JP4901690B2 - Work aid - Google Patents

Description

  The present invention relates to a work auxiliary tool that can be applied to a tent that auxiliaryally secures a work place of equipment such as a circuit breaker, a disconnecting switch, and a switchgear. Specifically, the first and second expansion / contraction support members having expansion and contraction and flexibility are provided, and by supporting the both end portions of the sheet covering a predetermined range of the work place of the device, A sheet can be formed in a convex shape, and a framework that supports the sheet can be easily assembled.

  Conventionally, when it rains when inspecting a device such as a switchgear (SWG) that monitors and controls electricity, the vinyl sheet is covered with a tent (first first) by covering the work range of the switchgear with a vinyl sheet or the like. It is often used as a roof for tents to prevent rainwater from entering the switchgear electronics.

  In this case, for example, one end of the vinyl sheet is fixed by hooking corner holes of the vinyl sheet to two hooks provided in a cubicle (housing) on the operation panel side of the switchgear. When the other end facing the one end of the vinyl sheet is fixed and the vinyl sheet is deployed in the work area of the switchgear, for example, the other end of the vinyl sheet is fixed to a nearby outer fence with a rope. If there is no outside fence nearby to fix this vinyl sheet, hit a pile in the ground and fix it, fix the other end of the vinyl sheet to the pile with a rope, and put the vinyl sheet in the switch gear working range expand. In this way, the first tent is installed.

  In addition, a commercially available tent (second tent) may be used when inspecting equipment. For example, this tent is composed of four columns, a reinforcing member that reinforces these columns, and a sheet. The reinforcing member includes, for example, a rod-shaped member that forms a framework by connecting columns at predetermined intervals. According to the second tent, the sheet is supported by the four support columns reinforced by the reinforcing member.

  In relation to such a conventional example, Patent Document 1 discloses a switchboard with a rain protection function. According to the rain guard function of this switchboard, the hook is provided in a predetermined position on the door installation surface so as to be able to protrude and retract, and the rain guard sheet is hung on each hook when hung and hung on both sides. And covers the upper surface of the front space of the door installation surface and the left and right side surfaces. Thereby, when it rains, it prevents that rain falls inside when the door of a switchboard is opened, and a hanging tool can be evacuated from a door installation surface at the time of fine weather.

Japanese Unexamined Patent Publication No. 7-115713 (page 3, FIG. 1)

  By the way, according to the first tent according to the conventional example, one end of the vinyl sheet is fixed by hooking the corner of the vinyl sheet on the hook provided on the cubicle on the operation panel side of the switchgear, and the other end is close. It is fixed with a rope to the outer fence of the stake or piles struck in the ground. However, when the other end of the vinyl sheet is fixed to the outer fence or the pile, the rain may accumulate at a predetermined position of the vinyl sheet, and the vinyl sheet may be loosened by the weight of rainwater. If this loose state continues, the weight of rainwater may cause the vinyl sheet fixed to the pile or the like to come off, and rainwater may enter the switchgear electronic device.

  In addition, according to the second tent, as in the first tent, there is a possibility that rainfall will accumulate at a predetermined position of the vinyl sheet and that the vinyl sheet will loosen due to the weight of rainwater. In addition, since four columns are installed and the columns are reinforced with reinforcing members, the number of steps for assembling the tent is increased.

  Moreover, according to the switchboard with a rainproof function described in Patent Document 1, the rainproof sheet is hung on each switch provided on the front face of the switchboard and hung on both sides to cover the front space of the door installation surface. ing. However, as with the tent described above, rain may accumulate in the center of the rain protection sheet, and the center of the rain protection sheet may be loosened by the weight of rain water. If the slack state continues, the rain protection sheet hung on the hanging tool may come off due to the weight of rainwater, and rainwater may enter the electronic device of the switchboard.

  Therefore, the present invention solves the problems related to the conventional example, and enables the sheet to be formed in a convex shape and allows the frame supporting the sheet to be easily assembled. The purpose is to provide aids.

In order to solve the above-described problem, a first work auxiliary tool according to the present invention is a work auxiliary tool for assisting in securing a work place of the equipment during inspection of the equipment, A sheet that covers a predetermined range of the work place of the device, first and second support members that support one side of the sheet, and one end is locked to the first support member, and has elasticity and flexibility. A first telescopic support member having the other end installed on the ground and supporting one side end of the sheet; and one end locked to the second support member; comprising a second elastic support member to which the other end supports the other side edge of the sheet is placed on the ground, and a storage box for housing the first and second elastic support member, the first and One end of the second telescopic support member is rotatably attached to a predetermined position of the storage box, and the other end is the front. A rotating arm portion that is taken in and out of the storage box, a posture maintaining member that is rotatably attached to the tip of the rotating arm portion, and a lattice shape that is attached to the posture maintaining member and that is stretchable and flexible. The posture maintaining member rotates with the rotation of the rotating arm portion while maintaining the posture of the elastic member constant.
Further, the second work auxiliary tool according to the present invention is a work auxiliary tool for auxiliaryly securing the work place of the equipment during the inspection work of the equipment, and is a predetermined range of the work place of the equipment. A sheet covering the sheet, first and second support members for supporting one side of the sheet, one end locked to the first support member, and extending and contracting and having the other end on the ground A first telescopic support member that supports one side end of the sheet, and one end locked to the second support member, and has expansion and contraction and flexibility, and the other end is installed on the ground. A second expansion / contraction support member that supports the other side end portion of the sheet, and a storage box that stores the first and second expansion / contraction support members, and the first and second expansion / contraction support members include: The slide is slidably attached to a predetermined position of the storage box, and one end of the storage box is taken in and out of the storage box. A position change member that is slidably attached to the sliding arm portion, and a line of lattice-shaped elastic members that are attached to the position change member and are elastic and flexible. The changing member is characterized in that the sliding arm portion slides and slides in a predetermined direction to change the position of the telescopic member.

  According to the first work aid according to the present invention, when the equipment is inspected, the work place of the equipment is supplementarily secured, and the first and second support members are used for the work of the equipment. Support one side of the sheet covering a predetermined range of the place. The first telescopic support member has one end locked to the first support member described above, has expansion and contraction and flexibility, and the other end is installed on the ground to support one side end of the sheet. The second expansion / contraction support member has one end locked to the second support member, has expansion and contraction and flexibility, and the other end is installed on the ground to support the other side end of the sheet. Accordingly, the sheet can be formed in a convex shape by the two expansion / contraction support members that are bent and developed in an arc shape, and a framework that supports the sheet can be easily assembled.

In order to solve the above-described problem, the second auxiliary tool for work according to the present invention assists in securing the work place of the equipment at the time of inspection work of the equipment having at least two hooks. The work auxiliary tool has a sheet covering a predetermined range of the work place of the device, one end locked to the hook of the device, and has expansion and contraction and flexibility, and the other end is set on the ground. A first telescopic support member that supports one side end portion of the sheet, and one end is locked to a hook portion different from the hook portion to which the first telescopic support member is locked, A second expansion / contraction support member having expansion and contraction and having the other end installed on the ground and supporting the other side end of the sheet, and a storage for storing the first and second expansion / contraction support members and a box, said first and second elastic support members, the rotary self-end to a predetermined position of the storage box A rotating arm part with the other end being taken in and out of the storage box, a posture maintaining member rotatably attached to a tip of the rotating arm part, and a telescopic and flexible attached to the posture maintaining member The posture maintaining member rotates with the rotation of the rotating arm portion while maintaining the posture of the elastic member constant. is there.

  According to the second work auxiliary tool according to the present invention, when inspecting a device having at least two hooks, the work place of the device is supplementarily secured. Covers a predetermined area of equipment work area. The first expansion / contraction support member has one end locked to the hook portion of the apparatus, has expansion and contraction and flexibility, and the other end is installed on the ground to support one side end portion of the sheet. The second telescopic support member has one end locked to a hook portion different from the hook portion to which the first telescopic support member is locked, has expansion and contraction, and the other end is installed on the ground. And supports the other side edge of the sheet. Accordingly, the sheet can be formed in a convex shape by the two expansion / contraction support members that are bent and developed in an arc shape, and a framework that supports the sheet can be easily assembled.

  According to the first working aid according to the present invention, when the equipment is inspected, the work place of the equipment is secured in an auxiliary manner, and the first and second having expansion and contraction and flexibility. These expansion / contraction support members support both side end portions of the sheet covering a predetermined range of the work place of the apparatus.

  With this configuration, the sheet can be lifted by the expansion / contraction support member that is bent and developed in an arc shape, and the sheet can be formed in a convex shape. Thereby, since rain, dust, etc. do not accumulate on the convexly formed sheet, an extra force is not applied to the telescopic support member, and the sheet can be stabilized for a long time. In addition, since the expansion / contraction support member has expansion and contraction and flexibility, it is flexible in positioning during assembly and can be easily assembled. Moreover, the work aid which can be conveyed can be provided now by shrink | contracting an expansion-contraction support member.

  According to the second working aid according to the present invention, when the equipment having at least two hooks is inspected, the working place of the equipment is supplementarily secured. One end is locked to each of the hanging portions, and includes first and second expansion / contraction support members having expansion / contraction and flexibility. These expansion / contraction support members are provided on both sides of the sheet covering a predetermined range of the work place of the device. It supports the end.

  With this configuration, the sheet can be lifted by the expansion / contraction support member that is bent and developed in an arc shape, and the sheet can be formed in a convex shape. Thereby, since rain, dust, etc. do not accumulate on the convexly formed sheet, an extra force is not applied to the telescopic support member, and the sheet can be stabilized for a long time. And since the end of an expansion-contraction support member is latched by the hook part of an apparatus, the number of parts can be decreased.

  Subsequently, the working aid according to the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a configuration example of a tent 100 as a first embodiment according to the present invention. A tent 100 shown in FIG. 1 is installed to assist in securing a work place for the equipment such as an operation box such as a circuit breaker or a disconnecting switch.

  The tent 100 includes a seat 1, support columns 2 a and 2 b, elastic support members 3 and 4, and a storage box 5. The columns 2 a and 2 b constitute an example of first and second support members and support one side of the sheet 1. The support column 2a and the support column 2b have the same configuration, and include a support base 2c, connecting rods 2d to 2f, fastening members 2g and 2h, and a hook 2i. In this example, the support base 2c has an opening 2j in the center. One end of the connecting rod 2d is coupled to the opening 2j by screwing or the like. One end of the connecting rod 2e is coupled to the other end of the connecting rod 2d by a fastening member 2g. For example, one end of the connecting rod 2e is inserted into the other end of the connecting rod 2d, and after the insertion, the connecting portion of the connecting rods 2d and 2e is fastened and joined by screwing the fastening member 2g. Similarly, the connecting rod 2e and the connecting rod 2f are fastened and joined by the fastening member 2h. An “L” -shaped hook 2 i is attached to the tip of the connecting rod 2 f (tip of the column 2 a). The seat 1 and the elastic support member 3 are hooked on the hook 2i.

  The expansion / contraction support member 3 is an example of a first expansion / contraction support member, and includes an arm 3a and an expansion / contraction member 3b that function as an example of a rotating arm portion. One end of the elastic member 3b is locked to the hook 2i of the support 2a, and the other end of the elastic member 3b is fixed to the tip of the arm 3a. The stretchable member 3b has a single-row lattice shape (pantograph shape), and is stretchable and flexible to support one side end 1s of the sheet 1. For example, the lattice-shaped elastic members 3 b support the sheet 1 by bringing the surface of each lattice into contact with the side end 1 s of the sheet 1.

  The other expansion / contraction support member 4 is an example of a second expansion / contraction support member, and includes an arm 4a and an expansion / contraction member 4b that function as an example of a rotating arm portion. One end of the elastic member 4b is locked to the hook 2i of the support column 2b, and the other end of the elastic member 4b is fixed to the tip of the arm 4a. The stretchable member 4b has a lattice shape in a row, has stretchability and flexibility, and supports the other side end 1t of the sheet 1. For example, the lattice-shaped elastic members 4 b support the sheet 1 by bringing the surface of each lattice into contact with the side end portion 1 t of the sheet 1.

  One end of each of the arms 4 a and 4 b is rotatably attached to the mounting brackets 5 a and 5 b of the storage box 5, and the other end is taken in and out of the storage box 5. The storage box 5 is installed on the ground. The storage box 5 stores the expansion / contraction support members 3 and 4.

  The sheet 1 includes two posture bars 1a and 1b, two hole portions 1c and 1d, and a sheet body 1p. The sheet 1 covers a predetermined range of the work place of the device. The sheet body 1p of the sheet 1 has a quadrangular shape, and a posture bar 1a is attached to one side of the sheet body 1p, and a posture bar 1b is attached to one side opposite to the one side. Holes 1c and 1d are provided at a predetermined interval on one side of the sheet body 1p to which the posture bar 1a is attached. The hook 1i of the support column 2a is passed through the hole 1c and hooked. In addition, the hook 2i of the column 2b is passed through the hole 1d and hooked.

  The sheet body 1p is placed on the expansion / contraction members 3b and 4b of the expansion / contraction support members 3 and 4 in a state where the posture bar 1a of the sheet main body 1p is hooked on the hook 2i of the support columns 2a and 2b. Thus, the tent 100 is configured. The vertical, horizontal and height sizes of the tent 100 are about 200 cm to 250 cm. That is, the distance from the arm 3a to the column 2a of the tent 100, the distance from the column 2a to the column 2b, and the height of the columns 2a and 2b are about 200 cm to 250 cm.

  FIG. 2 is a perspective view showing a configuration example of the storage box 5 and the expansion / contraction support members 3 and 4. The storage box 5 shown in FIG. 2 includes mounting brackets 5a and 5b, legs 5c and 5d, a lid 5e, and a storage 5f. The foot portions 5c and 5d are rotatably attached to the bottom surface outside the storage portion 5f. For example, the center portion of the foot portions 5c and 5d and the bottom surface of the storage portion 5f are engaged with each other with the pin 5g. When the tent 100 is installed, the foot portions 5c and 5d are set to rotate so as to face the vertical direction with respect to the longitudinal direction of the storage portion 5f. Thereby, since the ground contact area of the bottom face of the storage portion 5f increases, the storage box 5 is stabilized. The shape of the legs 5c and 5d is, for example, a bifurcated shape.

  Mounting brackets 5a and 5b are attached to the bottom surface inside the storage portion 5f. For example, the mounting bracket 5a is an “L” -shaped sheet metal. The mounting bracket 5a is attached to the bottom surface of the storage portion 5f by resistance welding (spot welding) with a pair of mounting brackets 5a facing each other with a predetermined interval. One end of the arm 3a of the telescopic support member 3 is engaged between the mounting bracket 5a. In this example, one end of the arm 3a has a hole (not shown).

  The mounting bracket 5a also has a hole in the vertical plate 5j that rises perpendicularly to the bottom surface of the storage portion 5f. The hole of the arm 3a and the hole of the vertical plate 5j of the mounting bracket 5a are fitted and the pin 5k is inserted to prevent the pin 5k from coming off. In this way, the arm 3a is rotatably attached to the bottom surface of the storage box 5 by the mounting bracket 5a. The mounting bracket 5b is also the same “L” -shaped sheet metal as the mounting bracket 5a, and is attached to the bottom surface of the storage portion 5f, and one end of the arm 3b is engaged between the mounting bracket 5b.

  The lid 5e is attached to the storage 5f via a hinge 5i so as to be opened and closed. The depth of the lid part 5e is designed deeper than the depth of the storage part 5f. This is for accommodating the elastic members 3b and 4b (partially broken in the figure) attached to the tips of the arms 3a and 4a. In this way, the storage box 5 is configured.

  Further, posture maintaining members 3c and 4c are rotatably attached to the tips of the arms 3a and 4a. In this example, the tip of the arm 3a is formed in a circular arc shape, and the central part is perforated to form a fork. Furthermore, the arm 3a has a hole (not shown) penetrating the fork. Further, the engaging portion 3w of the posture maintaining member 3c is formed in a convex shape, and the convex engaging portion 3w has a hole (not shown). A convex engaging portion 3w is inserted into the fork of the arm 3a, the hole portion of the arm 3a and the hole portion of the engaging portion 3w are fitted, and the pin 3f is inserted to prevent the pin 3f from coming off. When attached in this way, the posture maintaining member 3c rotates along the arc at the tip of the arm 3a, with the pin 3f as a rotation axis. A row of lattice-shaped stretchable members 3b (partially broken in the figure) is attached to the tip of the posture maintaining member 3c. Also, the posture maintaining member 4c is attached to the tip of the arm 4a of the telescopic support member 4 in the same manner as the arm 3a. One row of lattice-shaped elastic members 4b is attached to one end of the posture maintaining member 4c. Thus, the storage box 5 and the expansion / contraction support members 3 and 4 are configured. The arms 3a and 4a are supported by the outer frame 5f 'of the storage portion 5f in the unfolded state in the figure.

  3A and 3B are perspective views showing functional examples of the storage box 5 and the expansion / contraction support members 3 and 4. The arms 3a and 4a of the telescopic support members 3 and 4 shown in FIG. 3A are transitions from the state shown in FIG. 2, that is, the state where the arms 3a and 4a are expanded to the folded state. In order to shift to this state, first, the lattice-like elastic members 3b and 4b (partially broken in the figure) attached to the tips of the arms 3a and 4a are contracted and folded. Next, the unfolded arm 3a shown in FIG. 2 is rotated approximately 180 ° counterclockwise with the pin 5k engaged with the mounting bracket 5a as the rotation axis.

  At this time, the posture maintaining member 3c attached to the distal end of the arm 3a is also used while maintaining the posture of the expansion / contraction member 3b attached to the distal end of the posture maintaining member 3c with the pin 3f as a rotation axis. 3a rotates and rotates. For example, the posture maintaining member 3c rotates so as to maintain a posture (horizontal posture) in which the elastic member 3b faces the ceiling. After the arm 3a is rotated 180 °, the telescopic member 3b attached to the tip of the posture maintaining member 3c maintains this horizontal posture and is positioned at the approximate center of the storage portion 5f.

  Similarly to the arm 3a, the unfolded arm 4a shown in FIG. 2 is rotated approximately 180 ° counterclockwise around the pin 5k engaged with the mounting bracket 5b. At this time, the extendable member 4b attached to the tip of the posture maintaining member 4c of the arm 4a maintains a horizontal posture and is positioned at the approximate center of the storage portion 5f.

  Since the elastic members 3b and 4b are located at the center, the elastic members 3b and 4b can be accommodated without the ends of the elastic members 3b and 4b protruding from the outer frame 5f 'of the accommodating portion 5f. Further, since the horizontal posture is maintained, when the lid portion 5e is closed, the lid portion 5e can be closed without the elastic members 3b and 4b being gripped by the lid portion 5e. In addition, after closing the cover part 5e, the hook 5m attached to the front of the cover part 5e is engaged with a hook engaging part (not shown) of the storage part 5f, and the cover part 5e is attached to the storage part 5f. Fix it.

  In the storage box 5 shown in FIG. 3B, the lid 5e of the storage box 5 is closed via a hinge 5i. A grip portion 5n is attached to the lid portion 5e. In this example, as shown in FIG. 3A, the lid 5e is closed with the arms 3a and 4a folded. Further, the leg portions 5c and 5d, which are set so as to be oriented in a direction perpendicular to the longitudinal direction of the storage portion 5f, are rotated so as to be oriented in a direction parallel to the longitudinal direction. Thereby, the expansion / contraction support members 3 and 4 having the arms 3a and 4a and the expansion and contraction members 3b and 4b can be compactly stored, and the expansion / contraction support member 3 is inspected for equipment such as an operation box such as a circuit breaker or a disconnecting switch. 4 can be easily carried with the gripping part 5n. Further, since the telescopic support members 4 and 5 and the storage box 5 are integrated, the storage space can be narrowed.

  4A and 4B are front views showing a configuration example of the extendable member 3b attached to the posture maintaining member 3c. The elastic member 3b shown in FIG. 4 is a member assembled in a line in a lattice shape, and includes an iron wire 3e, an engagement pin 3f, a piano wire (hard steel wire) 3g, a pin 3h, and a ring 3i.

  One end of each of the two iron wires 3e is rotatably engaged with the posture maintaining member 3c by an engagement pin 3f. The other ends of the two iron wires 3e engaged with the posture maintaining member 3c are rotatably engaged with the iron wire 3e 'by the engagement pins 3f. In addition, the substantially central portion of the two iron wires 3e 'is rotatably engaged by the engagement pin 3f. Thus, in this example, two iron wires 3e and two iron wires 3e 'are installed at the base of the elastic member 3b and assembled in a lattice shape.

  Each piano wire 3g is assembled in a lattice shape on iron wires 3e and 3e 'assembled in a lattice shape. One end of the iron wire 3e 'and one end of the piano wire 3g are rotatably engaged by a pin 3h. Further, the piano wire 3g and a substantially central portion of the piano wire 3g intersecting with the piano wire 3g are rotatably engaged by a pin 3h. Further, one end of the piano wire 3g whose center is engaged by the pin 3h is rotatably engaged with one end of the other piano wire 3g by the pin 3h. In this way, 16 piano wires 3g are assembled in a lattice pattern. The piano wire 3g ', which is approximately half the length of the piano wire 3g, is engaged with the uppermost piano wire 3g by a pin 3h at the uppermost portion of the piano wire 3g assembled in a lattice shape. The ring 3i is engaged by the pin 3h with the piano wire 3g 'having a substantially half length. In this manner, the elastic member 3b is assembled in a lattice shape by the iron wires 3e, 3e 'and the piano wires 3g, 3g' being engaged by the engagement pins 3f, 3h.

  In addition, the wire diameter of the piano wire 3g is about 3 mm-5 mm. The iron wires 3e and 3e 'are formed more firmly than the piano wire 3g. This is because the iron wires 3e and 3e 'installed at the base of the elastic member 3b support the load of the piano wire 3g installed above the elastic member 3b. Metal, resin, or the like is used as the material for the iron wires 3e, 3e '.

  The elastic member 3b includes a lock mechanism 3j in order to maintain the extended lattice shape. The lock mechanism 3j is composed of a stopper 3v and a hook portion 3p. The stopper 3v functions as an example of a bar member, and is attached to a predetermined position of the iron wire 3e of the elastic member 3b. For example, the stopper 3v is a rod-shaped member whose length can be adjusted, and one end of the stopper 3v is rotatably attached to a predetermined position of the iron wire 3e. The other end of the stopper 3v is locked to the hook portion 3p of the iron wire 3e '.

  The hook portion 3p functions as an example of a receiving portion, and is attached to the iron wire 3e 'at a position facing the stopper 3v. The hook 3p receives and fixes the stopper 3v. The locking mechanism 3j is set at a predetermined position of the hook 3p by rotating the stopper 3v, and fixes the elastic member 3b to a predetermined lattice shape and maintains the length of the elastic member 3b.

  The elastic member 3b shown in FIG. 4B is in a state in which the other end of the stopper 3v locked to the hook portion 3p of the iron wire 3e 'is removed, and the lattice-shaped elastic member 3b contracts. In this state, the elastic member 3b is stored in the storage box 5 shown in FIG. Since the other elastic member 4b shown in FIG. 1 has the same configuration as the elastic member 3b in the drawing, detailed description thereof is omitted.

  FIG. 5 is a front view showing a configuration example (No. 1) of the lock mechanism 3j. The stopper 3v of the lock mechanism 3j shown in FIG. 5 includes connecting rods 3k, 3m, screws 3n, and pins 3r. A hole is provided at the rear end of the connecting rod 3m. With the hole (not shown) of the engaging part of the iron wire 3e fitted in this hole, the pin 3r is inserted and prevented from coming off. As a result, the connecting rod 3m is fixed to the iron wire 3e and rotates around the pin 3r as a rotation axis.

  The connecting rod 3k is connected to the connecting rod 3m. For example, the connecting rod 3m is a cylindrical rod, and the diameter of the connecting rod 3m is set larger than the diameter of the connecting rod 3k. The small-diameter connecting rod 3k is inserted into the large-diameter connecting rod 3m, and the stopper 3v is set to a desired length. After the setting, the screw 3n is rotated to the right to bring the tip of the screw 3n into contact with the connecting rod 3k. In the abutted state, the screw 3n is further rotated clockwise to fix the connecting rod 3k and the connecting rod 3m in close contact with each other by pressure. Thereby, the stopper 3v set to the desired length can be formed.

  After the stopper 3v is formed, the tip of the leading connecting rod 3k of the stopper 3v is hooked and fixed at a predetermined position of the hook portion 3p of the iron wire 3e '. Thereby, after the lattice shape shown in FIG. 4A is formed, the operation of the elastic member 3b contracting due to its own weight of the elastic member 3b and shifting to the contracted shape shown in FIG. 4B can be suppressed.

  6A and 6B are explanatory views showing a configuration example (No. 2) of the lock mechanism 3j. 6A is a top view seen from the direction of arrow X1 in FIG. 6B is a cross-sectional view seen from the direction of the arrow X2 in FIG. 6A. The hook portion 3p of the lock mechanism 3j shown in FIG. 6B includes a hook plate 3s and a bottom plate 3t. The plurality of hooking plates 3s are welded and fixed to the bottom plate 3t with a predetermined interval in a state where the bottom plate 3t has a predetermined angle (about 45 °). The bottom plate 3t to which the plurality of hooking plates 3s are fixed is fixed to the recess 3x of the iron wire 3e 'with screws or the like. The tip of the connecting rod 3k of the stopper 3v is hooked on the hooking plate 3s of the bottom plate 3t fixed to the iron wire 3e '.

  Thereby, the expansion-contraction member 3b will be in the locked state (lock function). Accordingly, it is possible to stop the movement of the connecting rod 3k moving in the direction of the arrow Q by being added to the connecting rod 3k of the stopper 3v in the direction of the arrow P. Thus, as described in FIG. 5, after forming the lattice shape of the elastic member 3b, the elastic member 3b is contracted by its own weight by hooking the connecting rod 3k of the stopper 3v onto the hooking plate 3s. Thus, the movement to the contracted shape shown in FIG. 4B can be suppressed.

  7A and 7B are front views showing an example of functions of the lock mechanism 3j. The lock mechanism 3j shown in FIGS. 7A and 7B has a length adjustment function for adjusting the overall length of the elastic member 3b in addition to the lock function described above. This length adjustment function is applied when a range in which the sheet 1 shown in FIG. 1 is developed is set in accordance with the size of the device to be inspected.

  In this example, the connecting rod 3k of the stopper 3v of the lock mechanism 3j shown in FIG. 7A is in a state of being hooked and fixed on the hook plate 3s of the hook 3p shown in FIG. 6B (first state). At this time, an angle formed between the iron wire 3e 'and the iron wire 3e is defined as an angle θ1. Further, the distance between the pin 3f and the pin 3f 'is a distance L1. Similarly, each of the substantially rhombic lattices formed by the piano wires 3g shown in FIG. 4 also forms an angle θ1, and the distance between the pin 3h and the pin 3h ′ is also the distance L1.

  When the size of the device to be checked is small and the total length of the telescopic member 3b is adjusted to be shorter than that in the first state, the position where the stopper 3v of the lock mechanism 3j is hooked is adjusted. For example, the connecting rod 3k of the stopper 3v of the lock mechanism 3j shown in FIG. 7B is in a state of being hooked and fixed by the hook plate 3s ′ located at the lower stage of the hook plate 3s shown in FIG. 6B (second state). ). At this time, an angle formed between the iron wire 3e 'and the iron wire 3e is defined as an angle θ2. Further, the distance between the pin 3f and the pin 3f 'is a distance L2. Although not shown, each of the substantially rhombic lattices formed by the piano wires 3g also forms an angle θ2, and the distance between the pin 3h and the pin 3h ′ is also the distance L2.

  Here, comparing the first state and the second state, the relationship between the angle formed by the iron wire 3e ′ and the iron wire 3e is angle θ1> angle θ2, and the distance between the pin 3f and the pin 3f ′ is the distance L1. > Distance L2. Although not shown, the relationship between the angles formed by the piano wire 3g and the piano wire 3g is also angle θ1> angle θ2, and the distance between the pin 3h and the pin 3h ′ is also distance L1> distance L2. That is, each of the substantially rhombic lattices constituting the lattice shape of the second state is formed by crushing each lattice of the lattice shape of the first state, and the total length of the elastic member 3b is adjusted to be short. Thereby, the full length of the expansion-contraction member 3b can be adjusted short.

  FIG. 8 is a partially broken perspective view showing a configuration example of the piano wire 3g. Flat portions 3y and openings 3z are provided at both ends and the center of the piano wire 3g shown in FIG. For example, the flat portion 3y is formed by crushing the tip of a piano wire 3g having a circular cross section. The opening 3z is provided at a substantially central portion of the flat portion 3y.

  When connecting the piano wire 3g and another piano wire 3g ', the flat portions 3y of the piano wires 3g and 3g' are overlapped to match the position of the opening 3z of the flat portion 3y. After the fitting, the pin 3h is inserted into the opening 3z, and the retaining ring 30b is fitted into the recess 30a at the tip of the pin 3h. As a result, the piano wire 3g and the other piano wire 3g 'are rotatably coupled around the pin 3h as the rotation axis.

  9A and 9B are perspective views showing examples of use of the tent 100. FIG. In this example, the tent 100 is installed to assist in securing a work place in preparation for rainfall or the like when the operation box 50 such as a circuit breaker or a disconnecting switch is inspected. In this example, the tent 100 is disassembled into a compact shape for carrying and storage. For example, the telescopic support members 3 and 4 are stored in the storage box 5 as shown in FIG. 3B. In the support columns 2a and 2b, the fastening members 2g and 2h are removed, and the connecting rods 2d to 2f are separated. The sheet 1 is wound in a roll shape around the posture bar 1a. The posture bars 1a and 1b may be removed from the sheet 1 and the sheet 1 may be folded.

  The tent 100 shown in FIG. 9A is in a state where the framework of the tent 100 is completed. In order to complete the framework of the tent 100 as shown in FIG. 9A from the state in which the tent 100 has been disassembled into a compact shape, first, an operator has to put support columns on both sides of the operation box 50 shown in FIG. 9A. 2a and 2b are installed. For example, the operator inserts one end of the connecting rod 2e into the other end of the connecting rod 2d of the support column 2a, and after the insertion, the connecting portion of the connecting rods 2d and 2e is tightened and joined by the tightening member 2g. In this case, the heights of the columns 2a and 2b are adjusted so that the height of the operation box 50 is higher than the height of the operator.

  Next, the worker installs the storage box 5 in front of the operation box 50 in the carrying state shown in FIG. 3B. After the installation, the operator rotates and sets the feet 5c and 5d of the storage box 5 so as to face the direction perpendicular to the longitudinal direction of the storage 5f, and stably installs the storage box 5 on the ground. Thereafter, the operator releases the hook 5m of the lid 5e of the storage box 5 and opens the lid 5e. An operator installs the expansion-contraction support members 3 and 4 that support the sheet 1 after opening the lid 5e.

  In this example, the operator deploys the arm 3a of the telescopic support member 3 in the folded state shown in FIG. 3A. For example, the worker rotates the arm 3a by approximately 180 ° clockwise with the pin 5k (see FIG. 3A) engaged with the mounting bracket 5a as the rotation axis. At this time, the posture maintaining member 3c attached to the distal end of the arm 3a also has the pin 3f (see FIG. 3A) at the same time as the rotation axis, and the posture in which the telescopic member 3b attached to the distal end of the posture maintaining member 3c faces the ceiling ( Rotate to maintain a horizontal position.

  After the rotation, the operator stretches and curves the stretchable member 3b (see FIG. 4B) attached to the tip of the posture maintaining member 3c to form a lattice shape, and the ring 3i at the tip of the stretchable member 3b It is hooked and fixed to the hook 2i at the tip of the column 2a installed at a height. After fixing the ring 3i to the hook 2i of the column 2a, the operator hooks and fixes the stopper 3v of the lock mechanism 3j shown in FIG. 5 to the hook portion 3p. Thereby, while being able to maintain the lattice shape of the elastic member 3b formed in the lattice shape, the length of the elastic member 3b can be maintained constant. Therefore, the expansion / contraction support member 3 is stabilized. In this way, the telescopic support member 3 is installed.

  Similarly, the operator installs the other telescopic support member 4. For example, the operator unfolds the arm 4a of the expansion / contraction support member 4, extends the expansion / contraction member 4b attached to the tip of the arm 4a, and fixes it to the column 2b. Thereby, as shown to FIG. 9A, the framework for stretching the sheet | seat 1 in convex shape is completed.

  The tent 100 shown in FIG. 9B is in a state where the sheet 1 is stretched on the framework of the tent 100 shown in FIG. 9A and the assembly of the tent 100 is completed. In this way, in order to stretch the sheet 1 to the framework of the tent 100, first, the operator uses the holes 1c and 1d of the sheet 1 wound in a roll shape around the posture bar 1a as the support columns 2a and 2b. Hook the hook 2i. After being hooked, the operator develops the sheet 1 wound in a roll shape while rolling it on the elastic members 3b, 4b of the elastic support members 3, 4. The sheet 1 hangs down while drawing a convex curve along the shape of the curved elastic members 3b and 4b while being supported by the elastic support members 3 and 4. In this way, the sheet 1 is stretched on the framework of the tent 100, and the tent 100 is assembled.

  As described above, according to the tent 100 as the first embodiment of the present invention, when the operation box 50 is inspected, the work place of the operation box 50 is supplementarily secured. The expansion / contraction support members 3 and 4 having flexibility are provided, and these expansion / contraction support members 3 and 4 support both side end portions 1s and 1t of the sheet 1 covering a predetermined range of the work place of the operation box 50. .

  Therefore, the sheet 1 can be lifted by the expansion / contraction members 3b and 4b of the expansion / contraction support members 3 and 4 that are bent and developed in an arc shape, so that the sheet 1 can be formed in a convex shape. Thereby, since rain, dust, etc. do not accumulate in the sheet | seat 1 formed in convex shape, the extra force is not added to the expansion-contraction support members 3 and 4, and the said sheet | seat 1 can be stabilized over a long time. In addition, since the expansion / contraction support members 3 and 4 have expansion and contraction and flexibility, they have flexibility in positioning during assembly and can be easily assembled. Further, by contracting the telescopic support members 3 and 4, the transportable tent 100 can be provided.

  In addition, when the inspection work of the operation box 50 is completed and the assembled tent 100 is disassembled, the tent 100 is disassembled in an order opposite to the assembling order. That is, the worker once removes the sheet 1 developed on the expansion / contraction members 3b and 4b of the expansion / contraction support members 3 and 4 from the expansion / contraction members 3b and 4b. Thereafter, the worker forms the roll 1 by winding the sheet 1 toward the posture bar 1a with the posture bar 1b of the deployed sheet 1 as a core. Thereafter, the worker releases the stopper 3v hooked on the hook portion 3p of the lock mechanism 3j shown in FIG. After the release, the operator removes the ring 3i fixed to the hook 2i at the tip of the support pillars 2a and 2b, and contracts and folds the elastic members 3b and 4b that are curved and formed in a lattice shape.

  After contraction, the arms 3a and 4a that support the elastic members 3b and 4b are rotated approximately 180 ° counterclockwise. At this time, the posture maintaining members 3c and 4c attached to the tips of the arms 3a and 4b also rotate around the pin 3f (see FIG. 3A) as a rotation axis at the same time. For example, the posture maintaining member 3c rotates so as to maintain a posture (horizontal posture) in which the extendable member 3b attached to the tip of the posture maintaining member 3c faces the ceiling and is positioned at the center of the storage portion 5f. Thereby, the elastic members 3b and 4b and the arms 3a and 4a can be stored in the storage box 5 in a compact manner.

  Thereafter, the operator closes the cover 5e of the storage box 5, engages the hook 5m of the cover 5e with a hook engaging portion (not shown) of the storage 5f of the storage box 5, and closes the cover. The part 5e is fixed to the storage part 5f. After fixing, the operator rotates the leg portions 5c and 5d set so as to face the vertical direction with respect to the longitudinal direction of the storage portion 5f so as to face the direction parallel to the longitudinal direction. (See FIG. 3B). Thereafter, the columns 2a and 2b are disassembled. In this way, the tent 100 is disassembled and made compact.

  It is also conceivable to use a rod-like expansion / contraction member such as a fishing rod instead of the lattice-like expansion / contraction member 3b. In this case, the root of the rod-shaped expansion / contraction member is attached to the posture maintaining members 3c, 4c, the rod-shaped expansion / contraction member is extended, and the tip of the rod-shaped expansion / contraction member is attached to the hook 2i of the support columns 2a, 2b.

  In addition, the lattice-like stretchable members 3b and 4b support the sheet 1 by contacting the surface of each lattice to the sheet 1, but the lattice surfaces of the stretchable members 3b and 4b are vertically oriented (vertical). The corners of the lattices of the elastic members 3b and 4b may be supported so as to stand on the sheet 1. When the corners of the lattices of the elastic members 3b and 4b are supported so as to stand on the sheet 1, it becomes difficult to bend. Therefore, compared to the case where the surface of each lattice is in contact with the sheet 1 and the sheet 1 is supported, the sheet 1 Strength to support.

  Further, the tent 100 can be used not only for checking the operation box 50 but also for outdoor awning.

  Subsequently, a tent 200 as a second embodiment according to the present invention will be described. FIG. 10 is a perspective view showing a configuration example of the storage box 5 ′ and the expansion / contraction support members 3 ′ and 4 ′ in the tent 200. The same components as those of the tent 100 shown in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The storage box 5 ′ shown in FIG. 10 includes leg portions 5 c and 5 d, a lid portion 5 e, a storage portion 5 f and rails 5 p and 5 q. The foot portions 5c and 5d are rotatably attached to the bottom surface outside the storage portion 5f. The lid 5e is attached to the storage 5f via a hinge 5i so as to be opened and closed. A rail 5p and a rail 5q are attached in parallel to the inner bottom surface of the storage portion 5f of the storage box 5 '. The lengths of the rail 5p and the rail 5q are set equal. The shape of the engaging portion 5r of the rails 5p and 5b is an “H” shape.

  The telescopic support members 3 ′ and 4 ′ are configured by arms 3 a ′ and 4 a ′, telescopic members 3 b and 4 b, and position changing members 3 c ′ and 4 c ′. The arm 3a ′ of the telescopic support member 3 ′ functions as an example of a sliding arm portion, and is slidably attached so as to grab the neck portion of the “H” -shaped engagement portion 5r of the rail 5p. One end of 'is taken in and out of the storage box 5'. Further, the arm 4a 'of the telescopic support member 4' is slidably attached to the engaging portion 5r of the rail 5q, and one end of the arm 4a 'is taken in and out of the storage box 5'.

  Position change members 3c 'and 4c' are slidably attached to the arms 3a 'and 4a'. In this example, the shape of the engaging portion 5t of the position changing members 3c 'and 4c' is an "H" shape. The position changing members 3c 'and 4c' are slidably engaged with the "H" -shaped engaging portions 5t inserted into the slits 5s on the upper surfaces of the arms 3a 'and 4a'. The range of the slit 5s is from the front end portion of the arms 3a 'and 4a' to the vicinity of the rear end portion. This is to prevent the position changing member 3c 'from coming out of the rear end. An extensible member 3b (partially crushed in the figure) is attached to the tip of the position changing member 3c '. A telescopic member 4b is attached to the tip of the position changing member 4c '. Thus, the storage box 5 'and the expansion / contraction support members 3', 4 'are configured.

  Note that a retaining mechanism for preventing the arms 3a 'and 4a' from coming off the rails 5p and 5b may be provided. For example, an opening portion (not shown) having a predetermined depth is provided at the end portion of the engaging portion 5r of the rail 5p, and a self-standing claw portion (not shown) is provided at the end portion of the arm 3a '. If the arm 3a ′ is slid beyond the allowable amount, the claw portion of the arm 3a ′ automatically stands up and is caught by the opening when the arm 3a ′ passes through the opening of the rail 5p to slide the arm 3a ′. Stop. As a result, the arm 3a 'can be prevented from coming off the rail 5p.

  11A and 11B are perspective views showing functional examples of the storage box 5 ′ and the expansion / contraction support members 3 ′ and 4 ′. The arms 3a ′ and 4a ′ of the telescopic support members 3 ′ and 4 ′ shown in FIG. 11A are slid in the contracting direction from the state shown in FIG. 10, that is, the arms 3a ′ and 4a ′ are slid in the extending direction. And moved to the stored state. In order to shift to this state, first, the lattice-like elastic members 3b and 4b attached to the tips of the arms 3a 'and 4a' are contracted and folded. Next, the arm 3a ′ slid in the extending direction is slid in the contracting direction (inner direction of the storage portion 5f), and the position changing member 3c ′ of the arm 3a ′ is slid to the substantially central portion of the arm 3a ′. . Similarly, the arm 4a 'slid in the extending direction is slid in the contracting direction, and the position changing member 4c' of the arm 4a 'is slid to the substantially central portion of the arm 4a'.

  As a result, the arms 3a ′ and 4a ′ are accommodated in the storage portion 5f, and the positions of the elastic members 3b and 4b attached to the position changing members 3c ′ and 4c ′ are changed to the center. The telescopic members 3b and 4b can be accommodated without protruding the end of the outer frame 5f ′ of the accommodating part 5f. Moreover, since the elastic members 3b and 4b maintain the horizontal posture, when the lid 5e is closed, the lid 5e can be closed without the elastic members 3b and 4b being gripped by the lid 5e.

  A storage box 5 'shown in FIG. 11B is obtained by closing the lid 5e of the storage box 5' via a hinge 5i. A grip portion 5n is attached to the lid portion 5e. In this example, as shown in FIG. 11A, the lid 5e is closed with the arms 3a 'and 4a' folded. Further, the leg portions 5c and 5d, which are set so as to be oriented in a direction perpendicular to the longitudinal direction of the storage portion 5f, are rotated so as to be oriented in a direction parallel to the longitudinal direction.

  Thus, according to the storage box 5 ′ and the expansion / contraction support members 3 ′ and 4 ′ of the tent 200 as the second embodiment according to the present invention, the arms 3a ′ and 4a ′ that support the expansion and contraction members 3b and 4b are provided. It is slidably stored in the storage box 5 ′.

  Therefore, the length of the arms 3a 'and 4a' can be adjusted to a desired length. Thereby, the width | variety of the tent 200 can be set correctly according to the magnitude | size of an apparatus and the environment of a work place.

  Next, a tent 300 as a third embodiment according to the present invention will be described. 12A and 12B are perspective views showing a configuration and usage example of the tent 300. FIG. The same components as those of the tent 100 shown in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. The tent 300 is installed in order to secure a work place as an auxiliary during the inspection work of the switchgear 60 having at least two hooks 60a and 60b, which is an example of a hook portion.

  The tent 300 includes a sheet 1, stretchable support members 3 and 4, and a storage box 5. One end of the expansion / contraction support member 3 is locked to the hook 60 a of the switch gear 60, has expansion and contraction and flexibility, and the other end is installed on the ground to support one side end 1 s of the sheet 1. The expansion / contraction support member 4 has one end locked to a hook 60b different from the hook 60a to which the expansion / contraction support member 3 is locked. The side end portion 1t is supported.

  The expansion / contraction support member 3 includes an arm 3a and an expansion / contraction member 3b. A ring 3i (see FIG. 4A) at the tip of the elastic member 3b is hooked on the hook 60a and fixed. Similarly, the expansion / contraction support member 4 includes an arm 4a and an expansion / contraction member 4b. The ring 3i at the tip of the elastic member 4b is hooked and fixed to the hook 60b.

  After fixing the rings 3i of the elastic members 3b and 4b to the hooks 60a and 60b, the sheet 1 is stretched on the framework of the tent 300 shown in FIG. 12A, and the tent 300 is assembled. In this example, since the rings 3i of the telescopic support members 3 and 4 of the tent 300 are locked and fixed to the hooks 60a and 60b of the switch gear 60, the tent 300 is fixed to the column 2a of the tent 100 shown in FIG. 2b is not required. Thereby, the number of parts constituting the tent 300 can be reduced as compared with the tent 100.

  13A and 13B are side views showing an example of coupling of the tent 300 and the switch gear 60. FIG. FIG. 13B is an enlarged view of the broken line circle shown in FIG. 13A. The shape of the hooks 60a and 60b shown in FIG. 13B is a substantially “J” shape. The hooks 60a and 60b are attached to the front side (operation side) of the switch gear 60 so that the arc portions 60c of the hooks 60a and 60b face upward.

  The ring 3i at the tip of the telescopic member 3b is inserted from the tip of the arc portion 60c of the hook 60a, and the telescopic member 3b is fixed to the hook 60a. Similarly, the ring 3i at the tip of the elastic member 4b is inserted from the tip of the arc portion 60c of the other hook 60b, and the elastic member 4b is fixed to the hook 60b. Further, the holes 1c and 1d of the sheet 1 are mounted and fixed to the hooks 60a and 60b. In this way, the tent 300 and the switch gear 60 are coupled.

  As described with reference to FIGS. 12 and 13, according to the tent 300 according to the third embodiment of the present invention, when the switchgear 60 having at least two hooks 60 a and 60 b is inspected, In order to supplementarily secure the work place of the switch gear 60, one end is locked to the hooks 60a, 60b of the switch gear 60, and includes expansion and contraction support members 3 and 4 having expansion and contraction, These expansion / contraction support members 3 and 4 support both end portions of the sheet 1 covering a predetermined range of the work place of the switch gear 60.

  Therefore, the sheet 1 can be lifted by the expansion and contraction support members 3 and 4 that are bent and developed in an arc shape, and the sheet 1 can be formed in a convex shape. Thereby, since rain, dust, etc. do not accumulate on the sheet 1 formed in a convex shape, an extra force is not applied to the expansion / contraction support members 3, 4, and the sheet 1 can be stabilized for a long time. In addition, since the ends of the telescopic support members 3 and 4 are locked using the hooks 60a and 60b of the switch gear 60, the number of parts can be reduced.

  The present invention is suitable for application to a tent for securing a working place of the equipment in an auxiliary manner during inspection work of equipment such as a circuit breaker, a disconnecting switch, and a switchgear.

1 is a perspective view showing a configuration example of a tent 100 as a first embodiment according to the present invention. It is a perspective view which shows the structural example of the storage box 5 and the expansion-contraction support members 3 and 4. FIG. (A) And (B) is a perspective view which shows the function example of the storage box 5 and the expansion-contraction support members 3 and 4. FIG. (A) And (B) is a front view which shows the structural example of the expansion-contraction member 3b. It is a front view which shows the structural example (the 1) of the locking mechanism 3j. (A) And (B) is explanatory drawing which shows the structural example (the 2) of the locking mechanism 3j. (A) And (B) is a front view which shows the function example of the locking mechanism 3j. It is a fragmentary perspective view which shows the structural example of the piano wire 3g. (A) And (B) is a perspective view which shows the usage example of the tent 100. FIG. It is a perspective view which shows the structural example of storage box 5 'and expansion-contraction support member 3', 4 '. (A) And (B) is a perspective view which shows the function example of storage box 5 'and expansion-contraction support member 3', 4 '. (A) And (B) is a perspective view which shows the structure and usage example of the tent 300. FIG. (A) And (B) is a side view which shows the example of a coupling | bonding of the tent 300 and the switchgear 60. FIG.

Explanation of symbols

1 sheet 2a, 2b strut (first and second support members)
3, 4 Telescopic support members (first and second telescopic support members)
3a, 4a arm (rotating arm)
3a ', 4a' arm (sliding arm)
3b, 4b Telescopic members 3c, 4c (Attitude maintaining member)
3j Lock mechanism 3v Stopper (bar member)
3p hook (receiving part)
5 Storage box (storage box)
100, 200, 300 Tents (working aids)

Claims (4)

A work auxiliary tool for assisting in securing the work place of the equipment at the time of equipment inspection work,
A sheet covering a predetermined range of the work place of the device;
First and second support members for supporting one side of the sheet;
A first telescopic support member having one end locked to the first support member, stretchable and flexible, and having the other end installed on the ground and supporting one side end of the sheet;
A second telescopic support member having one end locked to the second support member, stretchable and flexible, and having the other end installed on the ground and supporting the other side end of the sheet ;
A storage box for storing the first and second telescopic support members ;
The first and second telescopic support members are
One end of the storage box is rotatably attached to a predetermined position, and the other end of the rotary arm is inserted into and removed from the storage box.
A posture maintaining member rotatably attached to the tip of the rotating arm portion;
Attached to the position maintaining member, elastic and had a flexible, and a telescopic member of the lattice shape of a line,
The posture maintaining member is
Wherein while the posture of the elastic member is kept constant, work for aid characterized in that rotates together with the rotation of the rotating arms. A work auxiliary tool for assisting in securing the work place of the equipment at the time of equipment inspection work,
A sheet covering a predetermined range of the work place of the device;
First and second support members for supporting one side of the sheet;
A first telescopic support member having one end locked to the first support member, stretchable and flexible, and having the other end installed on the ground and supporting one side end of the sheet;
A second telescopic support member having one end locked to the second support member, stretchable and flexible, and having the other end installed on the ground and supporting the other side end of the sheet;
A storage box for storing the first and second telescopic support members;
The first and second telescopic support members are
A sliding arm portion slidably attached to a predetermined position of the storage box, one end of which is withdrawn / removed from the storage box;
A position changing member slidably attached to the sliding arm;
Attached to the position changing member, elastic and had a flexible, and a telescopic member of the lattice shape of a line,
The position changing member is
The work for aid you and changes the position of the elastic member slidingly in a predetermined direction together with the slide arm portion slides. The elastic member includes a lock mechanism,
The locking mechanism is
A rod member rotatably attached to a predetermined position of the elastic member;
A receiving part for receiving and fixing the bar member;
It said bar member is set at a predetermined position of being rotated the receiving portion, wherein the elastic member is fixed in a predetermined grid pattern, according to claim 1 or 2, characterized in that to maintain the length of the elastic member Work aids described in 1. A work auxiliary tool for auxiliaryly securing the work place of the equipment at the time of inspection work of the equipment having at least two hooks,
A sheet covering a predetermined range of the work place of the device;
A first expansion / contraction support member, one end of which is locked to the hooking portion of the device, has expansion and contraction and flexibility, and the other end is installed on the ground and supports one side end of the sheet;
One end is locked to a hooking portion different from the hooking portion to which the first telescopic support member is locked, and the other end of the seat is stretched and flexible, and the other end is installed on the ground. a second elastic support member for supporting the side end portion of,
A storage box for storing the first and second telescopic support members ;
The first and second telescopic support members are
One end of the storage box is rotatably attached to a predetermined position, and the other end of the rotary arm is inserted into and removed from the storage box.
A posture maintaining member rotatably attached to the tip of the rotating arm portion;
A row of lattice-shaped elastic members attached to the posture maintaining member and having expansion and contraction and flexibility;
The posture maintaining member is
A work auxiliary tool that rotates together with the rotation of the rotating arm portion while maintaining the posture of the elastic member constant .

Images