JP4491158B2 - Telephone along the line - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a telephone line for communication installed at a predetermined interval along a railway line, a road line, and the like, and more particularly to a line telephone having an improved door.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a telephone line having the configuration shown in FIG. 2 is known.
[0003]
The lineside telephone 1 mainly includes a telephone body 2, a housing 3, an opening / closing door 4, a hinge (not shown), a hook 5, a door switch 6, and a restriction plate 7.
[0004]
The telephone body 2 is a device that includes a receiver and actually talks for communication. The housing 3 is a member for housing the telephone body 2 inside and protecting the telephone body 2 from wind and rain. The open / close door 4 is a member that is attached to the front surface of the housing 3 so as to be freely opened and closed and blocks the front surface of the housing 3. The hinge is a member that rotatably supports one side of the opening / closing door 4 on the housing 3 side. The hook 5 is a member that is attached to the other side of the opening / closing door 4 and is fixed to the housing 3 side with the opening / closing door 4 being closed. The door switch 6 is a member for connecting a line when the open / close door 4 is opened so as to make a call possible and blocking the line when the open / close door 4 is closed. The limiting plate 7 is a member for limiting the opening degree of the open / close door 4 to a predetermined angle.
[0005]
The hook 5 is connected to a rotary handle (not shown) attached to the outer surface of the open / close door 4. The user holds the rotary handle with his hand, closes the door 4 and turns the rotary handle so that the hook 5 is fitted into a hook fitting hole (not shown) provided on the housing 3 side. The open / close door 4 is fixed to the housing 3 side.
[0006]
The door switch 6 is attached to the front side of the telephone body 2 (side facing the open / close door 4). The door switch 6 is located on the front surface of the telephone main body 2 and protrudes and retracts, and when the operation shaft 6A protrudes, the line is connected to enable a call and the line is connected when the operation shaft 6A is immersed. It is comprised from the interruption | blocking mechanism part (not shown) which interrupts | blocks. The operating shaft portion 6A is biased to the side protruding by a spring or the like, and protrudes when the opening / closing door 4 is opened.
[0007]
A door switch presser 8 is provided on the inner surface of the door 4 so as to face the operation shaft 6A. When the door 4 is closed, the door switch presser 8 comes into contact with the operation shaft 6A of the door switch 6. Thus, the operation shaft portion 6A is immersed.
[0008]
The limiting plate 7 is rotatably attached to the open / close door 4 and is slidably locked to the housing 3 side. Thereby, when the opening / closing door 4 is opened, the limiting plate 7 is pulled out from the inside of the housing 3, and when it reaches the limit, it cannot be pulled out any more, and the opening degree of the opening / closing door 4 is limited by a predetermined angle.
[0009]
The line telephone 1 having the above-described configuration is installed at a predetermined interval along a railway line, a road line, and the like. An operator working along a railway line, etc., when there is a need for communication, etc., hold the rotary handle of the telephone 1 along the hand and turn it to remove the hook 5 from the hook fitting hole and open the door 4. . As a result, the operation shaft portion 6A of the door switch 6 that has been pushed in by the door switch presser portion 8 protrudes and the line is connected, and the telephone body 2 becomes ready for a call. In this state, the worker contacts the telephone body 2 with the handset.
[0010]
When the contact or the like is finished, the handset is returned to the telephone body 2, and the open / close door 4 is closed by holding the rotary handle by hand. As a result, the door switch presser 8 pushes the operation shaft 6A of the door switch 6 and the line is cut off. Next, the rotary handle is turned to fit the hook 5 into the hook fitting hole, and the open / close door 4 is fixed to the housing 3 side.
[0011]
The telephone line 1 has a configuration in which a plurality of machines are connected to a single line. For this reason, when a line failure occurs in one of the line-side telephones 1 among a plurality of line-side telephones 1 due to insulation deterioration due to wind and rain or deterioration of equipment due to forgetting to close the doors, the other line-side telephones 1 open and close the door. Even if 4 is opened, it cannot be used due to a line failure.
[0012]
[Problems to be solved by the invention]
However, in the line telephone 1 having the above-described configuration, there is a possibility that it is opened only by closing the open / close door 4. After the door 4 is closed, the door 4 cannot be fixed to the housing 3 side unless the rotary handle is turned to fit the hook 5 into the hook fitting hole. Further, the hook 5 is not fitted into the hook fitting hole unless the rotary handle is turned after the opening / closing door 4 is securely closed.
[0013]
If the hook 5 is not fitted in the hook fitting hole due to forgetting to hook the hook 5 or the like, the opening / closing door 4 may be opened by the operation shaft portion 6A biased toward the protruding side. In particular, when vibrations from trains, cars, etc. are transmitted to the telephone 1 along the line, the door 4 is easily opened.
[0014]
When the door 4 is opened, troubles due to wind and rain and deterioration of the equipment occur. Therefore, the person in charge has to go to the site to close the door 4 each time.
[0015]
The present invention has been made in view of the above-described points, and an object of the present invention is to provide a railroad telephone in which an opening / closing door is securely closed.
[0016]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a telephone line according to the first invention is a telephone line installed at a predetermined interval along a railway line or along a road line and used for communication of various matters, and a casing that houses the telephone body inside An open / close door attached to the front surface of the housing, an automatic closing hinge that supports the openable / closable door with respect to the housing and urges the open / close door in a closing direction, and the automatic closing hinge A fixing means for automatically fixing the opening / closing door closed to the housing side, and a door switch for connecting a line when the opening / closing door is opened to enable a call and for blocking a line when the opening / closing door is closed. And a restricting plate that operates the door switch in conjunction with the opening and closing door and shuts down the line when the opening and closing door is connected and closed, and the automatic closing hinge opens the opening and closing door. Close direction A coil spring for energizing, the door switch including an operation shaft portion that protrudes and retracts from the telephone body and disconnects the line, and the limiting plate moves in a direction perpendicular to the operation shaft portion. The wedge part that pushes down the operation shaft part at the beginning of closing of the door and blocks the line, and the operation shaft part pushed down by the wedge part is maintained in a state of being immersed until the door is completely closed. A switch pressing portion having a plate portion is provided.
[0017]
With the above configuration, the user opens the door when using the telephone along the line. When this open / close door is opened, the limit plate operates the door switch in conjunction with it to connect the lines. As a result, it becomes possible to make a call, and various matters are communicated. When the contact is over, close the door. At this time, the open / close door is automatically closed because it is biased in the closing direction by the automatic closing hinge. The closed opening / closing door is automatically fixed to the housing side by the fixing means. At this time, the limiting plate linked to the open / close door operates the door switch to block the line. As a result, another telephone along the line can be used. At this time, the wedge part of the switch pressing part moves in a direction perpendicular to the direction of the operation shaft part, and at the beginning of the opening and closing of the door, the operation shaft part is pushed down to cut off the line. Until the open / close door is closed , the operation shaft is kept immersed by the support plate, so that the door switch does not affect the open / close of the open / close door, and the open / close door opens due to vibration or the like. Disappears.
[0022]
A lineside telephone according to a second invention is the lineside telephone according to the first invention , wherein the fixing means is composed of two magnets or magnets and a magnetic body attached to the casing and the door and adsorbing each other. It is characterized by that.
[0023]
With the above configuration, when the open / close door is closed, the two magnets or the magnet and the magnetic body are attracted to each other, and the open / close door is fixed to the housing side.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0025]
As shown in FIGS. 1 and 3 to 5, the line telephone 11 according to the present embodiment mainly includes a telephone main body 12, a casing 13, an opening / closing door 14, an automatic closing hinge 15, and a fixing means 16. The door switch 17 and the limiting plate 18 are included.
[0026]
The telephone body 12 and the housing 13 have the same configuration as the conventional telephone body 2 and the housing 3 described above.
[0027]
The open / close door 14 is a member that is attached to the front surface of the housing 13 so as to be freely opened and closed and blocks the front surface of the housing 13. A handle 20 that is gripped when the door 14 is opened and closed is provided on the outer surface of the door 14. A suction plate 22 of a fixing means 16 to be described later is attached to the inner side surface of the open / close door 14.
[0028]
The automatic closing hinge 15 is a member for rotatably supporting one side of the opening / closing door 14 on the housing 13 and for biasing the opening / closing door 14 in the closing direction. Specifically, a coil spring is provided in the automatic closing hinge 15 and is biased in a direction to close the opening / closing door 14. This coil spring has an elastic force that can push down the operation shaft portion 17A of the door switch 17 by a wedge portion 30A of the switch pressing portion 30 described later when the door 14 is closed.
[0029]
The fixing means 16 is a member for fixing the open / close door 14 in a closed state. The fixing means 16 includes a magnet 21 and a suction plate 22. Two magnets 21 are attached to the inner surface of the side wall of the housing 13. The suction plate 22 is made of a magnetic material that is attracted to the magnet 21, and is attached to a position corresponding to the magnet 21 on the inner side surface of the open / close door 14. In addition, you may attach either the magnet 21 and the adsorption | suction board 22 to the housing | casing 13 side (opening-closing door 14 side). When the magnet 21 and the suction plate 22 are in close contact with each other, the closed door 14 is fixed to the housing 13 side.
[0030]
The door switch 17 is a member for connecting a line when the open / close door 14 is opened to enable a call and for blocking the line when the door is closed. The door switch 17 is attached to the upper side surface of the telephone body 12. The door switch 17 has an operating shaft portion 17A that protrudes and protrudes on the upper side surface of the telephone body 12, and connects the line when the operating shaft portion 17A protrudes to enable a call and cuts the line when immersed. And an intermittent mechanism portion (not shown). The operating shaft portion 17A is always urged upward, which is the protruding side.
[0031]
The restriction plate 18 is a member for restricting the opening degree of the open / close door 14 to a predetermined angle and operating the door switch 17. A base end portion (right front end portion in FIG. 1) of the restriction plate 18 is attached to the open / close door 14 so as to be rotatable. The front end side of the limiting plate 18 is slidably locked to a locking bracket 24 attached to the upper side surface of the telephone body 12. The locking bracket 24 is formed by bending a belt-like plate material into a U-shape, and both ends are fixed to the upper side surface of the telephone body 12. As a result, a rectangular support hole is formed by the locking bracket 24 and the upper side surface of the telephone body 12, and the limiting plate 18 is slidably inserted into the support hole. A support pin 25 is provided on the lower surface of the locking bracket 24. Two support pins 25 are provided at a distance slightly larger than the width of the limiting plate 18 to guide the reciprocating movement of the limiting plate 18. Further, the one support pin 25A is fitted to a stopper portion 28 of the restriction plate 18 described later, thereby supporting the opened door 14 so as not to be closed.
[0032]
A limit pin 27 and a stopper portion 28 are provided at the tip of the limit plate 18. The restriction pin 27 is a member for restricting the opening / closing door 14 so as not to open beyond the set opening degree. The restriction pin 27 is located at one of the front ends of the restriction plate 18 (on the right rear side in FIG. 5), protrudes upward, and comes into contact with the locking fitting 24. As a result, the limit pin 27 comes into contact with the locking fitting 24 to limit the movement of the limit plate 18 so that the open / close door 14 stops at the set opening. The stopper portion 28 is a portion for supporting the open / close door 14 in an open state. The stopper portion 28 is located on the other end of the limit plate 18 (on the left side of the limit pin 27 in FIG. 5), and is formed by cutting it into a bowl shape. The stopper portion 28 is fitted to the one support pin 25A, thereby supporting the opened door 14 so as not to be closed.
[0033]
A switch presser 30 is provided on the lower surface of the limiting plate 18. The switch pressing portion 30 is a member for pressing the operation shaft portion 17A of the door switch 17. The switch pressing portion 30 is composed of a wedge portion 30A and a support plate portion 30B. The wedge part 30A is a member for contacting and depressing the operating shaft part 17A of the door switch 17 to cut off the line. The support plate portion 30B is a member for supporting the operation shaft portion 17A of the door switch 17 pushed down by the wedge portion 30A in that state. The support plate 30B is formed in a flat plate shape having a constant thickness. The thickness of the support plate portion 30B is set to a thickness that allows the operation shaft portion 17A to be kept immersed while the upper side thereof is supported by the locking metal fitting 24.
[0034]
The switch pressing portion 30 is provided in the vicinity of the opening / closing door 14 on the lower surface of the limiting plate 18. Specifically, by closing the open / close door 14, the switch presser 30 is positioned immediately above the door switch 17, and the operation shaft 17 </ b> A is pushed down to shut off the line, and the open / close door 14 is opened to open the switch presser 30. Is displaced from directly above the door switch 17 and is provided at a position to connect the line by projecting the operating shaft portion 17A.
[0035]
[Operation]
With the above configuration, when the user needs to contact the user, the user holds the handle 20 of the lineside telephone 11 and pulls it forward. Thereby, the magnet 21 and the adsorption plate 22 of the fixing means 16 are separated, and the open / close door 14 is opened. When the opening / closing door 14 is opened, the limiting plate 18 is pulled out, the switch presser 30 is displaced from directly above the door switch 17, and the operation shaft 17 </ b> A of the door switch 17 protrudes upward.
[0036]
Further, when the opening / closing door 14 is opened, the limiting pin 27 comes into contact with the locking member 24 at the tip of the limiting plate 18 and the opening / closing door 14 cannot be opened any more. In this state, the stopper portion 28 is fitted to the support pin 25A to stop the opening / closing door 14 from being closed.
[0037]
As a result, the operation shaft portion 17A of the door switch 17 protrudes upward to connect the line, and the telephone body 12 becomes ready for a call. In this state, the user contacts the telephone body 2 with the handset.
[0038]
When the communication is completed, the handset is returned to the telephone body 12, and the stopper portion 28 is removed from the support pin 25A. Thereby, the open / close door 14 is automatically closed by the automatic closing hinge 15. Further, the magnet 21 and the suction plate 22 of the fixing means 16 are attracted to each other, and the open / close door 14 is fixed to the housing 13 side.
[0039]
Further, when the open / close door 14 is closed, the limiting plate 18 is supported by the locking bracket 24 and slides to the back side, and the operating shaft portion 17A of the door switch 17 is pushed down and supported by the wedge portion 30A of the switch pressing portion 30. It is supported by the plate part 30B. As a result, the line is interrupted and the other telephone 11 can be used.
[0040]
[effect]
(1) As described above, even when the opening / closing door 14 is not completely closed due to carelessness of the user, the opening / closing door 14 is reliably closed by the automatic closing hinge 15 and the fixing means 16. That is, there is no forgetting to close. As a result, there is no need for restoration work, and it is possible to prevent line failure and deterioration of equipment due to forgetting to close the door 14.
[0041]
(2) Furthermore, the door 14 is always urged in the closing direction by the automatic closing hinge 15 and is fixed to the housing 13 side by the fixing means 16, so that vibrations from trains, cars, etc. are transmitted. However, the opening / closing door 14 will not open.
[0042]
[Modification]
(1) In the above embodiment, the door switch 17 is provided on the upper side surface of the telephone body 12, but it may be provided on the side surface of the telephone body 12 as shown in FIG. 6. FIG. 6 is a perspective view showing the telephone body 12. Here, for simplification of description, parts unnecessary for the description of this modification, such as number keys and receivers, are omitted.
[0043]
The door switch 31 according to this modification is provided on the right side surface of the telephone body 12. The door switch 31 includes a restriction plate 32, a restriction plate support portion 33, and a door switch portion 34.
[0044]
The limiting plate 32 is supported by the limiting plate support portion 33 and the door switch portion 34 so as to appear and disappear. The front end of the limiting plate 32 (the end on the opening / closing door 14 side) is in contact with the inner surface of the opening / closing door 14. As a result, when the open / close door 14 is completely closed by the automatic closing hinge 15 and the fixing means 16, the limit plate 32 is pushed in on the inner surface of the open / close door 14, and the door switch unit 34 blocks the line. . The restriction plate 32 is urged so as to protrude toward the opening / closing door 14. In addition, a normal limiting plate that limits the opening degree of the opening / closing door 14 is the same as the conventional limiting plate 7 described above.
[0045]
The limiting plate support portion 33 is a member for supporting the limiting plate 32 so as to be able to appear and retreat in the axial direction (reciprocation is possible). The restriction plate support portion 33 is formed in a U shape so as to cover the restriction plate 32.
[0046]
The door switch part 34 is provided so as to support the base end part of the restriction plate 32 and to interlock with the operation of the restriction plate 32. That is, the line is intermittently operated by the movement of the limiting plate 32. In this door switch part 34, the door switch similar to the door switch 17 of the said embodiment is provided. The operation shaft portion of the door switch comes into contact with the base end portion of the restriction plate 32 and is brought into and out of the movement by the movement of the restriction plate 32.
[0047]
With the above configuration, when an operator or the like opens the open / close door 14 for communication or the like, the restriction plate 32 protrudes, and the operation shaft portion of the door switch portion 33 protrudes in conjunction with this. As a result, the line is connected and the operator etc. communicates. When the door 14 is closed after the contact or the like is finished, the door 14 is completely closed by the automatic closing hinge 15 and the fixing means 16. At this time, the restriction plate 32 is pushed in on the inner surface of the open / close door 14, and the operation shaft portion of the door switch portion 33 is pushed in. As a result, the line is blocked.
[0048]
Even in the case of the line telephone having the above-described configuration, the same operations and effects as the above-described embodiment can be obtained.
[0049]
(2) In the above embodiment, the door switch 17 is provided on the upper side surface of the telephone body 12, but it goes without saying that the door switch 17 may be provided on the lower side surface of the telephone body 12.
[0050]
(3) In the above embodiment, the fixing means 16 is constituted by the magnet 21 and the suction plate 22 made of a magnetic material, but it may be constituted by two magnets. Also in this case, the same operations and effects as the above embodiment can be achieved.
[0051]
【The invention's effect】
As described above, the line telephone according to the present invention can provide the following effects.
[0052]
(1) Even if the user forgets to close the door due to carelessness, etc., the door can be closed securely by the automatic closing hinge and fixing means, preventing unusable, wind and rain problems, and equipment deterioration. can do.
[0053]
(2) The open / close door is always urged in the direction of closing with an automatic closing hinge and is fixed to the housing side by a fixing means, so that the open / close door opens even when vibrations from trains, cars, etc. are transmitted. Nothing will happen.
[Brief description of the drawings]
FIG. 1 is a perspective view of a main part showing a railway phone according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a conventional rail phone.
FIG. 3 is a perspective view showing a railway phone according to an embodiment of the present invention with its open / close door opened.
FIG. 4 is a perspective view showing a railway phone according to an embodiment of the present invention in a state where an opening / closing door thereof is closed.
FIG. 5 is a perspective view of a principal part showing a door switch portion of a railway telephone according to an embodiment of the present invention.
FIG. 6 is a perspective view showing a telephone body according to a modification.
[Explanation of symbols]
11: Line telephone 12: Telephone main body 13: Case 14: Opening / closing door 15: Automatic closing hinge 16: Fixing means 17: Door switch 17A: Operation shaft 18: Limiting plate 20: Handle 21: Magnet 22: Adsorption plate 24: Locking bracket 25: Support pin 27: Limit pin 28: Stopper portion 30: Switch pressing portion 30A: Wedge portion 30B: Support plate portion 31: Door switch 32: Limit plate 33: Limit plate support portion 34: Door switch portion

Claims (2)

In line telephones that are installed at regular intervals along railway lines and road lines and are used for communication of various matters,
A housing that houses the telephone body, an opening / closing door attached to the front surface of the housing, and supporting the opening / closing door so as to be openable / closable with respect to the housing, and urging the opening / closing door in a closing direction. An automatic closing hinge, a fixing means for automatically fixing the opening / closing door closed by the automatic closing hinge to the housing side, and when the opening / closing door is opened, a line is connected to enable a call and is closed. A door switch that sometimes cuts off the line, and a limit plate that operates the door switch in conjunction with the opening and closing door to cut off the line when the opening and closing door is connected and closed,
The automatic closing hinge includes a coil spring that biases the opening / closing door in a closing direction,
The door switch includes an operation shaft portion that appears and disappears from the telephone body to interrupt the line,
The restriction plate moves in a direction perpendicular to the direction of the operation shaft, and a wedge portion that pushes down the operation shaft portion at the beginning of closing of the opening / closing door to interrupt the line, and the wedge portion is pushed down by the wedge portion. A railroad telephone comprising a switch pressing portion having a support plate portion that maintains an operation shaft portion in a state of being immersed until the opening / closing door is closed . In the line telephone according to claim 1,
A railroad telephone characterized in that the fixing means is composed of two magnets or magnets and a magnetic body attached to the casing and the door respectively and adsorbing each other.

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