JP7047648B2 - Locking device for construction machinery and positioning method for locking device - Google Patents

Description

The present invention relates to a locking device for construction machinery and a method for positioning the locking device.

Conventionally, in order to perform maintenance and inspection work of the equipment arranged inside the upper swing body, an opening is formed in the upper swing body, and an opening / closing cover that can be opened and closed is provided so as to cover the opening. Construction machinery is known (see, for example, Patent Document 1).

Patent Document 1 discloses a locking device in which a latch mechanism is provided in the opening / closing cover and a striker is provided in the opening. Then, when the open / close cover is maintained in the closed state, the claw of the latch mechanism is engaged with the striker, while when the open / close cover is opened, the rotation lever of the latch mechanism is operated to rotate the claw. , I try to disengage the claw and striker.

Japanese Unexamined Patent Publication No. 2016-223122

By the way, in the conventional locking device, there is a possibility that the engagement state between the claw of the latch mechanism and the striker may vary due to the variation in component accuracy and assembly, but the latch mechanism is in the state where the opening / closing cover is closed. The engagement state between the claw and the striker cannot be visually recognized.

Therefore, first, the position of the striker is roughly determined, the striker is attached near the opening, and then the open / close cover is closed, and the claw of the latch mechanism is hooked on the striker. Then, the degree of catching between the claws of the latch mechanism and the striker at this time is determined based on the sense of touch of the operator and the like, and the open / close cover is opened again to adjust the position of the striker.

However, if the position of the striker is adjusted based on the sense of the operator, for example, when the claw of the latch mechanism is deeply caught by the striker, there is a problem that the opening / closing cover is difficult to open. On the other hand, when the claws of the latch mechanism are shallowly caught on the striker, there is a problem that the claws come off from the striker due to vibration caused by the shaking of the vehicle and the opening / closing cover is unintentionally opened.

The present invention has been made in view of this point, and an object of the present invention is to prevent variations in the engagement state between the engaging claws of the latch member and the engaged portion of the striker member.

The present invention is intended for a lock device of a construction machine for locking an opening / closing cover formed in an upper swing body at a closed position, and the following solutions have been taken.

That is, the first invention comprises a latch member provided with an engaging claw and attached to the opening / closing cover.
An engaged portion to be engaged with the engaging claw is provided, and a striker member attached so as to be position-adjustable with respect to the upper swing body is provided.
The latch member or the opening / closing cover is formed with a latch-side positioning hole penetrating in the thickness direction of the opening / closing cover.
When the engaging claw engages with the engaged portion in a predetermined engagement state with the striker member, the striker side positioning hole is located at a position where the center substantially coincides with the latch side positioning hole. Is characterized by being formed.

In the first invention, the latch side positioning hole is formed in the latch member or the opening / closing cover, and the striker side positioning hole is formed in the striker member. When the engaging claw engages with the engaged portion in a predetermined engaged state, the center of the latch-side positioning hole and the center of the striker-side positioning hole substantially coincide with each other when viewed from the latch-side positioning hole. ing. This allows the operator to confirm whether the engaging claw and the engaged portion are in a predetermined engaged state with the open / close cover closed. Here, the predetermined engaging state is an engaging state in the positional relationship between the engaging claw and the engaged portion determined at the design stage, and for example, the engaging claw is deeply caught on the engaged portion. This is the optimum engagement state in which the opening / closing cover does not become difficult to open, and the opening / closing cover does not unintentionally open due to the engaging claws being caught shallowly on the engaged portion. Further, by configuring the striker member so that the position can be adjusted with respect to the upper swing body, the position of the striker member can be adjusted from the outside of the opening / closing cover, and the engaging state between the engaging claw and the engaged portion can be adjusted. It is possible to suppress the occurrence of variation in. Specifically, the striker member is moved to adjust the position while inserting the rod-shaped positioning jig through the latch-side positioning hole and inserting it into the striker-side positioning hole. As a result, the center positions of the latch-side positioning hole and the striker-side positioning hole can be accurately aligned without relying on the operator's feeling, which improves workability and shortens the mounting time. Further, since the structure is relatively simple, that is, the latch side positioning hole is formed in the latch member or the opening / closing cover, and the striker side positioning hole is formed in the striker member, so that the cost increase can be suppressed. The positioning jig is not a dedicated jig corresponding to the hole diameter of the latch side positioning hole or the striker side positioning hole, but can be substituted by inserting a shaft portion such as a Phillips screwdriver into the hole, for example.

The second invention is the first invention.
The hole diameter of the latch-side positioning hole and the hole diameter of the striker-side positioning hole are characterized by having substantially the same size.

In the second invention, the latch side positioning hole and the striker side positioning hole are formed with substantially the same hole diameter. As a result, the center positions of the latch-side positioning hole and the striker-side positioning hole can be aligned by simply inserting a rod-shaped positioning jig that fits into the latch-side positioning hole and the striker-side positioning hole.

In the third invention, in the first invention,
The striker member is configured to be bolted to the upper swing body.
An access penetration that enables the striker side positioning hole and the first fastening bolt for fastening the bolt to be visually visible and the first fastening bolt can be fastened to the latch member with the open / close cover closed. A hole is formed.

According to the third invention, since the access through hole can be used not only for positioning but also for fastening the first fastening bolt, positioning and fixing can be performed while visually observing the striker member with the opening / closing cover closed. You can. Therefore, the striker member can be positioned extremely accurately.

In the fourth invention, in the third invention,
In addition to the first fastening bolt, the striker member is configured to be bolted to the upper swivel body with a second fastening bolt that cannot be fastened from the access through hole.

According to the fourth invention, since the second fastening bolt cannot be loosened from the access through hole, the crime prevention effect is ensured.

In the fifth invention, in the third or fourth invention,
The access through hole is detachably covered with a blind cap.

According to the fifth invention, the blindfold cap improves the appearance and secures soundproofing, dustproofing, and waterproofing effects.

A sixth invention is a method for positioning a lock device of a construction machine for locking an opening / closing cover formed in an upper swing body at a closed position.
The locking device includes a latch member provided with an engaging claw and attached to the opening / closing cover, and a striker member provided with an engaged portion engaged with the engaging claw.
The latch member is formed with a latch-side positioning hole that penetrates in the thickness direction of the opening / closing cover.
When the engaging claw engages with the engaged portion in a predetermined engagement state with the striker member, the striker side positioning hole is located at a position where the center substantially coincides with the latch side positioning hole. Is formed,
A step of temporarily fixing the striker member to the upper swing body so that the position can be adjusted, and
By closing the open / close cover and inserting a rod-shaped positioning jig through the latch-side positioning hole and inserting it into the striker-side positioning hole, the position of the striker member is adjusted, and the latch-side positioning hole and the striker-side positioning are performed. The process of roughly matching the center position with the hole,
It is characterized by including a step of opening the opening / closing cover and fixing the striker member to the upper swing body at a position after adjusting the position.

In the sixth invention, a rod-shaped positioning jig is inserted through the latch-side positioning hole and inserted into the striker-side positioning hole so that the center positions of the latch-side positioning hole and the striker-side positioning hole are substantially aligned with each other. The position of the member is adjusted. In this way, the position of the striker member can be adjusted from the outside of the open / close cover by using the positioning jig, and it is possible to suppress the variation in the engagement state between the engaging claw and the engaged portion. ..

In the seventh invention, it is premised on the method for positioning the lock device of the construction machine according to any one of the third to the fifth.
The method is
A step of temporarily fixing the striker member to the upper swing body so that the position can be adjusted, and
By closing the opening / closing cover, inserting a rod-shaped positioning jig through the latch-side positioning hole through the access through hole, and inserting the rod-shaped positioning jig into the striker-side positioning hole, the position of the striker member is adjusted and the latch-side positioning is performed. The process of substantially matching the center position of the hole and the striker side positioning hole,
This includes a step of fixing the striker member to the upper swing body at a position after adjusting the position by fastening the first fastening bolt through the access through hole with the opening / closing cover closed.

According to the seventh invention, not only can the position of the striker member be adjusted from the outside of the opening / closing cover in the access through hole, but also the first fastening bolt while looking at the striker member with the opening / closing cover closed. Can be fastened and fixed. Therefore, it is possible to more reliably suppress the variation in the engaging state between the engaging claw and the engaged portion.

According to the present invention, the operator can adjust the position of the striker member by confirming the engaged state with the engaged claw and the engaged portion with the open / close cover closed, and can adjust the position of the engaged claw and the engaged portion. It is possible to suppress variations in the engagement state with the engaging portion.

It is a side view which shows the structure of the construction machine which concerns on Embodiment 1. FIG. It is a side view which shows the structure of a striker member. It is sectional drawing which shows the structure of the lock device before locking the open / close cover. It is sectional drawing which shows the structure of the lock device after locking the open / close cover. It is sectional drawing which shows the structure of the lock device before positioning. It is sectional drawing which shows the structure of the lock device after positioning. It is a perspective view which shows the structure of the construction machine which concerns on Embodiment 2. It is a side view which shows the structure of a striker member. FIG. 8 is a sectional view taken along line IX-IX of FIG. It is a partially enlarged side view of FIG. FIG. 9 is a partially enlarged cross-sectional view of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the following description of the preferred embodiment is essentially merely an example and is not intended to limit the present invention, its application or its use. In each figure, the vertical and front-back and left-right directions are indicated by arrows. Unless otherwise specified, the directions such as up and down will be described according to the directions indicated by these arrows.

(Embodiment 1)
As shown in FIG. 1, the construction machine 10 includes a crawler type lower traveling body 11, a swivel bearing 12, and an upper swivel body 13 rotatably supported via the swivel bearing 12.

The upper swivel body 13 includes a swivel frame 14 provided with a swivel bearing 12, a cab 15 as a rectangular box-shaped driver's cab, and an attachment 16 swingably supported on the front side of the swivel frame 14.

At the rear of the upper swing body 13, an engine room 17 in which an engine (not shown) is housed is provided. The engine room 17 is partitioned by a counterweight 18 mounted along the outer peripheral edge of the rear portion of the upper swing body 13 and an engine cover 19 that covers the periphery of the engine room 17 together with the counterweight 18.

A machine room 20 is provided on the side of the cab 15 in the upper swivel body 13, that is, on the right side of the attachment 16. A fuel tank, a hydraulic oil tank, a control valve, and the like (not shown) are housed in the machine room 20.

The machine room 20 is covered with a machine room cover 21. An opening 22 is provided on the right side surface of the machine room cover 21. A front column 23 and a rear column 24 are erected on the front side and the rear side of the opening 22.

The opening 22 is closed by an opening / closing cover 25 so as to be openable / closable. The opening / closing cover 25 is rotatably supported via a hinge 26 attached to the rear support column 24. By rotating the opening / closing cover 25 via the hinge 26, the front portion of the opening / closing cover 25 can be moved rearward to open the opening 22. A sealing member 27 is provided on the peripheral edge of the opening / closing cover 25 on the machine room 20 side (see FIG. 3).

As shown in FIGS. 2 to 4, the opening / closing cover 25 is locked at the closed position by the locking device 30. The locking device 30 has a striker member 31 and a latch member 40.

The striker member 31 is attached to a mounting bracket 23a extending rearward from the front support column 23. The striker member 31 has an engaging shaft 32 as a round bar-shaped engaged portion extending in the vertical direction, and a holding bracket 33 for holding the engaging shaft 32.

An elongated hole 33a extending in the front-rear direction is formed at the front end portion of the holding bracket 33. The holding bracket 33 is fastened to the mounting bracket 23a of the front support column 23 by a fastening bolt 35 inserted into the elongated hole 33a. In the temporarily fixed state in which the fastening bolt 35 is loosened, the position of the striker member 31 can be adjusted in the front-rear direction. At the rear position of the holding bracket 33, the engaging shaft 32 in a vertically extended posture is held. A notch 33b is formed in the rear portion of the holding bracket 33 to avoid interference with the engaging claw 43 engaged with the engaging shaft 32.

The latch member 40 is attached to the opening / closing cover 25. The latch member 40 is provided so as to be rotatable around the case 41 attached to the opening / closing cover 25, the central shaft 42 extending in the vertical direction in the case 41, and the central shaft 42, and engages with the engaging shaft 32. The engagement state of the engagement claw 43, the urging spring 44 that urges the engagement claw 43 toward the engagement position with the engagement shaft 32, and the engagement claw 43 with the engagement shaft 32 is released. It has a rotating lever 45 that is operated so as to move in a direction.

Then, in order to maintain the closed state of the open / close cover 25, as shown by the solid line in FIG. 4, the engaging claw 43 of the latch member 40 and the engaging shaft 32 of the striker member 31 are engaged with each other.

On the other hand, when opening the opening / closing cover 25, as shown by a virtual line in FIG. 4, the rotating lever 45 of the latch member 40 is operated to rotate the engaging claw 43, and the engaging claw 43 of the latch member 40 is opened. And the striker member 31 are disengaged from the engaging shaft 32.

By the way, there is a possibility that the engagement state between the engagement claw 43 of the latch member 40 and the engagement shaft 32 of the striker member 31 may vary due to the component accuracy of the lock device 30 and the variation at the time of assembling the opening / closing cover 25. There is.

Conventionally, the position of the engaging shaft 32 of the striker member 31 is adjusted based on the sense of the operator. Therefore, for example, when the engaging claw 43 is deeply caught on the engaging shaft 32, the opening / closing cover is used. 25 becomes difficult to open. Further, when the engaging claw 43 is shallowly caught on the engaging shaft 32, the engaging claw 43 is disengaged from the engaging shaft 32 due to vibration due to the shaking of the vehicle or the like, and the opening / closing cover 25 is intended. It will open without opening.

Therefore, in the present embodiment, it is possible to suppress the variation in the engagement state between the engagement shaft 32 and the engagement claw 43 without relying on the sense of the operator.

Specifically, as shown in FIG. 4, the case 41 of the latch member 40 is formed with a latch-side positioning hole 46 penetrating in the thickness direction of the opening / closing cover 25. Further, the holding bracket 33 of the striker member 31 is formed with a striker-side positioning hole 34 penetrating in the vehicle width direction. The hole diameter of the latch-side positioning hole 46 is formed to be substantially the same as the hole diameter of the striker-side positioning hole 34.

The striker-side positioning hole 34 is formed at a position where the centers of the engaging claws 43 substantially coincide with each other when viewed from the latch-side positioning hole 46 when the engaging claw 43 engages with the engaging shaft 32 in a predetermined engaged state. ..

Here, the predetermined engaging state is an engaging state in the positional relationship between the engaging claw 43 and the engaging shaft 32 determined at the design stage, and for example, the engaging claw 43 has the engaging claw 43 with respect to the engaging shaft 32. Optimal engagement state that does not cause problems such as the opening / closing cover 25 being caught deeply and becoming difficult to open, or the engaging claw 43 being caught shallowly with respect to the engaging shaft 32 and the opening / closing cover 25 being unintentionally opened. That is.

As a result, the operator has the engaging claw 43 and the engaging shaft 32 in a predetermined engaging state with the opening / closing cover 25 closed, that is, the latch side positioning hole 46 and the striker side positioning hole 34. It can be confirmed whether the centers of and are almost the same.

-How to position the lock device-
In FIG. 5, as an example of a state in which the centers of the latch-side positioning hole 46 and the striker-side positioning hole 34 do not substantially coincide with each other, the striker member 31 is located behind the original mounting position, and the engagement shaft is shown. It shows a state in which the engaging claw 43 is shallowly caught with respect to 32.

Therefore, the position of the striker member 31 is adjusted so that the engaging shaft 32 and the engaging claw 43 are in the optimum engaging state by the following procedure.

First, the striker member 31 is temporarily fixed by loosening the fastening bolt 35 that is fastened to the mounting bracket 23a of the front support column 23, and the position of the striker member 31 can be adjusted in the front-rear direction.

Then, with the open / close cover 25 closed, the positioning jig 50 is inserted through the latch-side positioning hole 46 and inserted into the striker-side positioning hole 34. The positioning jig 50 is formed of a round bar-shaped member having a tapered tip, and has a shape that can be easily inserted into the latch-side positioning hole 46 and the striker-side positioning hole 34.

Here, the latch-side positioning hole 46 and the striker-side positioning hole 34 have substantially the same hole diameter. Therefore, by using a positioning jig 50 having an outer diameter substantially the same as these hole diameters as the positioning jig 50, the latch side positioning hole 46 and the striker side positioning hole accompany the insertion operation of the positioning jig 50. The center position with 34 can be accurately aligned (see FIG. 6).

After that, the opening / closing cover 25 is opened and the fastening bolt 35 is tightened to fix the striker member 31 to the mounting bracket 23a of the front support column 23. This completes the positioning of the lock device 30.

(Embodiment 2)
7 to 11 show the second embodiment of the present invention, which is different from the first embodiment in that the fixing structure of the striker and the like are different. In the present embodiment, the same parts as those in FIGS. 1 to 6 are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 7, the opening 122 on the left side of the construction machine 110 of the present embodiment is closed by the opening / closing cover 125 so as to be openable / closable. The opening / closing cover 125 and its surrounding structure are different in size and mounting position because the model of the construction machine 110 is different from that of the first embodiment, but the basic configuration is the same as that of the first embodiment. The explanation is omitted.

As shown in FIGS. 8 to 11, the opening / closing cover 125 is locked in the closed position by the locking device 130. The locking device 130 has a striker member 131 and a latch member 140.

The striker member 131 is attached to a mounting bracket 123a extending rearward from the front support column 123. In the present embodiment, the striker member 131 is made of, for example, a plate-shaped steel plate, and one end side edge portion constitutes an engaged portion 131a. In this striker member 131, bolt insertion holes 131b and 131c composed of two oval elongated holes are formed, for example, side by side on a horizon. The first fastening bolt 132 is inserted into the first bolt insertion hole 131b on the engaged portion 131a side and is fastened to the first screw hole 123b made of a nut or the like welded to the mounting bracket 123a extending from the front support column 123. It has become like. Similarly, the second fastening bolt 133 is inserted into the second bolt insertion hole 131c on the front support column 123 side and fastened to the second screw hole 123c made of a nut or the like welded to the mounting bracket 123a. .. In the temporarily fixed state in which the first and second fastening bolts 132 and 133 are loosened, the position of the striker member 131 can be adjusted in the front-rear direction.

The latch member 140 is attached to the opening / closing cover 125. Similar to the first embodiment, as shown in FIG. 9, the latch member 140 has a case 41, a central shaft 42, an engaging claw 43, an urging spring 44, and a rotating lever 45. Then, when maintaining the closed state of the open / close cover 125, as shown by the solid line in FIG. 9, the engaging claw 43 of the latch member 140 and the engaged portion 131a of the striker member 131 engage with each other. On the other hand, when opening the opening / closing cover 125, as shown by a virtual line in FIG. 9, the rotation lever 45 of the latch member 140 is operated to rotate the engaging claw 43, and the engaging claw 43 of the latch member 140 is opened. And the striker member 131 are disengaged from the engaged portion 131a.

As shown in an enlarged manner in FIG. 11, in the present embodiment, instead of the case 41 of the latch member 140, the positioning bracket 147 fixed to the opening / closing cover 125 has a latch-side positioning hole penetrating in the thickness direction of the opening / closing cover 125. 146 is formed. Further, a striker-side positioning hole 134 penetrating in the vehicle width direction is formed between the first bolt insertion hole 131b and the second bolt insertion hole 131c of the striker member 131. The hole diameter of the latch-side positioning hole 146 is formed to be substantially the same as the hole diameter of the striker-side positioning hole 134. Further, the mounting bracket 123a is formed with a jig insertion hole 123d formed of an elongated hole at a position corresponding to the striker side positioning hole 134.

The latch member 140 is formed with a substantially circular access through hole 148 so large that the latch side positioning hole 146 and the first bolt insertion hole 131b (first screw hole 123b) can be visually recognized. The access through hole 148 is formed to be large enough to fasten the first fastening bolt 132 to the first screw hole 123b and to the extent that the second fastening bolt 133 cannot be loosened. That is, since the second fastening bolt 133 cannot be loosened from the access through hole 148, the crime prevention effect is ensured.

On the other hand, the access through hole 148 is normally covered with a blind cap 149 made of an elastic body such as rubber so as to be removable. The blindfold cap 149 improves the appearance and ensures soundproofing, dustproofing, and waterproofing. Further, the latch member 140 is provided with a key portion 150, and when the hook portion 150 is locked, the rotary lever 45 cannot be pulled toward you and the open / close cover 125 cannot be opened. ing.

As shown in FIG. 11, the striker-side positioning hole 134 is substantially centered when the engaging claw 43 is engaged with the engaged portion 131a in a predetermined engaged state when viewed from the latch-side positioning hole 146. It is formed at the same position.

As a result, the operator has the engaging claw 43 and the engaged portion 131a in a predetermined engaging state with the opening / closing cover 125 closed, that is, the latch side positioning hole 146 and the striker side positioning hole. It can be confirmed whether the center of the 134 is substantially the same.

Then, in that state, the first fastening bolt 132 can be fastened through the relatively large access through hole 148.

-How to position the lock device-
In the present embodiment, first, the first and second fastening bolts 132, in which the striker member 131 is fastened to the mounting bracket 123a of the front support column 123, with the blind cap 149 removed to expose the access through hole 148, The 133 is put into a loosened temporary fixing state, and the position of the striker member 131 can be adjusted in the front-rear direction.

Next, with the open / close cover 125 closed, the access through hole 148 is passed through, and the positioning jig 50 is inserted through the latch side positioning hole 146 and inserted into the striker side positioning hole 134.

Next, the first fastening bolt 132 is fastened.

Next, the opening / closing cover 125 is opened and the second fastening bolt 133 is tightened to firmly fix the striker member 131 to the mounting bracket 123a. This completes the positioning of the locking device 130.

In the present embodiment, the access through hole 148 can be used not only for positioning but also for fastening the first fastening bolt 132, so that the striker member 131 can be visually positioned and fixed. Therefore, the striker member 131 can be positioned extremely accurately.

10 Construction machinery
13 Upper swivel body
22 opening
25 Open / close cover
30 lock device
31 Striker member
32 Engagement shaft (engaged part)
34 Striker side positioning hole
40 Latch member
43 Engagement claw
46 Latch side positioning hole
50 Positioning jig 110 Construction machinery
122 opening
123 Front support
123a mounting bracket
123b 1st screw hole
123c 2nd screw hole
123d Jig insertion hole
125 Open / close cover
130 lock device
131 Striker member
131a engaged part
131b 1st bolt insertion hole
131b, 131c Bolt insertion hole
131c 2nd bolt insertion hole
132 First fastening bolt
133 2nd fastening bolt
134 Striker side positioning hole
140 Latch member
146 Latch side positioning hole
147 Positioning bracket
148 access through hole
149 blindfold cap
150 key part

Claims (7)

A lock device for construction machinery for locking an opening / closing cover that can open / close an opening formed in an upper swing body at a closed position.
A latch member provided with an engaging claw and attached to the opening / closing cover, and
An engaged portion to be engaged with the engaging claw is provided, and a striker member attached so as to be position-adjustable with respect to the upper swing body is provided.
The latch member or the opening / closing cover is formed with a latch-side positioning hole penetrating in the thickness direction of the opening / closing cover.
When the engaging claw engages with the engaged portion in a predetermined engagement state with the striker member, the striker side positioning hole is located at a position where the center substantially coincides with the latch side positioning hole. A lock device for construction machinery characterized by being formed. In claim 1,
A lock device for a construction machine, wherein the hole diameter of the latch-side positioning hole and the hole diameter of the striker-side positioning hole are substantially the same size. In claim 1,
The striker member is configured to be bolted to the upper swing body.
The latch member has an access through hole that allows the striker side positioning hole and the first fastening bolt for fastening the bolt to be visually visible and the first fastening bolt can be fastened while the open / close cover is closed. A locking device for construction machinery characterized by being formed. In claim 3,
The striker member is a construction machine characterized in that, in addition to the first fastening bolt, a second fastening bolt that cannot be fastened from the access through hole is bolted to the upper swivel body. Locking device. In claim 3 or 4,
The access through hole is a lock device for construction machinery, characterized in that it is detachably covered with a blind cap. It is a method of positioning a lock device of a construction machine for locking an opening / closing cover that can open / close an opening formed in an upper swing body at a closed position.
The locking device includes a latch member provided with an engaging claw and attached to the opening / closing cover, and a striker member provided with an engaged portion engaged with the engaging claw.
The latch member is formed with a latch-side positioning hole that penetrates in the thickness direction of the opening / closing cover.
When the engaging claw engages with the engaged portion in a predetermined engagement state with the striker member, the striker side positioning hole is located at a position where the center substantially coincides with the latch side positioning hole. Is formed,
A step of temporarily fixing the striker member to the upper swing body so that the position can be adjusted, and
By closing the open / close cover and inserting a rod-shaped positioning jig through the latch-side positioning hole and inserting it into the striker-side positioning hole, the position of the striker member is adjusted, and the latch-side positioning hole and the striker-side positioning are performed. The process of roughly matching the center position with the hole,
A method for positioning a lock device, which comprises a step of opening the opening / closing cover and fixing the striker member to the upper swing body at a position after adjusting the position. The method for positioning a lock device for a construction machine according to any one of claims 3 to 5.
A step of temporarily fixing the striker member to the upper swing body so that the position can be adjusted, and
By closing the opening / closing cover, inserting a rod-shaped positioning jig through the latch-side positioning hole through the access through hole, and inserting the rod-shaped positioning jig into the striker-side positioning hole, the position of the striker member is adjusted and the latch-side positioning is performed. The process of substantially matching the center position of the hole and the striker side positioning hole,
It includes a step of fixing the striker member to the upper swing body at a position after adjusting the position by fastening the first fastening bolt through the access through hole with the opening / closing cover closed. A method for positioning a locking device, which comprises.

Images