JPH0585199B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a multi-pattern sewing machine that automatically forms a desired pattern selected from a large number of predetermined patterns. This relates to technology for displaying the dimensions of.

Prior Art In multi-pattern sewing machines that automatically form a desired pattern selected from pre-stored patterns, in recent years the types of patterns that can be sewn have increased, for example.
It has been expanded to include over 100 different patterns, and the shapes of these many patterns are displayed on the front of the sewing machine. However, because the display area on the front of the sewing machine for displaying the image of the pattern is limited, as the number of types of patterns that can be sewn increases, the size of the image of the pattern displayed on the front of the sewing machine becomes smaller than the actual size of the pattern. There is a tendency for the dimensions to be smaller than those of For this reason, in such conventional multi-pattern sewing machines, it is difficult to predict the dimensions of the pattern actually formed on the workpiece cloth from the shape displayed on the front of the sewing machine and set the sewing position. When forming a desired pattern in a certain sewing area on a work cloth for forming a pattern, there is a problem that the pattern protrudes from the sewing area or is unevenly distributed within the sewing area. In particular, letters such as letters, numbers, or a series of patterns or letters.
Such inconvenience becomes noticeable when a plurality of cycle patterns, each sewn individually, are combined and formed within a predetermined area.

On the other hand, it is conceivable to test the combination of cycle patterns to be formed and check the actual dimensions in the work cloth feeding direction by sewing a trial pattern before the actual sewing, but each time multiple cycle patterns are formed, Performing such trial sewing is an extremely troublesome task for the operator.

Purpose of the Invention The present invention has been made against the background of the above circumstances, and its purpose is to determine the actual dimensions in a predetermined direction of a combination of a plurality of desired cycle patterns selected from a large number of patterns. The purpose of the present invention is to provide a multi-pattern sewing machine that can display the following.

Structure of the Invention In order to achieve the above object, the gist of the present invention is to provide a pattern selection device for selecting a desired cycle pattern from a large number of predetermined cycle patterns formed by the vertical and reciprocating movement of a sewing needle. A sewing machine that sequentially combines cycle patterns selected by the pattern selection device and forms a plurality of combined patterns arranged in a predetermined direction, wherein: a storage device that outputs pattern length data; a reading unit that reads out a plurality of pattern length data corresponding to the plurality of combined cycle patterns from the storage device; and a plurality of pattern length data read out. a calculation means for calculating combined length data by composing the combined length data; and according to the calculated combined length data,
and a display device disposed on the sewing machine frame to inform the operator of the total length of the plurality of combined cycle patterns.

Effects of the Invention By doing this, when a desired cycle pattern is selected by the pattern selection device and a combination thereof is specified, a plurality of cycles are selected from the storage device in which pattern length data is stored. Pattern length data corresponding to each pattern is read out by the reading means. The plurality of read pattern length data are then summed up in the calculation means, and the total length of the desired cycle pattern combination (actual length of each cycle pattern) selected according to the summed combination length data is added. ) is displayed on the display device. Therefore, the operator can read the total length of the selected cycle patterns in a predetermined direction from the display device before sewing the desired cycle patterns, so that the operator can sew the selected cycle patterns without the need for trial sewing. The actual overall length of the pattern combination can be known, and the sewing position on the workpiece cloth, in other words, the sewing start position, can be easily set. Therefore, when forming a selected desired combination of cycle patterns on the work cloth, the cycle patterns may protrude from the sewing area on the work cloth, or the cycle patterns may be formed unevenly within the sewing area. It will be resolved.

Embodiment FIG. 1 shows the external appearance of a multi-pattern sewing machine to which the present invention is applied, in which a pillar part 12 is erected on a bed part 10, and an arm part 14 is connected to the pillar part at one end. It is supported horizontally by 12. A head 16 is formed at the other end of the arm portion 14, and a needle bar is provided at the lower end of the head 16 with a sewing needle 18 that is reciprocated in the vertical direction in synchronization with the rotation of a sewing machine main shaft (not shown). 20, and a presser foot 22 that can be manually moved to a raised position and a lowered position, respectively. On the other hand, a feed dog 24 is provided near the needle drop point of the sewing needle 18 on the bed portion 10 and is driven reciprocatingly in synchronization with the rotation of the main shaft of the sewing machine to feed the work cloth.

Pattern display section 2 provided on the front side of the arm section 14
6, a large number (approximately 100 types) of patterns consisting of groups A, B, and C are displayed together with two-digit pattern numbers (not shown) as figures smaller than their actual dimensions. Patterns belonging to Group B are so-called continuous sewing patterns, including practical stitches such as straight stitches and zigzags, and decorative patterns. Patterns belonging to Group A are letters, numbers, etc., and patterns belonging to Group C are a series of patterns or letters. . The patterns belonging to Group A or C are so-called cycle patterns in which each pattern is sewn individually. Ten pattern selection switches 28 each having a number engraved thereon are provided to select a desired pattern. Further, on the right side of the pattern display section 26, there is a two-digit number display 30, which is a display device for displaying the pattern number or the actual size of the pattern in the work cloth feeding direction, and a two-digit number display 30 that is selected by the number display 30. A display changeover switch 32, which is a manual operation element, is provided for displaying the actual dimensions of the pattern. A combination designation switch 34 and a one-cycle designation switch 36 are provided between the pattern selection switch 28 and the display changeover switch 32 as combination designation operation bodies. In addition, 38
4 is a start/stop switch for starting and stopping the sewing machine, and 40 is a speed setting device for setting the speed of the sewing machine motor 42 to a desired value.

The multi-pattern stitch sewing machine constructed as described above is equipped with a control circuit shown in FIG. That is, in accordance with the operation of the pattern selection switch 28, the two-digit pattern number corresponding to the desired pattern is displayed on the encoder 44.
When the pattern number is inputted, the encoder 44 is provided with a storage section in which a large number of pattern codes are stored, and the pattern data corresponding to the inputted pattern number is inputted.
SM is the first address memory 46, pattern discriminator 4
8, the stitch number data memory 50, the length data memory 52, and the input port L of the multiplexer 54. Further, when a two-digit numerical value is input by operating the pattern selection switch 28, a pattern input signal SI indicating that a pattern has been input is outputted from the encoder 44 to adders 45 and 47, which will be described later. That is, the pattern selection switch 28 and the encoder 44
The encoder 44 forms a pattern selection device that generates pattern data SM, and the encoder 44 forms a reading means for reading pattern length data stored in a length data memory 52, which will be described later.

A large number of start addresses are stored in the start address memory 46, and the input pattern data SM
Select the first address corresponding to channel selector 5.
Supply to 5. The channel selector 55 allows the start address from the start address memory 46 to be supplied to the pattern code memory 57 via the channel selector 55 when a start signal SST is not generated from the motor control circuit 72 described later. However, when the activation signal SST is generated, the start address output from the pattern code memory 57 is allowed to be supplied to the stitch data generator 56 via the channel selector 55.

A timing signal TS synchronized with the rotation of the main shaft of the sewing machine (not shown) is supplied to the stitch data generator 56 from a timing signal generator 58, and the stitch data generator 56 generates pattern data SM in synchronization with the timing signal TS. A series of stitch data for forming a corresponding pattern is sequentially supplied to the actuator drive circuit 60. That is, the stitch data generation device 56 includes, for example, an address counter that loads the start address at the same time as the pattern selection operation and counts the timing signal TS in addition to the loaded contents, and stores many types of stitch data in advance. The sewing machine is provided with a stitch data memory, etc., which sequentially outputs stitch data addressed according to the count contents of the address counter. The above stitch data consists of a pair of needle position signals SH
and a feed signal SF, and the needle position signal SH indicates the swinging position of the sewing needle 18 using the feed signal
SF represents the feed amount and feed direction of the work cloth. Note that when the end of a series of stitch data generated by the stitch data generator 56 is generated, an end signal SE representing the end is supplied to an address counter 70 (described later) via an OR circuit 68, and is counted there. It is becoming more and more common.

The actuator drive circuit 60 receives the needle position signal SH
and the feed signal SF are converted into analog signals, amplified in power, and supplied to the needle swing actuator 62 and the feed actuator 64, respectively. The needle swing actuator 62 changes the swing position of the needle bar 20 by driving the needle swing mechanism, and the feed actuator 64 changes the feed by positioning the rotational position of a feed adjuster (not shown). This is to change the work cloth feed amount and feed direction of the teeth 24.

In the pattern discriminator 48, the pattern data
It is determined whether the pattern corresponding to SM is a cycle pattern (single sewing pattern) belonging to the groups A and C, and if it is a cycle pattern, an H level signal is output to the AND circuit 66. On the other hand, the AND circuit 66 is supplied with an H level signal indicating that the combination designation switch 34 has been pressed, and the pattern corresponding to the pattern data SM is a cycle pattern and the combination designation switch 34 is pressed. When 34 is pressed, AND circuit 6
6, a combination signal SP is supplied to an address counter 70 through an OR circuit 68, and is also supplied to adders 45 and 47.

In the address counter 70, the OR circuit 6
8 is counted, and the counted contents are supplied to the pattern code memory 57, whereby the specified or already stored start address is retrieved from the location temporarily stored in the pattern code memory 57. It is starting to be read out. That is, a start signal is sent from the motor control circuit 72, which will be described later.
When the SST is being supplied to the pattern code memory 57, the output signal of the address counter 70 specifies the location from which the pattern code memory 57 is read. This is to designate a location in the code memory 57 to store the code. Note that the address counter 70 is supplied with a clear signal KU of a constant pulse width from the one-shot multi-circuit 74 in response to the generation of the start signal SST, and when the clear signal KU is supplied, the address counter 70 The count value in the counter 70 is cleared to zero.

The pattern code memory 57 receives the activation signal SST.
If not supplied, the state is read, and the first address memory 46 passes through the channel selector 55.
The first address supplied from the address counter 70 is temporarily stored in a location specified by the count contents of the address counter 70, and when the start signal SST is generated, it becomes a read state and the address counter 70
The head address of the location specified by the count content of 0 is output to the stitch data generator 56 via the channel selector 55.

In the stitch number data memory 50, the total number of stitches of each of the cycle patterns is stored, and a stitch number signal SN representing the total number of stitches of the pattern corresponding to the pattern data SM is sent to the adder 45. Supplied.
In the adder 45, the stitch number signal SN is read according to the pattern input signal SI, and the numerical value represented by the stitch number signal SN read according to the combination signal SP is added, and the added total value is expressed. A signal is provided to motor control circuit 72.

In the motor control circuit 72, for example, a start signal is generated in accordance with a pressing operation of the start/stop switch 38.
A T-type flip-flop circuit that alternately generates and eliminates SST and a signal representing the total number of stitches outputted from the adder 45 are loaded and subtracted from the loaded total number of stitches in response to the timing signal TS; In addition, a subtraction counter is provided which resets the flip-flop circuit when the counted value becomes zero, and normally a start signal SST is alternately outputted to the motor drive circuit 76 in accordance with the pressing operation of the start/stop switch 38. . However, when the 1-cycle signal CC representing 1-cycle sewing (single sewing) is supplied from the T-type flip-flop circuit 78, which is alternately set and reset in response to the pressing operation of the 1-cycle designation switch 36,
When the content of the subtraction counter decreases to a predetermined constant value and a rising position signal SU representing the rising position of the sewing needle 18 is supplied from the needle position detector 79,
The low speed command signal LS is supplied to the motor drive circuit 76, and then, when the content of the subtraction counter reaches zero, the start signal SST supplied to the motor drive circuit 76 is stopped.

In the motor drive circuit 76, the start signal
When SST is supplied, electric power is applied to the sewing machine motor 42 so that the motor rotation speed set by the speed setting device 40 and the actual rotation speed of the sewing machine motor 42 detected by the speed detector 80 match.
is supplied to the sewing machine motor 42 and the speed setting device 4
It is rotated at a speed set at 0. Further, when the low speed command signal LS is supplied, a predetermined constant small drive power is supplied to the sewing machine motor 42, and the sewing machine motor 42 is rotated at a low speed. When the supply of the start signal SST is stopped, the power supply to the sewing machine motor 42 is stopped.

In the length data memory 52 serving as a storage device, the actual dimensions of each cycle pattern in the work cloth feeding direction are stored, and the pattern length data SL representing the actual dimensions of the pattern corresponding to the pattern data SM is stored. The signal is supplied to an adder 47 as a calculation means. Similar to the adder 45, the adder 47 receives pattern length data in accordance with the pattern input signal SI.
As SL is loaded, the loaded contents are added according to the combination signal SP, and combination length data SG representing the sum value as the addition result is supplied to the input port H of the multiplexer 54. In the multiplexer 54, its input port L is always
is selected and the pattern data SM is sent to multiplexer 5.
However, when the port select signal SC is supplied from the AND circuit 84, the input port H is selected, and the combined length data SG is supplied to the display drive circuit 82 through the multiplexer 5.
4 to the display drive circuit 82. Display drive circuit 82 supplies a display signal to numeric display 30 to display the numerical value represented by the signal input thereto. The AND circuit 84
is supplied with an H-level switching display signal SD generated in accordance with the pressing operation of the display change-over switch 32 and a one-cycle signal CC (H level) output from the T-type flip-flop circuit 78. The port select signal SC is supplied to the multiplexer 54 when one cycle sewing (single sewing) is designated by the one cycle designation switch 36 and a display switching operation is performed by the display changeover switch 32.

The operation of this embodiment will be explained below. When a continuous sewing pattern belonging to group B is selected in accordance with the operation of the pattern selection switch 28, since no signal is output from the pattern discriminator 48, the address counter 70 is selected regardless of the operation of the combination designation switch 34.
The content of is maintained at zero. For this reason, the location where the pattern code memory 57 should be temporarily stored or the location where the start address should be read from the pattern code memory 57 is always a constant address, such as address zero. Since the start signal SST is not generated before the start/stop switch 38 is operated, the start address for sewing the pattern corresponding to the pattern data SM is transferred from the start address memory 46 to the pattern code via the channel selector 55. The data is supplied to the memory 57 and temporarily stored at the zero address.

When the start/stop switch 38 is pressed in the above state, a start signal SST is generated from the motor control circuit 72 and the pattern code memory 57
is placed in the reading state and the switching state of the channel selector 55 is changed, so the start address temporarily stored in the pattern code memory 57 is supplied to the stitch data generator 56 via the channel selector 55, and at the same time the sewing machine The motor 42 is driven to rotate. As a result, the stitch data generator 56
From then on, a series of stitch data for sewing a pattern corresponding to the pattern data SM is sequentially supplied to the actuator drive circuit 60 in synchronization with the timing signal TS, the stitch position of each stitch is controlled, and the pattern selection switch is activated. The desired continuous sewing pattern selected according to the operation 28 is continuously formed on the work cloth until the start/stop switch 38 is operated again.

Next, when one of the cycle (single sewing) patterns belonging to the group A or C is selected, when the start/stop switch 38 is pressed after operating the pattern selection switch 28, the above-mentioned embodiment is repeated. A cycle pattern is continuously formed according to a similar operation. That is, since the combination designation switch 34 is not pressed, the temporary storage location or readout location in the pattern code memory 57 is defined as a fixed location, and the 1 cycle designation switch 36 is a T-type flip-flop circuit that responds to the depression operation. This is because the one-cycle signal CC from 78 is not supplied to the motor control circuit 72. In this state, the 1-cycle signal CC cannot be generated even if the display changeover switch 32 is pressed, so the input port L of the multiplexer 54 is always selected and only the pattern number is displayed on the numeric display 30. .

However, if the 1 cycle designation switch 36 is pressed and the display changeover switch 32 is operated before the start/stop switch 38 is pressed, the selected cycle pattern will be displayed on the numeric display 30. The actual dimensions in the fabric feed direction are displayed. In other words, 1 cycle designation switch 3
When 6 is pressed, the T-type flip-flop circuit 78 is set and a 1-cycle signal CC is supplied to the AND circuit 84. On the other hand, when the display changeover switch 32 is pressed, a switching display signal SD is supplied to the AND circuit 84. When the port select signal is
SC is provided to multiplexer 54. Therefore, in the multiplexer 54, its input port H is selected. At that time, pattern length data SL representing the actual dimension in the work cloth feeding direction of the cycle pattern selected from the length data memory 52
is supplied to the adder 47, and the adder 47
Since the content of the adder 47, that is, the length data SG representing the actual dimension of one selected cycle pattern, is supplied to the display drive circuit 82 through the multiplexer 54, the number The actual dimensions of the selected cycle pattern are displayed on the display 30.

In this state, when the start/stop switch 38 is pressed and the sewing machine motor 42 is driven to rotate, a cycle pattern is formed on the workpiece cloth in the same way as in the above-mentioned operation, but when the cycle pattern is completed, the sewing needle 18 When the sewing machine motor 42 reaches the raised position, the sewing machine motor 42 is automatically stopped. That is, the stitch number signal SN representing the number of stitches of the cycle pattern selected from the stitch number data memory 50 is supplied to the adder 45, and the adder 45 calculates the number of stitches according to the pattern input signal SI. The number signal SN is loaded, and a signal representing the contents of the adder 45, that is, the number of stitches for one selected cycle pattern, is supplied to the motor control circuit 72. Therefore, in the motor control circuit 72, the adder 45
The number of stitches supplied from is subtracted in response to the timing signal TS, and when the subtraction result decreases to a predetermined constant number, a low speed command signal LS is supplied to the motor drive circuit 76 to drive the sewing machine motor at a low speed. In addition, when the subtraction result reaches zero and the raised position signal SU representing the raised position of the sewing needle 18 is supplied from the needle position detector 79, the supply of the start signal SST is stopped, so that the sewing machine motor 42 When the formation of the cycle pattern is completed, the sewing needle 18 is accurately stopped in the raised position.

When sewing a combination of a plurality of cycle patterns belonging to group A or group C, the following operation is performed. First, the pattern selection switch 28
When the first cycle pattern is selected according to the operation, the start address corresponding to the first cycle pattern is temporarily stored from the start address memory 46 through the channel selector 55 to address zero of the pattern code memory 57. Ru. Then, prior to the selection operation of the second cycle pattern, the combination designation switch 3 is pressed.
4 is operated, since the cycle pattern has already been determined in the pattern discriminator 48, the address counter 7 is passed from the AND circuit 66 to the OR circuit 68.
A signal is supplied to the address counter 70, and the address counter 70 is supplied with the signal and its contents are set to 1. Therefore, the temporary storage location designated in the pattern code memory 57 is changed from address 0 to address 1.
Next, when the second cycle pattern is selected by operating the pattern selection switch 28, the start address corresponding to the second cycle pattern is stored at address 1 in the pattern code memory 57. As described above, a desired number of cycle patterns can be combined.

On the other hand, in the input operation process, the first cycle pattern and the second cycle pattern are input from the stitch number data memory 50.
A stitch number signal SN representing the number of stitches of each cycle pattern is supplied to an adder 45;
, these are sequentially loaded in accordance with the pattern input signal SI, and the loaded stitch numbers are added in accordance with the combination signal SP. Similarly, in the length data memory 52, pattern length data SL representing the lengths of the first cycle pattern and the second cycle pattern in the work cloth feeding direction are supplied to the adder 47. In the adder 47, these are loaded according to the pattern input signal SI, and they are added together according to the combination signal SP. Therefore, a signal representing the total number of stitches of the plurality of selected cycle patterns is supplied from the adder 45 to the motor control circuit 72, while a signal representing the total number of stitches of the plurality of selected cycle patterns in the work cloth feeding direction is supplied to the motor control circuit 72. Length data SG is multiplexer 5
It is supplied to input port H of No. 4.

In the above condition, 1 cycle designation switch 3
6 is pressed, the T-type flip-flop circuit 78 is set, and when the font changeover switch 32 is pressed, the port select signal is set.
Since SC is supplied to multiplexer 54, its input port H is selected. Therefore, the combined length data SG is supplied to the display drive circuit 82, and the total length (actual length) of the cycle patterns combined on the numerical display 30 in the work cloth feeding direction is
is displayed. Therefore, the operator can recognize the actual dimensions in the work cloth feeding direction formed by the combination of a plurality of selected cycle patterns before sewing, and set the seam position on the work cloth based on this. It can be made easier.

Subsequently, when the start/stop switch 38 is pressed and the sewing machine motor 42 is rotated at the same time, the address counter 70 is cleared in accordance with the clear signal KU of a predetermined pulse width generated in response to the start signal SST. Therefore, the pattern code memory 57
The start address read position at is set to address zero. Therefore, the start address corresponding to the first cycle pattern stored in advance at address zero is supplied from the pattern code memory 57 to the stitch data generator 56 via the channel selector 55. A series of stitch data for forming the first cycle pattern is sequentially generated. Therefore, a first cycle pattern is first formed on the work cloth. When the first cycle pattern is formed on the work cloth and reaches the end of the series of stitch data, the end signal SE is supplied to the address counter 70 via the OR circuit 68. Therefore, the count content in the address counter 70 is incremented by one, and the designated reading position for the pattern code memory 57 is changed from address 0 to address 1.
As a result, the head address temporarily stored at address 1 corresponding to the second cycle pattern is supplied to the stitch data generator 56 via the channel selector 55. Therefore, a series of stitch data for forming the second cyclic pattern is sequentially supplied to the actuator drive circuit 60, so that the second cyclic pattern follows the first cyclic pattern on the work cloth. It is formed. Then, at the same time as the formation of the last preselected cycle pattern is completed, the sewing machine motor 42 is automatically stopped. That is, the motor control circuit 72 is supplied with a signal representing the total number of stitches of a plurality of cycle patterns selected in advance from the adder 45, and the total number of stitches is sequentially subtracted in response to the timing signal TS. When the result reaches a predetermined constant value, the low speed command signal LS is supplied to the motor drive circuit 76, and the sewing machine motor 42 is first driven at a low speed before stopping. Then, when the subtraction content reaches zero, that is, when the formation of the last cycle pattern is completed and the raised position signal SU representing the raised position of the sewing needle 18 is generated, the motor control circuit 72 starts the motor drive. Since the start signal SST supplied to the circuit 76 is stopped, the sewing machine motor 42 is automatically stopped precisely at the raised position of the sewing needle 18.

In this way, according to this embodiment, when the cycle pattern is selected by the pattern selection switch 28,
In particular, even when a plurality of such cycle patterns are combined, the actual dimensions in the work cloth feeding direction of the desired plurality of cycle patterns combined with each other can be displayed on the numerical display 30 by operating the display changeover switch 32. Since the information is displayed, it becomes extremely easy for the operator to set the sewing positions on the workpiece cloth of the plurality of cycle patterns to be sewn prior to sewing. That is, in a multi-pattern sewing machine that is capable of sewing many types of patterns, the various patterns are displayed on a pattern display section 26 on the front of the sewing machine, but the area of the pattern display section 26 is generally limited. Because of this, it is inevitable that each pattern image will be displayed smaller than its actual size. For this reason, the operator cannot accurately know the actual length of each pattern from the size of the pattern displayed on the pattern display section 26, and in some cases, the operator may not be able to accurately determine the actual length of each pattern. In some cases, the pattern protrudes from the sewing area on the workpiece cloth, or the pattern formed within that area becomes uneven. However, according to this embodiment, the actual dimensions of a plurality of cycle patterns in the work cloth feeding direction are displayed on the display 30 prior to sewing, so the setting of the stitch positions of the patterns on the work cloth is greatly improved. This makes it possible to easily form a cycle pattern in a well-balanced manner within the sewing area where the pattern is to be formed on the work cloth without the need for trial sewing.

Further, according to this embodiment, since the 1 cycle designation switch 36 is provided, even if a cycle pattern is selected, if the 1 cycle designation switch 36 is not operated, the cycle pattern will not be sewn continuously. It is also possible to do so.

Although the embodiment of the present invention has been described above based on the drawings, the present invention can also be applied to other embodiments.

For example, in the block diagram of FIG. 2, part or all of the circuit surrounded by a dashed line may be constructed by a so-called microcomputer.

Further, in the above embodiment, the pattern discriminator 48
The same effect can be obtained even if the output signal is supplied to the motor control circuit 72 and the AND circuit 84 as the one-cycle signal CC.

The above-mentioned embodiment is merely one embodiment of the present invention, and various modifications may be made to the present invention without departing from the spirit thereof.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the appearance of a sewing machine to which an embodiment of the present invention is applied. FIG. 2 is a block diagram showing the circuit configuration of the embodiment of FIG. 1. 18...Sewing needle, 24...Feed dog, {28...Pattern selection switch, 44...Encoder (reading means)} (pattern selection device), 30...Numeric display (display device), 32...Display switching Switch (manual operation book), 34... Combination designation switch (combination designation operating body), 47... Adder (calculation means), 52...
Length data memory (storage device).

Claims (1)

[Scope of Claims] 1. A pattern selection device for selecting a desired cycle pattern from among a large number of predetermined cycle patterns formed by the vertical and reciprocating movement of a sewing needle, and a cycle selected by the pattern selection device. In a sewing machine that sequentially combines patterns and forms a plurality of combined cycle patterns arranged in a predetermined direction, the storage device stores pattern length data regarding the length in the predetermined direction of each pattern among the plurality of cycle patterns; , reading means for reading a plurality of pattern length data corresponding to the plurality of combined cycle patterns from the storage device, and calculating combined length data by summing the plurality of read pattern length data. and a display device disposed in a sewing machine frame for informing an operator of the total length of the plurality of cycle patterns combined according to the calculated combination length data. 2. The multi-pattern stitch sewing machine according to claim 1, wherein the display device operates in response to an operation of a manual operating body on a sewing machine frame.