JP3582221B2 - Apparatus and method for selecting spring for shutter - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a shutter spring selecting apparatus and method for selecting a spring used for a shutter.
[0002]
[Prior art]
FIG. 6 is a front sectional view showing a spring provided inside the shutter case 30.
Since the slats constituting the shutter have a predetermined weight, a spring 31 is provided in the basket. This basket indicates an internal space formed by the winding wheel 33 and the connecting rod 33a.
The springs 31 are formed in a coil shape. In the illustrated example, the springs 31 are arranged one by one in a symmetrical basket. One end 31a of each spring 31 is fixed to the fixed rod 35, and the other end 31b is The slat 32 is connected to a take-up wheel 33 that takes up the slat 32.
[0003]
By providing the spring 31, the shutter can always be cancelled by its own weight, regardless of the open / closed state of the shutter, so that the shutter can be opened with a small force. And the load on the switch 34 can be reduced. At the same time, the load during manual opening and closing operations can be reduced.
[0004]
The spring 31 has a spring force adapted to the shutter based on the type of each shutter, the width and height of the opening, and the like.
[0005]
[Problems to be solved by the invention]
For this reason, it is necessary to select a spring 31 having a spring force suitable for each shutter, such as a difference in the opening, but this spring depends on the material (spring type), wire diameter, winding diameter (width), length, and number of turns. Differently, the selection took time.
Further, since the torque generated at the time of opening and closing differs for each shutter, and the torque differs at the time of opening and closing, the torque required for opening and closing the shutter is calculated in order to select a suitable spring 31 in consideration of these torques. In addition, the spring force of the selected spring 31 is applied to determine the suitability, and the operation of selecting the spring 31 takes a lot of time.
[0006]
The spring 31 must be selected to have a width and a length that can be accommodated in the basket. Conventionally, even after the spring 31 having an appropriate spring force is selected, even if the spring 31 is to be housed in a car, the spring 31 may be too large to be accommodated in the car.
In this case, the spring 31 must be selected again from the beginning, and the design takes time.
[0007]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is possible to easily select springs each having a frontage, a height, and a torque required for opening and closing, respectively, which are different from each other, and at the same time, to obtain a reliable spring selection result. It is an object of the present invention to provide an apparatus and a method for selecting a spring for a shutter capable of improving efficiency and improving efficiency from shutter design to manufacturing.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a shutter spring selection device of the present invention is a shutter spring selection device that selects a spring provided in a shutter open / close drive system,
Input means 1 for externally inputting selection conditions such as shutter specifications for spring selection;
Storage means 3 for storing a plurality of shutter specifications and spring data;
Selecting means 2 for selecting a spring conforming to the shutter specification using data stored in the storage means based on an input of the input means 1;
Output means 4 for externally outputting the data of the spring selected by said selection means 2.
[0009]
Further, the selecting means 2 is provided with a torque balance check unit 14 for evaluating the torque value of the selected spring with respect to the reference torque value at the time of opening and closing the shutter based on the shutter specification using a balance check diagram. be able to.
[0010]
Further, the data of a plurality of shutter specifications and springs stored in the storage means 3 can be updated by an external input.
[0011]
In addition, the selection means 2 displays the shape of the basket for storing the spring based on the shutter specification and the shape of the selected spring virtually at the arrangement position in the cage by graphically displaying the shape.
The storage state simulation unit 15 for evaluating the storage state of the spring in the car may be provided.
[0012]
In addition, the storage state simulation unit 15 can be configured to perform a special display indicating that the storage is impossible when the outer diameter of the selected spring is larger than the outer diameter of the car.
[0013]
The input means 1 and / or the output means 4 are provided with communication means 1b and 4d for communicating with an external device, and selection conditions are input and selected through the communication means 1b and 4d. The data of the spring may be output.
[0014]
The method of the present invention is a shutter spring selecting method for selecting a spring provided in a shutter opening / closing drive system,
A first step in which shutter specifications and the like for selecting a spring are input;
A second step of reading a default value of data corresponding to the corresponding shutter specification from the storage unit based on the input;
A third step of selecting a spring conforming to the shutter specification based on data corresponding to the shutter specification;
It is characterized by having.
[0015]
A fourth step of evaluating a torque value of the spring selected in the third step using a balance check diagram indicating a reference torque value necessary for opening and closing the shutter;
A fifth step of storing and simulating the spring selected in the third step by virtually displaying the spring at an arrangement location in the car;
May be provided.
[0016]
In addition, when either the result of the balance check displayed in the fourth step or the result of the storage simulation in the fifth step does not satisfy the evaluation criteria, a new spring is selected.
A sixth step of changing and setting data of predetermined items related to spring selection among default values of data corresponding to shutter specifications already read in the second step;
A seventh step of re-selecting a spring based on the data partially changed and set in the sixth step;
May be provided.
[0017]
According to the above configuration, when selection conditions such as shutter specifications are input from the input means 1, the selection means 2 selects a spring conforming to the shutter specifications from the storage means 3 using the data of the shutter specifications and the springs, and outputs the output means 4 Output from
The torque balance check unit 14 provided in the selection means 2 evaluates whether or not the torque value of the selected spring matches the reference torque value at the time of opening and closing the shutter using a balance check diagram.
The storage state simulation unit 15 evaluates whether or not the selected spring can be stored as a virtual image in the basket of the shutter, and if it cannot be stored, a special display is performed. The occurrence of a problem can be easily grasped by displaying these drawings.
If the evaluation in the torque balance check unit 14 and the storage state simulation unit 15 does not satisfy the evaluation criteria, the selection condition is changed and input from the input unit 1 so that the selection unit 2 is adapted to the shutter again. Select the spring to be used.
The selected spring is stored in the corresponding cell part of the spring selection table, and thereafter, by simply opening this cell, data of the selected spring can be obtained.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a block diagram showing a spring selecting device for a shutter according to the present invention. This device includes a general-purpose computer device and software that is incorporated in the computer device and performs a predetermined execution process.
[0019]
The apparatus is roughly composed of an input unit 1, a selection unit 2, a storage unit 3, and an output unit 4.
The input unit 1 includes an operation unit 1a and a communication unit 1b, and data for operating the apparatus is externally input. The operation unit 1a includes input operation devices such as a keyboard and a mouse. The communication unit 1b receives data from an external device via a communication line, a LAN, and a connection cable. This communication means 1b is not limited to input of data for selecting a spring, which will be described later, but can also include control data for remotely operating the apparatus externally.
The selecting means 2 is composed of an MPU or the like and executes a processing program for selecting a spring based on software.
[0020]
The storage means 3 stores selection data for each type of spring selected in advance, and includes a shutter DB 3a in which items of each part of the shutter are stored in a data format, and a spring DB 3b in which items of the spring are stored in a data format. .
The shutter DB 3a and the spring DB 3b can be taken in and / or taken out of the storage means 3 from the external device via the communication means 1b and 4d in accordance with the master update, and can be partially deleted and updated.
[0021]
The output unit 4 stores a display unit 4a such as a CRT for displaying the operation contents of the selection unit 2 and the selection result on the screen, a drawing unit 4b such as a plotter for drawing each drawing for selection, and the selection result in an FD or the like. It is composed of a storage medium 4c for external output. The communication unit 4d transmits data to an external device via a communication line, a LAN, and a connection cable.
These communication units 1b and 4d perform data transmission (transmission / reception) with the same / or different external devices according to a predetermined communication procedure. This data transmission is performed using the same / or different transmission lines.
[0022]
Data externally input to the input unit 1 is output to the input unit 6 of the selection unit 2. The input unit 6 outputs the operation signal to the input item setting unit 7 or the selection condition setting unit 8 for each content of the operation signal.
In the selection condition setting section 7, selection conditions for spring selection are set.
As the selection condition, each item of the shutter provided with the spring (manual / electric shutter, inner winding / outer winding) is selected and set.
With this setting, a basic setting for selecting a spring for a certain shutter is made.
[0023]
As will be described later, one spring selection table is created corresponding to the shutter set as an item according to the basic setting. In this spring selection table, a plurality of cells are provided for each frontage and height. Can be
Therefore, in order to select the most suitable spring for a shutter having a specified frontage and height (corresponding to one cell), the selection condition setting unit 7 inputs the items of the frontage and height to the input means 1. Is set by
[0024]
The input item setting section 8 selects and sets a type of a winding wheel, a type of a slat, and a type of a drainer.
These are selected and set from various items stored in the storage unit 3 in advance.
Items relating to the shutter (slat type, wheel type, basket type, drainer type, shock absorber, storage type, etc.) are selected and set from the shutter DB 3a.
Each item (spring type, winding diameter table) concerning the spring is selected and set from the spring DB 3b.
Each item set by the selection condition setting unit 7 and the input item setting unit 8 is output to the calculation unit 10, and the optimal spring for this shutter is selected.
[0025]
Next, each configuration of the arithmetic unit 10 will be described.
The spring selecting unit 11 selects a spring for the shutter set by the selection condition setting unit 7 using each item set by the input item setting unit 8.
The input item setting unit 8 sets the minimum items necessary for selection (winding wheel type, slat type, draining type) by inputting to the input means 1. For other items, default values (stored basic values) of the shutter DB 3a and the spring DB 3b are set.
As will be described later, after the spring selection processing, the default value is changed and set, and the spring selection can be performed again.
[0026]
The spring selection unit 11 selects a spring having a spring torque value balanced with the items set based on the shutter (slat weight, stress, etc.).
A plurality of types of springs to be selected are prepared in advance, and data (outer diameter, number of turns, spring torque value, etc.) of each spring is stored together with an identification number.
The spring selecting unit 11 specifies an optimal spring identification number. As the identification number, a product code or the like used in a manufacturing department or the like can be used.
[0027]
The spring selection table creating unit 12 stores the data of the selected spring in the spring selection table.
As shown in FIG. 2, the spring selection table is set in the form of a matrix for each of the shutters that have been basically set, for each of the opening (horizontal axis) and the height (vertical axis) of the opening of the shutter. A certain frontage and height position is regarded as one cell.
The data of the selected spring is stored in the cell at the frontage and height of the opening as the basis for selection. For example, the location A in the drawing stores data of a spring provided on a shutter having a frontage (W) of more than 2.0 m and less than 2.2 m and a height (H) of more than 2.4 m and less than 2.6 m. Cell.
[0028]
The output unit 13 externally outputs data of the selected spring and the spring selection table to the output unit 4.
The spring selection table created by the spring selection table creation unit 12 can be output in various forms by the output unit 4. For example, the display unit 4a displays the same state as in FIG. Is displayed on the screen.
The stored spring data can be obtained by performing an operation of opening a cell corresponding to the frontage and height.
[0029]
The torque balance check unit 14 checks the spring torque value of the spring selected by the spring selection unit 11 using a balance check diagram.
The balance check diagram is shown in FIG. In this balance check diagram, the horizontal axis represents the rotation speed N of the winding wheel, and the vertical axis represents the torque value.
In this balance check diagram, broken lines indicated by two upper and lower solid lines show the torque values OT and CT at the time of opening and closing, respectively, obtained based on the item setting of the shutter. In general, the opening and closing directions of the shutter differ between when the shutter is opened and when the shutter is closed, and the applied load is different.
[0030]
These reference torque values OT and CT are calculated for a plurality of torque values (for example, M0 to M9, etc.) every N rotations of the winding wheel by inputting conditions such as frictional force and arm length to the shutter curtain fulcrum. The result is used.
The torque value ST of the selected spring is preferably set such that the shutter is in an equilibrium state (a state in which the urging force does not act in any of the upward and downward directions) in both the opening and closing states. It is necessary that the torque value be close to any of the torque values OT and CT indicated by the polygonal line at the time and the closing time (preferably, an intermediate value within the OT and CT range).
The torque balance check unit 14 determines whether or not the torque value ST of the selected spring with respect to the open and closed torque values OT and CT is within a certain range, as described later.
[0031]
As described above, the torque balance check unit 14 performs a spring balance check by comparing the torque of the selected spring with the torque required for opening and closing the shutter using the balance check diagram. It can be confirmed on the screen display of the display unit 4a.
[0032]
The storage state simulation unit 15 expands and displays the selected arrangement state of the springs on the drawing. Specifically, as shown in FIG. 4, the arrangement state of the outer diameter (length and width) of the car is virtually displayed on the basis of the selected car type of the shutter DB 3a. Expand and display the outer diameter (length and width) of the selected spring. In the illustrated example, the springs are indicated by dotted lines.
[0033]
The length and width of these cages and springs are displayed numerically at necessary places. For example, in FIG. 4, D and D1 indicate the length and width of the entire car, and E indicates the length of each of two cars formed between a total of three winding wheels. L indicates the length of each selected spring, and d1 indicates the thickness of the fixed shaft.
The storage state simulation unit 15 can confirm whether or not the selected spring can be stored in the basket on a screen display of the display unit 4a or the like.
Here, the selected spring has an inner diameter larger than d1, has a length shorter than E, and can be stored in the basket only when it is narrower than D1, and the storage state simulation unit 15 If any of these conditions are not satisfied, it is determined that storage is not possible.
[0034]
Next, the operation of the apparatus selection processing according to the above configuration will be described with reference to the flowchart of FIG.
First, each item of shutter specifications (manual / electric shutter, inner / outer winding, frontage and height of the opening) is input to the selection condition setting unit 7 via the input means 1 (SP1). As a result, the basic settings for creating the spring selection table are made, and the position of the corresponding cell in the spring selection table is determined.
[0035]
Next, more detailed items are input and set for the shutter in which the above-mentioned specifications are basically set (SP2).
The items of the winding wheel type, the slat type, and the draining type are set by the input of the input unit 1, and the other items are stored in advance in the shutter DB 3a and the spring DB 3b. The default values of type, winding diameter table, basket type, shock absorber, type of fit, etc.) are read.
[0036]
Next, the spring selecting unit 11 of the calculating unit 10 selects an optimum spring for the shutter based on the setting contents of the selecting condition setting unit 7 and the input item setting unit 8 (SP3). In selecting a spring, a spring suitable for the type, frontage, and height of the shutter is selected based on the input and set items.
[0037]
The selected spring is set and stored in the spring selection table creating unit 12 in the corresponding frontage and height cell portion of the spring selection table shown in FIG.
[0038]
Next, characteristics when the selected spring is used for the shutter are evaluated. In this evaluation work, a balance check of the torque characteristics of the selected spring and a storage state simulation are performed.
The balance check of the torque characteristic is performed by activating the torque balance check unit 14 by an input to the input unit 1. The torque balance check unit 14 creates a balance check diagram shown in FIG. 3 by applying the torque characteristics of the selected spring to the torque characteristics of the shutter (SP4).
[0039]
The reference torque values OT and CT required for opening and closing the shutter are compared with the torque characteristics ST of the selected spring according to the balance check diagram, and the torque characteristics ST are within a certain range with respect to the reference torque values OT and CT. Is located, it is determined that the torque characteristic of the spring is suitable for the shutter, and the process can proceed to the next storage state simulation (SP5-YES).
[0040]
The storage state simulation is performed by activating the storage state simulation unit 15 based on the input to the input unit 1. The housed state simulation unit 15 simulates a state in which the springs are virtually arranged in a plane in the car, as shown in FIG. 4, based on the dimensions of the car and the dimensions of the springs (SP6).
At this time, for example, in the case of a shutter having a configuration in which two springs are housed in a cage as shown in the drawing, each spring has a length corresponding to the entire length of the spring, with one end facing inward from the winding wheel and the other end facing inward. It is virtually displayed.
[0041]
When the selected spring is displayed as being stored in the basket, the storage state simulation unit 15 determines that the spring can be arranged on the shutter (SP7-YES).
When the outer diameter (length and width) of the selected spring is larger than the outer diameter (length and width) of the basket and cannot be stored, the storage state simulation unit 15 sets the spring to a different color for the basket. (For example, red) is displayed in a state where the spring is easily visible, a window display indicating that storage is not possible, a character display is performed, and a special display is provided for easily viewing the state where storage is not possible.
[0042]
The balance check diagram and the storage state simulation have a layered structure and are created in response to the selection result of the spring selection unit 11. One of them is activated first by input to the input means 1. It can be performed in any order.
[0043]
As described above, when the work of confirming the selected spring is completed normally, the spring data and identification number are set in the corresponding cells of the spring selection table, and the torque characteristics are set in the balance check diagram. Stored inside the device.
The selected spring can be output to the output means 4 as a spring selection table and a balance check diagram (SP8).
The output means 4 can output the spring selection table and the balance check diagram from the drawing unit 4b such as a plotter, in addition to the display unit 4a which is a display screen at the time of the operation.
[0044]
The selected spring can copy the identification number and data indicating the data (outer diameter, number of turns, spring torque value, etc.) to the storage medium 4c such as the FD.
This storage medium 4c can be used as it is as data for spring production in the manufacturing department. When this apparatus is provided in the design department, data can be easily carried to the manufacturing department via the storage medium 4c, and the work can be made more efficient.
Also, when an external device is provided in the manufacturing section, data of the selected spring can be easily transmitted via the communication means 4d via the communication means 4d of the present apparatus.
[0045]
By the way, in the spring balance determination (SP4), a part of the torque characteristic ST of this selected spring (a part indicated by a symbol A shown by a dashed line) is compared with the torque values OT and CT at the time of opening and at the time of closing. When the torque exceeds the predetermined range at the upper end position, the torque balance check unit 14 determines that the selected spring does not satisfy the evaluation criterion, and is in a state where it cannot be actually used (SP5-NO).
[0046]
Here, in a general shutter, the torque values OT and CT at the time of opening and at the time of closing are not linear, but are inclined near the upper end position. On the other hand, the selected spring generates a linear torque, and the torque characteristic ST becomes linear. For this reason, a certain range is set for the torque values OT and CT at the time of opening and at the time of closing, and it is determined whether or not the torque characteristic ST of the selected spring has exceeded the certain range. For example, it is determined that the spring having the torque characteristic ST as shown in FIG. 3 is within a certain range, and it is determined that the spring having the torque characteristic ST deviated significantly upward cannot be used.
Thus, by displaying the drawing using the balance check diagram, the torque balance of the selected spring can be easily grasped, and when a problem occurs, it can be easily extracted.
[0047]
In response to this, the spring selecting unit 11 is activated, and sequentially selects another rank (for example, a spring one rank lower).
Alternatively, the number of selection condition items is set to be increased and the spring selection process is performed again. Specifically, the input item setting unit 8 changes and sets a part of the selection items using the default values by inputting to the input unit 1 (SP10).
[0048]
In the spring storage state simulation (SP6), when the evaluation criterion is not satisfied (SP7-NO), that is, when the spring cannot be stored in the basket, for example, the selected spring is displayed on the screen of the display unit 4a. Are long and the springs are in contact with each other.
Here, the spring that cannot be stored in the car is changed to a display color that can be distinguished from the car and can be easily recognized, such as reverse display or red.
Thus, by displaying the basket and the spring in the storage state simulation, the storage state of the selected spring can be easily grasped, and when a problem occurs, it can be easily extracted.
[0049]
If either one of the selected spring balance check and the stored state simulation does not satisfy the evaluation criteria, some of the items for spring selection are changed and set in the input item setting section 8 and the spring selection section 11 is set. Spring selection is performed again.
This item change may be performed, for example, by changing the number of turns, wire diameter, spring type, number of springs read from the spring DB 3b with default values, changing the basket type read from the shutter DB 3a with default values, or one or more. This is performed by changing and inputting a plurality of items from the input means 1. Specifically, the operator operates the external device via the operation unit 1a or the communication unit 1b to input the change.
[0050]
The change is performed in a state where the data of the item corresponding to each layer (balance check or storage state simulation) is displayed in a list on the screen, and a part of these items is designated and changed and input (SP11). The input to the input means 1 can be performed while confirming each step, and correction can be performed again (SP12-NO) even after the item change input.
As this change input, in addition to the above-mentioned default value change setting, the input item setting unit 8 is configured to prepare a selection item assumed to be changed in advance and a value to be changed. It can also be done in the form.
[0051]
Regardless of the change input, the spring selecting unit 11 selects a spring again with some items changed in the data based on the previous selection (SP3). As described above, the balance check and the storage state simulation are performed again in SP4 and SP6.
The balance checking unit 14 and the storage state simulation unit 15 are configured to display and output the results of the balance check and the storage state simulation on the display unit 4a of the output unit 4, and the operator views and evaluates the display screen. It may be.
By changing the item setting and selecting the spring again, a spring satisfying the evaluation criteria of the balance check and the storage simulation can be efficiently selected in a shorter time.
[0052]
As described above, when the optimal spring for the shutter having the predetermined width and height is selected, the identification number and data of the selected spring are stored in the corresponding cell of the spring selection table.
Then, for shutters of similar specifications having different widths and heights, the data of the springs can be stored in the corresponding cell portions by executing the same steps as the above-described processing, and the data for each width and height can be stored. By performing the above-described processing, the data of the optimal spring for the shutter having the frontage and the height is stored in each frontage and the height (each cell) of the shutter (single spring selection table) having the same specification. become.
For a shutter having a different specification, a different spring selection table will be newly created.
[0053]
In the spring selection table, the data and identification number of the spring selected for each frontage and height cell are set and stored. After that, the spring selection table for the same shutter is opened and desired. The data of the selected optimal spring can be obtained only by opening the cell at the frontage and height. Needless to say, at this time, there is no need to perform the spring selection processing again in the arithmetic unit 10.
According to this device, even a beginner can easily obtain spring data simply by opening a cell without performing complicated spring selection work.
[0054]
As a result, the shutter manufacturing department can obtain the data of the selected optimal spring simply by opening the cell for the shutter with the desired frontage and height, and can immediately start manufacturing the shutter.
If an external device is provided in the manufacturing section, data of the selected spring can be easily received not only through the storage medium 4c but also through the communication means 4d.
Furthermore, if the external device is configured to operate this device via the communication means 1b, the manufacturing department will require the corresponding frontage and height (cell) in the spring selection table storing the required spring data. Can be easily obtained by simply opening.
[0055]
【The invention's effect】
According to the present invention, when a selection condition such as a shutter specification is input from an input unit, a spring suitable for the shutter is selected and data is output to a screen of an output unit, so that a frontage, a height, and a torque required for opening and closing are reduced. A spring suitable for each different shutter can be easily selected, and the reliability of the spring selection result can be improved.
By providing the torque balance check unit in the selection means, it is possible to compare the torque value of the selected spring with a reference torque value at the time of opening and closing the shutter using a balance check diagram to determine suitability for the shutter.
Further, by providing the storage state simulation unit, the selected spring is virtually displayed as a drawing in the basket, and it is possible to determine whether or not the storage is possible.
When the evaluation is not satisfied by either the balance check or the stored state simulation, the selecting means reselects the spring based on the change of the selection condition.
[0056]
Each shutter has a different frontage and height, torque required for opening and closing, and arrangement of the cage.However, when selecting a spring again, the balance check is performed after the torque balance check and the storage state simulation are performed. Just by looking at the drawing and the drawing display of the storage simulation, it is possible to easily grasp the problems that have occurred and take appropriate measures, and select a spring that satisfies these evaluations and fits the shutter in a short time. And the shutter design can be performed efficiently.
Further, since the data of the selected spring can be easily output to the outside via the storage medium of the output means or the communication means, the exchange of the spring data between the design department and the manufacturing department can be easily performed.
The data of the selected spring is stored in each cell part of each frontage and height of the spring selection table, so the spring data necessary for manufacturing the shutter can be obtained by simply opening this cell part. This device can be easily obtained, and this device contributes to the improvement of the work efficiency of the manufacturing department, which is not limited to the improvement of the work efficiency of the design department, and achieves the efficiency of the overall work process of shutter production. What you get.
[0057]
In addition, when a new spring is selected, a general default value stored in the storage unit is used, so that the spring can be easily selected with a small number of inputs, thereby improving operability and reducing erroneous operations. . In addition, since the problem can be easily grasped by the drawing display based on the torque balance and the storage state simulation, even a beginner can perform a spring selecting operation which was conventionally performed only by a skilled person who required specialized knowledge.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a spring selection device of the present invention.
FIG. 2 is a diagram showing a display state of a spring selection table.
FIG. 3 is a diagram showing a display state of a balance check diagram.
FIG. 4 is a diagram showing a display state of a storage state simulation.
FIG. 5 is a flowchart showing a spring selecting step of the present apparatus.
FIG. 6 is a front sectional view showing a spring provided in the shutter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Input means, 2 ... Selection means, 3 ... Storage means, 3a ... Shutter DB, 3b ... Spring DB, 4 ... Output means, 4a ... Display part, 4b ... Drawing part, 4c ... Storage medium, 6 ... Input part, 7: Selection condition setting unit, 8: Input item setting unit, 10: Operation unit, 11: Spring selection unit, 12: Spring selection table creation unit, 13: Output unit, 14: Torque balance check unit, 15: Storage state simulation Department.

Claims (9)

A shutter spring selecting device for selecting a spring provided in a shutter opening / closing drive system,
An input means for externally inputting selection conditions such as shutter specifications for spring selection,
Storage means for storing data of a plurality of shutter specifications and springs;
Selecting means for selecting a spring conforming to the shutter specification using data stored in the storage means based on an input of the input means;
Output means for externally outputting the data of the spring selected by the selection means,
A spring selecting device for a shutter, comprising: 2. The shutter according to claim 1, wherein the selection unit includes a torque balance check unit that evaluates a torque value of the selected spring with respect to a reference torque value at the time of opening and closing the shutter based on a shutter specification using a balance check diagram. 3. Spring selection device. 2. The shutter spring selection device according to claim 1, wherein data of a plurality of shutter specifications and springs stored in the storage unit can be updated by an external input. The selection means, by virtually displaying the shape of the car housing the spring based on the shutter specification and the selected shape of the spring at the arrangement position in the car,
The spring selecting device for a shutter according to claim 1, further comprising a storage state simulation unit for evaluating a storage state of the spring in the car. The shutter spring selecting device according to claim 4, wherein the storage state simulation unit performs a special display indicating a state in which storage is impossible when the outer diameter of the selected spring is larger than the outer diameter of the car. The input means and / or the output means are provided with a communication means for performing communication with an external device, a selection condition is input via the communication means, and data of the selected spring is output. The spring selecting device for a shutter according to claim 1. A shutter spring selection method for selecting a spring provided in a shutter opening / closing drive system,
A first step in which shutter specifications and the like for selecting a spring are input;
A second step of reading a default value of data corresponding to the corresponding shutter specification from the storage unit based on the input;
A third step of selecting a spring conforming to the shutter specification based on data corresponding to the shutter specification;
A method for selecting a spring for a shutter, comprising: A fourth step of evaluating a torque value of the spring selected in the third step using a balance check diagram indicating a reference torque value required for opening and closing the shutter;
A fifth step of storing and simulating the spring selected in the third step by virtually displaying the spring at an arrangement location in the car;
8. The method for selecting a spring for a shutter according to claim 7, comprising: When either the result of the balance check displayed in the fourth step or the result of the storage simulation in the fifth step does not satisfy the evaluation criterion, to select a new spring again,
A sixth step of changing and setting data of predetermined items related to spring selection among default values of data corresponding to shutter specifications already read in the second step;
A seventh step of re-selecting a spring based on the data partially changed and set in the sixth step;
9. The method for selecting a spring for a shutter according to claim 8, comprising:

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