. The support arm 15 is pivotally supported on the upper end 11b, which is formed to be retracted from the shaft support in the direction of the switchgear 1 by using a shaft 12c. As described above, the traction member 14 is stretched between the mounting member 1b of the switch 1 and the mounting member 1b.

The other end 13a of the intermediate lever 13, which has one end 13b rotatably supported on the upper end side of the rotary lever 11 using the shaft 12b, is connected to the connecting arm 10 using the mounting shaft 12d. It is attached to the root end portion 10a so as to be vertically rotatable.

In the illustrated embodiment, the lower end 11a of the rotating lever 11 is connected to the support plate 5b of the main joint arm 5 by the shaft 12a.
, Which are rotatably mounted on the front side holder 6 between the upper edge 6c of the hand side holder 6 and the same as the connecting arm 10 mounted on the front end side holder 9 using screws 6b. The lower end 1 of the rotating lever 11 is attached to the end of the connecting arm that protrudes from the end of the connecting arm.
Even if the shaft 1a is supported by the shaft 12a, the same effect can be exhibited. Therefore, the lower end 11a of the rotating lever 11 is supported by any portion of the hand side bar 3A or the tip of the holder 6. The mounting position is arbitrary.

FIG. 5 illustrates the operation of the pivoting device for a half-fold gate bar according to the present invention. When the gate is closed, the pulling member 14, the pivoting lever 11, and the intermediate lever 13 move the hand side. Although the bar 3A and the tip side bar 3B are maintained in a straight line, when the switch 1 is operated and the hand side bar 3A is turned upward, the movement of the traction member 14 and the levers 11 and 13 causes the tip side. The bar 3B rotates upward while maintaining a horizontal state, and when the hand-side bar 3A stands upright, the tip-side bar 3B is bent at a right angle (horizontally) and the gate is completely opened.

At this time, as described above, the upper end of the rotating lever 11 does not protrude above the upper surface of the tip side bar 3B due to the relationship of A + B ≧ C + D.

[0036]

As described above, according to the pivoting device for a center-folding type gate bar according to the present invention, the pivoting device is pivoted upward while bending at the center and each of the bars on the hand side and the tip side opens the gate. ,
Since the upper end of the rotating lever to which the tow member is attached does not protrude above the top surface of the horizontally opened distal end bar, there is no need to provide more space than necessary above the gate bar, and therefore, as in underground parking lots Even if it is installed in a place where the ceiling is relatively low, the advantage that it can be used safely without causing a gate bar or the like to collide with the ceiling can be exhibited.

[Brief description of the drawings]

FIG. 1 is a partially omitted side view showing a state in which a gate bar provided with a rotation device according to the present invention is closed.

FIG. 2 is a side view when the gate bar is opened.

FIG. 3 is an enlarged side view showing a main part of the present invention.

FIG. 4 is an enlarged sectional view taken along line XX of FIG. 3;

FIG. 5 is an explanatory diagram showing a state where a gate bar is opened and closed.

FIG. 6 is a side view illustrating the configuration of a conventional gate bar.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Switcher 1a Rotating shaft 1b Attachment part of traction member 3A Hand side bar 3B Tip side bar 4 Joint member 6,9 Holder 7 Rotating shaft 11 Rotating lever 13 Intermediate lever 14 Traction member

Claims (5)

(57) [Claims] 1. A front end bar, which is vertically opened and closed by a rotating shaft of a switch, is pivotally supported via a joint member so that the front end bar can be freely bent. When pivoted upward, in the center-folding gate bar that is configured to pivot upward and open the gate with the tip-side bar bent in the middle, the lower end pivots toward the tip of the proximal bar. A towing member is freely stretched, and a pulling member is stretched between the upper end portion of the rotating lever, the upper end side of which is located rearward of the shaft supporting portion, that is, closer to the root end of the hand side bar, and the switch. And a tip end of an intermediate lever rotatably supported at an intermediate portion of the rotary lever is rotatably supported at a root end side of the distal end bar. Rotating device for gate bar. 2. The distance between the rotating shaft of the switch and the pivotal support of the joint member is A, the vertical width of the tip side bar is B, and the upper end of the rotary lever to which the pulling member is attached and the pulling of the switch. When the distance to the member mounting portion is C, and the vertical distance between the rotating shaft of the switchgear and the traction member mounting portion is D, the relationship among A, B, C, and D is A + B ≧ 2. The pivoting device for a half-fold gate bar according to claim 1, wherein the pivoting device is configured to be C + D. 3. The hand-side and tip-side holders are fixed to the respective connection ends of the hand-side bar and the tip-side bar, and the lower end of the rotating lever and the tip of the intermediate lever are attached to each of these holders. 2. The pivoting device for a half-fold gate gate bar according to claim 1, wherein each of the portions is rotatably supported by a shaft. 4. A main joint arm having a distal end protruding from the distal end surface of the holder toward the distal end side bar is fixed to a lower side of the proximal side holder fixed to the distal end side of the proximal side bar.
On the lower side of the tip-side holder fixed to the root end of the tip-side bar, a slave joint arm having a shorter overall length than the tip-side holder is fixed. 4. The pivoting device for a half-fold gate bar according to claim 3, wherein the pivoting device is rotatably supported on the bottom surface of the tip side holder. 5. A pulling member stretched between an upper end of the rotating lever and the switch is formed by a pulling line such as a wire, a rope or a chain, or a pulling rod such as a pipe or a round bar. 3. The device according to claim 1, wherein
The turning device for a half-fold gate bar described in the above.