JP3818114B2 - Stator mounting structure of linear motor for automatic door - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a stator mounting structure for a linear motor for an automatic door that mounts a stator of a linear motor that automatically opens and closes a door on a duck.
[0002]
[Prior art]
Conventionally, as shown in FIG. 6, a linear motor 120 that opens and closes a door 100 includes a stator 110 and a mover 130, and the mover 130 and the door 100 are connected via a joint 105 at the upper end of the door 100. Has been. Then, when the mover 130 moves in the left-right direction in FIG. 6, the door 100 is opened and closed via the joint 105. The linear motor 120 is attached to the inside of a duck groove (not shown) into which the upper end of the door 100 is inserted via a bracket 124 fixed on the door bottom side and a bracket 125 fixed on the door end side. It is supposed to be.
[0003]
The bracket 124 on the door bottom side is formed by bending a front plate and a rear plate having a substantially right triangle shape, a substantially rectangular connecting plate for connecting the bases of the triangles, and an upper end of the front plate and the rear plate inwardly. The front plate and the rear plate sandwich the left end portion of the linear motor 120, hold the end portion from the lower side with the connecting plate, and restrict the upward movement with the control piece. It is like that. Note that the front plate and the rear plate are formed with clamping pieces by cutting and raising, and the clamping pieces are elastically contacted with the linear motor 120, whereby the linear motor 120 is positioned in the width direction. A nut is fixed to the door-end bracket 125 in advance by welding or the like, and the bolt 150 is inserted from below into the bolt insertion hole of the fastening piece 121 attached to the right end of the linear motor 120. The right end of the linear motor 120 can be fixed to the bracket 125 by screwing into a nut fixed to the bracket 125.
[0004]
[Problems to be solved by the invention]
However, in the conventional technology as described above, it is possible to prevent the linear motor 120 from rattling in the width direction with respect to the bracket 124 fixed inside the duck groove, but in the vertical direction the rattling of the linear motor 120 is prevented. There is a problem that the linear motor 120 is likely to be rattled without being prevented from rattling. This rattling does not pose a problem when the linear motor 120 has a structure in which the stator 110 and the mover 130 are integrated as shown in the example, but the stator 110 is mounted inside the groove of the Kamoi and is movable. In a linear motor having a structure in which the child 130 is attached to the upper end of the door 100, it causes a vibration during driving, which is a problem.
[0005]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and a linear motor stator for an automatic door that prevents rattling of a linear motor stator attached to a bracket fixed inside the groove of the Kamoi. An object is to provide a mounting structure.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the stator mounting structure for a linear motor for an automatic door according to claim 1, wherein the upper end of the stator mounting structure is configured to open and close a door that is movably inserted into the groove. A stator of a linear motor for an automatic door disposed in the first door, and a first stator that is fixedly installed inside the groove of the head to hold the stator along the groove of the head, and holds one end of the stator in the longitudinal direction. 1 bracket, and a second bracket fixed to the inside of the groove for holding the stator along the groove of the head, and holding the other end of the stator. The bracket is provided with a hook that opens to the opposite side of the second bracket in the longitudinal direction of the stator, and an engaging portion that engages with the hook of the first bracket is provided at one end of the stator. Provided at the other end of the stator. A fixing portion that is fixed to the second bracket is provided, the engaging portion is engaged with the hook of the first bracket from above, and the fixing portion is fixed to the upper surface of the second bracket. The stator is configured to straddle between the first and second brackets fixed inside the groove of the headquarters.
[0007]
In the stator mounting structure of the linear motor for automatic doors with this configuration, a hook is provided on the first bracket fixed inside the groove of the Kamoi, and the hook of the first bracket is attached to one end of the stator. Since the engaging portion to be engaged is provided, the engaging portion is engaged from above with the hook opened on the opposite side to the second bracket that holds the other end of the stator in the longitudinal direction of the stator. In addition, since the other end of the stator is provided with a fixing portion that is fixed to the second bracket fixed inside the groove of the head, the fixing portion is attached to the second bracket. Can be fixed to the top surface. Thereby, a stator is straddled between the 1st and 2nd brackets fixed by the inside of the groove | channel of a Kamoi in the state in which the rattling in the up-down direction was prevented.
In addition to the configuration of the invention according to claim 1, the first bracket includes a horizontal holding wall that extends horizontally, and the stator mounting structure for a linear motor for an automatic door according to claim 2; A fixed wall extending upward from one end in the extending direction of the horizontal holding wall, and the hook provided at the other end opposite to the one end in the extending direction of the horizontal holding wall; The hook extends from the other end of the horizontal holding wall and opens in the direction of the fixed wall.
In the stator mounting structure of the linear motor for automatic doors with this configuration, the hook provided on the first bracket and the engaging portion of the stator are firmly engaged. Can also be prevented.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a stator mounting structure for a linear motor for an automatic door embodying the present invention will be described with reference to the drawings. First, with reference to FIG. 1, the state which attached the stator A to the groove | channel inside of the duck 17 (refer FIG. 5) via the bracket 9 and the bracket 10 is demonstrated. As shown in FIG. 1, an automatic door installed in a house or a store and opened and closed by a linear motor composed of a stator and a mover is a coil unit (not shown) which is a stator attached inside the groove of the Kamoi. And the upper end part can be opened and closed by a permanent magnet 21 which is a mover provided in the door 20 movably inserted in the groove of the headquarters. The coil unit is composed of a plurality of coils and is housed in the case 1. Further, at the lower end portion of the door 20, door wheels 22 and 22 that slide on guide rails (not shown) are provided. Furthermore, a permanent magnet 21 is provided at the upper end of the door 20 along the moving direction. The door 20 is opened and closed in the left-right direction in FIG. 1 by the permanent magnet 21 and the coil unit stored in the case 1. It has become so.
[0009]
Next, the structure of the stator A will be described with reference to FIGS. The stator A includes a coil unit and a case 1 that stores the coil unit. The case 1 has a substantially U-shaped main body 2 that opens downward, and an engagement provided at the left end of the main body 2. It is comprised from the part 3 and the fixing | fixed part 4 provided in the right side edge part. The main body 2 is formed by bending one metal plate that is long in the left-right direction in FIG. 2 substantially vertically so that two bend lines are formed substantially parallel to the longitudinal direction, and the upper wall 2a. And a front wall 2b and a rear wall 2c substantially perpendicular to the upper wall 2a. Further, the upper wall 2a, the front wall 2b, and the rear wall 2c are substantially rectangular shapes that are long in the left-right direction, and the front wall 2b and the rear wall 2c are opposed to each other with the upper wall 2a interposed therebetween and are substantially the same. It has a shape. Further, the front wall 2b has a shape in which a left end and a right end thereof are notched in a step shape, and a notch 2b1 is formed on the left and a notch 2b2 is formed on the right. Yes. The rear wall 2c also has a shape in which a left end and a right end thereof are cut out in a step shape, and a notch 2c1 is formed on the left side, and a notch 2c2 is formed on the right side. Yes.
[0010]
Similarly, the engaging portion 3 and the fixing portion 4 are formed by bending a single metal plate, and each has a substantially U-shaped cross section opening upward. The engaging portion 3 includes a horizontal engaging wall 3a that engages with a hook 23 formed on a bracket 9 described later, and mounting walls 3b and 3b that are attached to the notches 2b1 and 2c1 of the main body 2. Each has a substantially rectangular shape. Further, the mounting walls 3b and 3b have substantially the same shape, and each is substantially perpendicular to the engaging wall 3a. The engaging portion 3 is fitted to the main body 2 at a portion having the cutout portions 2b1 and 2c1 of the main body 2, and each of the mounting walls 3b and 3b is spot-welded to the main body 2 in the fitted state. ing. At this time, the engagement portion 3 is in a state where only the plate thickness of the engagement wall 3a of the engagement portion 3 is exposed from the notches 2b1 and 2c1 of the main body 2 in a front view.
[0011]
The fixing portion 4 is composed of a horizontal fixing wall 4a fixed to a bracket 10 to be described later, and mounting walls 4b and 4b attached to the notches 2b2 and 2c2 of the main body 2, each of which is substantially rectangular. It has a shape. The mounting walls 4b and 4b have substantially the same shape, and each is substantially perpendicular to the fixed wall 4a. Further, a bolt insertion hole 14 (see FIG. 5) is provided at a substantially central portion of the fixed wall 4a, and the center of the fixed wall 4a is aligned with the bolt insertion hole 14 on the upper side surface in FIG. A nut 15 is fixed in advance. The fixing portion 4 is fitted to the main body 2 at a portion having the cutout portions 2b2 and 2c2 of the main body 2, and each of the mounting walls 4b and 4b is spot-welded to the main body 2. At this time, the fixing portion 4 is in a state where only the plate thickness of the fixing wall 4a of the fixing portion 4 is exposed from the notches 2b2 and 2c2 of the main body 2 in a front view.
[0012]
The case 1 stores a coil unit (not shown). Then, the engaging wall 3a of the engaging portion 3 fixed to one end of the case 1 engages with a hook 23 (see FIG. 3) formed on the bracket 9 from above, and at the other end to the fixing portion 4. With the bolt insertion hole 14 drilled and the bolt insertion hole 11 drilled in the bracket 10 shown in FIG. ) Are screwed into the nuts 15 through the respective bolt insertion holes, whereby the longitudinal ends of the case 1, that is, the stator A are held by the brackets 9 and 10, and the stator A is provided with the grooves 27 (FIG. 5). Will be attached to the inside).
[0013]
Next, with reference to FIG. 3, the structure of the brackets 9 and 10 for attaching the case 1, that is, the stator A to the inside of the groove of the duck 17 will be described. Here, the brackets 9 and 10 hold both ends of the case 1 in the longitudinal direction, and the bracket 9 holds the end of the case 1 on the side to which the engaging portion 3 is fixed (door end side). The bracket 10 is configured to hold the end of the case 1 on the side (door end side) to which the fixing portion 4 is fixed. As shown in FIG. 3, the bracket 9 includes a holding portion 18 that holds one end of the case 1, and a mounting portion 19 that is attached to a vertical frame 27 (see FIG. 5) of the duck 17. It is formed by bending a plate.
[0014]
The mounting portion 19 is composed of a horizontal wall portion 19a that is substantially parallel to the left-right direction in FIG. 3 and a vertical wall portion 19b that is suspended upward from the right side edge thereof, and has a substantially L-shaped cross section. . In addition, the holding portion 18 is provided in a substantially rectangular horizontal holding wall 18a that supports the left end portion of the case 1 (see FIG. 1), and is suspended upward from both side edges on the long side of the horizontal holding wall 18a. The case holding portions 18b and 18b sandwiching the front wall 2b and the rear wall 2c of the main body 2 and one short side side edge of the horizontal holding wall 18a are suspended upward and fixed to the vertical wall portion 19b of the mounting portion 19. And a fixed wall 18c. Note that the case clamping portions 18b and 18b are not vertically suspended from the entire length of the long side edge of the horizontal holding wall 18a, but the right side edge in FIG. 3 of the long side edge. It hangs upward from the range of about half the length from the part toward the left side.
[0015]
Further, the horizontal holding wall 18a is provided with a hook 23 having a substantially U-shaped cross section that extends from a short side edge that is not the side where the fixed wall 18c is provided and opens in the direction of the fixed wall 18c. Specifically, the hook 23 is provided on the right side short side edge in FIG. 3 of the horizontal holding wall 18a, and a circular plane provided on the right side with two flat portions substantially parallel to the horizontal holding wall 18a. It is connected at the arc-shaped intermediate part, and has a shape opening in the direction of the fixed wall 18c. Then, the bracket 9 is formed by spot welding the holding portion 18 with the mounting portion 19 in a state in which the fixed wall 18 c is in close contact with the vertical wall portion 19 b of the mounting portion 19.
[0016]
The bracket 10 is also formed by bending a metal plate. Like the mounting portion 19 of the bracket 9, the bracket 10 has a case holding portion 10a that is a horizontal wall portion substantially parallel to the left-right direction in FIG. It is comprised from the attaching part 10b which is a vertical wall part hanged upward from the side edge, and the bolt penetration hole 11 is drilled in the approximate center part of the case holding | maintenance part 10a. And the attachment part 10b of the bracket 10 is attached to the vertical frame 27 (refer FIG. 5) of the Kamoi 17, and the right side edge part of the case 1 is supported by the case holding part 10a.
[0017]
Next, with reference to FIGS. 4 and 5, a method of attaching the case 1, that is, the stator A to the brackets 9 and 10 will be described. 4 is a perspective view showing a method of attaching the case 1 to the brackets 9 and 10, and FIG. 5 is a cross-sectional view taken along the line VV in FIG. As shown in FIG. 4, in order to attach the case 1 to the brackets 9 and 10, the brackets 9 and 10 are fixed to the vertical frame 27 of the head 17 shown in FIG. Between 18b, the edge part by which the engaging part 3 of the case 1 was fixed is inserted from diagonally downward through the groove | channel of the duck 17. Then, the notches 2b1 and 2c1 of the main body 2 are brought into contact with the horizontal holding wall 18a of the bracket 9, and the case 1 is rotated in the direction of arrow a in FIG. After that, as shown in FIG. 5, the case 1 is slid rightward so that the engaging wall 3 a of the engaging portion 3 fixed to the case 1 is engaged with the hook 23 of the bracket 9.
[0018]
As a result, the fixing portion 4 of the case 1 is placed on the upper surface of the case holding portion 10 a of the bracket 10. In this state, the bolt insertion hole 11 formed in the case holding portion 10 a of the bracket 10 and the case 1 The bolt insertion hole 14 drilled in the fixed wall 4a of the fixed portion 4 is fixed. In this state, the bolts 30 are inserted into the bolt insertion holes 11 and 14 from below and screwed into the nuts 15 provided on the fixing wall 4a of the fixing part 4, so that the bolts 17 are attached to the vertical frame 27. The fixing portion 4 fixed to the case 1 can be fixed to the bracket 10. As a result, both ends in the longitudinal direction of the case 1 are held by the brackets 9 and 10, and the case 1 is attached inside the groove of the duck 17.
[0019]
Although not shown, the case 1 stores a coil unit composed of a plurality of coils, and the coil unit and the case 1 constitute a stator of a linear motor. Therefore, as shown in FIG. 1, when the case 1 is attached to the head 17, that is, when the linear motor stator A is attached to the head 17, the permanent magnet 21 attached to the upper end of the door 20, that is, the mover The linear motor is configured, and the door 20 can be opened and closed in the left-right direction in FIG. 1 by the linear motor.
[0020]
According to the stator mounting structure of the present embodiment, even when the stator A is mounted inside the groove of the Kamoi, the bracket 9 on the door butt side is attached to the hook 23 of the engaging wall 3a of the engaging portion 3 of the case 1. Since it is only necessary to hook from above, work efficiency can be increased. In this state, the outer side surface of the main body 2 is in contact with the inner side surfaces of the case clamping portions 18b and 18b of the bracket 9 at the end of the case 1 on the side of the engaging portion 3; 4 and the hook 23 provided on the bracket 9 and the engagement wall 3a of the engagement portion 3 fixed to the case 1 are firmly engaged. Since it is in a state, it is possible to prevent rattling in the vertical direction. Furthermore, since the fixing part 4 is fixed to the bracket 10 by the bolt 30 at the other end, the rattling of the stator A straddling between the brackets 9 and 10 can be minimized. ing.
[0021]
The present invention is not limited to the above embodiment, and various modifications can be made. For example, in the present embodiment, the case and bracket for housing the coil unit are formed by bending a metal plate. However, these may not be made of metal, and further, the plate may be bent and formed. Instead, it may be molded using a mold or the like.
[0022]
【The invention's effect】
As described above, in the stator mounting structure for an automatic door linear motor according to the first aspect of the present invention, the hook is provided in the first bracket fixed inside the groove of the head, and the stator Since one end is provided with an engaging portion that engages with the hook of the first bracket, the engaging portion is opposite to the second bracket that holds the other end of the stator in the longitudinal direction of the stator. The hook that is open to the side can be engaged from above, and the other end of the stator is provided with a fixing portion that is fixed to a second bracket that is fixed inside the groove of the duck. Therefore, the said fixing | fixed part can be fixed to the 2nd bracket upper surface. Thereby, a stator is straddled between the 1st and 2nd brackets fixed by the inside of the groove | channel of a Kamoi in the state in which the rattling in the up-down direction was prevented. Therefore, even when the linear motor has a structure in which the stator is mounted inside the groove of the head and the mover is mounted on the upper end of the door, vibrations are generated when the linear motor is driven due to rattling of the stator. Can be prevented. Furthermore, the engaging portion provided at one end of the stator is engaged with the hook of the first bracket from above, and the fixing portion provided at the other end of the stator is fixed to the upper surface of the second bracket. The mounting work is easy and the work efficiency can be increased.
[0023]
In addition, in the stator mounting structure for an automatic door linear motor of the invention according to claim 2, in addition to the effect of the invention of claim 1, the hook provided on the first bracket and the engaging portion of the stator are firmly attached. Therefore, it is possible to prevent rattling in the vertical direction.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a stator mounting structure of an automatic door linear motor.
FIG. 2 is a perspective view showing a structure of a stator A. FIG.
FIG. 3 is a perspective view showing the structure of brackets 9 and 10;
4 is a perspective view showing a method of attaching the case 1 to the brackets 9 and 10. FIG.
FIG. 5 is a cross-sectional view in the direction of arrows VV in FIG. 1;
FIG. 6 is a perspective view showing a conventional mounting structure of a linear motor for an automatic door.
[Explanation of symbols]
A Stator 1 Case 2 Body 3 Engagement part 4 Fixing part 9, 10 Bracket 11 Bolt insertion hole 14 Bolt insertion hole 15 Nut 17 Kamoi 18 Holding part 19 Mounting part 20 Door 21 Permanent magnet 22, 22 Door

Claims (2)

A stator of a linear motor for an automatic door disposed inside the groove of the Kamoi for opening and closing a door whose upper end is movably inserted into the groove of the Kamoi;
A first bracket which is fixedly installed inside the groove of the head to hold the stator along the groove of the head, and holds one end in the longitudinal direction of the stator;
A second bracket for fixing the stator along the groove of the headquarters, fixed to the inside of the groove of the headquarters, and holding the other end of the stator;
The first bracket is provided with a hook that opens to the opposite side of the second bracket in the longitudinal direction of the stator ,
One end of the stator is provided with an engaging portion that engages with a hook of the first bracket,
The other end of the stator is provided with a fixing portion fixed to the second bracket,
The engaging portion is engaged with the hook of the first bracket from above, and the fixing portion is fixed to the upper surface of the second bracket, so that the stator is fixedly installed inside the groove of the head. A stator mounting structure for a linear motor for an automatic door, which is straddled between the first and second brackets. The first bracket includes a horizontal holding wall that extends horizontally, a fixed wall that extends upward from one end in the extending direction of the horizontal holding wall, and the one end in the extending direction of the horizontal holding wall. Consisting of the hook provided at the other end on the opposite side of the part,
The stator mounting structure for an automatic door linear motor according to claim 1, wherein the hook extends from the other end of the horizontal holding wall and opens in the direction of the fixed wall.

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